N2O emission from a combined ex-situ nitrification and in-situ denitrification bioreactor landfill

被引：12

作者：

Wang, Ya-nan ^{[1
,2
]}

Sun, Ying-jie ^{[2
]}

Wang, Lei ^{[1
]}

Sun, Xiao-jie ^{[3
]}

Wu, Hao ^{[4
]}

Sian, Rong-xing ^{[2
]}

Li, Jing-jing ^{[2
]}

机构：

[1] Tongji Univ, Sch Environm Sci & Engn, Shanghai 200092, Peoples R China

[2] Qingdao Technol Univ, Sch Environm & Municipal Engn, Qingdao 266033, Peoples R China

[3] Guilin Univ Technol, Guangxi Key Lab Environm Pollut Control Theory &, Coll Environm Sci & Engn, Guilin 541004, Peoples R China

[4] Sanlihe Subdist Off, Qingdao 266033, Peoples R China

来源：

WASTE MANAGEMENT | 2014年 / 34卷 / 11期

关键词：

Nitrous oxide (N2O); Municipal solid waste (MSW); Bioreactor landfill; Influencing factor; NITROUS-OXIDE EMISSION; MUNICIPAL SOLID-WASTE; LEACHATE RECIRCULATION; AMMONIA REMOVAL; COD/N RATIO; WATER; GAS; REFUSE; SYSTEM; IMPACT;

D O I：

10.1016/j.wasman.2014.06.023

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

A combined process comprised of ex-situ nitrification in an aged refuse bioreactor (designated as A bioreactor) and in-situ denitrification in a fresh refuse bioreactor (designated as F bioreactor) was constructed for investigating N2O emission during the stabilization of municipal solid waste (MSW). The results showed that N2O concentration in the F bioreactor varied from undetectable to about 130 ppm, while it was much higher in the A bioreactor with the concentration varying from undetectable to about 900 ppm. The greatly differences of continuous monitoring of N2O emission after leachate cross recirculation in each period were primarily attributed to the stabilization degree of MSW. Moreover, the variation of N2O concentration was closely related to the leachate quality in both bioreactors and it was mainly affected by the COD and COD/TN ratio of leachate from the F bioreactor, as well as the DO, ORP, and NOi-N of leachate from the A bioreactor. (C) 2014 Elsevier Ltd. All rights reserved.

引用

页码：2209 / 2217

页数：9

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