Hospital wastewater treatment method and system

A wastewater treatment system and wastewater treatment technology, which is applied in the direction of pathogenic microbial wastewater treatment, water/sewage treatment, biological water/sewage treatment, etc., can solve the problems of large amount of equipment maintenance, large one-time investment, and increased annual operating costs, etc.

Inactive Publication Date: 2021-05-11
浙江一清环保工程有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The disadvantage is that there are many supporting equipment, a large one-time investment, a large amount of e

Method used

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  • Hospital wastewater treatment method and system
  • Hospital wastewater treatment method and system
  • Hospital wastewater treatment method and system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0065] refer to figure 1 , a hospital wastewater treatment method, comprising the steps of:

[0066] (1) The waste water is firstly treated by the grid and then enters the regulating pool;

[0067] The grill is used to remove solid particle impurities such as gauze and cotton balls, and its water outlet is connected to the water inlet of the subsequent regulating tank;

[0068] The regulating tank adopts bottom aeration, which is used to accumulate the raw wastewater discharged from each wastewater source and stabilize the flow of subsequent treatment equipment, and its outlet is connected to the inlet of the subsequent coagulation and sedimentation tank;

[0069] (2) The effluent from the regulating tank enters the coagulation sedimentation tank;

[0070] Coagulation and sedimentation tank, adding coagulant and coagulant aid and mixing, so that the suspended matter and some organic molecules in the wastewater form larger flocs and settle, greatly eliminating the content of ...

Embodiment 2

[0087] The method of Example 1 was used to treat another kind of hospital wastewater, and the treatment results are shown in Table 1.

Embodiment 3

[0089] The method of Example 1 was used to treat another kind of hospital wastewater, and the treatment results are shown in Table 1.

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PUM

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Abstract

The invention relates to a hospital wastewater treatment method and system. Wastewater is firstly treated by a grating and then sequentially passes through an adjusting tank, a coagulative precipitation tank, an electrocatalytic oxidation device, an MBBR biochemical tank, a precipitation tank, a biochar tower, a precision filter and a disinfection tank to reach the reuse standard and the discharge standard; and sludge generated by the coagulative precipitation tank, the MBBR biochemical tank and the biological activated carbon tower is discharged into a sludge concentration tank, the sludge treated by the sludge concentration tank is dewatered, the dewatered sludge is transported out for final treatment, and sewage flows back to the regulating tank. According to the invention, through mutual cooperation of all the steps and synergistic effect of all the treatment devices, the effluent quality of the treated hospital wastewater can easily reach the discharge standard, and the treatment method has the advantages of reliable process, strong stability, high pollutant removal rate, stable and standard effluent quality, low operation cost and the like, and is suitable for treatment of the hospital wastewater.

Description

technical field [0001] The invention belongs to the technical field of sewage treatment, and in particular relates to a hospital wastewater treatment method and system. Background technique [0002] Hospital sewage refers to the sewage discharged from hospitals (general hospitals, professional hospitals and other types of hospitals) to the natural environment or urban pipelines. Its water quality varies with the nature, size and area of ​​different hospitals. The amount of sewage discharged by each hospital bed is about 200-1000L per day. The main pollutants contained in hospital sewage are: pathogens (parasite eggs, pathogenic bacteria, viruses, etc.), organic matter, floating and suspended matter, radioactive pollutants, etc. The total number of bacteria contained in untreated raw sewage reaches 108 / More than mL. [0003] The principle of hospital sewage treatment is: divide the quality and flow, separate the treatment locally, and eliminate the pollution at the neares...

Claims

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Application Information

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IPC IPC(8): C02F9/14C02F101/30
CPCC02F9/00C02F1/001C02F1/5245C02F1/4672C02F1/56C02F1/725C02F3/301C02F1/50C02F1/283C02F3/342C02F2101/30C02F2303/04C02F2103/003
Inventor 吴昊陈越刘龙梅丁庆章陈建军
Owner 浙江一清环保工程有限公司
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