Sewage and rainwater treatment system for colleges and universities

Abstract

The invention discloses a sewage and rainwater treatment system for colleges and universities. The system sequentially includes a regulation pool, a vertical flow artificial wetland, a first ecological-based artificial wetland, an ecological gravel bed, a second ecological-based artificial wetland, a disinfection tank and a water outlet tank according to a water treatment order. Every adjacent twoare connected through a sewage pipe. The vertical flow artificial wetland and a bed body of the ecological gravel bed are rectangular, two corresponding sides of the bed body are respectively provided with a water distribution channel and a water collecting channel which have rectangular cross sections, the middle of the bed body is provided with an overflow channel perpendicular to the water distribution channel, and retaining walls are distributed on the remaining two sides; water distributing pipes are distributed evenly on the vertical flow artificial wetland and the upper portion of thebed body of the ecological gravel bed, and water collecting pipes are distributed on the lower portions of the water distributing pipes. The water distributing pipes are longitudinally connected withventilating pipes. According to the sewage and rainwater treatment system for colleges and universities, the recycling of washing sewage and rainwater of the colleges and universities is achieved, andthe sewage recycling rate is improved.

Description

technical field [0001] The invention relates to the technical field of sewage and rainwater treatment, in particular to a sewage and rainwater treatment system for colleges and universities. Background technique [0002] In recent years, my country's colleges and universities are facing more and more serious water crisis. On the one hand, the enrollment scale of colleges and universities in my country is expanding year by year, the population density of colleges and universities is increasing, the green area is expanding, and the water consumption is also increasing year by year. Colleges and universities have developed into large water users in cities; The pipeline is far away, and a large amount of toilet water is directly discharged without treatment. Most of the toilet water in colleges and universities is discharged after one use, and the recycling rate is very low, which seriously pollutes the water environment and poses a serious threat to the local environment; due to...

AI Technical Summary

Problems solved by technology

On the one hand, the enrollment scale of colleges and universities in my country is expanding year by year, the population density of colleges and universities is increasing, the green area is expanding, and the water consumption is also increasing year by year. Colleges and universities have developed into large water users in cities; The pipeline is far away, and a large amount of toilet water is directly discharged without treatment. Most of the toilet water in colleges and universities is discharged after one use, and the recycling rate is very low, which seriously pollutes the water environment and poses a serious threat to the local environment; due to campus sewage greening All miscellaneous water such as flushing toilets and sprinkling roads needs to use tap water. In the case of rising water prices, water resources are greatly wasted; vigorously develop water-saving technologies, rationally use water resources, and improve campus water supply, drainage and greening. The overall planning, based on the principles, realizes the green, environmental protection and sustainable utilization of campus domestic sewage, strengthens the treatment and resource utilization of sewage in colleges and universities, and realizes the reuse of reclaimed water in campuses. The social responsibility that must be assumed is also the need for the self-development of colleges and universities

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