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Recovery processing method for discharge water of circulating water system

A circulating water system, recovery and treatment technology, applied in water/sewage multi-stage treatment, water/sludge/sewage treatment, chemical instruments and methods, etc., can solve the problem of high cost of dosing, heavy maintenance workload, filtration Insufficient material filtration and other problems, to achieve good recycling effect, easy automatic control, high comprehensive utilization effect

Inactive Publication Date: 2016-06-01
MULTIPLE GLOBAL WATER EQUIP CHINA CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The cost of dosing is high, and repeated dosing is required, the dosage and time are difficult to control, and it will cause environmental pollution when discharged at the same time
[0007] 2. Insufficient filter material filtration
[0008] Occupies a large area, low flow rate, low pressure, need to replace the filter material regularly, high cost, heavy maintenance workload

Method used

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  • Recovery processing method for discharge water of circulating water system

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Embodiment Construction

[0018] Describe in detail below in conjunction with accompanying drawing:

[0019] Such as figure 1 As shown, the static mixer [3] is a kind of high-efficiency mixing equipment without moving parts. Its basic working mechanism is to use the mixing unit fixed in the tube to change the flow state of the fluid in the tube, so as to achieve good dispersion and harmony between different fluids. Purpose of mixing well. Static mixer is an advanced unit equipment. Unlike agitator, it has no moving parts inside. It mainly uses fluid flow and internal unit to realize the mixing of various flows and the rational design of special structure. Compared with orifice column, Venturi tube, agitator, homogenizer and other equipment, static mixer has high efficiency, low energy consumption, small volume, low investment and easy continuous production.

[0020] The flocculant automatic dosing device [2] and the pH adjusting device [6] all belong to the dosing device. The dosing device is a comp...

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Abstract

The invention relates to a recovery processing method for discharge water of a circulating water system. The method can remove particles, organic matters and most salt in the discharge water of the circulating water system. The discharge water of the circulating water system is sent to a static state mixer, is fully mixed with a flocculating agent added by a medicine adding apparatus, and is filtered by a self-cleaning filter to remove precipitate and large granule impurity. The filtered water passes through a pH value adjusting apparatus, then is sent to an activated carbon filter, and enters into a nanofiltration membrane apparatus through a pressure pump. The produced water from the nanofiltration membrane can be taken as water for production, concentrated water is returned to a water inlet end of the static state mixer. For prolonging the life of the nanofiltration membrane, regular and fast flushing of the nanofiltration membrane can be set. The method has the advantages of high comprehensive utilization rate and good recovery processing effect, and the recycle-water accounts for about 97% of total water amount.

Description

technical field [0001] The invention relates to a recycling treatment method for the drainage of an open circulating water system, which can remove particulate matter, organic matter and most of the salt in the drainage of the circulating water system, has the characteristics of less discharge and good treatment effect, and belongs to the recycling treatment method of the circulating water drainage . Background technique [0002] The circulating water system is divided into two types: closed type and open type. In the absence of special process requirements, an open circulating cooling water system is commonly used. [0003] In the process of realizing the recycling of cooling water, calcium, magnesium, chlorine, sulfate ions, dissolved solids, and suspended solids in the circulating water increase accordingly, and pollutants in the air such as dust, sundries, and soluble gases can enter the circulating water. It will cause a large number of microorganisms to multiply and ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/04
Inventor 张勇进范艳萍
Owner MULTIPLE GLOBAL WATER EQUIP CHINA CO LTD
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