{"id":1239,"date":"2022-05-29T13:43:41","date_gmt":"2022-05-29T11:43:41","guid":{"rendered":"https:\/\/janisch-schulz.com\/?page_id=1239"},"modified":"2022-08-10T22:30:23","modified_gmt":"2022-08-10T20:30:23","slug":"cw-for-private-households","status":"publish","type":"page","link":"https:\/\/janisch-schulz.com\/en\/cw-for-private-households\/","title":{"rendered":"CW for private households"},"content":{"rendered":"<div id='layer_slider_1'  class='avia-layerslider main_color avia-shadow  avia-builder-el-0  el_before_av_one_fifth  avia-builder-el-first  container_wrap sidebar_right'  style='height: 1081px;'  ><\/div><div id='after_layer_slider_1'  class='main_color av_default_container_wrap container_wrap sidebar_right'  ><div class='container av-section-cont-open' ><div class='template-page content  av-content-small alpha units'><div class='post-entry post-entry-type-page post-entry-1239'><div class='entry-content-wrapper clearfix'>\n<div  class='flex_column av-n8o59-ccb7f483feb2ab2663c078b372576321 av_one_fifth  avia-builder-el-1  el_after_av_layerslider  el_before_av_three_fifth  avia-builder-el-first  first flex_column_div  '     ><\/div>\n<div  class='flex_column av-cvsj9-b4d11980ac115fa6e921e9bdebf6224c av_three_fifth  avia-builder-el-2  el_after_av_one_fifth  el_before_av_one_fifth  flex_column_div  '     ><section  class='av_textblock_section av-l3752kup-03ae44336c0793c7abb119f3436120d0 '   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/CreativeWork\" ><div class='avia_textblock'  itemprop=\"text\" ><h2>Constructed wetlands as a small sewage treatment plant<\/h2>\n<p>We built our first constructed wetland in 1993. The horizontal flow plant operates without electricity and is still in trouble-free operation today:<\/p>\n<\/div><\/section><\/div>\n<div  class='flex_column av-10m9q9-20a7613b1abfa61590226e1cd0116f09 av_one_fifth  avia-builder-el-4  el_after_av_three_fifth  el_before_av_one_fourth  flex_column_div  '     ><\/div>\n<div  class='flex_column av-av_one_fourth-7714eba142aeda1f8b5272a3c372b279 av_one_fourth  avia-builder-el-5  el_after_av_one_fifth  el_before_av_one_half  first flex_column_div  column-top-margin'     ><\/div>\n<div  class='flex_column av-av_one_half-f1c518e9ff58e869f80c8f093487abc9 av_one_half  avia-builder-el-6  el_after_av_one_fourth  el_before_av_one_fourth  flex_column_div  column-top-margin'     ><section  class='av_textblock_section av-l6o1t4fy-7e9fa27704901eb2e2554fdadaa9e538 '   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/CreativeWork\" ><div class='avia_textblock'  itemprop=\"text\" ><p align=\"center\"><i><b>Please come back later again for English subtitles.<\/b><\/i><\/p>\n<\/div><\/section><\/div><div  class='flex_column av-av_one_fourth-f1c518e9ff58e869f80c8f093487abc9 av_one_fourth  avia-builder-el-8  el_after_av_one_half  el_before_av_video  flex_column_div  column-top-margin'     ><\/div><\/p>\n<div  class='avia-video av-l6au4zak-d6036c01649891f1a61619f970ed2d7b avia-video-16-9 av-no-preview-image avia-video-load-always av-lazyload-immediate av-lazyload-video-embed'  itemprop=\"video\" itemtype=\"https:\/\/schema.org\/VideoObject\"  data-original_url='https:\/\/youtu.be\/1aKxTNmXbrc'><script type='text\/html' class='av-video-tmpl'><div class='avia-iframe-wrap'><iframe loading=\"lazy\" title=\"Private Pflanzenkl\u00e4ranlage Baujahr 1993\" width=\"1500\" height=\"844\" src=\"https:\/\/www.youtube.com\/embed\/1aKxTNmXbrc?feature=oembed&autoplay=0&loop=0&controls=1&mute=0\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen><\/iframe><\/div><\/script><div class='av-click-to-play-overlay'><div class=\"avia_playpause_icon\"><\/div><\/div><\/div>\n\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-l3eb2fii-2cda2c5973a1afc68b25c0f680a45d17\">\n#top .hr.hr-invisible.av-l3eb2fii-2cda2c5973a1afc68b25c0f680a45d17{\nheight:50px;\n}\n<\/style>\n<div  class='hr av-l3eb2fii-2cda2c5973a1afc68b25c0f680a45d17 hr-invisible  avia-builder-el-10  el_after_av_video  el_before_av_one_fifth '><span class='hr-inner '><span class=\"hr-inner-style\"><\/span><\/span><\/div>\n<div  class='flex_column av-7tlw5-008c727557aaae0f85002d2fa432afc3 av_one_fifth  avia-builder-el-11  el_after_av_hr  el_before_av_three_fifth  first flex_column_div  '     ><\/div>\n<div  class='flex_column av-93hip-38c41ed6891cf221fce80e57f638f5ca av_three_fifth  avia-builder-el-12  el_after_av_one_fifth  el_before_av_one_fifth  flex_column_div  '     ><section  class='av_textblock_section av-l6au4en2-bb3027ead350e8e38f7f48cab220265c '   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/CreativeWork\" ><div class='avia_textblock'  itemprop=\"text\" ><h2>The water law permit<\/h2>\n<p>For the treatment of domestic wastewater, constructed wetlands are legally classified as small wastewater treatment plants according to DIN EN 12566 up to a connection size of 53 inhabitants or 8,000 l of wastewater per day. For the construction of a small wastewater treatment plant, exemption from the municipal connection and use obligation is always required, as well as a water law permit for the discharge of treated wastewater into a receiving water body or into the subsoil (infiltration). The application documents for the approval procedure are prepared by us.<\/p>\n<p>The approval of a technical small wastewater treatment plant is always based on a general building inspection approval. Near-natural wastewater treatment plants are usually individually planned plants that are approved on the basis of the current state of the art. For our industry, this is defined in the DWA worksheet A 262 &#8220;Principles for the design, construction and operation of wastewater treatment plants with planted and unplanted filters for the treatment of domestic and municipal wastewater&#8221; from November 2017.<\/p>\n<p>A brief critical outline of this set of rules can be found here: Every industry has its own set of rules!<\/p>\n<\/div><\/section><\/div><div  class='flex_column av-vhdv5-1b9a309ebd6dcd347e234a8931d9d231 av_one_fifth  avia-builder-el-14  el_after_av_three_fifth  el_before_av_hr  flex_column_div  '     ><\/div><\/p>\n\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-av_hr-4158a5a9816bcf27ad8942bd0d1bbf6d\">\n#top .hr.hr-invisible.av-av_hr-4158a5a9816bcf27ad8942bd0d1bbf6d{\nheight:50px;\n}\n<\/style>\n<div  class='hr av-av_hr-4158a5a9816bcf27ad8942bd0d1bbf6d hr-invisible  avia-builder-el-15  el_after_av_one_fifth  el_before_av_one_fifth '><span class='hr-inner '><span class=\"hr-inner-style\"><\/span><\/span><\/div>\n<div  class='flex_column av-nceel-a53f336bbcdd448bdb352125c11c9a2d av_one_fifth  avia-builder-el-16  el_after_av_hr  el_before_av_three_fifth  first flex_column_div  '     ><\/div>\n<div  class='flex_column av-6dxa11-56abcac3f8c52ff9fff0202fe8ff0bb3 av_three_fifth  avia-builder-el-17  el_after_av_one_fifth  el_before_av_one_fifth  flex_column_div  '     ><section  class='av_textblock_section av-l3re54cv-6c3623b6f9d8dc7b446f01998ffee207 '   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/CreativeWork\" ><div class='avia_textblock'  itemprop=\"text\" ><h2>Approval by the building authorities<\/h2>\n<p>Our constructed wetland was installed in October 2009 at the test facility of the Materials Research and Testing Institute (MFPA) of the Technical University of Weimar. It has successfully gone through the process of type approval there. The German Institute for Construction Technology has issued the following approval numbers:<\/p>\n<p>\u2022 Drainage class N Z-55.4.-309<br \/>\n\u2022 Drainage class C Z-55.4.-310<br \/>\n\u2022 Drainage class N+H Z-55.4.-311<\/p>\n<p>Since these approvals are still based on the old rules and regulations, which presuppose an oversized pre-treatment volume, we generally plan our plants on the basis of the current DWA-A 262 and guarantee the purification targets specified in the respective effluent classes.<\/p>\n<p>You get: 5 years warranty on the required discharge values!<\/p>\n<p>Since the range of application of constructed wetlands goes far beyond the standard framework of small wastewater treatment plants, individual dimensioning approaches are often necessary in our daily practice. After several years of operation, the soil filter forms a complex ecosystem of root space, microorganisms and plant cover. In every climate zone, even in every region with different site conditions, the system behaves somewhat differently. When planning and designing, we therefore rely first and foremost on our many years of experience, and only in the second step do we look up the relevant regulations.<\/p>\n<\/div><\/section><\/div><div  class='flex_column av-67cz31-29bc5652c84469547b0a285e3ab24a1d av_one_fifth  avia-builder-el-19  el_after_av_three_fifth  el_before_av_one_half  flex_column_div  '     ><\/div><\/p>\n<div  class='flex_column av-v1ae1-50198d45201abcd3de89f42f54479354 av_one_half  avia-builder-el-20  el_after_av_one_fifth  el_before_av_one_half  first flex_column_div  column-top-margin'     ><p>\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-rse21-0798bde159e4b1cd198eec7200f3a4b5\">\n.avia-image-container.av-rse21-0798bde159e4b1cd198eec7200f3a4b5 img.avia_image{\nbox-shadow:none;\n}\n.avia-image-container.av-rse21-0798bde159e4b1cd198eec7200f3a4b5 .av-image-caption-overlay-center{\ncolor:#ffffff;\n}\n<\/style>\n<div  class='avia-image-container av-rse21-0798bde159e4b1cd198eec7200f3a4b5 av-styling- avia-align-right  avia-builder-el-21  el_before_av_textblock  avia-builder-el-first '   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-651 avia-img-lazy-loading-not-651 avia_image ' src=\"https:\/\/janisch-schulz.com\/wp-content\/uploads\/2022\/05\/pflanzenklaeranlagen-sind-begehbar.jpg\" alt='' title='pflanzenklaeranlagen-sind-begehbar'  height=\"300\" width=\"400\"  itemprop=\"thumbnailUrl\" srcset=\"https:\/\/janisch-schulz.com\/wp-content\/uploads\/2022\/05\/pflanzenklaeranlagen-sind-begehbar.jpg 400w, https:\/\/janisch-schulz.com\/wp-content\/uploads\/2022\/05\/pflanzenklaeranlagen-sind-begehbar-300x225.jpg 300w\" sizes=\"(max-width: 400px) 100vw, 400px\" \/><\/div><\/div><\/div><br \/>\n<section  class='av_textblock_section av-l3753of4-607282cad5d918fcedd0dffcbe51870c '   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/CreativeWork\" ><div class='avia_textblock'  itemprop=\"text\" ><p style=\"text-align: right;\"><em>Constructed wetlands are walkable. No open water surfaces are formed. Contact with wastewater is excluded.<\/em><\/p>\n<\/div><\/section><\/p><\/div><div  class='flex_column av-kt3rd-8c726d164c83268ca7be4d0f432c6039 av_one_half  avia-builder-el-23  el_after_av_one_half  el_before_av_hr  flex_column_div  column-top-margin'     ><p>\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-1jxa9-689f8cbcb30fef9fa16a3e03c5dcf4c9\">\n.avia-image-container.av-1jxa9-689f8cbcb30fef9fa16a3e03c5dcf4c9 img.avia_image{\nbox-shadow:none;\n}\n.avia-image-container.av-1jxa9-689f8cbcb30fef9fa16a3e03c5dcf4c9 .av-image-caption-overlay-center{\ncolor:#ffffff;\n}\n<\/style>\n<div  class='avia-image-container av-1jxa9-689f8cbcb30fef9fa16a3e03c5dcf4c9 av-styling- avia-align-left  avia-builder-el-24  el_before_av_textblock  avia-builder-el-first '   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-647 avia-img-lazy-loading-not-647 avia_image ' src=\"https:\/\/janisch-schulz.com\/wp-content\/uploads\/2022\/05\/pflanzenklaeranlage-im-winter.jpg\" alt='' title='pflanzenklaeranlage-im-winter'  height=\"300\" width=\"400\"  itemprop=\"thumbnailUrl\" srcset=\"https:\/\/janisch-schulz.com\/wp-content\/uploads\/2022\/05\/pflanzenklaeranlage-im-winter.jpg 400w, https:\/\/janisch-schulz.com\/wp-content\/uploads\/2022\/05\/pflanzenklaeranlage-im-winter-300x225.jpg 300w\" sizes=\"(max-width: 400px) 100vw, 400px\" \/><\/div><\/div><\/div><br \/>\n<section  class='av_textblock_section av-l3754dwo-31c5a131a503a284fc45609c153bde6e '   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/CreativeWork\" ><div class='avia_textblock'  itemprop=\"text\" ><p><em>The planted soil filter cleans the wastewater even in deep winter, although the reed has died on the surface.<\/em><\/p>\n<\/div><\/section><\/p><\/div>\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-8q8o1-7e88a2fc11e6e2485ec904e19d76e520\">\n#top .hr.hr-invisible.av-8q8o1-7e88a2fc11e6e2485ec904e19d76e520{\nheight:50px;\n}\n<\/style>\n<div  class='hr av-8q8o1-7e88a2fc11e6e2485ec904e19d76e520 hr-invisible  avia-builder-el-26  el_after_av_one_half  el_before_av_one_half '><span class='hr-inner '><span class=\"hr-inner-style\"><\/span><\/span><\/div><\/p>\n<div  class='flex_column av-2wm23l-84cf0237ede58098baa04b1a0db64c1c av_one_half  avia-builder-el-27  el_after_av_hr  el_before_av_one_half  first flex_column_div  '     ><p>\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-2q3pdd-1c7661ea8372512d6036288fe52f50ae\">\n.avia-image-container.av-2q3pdd-1c7661ea8372512d6036288fe52f50ae img.avia_image{\nbox-shadow:none;\n}\n.avia-image-container.av-2q3pdd-1c7661ea8372512d6036288fe52f50ae .av-image-caption-overlay-center{\ncolor:#ffffff;\n}\n<\/style>\n<div  class='avia-image-container av-2q3pdd-1c7661ea8372512d6036288fe52f50ae av-styling- avia-align-right  avia-builder-el-28  el_before_av_textblock  avia-builder-el-first '   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-653 avia-img-lazy-loading-not-653 avia_image ' src=\"https:\/\/janisch-schulz.com\/wp-content\/uploads\/2022\/05\/schilfklaeranlage-direkt-am-haus.jpg\" alt='' title='schilfklaeranlage-direkt-am-haus'  height=\"300\" width=\"400\"  itemprop=\"thumbnailUrl\" srcset=\"https:\/\/janisch-schulz.com\/wp-content\/uploads\/2022\/05\/schilfklaeranlage-direkt-am-haus.jpg 400w, https:\/\/janisch-schulz.com\/wp-content\/uploads\/2022\/05\/schilfklaeranlage-direkt-am-haus-300x225.jpg 300w\" sizes=\"(max-width: 400px) 100vw, 400px\" \/><\/div><\/div><\/div><br \/>\n<section  class='av_textblock_section av-l3757y8q-bb8657a9ca7e5e0bf01728d94e868549 '   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/CreativeWork\" ><div class='avia_textblock'  itemprop=\"text\" ><p style=\"text-align: right;\"><em>A reed bed treatment plant can also be built close to the residential house. There is no odor nuisance.<\/em><\/p>\n<\/div><\/section><\/p><\/div><div  class='flex_column av-2i8jp5-6e401b162dc7bb863a5ae26137e38633 av_one_half  avia-builder-el-30  el_after_av_one_half  el_before_av_hr  flex_column_div  '     ><p>\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-2frqxt-2cf5f53b5f57b41c20819136914d5c74\">\n.avia-image-container.av-2frqxt-2cf5f53b5f57b41c20819136914d5c74 img.avia_image{\nbox-shadow:none;\n}\n.avia-image-container.av-2frqxt-2cf5f53b5f57b41c20819136914d5c74 .av-image-caption-overlay-center{\ncolor:#ffffff;\n}\n<\/style>\n<div  class='avia-image-container av-2frqxt-2cf5f53b5f57b41c20819136914d5c74 av-styling- avia-align-left  avia-builder-el-31  el_before_av_textblock  avia-builder-el-first '   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-649 avia-img-lazy-loading-not-649 avia_image ' src=\"https:\/\/janisch-schulz.com\/wp-content\/uploads\/2022\/05\/pflanzenklaeranlage-in-betrieb-seit-1993.jpg\" alt='' title='pflanzenklaeranlage-in-betrieb-seit-1993'  height=\"300\" width=\"400\"  itemprop=\"thumbnailUrl\" srcset=\"https:\/\/janisch-schulz.com\/wp-content\/uploads\/2022\/05\/pflanzenklaeranlage-in-betrieb-seit-1993.jpg 400w, https:\/\/janisch-schulz.com\/wp-content\/uploads\/2022\/05\/pflanzenklaeranlage-in-betrieb-seit-1993-300x225.jpg 300w\" sizes=\"(max-width: 400px) 100vw, 400px\" \/><\/div><\/div><\/div><br \/>\n<section  class='av_textblock_section av-l3758869-05e6890f6d7f264c9ddb3b1a2adff4a6 '   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/CreativeWork\" ><div class='avia_textblock'  itemprop=\"text\" ><p><em>Powerless and trouble-free. The Bender family&#8217;s constructed wetland has been in operation in Gambach, Hesse, since 1993.<\/em><\/p>\n<\/div><\/section><\/p><\/div>\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-l3eb3jmz-6994a040cfccb03ecdecf8e0b3fc51f3\">\n#top .hr.hr-invisible.av-l3eb3jmz-6994a040cfccb03ecdecf8e0b3fc51f3{\nheight:75px;\n}\n<\/style>\n<div  class='hr av-l3eb3jmz-6994a040cfccb03ecdecf8e0b3fc51f3 hr-invisible  avia-builder-el-33  el_after_av_one_half  el_before_av_one_fifth '><span class='hr-inner '><span class=\"hr-inner-style\"><\/span><\/span><\/div><\/p>\n<div  class='flex_column av-621nql-e8cc7717f469c9a6a146cef472e4b375 av_one_fifth  avia-builder-el-34  el_after_av_hr  el_before_av_three_fifth  first flex_column_div  '     ><\/div>\n<div  class='flex_column av-29z8rl-33845d7035fbb6583d51d0ab27bacd91 av_three_fifth  avia-builder-el-35  el_after_av_one_fifth  el_before_av_one_fifth  flex_column_div  '     ><section  id=\"regelwerk\"  class='av_textblock_section av-l37595he-576652a8f26459d9bc6ead35df284f86 '   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/CreativeWork\" ><div class='avia_textblock'  itemprop=\"text\" ><h2>Each industry has its own set of rules!<\/h2>\n<\/div><\/section><br \/>\n<section  class='av_textblock_section av-l375aggo-5a4cc41fe0ab4c27e87194e5ce4a4b12 '   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/CreativeWork\" ><div class='avia_textblock'  itemprop=\"text\" ><p>Rules and regulations define the state of the art and every planner needs good arguments should he violate these rules, because if it comes to a dispute in court, every expert will nail you on the basis of the rules and regulations.<\/p>\n<p>Therefore, even in the case of excessive specifications, in most cases planning is done as prescribed by the current regulations. The following is an example from our field: Worksheet DWA-A 262 regulates the construction of constructed wetlands. It has now been published in its third version and shows significant differences in all versions with regard to the required pre-treatment volumes.<\/p>\n<\/div><\/section><\/p><\/div><div  class='flex_column av-5vps19-e12475e14bff295fc850bb67e66fd7b5 av_one_fifth  avia-builder-el-38  el_after_av_three_fifth  el_before_av_table  flex_column_div  '     ><\/div><\/p>\n<div class='avia-data-table-wrap av-5ncmzh-7fc0bb27a2d4c1c2c0d56b9ce5973888 avia_responsive_table avia-table-1'><table  class='avia-table avia-data-table avia_pricing_default  avia-builder-el-39  el_after_av_one_fifth  el_before_av_one_fifth '  itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/Table\" ><tbody><tr class=''><td class=''>plant size<\/td><td class=''>4 PE<\/td><td class=''>10 PE<\/td><td class=''>20 PE<\/td><td class=''>50 PE<\/td><\/tr><tr class=''><td class=''><\/td><td class=''><\/td><td class=''><\/td><td class=''><\/td><td class=''><\/td><\/tr><tr class=''><td class=''>ATV-A 262 Edition July 1998<\/td><td class=''>3,000 liters<\/td><td class=''>6,000 liters<\/td><td class=''>9,000 liters<\/td><td class=''>26,000 liters<\/td><\/tr><tr class=''><td class=''>DWA-A 262 Edition March 2006<\/td><td class=''>6,000 liters<\/td><td class=''>12,000 liters<\/td><td class=''>16,500 liters<\/td><td class=''>31,500 liters<\/td><\/tr><tr class=''><td class=''>DWA-A 262 Edition Nov. 2017<\/td><td class=''>3,000 liters<\/td><td class=''>3,000 liters<\/td><td class=''>6,000 liters<\/td><td class=''>15,000 liters<\/td><\/tr><\/tbody><\/table><\/div>\n<div  class='flex_column av-mvqv9-40cad34548f2e5f01fcaaaec7d7fb6c8 av_one_fifth  avia-builder-el-40  el_after_av_table  el_before_av_three_fifth  first flex_column_div  '     ><\/div>\n<div  class='flex_column av-g6shh-65f54739445e6cd041261ab3e096c388 av_three_fifth  avia-builder-el-41  el_after_av_one_fifth  el_before_av_one_fifth  flex_column_div  '     ><section  class='av_textblock_section av-l3ref9bb-3b0be83873aaa3aea361875dce8eddbe '   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/CreativeWork\" ><div class='avia_textblock'  itemprop=\"text\" ><p>The realization that a septic tank with a volume of 3,000 liters is sufficient for a small plant was already with us in 1993, when there were no rulebooks for constructed wetlands. With the first worksheet in 1998, the specified volumes were more or less those with which we had also had good experience. In 2006, another edition was published with required pre-treatment volumes that were in some cases twice as large as originally. This was a huge deal for the pit manufacturers, and constructed wetlands became much more expensive as a result.<\/p>\n<p>The technical competition was pleased because they could continue to build with small volumes. Not all approval authorities went along with the nonsense; we were able to convince many in Hesse, Baden-W\u00fcrttemberg and Rhineland-Palatinate to stick with the proven smaller volumes. In 2017, the regulations were revised &#8211; now similar small volumes as in 1998 can be used again.<\/p>\n<\/div><\/section><\/div><div  class='flex_column av-6ue59-6b5a5414d1706dee14d621d913505e99 av_one_fifth  avia-builder-el-43  el_after_av_three_fifth  el_before_av_hr  flex_column_div  '     ><\/div><\/p>\n\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-l3eb3vjt-bb160e5a0e86516bf5e42eeb25604a97\">\n#top .hr.hr-invisible.av-l3eb3vjt-bb160e5a0e86516bf5e42eeb25604a97{\nheight:50px;\n}\n<\/style>\n<div  class='hr av-l3eb3vjt-bb160e5a0e86516bf5e42eeb25604a97 hr-invisible  avia-builder-el-44  el_after_av_one_fifth  el_before_av_one_fifth '><span class='hr-inner '><span class=\"hr-inner-style\"><\/span><\/span><\/div>\n<div  class='flex_column av-2b35tl-89145045923946e7fff72d6b7c6c195d av_one_fifth  avia-builder-el-45  el_after_av_hr  el_before_av_three_fifth  first flex_column_div  '     ><\/div>\n<div  class='flex_column av-22bokh-7414a1e74d918409ba0e88672af234c0 av_three_fifth  avia-builder-el-46  el_after_av_one_fifth  el_before_av_one_fifth  flex_column_div  '     ><section  class='av_textblock_section av-l3r0ucwu-b68f34ffef6bcd855297c17a7dd9909b '   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/CreativeWork\" ><div class='avia_textblock'  itemprop=\"text\" ><h2>Maintenance of constructed wetlands<\/h2>\n<\/div><\/section><br \/>\n<section  class='av_textblock_section av-l3r0uqdc-ec39903dcfa04ef64011e84a3fdc15d0 '   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/CreativeWork\" ><div class='avia_textblock'  itemprop=\"text\" ><p>Owners of a small wastewater treatment plant do not pay wastewater tax, but they are obliged to prove the function of the plant regularly to the water authority. We are certified for this maintenance work and can offer you a maintenance contract including the wastewater analyses.<\/p>\n<p>After more than 25 years of operating experience with constructed wetlands, we claim: There is no comparable system that fulfills its task so reliably and enduringly with such low operating and maintenance costs.<\/p>\n<p>In order to maintain the function of the plant in the long term, the plant should be regularly checked and maintained by the operator. The maintenance is limited to the removal of foreign growth and the dead reed straw. In addition to the self-inspection, we recommend a one-time maintenance by us every year. During the maintenance, we check the function of the plant feed, we determine the level of sludge in the primary clarifier and we take a wastewater sample. We summarize the results and recommendations in a maintenance report.<\/p>\n<p>A single maintenance per calendar year is sufficient for our systems. In some federal states and counties, however, small wastewater treatment plants must be serviced twice a year. This regulation is justified for technical plants, because if the technology fails there, the wastewater runs untreated into the environment.<\/p>\n<p>According to the motto every branch has its own certificate, we were also obliged to be certified for the maintenance of small sewage treatment plants. Now we send our employees to regular trainings and as a certified maintenance company we can offer you the maintenance of natural or technical small sewage treatment plants.<\/p>\n<p>We will be happy to provide you with a non-binding offer for the maintenance of your small wastewater treatment plant!<\/p>\n<\/div><\/section><\/p><\/div><div  class='flex_column av-1x90y9-40842d5cf5ed333eba78761af426405e av_one_fifth  avia-builder-el-49  el_after_av_three_fifth  el_before_av_hr  flex_column_div  '     ><\/div><\/p>\n\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-bh939-2059514bb27c776579c53123c17c5f89\">\n#top .hr.hr-invisible.av-bh939-2059514bb27c776579c53123c17c5f89{\nheight:75px;\n}\n<\/style>\n<div  class='hr av-bh939-2059514bb27c776579c53123c17c5f89 hr-invisible  avia-builder-el-50  el_after_av_one_fifth  el_before_av_one_half '><span class='hr-inner '><span class=\"hr-inner-style\"><\/span><\/span><\/div>\n<div  class='flex_column av-19p3xl-c6a637bca647fc899b3a002e46ccbef5 av_one_half  avia-builder-el-51  el_after_av_hr  el_before_av_one_half  first flex_column_div  '     ><p>\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-14duwh-87ee46677234c14942950598d17eb8cd\">\n.avia-image-container.av-14duwh-87ee46677234c14942950598d17eb8cd img.avia_image{\nbox-shadow:none;\n}\n.avia-image-container.av-14duwh-87ee46677234c14942950598d17eb8cd .av-image-caption-overlay-center{\ncolor:#ffffff;\n}\n<\/style>\n<div  class='avia-image-container av-14duwh-87ee46677234c14942950598d17eb8cd av-styling- avia-align-right  avia-builder-el-52  el_before_av_textblock  avia-builder-el-first '   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-1243 avia-img-lazy-loading-not-1243 avia_image ' src=\"https:\/\/janisch-schulz.com\/wp-content\/uploads\/2022\/05\/schilfklaeranlage-gepflegt.jpg\" alt='' title='schilfklaeranlage-gepflegt'  height=\"300\" width=\"400\"  itemprop=\"thumbnailUrl\" srcset=\"https:\/\/janisch-schulz.com\/wp-content\/uploads\/2022\/05\/schilfklaeranlage-gepflegt.jpg 400w, https:\/\/janisch-schulz.com\/wp-content\/uploads\/2022\/05\/schilfklaeranlage-gepflegt-300x225.jpg 300w\" sizes=\"(max-width: 400px) 100vw, 400px\" \/><\/div><\/div><\/div><br \/>\n<section  class='av_textblock_section av-l375clsx-c8e139150422dfcca967493bab1a1165 '   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/CreativeWork\" ><div class='avia_textblock'  itemprop=\"text\" ><p style=\"text-align: right;\"><em>Maintained: In time for spring, remove dead plant material and collect emerging woody seedlings.<\/em><\/p>\n<\/div><\/section><\/p><\/div><div  class='flex_column av-617xt-17e942e6c7f9cac6186d43f615c29a86 av_one_half  avia-builder-el-54  el_after_av_one_half  el_before_av_hr  flex_column_div  '     ><p>\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-1ls72h-0ef6ee09ae10aed3737e1f2fa85ee923\">\n.avia-image-container.av-1ls72h-0ef6ee09ae10aed3737e1f2fa85ee923 img.avia_image{\nbox-shadow:none;\n}\n.avia-image-container.av-1ls72h-0ef6ee09ae10aed3737e1f2fa85ee923 .av-image-caption-overlay-center{\ncolor:#ffffff;\n}\n<\/style>\n<div  class='avia-image-container av-1ls72h-0ef6ee09ae10aed3737e1f2fa85ee923 av-styling- avia-align-left  avia-builder-el-55  el_before_av_textblock  avia-builder-el-first '   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-1244 avia-img-lazy-loading-not-1244 avia_image ' src=\"https:\/\/janisch-schulz.com\/wp-content\/uploads\/2022\/05\/schilfklaeranlage-ungepflegt.jpg\" alt='' title='schilfklaeranlage-ungepflegt'  height=\"300\" width=\"400\"  itemprop=\"thumbnailUrl\" srcset=\"https:\/\/janisch-schulz.com\/wp-content\/uploads\/2022\/05\/schilfklaeranlage-ungepflegt.jpg 400w, https:\/\/janisch-schulz.com\/wp-content\/uploads\/2022\/05\/schilfklaeranlage-ungepflegt-300x225.jpg 300w\" sizes=\"(max-width: 400px) 100vw, 400px\" \/><\/div><\/div><\/div><br \/>\n<section  class='av_textblock_section av-1hf9dl-dc6b8bb164ded8ee387b0db33a104ed7 '   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/CreativeWork\" ><div class='avia_textblock'  itemprop=\"text\" ><p><em>Unkempt: Once the elder has taken root, it can only be pulled out with heavy equipment.<\/em><\/p>\n<\/div><\/section><\/p><\/div>\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-l3eb5d47-397823de400eed086d1c896c2d045a47\">\n#top .hr.hr-invisible.av-l3eb5d47-397823de400eed086d1c896c2d045a47{\nheight:50px;\n}\n<\/style>\n<div  class='hr av-l3eb5d47-397823de400eed086d1c896c2d045a47 hr-invisible  avia-builder-el-57  el_after_av_one_half  el_before_av_one_full '><span class='hr-inner '><span class=\"hr-inner-style\"><\/span><\/span><\/div><\/p>\n<div  class='flex_column av-v0r9-c811709535855cf477420b846c3675c0 av_one_full  avia-builder-el-58  el_after_av_hr  el_before_av_hr  voll-breit first flex_column_div  '     ><style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-l36ydlpw-76d90c98e184e9f4d05d2ec1a7709d8f\">\n.avia-image-container.av-l36ydlpw-76d90c98e184e9f4d05d2ec1a7709d8f img.avia_image{\nbox-shadow:none;\n}\n.avia-image-container.av-l36ydlpw-76d90c98e184e9f4d05d2ec1a7709d8f .av-image-caption-overlay-center{\ncolor:#ffffff;\n}\n<\/style>\n<div  class='avia-image-container av-l36ydlpw-76d90c98e184e9f4d05d2ec1a7709d8f av-styling- avia-align-center  avia-builder-el-59  avia-builder-el-no-sibling '   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-198 avia-img-lazy-loading-not-198 avia_image ' src=\"https:\/\/janisch-schulz.com\/wp-content\/uploads\/2022\/05\/100-Wellenlinien-titelbild.png\" alt='' title='100-Wellenlinien-titelbild'  height=\"196\" width=\"2000\"  itemprop=\"thumbnailUrl\" srcset=\"https:\/\/janisch-schulz.com\/wp-content\/uploads\/2022\/05\/100-Wellenlinien-titelbild.png 2000w, https:\/\/janisch-schulz.com\/wp-content\/uploads\/2022\/05\/100-Wellenlinien-titelbild-300x29.png 300w, https:\/\/janisch-schulz.com\/wp-content\/uploads\/2022\/05\/100-Wellenlinien-titelbild-1030x101.png 1030w, https:\/\/janisch-schulz.com\/wp-content\/uploads\/2022\/05\/100-Wellenlinien-titelbild-768x75.png 768w, https:\/\/janisch-schulz.com\/wp-content\/uploads\/2022\/05\/100-Wellenlinien-titelbild-1536x151.png 1536w, https:\/\/janisch-schulz.com\/wp-content\/uploads\/2022\/05\/100-Wellenlinien-titelbild-1500x147.png 1500w, https:\/\/janisch-schulz.com\/wp-content\/uploads\/2022\/05\/100-Wellenlinien-titelbild-705x69.png 705w\" sizes=\"(max-width: 2000px) 100vw, 2000px\" \/><\/div><\/div><\/div><\/div>\n\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-l2dc6z24-6d1123003b7de8446163f6639fe9ec1c\">\n#top .hr.hr-invisible.av-l2dc6z24-6d1123003b7de8446163f6639fe9ec1c{\nheight:70px;\n}\n<\/style>\n<div  id=\"whitebanner\"  class='hr av-l2dc6z24-6d1123003b7de8446163f6639fe9ec1c hr-invisible  avia-builder-el-60  el_after_av_one_full  avia-builder-el-last '><span class='hr-inner '><span class=\"hr-inner-style\"><\/span><\/span><\/div>\n","protected":false},"excerpt":{"rendered":"","protected":false},"author":2,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_seopress_titles_title":"","_seopress_titles_desc":"","_seopress_robots_index":"","_seopress_robots_follow":"","_seopress_robots_imageindex":"","_seopress_robots_snippet":"","_seopress_robots_primary_cat":"","_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":95,"footnotes":""},"class_list":["post-1239","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/janisch-schulz.com\/en\/wp-json\/wp\/v2\/pages\/1239","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/janisch-schulz.com\/en\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/janisch-schulz.com\/en\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/janisch-schulz.com\/en\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/janisch-schulz.com\/en\/wp-json\/wp\/v2\/comments?post=1239"}],"version-history":[{"count":3,"href":"https:\/\/janisch-schulz.com\/en\/wp-json\/wp\/v2\/pages\/1239\/revisions"}],"predecessor-version":[{"id":1253,"href":"https:\/\/janisch-schulz.com\/en\/wp-json\/wp\/v2\/pages\/1239\/revisions\/1253"}],"wp:attachment":[{"href":"https:\/\/janisch-schulz.com\/en\/wp-json\/wp\/v2\/media?parent=1239"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}