{"id":14806,"date":"2024-07-31T10:45:01","date_gmt":"2024-07-31T08:45:01","guid":{"rendered":"https:\/\/www.hydrograv.com\/?page_id=14806"},"modified":"2024-10-25T09:16:24","modified_gmt":"2024-10-25T07:16:24","slug":"hydrograv-adapt-2","status":"publish","type":"page","link":"https:\/\/www.hydrograv.com\/en\/hydrograv-adapt-2\/","title":{"rendered":"hydrograv adapt"},"content":{"rendered":"<div id='revolutionslider_1'  class='avia-layerslider avia-revolutionslider main_color avia-shadow  avia-builder-el-0  el_before_av_section  avia-builder-el-first   container_wrap sidebar_right' style=' '  >\n\t\t\t<!-- START hydroadaptunterseite en REVOLUTION SLIDER 6.6.15 --><p class=\"rs-p-wp-fix\"><\/p>\n\t\t\t<rs-module-wrap id=\"rev_slider_4_1_wrapper\" data-source=\"gallery\" style=\"visibility:hidden;background:transparent;padding:0;margin:0px auto;margin-top:0;margin-bottom:0;\">\n\t\t\t\t<rs-module id=\"rev_slider_4_1\" style=\"\" data-version=\"6.6.15\">\n\t\t\t\t\t<rs-slides 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class='entry-content-wrapper clearfix'>\n<div class=\"flex_column av_two_fifth  av-break-at-tablet flex_column_div av-zero-column-padding first  avia-builder-el-2  el_before_av_three_fifth  avia-builder-el-first  \" style='border-radius:0px; '><div  class='avia-image-container  av-styling-    avia-builder-el-3  avia-builder-el-no-sibling  hydro-gif avia-align- '  itemprop=\"image\" itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/ImageObject\"  ><div class='avia-image-container-inner'><div class='avia-image-overlay-wrap'><img class='avia_image' src='https:\/\/www.hydrograv.com\/wp-content\/uploads\/2020\/08\/adapt-2-0-final.gif' alt='Hydrograv Adapt 2.0' title='adapt-2-0-final' height=\"412\" width=\"460\"  itemprop=\"thumbnailUrl\"  \/><\/div><\/div><\/div><\/div><div class=\"flex_column av_three_fifth  av-break-at-tablet flex_column_div av-zero-column-padding   avia-builder-el-4  el_after_av_two_fifth  el_before_av_one_full  adapt-intro-bg \" style='border-radius:0px; ' id=\"the-smart-solution\" ><p><div  style='padding-bottom:10px; ' class='av-special-heading av-special-heading-h2  blockquote modern-quote  avia-builder-el-5  el_before_av_textblock  avia-builder-el-first  '><h2 class='av-special-heading-tag '  itemprop=\"headline\"  >ADAPT Next \u2013 The smart solution.<\/h2><div class ='av-subheading av-subheading_below  ' style='font-size:15px;'><p>0.2 mg\/l P<sub>ges<\/sub> in the effluent of wastewater treatment plants now also without filter<\/p>\n<\/div><div class='special-heading-border'><div class='special-heading-inner-border' ><\/div><\/div><\/div><br \/>\n<section class=\"av_textblock_section \"  itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/CreativeWork\" ><div class='avia_textblock  '   itemprop=\"text\" ><p>Secondary clarifiers are the &#8220;problem children&#8221; of many wastewater treatment plants, the cause of high effluent turbidity and the &#8220;bottleneck&#8221; of the hydraulic load capacity of the entire wastewater treatment plant.<\/p>\n<p>The hydrograv GmbH could show that the cause of all these problems is the rigid design of the inlet structures. It appears that a rigid structure is almost always in the wrong place with the wrong geometry: in dry weather too high to minimize the turbidity, in rainy weather too low to not whirl up the settled sludge. Therefore it was clear: the inlet structure must be designed variably, the concept for hydrograv Adapt was born.<\/p>\n<p>Since 2018 the Adapt system has been proving that very good things can also be improved: since then the patent-pending phosphorus elimination ring &#8211; PER &#8211; ensures that even clearer water flows out of the tanks. Already in use at several plants, for example in Frankenberg\/Eder and in Schl\u00fcchtern, it has already proven over many months that the total phosphorus in the effluent of a wastewater treatment plant can be reduced to monthly average values of only 0.2 mg\/l Pges with the Adapt Next system with PER, even without additional filtration.<\/p>\n<p>hydrograv Adapt Next with PER solves the TSS problem at its cause &#8211; the inlet of the secondary clarification &#8211; instead of curing the symptoms with one filtration only, which is expensive and energy and maintenance intensive.<\/p>\n<\/div><\/section><\/p><\/div><div class=\"flex_column av_one_full  flex_column_div av-zero-column-padding first  avia-builder-el-7  el_after_av_three_fifth  el_before_av_one_full  adapt-section-sec \" style='border-radius:0px; ' id=\"benefits-and-details\" ><p><div  class='avia-image-container  av-styling-  noHover  av-overlay-hover-deactivate   avia-builder-el-8  el_before_av_heading  avia-builder-el-first  luftbild-dreseden-img avia-align-center '  itemprop=\"image\" itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/ImageObject\"  ><div class='avia-image-container-inner'><div class='avia-image-overlay-wrap'><div class='av-image-caption-overlay'><div class='av-caption-image-overlay-bg' style='opacity:0.2; '><\/div><div class='av-image-caption-overlay-position'><div class='av-image-caption-overlay-center' style='color:#ffffff; '><p>Installation of the height-variable inlet system in the last out of six secondary settling tanks at a large wastewater treatment plant.<\/p>\n<\/div><\/div><\/div><img class='avia_image' src='https:\/\/www.hydrograv.com\/wp-content\/uploads\/2020\/08\/luftbild-dresden-kaditz-1.jpg' alt='luftbild-dresden-kaditz' title='luftbild-dresden-kaditz' height=\"513\" width=\"1124\"  itemprop=\"thumbnailUrl\"  \/><\/div><\/div><\/div><br \/>\n<div  style='padding-bottom:10px; ' class='av-special-heading av-special-heading-h2  blockquote modern-quote  avia-builder-el-9  el_after_av_image  el_before_av_textblock  '><div class ='av-subheading av-subheading_above  ' style='font-size:15px;'><p>hydrograv Adapt at a glance:<\/p>\n<\/div><h2 class='av-special-heading-tag '  itemprop=\"headline\"  >The main advantages of the height-variable inlet system<\/h2><div class='special-heading-border'><div class='special-heading-inner-border' ><\/div><\/div><\/div><br \/>\n<section class=\"av_textblock_section \"  itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/CreativeWork\" ><div class='avia_textblock  '   itemprop=\"text\" ><ul>\n<li>No more sludge overflow by securing the flock filter effect.<\/li>\n<li>Less sludge displacement in rainy weather makes for a higher sludge concentration and thus for better degradation capacity in the activation.<\/li>\n<li>A lower sludge level and a stable sludge bed lead to increased operational safety.<\/li>\n<li>Minimal particulate phosphor and COD in the effluent. On average and in the tips. I.e. sustainable water protection and conservation of wastewater levy.<\/li>\n<li>Flock filter in the secondary clarification instead of the downstream filtration. This minimized investment costs and significant energy savings.<\/li>\n<li>Ideal support for elimination removal with activated carbon.<\/li>\n<li>More mixed water through the wastewater treatment plant.<\/li>\n<li>Expanding without building new secondary settling tanks.<\/li>\n<\/ul>\n<p>Thus hydrograv Adapt defines the state of the art in the equipment of secondary settling tanks.<br \/>\nhydrograv Adapt \u2013 a patented technology of the hydrograv GmbH.<\/p>\n<\/div><\/section><\/p><\/div><div class=\"flex_column av_one_full  flex_column_div av-zero-column-padding first  avia-builder-el-11  el_after_av_one_full  el_before_av_one_full  section-adapt-third column-top-margin\" style='border-radius:0px; '><div  class=\"togglecontainer  av-elegant-toggle toggle_close_all  avia-builder-el-12  avia-builder-el-no-sibling  adapt-akk-wrapper\" >\n<section class=\"av_toggle_section\"  itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/CreativeWork\"  >    <div role=\"tablist\" class=\"single_toggle\" data-tags=\"{All} \"  >        <p data-fake-id=\"#toggle-id-1\" class=\"toggler \"  itemprop=\"headline\"    role=\"tab\" tabindex=\"0\" aria-controls=\"toggle-id-1-container\">Learn more details about ADAPT Next<span class=\"toggle_icon\" >        <span class=\"vert_icon\"><\/span><span class=\"hor_icon\"><\/span><\/span><\/p>        <div id=\"toggle-id-1-container\" class=\"toggle_wrap \"  >            <div class=\"toggle_content invers-color \"  itemprop=\"text\"   ><p>Flow simulations of hydrograv to over one hundred secondary settling tanks show that this concept is almost always cheaper for continuous low effluent values, a high load capacity and the avoidance of sludge overflow.<\/p>\n<div class=\"bild-wrapper\" style=\"text-align: left;\"><img loading=\"lazy\" decoding=\"async\" class=\"bild-txt-pad-left wp-image-5264 size-full alignleft\" src=\"\/wp-content\/uploads\/2017\/04\/adapt-Blick-NKB-variante-2-sk.jpg\" alt=\"\" width=\"335\" height=\"223\" \/><img loading=\"lazy\" decoding=\"async\" class=\"bild-txt-pad-left wp-image-4624 size-full alignleft\" src=\"\/wp-content\/uploads\/2017\/04\/adapt-Blick-NKB-2-variante-2-sk.jpg\" alt=\"\" width=\"335\" height=\"223\" \/><br \/>\n<strong><br \/>\nAbbildung:<br \/>\n<\/strong>Look into two secondary settling tanks of a wastewater treatment plant with an old fixed inlet structure (left) and with the hydrograv Adapt inlet structure (right). Significantly fewer flocks in plain water!<\/div>\n<p>In the meantime this rugged construction ensures impressive results for several years on a variety of wastewater treatment plants:<\/p>\n<ul>\n<li>Discharge values \u200b\u200bthat can usually only be reached with the installation of sand filter systems \u2013 at a fraction of the cost, the energy input and the maintenance requirements.<\/li>\n<li>Further phosphor elimination goals can be achieved with hydrograv Adapt at a fraction of the previously anticipated financial expenses.<\/li>\n<li>Hydraulic loads become reliably treatable, which was considered impossible previously.<\/li>\n<\/ul>\n<p>Some of many examples of these excellent operating results can be found on the following pages. We gladly send you further references. You are welcome to arrange viewing appointments on wastewater treatment plants in your area with already refitted secondary settling tanks with us as well.<\/p>\n<p>With hydrograv Adapt the hydrograv GmbH consequently makes a significant contribution to the environmental protection \u2013 while protecting the financial resources of the wastewater treatment plant operators.<\/p>\n            <\/div>        <\/div>    <\/div><\/section>\n<section class=\"av_toggle_section\"  itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/CreativeWork\"  >    <div role=\"tablist\" class=\"single_toggle\" data-tags=\"{All} \"  >        <p data-fake-id=\"#state-of-the-art\" class=\"toggler \"  itemprop=\"headline\"    role=\"tab\" tabindex=\"0\" aria-controls=\"state-of-the-art-container\">State of the art and more<span class=\"toggle_icon\" >        <span class=\"vert_icon\"><\/span><span class=\"hor_icon\"><\/span><\/span><\/p>        <div id=\"state-of-the-art-container\" class=\"toggle_wrap \"  >            <div class=\"toggle_content invers-color \"  itemprop=\"text\"   ><h2>THE HYDROGRAV ADAPT INLET SYSTEM<\/h2>\n<p><strong>Tried and tested in practice for years<\/strong><\/p>\n<p>Until today several dozens of hydrograv Adapt systems have been installed and prove their reliability cumulatively over several hundred years of operation. The success for our environment in the installations: regularly much clearer wastewater in the outlet than with the previously existing rigid inlet constructions. This also applies to various &#8220;rigid optimizations&#8221; built by third parties according to CFD analyses, which in the meantime have been replaced by hydrograv Adapt with &#8220;clear&#8221; success.<\/p>\n<p><strong>Successful for the environment<\/strong><\/p>\n<p>To redefine the state of the art, a technology must reduce the emissions of a plant into the environment to a new, clearly lower level. Exactly this is the result of dozens of installations of hydrograv Adapt inlet systems: the average filterable substances measured by the operators are at 2 to 3 mg\/l regularly and thus the particulate phosphorus in the effluent of the secondary clarification is at the lowest level. Again and again the total phosphorus effluent values of the wastewater treatment plants equipped with Adapt decrease by almost the entire amount of particulate phosphorus &#8211; completely without downstream filtration. The state of the art for filterable substances in the effluent of wastewater treatment plants is thus defined by the emission values achievable with Adapt systems, which are on average well below 5 mg\/l.<\/p>\n<p><strong>Known by experts<\/strong><\/p>\n<p>The state of the art is establishing itself as a generally accepted rule of the art due to its familiarity among technical experts and its sustained success in practical operation. Both is constituted by hydrograv Adapt. Since the success of the prototype in Cologne Weiden more than 10 years ago numerous articles have been published, various lectures at seminars and further education events have been held. Also the wastewater treatment plant operators themselves inform in lectures again and again about the success of the technology, for example at wastewater treatment plant neighbourhood meetings.<\/p>\n<p>Since 2016, the height-variable solution for the inlet geometry of secondary clarifiers has been mentioned in the German standard work of dimensioning, the worksheet DWA-A 131.<\/p>\n<p><strong>hydrograv Adapt &#8211; Generally accepted rules of technology<\/strong><\/p>\n<p>All this allows only one conclusion: hydrograv Adapt is more than just state-of-the-art technology. The equipment of secondary clarifiers with hydrograv Adapt meanwhile fulfils the characteristics of the generally accepted rules of technology!<\/p>\n<p>hydrograv Adapt has been enjoying a steadily increasing popularity both nationally and internationally since its first commissioning in 2007. And not only that, the number of Adapt installations abroad is also increasing. Always with the same results: clearer water in the effluent with simultaneously increasing efficiency and safety of the secondary clarifiers.<\/p>\n<p>For further information please click <a href=\"\/en\/hydrograv-adapt\/\">here<\/a> or contact us <a href=\"mailto:info@hydrograv.com\">directly<\/a>.<\/p>\n<p>&#8220;Generally accepted rules of technology&#8221; are those techniques which are considered by expert second and third parties from the respective industry as a solution for legally defined goals and which have already proven themselves in practice over several years or will prove themselves in the near future.<sup>1<\/sup><\/p>\n<p><small><sup>1<\/sup> <a href=\"https:\/\/de.wikipedia.org\/wiki\/Anerkannte_Regeln_der_Technik\" target=\"_blank\" rel=\"noopener\">https:\/\/de.wikipedia.org\/wiki\/Anerkannte_Regeln_der_Technik<\/a><\/small><\/p>\n            <\/div>        <\/div>    <\/div><\/section>\n<\/div><\/div><div class=\"flex_column av_one_full  flex_column_div av-zero-column-padding first  avia-builder-el-13  el_after_av_one_full  el_before_av_one_full  section-erfolge column-top-margin\" style='border-radius:0px; '><p><div  id=\"our-successes\"  style='padding-bottom:0px; ' class='av-special-heading av-special-heading-h2  blockquote modern-quote  avia-builder-el-14  el_before_av_tab_container  avia-builder-el-first  erfolge-headline '><h2 class='av-special-heading-tag '  itemprop=\"headline\"  >Our successes<\/h2><div class='special-heading-border'><div class='special-heading-inner-border' ><\/div><\/div><\/div><br \/>\n<div  class=\"tabcontainer   top_tab   avia-builder-el-15  el_after_av_heading  avia-builder-el-last \">\n\n<section class=\"av_tab_section\"  itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/CreativeWork\" ><div aria-controls=\"tab-id-1\" role=\"tab\" tabindex=\"0\" data-fake-id=\"#tab-id-1\" class=\"tab active_tab\"  itemprop=\"headline\" >Cologne-Weiden<\/div>\n<div id=\"tab-id-1-container\" class=\"tab_content active_tab_content\" aria-hidden=\"false\">\n<div class=\"tab_inner_content invers-color\"  itemprop=\"text\" >\n<h3>HYDROGRAV ADAPT-INLET SYSTEMS<\/h3>\n<h3>Cologne-Weiden<\/h3>\n<p><strong>hydrograv Adapt ensures a working flocculation filtration already in the secondary clarification at any load. And with manageable technical effort, with slight energy requirement and low-maintenance. In addition, so the capacity of the secondary settling tanks is increased.<\/strong><\/p>\n<p>Sludge overflow and flock output \u2013 for all the progress of the wastewater technology, this is still a major problem in many wastewater treatment plants. Yet this leads to<\/p>\n<ul>\n<li>unnecessary environmental pollution,<\/li>\n<li>high wastewater charges and<\/li>\n<li>exceedance of the discharge limits.<\/li>\n<\/ul>\n<p>It is known that secondary settling tanks have very good discharge values \u200b\u200bwhen the sludge is introduced into the tank below the sludge level. Then the flock filter works \u2013 and that is as effective as the expensive and energy-intensive downstream technical filters. hydrograv Adapt exploits this flock filter always consistently with its height-variability.<\/p>\n<p class=\"bild-wrapper\"><img decoding=\"async\" class=\"bild-txt-pad-left wp-image-5264 size-full alignleft\" src=\"\/wp-content\/uploads\/2017\/03\/Koeln-Weiden-P06-076E-adapt-geflutet.png\" alt=\"\" width=\"50%\" height=\"auto\" \/><img decoding=\"async\" class=\"bild-txt-pad-left wp-image-4624 size-full alignright\" src=\"\/wp-content\/uploads\/2017\/04\/Koeln-adapt-Koeln-Weiden-sk.jpg\" alt=\"\" width=\"50%\" height=\"auto\" \/><\/p>\n<p>IIn September 2007, the first hydrograv Adapt inlet structure was put into operation in a secondary settling tank at the wastewater treatment plant Cologne-Weiden. The second secondary settling tank of this wastewater treatment plant is equipped with a conventional fixed inlet structure. A comparison of the operating results of both tanks is advisable.<\/p>\n<p>A tank equipped with hydrograv Adapt consistently shows better results:<\/p>\n<ul>\n<li>significantly lower sludge level, especially in rainy weather; i.e. higher security against sludge overflow or a higher hydraulic capacity as well,<\/li>\n<li>smaller filterable substances and considerably less visible fine flocks in the discharge,<\/li>\n<li>greater visibility depth (i.e. clear water),<\/li>\n<li>significantly lower floating sludge formation.<\/li>\n<\/ul>\n<p class=\"bild-wrapper\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone\" src=\"\/wp-content\/uploads\/2017\/04\/Koeln-Weiden-Schlammspiegellagen_TW_sk.jpg\" alt=\"\" width=\"335\" height=\"223\" \/><img loading=\"lazy\" decoding=\"async\" class=\"alignnone\" src=\"\/wp-content\/uploads\/2017\/04\/Koeln-Weiden-Schlammspiegellagen_RW_sk.jpg\" alt=\"\" width=\"335\" height=\"223\" \/><\/p>\n<p><strong>Picture<\/strong>: Comparison of sludge level positions in the two secondary settling tanks of the WWTP Cologne-Weiden, on the left a dry weather period, on the right a rain period. Difference of the sludge blanket layers are up to 80 cm.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-5461 aligncenter\" src=\"\/wp-content\/uploads\/2017\/06\/NK-Flaschenhals-qsvdiagramm-dt-sk.jpg\" alt=\"\" width=\"780\" height=\"353\" \/><\/p>\n<p><strong>Picture<\/strong>: q<sub>SV<\/sub> charges of 230 % of the permitted limit according to DWA-A 131 could be treated reliably in the hydrograv Adapt tank. q<sub>A<\/sub> = 2 m\/h.<\/p>\n<p>Higher reliable secondary settling tanks enable lower combined sewer overflows in the catchment area, and even that is active water protection, because:<\/p>\n<ul>\n<li>Connecting new catchment areas without the need to build a new secondary settling tank.<\/li>\n<li>Relieve less wastewater uncleaned \u2013 more mixed water through the wastewater plant.<\/li>\n<li>Forgo a bypass around the activation \u2013 or activate it only at much higher loads.<\/li>\n<li>Using released secondary settling tanks for other process steps such as the trace substance elimination.<strong>\u00a0\u00a0 <\/strong><strong><br \/>\n<\/strong><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-5465 aligncenter\" src=\"\/wp-content\/uploads\/2017\/04\/Koeln-Weiden_AFS-Messwerte2009_sk.jpg\" alt=\"\" width=\"780\" height=\"353\" \/><\/li>\n<li><strong>Picture<\/strong>: Comparison of filterable substance values in the discharge of the two secondary settling tanks of the wastewater treatment plant Cologne-Weiden. Continuously lower filterable substance values of hydrograv Adapt tanks on average and in the tips.<\/li>\n<\/ul>\n\n<\/div>\n<\/div>\n<\/section>\n\n<section class=\"av_tab_section\"  itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/CreativeWork\" ><div aria-controls=\"tab-id-2\" role=\"tab\" tabindex=\"0\" data-fake-id=\"#tab-id-2\" class=\"tab \"  itemprop=\"headline\" >Bad Berleburg<\/div>\n<div id=\"tab-id-2-container\" class=\"tab_content \" aria-hidden=\"true\">\n<div class=\"tab_inner_content invers-color\"  itemprop=\"text\" >\n<h3>HYDROGRAV ADAPT-INLET SYSTEMS<\/h3>\n<h3>Bad Berleburg<\/h3>\n<p><strong>Continuous utilisation of the flock filter in the secondary settling tank with hydrograv Adapt.<\/strong><\/p>\n<p>Because the inlet system and thus the flow situation in the secondary settling tank always Adapts to the current load.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-5455 size-full aligncenter\" src=\"\/wp-content\/uploads\/2017\/06\/Bad_Berleburg_Ablauftruebung_sk.jpg\" alt=\"\" width=\"780\" height=\"353\" \/><\/p>\n<p><strong>Picture<\/strong>: Change of the discharge turbidity (blue graph) when turning on the control of the hydrograv Adapt inlet system (because of a conversion of the PLS previously as a fixed inlet operating at an elevation of 1.5 meters above the sole recommended by the A 131 (2016)). Excerpt from the process control system. Immediate halving of the discharge turbidity after hydrograv Adapt has lowered itself automatically according to the current secondary settling tank load.<\/p>\n<p><strong>\u00a0<\/strong><\/p>\n<p><strong>The hydrograv Adapt system includes:<\/strong><\/p>\n<ul>\n<li>A robust and durable construction.<\/li>\n<li>Reliable mechanical engineering, consistently manufactured in stainless steel.<\/li>\n<li>A complex E\/MSR, on the basis of leading expertise, tailored to each individual wastewater treatment plant and therefore easily controllable.<\/li>\n<li>Numerous monitoring functions for the operator, alerts and alarms based on the latest methods.<\/li>\n<li>A sophisticated, computerized sludge management system that holds the maximum of the sludge in the activation \u2013 particularly in rainy weather when it is needed the most there.<\/li>\n<\/ul>\n<p><strong>\u00a0<\/strong><\/p>\n\n<\/div>\n<\/div>\n<\/section>\n\n<section class=\"av_tab_section\"  itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/CreativeWork\" ><div aria-controls=\"tab-id-3\" role=\"tab\" tabindex=\"0\" data-fake-id=\"#tab-id-3\" class=\"tab \"  itemprop=\"headline\" >Dresden-Kaditz<\/div>\n<div id=\"tab-id-3-container\" class=\"tab_content \" aria-hidden=\"true\">\n<div class=\"tab_inner_content invers-color\"  itemprop=\"text\" >\n<h3>HYDROGRAV ADAPT-INLET SYSTEMS<\/h3>\n<h3>Dresden-Kaditz<\/h3>\n<p><strong>A better cleaning performance of the secondary settling tanks with hydrograv Adapt not only means clearer discharged water but also reduced COD and phosphor emissions and relating thereto the lower precipitant application and finally the ability to operate the activation stage with higher dry substances.<\/strong><\/p>\n<p>After the conversion of the secondary settling tanks of the wastewater treatment plant Dresden-Kaditz significantly better discharge values are achieved with regard to the turbidity and the filterable substances. The average monthly discharge turbidity continuously drops to about 2 FNU and thus amounts consistently to only one third of the values \u200b\u200bbefore the conversion.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-5456 aligncenter\" src=\"\/wp-content\/uploads\/2017\/06\/Dresden-Kaditz_Diagr_Truebung_sk.jpg\" alt=\"\" width=\"780\" height=\"353\" \/><\/p>\n<p><strong>Picture<\/strong>: Turbidity in the discharge of the wastewater treatment plant Dresden-Kaditz before and after the conversion of the secondary settling tanks with hydrograv Adapt inlet systems.<\/p>\n<p>During the conversion this can doubtlessly be seen with the naked eye. The clear water of an already refitted tank is much cleaner at the same load and contains fewer flocks.<\/p>\n<p><img decoding=\"async\" class=\"wp-image-5663 size-full alignnone\" src=\"\/wp-content\/uploads\/2017\/04\/Blick-in-NKB3-4_sk.jpg\" alt=\"\" width=\"50%\" height=\"auto\" \/><img decoding=\"async\" class=\"wp-image-5128 size-full alignnone\" src=\"\/wp-content\/uploads\/2017\/03\/nkb-danach.png\" alt=\"\" width=\"50%\" height=\"auto\" \/><\/p>\n<p><strong>Picture<\/strong>: Look into the secondary settling tanks in the area of the drainpipes in a tank with an old inlet structure (left) and an already converted tank (right). Clean and flock-free clear water.<\/p>\n<p>With the turbidity the measured values for filterable substances and also for the total phosphor decreased: a significant improvement of continuous 0.1 to 0.2 mg\/l for P<sub>tot<\/sub> is proven. Since the 2-point precipitation is operated with the same dosing strategy before and after the conversion, the decrease of P<sub>tot<\/sub> is due to the reduced output of filterable substances. After the conversion they now even require significantly less precipitant at a clearly lower P<sub>tot<\/sub> in the expiry of the wastewater treatment plant, thus saving operating costs.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-5458 aligncenter\" src=\"\/wp-content\/uploads\/2017\/06\/Dresden-Kaditz_P-Konzentration_sk.jpg\" alt=\"\" width=\"780\" height=\"353\" \/><\/p>\n<p><strong>Picture<\/strong>: P<sub>tot<\/sub> concentration in the discharge of the wastewater treatment plant Dresden-Kaditz in several years of operation.<\/p>\n<p>With this relatively simple conversion of the secondary settling tanks inlet systems the discharge values \u200b\u200bwere significantly improved even without filtration. The tanks are simultaneously more effective regarding hydraulic and material load. With the conversion the structural expansion of the secondary clarification was avoided, and at the same time a higher dimensioning of solids content for the activation was enabled. This led to significant investment cost savings in activation tank volume.<\/p>\n<p><strong>Conclusion: Height-variable inlet systems define the state of the art for secondary settling tanks in wastewater treatment plants without filtration with minimal filterable substances and discharge turbidities of about 2 FNU.<\/strong><\/p>\n<p>Source: Armbruster, M. Barth, M.: Kl\u00e4ranlage Dresden \u2013 Potenziale moderner Nachkl\u00e4rbeckeneinl\u00e4ufe, in: wwt \u2013 Wasserwirtschaft Wassertechnik \u2013 Modernisierungsreport 2016\/2017, 2017, pp 24-30.<\/p>\n\n<\/div>\n<\/div>\n<\/section>\n\n<section class=\"av_tab_section\"  itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/CreativeWork\" ><div aria-controls=\"tab-id-4\" role=\"tab\" tabindex=\"0\" data-fake-id=\"#tab-id-4\" class=\"tab \"  itemprop=\"headline\" >Moers-Gerdt<\/div>\n<div id=\"tab-id-4-container\" class=\"tab_content \" aria-hidden=\"true\">\n<div class=\"tab_inner_content invers-color\"  itemprop=\"text\" >\n<h3>HYDROGRAV ADAPT-INLET SYSTEMS<\/h3>\n<h3>Moers-Gerdt<\/h3>\n<p><strong>With the height-variable inlet system hydrograv Adapt sludge overflow and flock output from the clarification are consistently avoidable<\/strong>.<\/p>\n<p>Obviously, the clear discharge not only constitutes an optical advantage because the many reliably settled sludge flocks correspond to particulate COD and contain phosphor, that do not enter the environment that way.<\/p>\n<p>Phosphor enrichment in waters is a pressing environmental problem. This leads to eutrophication and oxygen deficiency. The focus of the discussion is on the minimization of the phosphor load of wastewater treatment plants. Thereby the experts always name the same measures for a reduction: precipitation, biological P elimination and technical filtration. And the secondary settling tanks? Are rarely mentioned in this discussion.<\/p>\n<p>However especially the clarifiers are crucial for the freight of particulate phosphor.<\/p>\n<p>With poorly designed inlet structures downstream sand and flock filters only cure the symptoms of inefficient secondary clarification with significant investment costs and immense energy requirements connected with the corresponding carbon dioxide emissions.<\/p>\n<p><strong>With hydrograv Adapt the COD and phosphor discharge values \u200b\u200bare continuously and reliably minimized.<\/strong><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-4685 aligncenter\" src=\"\/wp-content\/uploads\/2017\/04\/Moers-Gerdt-Betriebsergebnisse-Pges.jpg\" alt=\"\" width=\"978\" height=\"630\" \/><\/p>\n<p><strong>Picture<\/strong>: P<sub>tot<\/sub> discharge values of the wastewater treatment plant Moers-Gerdt, on the left still with the old fixed inlet structures and on the right with hydrograv Adapt inlet systems in the secondary settling tanks. Discharge-phosphor is reduced on average and in the tips. Thanks to hydrograv Adapt the total phosphor in the discharge of the wastewater treatment plant was lowered to P<sub>tot<\/sub> &lt; 0.5 mg\/l.<\/p>\n<p><em>\u201eAfter installing the hydrograv Adapt inlet systems at the WWTP Moers-Gerdt we could determine a reduction in freight P<sub>tot<\/sub> of almost 30% and with the CSB of 25%. Thus, we can offset the investment costs with the wastewater levy.\u201c <\/em>\u2013 Peter Birken, head of wastewater LINEG<\/p>\n<p><img decoding=\"async\" class=\"bild-txt-pad-left wp-image-5078 alignleft\" src=\"\/wp-content\/uploads\/2017\/04\/Moers-P08-131GE-Fertigbild_NKB3-2010sk-1.jpg\" alt=\"\" width=\"50%\" height=\"auto\" \/><img decoding=\"async\" class=\"bild-txt-pad-left wp-image-5128 size-full alignright\" src=\"\/wp-content\/uploads\/2017\/04\/Moers-Gerdt-Umbau-Sichtfenster-P1120718-sk.jpg\" alt=\"\" width=\"50%\" height=\"auto\" \/><\/p>\n<p><strong>Picture<\/strong>: hydrograv Adapt installation on the WWTP Moers-Gerdt. Successful solution for scrapers with underwater drive.<\/p>\n\n<\/div>\n<\/div>\n<\/section>\n\n<\/div>\n<\/p><\/div><div class=\"flex_column av_one_full  flex_column_div av-zero-column-padding first  avia-builder-el-16  el_after_av_one_full  avia-builder-el-last  section-adapt-third column-top-margin\" style='border-radius:0px; '><div  class=\"togglecontainer  av-elegant-toggle toggle_close_all  avia-builder-el-17  avia-builder-el-no-sibling  adapt-akk-wrapper\" >\n<section class=\"av_toggle_section\"  itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/CreativeWork\"  >    <div role=\"tablist\" class=\"single_toggle\" data-tags=\"{All} \"  >        <p data-fake-id=\"#ref-popup\" class=\"toggler \"  itemprop=\"headline\"    role=\"tab\" tabindex=\"0\" aria-controls=\"ref-popup-container\">Credentials<span class=\"toggle_icon\" >        <span class=\"vert_icon\"><\/span><span class=\"hor_icon\"><\/span><\/span><\/p>        <div id=\"ref-popup-container\" class=\"toggle_wrap \"  >            <div class=\"toggle_content invers-color \"  itemprop=\"text\"   ><h3>Here is a selection of references of hydrograv Adapt systems.<\/h3>\n<p>The success of an Adapt-installation can be seen immediately in the secondary clarifier:<br \/>\nclear water in the outlet and a sinking sludge level. Therefore many of our satisfied customers have already equipped several of their treatment plants with Adapt after the installation.<\/p>\n<p><span class='pum-trigger  popmake-8549  ' data-do-default=''>Altom\u00fcnster<br \/>\n14.000 EW <\/span><br \/>\n<span class='pum-trigger  popmake-8553  ' data-do-default=''>Bad Berleburg-Aue<br \/>\n5.800 EW <\/span><br \/>\n<span class='pum-trigger  popmake-8556  ' data-do-default=''>Bad Berleburg Stadt<br \/>\n18.000 EW <\/span><br \/>\n<span class='pum-trigger  popmake-8559  ' data-do-default=''>Bad Harzburg<br \/>\n40.000 EW <\/span><br \/>\n<span class='pum-trigger  popmake-8562  ' data-do-default=''>Bad Marienberg<br \/>\n11.500 EW <\/span><br \/>\n<span class='pum-trigger  popmake-8567  ' data-do-default=''>Chemnitz<br \/>\n400.000 EW <\/span><br \/>\n<span class='pum-trigger  popmake-8570  ' data-do-default=''>Dorsten-Wulfen<br \/>\n30.000 EW <\/span><br \/>\n<span class='pum-trigger  popmake-8573  ' data-do-default=''>Dresden Kaditz<br \/>\n740.000 EW <\/span><br \/>\n<span class='pum-trigger  popmake-8576  ' data-do-default=''>D\u00fclken<br \/>\n72.000 EW <\/span><br \/>\n<span class='pum-trigger  popmake-8579  ' data-do-default=''>Erlangen<br \/>\n270.000 EW <\/span><br \/>\n<span class='pum-trigger  popmake-8582  ' data-do-default=''>Frankenberg\/Eder<br \/>\n29.000 EW <\/span><br \/>\n<span class='pum-trigger  popmake-8585  ' data-do-default=''>F\u00fcrth<br \/>\n310.000 EW <\/span><br \/>\n<span class='pum-trigger  popmake-8590  ' data-do-default=''>Gro\u00dfostheim<br \/>\n35.000 EW <\/span><br \/>\n<span class='pum-trigger  popmake-8593  ' data-do-default=''>Haimhausen<br \/>\n8.800 EW <\/span><br \/>\n<span class='pum-trigger  popmake-8596  ' data-do-default=''>Halle-Nord<br \/>\n300.000 EW <\/span><br \/>\n<span class='pum-trigger  popmake-8603  ' data-do-default=''>H\u00fcnfeld<br \/>\n35.000 EW <\/span><br \/>\n<span class='pum-trigger  popmake-8617  ' data-do-default=''>Kevelaer-Weeze<br \/>\n35.000 EW <\/span><br \/>\n<span class='pum-trigger  popmake-8620  ' data-do-default=''>K\u00f6ln-Rodenkirchen<br \/>\n88.000 EW <\/span><br \/>\n<span class='pum-trigger  popmake-8640  ' data-do-default=''>K\u00f6ln Porz-Wahn<br \/>\n92.000 EW <\/span><br \/>\n<span class='pum-trigger  popmake-8634  ' data-do-default=''>K\u00f6ln-Weiden<br \/>\n80.000 EW <\/span><br \/>\n<span class='pum-trigger  popmake-8664  ' data-do-default=''>Leuzbach<br \/>\n23.000 EW <\/span><br \/>\n<span class='pum-trigger  popmake-8661  ' data-do-default=''>Marburg<br \/>\n155.000 EW <\/span><br \/>\n<span class='pum-trigger  popmake-8646  ' data-do-default=''>Markt Indersdorf<br \/>\n20.000 EW <\/span><br \/>\n<span class='pum-trigger  popmake-8652  ' data-do-default=''>Meckesheim<br \/>\n44.000 EW <\/span><br \/>\n<span class='pum-trigger  popmake-8637  ' data-do-default=''>Moers-Gerdt<br \/>\n200.000 EW <\/span><br \/>\n<span class='pum-trigger  popmake-8685  ' data-do-default=''>Northeim<br \/>\n75.000 EW <\/span><br \/>\n<span class='pum-trigger  popmake-8649  ' data-do-default=''>Odelzhausen<br \/>\n8.000 EW <\/span><br \/>\n<span class='pum-trigger  popmake-8679  ' data-do-default=''>Rednitzhembach<br \/>\n7.900 EW <\/span><br \/>\n<span class='pum-trigger  popmake-8676  ' data-do-default=''>Regensburg<br \/>\n400.000 EW <\/span><br \/>\n<span class='pum-trigger  popmake-8670  ' data-do-default=''>Sandhausen<br \/>\n125.000 EW <\/span><br \/>\n<span class='pum-trigger  popmake-8682  ' data-do-default=''>Schl\u00fcchtern<br \/>\n27.500 EW <\/span><br \/>\n<span class='pum-trigger  popmake-8691  ' data-do-default=''>Schw\u00e4bisch Hall<br \/>\n100.000 EW <\/span><br \/>\n<span class='pum-trigger  popmake-8655  ' data-do-default=''>Stadtlohn<br \/>\n30.500 EW <\/span><br \/>\n<span class='pum-trigger  popmake-8643  ' data-do-default=''>Wei\u00dfenfels<br \/>\n76.500 EW <\/span><br \/>\n<span class='pum-trigger  popmake-8658  ' data-do-default=''>Wuppertal-Kohlfurth<br \/>\n156.000 EW <\/span><br \/>\n<span class='pum-trigger  popmake-8658  ' data-do-default=''>Wuppertal-Kohlfurth<br \/>\n156.000 EW <\/span><\/p>\n            <\/div>        <\/div>    <\/div><\/section>\n<section class=\"av_toggle_section\"  itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/CreativeWork\"  >    <div role=\"tablist\" class=\"single_toggle\" data-tags=\"{All} \"  >        <p data-fake-id=\"#adapt-2-0-in-the-video\" class=\"toggler \"  itemprop=\"headline\"    role=\"tab\" tabindex=\"0\" aria-controls=\"adapt-2-0-in-the-video-container\">ADAPT Next in the video<span class=\"toggle_icon\" >        <span class=\"vert_icon\"><\/span><span class=\"hor_icon\"><\/span><\/span><\/p>        <div id=\"adapt-2-0-in-the-video-container\" class=\"toggle_wrap \"  >            <div class=\"toggle_content invers-color \"  itemprop=\"text\"   ><p><div style=\"width: 1280px;\" class=\"wp-video\"><video class=\"xs-hidden\" id=\"video-14806-1\" width=\"1280\" height=\"720\" preload=\"metadata\" controls=\"controls\"><source type=\"video\/mp4\" src=\"https:\/\/www.hydrograv.com\/wp-content\/uploads\/2020\/08\/adapt-quer-30s-web-komprimiert.mp4?_=1\" \/><a href=\"https:\/\/www.hydrograv.com\/wp-content\/uploads\/2020\/08\/adapt-quer-30s-web-komprimiert.mp4\">https:\/\/www.hydrograv.com\/wp-content\/uploads\/2020\/08\/adapt-quer-30s-web-komprimiert.mp4<\/a><\/video><\/div><br \/>\n<div style=\"width: 1080px;\" class=\"wp-video\"><video class=\"md-hidden md-visible\" id=\"video-14806-2\" width=\"1080\" height=\"1920\" preload=\"metadata\" controls=\"controls\"><source type=\"video\/mp4\" src=\"https:\/\/www.hydrograv.com\/wp-content\/uploads\/2020\/08\/adapt-hochkant-30s-small-web-komprimiert.mp4?_=2\" \/><a href=\"https:\/\/www.hydrograv.com\/wp-content\/uploads\/2020\/08\/adapt-hochkant-30s-small-web-komprimiert.mp4\">https:\/\/www.hydrograv.com\/wp-content\/uploads\/2020\/08\/adapt-hochkant-30s-small-web-komprimiert.mp4<\/a><\/video><\/div><\/p>\n            <\/div>        <\/div>    <\/div><\/section>\n<section class=\"av_toggle_section\"  itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/CreativeWork\"  >    <div role=\"tablist\" class=\"single_toggle\" data-tags=\"{All} \"  >        <p data-fake-id=\"#adapt-downloads\" class=\"toggler \"  itemprop=\"headline\"    role=\"tab\" tabindex=\"0\" aria-controls=\"adapt-downloads-container\">Downloads<span class=\"toggle_icon\" >        <span class=\"vert_icon\"><\/span><span class=\"hor_icon\"><\/span><\/span><\/p>        <div id=\"adapt-downloads-container\" class=\"toggle_wrap \"  >            <div class=\"toggle_content invers-color \"  itemprop=\"text\"   ><div class=\"section-downloads\">\n<div class=\"downloads-row-first\">\n<div class=\"downloads-left\"><img loading=\"lazy\" decoding=\"async\" class=\"alignleft wp-image-8907\" src=\"https:\/\/www.hydrograv.com\/wp-content\/uploads\/2020\/10\/broschuere-en.jpg\" alt=\"Brosch\u00fcre Englisch\" width=\"535\" height=\"768\" srcset=\"https:\/\/www.hydrograv.com\/wp-content\/uploads\/2020\/10\/broschuere-en.jpg 758w, https:\/\/www.hydrograv.com\/wp-content\/uploads\/2020\/10\/broschuere-en-491x705.jpg 491w\" sizes=\"auto, (max-width: 535px) 100vw, 535px\" \/><\/div>\n<div class=\"downloads-right\">\n<p>Adapt Next at a glance:<\/p>\n<p><a href=\"\/en\/downloads\/\" target=\"_blank\" rel=\"noopener\"> Product Brochure (english) <\/a><\/p>\n<\/div>\n<\/div>\n<hr \/>\n<div class=\"downloads-row-second\">\n<div class=\"downloads-left\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-8461 alignleft\" src=\"\/wp-content\/uploads\/2020\/08\/video-img.jpg\" alt=\"Video\" width=\"535\" height=\"768\" \/><\/div>\n<div class=\"downloads-right\">\n<p>Adapt 2.0 in the video:<\/p>\n<p><a href=\"\/wp-content\/uploads\/2020\/08\/adapt-quer-30s-web-komprimiert.mp4\" target=\"_blank\" rel=\"noopener\"> Video als .mp4-Datei <\/a><\/p>\n<\/div>\n<\/div>\n<hr \/>\n<div class=\"downloads-row-third\">\n<div class=\"downloads-left\"><strong> Datei fehlt!<\/strong><\/div>\n<div class=\"downloads-right\">\n<p>Adapt 2.0 \u2013 technisches Datenblatt:<\/p>\n<p><a href=\"#\"> Datenblatt (deutsch) <\/a><br \/>\n<a href=\"#\"> Datenblatt (englisch) <\/a><\/p>\n<\/div>\n<\/div>\n<\/div>\n            <\/div>        <\/div>    <\/div><\/section>\n<\/div><\/div><\/div><\/div><\/div><!-- close content main div --><\/div><\/div><div id='after_section_1'  class='main_color av_default_container_wrap container_wrap sidebar_right' style=' '  ><div class='container' ><div class='template-page content  av-content-small alpha units'><div class='post-entry post-entry-type-page post-entry-14806'><div class='entry-content-wrapper clearfix'>\n","protected":false},"excerpt":{"rendered":"","protected":false},"author":25,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_acf_changed":false,"footnotes":""},"class_list":["post-14806","page","type-page","status-publish","hentry"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.hydrograv.com\/en\/wp-json\/wp\/v2\/pages\/14806","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.hydrograv.com\/en\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.hydrograv.com\/en\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.hydrograv.com\/en\/wp-json\/wp\/v2\/users\/25"}],"replies":[{"embeddable":true,"href":"https:\/\/www.hydrograv.com\/en\/wp-json\/wp\/v2\/comments?post=14806"}],"version-history":[{"count":5,"href":"https:\/\/www.hydrograv.com\/en\/wp-json\/wp\/v2\/pages\/14806\/revisions"}],"predecessor-version":[{"id":15018,"href":"https:\/\/www.hydrograv.com\/en\/wp-json\/wp\/v2\/pages\/14806\/revisions\/15018"}],"wp:attachment":[{"href":"https:\/\/www.hydrograv.com\/en\/wp-json\/wp\/v2\/media?parent=14806"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}