High-efficiency biological aerated filter (BAF) device used for explosive wastewater treatment

A biological aerated filter and wastewater treatment technology, applied in biological treatment devices, water treatment parameter control, biological water/sewage treatment, etc., can solve the problems of inability to meet industrial wastewater treatment requirements and high costs, reduce infrastructure investment, Low cost and improved treatment effect

Inactive Publication Date: 2016-06-01
CHINA NORTH ENERGY CONSERVATION & ENVIRONMENT PROTECTION
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to provide a high-efficiency biological aerated filter device for the treatment of explosive waste water in order to solve the problems that the existing technology cannot meet the requirements of industrial waste water treatment and the cost is too high

Method used

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  • High-efficiency biological aerated filter (BAF) device used for explosive wastewater treatment
  • High-efficiency biological aerated filter (BAF) device used for explosive wastewater treatment

Examples

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Embodiment 1

[0030] Taking the explosive waste water discharged from a certain factory as the treatment object, the parameters of the waste water after the first and second level biochemistry meet the "Comprehensive Wastewater Discharge Standard" are: COD=88-96mg / L, pH=7~9, ammonia nitrogen is 15- 18mg / L.

[0031] A high-efficiency biological aerated filter device for the treatment of propellant waste water, such as figure 2 As shown, it includes supporting layer, filter material layer, water outlet area, water outlet tank, backwash drainage pipe, purified water discharge pipe, material plate sedimentation area, grid-shaped steady flow plate, aeration pipe, backwash air supply pipe; also includes Recoil intake pipeline, recoil water inlet pipeline and filter inlet pipe; the aeration pipe is placed in the filter material layer and kept at a distance from the filter inlet pipe; the supporting layer is located at the bottom of the filter; the filter inlet pipe , Recoil intake pipes and reco...

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Abstract

The invention relates to a high-efficiency biological aerated filter (BAF) device used for explosive wastewater treatment, belongs to the field of wastewater treatment, and aims to effectively overcome the defects during the explosive wastewater reuse of complex treatment process, high treatment cost and the like of ammonia nitrogen and organic matter degradation; the device comprises a water intake system, a water discharge system, an aerating system, a backwash water intake system, a backwash water discharge system, a supporting layer and a filler layer. According to the high-efficiency biological aerated filter (BAF) device used for explosive wastewater treatment, the physicochemical process and the biochemical process are combined, fine suspended matters are intercepted under the adsorptive filtration action of the filler, and most of ammonia nitrogen and organic pollutants are removed under the internal and external biochemical treatment action of the filler, and the condition that effluent can reach the standard and be reused is ensured; besides, the device is low in cost and good in treatment effect, ammonia nitrogen after wastewater treatment is reduced to be 5 mg/L or below, and COD is smaller than 50 mg/L.

Description

technical field [0001] The invention relates to a high-efficiency aerated biological filter device used for the treatment of explosive waste water, which belongs to the field of waste water treatment. Background technique [0002] For the sustainable development of the enterprise, energy saving and emission reduction, the waste water discharged up to the standard needs to be reused to effectively reduce the fresh water consumption of the enterprise. After primary and secondary treatment, explosive waste water meets discharge standards and needs to be further treated to meet toilet flushing, greening, regeneration and reuse standards. [0003] Explosive wastewater generally contains nitro pollutants, and the treatment process is complicated and the treatment cost is high. At present, the domestic treatment methods for the reuse of explosive wastewater are activated carbon adsorption method and chemical oxidation method. [0004] Ordinary biological aerated filter, initially ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F3/30
CPCC02F3/301C02F2203/006C02F2209/005C02F2303/14
Inventor 崔剑楚素珍韩建勋姜鑫羡永张众磊刘珣张志斌汪斌王筱红霍毅
Owner CHINA NORTH ENERGY CONSERVATION & ENVIRONMENT PROTECTION
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