Membrane contact oxidation device and method for advanced treatment of wastewater

A technology of advanced treatment and contact oxidation, applied in chemical instruments and methods, water/sewage treatment, oxidized water/sewage treatment, etc., can solve the problems of high energy consumption, large investment, low efficiency, etc. The effect of low cost and simple equipment

Inactive Publication Date: 2016-09-28
上一环保科技(杭州)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a membrane contact oxidation device and method for the advanced treatment of wastewater, which solves the technical and economic problems of high energy consumption, low efficiency, and large investment in the existing oxidation technology.

Method used

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  • Membrane contact oxidation device and method for advanced treatment of wastewater

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Effect test

Embodiment 1

[0035] Test conditions: Take 1L of wastewater from a printing and dyeing factory in a beaker, the initial CODcr120mg / L, and the chroma is 80 times. The wastewater enters the membrane contact oxidation device for treatment, and the flow rate of the water inlet pump is controlled at 80mL / min, the flow rate of the return pump is 160mL / min, and the flow rate of ozone is 20mg / min. After treatment by the device, the CODcr77mg / L, the removal rate is 36%, the chroma is 20 times, and the removal rate is greater than 50%.

Embodiment 2

[0037] Test conditions: Take 1L of waste water from a chemical plant in a beaker, the initial CODcr126mg / L, and the chromaticity is 100 times. The wastewater enters the membrane contact oxidation device for treatment, and the flow rate of the water inlet pump is controlled at 80mL / min, the flow rate of the return pump is 160mL / min, and the flow rate of ozone is 25mg / min. After device treatment, CODcr87mg / L, the removal rate is greater than 30%, the chroma is 40 times, and the removal rate is greater than 50%.

Embodiment 3

[0039] Test conditions: Take 1L of urban wastewater in a beaker, the initial CODcr62mg / L, and the chroma is 40 times. The wastewater enters the membrane contact oxidation device for treatment, and the flow rate of the water inlet pump is controlled at 80mL / min, the flow rate of the return pump is 160mL / min, and the flow rate of ozone is 20mg / min. After treatment by the device, CODcr45mg / L, the removal rate is 27%, the chroma is 20 times, and the removal rate is greater than 50%.

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Abstract

The invention discloses a membrane contact oxidation device and a membrane contact oxidation method for advanced treatment of wastewater, belonging to the technical field of environmental protection. According to the device and the method, the problems of wastewater treatment in the prior art that the organic matters and chroma are difficult to remove, the cost is high and the efficiency is low are solved. The device comprises a water feed pump, a membrane contact oxygenize, a water return pump, a water tank and an ozone generator. By utilizing the characteristic that a membrane contact reactor can generate efficient jet flow cutting to ozone, adequate contact between ozone and wastewater can be promoted, so that the organic matters in oxidation wastewater can be oxidized, the chroma can be removed, the technological process is simple, the operation cost is relatively low, and the operation and the management are convenient. The device and the method can be widely applied to deep removal of organic matters and chroma in various industrial wastewater treatment plants.

Description

technical field [0001] The invention relates to a membrane contact oxidation device and method for advanced treatment of wastewater, in particular to the advanced treatment of industrial wastewater to remove organic matter and chroma, and belongs to the technical field of environmental protection. Background technique [0002] With the rapid development of the economy, the amount of industrial and urban drainage is increasing, the pressure of water environmental pollution is significantly increasing, and people's requirements for environmental improvement are increasing. In recent years, the state and local governments have issued a series of new standards and regulations to control the discharge of water pollution to improve the quality of the water environment, which has brought about a series of upgrading and transformation of urban sewage treatment plants and industrial wastewater treatment plants. [0003] CODcr is an important indicator for national control of water po...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/78
CPCC02F1/78C02F2201/782
Inventor 叶舟李金页曾淼
Owner 上一环保科技(杭州)有限公司
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