摘要
针对污水处理厂碳源不足影响系统脱氮能力的问题,通过静态试验,分别以乙酸钠、微生物发酵产物和含菌剂的微生物发酵产物作为碳源,研究不同碳源及含量对反硝化的影响并分析经济可行性。研究结果表明,在微生物发酵产物的投加量即C/N分别为3,4,5时,反硝化速率分别为0.9796,1.0264,1.0646 mgN/(gVSS·h)。在含菌剂的微生物发酵产物的投加量即C/N分别为1.68,2.24,2.80时,反硝化速率分别为0.9818,1.0511,1.1511 mgN/(gVSS·h),污泥产率也较低。综合经济性分析结果,含菌剂的微生物发酵产物是最佳的投加碳源。
For the problem of insufficient carbon sources affecting the denitrification capacity in urban sewage treatment plants,sodium acetate,microbial fermentation products and microbial fermentation products containing microbial agents were used as carbon sources to study the effects of different carbon sources and contents on denitrification and analyze the economic feasibility by static tests.The results showed that when the dosage of microbial fermentation products,namely the C/N,were 3,4,and 5,respectively,the denitrification rates were 0.9796,1.0264,1.0646 mgN/(gVSS·h),separately.When the dosage of microbial fermentation products containing microbial agents,namely the C/N,were 1.68,2.24,2.80,respectively,the denitrification rates were 0.9818,1.0511,1.1511 mgN/(gVSS·h),severally.The sludge yield was also lower.Combined with the economic analysis results,the best carbon source for dosing was the microbial fermentation products containing microbial agents.
作者
杨静丹
蔡广强
周继昌
蔺洪永
包海花
丁秀峰
杜莉莉
王明中
Yang Jingdan;Cai Guangqiang;Zhou Jichang;Lin Hongyong;Bao Haihua;Ding Xiufeng;Du Lili;Wang Mingzhong(Central Plains Environment Protection Co.,Ltd.,Zhengzhou 450018,China;Zhengzhou Zhengdong New District Water Affairs(Group)Co.,Ltd.,Zhengzhou 450046,China)
出处
《山东化工》
CAS
2021年第21期243-245,249,共4页
Shandong Chemical Industry
基金
中原环保股份有限公司内部课题(RD13)。
关键词
碳源
C/N
反硝化速率
经济性
carbon source
C/N
denitrification rate
economy
