{"id":1636,"date":"2015-06-04T17:36:49","date_gmt":"2015-06-04T17:36:49","guid":{"rendered":"http:\/\/agruamerica.com\/?p=1262"},"modified":"2023-02-23T08:07:23","modified_gmt":"2023-02-23T14:07:23","slug":"what-is-leachate","status":"publish","type":"post","link":"https:\/\/agruamerica.com\/es\/what-is-leachate\/","title":{"rendered":"Landfill Leachate Sources and Treatment Options"},"content":{"rendered":"<p class=\"p1\">What is leachate? In a lab, it is any liquid that extracts solids as it passes through matter. In a landfill, it is the water that enters the facility in a number of ways, passes through waste material on contact, contains a wide range of constituents, and must be addressed with a proper operations plan. Leachate treatment options and mitigation are one of the greatest costs for landfill operators today.<\/p>\n<p class=\"p1\"><!--more--><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"size-medium wp-image-1263\" style=\"float: left; padding: 20px;\" src=\"http:\/\/agruamerica.com\/wp-content\/uploads\/2015\/06\/Leachate_Pond-300x225.jpg\" alt=\"what is leachate\" width=\"300\" height=\"225\" \/><\/p>\n<p class=\"p2\"><span class=\"s1\">Rain falling on the landfill itself is the most common source of leachate, but water can also enter a landfill as runoff from locations nearby. Some water is also produced by waste decomposition itself, thus adding more leachate to the equation. No matter how it enters the facility, water in a landfill is exposed to contaminants including heavy metals, herbicides and pesticides. The treatment of leachate is managed by various options.<\/span><\/p>\n<p class=\"p2\"><span class=\"s1\">\u201cSolid waste landfills must be designed to protect the environment from contaminants which may be present in the solid waste stream,\u201d says the Environmental Protection Agency. \u201cThe landfill siting plan\u2014which prevents the siting of landfills in environmentally-sensitive areas\u2014as well as on-site environmental monitoring systems\u2014which monitor for any sign of groundwater contamination and for landfill gas\u2014provide additional safeguards.\u201d Federal standards address:<\/span><\/p>\n<ul>\n<li class=\"p2\"><span class=\"s1\">Location, ensuring that landfills are built away from faults, wetlands and flood plains.<\/span><\/li>\n<li class=\"p2\"><span class=\"s1\">Composite and\/or primary-secondary lining systems along the bottom and sides of the landfill to protect groundwater and the underlying soil.<\/span><\/li>\n<li class=\"p2\"><span class=\"s1\">Leachate collection, detection and removal systems that sit on top or in between layers of the lining system.<\/span><\/li>\n<li class=\"p2\"><span class=\"s1\">Operating practices that help reduce odors as well as control litter, insects, and rodents.<\/span><\/li>\n<li class=\"p2\"><span class=\"s1\">Groundwater monitoring to determine whether waste materials have escaped from the landfill.<\/span><\/li>\n<li class=\"p2\"><span class=\"s1\">Closure and post-closure care requirements that include prescriptive closing of landfills and caring for the closed facilities.<\/span><\/li>\n<\/ul>\n<h2 class=\"p2\">Leachate and Treatment Options<\/h2>\n<p class=\"p2\"><span class=\"s1\">In its recent special report on landfills, Waste360 said, \u201cSuch a complex solution\u2014fluid containing compounds both inorganic and organic, from arsenic to xylene\u2014prompts the need for management solutions that protect the community, the environment and the budgets that finance waste disposal operations.\u201d It outlined seven ways to address leachate, including:<\/span><\/p>\n<ul>\n<li class=\"p2\"><span class=\"s1\"><b>Diversion<\/b> \u2013 keeping harmful materials from ever entering the landfill.<\/span><\/li>\n<li class=\"p2\"><span class=\"s1\"><b>Pretreatment<\/b> \u2013 surface ponds, biological reactors, physical\/chemical plants, constructed wetlands and reverse osmosis.<\/span><\/li>\n<li class=\"p2\"><span class=\"s1\"><b>Land application<\/b> \u2013 grasses and trees can absorb certain contaminants.<\/span><\/li>\n<li class=\"p2\"><span class=\"s1\"><b>Recirculation <\/b>\u2013 sent<b> <\/b>back into the landfill, the water helps speed the breakdown of organic materials.<\/span><\/li>\n<li class=\"p2\"><span class=\"s1\"><b>Evaporation <\/b>\u2013 leachate is sprayed onto the working face, the surface of a storage pond or mechanically evaporated on-site.<\/span><\/li>\n<li class=\"p2\"><span class=\"s1\"><b>Wetlands<\/b> \u2013 natural processes speed treatment in lined, constructed wetlands.<\/span><\/li>\n<li class=\"p2\"><span class=\"s1\"><b>Hauling<\/b> \u2013 a costly last resort.<\/span><\/li>\n<\/ul>\n<p class=\"p2\"><span class=\"s1\">The most effective way to reduce leachate may be to keep water out of the facility in the first place with a close-as-you-go approach. An impermeable closure system using AGRU America\u2019s geomembrane products that include an <a href=\"https:\/\/agruamerica.com\/products\/integrated-drainage-system\/\">Integrated Drainage System (IDS)<\/a> meet all requirements for closure and have been used in various closure applications across the world.<span class=\"Apple-converted-space\">\u00a0 <\/span>The IDS system produces unmatched shear strengths (if needed) and includes a drainage material within the geomembrane.<span class=\"Apple-converted-space\">\u00a0 <\/span>This unique system offers economical benefits when compared to geocomposite drainage products and provides superior performance. The geomembrane layer can be installed in advance of the full closure system, thus providing the precipitation avoidance and increased landfill gas capture benefits of a full closure system.\u00a0<\/span><\/p>\n<p class=\"p2\"><span class=\"s1\">Many landfills utilize or evaluate the use of \u201ctemporary capping geomembranes\u201d for precipitation avoidance and landfill gas odor mitigation. The temporary membranes are more economical than a traditional 40 or 60 mil product and are used to temporarily prevent precipitation from entering a specific area of the landfill. AGRU offers smooth and MicroSpike geomembranes that are used in temporary applications.<\/span><\/p>\n<p class=\"p2\"><span class=\"s1\">Also available is the <a href=\"https:\/\/agruamerica.com\/products\/closureturf\/\">AGRU ClosureTurf system.<\/a> The system is comprised of a covered structured geomembrane and an engineered synthetic turf, providing all of the benefits of a soil cover without the issues that soil can cause. It has a proven track record of significantly outperforming traditional vegetative closure methods with regard to installation, maintenance and environmental compliance.<\/span><\/p>\n","protected":false},"excerpt":{"rendered":"<p>What is leachate? In a lab, it is any liquid that extracts solids as it passes through matter. In a landfill, it is the water that enters the facility in a number of ways, passes through waste material on contact, contains a wide range of constituents, and must be addressed with a proper operations plan. &hellip; <a href=\"https:\/\/agruamerica.com\/es\/what-is-leachate\/\" class=\"more-link\">Continue reading<span class=\"screen-reader-text\"> \u00abLandfill Leachate Sources and Treatment Options\u00bb<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":2860,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"content-type":"","inline_featured_image":false,"footnotes":""},"categories":[269,1],"tags":[],"class_list":["post-1636","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog","category-ccr"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v25.9 (Yoast SEO v26.3) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>What is leachate? | AGRU America<\/title>\n<meta name=\"description\" content=\"What is leachate? 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