Sewage treatment method for medical institutions

A sewage treatment method and technology for medical institutions, applied in water/sewage multi-stage treatment, water/sludge/sewage treatment, chemical instruments and methods, etc. Water and other problems, to achieve the effect of strong anti-shock load capacity, high sewage treatment efficiency, and simple operation and management

Inactive Publication Date: 2012-05-23
扬州龙锦涂装环保设备有限公司
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AI Technical Summary

Problems solved by technology

[0002] At present, most of the sewage treatment in medical institutions adopts biological treatment methods, including activated sludge method, membrane-bioreactor, biological aerated filter, and simple biochemical treatment. The above methods have certain defects. The activated sludge method has poor operation stability and is prone to Sludge bulking and sludge loss, the separation effect is not ideal; the gas-water ratio of the membrane-bioreactor is high, the membrane needs to be backwashed, and the energy consumption and operating costs are high; the biological aerated filter needs to be backwashed, and the operation mode is relatively complicated; The amount of recoil water is large; physical and chemical indicators such as COD and BOD of the effluent from simple biochemical treatment cannot be guaranteed to meet the standards
At present, many small and medium-sized medical institutions generally do not pay much attention to the treatment of sewage, and only stay on simple biochemical treatment, and there is no special person for management and operation. The various harmful organic substances, pathogens, and toxic bacteria discharged by them seriously pollute the surrounding water body. It also endangers the physical and mental health of the people

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  • Sewage treatment method for medical institutions

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Embodiment Construction

[0013] A method for treating sewage in medical institutions, including sewage pretreatment, anoxic treatment, aerobic treatment, sedimentation treatment, and disinfection treatment. The specific steps are as follows:

[0014] 1) Pretreatment removes solid pollutants in sewage, adjusts water quality and quantity, and rationally absorbs feces.

[0015] 2) The sewage is lifted into the anoxic tank, and fully mixed with the backflow nitrification solution in the anoxic tank. The denitrifying bacteria use the organic matter in the sewage under the anoxic environment to reduce the NO in the backflow nitrification solution. 3- converted to N 2 Release, install packing in the anoxic tank to maintain the mixed state of sewage.

[0016] 3) After that, all sewage return sludge enters the aerobic pool from the anoxic pool, and the aeration system is arranged in the aerobic pool to aerate the pool with oxygen, and the biological contact oxidation process is adopted to make the microorgani...

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Abstract

The invention relates to a sewage treatment method for medical institutions, which comprises the steps of sewage pretreatment, anaerobic treatment, aerobic treatment, precipitation treatment and disinfection treatment. The sewage treatment method for the medical institutions has low operation cost, is stable to operate and has high sewage treatment efficiency. Effluent continuously reaches the standard and is discharged in a qualified state. The pollution to the environment is effectively controlled. Therefore, not only is the environment improved, but also the load of a domestic wastewater treatment plant is relieved.

Description

technical field [0001] The invention relates to a method for treating sewage, in particular to a method for treating sewage in medical institutions. Background technique [0002] At present, most of the sewage treatment in medical institutions adopts biological treatment methods, including activated sludge method, membrane-bioreactor, biological aerated filter, and simple biochemical treatment. The above methods have certain defects. The activated sludge method has poor operation stability and is prone to Sludge bulking and sludge loss, the separation effect is not ideal; the gas-water ratio of the membrane-bioreactor is high, the membrane needs to be backwashed, and the energy consumption and operating costs are high; the biological aerated filter needs to be backwashed, and the operation mode is relatively complicated; The amount of recoil water is relatively large; physical and chemical indicators such as COD and BOD of the effluent from simple biochemical treatment canno...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/14
Inventor 徐红定徐亚
Owner 扬州龙锦涂装环保设备有限公司
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