Feed solid-liquid separation unit for sewage treatment and treatment device thereof

Abstract

The invention discloses an integrated treatment device for domestic sewage suitable for villages, which comprises a solid-liquid separation unit for feeding. An anaerobic treatment unit is provided at the lower part of one side of the unit, and the water inlet of the anaerobic treatment unit is connected to the water outlet of the feed solid-liquid separation unit; a vertical underflow artificial wetland and a horizontal Subsurface flow constructed wetland, and the outlet end of the anaerobic treatment unit is connected to the water inlet end of the vertical subsurface flow constructed wetland through a pipeline and a suction device installed on the pipeline, and the water outlet of the vertical subsurface flow constructed wetland is connected to the horizontal subsurface flow constructed wetland. connected to the water inlet. The invention also discloses a sewage treatment feed solid-liquid separation unit; the invention has the advantage of being able to improve the quality of sewage treatment.

Description

Technical field [0001] The present invention belongs to the technical field of sewage treatment in the field of environmental technology, in particular to a wastewater treatment village suitable solid-liquid separation feed unit and processing device. Background technique [0002] With the economic and social development and improve people's living standards, accelerating urbanization process in my country, but the number of rural population, water consumption in rural areas is increasing, large emissions, there are reports of rural sewage discharge is expected to 2020 the total could reach nearly 300 million tons. Population is concentrated in urban areas, sewage is collected and can be transported to the sewage treatment plant for processing, but the way involves a large number of collection pipe network, scattered population live less sewage in rural areas do not apply. Rural decentralized wastewater sources have dispersed, small emissions, large changes in water quality and q...

AI Technical Summary

Problems solved by technology

② Large coefficient of variation

③It is more difficult to collect

The discharge of domestic sewage in rural areas is relatively scattered, and most of them have no drainage pipe network, making it difficult to collect

④ The technical and economic foundation in rural areas is weak, lacking funds and professional technical personnel, and it is difficult to guarantee the daily operation and maintenance of sewage treatment facilities

[0005] Chinese patent application (CN105481203A) discloses a domestic sewage treatment system. In the technical solution disclosed in the patent application, the position corresponding to the outlet end of the sewage collection pipe on the pre-sedimentation tank and the overflow pipe on the pre-settling tank are adopted. A grid is set at the corresponding position of the inlet end for solid-liquid separation. This solid-liquid separation structure cannot separate solid-liquid well, and the separated solid part will still carry a large amount of liquid components, which greatly reduces the sewage treatment. ability

Chinese patent (CN204939208U) discloses a circulating domestic sewage purification system. In this patented technology, pipes are used to evenly distribute the anaerobically treated sewage at the bottom of the constructed wetland. The structure is relatively complicated and the distribution of sewage is not uniform enough, resulting in Can not play a good role in purifying sewage

Moreover, in the above-mentioned technologies, after anaerobic treatment, the sewage is sent to the constructed wetland for treatment in an anaerobic or anaerobic state. At this time, the constructed wetland cannot efficiently and thoroughly treat the sewage (adsorption, redox, microbial decomposition, nutrient absorption, etc. )deal with

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