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Emulsion wastewater treatment system and process

A waste water treatment system and technology for waste water treatment, which are used in cutting fluid waste water, machine tools, emulsions produced by hardware processing, emulsion waste water treatment systems, and emulsion waste water treatment technology fields. Easy to block and other problems, to achieve the effect of compact equipment process, low operating cost and cost saving

Active Publication Date: 2016-09-21
ZHEJIANG HUANYAO ENVIRONMENTAL CONSTR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention aims at the disadvantages of complex process, high operating cost and easy clogging of membrane pores in the prior art, and provides an emulsion wastewater treatment system and its treatment process with reduced operating cost, simple process flow, high treatment efficiency and up to standard discharge

Method used

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  • Emulsion wastewater treatment system and process
  • Emulsion wastewater treatment system and process
  • Emulsion wastewater treatment system and process

Examples

Experimental program
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Effect test

Embodiment 1

[0025] An emulsion wastewater treatment system, comprising a water collection well, the water collection well is connected with a regulating tank through a lifting pump, a liquid level gauge and a flow meter are arranged in the regulating pond, and the regulating pond is connected with a demulsification air flotation tank through a pipeline, and a demulsification air flotation tank is installed in the demulsification air flotation tank There are coagulation reaction area, contact area and separation area. The demulsification air flotation tank is connected to the catalytic oxidation tank through pipelines. The catalytic oxidation tank is equipped with pH controller and ORP controller. The catalytic oxidation tank is connected to the coagulation sedimentation tank through pipelines. The coagulation sedimentation tank is equipped with a pH adjustment area, a coagulation area, and a sedimentation area. The coagulation sedimentation tank is connected to the A / A / O biochemical pool th...

Embodiment 2

[0036] The emulsion wastewater treatment process comprises the following steps:

[0037] Step 1: Collect the emulsion wastewater into the water collection well, and the water from the water collection well enters the adjustment tank to effectively adjust the water quality and quantity of the emulsion wastewater, reduce the impact of the emulsion wastewater on the subsequent treatment facilities, reduce its impact load, and adjust The residence time in the pool is 8 hours. Part of the free floating oil in the waste water is concentrated into the sludge through the oil slick collection pipe, and the waste water after adjusting the water quality and water volume enters the demulsification air flotation tank, and a demulsifier is added in the demulsification air flotation tank. The demulsifier is Calcium sulfate, the dosage of calcium sulfate is 15mg / L. In addition, add coagulant PAC and coagulant aid PAM, the dosage of PAC is 18mg / L, and the dosage of PAM is 1.2mg / L. Pollutants ...

Embodiment 3

[0042] The emulsion wastewater treatment process comprises the following steps:

[0043] Step 1: Collect the emulsion wastewater into the water collection well, and the water from the water collection well enters the adjustment tank to effectively adjust the water quality and quantity of the emulsion wastewater, reduce the impact of the emulsion wastewater on the subsequent treatment facilities, reduce its impact load, and adjust The residence time in the pool is 7 hours. Part of the free floating oil in the waste water is concentrated into the sludge through the oil slick collection pipe, and the waste water after adjusting the water quality and water volume enters the demulsification air flotation tank, and a demulsifier is added in the demulsification air flotation tank. The demulsifier is Magnesium sulfate, the dosage of magnesium sulfate is 12mg / L. In addition, add coagulant PAC and coagulant aid PAM, the dosage of PAC is 20mg / L, and the dosage of PAM is 1.5mg / L. Polluta...

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Abstract

The invention relates to the technical field of water treatment and discloses an emulsion wastewater treatment system. The emulsion wastewater treatment system comprises a water collection well, an adjusting tank, an emulsion breaking air floating tank, a catalytic oxidation tank, a coagulation precipitation tank, an A / A / O biochemical tank and a secondary sedimentation tank, which are connected through a pipeline in sequence. The invention further discloses an emulsion wastewater treatment process, comprising the following steps: collecting emulsion wastewater into the water collection well; enabling output water of the water collection well to enter the adjusting tank; enabling output water of the adjusting tank to enter the emulsion breaking air floating tank; enabling output water of the emulsion breaking air floating tank to enter the catalytic oxidation tank; enabling output water of the catalytic oxidation tank to enter the coagulation precipitation tank; enabling output water of the coagulation precipitation tank to enter the A / A / O biochemical tank and enabling output water of the A / A / O biochemical tank to enter the secondary sedimentation tank. By combining a physical-chemical method and a biochemical method, the emulsion wastewater treatment system and process have the advantages of high treatment efficiency, simple process flow, low operation cost and the like.

Description

technical field [0001] The invention relates to the technical field of water treatment, in particular to an emulsion wastewater treatment system, and also to an emulsion wastewater treatment process, especially suitable for emulsion and cutting fluid wastewater produced by machine tools and hardware processing. Background technique [0002] Emulsion wastewater mainly comes from the discharge water after the recycling of preservatives, lubricants and coolants in the process of mechanical processing and metal surface treatment. It is a common wastewater generated in factory production. The wastewater is characterized by high concentration of organic matter and high oil content. , high chroma, intermittent discharge, small amount, but high pollution degree, if the discharge of emulsion wastewater is not properly treated, it will cause serious environmental pollution. [0003] At present, the commonly used emulsion treatment processes in China are: (1) The combination of physica...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/14
Inventor 黄幸杨洋周晓光廖诚孙娟
Owner ZHEJIANG HUANYAO ENVIRONMENTAL CONSTR
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