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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

Active Publication Date: 2009-02-11
瓮安县龙马磷业有限公司
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Problems solved by technology

[0003] In order to solve the problem that the existing yellow phosphorus industrial wastewater treatment process has a serious impact on the life and work of the surrounding residents, the present invention proposes a yellow phosphorus industrial wastewater treatment method

Method used

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  • Treatment process for industrial wastewater of yellow phosphorus production
  • Treatment process for industrial wastewater of yellow phosphorus production
  • Treatment process for industrial wastewater of yellow phosphorus production

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Embodiment Construction

[0014] according to figure 1 The process flow diagram shown in describes the present invention in detail as follows:

[0015] a. The wastewater is transported through pipelines to a sealed separation system connected in series by five refined separation tanks for sedimentation and separation treatment. The floating phosphorus and phosphorus sludge in the wastewater are gradually deposited and separated from the water. During this process, the temperature of the wastewater is guaranteed to be 70 -80°C, use the suction pump to pump the sediment to the refining pot every 24 hours for reuse; after the wastewater passes through five refining and separating tanks in sequence, the phosphorus content in the wastewater is reduced by about 80%;

[0016] b. The wastewater treated by the sealed separation system is introduced into the sedimentation system connected in series by five sedimentation tanks for natural sedimentation and separation. The residual phosphorus sludge in the wastewa...

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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.

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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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F1/52
Inventor 程兴平熊伟阮班明
Owner 瓮安县龙马磷业有限公司
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