A comprehensive treatment technology for waste emulsion, electroplating wastewater and landfill leachate

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

Active Publication Date: 2016-04-06
QINGDAO NEW WORLD ENVIRONMENT PROTECTION CO LTD
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  • Abstract
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AI Technical Summary

Problems solved by technology

[0006] The coacervation method has the characteristics of less dosage and low cost, but the oil quality is generally poor

Method used

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  • A comprehensive treatment technology for waste emulsion, electroplating wastewater and landfill leachate
  • A comprehensive treatment technology for waste emulsion, electroplating wastewater and landfill leachate

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Embodiment Construction

[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. The coagulant flocculates the water body thoroughly, so that the wastewater is further ...

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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, and belongs to the technical field of hazardous waste treatment. Background technique [0002] Emulsion wastewater is a common wastewater produced in factory production. It is characterized by a wide variety of COD cr The oil content is high and the treatment is difficult; the concentration of metal ions in the electroplating wastewater is high; the landfill leachate is difficult to degrade COD and the content of ammonia nitrogen is high; the existing disposal technology is mostly for waste emulsion, electroplating wastewater, and landfill leachate For separate disposal, the investment is relatively high. [0003] In the prior art, general demulsification treatments include salting-out, coagulation, acidification, and mixing methods. [0004] The salting-out method is to add electrolyte to the waste emulsion to produce a strong hy...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F9/14
Inventor 韩清洁胡玖坤
Owner QINGDAO NEW WORLD ENVIRONMENT PROTECTION CO LTD
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