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Device for removing suspended matter in water

A technology for suspended solids and water removal, applied in the directions of loose filter material filters, filtration separation, gravity filters, etc. The effect of reduced concentration, high suspended solids concentration, and stable washing effect

Inactive Publication Date: 2005-03-23
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The above-mentioned moving bed filter has the following common disadvantages: 1. The washing of the filter material adopts a simple liquid-solid countercurrent method, the structure of the scrubber is unreasonable, the filter material is unevenly distributed in the scrubber, and cannot fully contact with the washing water , the cleaning water is easy to short circuit, not only the amount of cleaning water is large, but also the washing effect is difficult to guarantee, which in turn affects the quality of the effluent
2. The sewage discharged from the filter device is all or part of the filter material washing water discharged from the filter material washer. The concentration factor of suspended solids in the drainage is low, and the amount of discharged sewage is large, which is not conducive to the further treatment and utilization of suspended solids; if Circulate part of the filter material washing water back to the filter to reduce the external discharge, which will affect the quality of the filtered water

Method used

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  • Device for removing suspended matter in water
  • Device for removing suspended matter in water

Examples

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Effect test

Embodiment 1

[0028] The effluent after biochemical treatment of an oil refinery has a concentration of suspended solids of 90 mg / l and a turbidity of 60 degrees. After being treated by the filter equipment of the present invention, the concentration of suspended solids in the filtered water is reduced to 4 mg / l, the turbidity is 3 degrees, the amount of concentrated sewage discharged outside is 1.5% of the influent, and the concentration of suspended solids is 5680 mg / l. And the method of adopting the filter material scrubber to discharge the concentrated sewage keeps the concentration of suspended solids in the filtered water at 4mg / l, the amount of discharged sewage should reach 4% of the influent, and the concentration of suspended solids in the discharged water should be 2120mg / l. If the efflux is reduced to 1.5%, the suspended solids in the filtered water will increase to 15mg / l.

Embodiment 2

[0030] In the sewage of a catalyst factory, the concentration of suspended solids in the water is 130mg / l, and the turbidity is 110 degrees. The pollutants are mainly molecular sieves with fine particle diameters and silicate and other production materials. With the filtering equipment of the present invention, the concentration of suspended solids in the treated water is 4.5 mg / l, the turbidity is 2.8 degrees, the external discharge accounts for 2.5% of the treated water, and the suspended solids concentration is 5030 mg / l, which lays a good foundation for the recovery of production raw materials. Foundation. And adopt the method of filter material scrubber to discharge concentrated sewage, when keeping the concentration of suspended matter in the filtered water at 4.5mg / l, the amount of discharged sewage should reach 6% of the influent, and the concentration of suspended matter in the discharged water should be 2100mg / l. If the efflux is reduced to 2.5%, the suspended solids...

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Abstract

An apparatus for removing the suspended substance from water is a filter unit which is composed of cylindrical tank, overflow dam, water outlet tube, water inlet tube, water distributor, filtering material washer, fairing unit, filtering material distributor, cyclic filtering material lifting tube and air distributor. It features its additional suspended substance separator, between the outlet of said lifting tube and filtering material washer.

Description

technical field [0001] The invention is a water treatment device, more specifically a filter device for removing suspended matter in water. Background technique [0002] As one of the means of removing suspended solids in water, filtration is not only widely used in urban or industrial sewage advanced treatment and sewage reuse treatment, but also in urban and industrial water supply treatment ( Such as tap water, industrial fresh water, boiler feed water), circulating cooling water treatment and other processes commonly used equipment. [0003] The mechanism of the filter to remove suspended solids is mainly to use the tiny pores inside the filter bed to trap particulate pollutants in the water. Its working process includes two processes: filtration and filter material cleaning. According to different conditions such as filter material, filtration speed, water flow direction, bed depth, water flow driving force, etc., filters can be divided into many different types. Acco...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D24/16
Inventor 韩建华回军赵景霞
Owner CHINA PETROLEUM & CHEM CORP
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