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Sewage treatment system for metal surface treatment wastewater and control method

A metal surface treatment and sewage treatment system technology, applied in water/sewage treatment, metallurgical wastewater treatment, oxidized water/sewage treatment, etc., can solve the problems of poor treatment effect, low treatment efficiency, long process flow, etc., and achieve full promotion Mixing, good treatment effect, simple treatment process

Pending Publication Date: 2019-03-12
ATK HLDG GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This industrial wastewater treatment process has problems such as long process flow, low treatment efficiency and poor treatment effect.

Method used

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  • Sewage treatment system for metal surface treatment wastewater and control method
  • Sewage treatment system for metal surface treatment wastewater and control method
  • Sewage treatment system for metal surface treatment wastewater and control method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] Embodiment 1: a kind of sewage treatment system of metal surface treatment waste water, as figure 1 As shown, the pretreatment device is used for preliminary treatment of metal surface treatment wastewater; the membrane treatment device is used for reprocessing the pretreated metal surface treatment wastewater.

[0045] Such as figure 1 As shown, the pretreatment device includes a pretreatment pool 1, and the length direction of the pretreatment pool 1 is figure 1 In the direction of the inside and outside of the paper, the upper side of the pretreatment tank 1 is provided with a water inlet pipe 11 for passing in waste water, and the lower end of the pretreatment tank 1 is provided with an outlet pipe 12, which communicates with the membrane treatment device. The upper end of the pretreatment tank 1 is provided with an installation part 2, and the installation part 2 moves along the length direction of the pretreatment tank 1 under the action of a power source (not sh...

Embodiment 2

[0053] Embodiment 2: A method for controlling the sewage treatment system of metal surface treatment wastewater, used to control the sewage treatment system of metal surface treatment wastewater in the above embodiment, such as Figure 1 to Figure 3 shown, including the following steps:

[0054] S1: Pretreatment: pretreatment of metal surface treatment wastewater, the treatment time is 2 hours;

[0055] (1) Pass metal surface treatment wastewater into the pretreatment tank 1 and stir;

[0056] (2) Feed the wastewater treatment liquid into the feed pipe 211, the waste water treatment liquid enters the cavity 212 through the feed pipe 211, and is sprayed into the pretreatment tank 1 by the drainage groove 213; at the same time, the stirring shaft 21 moves along the pretreatment tank 1 move in the length direction;

[0057] (3) After the wastewater treatment liquid is sprayed, gas is introduced into the air inlet pipe 214, the gas enters the cavity 212 through the air inlet pip...

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Abstract

The invention discloses a sewage treatment system for metal surface treatment wastewater and a control method, and belongs to the field of sewage treatment. The sewage treatment system for the metal surface treatment wastewater comprises a pretreatment device and a film treatment device, wherein the pretreatment device comprises a pretreatment pond; a water inlet tube is arranged on the upper sideof the pretreatment pond; a water outlet tube is arranged at the lower end of the pretreatment pond; a mounting portion is arranged at the upper end of the pretreatment pond, and moves along the length direction of the pretreatment pond under the effect of a power source; the mounting portion is rotatably connected with a stirring shaft; a feeding tube is coaxially fixedly arranged in the stirring shaft; the lower end of the feeding tube communicates with a cavity; the cavity is positioned in the stirring shaft; a plurality of draining groves are formed in the stirring shaft and are positioned in the peripheral direction of the lower end of the cavity; and one end of each drainage groove communicates with the cavity while the other end communicates with the inside of the pretreatment pond. The sewage treatment system for the metal surface treatment wastewater has the advantages of simple treatment process and good treatment effect. The invention further provides a control method of the sewage treatment system for the metal surface treatment wastewater. The sewage treatment system for the metal surface treatment wastewater is suitable for purifying the metal surface treatment wastewater.

Description

technical field [0001] The invention relates to the field of sewage treatment, in particular to a sewage treatment system and a control method for metal surface treatment wastewater. Background technique [0002] The wastewater discharged by metal surface treatment enterprises contains a large amount of ammonia nitrogen, organic nitrogen, inorganic and organic phosphorus, heavy metals, COD (mainly refractory organic matter), etc. The composition of the wastewater is very complex and its biodegradability is extremely poor. At present, it is still very difficult for the nitrogen, phosphorus and heavy metals in the discharge water of most metal surface treatment enterprises to meet the requirements of the "Discharge Standard of Pollutants for Urban Sewage Treatment Plants" (GB18918-2002) level 8 standard. [0003] The Chinese patent with publication number CN107434332A discloses an industrial wastewater treatment process, which includes steps such as sedimentation treatment, se...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/04C02F101/20C02F101/16C02F101/10C02F103/16
CPCC02F1/444C02F1/5281C02F1/72C02F2103/16C02F2201/002C02F2201/007C02F2101/105C02F2101/20C02F2101/16
Inventor 徐琪程吴智仁徐畅陈园园李俊波王磊
Owner ATK HLDG GRP CO LTD
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