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A method for the inactivation of Pseudomonas aeruginosa and Sphingomonas paucimobilis based on the growth loop of water supply network

A Pseudomonas aeruginosa, water supply pipe network technology, applied in the directions of oxidized water/sewage treatment, sterilization/microdynamic water/sewage treatment, etc., can solve the problem of Pseudomonas aeruginosa and Sphingomonas paucimobilis Poor inactivation effect and other problems, to achieve the effect of good disinfection effect, saving investment and operating costs, and low energy loss

Active Publication Date: 2017-10-03
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to solve the problem of poor inactivation effect of Pseudomonas aeruginosa and Sphingomonas paucimobilis in the existing drinking water, thereby providing a kind of Pseudomonas aeruginosa and Pseudomonas aeruginosa based on the growth ring of the water supply pipe network. Inactivation method of Sphingomonas paucimobilis

Method used

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Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment approach 1

[0010] Specific Embodiment 1: This embodiment is based on the inactivation method of Pseudomonas aeruginosa and Sphingomonas paucimobilis in the growth ring of the water supply pipe network, and the realization process is as follows:

[0011] Dosing α-FeOOH and H in the clear water tank of the urban water supply plant 2 o 2 , after adding α-FeOOH with a concentration of 0.01-0.05mol / L and H with a mass concentration of 0.1%-0.5% 2 o 2 , that is to complete the inactivation of Pseudomonas aeruginosa and Sphingomonas paucimobilis based on the growth loop of the water supply network.

[0012] In this embodiment, dosing α-FeOOH and H 2 o 2 After that, it can effectively kill Pseudomonas aeruginosa and Sphingomonas paucimobilis in drinking water within 2 hours.

[0013] The H in the clear water pool of this embodiment 2 o 2 It reacts with α-FeOOH to form a Fenton-like body, which can effectively kill bacteria in drinking water within 2 hours.

[0014] The reaction mechanism...

specific Embodiment approach 2

[0023] Specific embodiment two: the difference between this embodiment and specific embodiment one is: in the clean water tank of urban water supply plant, add α-FeOOH and H 2 o 2 , after adding α-FeOOH with a concentration of 0.02-0.04mol / L and H with a mass concentration of 0.2%-0.4% 2 o 2 . Other steps and parameters are the same as those in Embodiment 1.

specific Embodiment approach 3

[0024] Specific embodiment three: the difference between this embodiment and specific embodiment two is: add α-FeOOH and H in the clear water tank of urban water supply plant 2 o 2 , after adding α-FeOOH with a concentration of 0.03mol / L and a mass concentration of 0.3% H 2 o 2 . Other steps and parameters are the same as those in Embodiment 1.

[0025] Adopt the following examples to verify the beneficial effects of the present invention:

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Abstract

A method for the inactivation of Pseudomonas aeruginosa and Sphingomonas paucimobilis based on the growth ring of water supply pipe network, which involves two pathogenic bacteria Pseudomonas aeruginosa and Sphingomonas paucimobilis in drinking water Bacteria inactivation method. It aims to solve the problem of poor inactivation effect of Pseudomonas aeruginosa and Sphingomonas paucimobilis in existing drinking water. Method: Add α‑FeOOH and H2O2 to the clean water tank of the city water supply plant, and the process is completed. The cost of H2O2 in the present invention is low, and the α-FeOOH material is cheap and easy to obtain, and it is the main component of the growth ring. After one addition, it can continue to exist in a large amount in the urban water supply network. In the later stage, only H2O2 needs to be added. The requirements are simple, the energy loss is low, and the input and operating costs are saved. The Fentonoid composed of α‑FeOOH and H2O2 has obvious inactivation effect on Pseudomonas aeruginosa and Sphingomonas paucimobilis present in the filtered water.

Description

technical field [0001] The invention relates to an inactivation method for two pathogenic bacteria, pseudomonas aeruginosa and sphingomonas paucimobilis, in drinking water. Background technique [0002] Pseudomonas aeruginosa is a common opportunistic pathogen. When the human body’s resistance decreases, it can cause infections in respiratory tract trauma, wounds and other parts, and can produce a variety of pathogenic substances. The exotoxin A produced by it is an important pathogenic bacteria. Disease or even lethal substances, which can cause local or systemic diseases after entering sensitive cells. Moreover, Pseudomonas aeruginosa has strong drug resistance, is widely distributed in water, requires low growth conditions, and has strong reproductive ability. It has strong resistance to physical and chemical factors such as disinfectants, drying, and ultraviolet light, and it is difficult to completely kill it. [0003] Sphingomonas paucimobilis is an opportunistic path...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F1/50C02F1/72
Inventor 钟丹马文成袁一星王自强李百玲
Owner HARBIN INST OF TECH
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