A composite coalescing 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: 2019-02-26
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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  • A composite coalescing material for water deoiling
  • A composite coalescing material for water deoiling
  • A composite coalescing material for water deoiling

Examples

Experimental program
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Effect test

Embodiment 1

[0040]The wastewater in the wastewater mixing tank of a petrochemical enterprise in Shandong Province, after preliminary filtration, has an oil content of 1600-2000ppm. Utilize the method described in the present invention, first ultrasonic cleaning is carried out to polypropylene fiber to remove surface greasy dirt, then use the mixed solution of the sulfuric acid of 5% potassium permanganate and 0.2mol / L as initiator, combine 5% ethyl acrylate The solution undergoes graft copolymerization reaction to modify the fibers. On the basis of filtering, cleaning and drying, the modified polypropylene fiber and the metal wire are mixed in a quantitative ratio of 1:1 to make a lipophilic and hydrophobic composite fiber, and the lipophilic and hydrophobic composite fiber is combined with a hydrophilic The oleophobic glass fiber is braided in a rice-shaped pattern, the quantity ratio is 2:1, the braiding angle θ is 30 degrees, and it is woven into a 300mm composite coalescing material, ...

Embodiment 2

[0043] The oily wastewater from an oil refinery in Wuhan has an oil content of 30%-40%, a water content of 50%-60%, and solids and other components of 10%. The oil content of the waste water is 500-1800ppm after preliminary coagulation and sedimentation desilting. Utilize the method described in the present invention, first carry out supersonic cleaning to polypropylene fiber to remove surface greasy dirt, then use the mixed solution of the sulfuric acid of 5% potassium permanganate and 0.2mol / L as initiator, combine 4% ethyl acrylate The solution undergoes graft copolymerization reaction to modify the fibers. On the basis of filtering, washing and drying, the modified polypropylene fiber and the metal wire are mixed with the number ratio of 2:1 to make the lipophilic and hydrophobic composite fiber, and the lipophilic and hydrophobic composite fiber is combined with the hydrophilic The oleophobic glass fiber is braided in a rice-shaped pattern, the quantity ratio is 1:1, the...

Embodiment 3

[0046] After preliminary treatment of the oil production wastewater of an oil production plant in Heilongjiang Province, the oil content in the oily wastewater is 2000-2300ppm. Utilize the method described in the present invention, first ultrasonic cleaning is carried out to polypropylene fiber to remove surface greasy dirt, then use the mixed solution of the sulfuric acid of 5% potassium permanganate and 0.2mol / L as initiator, combine 6% ethyl acrylate The solution undergoes graft copolymerization reaction to modify the fibers. On the basis of filtering, washing and drying, the modified polypropylene fiber and the metal wire are mixed and woven at a quantitative ratio of 1:1 to obtain a lipophilic and hydrophobic composite fiber. The lipophilic and hydrophobic composite fibers and the hydrophilic and oleophobic glass fibers are braided in the shape of rice, with a ratio of 3:1 and a weaving angle θ of 25 degrees, and are woven into a water-deoiling composite coalescing filler...

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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 coalescence 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 sewage, the amount of oily sewage produced in industrial production is particularly large. If oily sewage is discharged directly without treatment, it will seriously pollute the environment. However, the interface wetting characteristics of traditional oil-water separation materials are not obvious, and the oil absorption and water resistance are weak. They also absorb a large amount of water while absorbing oil. Under such circumstances, it is particularly important to develop a new type of oil-water separation material with excellent performance and env...

Claims

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Application Information

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Patent Type & Authority Patents(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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