Challenges and engineering application of landfill leachate concentrate treatment

被引：23

作者：

Li, Qian ^{[1
]}

Cui, Hanlin ^{[2
]}

Li, Yihao ^{[1
]}

Song, Xin ^{[3
]}

Liu, Wenzong ^{[1
]}

Wang, Yongxuan ^{[4
]}

Hou, Haimeng ^{[4
]}

Zhang, Hongbo ^{[5
]}

Li, You ^{[5
]}

Wang, Fan ^{[6
]}

Song, Jun ^{[6
]}

Ye, Hanfeng ^{[6
]}

Song, Sirui ^{[6
]}

Che, Tong ^{[6
]}

Shao, Shuai ^{[6
]}

Kong, Deyong ^{[4
,6
]}

Liang, Bin ^{[1
]}

机构：

[1] Harbin Inst Technol Shenzhen, Sch Civil & Environm Engn, State Key Lab Urban Water Resource & Environm, Shenzhen Key Lab Organ Pollut Prevent & Control, Shenzhen 518055, Peoples R China

[2] Harbin Inst Technol, Sch Environm, State Key Lab Urban Water Resource & Environm, Harbin 150090, Peoples R China

[3] Minist Ecol & Environm, Solid Waste & Chem Management Ctr, Beijing 100029, Peoples R China

[4] Shenyang Acad Environm Sci, Shenyang 110167, Peoples R China

[5] Everbright Environm Protect China Co Ltd, Shenzhen 518000, Peoples R China

[6] Liaoning HaiTianGe Enviromental Protect Technol Co, Fushun 113122, Peoples R China

来源：

ENVIRONMENTAL RESEARCH | 2023年 / 231卷

关键词：

Landfill leachate concentrate (LLC); Geopolymer solidification (GS); Sustainability; LLC resource Recycling; Engineering application; FLY-ASH; COAGULATION; GEOPOLYMER; REMOVAL; NANOFILTRATION; FENTON; SOLIDIFICATION/STABILIZATION; DEGRADATION; OZONATION; OXIDATION;

D O I：

10.1016/j.envres.2023.116028

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Landfill leachate concentrate (LLC) is a concentrated waste stream from landfill leachate treatment systems and has been recognized as a key challenge due to its high concentration of salts, heavy metals, organic matters, etc. Improper management of LLC (e.g. reinjection) would exacerbate the performance of upstream treatment pro-cesses and pose risks to the surrounding environments near landfill sites. Addressing the challenge and recov-ering resources from LLC have thus been attracting considerable attention. Although many LLC treatment technologies have been developed, a comprehensive discussion about the challenges still lacks. This review critically evaluates mainstream LLC treatment technologies, namely incineration, coagulation, advanced oxidation, evaporation and solidification/stabilization. We then introduce a geopolymer-based solidification (GS) process as a promising technology owning to its simple casting process and reusable final product and summarize engineering applications in China. Finally, we suggest investigating hybrid systems to minimize LLC production and achieve the on-site reuse of LLC. Collectively, this review provides useful information to guide the selection of LLC treatment technologies and suggests a sustainable alternative for large-scale application, while also highlighting the need of joint efforts in the industry to achieve efficient, ecofriendly and economical on-site management of landfill waste streams.

引用

页数：9

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