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Treatment process for wastewater of household appliance product degreasing process

A technology for home appliances and treatment processes, applied in the fields of water/sewage multi-stage treatment, water/sludge/sewage treatment, chemical instruments and methods, etc., to achieve the effects of compact structure, reduced impact load, and easy operation

Active Publication Date: 2014-04-23
ANHUI GREEN TITAN ENVIRONMENTAL TECH
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

However, a large amount of degreasing process wastewater is generated during its manufacturing process

Method used

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  • Treatment process for wastewater of household appliance product degreasing process
  • Treatment process for wastewater of household appliance product degreasing process
  • Treatment process for wastewater of household appliance product degreasing process

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Embodiment Construction

[0026] A treatment process for waste water in the degreasing process of household appliances, comprising the following steps:

[0027] (1) Wastewater from the degreasing process of home appliances is divided into pottery, degreasing mother liquor and other comprehensive wastewater; pottery and degreasing mother liquor are first discharged into the mother liquor storage pool 1 for centralized collection, and then pumped into the vortex in batches and evenly by water pumps every day Reactor 2, add lime water and polyacrylamide to the vortex reactor 2 for reaction, and the supernatant after the reaction is discharged into the oil separation adjustment tank 4; other comprehensive wastewater first passes through the artificial grid 3 to intercept the waste water in the sewage The floating matter and impurities will then enter the oil separation adjustment pool 4 (the front end of the oil separation adjustment pool 4 is equipped with an accident pool 5, when an accident occurs in the...

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Abstract

The present invention discloses a treatment process for wastewater of a household appliance product degreasing process. According to the treatment process, wastewater of a household appliance product degreasing process enters an oil isolation adjustment pool to isolate part of the surface floating oil, and the mixed wastewater enters a demulsification oil isolation pool to carry out demulsification on emulsified oil in the wastewater; the oil-isolated wastewater enters coagulation and precipitation integrated equipment to carry out a coagulation reaction, and the pH value is adjusted to more than 12 so as to remove phosphates, suspended solids and organic matters; the mixed solution after the coagulation reaction is subjected to precipitation, the obtained supernatant sequentially flows into a neutralization reaction pool and a cavitation air flotation system, and the wastewater is subjected to secondary phosphorus and oil removal through aeration; and the wastewater treated by the cavitation air flotation system sequentially flows into a clear water pool and a multi-media filter so as to be filtered, and the filtered clear water is subjected to standard discharge so as to be discharged into the municipal drainage pipeline network through the standardization discharge port. According to the present invention, the removal effects on phosphates and other pollution factors in the wastewater of the degreasing process are good, the treated wastewater can achieve the comprehensive sewage discharge standard, and enterprises can easily achieve wastewater reuse.

Description

[0001] technical field [0002] The invention relates to the field of treatment of household appliance manufacturing industrial wastewater, in particular to a treatment process for wastewater in the degreasing process of household appliances. Background technique [0003] Household appliances liberate people from heavy, trivial and time-consuming housework, create a more comfortable and beautiful living and working environment that is more conducive to physical and mental health, and provide rich and colorful cultural and entertainment conditions. necessities of life. However, a large amount of degreasing process wastewater is produced during its manufacturing process. The wastewater comes from the degreasing wastewater of the electroplating line. The degreasing wastewater contains oil and a small amount of emulsion, and the temperature of the wastewater is relatively high. The common point of degreasing wastewater is that the content of alkali and inorganic salts is r...

Claims

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Application Information

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IPC IPC(8): C02F9/04
Inventor 姚明胡召堂赵晓刚李双建
Owner ANHUI GREEN TITAN ENVIRONMENTAL TECH
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