AEROBIC BIOLOGICAL TREATABILITY STUDIES ON LANDFILL LEACHATE WITH NITRIFICATION AND DENITRIFICATION
نویسندگان
چکیده
منابع مشابه
Aerobic biological treatment of landfill leachate
There is an ongoing need to treat leachates from landfills using approaches that avoid expensive installation and operating costs. Faced with such a problem, Powys County Council (Wales, UK) developed a treatment system based on practical experience. Leachate was re-circulated through aeration towers containing a biofilm supported on plastic media before being polished in reed/filter beds. Inve...
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The occurrence of simultaneous partial nitrification, anaerobic ammonium oxidation and denitrification (SNAD) observed in a single partially aerated full-scale bioreactor treating landfill-leachate is reported in this paper. At present, the full-scale bioreactor is treating an average leachate flow of 304 m(3)d(-1) with a sludge retention time between 12 and 18d. The average COD, NH(4)(+)-N and...
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In addition to being an integral part of the planet’s nitrogen cycle, bacterially facilitated nitrification is a process of great commercial importance in the wastewater treatment, aquaculture and agronomy industries. Twelve distinct species of heterotrophic bacteria, belonging to the genera Bacillus, Pediococcus and Lactobacillus, were isolated from BiOWiSH’s commercially available water treat...
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Nitrous oxide (NrO) production in aerobic, intact soil cores collected from two forest sites was partitioned into different sources of N,O by subjecting soils to specitlc inhibitors during short-term incubations. We used acetylene (IO Pa) to selectively inhibit N,O production by nitrifiers, 100 kPa (100% v/v) 0, to inhibit N,O production by denitrifiers, and sterilixed soil to evaluate chemical...
متن کاملEffect of pine bark and compost on the biological denitrification process of non-hazardous landfill leachate: focus on the microbiology.
In an attempt to optimize the cost-efficiency of landfill leachate treatment by biological denitrification process, our study focused on finding low-cost alternatives to traditional expensive chemicals such as composted garden refuse and pine bark, which are both available in large amount in South African landfill sites. The overall objective was to assess the behaviour of the bacterial communi...
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ژورنال
عنوان ژورنال: Detritus
سال: 2019
ISSN: 2611-4135
DOI: 10.31025/2611-4135/2019.13840