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High polymer resin, and apparatus and method for removing oil by using it

A technology of polymer resin and oil-water separation device, which is applied in the field of coalescing materials, can solve the problems of oil pollution that cannot be removed, the oil content of sewage stock solution is limited, and the preparation process of oil-removing resin is complicated, and achieves simple preparation process and extended service life. Effect

Active Publication Date: 2014-10-08
NINGBO ZHENGGUANG RESIN CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the large flow rate of industrial wastewater, there is still a large amount of oil stains that cannot be removed due to the oil removal rate of 99% and the oil recovery rate of 90%, and the preparation process of the oil removal resin is relatively complicated, which is limited by the oil content of the sewage stock solution

Method used

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  • High polymer resin, and apparatus and method for removing oil by using it
  • High polymer resin, and apparatus and method for removing oil by using it
  • High polymer resin, and apparatus and method for removing oil by using it

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] The following part of this example describes a polymeric resin:

[0041] The polymer resin is made by the following methods:

[0042]Step 1, mixing 10 kg of cross-linked styrene-based gel-type strongly acidic cation exchange resin with a degree of cross-linking of 3 and 10 kg of water, adjusting the pH to 8 with sodium hydroxide;

[0043] Step 2, the product of step 1 is heated up to 60°C;

[0044] Step 3, add cetyltrimethylammonium chloride 50g to the product of step 2, and keep warm for 3 hours;

[0045] Step 4, washing and discharging the product of Step 3, collecting the final product with a particle size of 0.3 mm to 1.25 mm to obtain a polymer resin.

[0046] The following part of this example describes an oil removal device:

[0047] Such as figure 1 , 3 As shown, the degreasing device is composed of agglomerator 10, resin bed 11, oily sewage inlet 12, oily sewage outlet 13, screen 14, resin loading port 15, resin unloading port 16, water cap 17, crown 18, p...

Embodiment 2

[0063] The degreasing device and degreasing method used in this embodiment are the same as those in Embodiment 1, the difference lies in the structure of the oil-water separation device and the preparation method of the polymer resin.

[0064] Such as figure 2 , 4 , 5, the treated water inlet 21 of the oil-water separation device 20 is connected to the oily sewage outlet 13 through the link pipeline 44, the treated water inlet 21 is arranged at the middle and lower part of the oil-water separator 20, and the end of the pipeline of the treated water inlet 21 is provided with a water distributor 43. There is a porous oil-water isolation plate 26 under the water distributor 43. The porous oil-water isolation plate 26 is lined with carbon steel rubber, the thickness of the plate is 20-30 mm, the diameter of the hole is 20 mm, the diameter of the maintenance manhole 42 is 400 mm, and the lower part is supported by 10 channel steel rack to fix. An air inlet pipe 45 is arranged on...

Embodiment 3

[0073] The degreasing device used in this embodiment and the degreasing method are the same as in embodiment 1 or embodiment 2, except that the polymer resin is made by the following method:

[0074]Step 1, mixing 10 kg of cross-linked styrene-based gel-type strongly acidic cation exchange resin with a degree of cross-linking of 5 with 10 kg of water, adjusting the pH to 8 with sodium hydroxide;

[0075] Step 2, the product of step 1 is heated up to 70°C;

[0076] Step 3, add octadecyltrimethylammonium chloride 70g in the product of step 2, keep warm for 5 hours;

[0077] Step 4, washing and discharging the product of Step 3, collecting the final product with a particle size of 0.3 mm to 1.25 mm to obtain a polymer resin.

[0078] Oil removal according to the above method is not limited by oil content and oil type, the maximum oil content can reach 1000mg / L, the oil removal rate is above 99.5%, and the oil recovery rate reaches 96.5%. The resin needs to basically fill the re...

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Abstract

The invention relates to an oil-containing wastewater oil removal technology, and especially discloses a coalescence material used in a coalescence process oil removal technology, an oil removal method and an oil removal apparatus. The purposes of the invention comprise provision of a polymer resin simple to prepare, provision of an oil removal apparatus using the polymer resin and having a high oil removal rate and obvious energy and water saving benefits, and provision of a high-oil-content wastewater oil removal method using the above synthetic resin and the oil removal apparatus. The polymer resin is highly stable and firm in a subsequently introduced lipophilic group, can be repeatedly used, and is simple to prepare without amination. The oil removal apparatus comprises an aggregation device and an oil-water separating device, and also comprises a differential pressure detection device, and a resin layer is loosened through the automatic control of a pressure inductor in order to reduce the operation differential pressure; and the upper end of the aggregation device is provided with a wash water inlet, and the lower end of the aggregation device is provided with a wash water outlet.

Description

technical field [0001] The invention relates to oil removal technology for oily wastewater, in particular to a coalescence material in the coalescence oil removal technology, and an oil removal method and device. Background technique [0002] Oily wastewater mainly includes oilfield wastewater, wastewater from refineries and petrochemical plants, ballast water, tank washing water, engine room water of tankers, cleaning water of tankers, etc. This is the main source of environmental oil pollution, especially marine oil pollution (such as oil pollution). [0003] The current oil removal technologies for oily wastewater mainly include air flotation, membrane separation, adsorption, biochemical and coalescence methods. The air flotation method and the biochemical method will produce secondary pollution during the treatment process, and follow-up processes are required, and the oil content of the effluent is still relatively high; the membrane separation method has the problem o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F8/44B01J20/26B01J20/30C02F1/28C02F1/40
Inventor 沈建华徐斌钟轶泠郭琰辉楼政
Owner NINGBO ZHENGGUANG RESIN CO LTD
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