Long-term removals of organic micro-pollutants in reactive media of horizontal subsurface flow constructed wetland treating landfill leachate

被引：17

作者：

Witthayaphirom, Chayanid ^{[1
]}

Chiemchaisri, Chart ^{[1
]}

Chiemchaisri, Wilai ^{[1
]}

Ogata, Yuka ^{[2
]}

Ebie, Yoshitaka ^{[2
]}

Ishigaki, Tomonori ^{[2
]}

机构：

[1] Kasetsart Univ, Fac Engn, Dept Environm Engn, Bangkok 10900, Thailand

[2] Natl Inst Environm Studies, Ctr Mat Cycles & Waste Management Res, Tsukuba, Ibaraki 3058506, Japan

来源：

BIORESOURCE TECHNOLOGY | 2020年 / 312卷

关键词：

Constructed wetland; Landfill leachate; Micro-pollutants; Reactive media; DIBUTYL PHTHALATE; WASTE-WATER; NITROGEN REMOVAL; MSW LANDFILL; BIODEGRADATION; PERFORMANCE; ADSORPTION; MECHANISM; BARRIER; ESTERS;

D O I：

10.1016/j.biortech.2020.123611

中图分类号：

S2 [农业工程];

学科分类号：

0828 ;

摘要：

In this work, the removals of organic micro-pollutants (OMPs), i.e. DEP, DBP, 2,6-DTBP, BHT, and DEHP in sand, clay and iron powder mixed media of horizontal subsurface flow constructed wetland (HSSF) from landfill leachate were investigated over 3 years period. The biodegradation was mainly responsible for the removals of DEP, DBP, 2,6-DTBP and BHT whereas DEHP was initially removed through adsorption and formation of iron-organic complex and then subsequently biodegraded during long-term operation as OMP degrading microbial consortium attached to the reactive media was enriched. This study demonstrates that an application of reactive HSSF system can be a viable option for advanced landfill leachate treatment to meet ecological safety level.

引用

页数：8

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