Document Detail

Field assessment of stratified aged-refuse-based reactor for landfill leachate treatment.
MedLine Citation:
PMID:  21669910     Owner:  NLM     Status:  Publisher    
The aim of this study was to investigate the engineering applicability of the stratified aged-refuse-based process for landfill leachate treatment. In this work, a pilot-scale (10 m(3) day(-1)) and a demonstration-scale (200 m(3) day(-1)) stratified reactor, containing the aged refuse excavated from an 8-year-old closed landfill cell, were used as a medium by which to treat landfill leachate generated in the Shanghai Refuse Landfill (SRL). The preliminary-treated leachate with initial CODcr, NH(3)-N and total-N concentrations of 2387-8592, 1431-2145 and 1290-2188 mg L(-1), respectively, was intermittently sprayed over the refuse surface eight times a day with 3 h per interval in the pilot study. The results from the pilot operation showed that on average 89.5% of COD, 98.8% of NH(3)-N and 52.6% of total N could be removed from a hydraulic load of 0.267-0.444 m(3) m(-3) refuse day(-1). Additionally, similar results were observed for the demonstration system even with the leachate of low BOD(5)/COD ratios (0.17-0.19). The investment and operational costs of this stratified process were about 20 000 yuan (€2200) and 1-2 yuan (€0.11-0.22) per m(3) leachate treated, respectively. Taken together, the stratified process has some significant advantages including low operation cost, easy maintenance and good adaptability to the leachate of variable quality, which makes this process a viable alternative for the treatment of landfill leachate.
Yan He; Youcai Zhao; Gongming Zhou; Minsheng Huang
Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2011-6-13
Journal Detail:
Title:  Waste management & research : the journal of the International Solid Wastes and Public Cleansing Association, ISWA     Volume:  -     ISSN:  1399-3070     ISO Abbreviation:  -     Publication Date:  2011 Jun 
Date Detail:
Created Date:  2011-6-14     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9881064     Medline TA:  Waste Manag Res     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
The State Key Laboratory of Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Tongji University, Shanghai, China.
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