Advanced treatment and cyclic utilization method for industrial wastewater

A technology for industrial wastewater and advanced treatment, applied in water/sewage treatment, natural water treatment, water treatment parameter control, etc., can solve the problem that the technology cannot meet the target requirements, etc., and achieve convenient operation, improved effect, and simple device structure. Effect

Pending Publication Date: 2021-09-24
福建省环境保护设计院有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Therefore, each advanced treatment technology has a high removal rate for a single pollutant. However, due to the complexity of pollutants in industrial wastewater, it is impossible for a single technology to meet the target requirements. Therefore, it is necessary to combine the advantages of various technologies according to the water quality of the wastewater. In order to ensure the recyclability of waste water and the economical efficiency, feasibility and stability of technology

Method used

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  • Advanced treatment and cyclic utilization method for industrial wastewater

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Effect test

Embodiment 1

[0024] see figure 1 According to a method for advanced treatment and recycling of industrial wastewater according to an embodiment of the present invention, the specific steps are as follows:

[0025] S1: First introduce industrial wastewater into the sedimentation tank, add Na2CO3 to the sedimentation tank, use the stirring motor to mix and stir, adjust the pH value to 8.5~9.0, settle for 2.0~2.5h, use the iron ion in the solution as a flocculant, and throw in at the same time Add polyacrylamide as a coagulant to remove iron ions and hardness in wastewater;

[0026] S2: The sewage settled in the sedimentation tank is introduced into the coarse filter box through the pump body, and the suspended solids in the wastewater are filtered out through the filter in the coarse filter box;

[0027] S3: Introduce the coarsely filtered wastewater into the deep oxidation tank, use the aeration device to fully mix the ozone with the wastewater, cooperate with the micro-electrolysis device...

Embodiment 2

[0033] Such as figure 1As shown, first introduce industrial wastewater into the sedimentation tank, add Na2CO3 to the flocculation sedimentation tank, use the stirring motor to mix and stir, adjust the pH value to 8.5-9.0, settle for 2.0-2.5 hours, and use the iron ions in the solution as flocculation At the same time, polyacrylamide is added as a coagulant to remove iron ions and hardness in the wastewater, and the sewage precipitated in the sedimentation tank is introduced into the coarse filter box through the pump body, and the wastewater in the wastewater is filtered through the filter in the coarse filter box. The suspended solids are filtered out, and the coarsely filtered wastewater is introduced into the deep oxidation tank, and the ozone is fully mixed with the wastewater by the aeration device, and the micro-electrolysis device is used to decompose the pollutants that are difficult to be decomposed by ordinary sewage biological treatment methods, and the macromolecul...

Embodiment 3

[0035] Such as figure 1 As shown, first introduce industrial wastewater into the sedimentation tank, add Na2CO3 to the flocculation sedimentation tank, use the stirring motor to mix and stir, adjust the pH value to 8.5-9.0, settle for 2.0-2.5 hours, and use the iron ions in the solution as flocculation At the same time, polyacrylamide is added as a coagulant to remove iron ions and hardness in the wastewater, and the sewage precipitated in the sedimentation tank is introduced into the coarse filter box through the pump body, and the wastewater in the wastewater is filtered through the filter in the coarse filter box. The suspended solids are filtered out, and the coarsely filtered wastewater is introduced into the deep oxidation tank, and the ozone is fully mixed with the wastewater by the aeration device, and the micro-electrolysis device is used to decompose the pollutants that are difficult to be decomposed by ordinary sewage biological treatment methods, and the macromolecu...

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Abstract

The invention discloses an advanced treatment and cyclic utilization method for industrial wastewater, which comprises the steps of firstly, removing iron ions and hardness in wastewater in a sedimentation tank under the action of a flocculating agent and a coagulant aid, then introducing sewage precipitated in the sedimentation tank into a coarse filtration tank through a pump body, then introducing the sewage into an advanced oxidation tank, fully mixing ozone with the wastewater by using an aeration device, decomposing macromolecular organic matters into micromolecular organic matters for primary decomposition, adsorbing the decomposed micromolecular organic matters by using an activated carbon adsorption core in the activated carbon adsorption box, conveying the adsorbed water into the photocatalytic oxidation box through the pump body, carrying out secondary oxygenolysis on organic matters in the wastewater, finally filtering the wastewater in a fine filter tank, and conveying out by a circulating pump. The method has the beneficial effects that the device is simple in structure and convenient to operate, the wastewater can be subjected to double decomposition and filtration, the effect of decomposing macromolecules into micromolecules is greatly improved, the purification effect on the wastewater is improved, and cyclic utilization can be realized.

Description

technical field [0001] The invention relates to the technical field of advanced treatment of industrial wastewater, in particular to a method for advanced treatment and recycling of industrial wastewater. Background technique [0002] With the increasing development of my country's industry, industrial water consumption has greatly increased, and my country does not have a complete water-saving system in the industrial production process, and the water quality monitoring and control of each process section is not in place, and it is impossible to achieve segmented and water quality classification. , leading to low water use efficiency and water reuse rate, and serious waste of water resources. Due to the lack of mature and effective sewage treatment technology and equipment, the concept awareness of waste water recycling is weak, resulting in a serious shortage of water resources. Therefore, strengthening the utilization of water resources and implementing industrial water-s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/08C02F101/10C02F101/20C02F101/30C02F103/34
CPCC02F9/00C02F1/66C02F2209/06C02F1/5281C02F2001/007C02F1/56C02F2101/203C02F2101/10C02F2209/055C02F1/001C02F1/78C02F1/46176C02F2101/30C02F1/283C02F1/32C02F2303/04C02F1/54C02F2103/34
Inventor 吴永伟游海洋陈伟林政游亮
Owner 福建省环境保护设计院有限公司
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