Processing technology for waste emulsified liquid and machining wastewater

A treatment process and machining technology, applied in the field of waste emulsion and machining wastewater treatment technology, can solve the problems of polluting water bodies, deteriorating water quality, affecting the survival of fish and other aquatic animals, etc.

Inactive Publication Date: 2013-11-20
SUZHOU INDAL PARK HESHUN ENTERPRISE ENVIRONMENTAL PROTECTION SERVICE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This type of wastewater mainly contains emulsion, grease, engine oil, surfactants, etc., but because there is a stable film on the droplet interface in the above-mentioned waste emulsion and wastewater, oil and water are not easy to separate
[0003] For this reason, the above-mentioned discarded emulsion and waste water need to undergo a series of treatments before being discharged into nature, otherwise they will pollute the water body if they are directly discharged into the natural

Method used

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Embodiment Construction

[0015] The treatment process of waste emulsion and mechanical processing wastewater of the present invention includes pretreatment process, lime milk treatment process, pH value adjustment process, hydrolysis acidification process, aerobic treatment process, solid-liquid separation process and sludge treatment process in sequence along the treatment sequence craft.

[0016] The pretreatment process is mainly as follows: firstly, the sewage to be treated is sent into the regulating tank, and then the sewage to be treated in the regulating tank is sent to the demulsification reaction tank by a pump, so that the sodium hydroxide solution added in the demulsification reaction tank is mixed with the to-be-treated sewage The sewage is fully mixed; then the mixed sewage is sent to the integrated air flotation device for descum treatment, the treated sewage is sent to the intermediate pool for standby, and the separated scum is sent to the sludge thickening tank.

[0017] Oil and wate...

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Abstract

The invention discloses a processing technology for waste emulsified liquid and machining wastewater. The processing technology comprises a pre-treatment process, a lime milk treatment process, a pH value adjustment process, a hydrolysis-acidification process, an aerobic treatment process, a solid-liquid separation process and a sludge treatment process successively along a treatment sequence. By adopting a series of treatment of the above pre-treatment process, the lime milk treatment process, the pH value adjustment process, the hydrolysis-acidification process, the aerobic treatment process, the solid-liquid separation process and the sludge treatment process, the finally obtained processed water discharged to nature meets a standard completely; and mud in sewage can be separated out, to realize classified discharge.

Description

technical field [0001] The invention belongs to the technical field of environmental protection equipment, and in particular relates to a treatment process for waste emulsion and mechanical processing wastewater. Background technique [0002] In the machining industry, emulsions are used to cool workpieces, so a pile of waste gas emulsions and waste water mixed with grease and engine oil will be generated. This type of wastewater mainly contains emulsion, grease, engine oil, surfactants, etc., but since there is a stable film on the droplet interface in the above-mentioned discarded emulsion and wastewater, oil and water are not easy to separate. [0003] For this reason, the above-mentioned discarded emulsion and waste water need to undergo a series of treatments before being discharged into nature, otherwise they will pollute the water body if they are directly discharged into the natural water body, causing the water body to lack oxygen and affecting the survival of fish ...

Claims

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Application Information

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IPC IPC(8): C02F9/14C02F11/12C02F1/24C02F1/66
Inventor 何金彬许怡
Owner SUZHOU INDAL PARK HESHUN ENTERPRISE ENVIRONMENTAL PROTECTION SERVICE
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