Integrated disposal technology for waste emulsion liquid, electroplating wastewater and landfill leachate

A technology for electroplating wastewater and waste emulsion, which is applied in water/sewage multi-stage treatment, water/sludge/sewage treatment, chemical instruments and methods, etc., can solve the problems of low cost, low dosage, and poor oil quality. To achieve the effect of compact equipment and low investment

Active Publication Date: 2014-05-28
QINGDAO NEW WORLD ENVIRONMENT PROTECTION CO LTD
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[0006] The coacervation method has the characteristics of le

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  • Integrated disposal technology for waste emulsion liquid, electroplating wastewater and landfill leachate
  • Integrated disposal technology for waste emulsion liquid, electroplating wastewater and landfill leachate

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[0028] Such as figure 1 with figure 2 As shown, the integrated disposal technology of waste emulsion, electroplating wastewater, and landfill leachate of the present invention includes the following steps:

[0029] 1) The wastewater to be treated is lifted into the demulsification reactor through a water pump, and sulfuric acid is added through the dosing device for acidification treatment. The wastewater appears milky yellow and turbid. After acidification, steam is used to heat up the wastewater in the kettle, and a certain amount of sulfuric acid is added at the same time. iron;

[0030] 2) When the temperature of the wastewater rises to about 80℃, the emulsified state of the wastewater will be broken. Keep the temperature unchanged. Adjust the pH of the wastewater to about 9-10 by adding lime milk solution. Ferrous hydroxide floc deposits appear in the water body, and PAM is further added. Coagulant flocculates the water body thoroughly, making the wastewater further demulsif...

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Abstract

The invention discloses an integrated disposal technology for waste emulsion liquid, electroplating wastewater and landfill leachate. The integrated disposal of the waste emulsion liquid, electroplating wastewater and landfill leachate can be implemented by utilizing demulsification, oxidation pre-treatment and biological treatment. According to the integrated disposal technology for waste emulsion liquid, electroplating wastewater and landfill leachate, provided by the invention, the demulsification of various waste emulsion liquid with high COD can be implemented, the waste emulsion liquid, the electroplating wastewater and the landfill leachate can be disposed in the same disposal facility to reach the emission standard, the equipment is compact, and the investment is low.

Description

technical field [0001] The invention relates to a comprehensive treatment technology for waste emulsion, electroplating wastewater and landfill leachate, belonging to the technical field of hazardous waste treatment. Background technique [0002] Emulsion wastewater is a common wastewater produced in factory production, which is characterized by a wide variety, COD cr The concentration of oil content is high, and the treatment is difficult; the concentration of metal ions in electroplating wastewater is high; the leachate of landfill site is difficult to degrade COD, and the content of ammonia nitrogen is high; the existing disposal technology is mostly used for waste emulsion, electroplating wastewater, and landfill leachate Separate disposal, the investment is relatively high. [0003] In the prior art, general demulsification treatments include salting-out method, coagulation method, acidification method, mixing method and the like. [0004] The salting-out method is to...

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Application Information

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IPC IPC(8): C02F9/14
Inventor 韩清洁胡玖坤
Owner QINGDAO NEW WORLD ENVIRONMENT PROTECTION CO LTD
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