sewage treatment plant

Abstract

A sewage treatment device includes a frame, and n sewage treatment units connected in sequence are arranged in the frame. Each sewage treatment unit includes a shell and a partition, and the partition divides the inner cavity of the shell into disconnected ones. There are three cavities in the left, middle and right of the clapboard. The filter screen is detachably arranged on the upper part of the partition plate. Fillers and aquatic plants capable of filtering and / or adsorption are placed in the three cavities, respectively, and an aeration mechanism capable of increasing oxygen is set in the left, middle, and right cavities of each sewage treatment unit. The device is fixed on the buoy and can be installed on the water surface of the river near the sewage outlet and is in a floating state. The advantages are: low cost, easy implementation, easy implementation of modularization and standardization, and can achieve on-site interception and degradation of pollutants in sewage, making the sewage treatment device a hydrophilic platform with river beautification function.

Description

technical field [0001] The invention relates to the technical field of environmental protection, in particular to a sewage treatment device for river sewage outlets. Background technique [0002] Urban river pollution is one of the major environmental and public health problems faced by most cities in my country. The main causes of urban river pollution include: (1) The urban sewage pipe network is not perfect, causing a large amount of domestic sewage to be directly discharged into the river without treatment; (2) The surface runoff formed by urban precipitation carries a large amount of non-point source pollutants into the river course. Therefore, controlling the discharge of pollutants into rivers from the source, that is, sewage treatment, is the key to controlling river pollution and improving river water quality. [0003] Existing sewage treatment devices for river sewage outlets generally include engineering measures such as dredging, sewage interception, bank revet...

AI Technical Summary

Problems solved by technology

Due to incomplete interception or no interception measures at all, sewage is continuously discharged into rivers

Although ecological restoration measures can play a certain role in controlling river water pollution, these measures are basically methods that treat the "symptoms" rather than the "roots", and cannot fundamentally solve the problem of river pollution.

In addition, although the sewage treatment pipe project can completely solve the pollution problem caused by the direct discharge of sewage into the river, it is difficult to implement the sewage treatment plan in many urban areas, especially the old urban areas and suburban areas. That is to say, even if the sewage in these areas is intercepted, it is difficult to discharge into the sewage treatment plant for treatment

Images