نتایج جستجو برای: leachate treatment

تعداد نتایج: 1396564  

Landfill leachates are potential threats for environmental degradation. This study was conducted to determine the leachate quality, to identify the dominant pollutants and to evaluate the leachate pollution potential of an active and closed dumping ground of an uncontrolled municipal solid waste landfill site in Kolkata, India using leachate pollution index. The results of the physico-chemical ...

جرفی, سهند, جعفرزاده, نعمت الله, رضائی کلانتری, روشنک, مهربانی اردکانی, محمد مهدی, هاشم پور, یلدا,

Background and Aim: High concentrations of organic compounds and ammonia and entry of toxic pollutants lead to a low efficiency of direct biological treatment of landfill leachate. The aim of this study was to determine the efficiency of a repeated fed-batch biological reactor with powdered active carbon (PAC) for landfill leachate treatment. Methods and Materials: Raw leach ate was pretreated ...

Journal: :environmental health engineering and management 0
nemat alah jaafarzadeh haghighi fard environmental technologies research center, department of environmental health engineering, school of health, ahvaz jundishapur university of medical sciences, ahvaz, iran sahand jorfi environmental technologies research center, department of environmental health engineering, school of health, ahvaz jundishapur university of medical sciences, ahvaz, iran mehdi ahmadi environmental technologies research center, department of environmental health engineering, school of health, ahvaz jundishapur university of medical sciences, ahvaz, iran samaneh mirali department of environmental health engineering, school of health, ahvaz jundishapur university of medical sciences, ahvaz, iran raheleh kujlu department of environmental health engineering, school of health, ahvaz jundishapur university of medical sciences, ahvaz, iran

background: mature landfill leachate is a complicated mixture which is resistant to biological treatment processes. the treatment of mature landfill leachate by struvite precipitation and fenton oxidation was the main objective of the current research. methods: struvite with the phosphate/ammonia/magnesium molar ratio of 1/1/1.05 was considered during all experiments. five initial phs of 3, 4, ...

2007
ABDULAZIZ M. ASSAEED ABDULLAH A. AL-DOSS

Rhazya stricta. an evergreen poisonous shrub is rapidly invading large areas of rangelands in Saudi Arabia. A laboratory study was conducted to investigate the effect of its dry foliage leachate on seedling growth and survival of some range plants including R. stricta its self at different stages of seedling growth. Results indicated that seedlings were more susceptible to allelopathic effects ...

2017
Reyhan Erdogan Zeynep Zaimoglu

Current landfill regulations provide for the responsible management of solid waste and a safer alternative to the outdated practices of open or illegal dumping. Aside from imparting aesthetic value, natural or planted vegetation on landfill sites has an important role in erosion control and removal of contaminants, and may also be used in leaching treatment. The use of leachate for the irrigati...

2008
Francisco J. Colomer

We describe herein a useful model for assessing the environmental impact of the breakage of earthen dams used to retain leachate fluids. To create this model, we analyzed three parameters: (1) the characteristics of both the earthen dam and the leachate; (2) the behavior of the leachate cascade resulting from breakage of the dam; and (3) the environmental effect of the resulting pollution. To a...

Journal: :Environmental science. Processes & impacts 2014
Gerrad D Jones Peter V Benchetler Kenneth W Tate Edward P Kolodziej

Although studies have evaluated the ecotoxicity and fate of trenbolone acetate (TBA) metabolites, namely 17α-trenbolone (17α-TBOH), 17β-trenbolone (17β-TBOH), and trendione (TBO), their environmental transport processes remain poorly characterized with little information available to guide agricultural runoff management. Therefore, we evaluated TBA metabolite transport in representative agricul...

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