Effects of pretreatment condition of MSW on components of leachate and result of MFC treatment

YUAN Haoran; DENG Lifang; WANG Yazhuo; CHEN Yong; HUANG Hongyu

doi:10.3969/j.issn.0438-1157.2012.10.033

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Effects of pretreatment condition of MSW on components of leachate and result of MFC treatment

更新时间：2025-12-10

- Effects of pretreatment condition of MSW on components of leachate and result of MFC treatment
- CIESC Journal Issue 10, Pages: 3236-3242(2012)
- 作者机构：
  
  1. 中国科学院广州能源研究所,广东,广州,510640
  2. 中国科学院可再生能源与天然气水合物重点实验室,广东,广州,510640
  3. 中国科学院广州分院,广东,广州,510070
- 作者简介：
- 基金信息：
- DOI：10.3969/j.issn.0438-1157.2012.10.033
  CLC： 703.1
- Online First：05 October 2012，
  
  Published：05 October 2012
- 稿件说明：
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YUAN Haoran, DENG Lifang, WANG Yazhuo, et al. Effects of pretreatment condition of MSW on components of leachate and result of MFC treatment[J]. CIESC Journal, 2012, (10): 3236-3242.
DOI：

YUAN Haoran, DENG Lifang, WANG Yazhuo, et al. Effects of pretreatment condition of MSW on components of leachate and result of MFC treatment[J]. CIESC Journal, 2012, (10): 3236-3242. DOI： 10.3969/j.issn.0438-1157.2012.10.033.

摘要

在实际生产生活中

城市垃圾焚烧或热解处置前一般需经过7~10 d的堆放预处理

预处理可去除垃圾中部分水分、提高垃圾热值

对于垃圾处理质量、热能回收、污染物排放等有着重要的影响。因此

本实验详细跟踪了城市垃圾预处理条件如堆放温度、堆放时间等对城市垃圾含水率、渗滤液产生量和渗滤液组分的影响

并进一步考察了其对渗滤液微生物燃料电池处理效果的影响。垃圾堆放温度实验结果显示

当垃圾堆放于40℃时效果最佳

此时垃圾减重率适中

所得的渗滤液中B/C比约为0.31、氨氮浓度约为1560 mg·L-1

适宜生化处理。此条件下所得的渗滤液经MFC处理时电池可获得0.29 V的输出电压

且经7 d处理后渗滤液中COD、氨氮去除率可分别达66.2%和87.2%。随后

在最佳堆放温度下进一步考察堆放时间的影响。结果显示

在最佳堆放温度40℃下

垃圾堆放6 d后所得的渗滤液组分最易于生化处理

其B/C比约为0.32、氨氮浓度约为1520 mg·L-1

经MFC处理时电池可获得0.29 V的输出电压

且经7 d处理后渗滤液中COD、氨氮的去除率分别为62.7%、87.6%。综上所述

40℃下堆放6 d是城市垃圾焚烧或热解处置预处理的最佳条件

此条件下

垃圾减重率和渗滤液产生量适中

且所得渗滤液可生化性较强

适合用于MFC产电处理。

Abstract

For an actual process of production

7—10 days pre-stack treatment

which could remove partial water and improve calorific value of municipal solid waste(MSW)

is generally required prior to its incineration or pyrolysis.The pre-treatment has significant impacts on the quality of waste disposal

energy recovery and pollutants emissions.In this study

the effects of pretreatment conditions of MSW on components of leachate and result of MFC treatment were investigated.It was found that the optimal pretreatment condition for MSW prolysis was:6 days stacking at 40℃.In that case

the weight of MSW lost by 30%

the concentrations of BOD and NH4+-N as well as the B/C value in the leachate were 20800 mg·L-1

1410 mg·L-1

and 0.32 respectively

and the content of nutrient materials was suitable for biochemical treatment.In addition

when MFC was employed for treating the leachate

the maximum output voltage could achieve 0.29 V

and the cell operated continuously 7 days

69.4% of BOD and 87.6% of NH4+-N in the leachate could be removed.

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