The Study Of CASS Process Of Wastewater Treatment For Residential Community

With the development of industry and our city, the absence of water resource has became a serious problem we have to face. The amount of water that we have used and discharged is increasing everyday. Developing the system of wastewater reuse in residential area and reclaiming the wastewater of nearby building is a mathed which can both save the water resource and reduce the pollution of the environment. Nowadays, one of the main problems about the reuse of wastewater is economic　reason,therefore, it's necessary to lower the price of the wastewater treatment facilities and to reduce the cost of operation. Though, the cyclic activated sludge system compares to traditional actived sludge method have some economic advantage, but there still has some drawback, in addition, the cost of treatment is still high. So, its necessity to change some part of the cyclic activated sludge system to overcome it's original weakness, and the change would help to improve reactor's valid capacity utilization and to reduce the cost of the facilities and operation.　 When the parameters of the system which some part of the process was changed were set,we could design the form and size of the reactor.The prototype of reactor is contracted into model of reactor as some certain rate.The purpose of this experiment is to study the settle conditions of the cyclic activated sludge system which has been altered. And we also study the result and efficiency of treatment, so as to offer some data for actual engineering. The result of this experiment show this way is efficiently in the treatment of wastewater.In addition,by the way of setting appropriate parameter,designing the size of reactor according to actual field circumstance,this mathed can improve treatment efficacy obviously and reduce the cost of wastewater treatment.