Membrane separation treatment method for high-concentration oily wastewater
A treatment method and membrane separation technology, applied in multi-stage water treatment, water/sewage treatment, neutralized water/sewage treatment, etc., can solve the problem that high-concentration oily wastewater cannot be effectively treated, the treatment method is difficult to meet the standard, and the treatment high cost
Inactive Publication Date: 2019-09-17
宁波斯蒂罗科技有限公司
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[0005] The present invention aims at the above-mentioned defects in the prior art, and proposes a membrane separation treatment method for high-concentration oily wastewater, which solves the problem that the existing high-concentration oily wastewater cannot be effectively treated at the wharf, and at the same time solves the problem of conventional The processing method is difficult to meet the standard and the problem of high processing cost
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[0015] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. The following examples are used to illustrate the present invention, but should not be used to limit the scope of the present invention.
[0016] A kind of membrane separation treatment method of high-concentration oily wastewater in the embodiment of the present invention, such as figure 1 As shown, the membrane separation treatment method of high-concentration oily wastewater is implemented by the following device, which includes: oil-water separation unit, pH adjustment system, ultrafiltration membrane separation unit, primary reverse osmosis membrane separation unit, secondary reverse osmosis membrane separation unit and three-stage reverse osmosis membrane separation unit, a pump body is provided between the oil-water separation unit and the ultrafiltration membrane separation unit, a high-pressure pum...
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The invention discloses a film separation treatment method for high-concentration oily wastewater, and relates to the technical field of wastewater treatment. The film separation treatment method specifically comprises the following steps: firstly, carrying out floating oil separation on the high-concentration oily wastewater in an oil-water separation unit, passing the remaining separated wastewater through a pH adjustment system; pumping the separated wastewater with adjusted pH value into an ultrafiltration film separation unit through a pump body for separation; pumping ultrafiltration film permeate into a primary reverse osmosis film separation unit through a high-pressure pump, pumping primary permeate into a secondary reverse osmosis film separation unit through a high-pressure pump, and pumping secondary permeate into a tertiary reverse osmosis film separation unit through a high-pressure pump; finally, collecting tertiary permeate with COD concentration reaching the receiving standard of a sewage plant in a pipe and discharging to the sewage disposal plant. The three-stage reverse osmosis film process is stable and reliable, thus ensuring that the produced water reaching the receiving standard is collected in the pipe and discharged to the sewage disposal plant, and greatly reducing the outward transportation treatment cost of the treated wastewater.
Description
technical field [0001] The invention relates to the technical field of wastewater treatment, in particular to a membrane separation treatment method for high-concentration oily wastewater. Background technique [0002] With the development of my country's national economy, the liquid chemical transportation industry is developing rapidly, so many new liquid chemical wharf projects have been built in recent years; the liquid chemical wharf wastewater mainly comes from the sewage generated during the transportation of chemical liquid cargo ships, such as washing Tanks, washing tanks, flushing pipelines, etc. The sewage not only contains chemicals that are difficult to treat biologically, such as a variety of alcohols, benzenes, esters, cleaning agents used to clean the cabin, etc. With the increase of the types of bulk liquid chemicals, the composition of wastewater is becoming more and more complex, and the concentration of pollutants is also greatly increased. Due to the inte...
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IPC IPC(8): C02F9/04
CPCC02F1/40C02F1/441C02F1/444C02F1/66C02F9/00C02F2301/08
Inventor 周宇松刘中亲
Owner 宁波斯蒂罗科技有限公司