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Oil-containing emulsified waste liquid reduction treatment system and treatment method thereof

A treatment system and treatment method technology, which is applied to the oily emulsified waste liquid reduction treatment system and its treatment field, can solve the problems of insignificant waste liquid reduction, high operating costs, and large sludge production, and achieve operational efficiency. Effects of low cost, high degree of automation, and reduced disposal costs

Pending Publication Date: 2020-08-07
CHANGZHOU WUJIN YOUBANG WATER PURIFICATION MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to overcome the defects and deficiencies of the existing oil-containing emulsion treatment method, such as large amount of sludge, high operating cost, and inconspicuous reduction of waste liquid, and provide an oil-containing emulsified waste liquid reduction treatment system

Method used

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  • Oil-containing emulsified waste liquid reduction treatment system and treatment method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] A system for reducing the amount of oil-containing emulsified waste liquid, such as figure 1 As shown, it includes raw liquid tank 1, filter 2, tubular membrane equipment 3, product water tank 4, RO equipment 5, product water tank 6, concentrated liquid tank 7, evaporation system 8, and heat exchange equipment 9.

[0048] The filter is a bag filter with a filter bag pore size of 125um; the membrane pore size of the tubular membrane device is 50nm; the RO equipment uses Dow's anti-pollution 8040 membrane, which adopts 3-stage series connection; the evaporation system adopts double-effect atmospheric pressure evaporation equipment.

[0049] The outlet of raw solution tank 1 is connected to filter 2, the outlet of filter is connected to tubular membrane equipment, the water outlet of tubular membrane equipment 3 is connected to water production tank 4, and the tubular membrane equipment, water production tank 4 is connected in series with RO water treatment system, The eff...

Embodiment 2

[0058] A system for reducing the amount of oil-containing emulsified waste liquid, such as figure 1 As shown, it includes raw liquid tank 1, filter 2, tubular membrane equipment 3, product water tank 4, RO equipment 5, product water tank 6, concentrated liquid tank 7, evaporation system 8, and heat exchange equipment 9.

[0059] The filter is a bag filter with a filter bag pore size of 50um; the membrane pore size of the tubular membrane device is 30nm; the RO equipment adopts Dow anti-pollution 8040 membrane, and adopts 3-stage series connection; the evaporation system adopts double-effect atmospheric pressure evaporation equipment.

[0060] The outlet of raw solution tank 1 is connected to filter 2, the outlet of filter is connected to tubular membrane equipment, the water outlet of tubular membrane equipment 3 is connected to water production tank 4, and the tubular membrane equipment, water production tank 4 is connected in series with RO water treatment system, The efflue...

Embodiment 3

[0069] A system for reducing the amount of oil-containing emulsified waste liquid, such as figure 1 As shown, it includes raw liquid tank 1, filter 2, tubular membrane equipment 3, product water tank 4, RO equipment 5, product water tank 6, concentrated liquid tank 7, evaporation system 8, and heat exchange equipment 9.

[0070] The filter is a bag filter with a filter bag pore size of 100m; the membrane pore size of the tubular membrane device is 10nm; the RO equipment uses Dow's anti-pollution 8040 membrane, which adopts 3-stage series connection; the evaporation system adopts double-effect atmospheric pressure evaporation equipment.

[0071] The outlet of raw solution tank 1 is connected to filter 2, the outlet of filter is connected to tubular membrane equipment, the water outlet of tubular membrane equipment 3 is connected to water production tank 4, and the tubular membrane equipment, water production tank 4 is connected in series with RO water treatment system, The effl...

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Abstract

The invention discloses an oil-containing emulsified waste liquid reduction treatment system and a treatment method thereof. The oil-containing emulsified waste liquid reduction treatment system comprises a stock solution tank, a filter, tubular membrane equipment, a water production tank, RO water treatment equipment, a water outlet tank, a concentrated liquid tank and an evaporation system. Effective separation of the oil-containing emulsified waste liquid and the wastewater in the oil-containing emulsified waste liquid can be realized through the tubular membrane equipment; the separated wastewater is subjected to multi-stage treatment by the RO water treatment equipment, so effluent can reach the standard and can be connected or recycled; and the concentrated wastewater of the RO watertreatment equipment is mixed with the separated and concentrated oil-containing emulsified waste liquid, the obtained mixture is evaporated and concentrated by the evaporation system, the evaporatedwaste oil is handled by a qualification unit, and evaporated wastewater continues to be circularly treated, so a large amount of hazardous waste oily sludge caused by direct evaporation is avoided, noextra demulsifier, flocculant or other chemical agents need to be added, efficient reduction treatment of the oily emulsified waste liquid is effectively achieved, the overall volume reduction rate of the oily emulsified waste liquid can reach 98% or above, and the treatment cost is remarkably reduced.

Description

technical field [0001] The invention relates to the technical field of emulsified waste liquid treatment, and more specifically, to a system for reducing the amount of emulsified waste liquid containing oil and a treatment method thereof. Background technique [0002] Oil-containing emulsified waste liquid is widely used in the mechanical processing industry. It has the functions of cooling, lubricating, cleaning and rust prevention. It is a high-concentration, refractory industrial waste liquid with high emulsification degree and complex chemical composition. At present, the treatment methods for oily emulsified waste liquid include heating, flocculation and sedimentation, aeration and air flotation, membrane separation and other methods. However, these methods have problems such as high process requirements, unstable effluent quality, high disposal costs, and large sludge production. [0003] At present, conventional physical and chemical methods combined with biochemical...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/10C02F101/10C02F101/20
CPCC02F9/00C02F1/001C02F1/44C02F1/441C02F1/04C02F2209/08C02F2101/20C02F2101/10
Inventor 李光辉王桂玉左选凤朱芬
Owner CHANGZHOU WUJIN YOUBANG WATER PURIFICATION MATERIALS