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昆明市污水排水系统产甲烷规律的模拟实验研究
引用本文:周瑜,黄建洪,宁平,杨丽萍,周新云. 昆明市污水排水系统产甲烷规律的模拟实验研究[J]. 环境污染治理技术与设备, 2013, 0(9): 3531-3536
作者姓名:周瑜  黄建洪  宁平  杨丽萍  周新云
作者单位:[1]昆明理工大学环境科学与工程学院,昆明650093 [2]环境保护部华南环境科学研究所,广州510655
基金项目:国家环保公益性行业专项(200909023)
摘    要:通过对昆明市餐饮和居民生活污水厌氧模拟实验研究,初步探讨生活污水中CH4的产生规律,实验结果表明,在自然条件下,餐饮和居民生活污水中产生的甲烷浓度最大值分别为1.63 mg/L和3.82 mg/L。并且将COD、硫酸盐、硫化物、TN的浓度变化与甲烷浓度变化进行Pearson简单相关性分析,结果表明,1/COD、COD/硫酸盐和1/TN与甲烷在置信度为0.01时极显著相关,硫化物与甲烷在置信度为0.05时不相关;COD、硫酸盐和TN浓度的变化对生活污水中甲烷的产生起关键性作用。对居民生活污水中甲烷产生规律进行温度和pH控制分析研究,实验结果表明,生活污水在25~30℃时,24 h内甲烷产生量最大值为8.6494 mg/L,明显大于其他温度段的甲烷产生量;在pH为7~8之间时,甲烷的产生量在24 h内达到的最大值为3.0477 mg/L,明显高于其他pH控制段的甲烷产生量。

关 键 词:生活污水  厌氧降解  甲烷  相关性分析

Simulative experimental research of methane production in sewer systems in Kunming
Zhou Yu,Huang Jianhong,Ning Ping,Yang Liping,Zhou Xinyun. Simulative experimental research of methane production in sewer systems in Kunming[J]. Techniques and Equipment for Environmental Pollution Control, 2013, 0(9): 3531-3536
Authors:Zhou Yu  Huang Jianhong  Ning Ping  Yang Liping  Zhou Xinyun
Affiliation:1. Faculty of Environmental Science and Engineering, Kunmlng University of Science and Technology, Kunming 650093, China; 2. South China Institute of Environmental Sciences, MEP, Guangzhou 510655, China)
Abstract:The anaerobic simulation tests of dining and residential wastewater in Kunming were carried out in order to discuss the generation of CH 4.The results showed that the maximum of methane concentrations were 1.63 mg / L and 3.82 mg / L,respectively in dining and residential wastewater under natural conditions.And the effects of COD,sulfate,sulfide and TN concentration on methane concentration were analyzed.It showed that the 1 / COD,COD / sulfate 1 / TN and methane concentrations were significant in the confidence of 0.01.However the sulfide and methane concentrations were unrelated in the confidence of 0.05.It also showed that COD,sulfate and TN played important roles in methane production under anaerobic degradation.By conducting the temperature and pH in residential wastewater in 24 hours,it showed that the maximum of methane concentration was 8.6494 mg / L at 25 ~ 30℃.And the maximum of methane concentration was 3.0477 mg / L in the pH of 7 ~ 8.This generation concentration was obviously higher than others.
Keywords:wastewater  anaerobic degradation  methane  correlation analysis
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