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Composite coalescence material for water deoiling

A composite coalescence and deoiling technology, applied in the field of water treatment, to achieve huge benefits and reduce treatment costs

Active Publication Date: 2017-06-13
EAST CHINA UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in order to further optimize the oil-water separation effect in the industry and improve economic benefits, the polypropylene material itself can no longer meet the requirements

Method used

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  • Composite coalescence material for water deoiling
  • Composite coalescence material for water deoiling
  • Composite coalescence material for water deoiling

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040]The wastewater in the wastewater mixing tank of a petrochemical enterprise factory in Shandong Province, after preliminary filtration, has an oil content of 1600-2000ppm. Using the method of the invention, firstly, ultrasonic cleaning is performed on polypropylene fibers to remove oil stains on the surface, and then a mixed solution of 5% potassium permanganate and 0.2mol / L sulfuric acid is used as an initiator, combined with 5% ethyl acrylate The solution is subjected to graft copolymerization to modify the fibers. On the basis of filtration, cleaning and drying, the modified polypropylene fibers and metal wires are mixed in a ratio of 1:1 to make lipophilic and hydrophobic composite fibers, and the lipophilic and hydrophobic composite fibers are mixed with hydrophilic The oleophobic glass fibers are woven according to the rice shape, the quantity ratio is 2:1, the weaving angle θ is 30 degrees, and the 300mm composite coalescing material is woven, and then the wastewat...

Embodiment 2

[0043] The oily wastewater from a refinery in Wuhan has an oil content of 30%-40%, a moisture content of 50%-60%, and solids and other components of 10%. The oil content of the wastewater after preliminary coagulation, sedimentation and desliming is 500-1800ppm. Using the method of the invention, firstly, ultrasonic cleaning is performed on polypropylene fibers to remove oil stains on the surface, and then a mixed solution of 5% potassium permanganate and 0.2mol / L sulfuric acid is used as an initiator, combined with 4% ethyl acrylate The solution is subjected to graft copolymerization to modify the fibers. On the basis of filtration, cleaning and drying, the modified polypropylene fibers and metal wires are mixed in a ratio of 2:1 to make lipophilic and hydrophobic composite fibers, and the lipophilic and hydrophobic composite fibers are mixed with hydrophilic The oleophobic glass fibers are woven according to the rice shape, the quantity ratio is 1:1, the weaving angle θ is ...

Embodiment 3

[0046] After preliminary treatment of the oil extraction wastewater from an oil extraction plant in Heilongjiang Province, the oil content in the oily wastewater is 2000-2300 ppm. Using the method of the invention, firstly, ultrasonic cleaning is performed on polypropylene fibers to remove surface oil stains, and then a mixed solution of 5% potassium permanganate and 0.2mol / L sulfuric acid is used as an initiator, combined with 6% ethyl acrylate The solution is subjected to graft copolymerization to modify the fibers. On the basis of filtration, cleaning and drying, the modified polypropylene fibers and metal wires are mixed and weaved in a ratio of 1:1 to obtain lipophilic and hydrophobic composite fibers. The lipophilic and hydrophobic composite fibers and the hydrophilic and oleophobic glass fibers are woven according to the rice shape, the quantity ratio is 3:1, the weaving angle θ is 25 degrees, and the weaving is a water-degreasing composite coalescing filler. The 280mm...

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Abstract

The invention relates to the technical field of water treatment, and particularly relates to a composite coalescence material for water deoiling prepared using a specific method. The composite coalescence material is prepared by the following steps: carrying out ultrasonic cleaning on polypropylene fibers to remove surface grease, carrying out graft copolymerization by combining a mixed solution of potassium permanganate and sulfuric acid as an initiator with an ethyl acrylate solution so as to modify the fibers, wherein the surface roughness of the modified fibers is increased, and meanwhile, the lipophilicity and hydrophobicity of the fibers are increased; then carrying out hybrid braiding on the modified polypropylene fibers and 304 stainless steel metal wire in a certain proportion, so as to form oleophylic and hydrophobic composite fibers; and weaving the composite fibers in a *-shaped weaving manner, so as to obtain the composite coalescence material for water deoiling. The effective contact area between the composite coalescence material and liquid is greatly increased, and liquid can be effectively coalesced and can effectively grow, so that the oil-water separation purpose is achieved.

Description

technical field [0001] The invention relates to the technical field of water treatment, in particular to a composite coalescing material for water deoiling. Background technique [0002] Oily sewage is a source of pollution with a wide range of sources. Industry, agriculture, and transportation will produce a large amount of oily sewage, and domestic sewage also contains a large amount of oil. Among these sources of oily wastewater, the amount of oily wastewater produced in industrial production is particularly large. If oily sewage is directly discharged without treatment, it will seriously pollute the environment. However, the interface wetting characteristics of traditional oil-water separation materials are not obvious, the oil absorption and water resistance are weak, and a large amount of water is also absorbed while absorbing oil, so the separation efficiency is low, which affects the effect of oil-water separation. Under this circumstance, it becomes particularly i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D17/022D06M11/50D06M14/10
CPCB01D17/02D06M11/50D06M14/10D06M2101/20D06M2200/12
Inventor 白志山揭奉平古文全陈立猛
Owner EAST CHINA UNIV OF SCI & TECH
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