摘要
在监测手段或者监测点设置不足,且大多数商业软件只提供模拟计算出水结果的情况下,根据污水处理工艺流程中污染物的变化来优化工艺设计和运行是非常困难的。因此,设计基于污染物流程变化的模拟系统对于工艺优化显得十分必要。依据参数类别进行了模块化设计,以便于快速建模和运算。以西南某旅游省会城市已有的MBR工艺改造为例,利用模拟系统建模,通过增加进水点、调整回流比,探究出水总氮由10mg/L左右降低至5mg/L左右的运行条件:结果表明,出水总氮下降了45.80%,回流比总和降低了37.00%。将该系统用于该市其他新建污水厂的设计和运行中,证明了系统的有效性。
It is hard to optimize the design and operation of activated sludge process ( ASP) if no sufficirnl monitoring means or sites are available and only simulated effluent result is provided by most commercial software. Therefore, it is necessaiy to design a simulation system based on pollutants change along the technological flow for process optimization. The system was designed in modularization according to the types of parameters, so that modeling and calculation could be carried out quickly. A model was established in an existing MBR process reconstruction project of a capital tourist city in south west China. The operation condition was explored by reducing the effluent total nitrogen from around 10mg/L to about 5mg/L along with the increase of feeding points and adjustment of reflux ratios. The results showed that the effluent total nitrogen and the sum of reflux ratios decreased by 45. 80% and 37. 00%, respectively. The feasibility of the system was proved after it was used in the design and operation of other newly-built sewage treatment plants in the city.
作者
张发根
李淑更
李捷
罗凡
ZHANG Fa-gen;LI Shu-geng;LI Jie;LUO Fan(School of Environmental Science and Engineering, Guangzhou University, Guangzhou 510006 , China;Guangzhou Municipal Engineering Design & Research Institute Co. Ltd., Guangzhou 510060, China)
出处
《中国给水排水》
CAS
CSCD
北大核心
2019年第9期83-90,共8页
China Water & Wastewater
基金
2014年广州市属高校科研项目(1201421111)
关键词
模块化
活性污泥工艺
反硝化
模拟系统
modularization
activated sludge process
denitrification
simulation system
