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Sewage treatment device, multistage sewage treatment equipment, sewage treatment system and sewage treatment method

A sewage treatment device and overflow technology, applied in water/sewage treatment equipment, water/sewage treatment, light water/sewage treatment, etc., to achieve compact structure, improve hydraulic load resistance, and avoid recycling

Active Publication Date: 2020-01-31
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, as a photocatalytic oxidation technology, the ultraviolet photocatalytic process is mainly limited by its photocatalytic efficiency, energy utilization efficiency, light penetration performance, and pretreatment or posttreatment methods.

Method used

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  • Sewage treatment device, multistage sewage treatment equipment, sewage treatment system and sewage treatment method
  • Sewage treatment device, multistage sewage treatment equipment, sewage treatment system and sewage treatment method
  • Sewage treatment device, multistage sewage treatment equipment, sewage treatment system and sewage treatment method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0158] The sewage treated in this embodiment is phenol-containing wastewater, and the water quality is as follows: COD is 120 mg / L, and pH is 6.50.

[0159] The phenol-containing wastewater to be treated is mixed with medicament (hydrogen peroxide, the consumption is 1mM in the buffer pool, i.e. H 2 o 2 Relative to the concentration of the whole sewage to be treated is 1mM, the same below), after being stirred evenly, it enters the sewage treatment device at a speed of 50mL / min, and is first filtered through a ceramic membrane tube, and the transmembrane pressure difference is 0.2MPa, and concentrated water is obtained in the filtration area. The water passing through the membrane tube is catalyzed by ultraviolet light, and effluent is obtained in the ultraviolet photocatalysis area, the lower buffer zone and the upper buffer zone; the flow rate of the concentrated water is controlled to 30mL / min, and the flow rate of the effluent is 20mL / min.

[0160] After the system was ru...

Embodiment 2

[0162] The sewage treated in this embodiment is MDEA wastewater, and the water quality is as follows: COD is 127mg / L, and pH is 7.50.

[0163] The MDEA wastewater to be treated is stirred evenly with the agent (hydrogen peroxide, dosage: 1mM) in the buffer tank and then enters the sewage treatment device at a speed of 50mL / min. Concentrated water is obtained, the water passing through the membrane tube is catalyzed by ultraviolet light, and effluent is obtained in the ultraviolet photocatalytic zone, lower buffer zone and upper buffer zone. The flow rate of concentrated water is controlled to 30mL / min, and the flow rate of effluent is 20mL / min.

[0164] After the system was running for 60 minutes, the water quality of the effluent was measured as follows: COD was 42.0 mg / L and pH was 5.12.

Embodiment 3

[0166] Process MDEA wastewater according to the method of Example 2, the difference is that the MDEA wastewater to be treated is stirred evenly with the medicament in the buffer tank and then enters the sewage treatment plant at a speed of 100mL / min, and the transmembrane pressure difference is adjusted to be 0.3MPa. Control the concentrated water flow rate to 60mL / min, and the effluent flow rate to 40mL / min.

[0167] After the system was running for 60 minutes, the water quality of the effluent was measured as follows: COD was 62.0 mg / L and pH was 5.89.

[0168] Embodiment 4-5 adopts Figure 6 Described sewage treatment system treats sewage, adopts such as image 3 and Figure 4 The sewage treatment plant shown.

[0169] In the sewage treatment device, the height of the hollow cylinder is 220mm, and the inner diameter is 130mm;

[0170] The number of channels of the multi-channel ceramic membrane tube is 4, and each group of two is arranged radially along the membrane tub...

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Abstract

The invention relates to the field of sewage treatment, and discloses a sewage treatment device, multistage sewage treatment equipment, a sewage treatment system and a sewage treatment method. The sewage treatment device comprises a hollow cylinder with an upper end sealing cover and a lower end sealing cover, wherein a ceramic membrane pipe is arranged in the hollow cylinder, and is respectivelysealed with the top end and the bottom end of the hollow cylinder through an upper sealing plug and a lower sealing plug, a filtering area is formed between the ceramic membrane pipe and the cylinder,an ultraviolet lamp bushing sleeved with an ultraviolet lamp is arranged in the channel of the ceramic membrane pipe, an ultraviolet light catalytic area is formed between the ultraviolet lamp bushing and the ceramic membrane pipe, an upper end buffer area is formed between the upper end sealing cover and the upper sealing plug, a lower end buffer area is formed between the lower end sealing cover and the lower sealing plug, and the upper end buffer area, the ultraviolet light catalytic area and the lower end buffer area are sequentially communicated. According to the invention, the sewage treatment device is compact in structure, easy to operate, capable of changing the water treatment amount and the like according to actual requirements and good in operation flexibility.

Description

technical field [0001] The invention relates to the field of sewage treatment, in particular to a sewage treatment device, multi-stage sewage treatment equipment, sewage treatment system and method. Background technique [0002] With the rapid development of my country's industry, the contradiction between production and environment has become increasingly prominent. On the one hand, the amount of refractory organic wastewater produced by various industries (such as petrochemical, steel, pharmaceutical, smelting, printing and dyeing, etc.) is increasing day by day, and the composition of wastewater is becoming more and more complex. The existing treatment technology needs to improve the treatment efficiency of refractory organic matter in sewage; on the other hand On the one hand, the state and various industries have put forward stricter requirements on water pollutant discharge indicators, which further promotes the optimization and transformation of sewage treatment facil...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/04
CPCC02F1/44C02F1/32C02F1/725C02F2201/002
Inventor 王辉秦冰高嵩孙飞傅晓萍王金华余正齐
Owner CHINA PETROLEUM & CHEM CORP
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