摘要
Early-warning is an effective way to control mud expansion in sewage treatment plants with A/O technology. In the research, warning indices and technology of active mud were explored and it is concluded that bacteria growth in mud can be obtained by observation of mud appearance and microorganism variety, and measurement of the number of filamentous bacteria, water quality, mud load and age, dissolved oxygen, temperature and pH. Furthermore, filamentous bacteria in mud can be researched through fluorescence in situ hybridization, PCR-temperature denaturing gradient gel electrophoresis and PCR-single-stranded conformation polymorphism in order to determine the characters and states of active mud to achieve early warning of mud expansion.
早期预警是控制A/O工艺污水处理厂污泥膨胀的最有效手段。文中对活性污泥预警指标及预警技术进行了探讨,指出可通过观察污泥外观、微生物种类及测量丝状菌数量、进水水质、污泥负荷、污泥龄、溶解氧、温度和pH值等相关指标,来掌握污泥中细菌的生长状况;同时可利用荧光原位杂交、PCR-温度梯度凝胶电泳、PCR-单链构象多态性分析等技术从分子的角度研究污泥中的丝状菌,从而更精确地预知和判断活性污泥的特性和状态,以实现对污泥膨胀的早期预警。
基金
Supported by National Natural Science Foundation of China(51208068)~~
