Feedstock solid-liquid separation unit for sewage treatment, and treatment apparatus thereof

Abstract

The invention discloses a domestic sewage integrated treatment apparatus suitable for villages. The apparatus comprises a feedstock solid-liquid separation unit, and the feed solid-liquid separation unit is provided with a feeding port and is used for being connected with a sewage inlet pipeline; an anaerobic treatment unit is arranged at the corresponding position of the lower part of one side ofthe feedstock solid-liquid separation unit, and the water inlet end of the anaerobic treatment unit is connected with the water outlet end of the feedstock solid-liquid separation unit; and a vertical subsurface flow type constructed wetland and a horizontal subsurface flow type constructed wetland are arranged right above the anaerobic treatment unit, the water outlet end of the anaerobic treatment unit is connected with the water inlet end of the vertical subsurface flow type constructed wetland through a pipeline and a suction device arranged on the pipeline, and the water outlet end of the vertical subsurface flow type constructed wetland is connected with the water inlet end of the horizontal subsurface flow type constructed wetland. The invention further discloses the feedstock solid-liquid separation unit for sewage treatment. The sewage treatment quality can be improved in the invention.

Description

Technical field [0001] The invention belongs to the technical field of sewage treatment in the technical field of environmental protection, and specifically relates to a sewage treatment feed solid-liquid separation unit and a treatment device thereof suitable for villages. Background technique [0002] With the economic and social development and the improvement of people’s living standards, the process of urbanization in my country has been accelerating. However, the number of rural populations is large, and the water consumption in rural areas is also increasing. The total amount of discharge is large. Reports show that my country’s rural sewage discharge is expected by 2020 The total amount can reach nearly 30 billion tons. In urban areas, the population is concentrated, and sewage can be collected and transported to the sewage treatment plant for treatment. However, this method involves a large number of collection pipe networks and is not suitable for rural areas where the p...

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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