Journal
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
Volume 23, Issue 1, Pages 793-799Publisher
SPRINGER HEIDELBERG
DOI: 10.1007/s11356-015-5226-8
Keywords
DOM fractions; Three-dimensional excitation-emission matrix; Humic acid; Water quality; Landfill leachate
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Funding
- Key Project of Henan Ministry of Education [14A150018]
- Basic and Front-line Technological Research Project of Henan Province [122300410413]
- Key Programs of Henan for Science and Technology Development [142102310273]
- Key Project of Henan Educational Committee [14A150053]
- Education Department of Henan Province Science and Technology Research Projects [12B610005]
- Program of Foundation and Frontier Technology Research of Henan Province [122300410296]
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The water quality improvement of landfill leachate after sequencing batch reactor (SBR) activated sludge process were evaluated by chemical oxygen demand (COD), dissolved organic matter (DOM) fractions, and three-dimensional excitation-emission matrix (EEM), from which the new understanding was obtained. The results indicated that less than 14 % COD was removed by SBR. The EEM of leachate and SBR effluent showed that HPO-A and TPI-A were appeared in the peak C, while the HPI, HPO-N, and TPI-N could not be found due to dilution. Although humic acid appeared in peak C, not all the organic materials in peak C are humic acid. And because landfill leachate is a kind of complicated wastewater, therefore, only EEM cannot efficiently reflect the water quality.
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