PROPERTIES OF ORGANIC MATTER IN ANAEROBIC FERMENTATION LEACHATE FROM A DOMESTIC WASTE INCINERATION POWER PLANT IN THE COLD REGION IN NORTHERN CHINA

CHEN Zhengrui; ZHANG Shi; YIN Linlin; ZHANG Jun; DONG Jiankai; JIN Tao; ZHOU Hong; QU Peng; FENG Jiazi; WANG Shutao

doi:10.13205/j.hjgc.202303013

Volume 41 Issue 3

Mar. 2023

Turn off MathJax

Article Contents

Article Navigation > ENVIRONMENTAL ENGINEERING > 2023 > 41(3): 97-102

CHEN Zhengrui, ZHANG Shi, YIN Linlin, ZHANG Jun, DONG Jiankai, JIN Tao, ZHOU Hong, QU Peng, FENG Jiazi, WANG Shutao. PROPERTIES OF ORGANIC MATTER IN ANAEROBIC FERMENTATION LEACHATE FROM A DOMESTIC WASTE INCINERATION POWER PLANT IN THE COLD REGION IN NORTHERN CHINA[J]. ENVIRONMENTAL ENGINEERING , 2023, 41(3): 97-102. doi: 10.13205/j.hjgc.202303013

Citation:

CHEN Zhengrui, ZHANG Shi, YIN Linlin, ZHANG Jun, DONG Jiankai, JIN Tao, ZHOU Hong, QU Peng, FENG Jiazi, WANG Shutao. PROPERTIES OF ORGANIC MATTER IN ANAEROBIC FERMENTATION LEACHATE FROM A DOMESTIC WASTE INCINERATION POWER PLANT IN THE COLD REGION IN NORTHERN CHINA[J]. ENVIRONMENTAL ENGINEERING , 2023, 41(3): 97-102. doi: 10.13205/j.hjgc.202303013

Citation:

CHEN Zhengrui, ZHANG Shi, YIN Linlin, ZHANG Jun, DONG Jiankai, JIN Tao, ZHOU Hong, QU Peng, FENG Jiazi, WANG Shutao. PROPERTIES OF ORGANIC MATTER IN ANAEROBIC FERMENTATION LEACHATE FROM A DOMESTIC WASTE INCINERATION POWER PLANT IN THE COLD REGION IN NORTHERN CHINA[J]. ENVIRONMENTAL ENGINEERING , 2023, 41(3): 97-102. doi: 10.13205/j.hjgc.202303013

PDF( 1286 KB)

PROPERTIES OF ORGANIC MATTER IN ANAEROBIC FERMENTATION LEACHATE FROM A DOMESTIC WASTE INCINERATION POWER PLANT IN THE COLD REGION IN NORTHERN CHINA

doi: 10.13205/j.hjgc.202303013

1. School of Environment, Harbin Institute of Technology, Harbin 150090, China;
2. School of Architecture, Harbin Institute of Technology, Harbin 150090, China;
3. China Power Construction Group Nuclear Power Engineering Co., Ltd, Jinan 250102, China

Received Date: 2022-03-02
Available Online: 2023-05-26
Publish Date: 2023-03-01

Abstract

Abstract

The frozen garbage in the waste incineration plant of northern China is usually difficult to dehydrate in winter, which seriously affects the efficiency of waste incineration, and has become a bottleneck problem limiting the development of the waste incineration industry. This study focused on the changes of COD, TOC, NH₄⁺-N, TN and TP in the leachate during anaerobic fermentation of garbage waste under the fermentation temperature of 10 ℃, 20 ℃ and 30 ℃ in the waste storage pit of incineration plant for 10 days. The results showed that at 10 ℃, the concentrations of COD, TOC, TN and NH₄⁺-N in leachate all decreased rapidly within 4 days, and the TP concentration decreased to the minimum value on day 6th. Then the organic indexes gradually increased later and reached the maximum on day 10th. At 20 ℃ and 30 ℃, COD, TOC, NH₄⁺-N and TP concentration decreased gradually in first three days, then increased gradually in the 3rd to 7th day, and decreased gradually in the 7th to 10th day. It was found that the decrease of organic concentration in the leachate at the initial stage was mainly due to the moisture precipitation in the garbage. In the middle stage, macromolecular organic matter in the garbage was degraded into smaller molecular matter and transferred into leachate, and organic matter concentration in leachate increased. In the later stage, the utilization of C, N and P in leachate by microorganisms was the main reason for the decline of each parameter. In addition, when the fermentation temperature of garbage was higher than 20 ℃, and the fermentation time was longer than 3 to 4 days, the macromolecular fiber chain in the garbage was broken, and a large amount of organic matter was degraded and entered the leachate, leading to the decrease of garbage calorific value, affecting the garbage incineration effect. Finally, after comprehensive consideration of multiple factors, such as the change of organic matter in fermentation leachate, the calorific value of waste and the capacity of waste storage pits, it was confirmed that the garbage fermentation temperature and time in storage pit in cold areas should be controlled at 10 to 20 ℃ for 3 to 6 days. The research can provide reference for further research on influencing factors of frozen waste incineration efficiency in cold regions in China.
- cold region,
- waste incineration,
- anaerobic fermentation,
- organic matter in leachate

FullText(HTML)

References(15)

References

[1]	范春平, 郑世伟, 邢艳明. 高寒地区垃圾焚烧厂冰冻垃圾危害及防治措施[J]. 环境卫生工程, 2013, 21(4):39-40.
[2]	陈国义, 李兴国, 高于. 刍议北方地区冬季生活垃圾堆酵析水[J]. 环境卫生工程, 2019, 27(4):32-40.
[3]	商平, 李芳然, 郝永俊,等. 城市生活垃圾焚烧前堆酵脱水研究进展[J]. 环境卫生工程, 2012, 20(1):5-8.
[4]	张磊, 孙琪琛, 刘宁,等. 中国城市生活垃圾焚烧处理分析[J]. 环境与发展, 2018, 30(6):32-36.
[5]	李颖. 垃圾渗滤液处理技术及工程实例[M]. 北京:中国环境科学出版社, 2008.
[6]	BOHN I, BJÖRNSSON, MATTIASSON B. The energy balance in farm scale anaerobic digestion of crop residues at 11~37℃[J]. Process Biochemistry, 2007,42(1):57-64.
[7]	ZHI Z, LI L. Comparative analysis of water quality's characteristic for landfill leachate and improvement of treatment process in Chongqing[J]. Journal of Central South University of Technology, 2007,14:516-520.
[8]	杨柳, 耿晓丽. 城市生活垃圾焚烧厂渗滤液特点及处理现状[J]. 中国沼气, 2014, 32(4):24-47.
[9]	宋灿辉, 吕志中, 方朝军. 生活垃圾焚烧厂垃圾渗滤液处置技术[J]. 环境工程, 2008,26(增刊1):148-150.
[10]	SFAB C, SHAB C, XING H D, et al. Insights into the microbial community structure of anaerobic digestion of municipal solid waste landfill leachate for methane production by adaptive thermophilic granular sludge[J]. Electronic Journal of Biotechnology, 2019, 39:98-106.
[11]	国家环境保护总局. 水和废水监测分析方法[M].4版,北京:中国环境科学出版社, 2002. 221-285.
[12]	张衍国, 李清海, 龚伯勋,等. 垃圾堆放发酵机理与应用工艺研究[J]. 环境工程学报, 2005, 6(10):69-72.
[13]	阿世孺, 张洪波. 堆酵:低热值生活垃圾焚烧工艺的重要环节[J]. 城市垃圾处理技术, 2003(4):16-18.
[14]	李建政, 任南琪. 污染控制微生物生态学[M]. 哈尔滨:哈尔滨工业大学出版社, 2005.
[15]	任南琪, 马放. 污染控制微生物学[M]. 哈尔滨:哈尔滨工业大学出版社, 2002.