Comprehensive treatment process method for chemical industrial park wastewater

A chemical industry park and process method technology, applied in the fields of special compound water treatment, oxidized water/sewage treatment, water/sewage treatment, etc., can solve the problem of poor wastewater treatment effect, etc. Effect

Active Publication Date: 2021-02-19
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0013] The purpose of the present invention is to solve the problem of poor treatment effect of wastewater in chemical industry parks at present, and to provide a comprehensive treatment process for wastewater in chemical industry parks that focuses on pretreatment and biochemical treatment of wastewater

Method used

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  • Comprehensive treatment process method for chemical industrial park wastewater
  • Comprehensive treatment process method for chemical industrial park wastewater
  • Comprehensive treatment process method for chemical industrial park wastewater

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Experimental program
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Effect test

Embodiment 1

[0049] like figure 1 As shown, the wastewater treatment in the chemical industry park follows the principle of "separate treatment". The wastewater that is difficult to biochemically degrade enters the flocculation sedimentation tank, the intermediate pool, the catalytic oxidation tower, and the adjustment tank in turn; the wastewater that is easily biodegradable directly enters the adjustment tank. The degraded wastewater is evenly mixed, and after homogenization, it enters the biochemical treatment unit. After that, the wastewater enters the primary aerobic pool, the anoxic pool, and the secondary aerobic pool, and then is discharged into the advanced treatment unit after solid-liquid separation in the secondary sedimentation tank.

[0050] Collect all the wastewater in the park and mix the wastewater with BOD / COD less than 0.3, which is refractory wastewater; refractory biodegradable wastewater COD: 350mg / L; ammonia nitrogen: 50mg / L; chroma: 60; other wastewater collection i...

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Abstract

The invention belongs to the field of environmental engineering sewage treatment, relates to pretreatment and biochemical treatment of wastewater, and particularly relates to a comprehensive treatmentprocess method for chemical industrial park wastewater. The method comprises the following steps: carrying out quality-divided treatment on wastewater in a chemical industrial park, firstly feeding the wastewater difficult to biochemically degrade into a flocculation sedimentation tank for flocculation treatment, feeding the treated wastewater into a catalytic ozonation tower, and carrying out mineralization decomposition on substances difficult to degrade in the wastewater by virtue of hydroxyl radicals generated by catalytic ozonation reaction; the wastewater subjected to catalytic ozonation and the wastewater easy to biochemically treat enter an adjusting tank together, the mixed wastewater is homogenized and then enters a biochemical treatment unit, the biochemical treatment unit adopts an OAO process, the treated wastewater enters a secondary sedimentation tank, and after solid-liquid separation, the treated wastewater is discharged into an advanced treatment unit. The process issafe and reliable, and an economic, feasible and stable combined technology is provided for comprehensive treatment of the wastewater in the chemical industrial park.

Description

technical field [0001] The invention belongs to the field of sewage treatment in environmental engineering, relates to pretreatment and biochemical treatment of waste water, and in particular to a process method for comprehensive treatment of waste water in chemical industrial parks. Background technique [0002] In recent years, chemical industry parks have been popularized rapidly in my country, and their distribution has become more and more widespread. However, the comprehensive treatment of wastewater in chemical industry parks is still immature in my country, which can easily cause problems such as improper sewage treatment, waste of resources, and environmental pollution. Moreover, with the development of society, environmental issues are highly valued, and it is becoming more and more difficult to treat sewage in chemical industry parks. Therefore, research and development of efficient and stable wastewater treatment technologies is an urgent problem to be solved in c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/14C02F101/30C02F101/16
CPCC02F9/00C02F1/5281C02F1/5245C02F1/56C02F1/283C02F1/725C02F1/78C02F2305/023C02F3/302C02F1/52C02F11/122C02F11/13C02F2101/30C02F2101/16C02F2203/006C02F2301/046C02F2303/14
Inventor 杨洪新马文静董振海宋红吴军亮姜雪松胡金玲张立君
Owner DESIGN ENG OF SYRICI
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