Influence of landfill structures on stabilization of fully recycled leachate

Abstract

The experiment was conducted to treat the leachate from two simulating columns by recycling to the columns themselves without being discharged into the environment. The columns were employed to simulate anaerobic and semi-aerobic landfills separately. The influence of landfill structure on stabilization of fully recycled leachate was studied. The results show that semi-aerobic landfill structure accelerates the stabilization of leachate recycled. The full recycle of leachate in semi-aerobic landfill is a very feasible and effective technology for leachate treatment with low cost and energy saving especially in arid and rare rainfall regions. Meanwhile, the environmental impact of landfill can be greatly minimized.

Keywords

landfill structure / full recycle / stabilization of leachate / environmental impact

References

[1] MengLiao, XiongXiang-yun, MaJian. Present situation and problems in treatment of leachate in China [J]. Water and Wastewater, 2003, 29(10): 26-29(in Chinese)

[2] LiQing-song, JinChun-ji, QiaoZhi-xiang, et al.. Generation and actuality treatment technology of landfill leachate[J]. Journal of Qingdao University, 2003, 18(4): 80-83(in Chinese)

[3] YuXiao-hua, LiGuo-jian, HePin-jing, et al.. Bioreactor and its application [J]. Environmental Protection, 2003, 2: 24-26(in Chinese)

[4] ZhangHui, HuangC P. Landfill leachate treatment by fenton process: problems encountered during scale up from laboratory model to pilot plant [J]. Chongqing Environmental Science, 2002, 24(1): 26-28(in Chinese)

[5] IremŠan a, TurgutT. Onayb. Impact of various leachate recirculation regimes on municipal solid waste degradation [J]. Journal of Hazardous Materials, 2001, B87: 259-271

[6] Debra R. Reinhart. Full-scale experiences with leachatere-circulating landfills: case studies[J]. Waste Management and Research, 1996, (14): 347 – 365.

[7] LIU Chun-yao. Research on stabilization process in laboratory simulating semi-aerobic landfill[D]. Southwest Jiaotong University, 2004. (in Chinese)

[8] RobertJ F, MortonA B. Hydrogen sulfide production during decomposition of landfill inputs[J]. J Environ Eng, 1996, 124(4): 353-361

[9] MorrisJ W F, VasukiN C, BakerJ A. Findings from longterm monitoring studies at MSW landfill facilities with leachate recirculation[J]. Waste Man, 2003, 23(6): 653-666

[10] WangJ Q, ShenD S. An experimental study with bioreactor landfill system[J]. Chin J Appl Ecol, 2003, 14(11): 2077-2078