Rainwater oil separation and sedimentation device

Abstract

The invention provides an oil separating and desilting device for rainwater. The oil separating and desilting device comprises a primary treatment device, a secondary treatment device and desilting pipelines arranged between the primary treatment device and the secondary treatment device, wherein the primary treatment device is connected with an upstream pipeline, and the secondary treatment device is connected with a downstream pipeline. The oil separating and desilting device further comprises a porose partition plate arranged in the primary treatment device and a solid partition plate arranged in the second treatment device, and the height from the bottom edge of the solid partition plate to the bottom of the secondary treatment device is larger than that from the bottom edge of the porose partition plate to the bottom of the primary treatment device. According to the oil separating and desilting device for rainwater, as the porose partition plate and the solid partition plate are arranged in the primary treatment device and the secondary treatment device to achieve oil separating and desilting at the same time, the device has multiple functions, the number of arranged devices is reduced, and therefore cost is reduced; the first pipeline and the second pipeline are vertically arranged between the primary treatment device and the secondary treatment device to form a double-layer sediment channel, the horizontal flow rate of desilting is reduced, and the desilting efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of rainwater collection and treatment, in particular to a rainwater oil separation and sand settling device. Background technique [0002] my country is seriously short of water resources, the water environment is seriously unbalanced, and urban rain and flood disasters occur frequently. As the main form of natural water cycle, rainwater is close to saturation in dissolved oxygen, low in calcium content, and low in total hardness. It can be used for domestic or industrial use after simple treatment. The use of rainwater can not only alleviate the shortage of water resources, but also alleviate social problems such as urban waterlogging. Therefore, as one of the three non-traditional water sources, rainwater has attracted more and more attention from the society and relevant departments. [0003] However, due to the influence of roads, squares, roofs and even airborne dust, the originally clean natural rainf...

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Problems solved by technology

[0003] However, due to the influence of roads, squares, roofs and even airborne dust, the originally clean natural rainfall is rich in a large number of impurities and pollutants, resulting in poor water quality in the early stage

Such water quality not only affects rainwater collection and storage, but also increases the production cost of rainwater subsequent treatment

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