Medical wastewater treatment method

A treatment method and wastewater technology, which is applied in the direction of pathogenic microbial wastewater treatment, biological water/sewage treatment, neutralized water/sewage treatment, etc., and can solve the problems of pathogenic microorganism retention, unreasonable treatment process, secondary pollution of medical wastewater, etc. , to achieve the effect of reducing suspended solids and COD, accelerating sedimentation speed and good disinfection effect

Inactive Publication Date: 2018-05-18
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 subsequen...

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] This embodiment provides a treatment method for medical wastewater. In the method, the medical wastewater is firstly disinfected to avoid secondary pollution caused by the further spread of pathogenic microorganisms to the next batch of medical wastewater. The treatment method of the medical wastewater provided by the present embodiment comprises the following steps:

[0036] 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.

[0037] 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 the primary filtration, the medical wastewater flows into the acid-base pool, and the large particles of impurities are collected and concentrated for treatment.

[0038] Step 3: A pH detector is installed at the outlet o...

Embodiment 2

[0042] This embodiment provides a treatment method for medical wastewater. In the method, the medical wastewater is firstly disinfected to avoid secondary pollution caused by the further spread of pathogenic microorganisms to the next batch of medical wastewater. The treatment method of the medical wastewater provided by the present embodiment comprises the following steps:

[0043] 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.

[0044]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 the primary filtration, the medical wastewater flows into the acid-base pool, and the large particles of impurities are collected and concentrated for treatment.

[0045] Step 3: A pH detector is installed at the outlet of the acid-base poo...

Embodiment 3

[0050] This embodiment provides a treatment method for medical wastewater. In the method, the medical wastewater is firstly disinfected to avoid secondary pollution caused by the further spread of pathogenic microorganisms to the next batch of medical wastewater. The treatment method of the medical wastewater provided by the present embodiment comprises the following steps:

[0051] 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.

[0052] 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 the primary filtration, the medical wastewater flows into the acid-base pool, and the large particles of impurities are collected and concentrated for treatment.

[0053] Step 3: A pH detector is installed at t...

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PUM

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Abstract

The invention discloses a medical wastewater treatment method and relates to the technical field of medical wastewater treatment. The medical wastewater treatment method comprises steps as follows: medical wastewater is collected and disinfected with a chemical disinfectant; the medical wastewater is subjected to primary filtration treatment to remove large-particle impurities; the pH of the medical wastewater is adjusted to 6.5-8; anaerobic-aerobic treatment is performed on the medical wastewater; flocculation and sedimentation are performed on the medical wastewater; the medical wastewater is discharged to reach the standard after complete precipitation, and precipitates are treated in a concentrated manner after being collected. According to the provided medical wastewater treatment method, firstly, the medical wastewater is disinfected and sterilized to kill pathogenic microorganisms in the medical wastewater, diffusion of the pathogenic microorganisms in the treatment process is avoided, secondary pollution caused by pathogenic microorganisms to medical wastewater in following batches is avoided, and the risk of diffusion of the pathogenic microorganisms is reduced. Disinfection and sterilization are performed in a chemical manner, the killing efficiency for the pathogenic microorganisms is high and the effect is good.

Description

technical field [0001] The invention relates to the field of medical wastewater treatment, in particular to a treatment method for 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 and chemical agents, 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 virus, tuberculosis bacteria and Shigella, etc. It has the characteristics of space pollution, acute infection and latent infection. Compared with industrial wastewater and domestic wastewater, it has the characteristics of sma...

Claims

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Application Information

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IPC IPC(8): C02F9/14C08F251/00C08F220/56
CPCC02F9/00C02F1/001C02F1/50C02F1/56C02F1/66C02F3/301C02F2103/003C08F251/00C08F220/56
Inventor 孙帝
Owner SICHUAN ZHICHUANG SPACE INCUBATOR MANAGEMENT CO LTD
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