Medical wastewater treatment system

A wastewater treatment system and outlet pipe technology, applied in the direction of pathogenic microbial wastewater treatment, multi-stage water treatment, water/sewage treatment, etc., can solve the problems of secondary pollution of medical wastewater, retention of pathogenic microorganisms, unreasonable treatment process, etc. Achieve the effect of reducing the risk of diffusion, avoiding secondary pollution, and good disinfection effect

Inactive Publication Date: 2018-03-30
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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  • Medical wastewater treatment system

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Embodiment 1

[0038] Such as figure 1 As shown, the present embodiment provides a treatment system for medical wastewater, which includes sequentially connected disinfection pond 3, regulating pond 4, acid-base pond 5, anaerobic pond 6, aerobic pond 7, flocculation sedimentation pond 8 and sludge pool 9, the water inlet pipe 1 is connected to the disinfection pool 3, and the water outlet pipe 2 is connected to the flocculation sedimentation tank 8.

[0039] Disinfectant pool 3 is provided with disinfectant storage device 31, is stored with disinfectant in disinfection pool storage device 31, and the disinfectant used in the present invention is chemical disinfectant, as chlorine dioxide, ozone, any one in potassium hydrogen persulfate kind. Disinfection tank 3 is connected with regulating tank 4 through valve 32 , and the surface area of ​​valve 32 is large enough so that all materials in the regulating tank enter disinfection tank 4 .

[0040] A grid 41 is arranged in the disinfection ta...

Embodiment 2

[0044] This embodiment provides a new type of sewage flocculant, which is a pullulan-polyacrylamide graft polymer. The flocculant has large particles, fast settling speed, and branches, which can capture multiple suspensions from different directions. Particles to obtain larger flocs, thereby effectively reducing the COD of medical wastewater. The sewage flocculant is prepared through the following steps:

[0045] Step 1: disperse amylopectin in water to form a 0.1-0.2 g / mL amylopectin solution. Take by weighing cerium nitrate according to the ratio of 3-4:50 according to the mass ratio of cerium nitrate and pullulan, and dissolve in water to form a saturated solution, add the saturated solution of cerium nitrate in the pullulan solution; 400-600r / min, Heat in a water bath at 45-55°C for 5-10min.

[0046] Step 2: Weigh acrylamide according to the mass ratio of acrylamide to pullulan as 2:3-5, disperse it in water, heat to dissolve, and add the pullulan solution at a uniform ...

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Abstract

The invention discloses a medical wastewater treatment system, which relates to the field of medical wastewater treatment. The medical wastewater treatment system provided by the present invention includes a water inlet pipe, a water outlet pipe, and a disinfection tank, a regulating tank, an acid-base tank, an anaerobic tank, an aerobic tank, a flocculation sedimentation tank and a sludge tank connected in sequence; the water inlet pipe is connected to To the disinfection tank, the water outlet pipe is connected to the flocculation sedimentation tank, and the conditioning tank is provided with a material pipeline connected to the sludge tank. In the medical wastewater treatment system provided by the present invention, the disinfection tank is set before other treatment tanks, and the medical wastewater is first disinfected and sterilized, so as to prevent the pathogenic microorganisms in the medical wastewater from spreading in the subsequent devices with the treatment process and affecting the next batch of wastewater. Medical wastewater causes secondary pollution and reduces the risk of spreading pathogenic microorganisms; using chemical methods to kill pathogenic microorganisms, the disinfection effect is good.

Description

technical field [0001] The invention relates to the field of medical wastewater treatment, in particular to a medical wastewater treatment system. 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 small w...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/04C02F1/56
CPCC02F9/00C02F1/001C02F1/50C02F1/5263C02F1/5281C02F1/56C02F1/66C02F3/02C02F3/28C02F2103/003C02F2301/08
Inventor 孙帝
Owner SICHUAN ZHICHUANG SPACE INCUBATOR MANAGEMENT CO LTD
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