摘要
利用合流制排水沟渠处理污水是一项新技术。通过室内试验和实际模型试验 ,对利用合流制排水沟渠处理污水的工艺、效率、抗冲刷能力、生物载体等进行了研究 ,结果表明处理效率达到或超过一般生物膜法的水平 ,基建投资和运行费用大大降低。利用排水沟渠处理污水与传统的推流式生物氧化法有所不同 ,在内源呼吸期COD值有所上升 ,对此现象进行了理论探讨 ,并建立了COD和溶解氧变化过程数学模式 ,还对设置初次沉淀段进行了经济分析。
Using drainage canals in combined system to treat sewage is a new technology. With laboratory and practical model tests, the process, efficiencies, scouring resistance ability and biological carrier were studied. The results showed that the treatment efficiencies reached or exceeded that of conventional biofilm process. The capital and operating costs were reduced greatly. Treatment of sewage by using drainage canals was different from traditional bio-contact oxidation process with plug flow. It was observed from the tests that there existed a rise in COD value in the period of endogenous respiration. A discussion on this phenomenon was carried out and mathematical models of COD and DO variation were set up. An economic analysis on setting up a primary settling section was also presented.
出处
《中国给水排水》
CAS
CSCD
北大核心
2000年第9期12-16,共5页
China Water & Wastewater
关键词
排水沟渠
污水处理
降解
模式
drainage canals
wastewater treatment
degradation
model
