Biological control of leachate from municipal landfills

被引：79

作者：

Ding, AZ ^{[1
]}

Zhang, ZH

Fu, JM

Cheng, LR

机构：

[1] Chinese Acad Sci, Guangzhou Inst Geochem, State Key Lab Organ Geochem, Guangdong Key Lab Resources Utilizat & Environm P, Guangzhou 510640, Guangdong, Peoples R China

[2] Ministry Natl Lab & Resources, Inst Hydrogeol & Engn Geol, Zhengding 050803, Hebei, Peoples R China

[3] Univ Tubingen, Dept Appl Geol, D-72076 Tubingen, Germany

来源：

CHEMOSPHERE | 2001年 / 44卷 / 01期

关键词：

landfill; leachate; effective microorganisms; bio-barrier; COD; inorganic nitrogen;

D O I：

10.1016/S0045-6535(00)00377-5

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Landfilling is still a popular way for municipal solid waste (MSW) treatment. Leachate generated from landfills is becoming a great threat to the surroundings as it contains high concentrations of toxic substances. How to control leachate migration and to protect environmental pollution is now a concern for many environmentalists. In this work, eight effective microorganisms (EMs) were isolated from wastewater, sludge and soil samples by enrichment culturing techniques and used for leachate migration control in columns and pilot experiments. The preliminary experiments reveal that the EMs could remove 25% and 40% of chemical oxygen demand (COD) from leachate in fine sand and sabulous clay columns, respectively. An aquifer system was designed to simulate in-situ control for leachate migration with EMs. The EMs were injected into the simulated aquifer and formed a permeable biological barrier. The experimental results show that the barrier removed 95% of COD and approximately 100% inorganic nitrogen, that is, nitrate-N plus nitrite-N plus ammonia-N, from the migrating leachate. CO2 production, redox potential and microbial number were monitored simultaneously in the aquifer during the experiment to assess the EMs' activities and the effect of the bio-barrier. The data indicate that the EMs isolated in this work bad high activities and were effective for organic and nitrogenous contaminant removal throughout the experiment. (C) 2001 Elsevier Science Ltd. All rights reserved.

引用

页码：1 / 8

页数：8

共 42 条

[1] Aqueous- and solid-phase biogeochemistry of a calcareous aquifer system downgradient from a municipal solid waste landfill (Winterthur, Switzerland) [J].

Amirbahman, A ;

Schonenberger, R ;

Johnson, CA ;

Sigg, L .

ENVIRONMENTAL SCIENCE & TECHNOLOGY, 1998, 32 (13) :1933-1940

[2]

*APHA AWWA, 1985, STAND METH EX WAT WA

[3] BACTERIAL POPULATION DEVELOPMENT AND CHEMICAL CHARACTERISTICS OF REFUSE DECOMPOSITION IN A SIMULATED SANITARY LANDFILL [J].

BARLAZ, MA ;

SCHAEFER, DM ;

HAM, RK .

APPLIED AND ENVIRONMENTAL MICROBIOLOGY, 1989, 55 (01) :55-65

[4] ENHANCED DEGRADATION OF DISSOLVED BENZENE AND TOLUENE USING A SOLID OXYGEN-RELEASING COMPOUND [J].

BIANCHIMOSQUERA, GC ;

ALLENKING, RM ;

MACKAY, DM .

GROUND WATER MONITORING AND REMEDIATION, 1994, 14 (01) :120-128

[5] In-situ remediation of Cr(VI)-contaminated groundwater using permeable reactive walls: Laboratory studies [J].

Blowes, DW ;

Ptacek, CJ ;

Jambor, JL .

ENVIRONMENTAL SCIENCE & TECHNOLOGY, 1997, 31 (12) :3348-3357

[6]

Blowes DW, 1995, GEOTECH SP, P1588

[7] Hydrologic and microbiological factors affecting persistence and migration of petroleum hydrocarbons spilled in a continuous-permafrost region [J].

Braddock, JF ;

Mccarthy, KA .

ENVIRONMENTAL SCIENCE & TECHNOLOGY, 1996, 30 (08) :2626-2633

[8]

CARLEY BN, 1991, RES J WATER POLLUT C, V63, P51

[9] Comparison of E(h) and H-2 measurements for delineating redox processes in a contaminated aquifer [J].

Chapelle, FH ;

Haack, SK ;

Adriaens, P ;

Henry, MA ;

Bradley, PM .

ENVIRONMENTAL SCIENCE & TECHNOLOGY, 1996, 30 (12) :3565-3569

[10]

*CHIN ENV PROT BUR, 1998, CHIN ENV STAT B

← 1 2 3 4 5 →