Treatment process for industrial wastewater of yellow phosphorus production

A technology of industrial wastewater and treatment methods, applied in the direction of flocculation/sedimentation water/sewage treatment, etc., can solve the problems of surrounding residents' life and work impact, achieve the effects of increased recovery rate, reduced investment, and shortened process flow
CN100460339CActive Publication Date: 2009-02-11瓮安县龙马磷业有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
瓮安县龙马磷业有限公司
Publication Date
2009-02-11

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Abstract

The invention relates to a treatment process for industrial wastewater of yellow phosphorus production comprising the steps of, transporting waste water to refined separating tank through pipelines for deposition segregation, gradually depositing floating phosphor and phosphoric mud in the waste water, pump exhausting the sediment to refining pot for re-utilization, transferring the segregated and disposed waste water into deposit chamber for natural deposition segregation, ladling out phosphoric mud after each time intervals, loading into phosphoric mud furnace for re-utilization, and introducing waste water to the front tank of the effluent treatment device, pumping waste water to the effluent treatment device, further depositing the phosphor in the waste water onto the bottom of the processing unit, removing phosphor from deposits for re-utilization, finally loading waste water into the circulating water distributing trough during yellow phosphor production. During the treatment process, only water vapor is discharged into the atmosphere.
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Description

technical field

[0001] The invention relates to a method for treating industrial waste water, in particular to a method for treating yellow phosphorus industrial waste water. Background technique

[0002] The traditional yellow phosphorus production process has caused serious pollution to the environment, and the wastewater generated during the production process is the chief culprit of environmental pollution. At present, the wastewater treatment process of most yellow phosphorus plants is as follows: the cooling water of the phosphorus collection tank, the hot water for rinsing yellow phosphorus in the refining pot, and the hot water in the slag washing tank are transported to the sewage pool (generally 1200-2500 About square meters, the larger the output, the larger the sewage pool), allowing the waste water to cool and settle naturally in the pool. Wastewater contains a large amount of phosphorus sludge and floating phosphorus in the production process. When it sees air...

Claims

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