{"id":3177,"date":"2025-11-13T14:26:23","date_gmt":"2025-11-13T13:26:23","guid":{"rendered":"https:\/\/janisch-schulz.com\/acolman\/"},"modified":"2025-11-13T18:19:01","modified_gmt":"2025-11-13T17:19:01","slug":"acolman","status":"publish","type":"post","link":"https:\/\/janisch-schulz.com\/en\/acolman\/","title":{"rendered":"A Proven Concept: New Large-Scale Nature-Based WWTP Project in Mexico for 14,000 People"},"content":{"rendered":"<div  class='flex_column av-74esnr-5cf7bd65e938da5602e4c63006b2bbd8 av_one_fourth  avia-builder-el-0  el_before_av_three_fourth  avia-builder-el-first  first flex_column_div  '     ><\/div>\n<div  class='flex_column av-5cpmnb-4a4d7930c19fab142c06187486b667dc av_three_fourth  avia-builder-el-1  el_after_av_one_fourth  avia-builder-el-last  flex_column_div  '     ><section  class='av_textblock_section av-4uhrjb-8c14e5fe68b1ecdf9170b01f1ff882dd '   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/BlogPosting\" itemprop=\"blogPost\" ><div class='avia_textblock'  itemprop=\"text\" ><h1 dir=\"ltr\" data-pm-slice=\"1 1 &#091;&#093;\">A Proven Concept: New Large-Scale Nature-Based WWTP Project in Mexico for 14,000 People<\/h1>\n<p dir=\"ltr\">We continue our work in the field of nature-based wastewater treatment in Mexico. In the State of Mexico, a new treatment plant is being built for the residential development Los H\u00e9roes Acolman, designed for 14,000 population equivalents. The concept follows the same technological approach used in our projects in Ray\u00f3n and Cihuatl\u00e1n: robust primary treatment, natural sludge humification, and efficient purification through vertical-flow constructed wetlands, followed by a naturally designed polishing pond that offers significant ecological value.<\/p>\n<h2 dir=\"ltr\"><\/h2>\n<div id=\"attachments-carousel_s5ZR8wp8xIbaSUTqNV36\" class=\"carousel slide cmb-10\" data-mdb-interval=\"false\" data-mdb-ride=\"carousel\" data-unn-component=\"global.attachments-carousel\" data-unn-component-instance-id=\"s5ZR8wp8xIbaSUTqNV36\">\n<div class=\"carousel-inner\">\n<figure class=\"mb-0\">\n<div class=\"position-relative overflow-hidden ar-16-10\" data-unn-component=\"global.image\" data-unn-component-instance-id=\"0nRUqPQLMePinuQSRUiS\"><picture><source srcset=\"https:\/\/cdn.pressebox.de\/r\/d1d21108f0a91bec\/attachments\/14\/80\/68\/thumbnail_1480686_746x466.webp\" type=\"image\/webp\" \/><source srcset=\"https:\/\/cdn.pressebox.de\/r\/af865786bb0fe4ca\/attachments\/14\/80\/68\/thumbnail_1480686_746x466.jpg\" type=\"image\/jpeg\" \/><\/picture><\/div>\n<\/figure>\n<\/div>\n<\/div>\n<\/div><\/section><br \/>\n<div  class='av-post-metadata-container av-lwayue2x-c695518714a09cf0b0936b8b5d440b7f av-metadata-container-align-left  avia-builder-el-3  el_after_av_textblock  el_before_av_post_metadata  av-metadata-container-1'><div class='av-post-metadata-container-inner'><span class=\"av-post-metadata-content av-post-metadata-meta-content\"><span class=\"av-post-metadata-content av-post-metadata-author\"  itemprop=\"author\" ><span class=\"av-metadata-before av-metadata-before-author\">von<\/span><span class=\"av-post-metadata-author-link\" ><a href=\"https:\/\/janisch-schulz.com\/en\/author\/manu\/\"  rel=\"author\">Manuel Schmelzle<\/a><\/span><\/span><span class=\"av-post-metadata-content av-post-metadata-separator\">\/<\/span><span class=\"av-post-metadata-content av-post-metadata-published time\"><span class=\"av-post-metadata-published time-date\" >13. November 2025 14:26<\/span><\/span><\/span><\/div><\/div><br \/>\n<div  class='av-post-metadata-container av-lwaywp9s-06bd6d9277a229caecbe0ee624491bd5 av-metadata-container-align-left  avia-builder-el-4  el_after_av_post_metadata  el_before_av_image  av-metadata-container-2'><div class='av-post-metadata-container-inner'><span class=\"av-post-metadata-content av-post-metadata-meta-content\"><span class=\"av-post-metadata-content av-post-metadata-category\"><span class=\"av-post-metadata-category-link\" ><a href=\"https:\/\/janisch-schulz.com\/en\/constructed-wetlands\/\" >Constructed Wetlands<\/a><\/span>, <span class=\"av-post-metadata-category-link\" ><a href=\"https:\/\/janisch-schulz.com\/en\/domesticwastewater\/\" >Domestic Wastewater<\/a><\/span>, <span class=\"av-post-metadata-category-link\" ><a href=\"https:\/\/janisch-schulz.com\/en\/haeusliches-abwasser-en\/\" >H\u00e4usliches Abwasser<\/a><\/span>, <span class=\"av-post-metadata-category-link\" ><a href=\"https:\/\/janisch-schulz.com\/en\/naturebasedsolutions\/\" >Nature-based solutions<\/a><\/span>, <span class=\"av-post-metadata-category-link\" ><a href=\"https:\/\/janisch-schulz.com\/en\/infrastruktur-en\/\" >gr\u00fcn-blaue Infrastruktur<\/a><\/span><\/span><\/span><\/div><\/div><br \/>\n\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-m70k8hc9-ced6d6287b03aeb20ca9568bf8f55ed5\">\n.avia-image-container.av-m70k8hc9-ced6d6287b03aeb20ca9568bf8f55ed5 img.avia_image{\nbox-shadow:none;\n}\n.avia-image-container.av-m70k8hc9-ced6d6287b03aeb20ca9568bf8f55ed5 .av-image-caption-overlay-center{\ncolor:#ffffff;\n}\n<\/style>\n<div  class='avia-image-container av-m70k8hc9-ced6d6287b03aeb20ca9568bf8f55ed5 av-styling- avia-align-center  avia-builder-el-5  el_after_av_post_metadata  el_before_av_textblock '   itemprop=\"image\" itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/ImageObject\" ><div class=\"avia-image-container-inner\"><div class=\"avia-image-overlay-wrap\"><img decoding=\"async\" fetchpriority=\"high\" class='wp-image-3155 avia-img-lazy-loading-not-3155 avia_image ' src=\"https:\/\/janisch-schulz.com\/wp-content\/uploads\/2025\/11\/img8-1-1030x959.jpg\" alt='' title='img8'  height=\"959\" width=\"1030\"  itemprop=\"thumbnailUrl\" srcset=\"https:\/\/janisch-schulz.com\/wp-content\/uploads\/2025\/11\/img8-1-1030x959.jpg 1030w, https:\/\/janisch-schulz.com\/wp-content\/uploads\/2025\/11\/img8-1-300x279.jpg 300w, https:\/\/janisch-schulz.com\/wp-content\/uploads\/2025\/11\/img8-1-768x715.jpg 768w, https:\/\/janisch-schulz.com\/wp-content\/uploads\/2025\/11\/img8-1-705x657.jpg 705w, https:\/\/janisch-schulz.com\/wp-content\/uploads\/2025\/11\/img8-1.jpg 1310w\" sizes=\"(max-width: 1030px) 100vw, 1030px\" \/><\/div><\/div><\/div><br \/>\n<section  class='av_textblock_section av-lwayvmak-9166b8f2a21aab174aa6e8519e515ad5 '   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/BlogPosting\" itemprop=\"blogPost\" ><div class='avia_textblock'  itemprop=\"text\" ><div class=\"d-inline\" lang=\"en\">\n<p data-start=\"891\" data-end=\"943\"><strong>A sustainable and operationally reliable concept<\/strong><\/p>\n<p data-start=\"945\" data-end=\"1272\">The plant is designed for a daily inflow of 2,100 m\u00b3 of wastewater (24.3 L\/s) and complies with the local guideline NOM-001-SEMARNAT-2021. As with our other projects, we combine low-energy processes with simple, low-maintenance operation\u2014an essential factor for ensuring long-term operational reliability in the region.<\/p>\n<p data-start=\"1274\" data-end=\"1527\">The preliminary treatment includes an inlet channel with sand trap, a pumping station, a static fine screen, and two Imhoff tanks. The system is complemented by two clarification lagoons that hydraulically stabilize the flow feeding the planted filters.<\/p>\n<p data-start=\"1529\" data-end=\"1831\">For sludge management, two sludge humification beds are used. Sludge is removed from the Imhoff tanks by gravity at short intervals. In the humification beds, the sludge dewaters and mineralizes over several years\u2014a resource-efficient method that produces a humus-rich substrate suitable for reuse.<\/p>\n<p data-start=\"1838\" data-end=\"1891\"><strong>Constructed wetland with 14,000 m\u00b2 of filter area<\/strong><\/p>\n<p data-start=\"1893\" data-end=\"2278\">The core of the system is a vertical-flow constructed wetland with a total filtration area of 14,000 m\u00b2. The filter substrate consists of locally sourced tezontle, a porous volcanic rock well suited for use in constructed wetlands. Intermittent loading ensures proper aeration and a stable microbial environment, both essential for organic matter degradation and nitrification.<\/p>\n<p data-start=\"2285\" data-end=\"2325\"><strong>Biodiversity and ecological benefits<\/strong><\/p>\n<p data-start=\"2327\" data-end=\"2569\">After passing through the vertical filter, the treated water flows into a 3,200 m\u00b2 polishing pond, designed as a shallow-water ecosystem. This final treatment stage further improves water quality while creating a valuable aquatic habitat.<\/p>\n<p data-start=\"2571\" data-end=\"2868\">The planted beds and the subsequent wetland area provide habitat for numerous species\u2014an ecological benefit that is increasingly important in rapidly growing urban regions. The treated water can be used for irrigating urban green spaces or for agricultural purposes, supporting local water cycles.<\/p>\n<p data-start=\"2875\" data-end=\"2910\"><strong>Cooperation with local partners<\/strong><\/p>\n<p data-start=\"2912\" data-end=\"3238\">The project is being developed in collaboration with Grupo Sadasi and local authorities. It demonstrates how technical innovation, robust operation, and ecological functions can be integrated into a unified concept. With the Acolman plant, we further expand our series of large-scale constructed wetland systems in Mexico.<\/p>\n<\/div>\n<\/div><\/section><br \/>\n\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-mhxkwsey-c50c6e22699abe5a86f9c99e66ef64aa\">\n#top .hr.hr-invisible.av-mhxkwsey-c50c6e22699abe5a86f9c99e66ef64aa{\nheight:150px;\n}\n<\/style>\n<div  class='hr av-mhxkwsey-c50c6e22699abe5a86f9c99e66ef64aa hr-invisible  avia-builder-el-7  el_after_av_textblock  avia-builder-el-last '><span class='hr-inner '><span class=\"hr-inner-style\"><\/span><\/span><\/div><\/p><\/div>\n","protected":false},"excerpt":{"rendered":"<p>In Acolman (State of Mexico), a new nature-based wastewater treatment plant is under construction for the Los H\u00e9roes Acolman residential development. The system follows the proven model used in our projects in Ray\u00f3n, Mexicali and Cihuatl\u00e1n: robust primary treatment, natural sludge humification, and a vertical-flow constructed wetland, followed by a naturally designed polishing pond providing substantial ecological added value.<\/p>\n","protected":false},"author":3,"featured_media":3262,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_seopress_titles_title":"Neues PKA-Grossprojekt in Mexiko f\u00fcr 14.000 Personen - H\u00e9roes de Acolman","_seopress_titles_desc":"Janisch & Schulz pr\u00e4sentiert innovative L\u00f6sungen zur Wasserwiederverwendung mit Pflanzenkl\u00e4ranlagen (PKA)","_seopress_robots_index":"","_seopress_robots_follow":"","_seopress_robots_imageindex":"","_seopress_robots_snippet":"","_seopress_robots_primary_cat":"none","_seopress_robots_breadcrumbs":"","_seopress_robots_freeze_modified_date":"","_seopress_robots_custom_modified_date":"","_seopress_robots_canonical":"","_seopress_social_fb_title":"","_seopress_social_fb_desc":"","_seopress_social_fb_img":"","_seopress_social_fb_img_attachment_id":0,"_seopress_social_fb_img_width":0,"_seopress_social_fb_img_height":0,"_seopress_social_twitter_title":"","_seopress_social_twitter_desc":"","_seopress_social_twitter_img":"","_seopress_social_twitter_img_attachment_id":0,"_seopress_social_twitter_img_width":0,"_seopress_social_twitter_img_height":0,"_seopress_redirections_value":"","_seopress_redirections_enabled":"","_seopress_redirections_enabled_regex":"","_seopress_redirections_logged_status":"both","_seopress_redirections_param":"","_seopress_redirections_type":301,"_seopress_analysis_target_kw":"","iawp_total_views":30,"footnotes":""},"categories":[29,7,46,44,30],"tags":[],"class_list":["post-3177","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-constructed-wetlands","category-domesticwastewater","category-infrastruktur-en","category-haeusliches-abwasser-en","category-naturebasedsolutions"],"_links":{"self":[{"href":"https:\/\/janisch-schulz.com\/en\/wp-json\/wp\/v2\/posts\/3177","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/janisch-schulz.com\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/janisch-schulz.com\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/janisch-schulz.com\/en\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/janisch-schulz.com\/en\/wp-json\/wp\/v2\/comments?post=3177"}],"version-history":[{"count":7,"href":"https:\/\/janisch-schulz.com\/en\/wp-json\/wp\/v2\/posts\/3177\/revisions"}],"predecessor-version":[{"id":3198,"href":"https:\/\/janisch-schulz.com\/en\/wp-json\/wp\/v2\/posts\/3177\/revisions\/3198"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/janisch-schulz.com\/en\/wp-json\/wp\/v2\/media\/3262"}],"wp:attachment":[{"href":"https:\/\/janisch-schulz.com\/en\/wp-json\/wp\/v2\/media?parent=3177"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/janisch-schulz.com\/en\/wp-json\/wp\/v2\/categories?post=3177"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/janisch-schulz.com\/en\/wp-json\/wp\/v2\/tags?post=3177"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}