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Industrial sewage processing unit and industrial sewage process method

A technology for industrial sewage and treatment equipment, which is applied in the direction of flotation water/sewage treatment, oxidized water/sewage treatment, multi-stage water/sewage treatment, etc. It can solve the problem of reducing the efficiency of municipal sewage treatment systems, affecting the economic development of small and medium-sized enterprises, Solve problems such as long time to achieve the effect of improving the sorting efficiency of the device, short reaction time and low operating cost

Active Publication Date: 2008-11-12
SHANGHAI PHICHEM MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The sewage discharged by these enterprises has become the main source of pollution. These pollution sources not only pollute the environment, reduce the efficiency of the municipal sewage treatment system, but also seriously affect the economic development of these small and medium-sized enterprises.
Although large enterprises have their own sewage treatment facilities for primary and secondary treatment of wastewater, these sewage treatment facilities also have disadvantages such as large systems, large capital investment, high operating costs, and long treatment time.

Method used

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  • Industrial sewage processing unit and industrial sewage process method
  • Industrial sewage processing unit and industrial sewage process method
  • Industrial sewage processing unit and industrial sewage process method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] Embodiment 1 (treatment of oily sewage)

[0045] Oily sewage with 4.5m 3 / h flow pumped into the drug mixing device 1, the FeCl 3 Coagulant (FeCl 3 (purchased from Wenzhou Tiansheng Electrochemical Co., Ltd.) inject 5 to 10 mg per liter of oily sewage into the water pipeline and mix with the oily sewage. The mixed solution enters the first-stage U-shaped flocculation mixing pipe 2 (a), And stay for 1 to 2 minutes. The polyacrylamide flocculant (polyacrylamide purchased from ALLIED COLLLOIDS company in the United States) was remixed with the sewage discharged from the first-stage U-shaped flocculation slurry pipe 2 (a) at an amount of 10 mg per liter of oily sewage. After mixing, it enters the second-stage U-shaped flocculation slurry mixing pipe 2 (b). The sewage after pulping is injected into the hydrocyclone aeration decontamination device 3 in a tangential direction, and at the same time, compressed air with a pressure of 68.9kpa is injected from the microporous ...

Embodiment 2

[0049] Embodiment 2 (the air stripping process that contains dichloromethane wastewater) (Air Stripping)

[0050] The sewage containing methylene chloride is directly pumped into the HAD decontamination device 3 at a flow rate of 70L / min, and the compressed air is removed by hydrocyclone aeration at a flow rate of 1850L / min, 3750L / min, 3936L / min, and 5000L / min respectively. The microporous air disperser of the dirty container 3 is injected, and the organic volatile methylene chloride leaves the liquid phase with the air, and the removal rate increases with the increase of the air flow rate, and the volatilized organic matter is absorbed by an absorption box equipped with activated carbon. The following table 2 is the actual detection result of dichloromethane before and after the treatment of the sewage containing dichloromethane in the present embodiment:

[0051] Table 2.

[0052]

Embodiment 3

[0053] Embodiment 3 (treatment of printing and dyeing wastewater)

[0054] Contains printing and dyeing sewage in 2m 3 The flow rate per hour is pumped into the dosing mixing device 1, and the pH is adjusted to 2.5-3 with hydrochloric acid (hydrochloric acid from Hebei Donghao Chemical Co., Ltd.), and the mixed solution enters the first-stage U-shaped flocculation mixing pipe 2 (a ), and stay for 1 to 2 minutes. The polyacrylamide flocculant (polyacrylamide purchased from ALLIED COLLLOIDS in the United States) was remixed with the sewage discharged from the first-stage U-shaped flocculation mixing pipe 2 (a) at an amount of 20 mg per liter of printing and dyeing sewage. After mixing, it enters the second-stage U-shaped flocculation slurry mixing pipe 2 (b). The sewage after pulping is injected into the hydrocyclone aeration decontamination device 3 in a tangential direction, and at the same time, the compressed air with a pressure of 68.9kpa is injected from the microporous ...

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Abstract

The invention discloses an industrial sewage treatment device, in particular to a uniquely-developed compact, high-efficient and movable sewage treatment device by using a hydrocyclone aeration decontaminatorHAD (Hydrocyclone Aeration Decontaminator). The device comprises connecting water pipes, and comprises a sewage equalization pond, an administration mixing device, a U-shaped flocculation size mixing tube, the hydrocyclone aeration decontaminator and a static scalping tank which are orderly connected in series according to the water flow direction through the connecting water pipes. The device can be applied to the treatment of industrial sewage, in particular to the treatment of sewage for medium-small industries. Moreover, the invention also discloses a method for treating the industrial sewage.

Description

technical field [0001] The invention relates to an industrial sewage treatment device, especially a compact, efficient and mobile sewage treatment device uniquely developed by using a hydrocyclone aeration decontamination device-HAD (Hydrocyclone Aeration Decontaminator); in addition, the present invention It also relates to an industrial sewage treatment method. Background technique [0002] All over the world, especially in developing countries, industrial sewage discharged from various industrial production processes has caused serious harm to the environment and brought heavy economic burdens to governments and enterprises. Environmental issues have attracted great attention from the Chinese government, and the treatment of municipal (urban) sewage and industrial sewage has become an important industry in China. [0003] The normal municipal sewage treatment system includes sewage collection, pretreatment, secondary treatment and advanced treatment. The sewage discharg...

Claims

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Application Information

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IPC IPC(8): C02F9/04C02F7/00C02F1/52C02F1/72C02F1/24
CPCY02W10/10
Inventor 王旭明余强
Owner SHANGHAI PHICHEM MATERIAL CO LTD
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