污水处理厂内碳源利用的研究  

Experiment and Research of Carbon Source Utilization of Sewage Treatment Plant

作　　者：肖思海 汪莉 

机构地区：[1]徐州市环境监测中心站,江苏徐州221006 [2]徐州核瑞环保投资有限公司,江苏徐州221004

出　　处：《环境科技》2014年第3期20-23,共4页Environmental Science and Technology

摘　　要：利用剩余污泥在厌氧水解酸化阶段产生的高浓度有机酸作为系统内碳源,在解决进水碳源不足的同时实现污泥的减量,系统内碳源的使用也实现了剩余污泥的资源化利用。确定了碱解的最佳pH值为10、碱解最佳的发酵时间为3 d时,同时保证剩余污泥具有较高的污泥浓度时得到的水解酸化液体中富含的VFA较多,完全可以替代外加碳源。结合荆马河污水处理厂运行实践,分析剩余污泥碱解发酵上清液作为污水厂内碳源的可行性。Sludge containing high concentrations of organic acid production in the anaerobic hydrolysis acidification phase was used as the carbon source in the system to alleviate the lack of carbon source in the inlet water and reduction of sludge. The use of carbon source in the system had also realized the resource utilization for residual sludge. When the alkaline pH solution was 10, fermentation time was 3 d, meanwhile ensuring a high concentration of the residual sludge, the concentration of VFA was higher in the hydrolysis acidification liquid, which was a sufficient substitute for the external carbon source. Combined with the operation practice of Jingma River Sewage Treatment Plant, the feasibility of using residual sludge alkaline fermentation supernatant as carbon sources in sewage plant was analyzed.

关 键 词：剩余污泥 碱解 厌氧水解酸化 上清液 反硝化脱氮 

分 类 号：X7[环境科学与工程—环境工程]