Method for detecting effectiveness of domestic drinking water disinfection process

A technology for domestic drinking water and disinfection methods, which is applied in the field of timeliness evaluation and detection, to achieve stable detection results, short detection time, accurate dosing time and dosage

Active Publication Date: 2017-01-04
北京市自来水集团有限责任公司技术研究院
View PDF0 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The purpose of the invention is to provide a method for detecting the timeliness of the drinking water disinfection method for the technical problems existing in the timeliness evaluation method of the existing drinking water disinfection treatment process. The detection method of the present invention utilizes flow cytometry to detect The microbial content of purified water treated by the disinfection process of the water supply plant within a period of time; the method for evaluating the disinfection method of drinking water in the present invention is simple and easy to operate, and the evaluation and monitoring results are accurate

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method for detecting effectiveness of domestic drinking water disinfection process
  • Method for detecting effectiveness of domestic drinking water disinfection process
  • Method for detecting effectiveness of domestic drinking water disinfection process

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0066] Example 1 Timeliness Monitoring of Conventional Sodium Hypochlorite Disinfection Process

[0067] 1. Water sample collection

[0068] Use sterilized sampling bottles to collect the effluent from the carbon pool of a waterworks, and the water sample in each sampling bottle is 500ml;

[0069] 2. Water sample disinfection treatment

[0070] The collected water samples were divided into 6 groups, and sodium hypochlorite disinfectant was added sequentially. The concentrations of sodium hypochlorite disinfectant added in groups 1-6 were 0.0mg / L, 0.2mg / L, 0.4mg / L, 0.6mg / L, 0.8 mg / L and 1.0mg / L, and mark accordingly; add disinfectant and mix evenly, let stand still for 30 minutes, carry out disinfection treatment, and obtain disinfection water samples;

[0071] In the embodiment of the present invention, sodium hypochlorite disinfectant is added to the effluent water of the charcoal pond of the waterworks to simulate the sodium hypochlorite disinfection process of the waterwo...

Embodiment 2

[0093] Example 2 Timeliness Monitoring of Ultraviolet-Sodium Hypochlorite Combined Disinfection Process

[0094] 1. Water sample collection

[0095] The water samples were collected from the effluent of an ultraviolet disinfection system installed in a waterworks. The ultraviolet disinfection system uses low-pressure ultraviolet mercury lamps for irradiation and disinfection. The ultraviolet disinfection dose of the equipment is 40mJ / cm 2 , the water sample is collected with a high-temperature sterilized sampling bottle, and the water sample in each sampling bottle is 500mL;

[0096] 2. Water sample disinfection treatment

[0097] The collected water samples were divided into 6 groups, and sodium hypochlorite disinfectant was added sequentially. The concentrations of sodium hypochlorite disinfectant added in groups 1-6 were 0.0mg / L, 0.2mg / L, 0.4mg / L, 0.6mg / L, 0.8 mg / L and 1.0mg / L; and mark accordingly; add disinfectant and mix evenly, let stand still for 30 minutes, carry ou...

Embodiment 3

[0112] Example 3 Timeliness Monitoring of Ultraviolet-Sodium Hypochlorite Combined Disinfection Process

[0113] 1. Water sample collection

[0114] The water samples were collected from the effluent of a medium-pressure ultraviolet disinfection system in a waterworks. The ultraviolet disinfection system uses medium-pressure mercury lamps for irradiation and disinfection. The ultraviolet disinfection dose of the equipment is 40mJ / cm 2 , Water samples are collected using high-temperature sterilized sampling bottles, and the water sample in each sampling bottle is 500mL.

[0115] 2. Water sample disinfection treatment

[0116] The collected water samples were divided into 6 groups, and sodium hypochlorite disinfectant was added sequentially. The concentrations of sodium hypochlorite disinfectant added in groups 1-6 were 0.0mg / L, 0.2mg / L, 0.4mg / L, 0.6mg / L, 0.8 mg / L and 1.0mg / L; and mark accordingly; add disinfectant and mix evenly, let stand still for 30 minutes, carry out disi...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses a method for detecting effectiveness of a domestic drinking water disinfection process. The method comprises the step of detecting the microbial content in purified water treated by a water supply plant disinfection technique by using a flow cytometer. The method disclosed by the invention is simple and feasible, is simple to operate, and can quickly perform quantitative determination to obtain accurate evaluation and monitoring results. The method for detecting the effectiveness of the purified water disinfection technique can master the subsequent addition time and addition amount of sodium hypochlorite more accurately, is more scientific and effective than the existing disinfectant addition mode, and can save a certain consumption of the disinfectant, thereby lowering the operating cost of the water supply plant.

Description

technical field [0001] The invention relates to evaluating and detecting the effectiveness of a disinfection method for water treatment, in particular to a method for evaluating and detecting the timeliness of a drinking water disinfection treatment process, which belongs to the field of water treatment. Background technique [0002] An effective disinfection process is an important guarantee for the safe use of drinking water. In recent years, ultraviolet disinfection has gradually become a mainstream disinfection process due to its advantages of high efficiency, good broad-spectrum, and no disinfection by-products. Compared with conventional disinfection processes, ultraviolet disinfection also has obvious advantages in inactivating some chlorine-resistant microorganisms, thus more effectively ensuring the safety of microorganisms in water. The most important indicator for evaluating the disinfection effect is the evaluation of the degree of microbial removal or inactivat...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): C12Q1/06
CPCC12Q1/06C12Q2304/10
Inventor 黄慧婷顾军农曹新垲王敏李玉仙柴文
Owner 北京市自来水集团有限责任公司技术研究院
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap