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Chemical recycling method for treating phosphorus-containing wastewater from electrode foil production

A chemical recycling, electrode foil technology, applied in chemical instruments and methods, water/sewage multi-stage treatment, water/sludge/sewage treatment, etc. The effect of treatment efficiency, reducing the burden of biochemical treatment, and avoiding secondary pollution

Inactive Publication Date: 2014-02-19
罗代洪 +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

There are defects such as heavy burden of biochemical treatment, low treatment efficiency, large amount of waste residue, easy to produce secondary pollution, and waste of resources that cannot be recycled.

Method used

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  • Chemical recycling method for treating phosphorus-containing wastewater from electrode foil production

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Effect test

Embodiment 1

[0020] Add 150 kg of alkali to 4 tons of electrode foil production phosphorus-containing wastewater, start the mixer, react for 20 minutes, and precipitate and filter. Add 280 kg of extractant to the filtrate, start the mixer, react for 20 minutes, precipitate and filter, and detect the total phosphorus (T-P) of the filtrate. The total phosphorus (T-P) in the raw water is 4631.4mg / L, and the total phosphorus (T-P) after treatment is 3.25mg / L, and the removal rate is 99.92%.

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Abstract

The invention relates to a chemical recycling method for treating phosphorus-containing wastewater from electrode foil production and belongs to the fields of chemistry, environmental engineering and industrial wastewater treatment. The technical problem to be solved is to recover phosphorus in the phosphorus-containing wastewater by using a recovery agent as a raw material. The main points in the technical scheme is as below: adjusting the pH, adding the recovery agent, separating reaction precipitates and conducting multiple-step washing on the separated solid phase to obtain the recovery object; and carrying out biochemical treatment on the liquid phase after recovery, so that the phosphorus content of the liquid phase reaches the national discharge standard. Compared with the prior art, the chemical recycling method for treating phosphorus-containing wastewater from electrode foil production provided by the invention has the characteristics of recovery of resources, reduction in the biochemical treatment burden, improvement of treatment efficiency and avoiding of secondary pollution, and can realize the large-scale treatment. Therefore, the method for treating phosphorus-containing wastewater from electrode foil production is simple, efficient, energy-saving and environment-friendly, and reaches comprehensive utilization of resources.

Description

technical field [0001] The invention relates to a method for chemically recovering and treating phosphorus-containing wastewater in electrode foil production. It belongs to the field of chemical and environmental engineering and industrial sewage treatment. Background technique [0002] A method for chemically recovering and treating phosphorus-containing wastewater in electrode foil production uses a recovery agent as a raw material to recover and treat phosphorus in phosphorus-containing wastewater in electrode foil production. It is used in resource recycling, water treatment, environmental governance and other fields. [0003] From the point of view of the production process, the current treatment method for phosphorus-containing wastewater in the production of electrode foil is lime plus biochemical treatment. There are defects such as heavy burden of biochemical treatment, low treatment efficiency, large amount of waste residue, easy to produce secondary pollution, a...

Claims

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Application Information

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IPC IPC(8): C02F9/14
Inventor 罗代洪罗凯赵晓琴
Owner 罗代洪
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