Surface water quality purification device

Abstract

The invention discloses a surface water quality purification device which comprises an outer cylinder, an inner cylinder, a mixing unit, a flocculation unit, a filtering unit, an aeration unit and a membrane filtration unit, wherein the outer cylinder is a cylinder body with an open top, a protective umbrella is arranged at the top of the outer cylinder, and a blow-down pipe is arranged on the bottom surface of the outer cylinder; the inner cylinder is arranged in the outer cylinder; a filtering cavity is formed between the outer cylinder and the inner cylinder; the top of the inner cylinder is open and the bottom of the inner cylinder is provided with a precipitation unit. According to the device disclosed by the invention, an immersed membrane filtration unit is used for filtering; the effluent quality is stable, the turbidity removal effect is good, an immersed aeration device does not need to be additionally arranged, a water inlet pipe of the device and a water outlet pipe of theequipment are a same pipeline in the backwashing process, an independent backwashing pipe does not need to be arranged, and therefore the production cost is reduced, and the working efficiency is improved.

Description

technical field [0001] The invention belongs to the technical field of ground water supply, and in particular relates to a surface water quality purification device. Background technique [0002] Scale problems generally occur in groundwater supply systems, but they are also common in surface water supply systems, such as Xijiang Water Source in Guangzhou, Cihuaixin River in Fuyang, Anhui, Taoqupo Reservoir in Tongchuan, Shaanxi, etc. Partial surface water treatment adopts nanofiltration process to effectively reduce scale, but the content of calcium and magnesium ions in surface water sources, that is, the total hardness, generally does not exceed the standard. Users generally install reverse osmosis or nanofiltration household water purifiers, or purchase bottled water, or water from residential reverse osmosis water equipment as drinking water, which will intercept calcium and magnesium ions in whole or in part. For the treatment of high hardness water and the removal of...

AI Technical Summary

Problems solved by technology

[0004]Aiming at the deficiencies in the prior art, the purpose of the present invention is to provide a surface water purification device, the ultrafiltration process has high-precision separation capability, and the water produced The turbidity can be controlled within 0.1NTU. The device integrates multiple functions of mixing, flocculation, sedimentation, ultrafiltration and aeration. Utilizing the efficient and stable turbidity removal ability of the ultrafiltration membrane, the structure is cleverly arranged to solve the current problem. The filtration effect of some equipment is unstable, the turbidity of the effluent is not up to the standard, and the backwashing device is unreasonable.

Images