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Sterilizing and filtering method for microbe poison polluted water

A filtering method and a technology for polluting water, which can be applied in the direction of adding substances to water/sewage treatment, sterilization/microdynamic water/sewage treatment, water/sewage treatment, etc., and can solve the problem of residual chlorine that cannot be drunk

Inactive Publication Date: 2007-05-30
侯立安
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a method for disinfection and filtration of water contaminated by microbial poisons, so as to solve the problem that the existing method contains a large amount of residual chlorine and cannot be drunk after disinfection.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0008] Embodiment one disinfectant bactericidal test:

[0009] 1. Test method: The concentrations of the three-in-one disinfectant used in the test (in terms of available chlorine) are 25, 50, and 100 mg / L respectively. The action time is 5, 10 and 20 minutes. Initial bacterial quantity: Bacillus anthracis propagule is 1250000cfu / ml; Bacillus anthracis spore is 720000cfu / ml. The neutralizing agent was phosphate buffered saline containing 0.5% sodium thiosulfate and 0.5% Tween 80.

[0010] 2. Test results: The test shows that when the three-in-two disinfectant is used to disinfect artificially contaminated water samples, when the effective chlorine content in the disinfection system is above 25mg / L, the initial bacterial content in the water sample is 1250000cfu / ml. Bacillus anthracis propagules, 100% kill (Table 1). When the available chlorine content in the disinfection system is 50mg / L for 20min, 100mg / L for 10min can kill 99.99% of Bacillus anthracis spores; the availabl...

Embodiment 2

[0017] Embodiment two Ultrafiltration and nanofiltration water purification device filtration sterilization test:

[0018] 1. Preparation of artificially contaminated water samples: 50L tap water was added to the test water tank, and 1ml of 0.5% sodium thiosulfate was added at the same time to neutralize the residual chlorine in the tap water. Add the suspension of Bacillus anthracis spores or fresh propagule suspension into the water tank, and mix well to make the bacteria content 10000~50000cfu / 100ml.

[0019] 2. Filtration sterilization test: According to the operating procedures of the water purifier, filter the artificially contaminated water samples in the water tank. The test water samples were filtered through primary (ultrafiltration) and secondary (nanofiltration) respectively. During the entire filtration process, use sterile triangular flasks to collect water samples after primary and secondary filtration for viable bacterial counting and culture. At the same tim...

Embodiment 3

[0031] Embodiment three adopts three-in-two disinfectant disinfection and ultrafiltration nanofiltration water purification device filtration sterilization test:

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PUM

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Abstract

Disclosed is a method for disinfecting and filtering water contaminated by microbiological toxics characterized in that, the method consists of charging a definite quantity of chlorination solution and a minute quantity of neutralization agent, interacting 5-30 minutes, carrying out a first level hyperfiltration and a second level filtration degerming.

Description

technical field [0001] The invention relates to a method for disinfecting and filtering water polluted by microbial poisons, which is mainly used for purifying water polluted by biological warfare agents. Background technique [0002] The existing method of disinfection and filtration of water contaminated by microbial poisons generally adopts chemical disinfection, and its disadvantage is that it contains a large amount of residual chlorine after disinfection and cannot be drunk. Contents of the invention [0003] The purpose of the present invention is to provide a method for disinfection and filtration of water contaminated by microbial poisons, so as to solve the problem that the existing method contains a large amount of residual chlorine and cannot be drunk after disinfection. [0004] The technical scheme of the present invention is: firstly put 25mg / L~100mg / L chlorine-containing disinfectant and a small amount of neutralizer into the polluted water; after the inter...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F1/50C02F1/76C02F1/28C02F1/58C02F1/68C02F1/44B01D61/00C02F1/72
Inventor 侯立安左莉郭珍珍
Owner 侯立安
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