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Method for treating medical waste water

A technology for wastewater and aerobic treatment, applied in filtration treatment, sedimentation treatment, special treatment targets, etc., can solve the problems of pathogenic microorganism retention, unreasonable treatment process, secondary pollution of medical wastewater, etc., to reduce suspended solids and COD, The sedimentation speed is accelerated and the disinfection effect is good.

Inactive Publication Date: 2018-04-20
SICHUAN ZHICHUANG SPACE INCUBATOR MANAGEMENT CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Its shortcomings are: (1) The treatment process is unreasonable; pathogenic microorganisms are often treated in the last step, causing pathogenic microorganisms to easily remain in the previous device, causing secondary pollution to the subsequent batch of medical wastewater, and increasing Risk of spread of pathogenic microorganisms
(2) High-temperature sterilization and filter sterilization cannot effectively kill various bacteria and viruses in medical wastewater, and the effect is not ideal

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] This embodiment provides a method for treating medical wastewater. In the method, the medical wastewater is disinfected first, so as to prevent the further spread of pathogenic microorganisms from causing secondary pollution to the next batch of medical wastewater. The treatment method of the medical wastewater provided by the present embodiment comprises the following steps:

[0040] Step 1: collect medical wastewater, pass chlorine dioxide into the medical wastewater according to the volume ratio of chlorine dioxide and medical wastewater in the ratio of 1:20-40, stir well, and disinfect for 4-8 hours.

[0041] Step 2: Filter the sterilized medical wastewater with a grid to remove large particles of impurities. The gap between the grids is 0.05-0.08cm. After primary filtration, medical wastewater enters the process of removing heavy metal ions, and large particles of impurities are collected and then concentrated for treatment.

[0042] Step 3: Before carrying out th...

Embodiment 2

[0046] This embodiment provides a method for treating medical wastewater. In the method, the medical wastewater is disinfected first, so as to prevent the further spread of pathogenic microorganisms from causing secondary pollution to the next batch of medical wastewater. The treatment method of the medical wastewater provided by the present embodiment comprises the following steps:

[0047] Step 1: collect medical wastewater, pass ozone into the medical wastewater according to the volume ratio of ozone to medical wastewater in the ratio of 1:10-30, stir well, and then disinfect for 4-8 hours.

[0048] Step 2: Filter the sterilized medical wastewater with a grid to remove large particles of impurities. The gap between the grids is 0.05-0.08cm. After primary filtration, medical wastewater enters the process of removing heavy metal ions, and large particles of impurities are collected and then concentrated for treatment.

[0049] Step 3: Before the process of removing heavy met...

Embodiment 3

[0054] This embodiment provides a method for treating medical wastewater. In the method, the medical wastewater is disinfected first, so as to prevent the further spread of pathogenic microorganisms from causing secondary pollution to the next batch of medical wastewater. The treatment method of the medical wastewater provided by the present embodiment comprises the following steps:

[0055] Step 1: Collect medical wastewater, add potassium monopersulfate to the medical wastewater according to the mass volume ratio of potassium peroxomonosulfate to medical wastewater of 30-60:1 (g: L), stir well, and then disinfect 4-8h.

[0056] Step 2: Filter the sterilized medical wastewater with a grid to remove large particles of impurities. The gap between the grids is 0.05-0.08cm. After primary filtration, medical wastewater enters the process of removing heavy metal ions, and large particles of impurities are collected and then concentrated for treatment.

[0057] Step 3: Before the ...

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Abstract

The invention discloses a method for treating medical wastewater, and relates to the field of medical wastewater treatment. The method for treating medical wastewater provided by the present invention includes: collecting medical wastewater, and disinfecting it with chemical disinfectants; performing primary filtration treatment on the medical wastewater to remove large-particle impurities therein; performing heavy metal ion removal treatment on the medical wastewater; The medical wastewater is treated with anaerobic-aerobic treatment; the medical wastewater is treated by flocculation and sedimentation; after complete precipitation, the medical wastewater is discharged up to the standard, and the precipitation is collected and treated centrally. The method for treating medical wastewater provided by the present invention firstly sterilizes the medical wastewater, kills the pathogenic microorganisms in the medical wastewater, prevents the pathogenic microorganisms from spreading with the treatment process, and thus prevents the pathogenic microorganisms from causing secondary medical wastewater in subsequent batches pollution, and reduce the risk of the spread of pathogenic microorganisms; in the present invention, chemical sterilization is adopted, and the elimination efficiency of pathogenic microorganisms is high and the effect is good.

Description

technical field [0001] The invention relates to the technical field of medical wastewater treatment, in particular to a method for treating medical wastewater. Background technique [0002] With the vigorous development of my country's medical industry, the amount of medical wastewater is also increasing. Medical wastewater is mainly discharged from medical consultation rooms, laboratories, wards, laundry rooms and operating rooms, and its sources and components are very complex. Hospital wastewater contains a large number of pathogenic bacteria, viruses, chemical agents and heavy metal ions, such as drugs, disinfectants, diagnostic agents, detergents, as well as a large number of pathogenic microorganisms, parasite eggs and various viruses, such as roundworm eggs, hepatitis Viruses, Mycobacterium tuberculosis and Shigella etc. It has the characteristics of space pollution, acute infection and latent infection. Compared with industrial wastewater and domestic wastewater, ...

Claims

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Application Information

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IPC IPC(8): C02F9/14C02F101/20
CPCC02F9/00C02F1/001C02F1/50C02F1/52C02F1/76C02F1/78C02F2001/007C02F2101/20C02F2103/003C02F2303/04
Inventor 孙帝
Owner SICHUAN ZHICHUANG SPACE INCUBATOR MANAGEMENT CO LTD
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