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Drinking water disinfection by-product detection and removal method

A technology for disinfection by-products and drinking water, used in chemical instruments and methods, measuring devices, multi-stage water treatment, etc., can solve problems such as inability to detect and remove in time, low water quality, etc., to reduce production and improve safety. , to ensure the effect of safety

Inactive Publication Date: 2019-11-15
丽江尚源水业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the deficiencies in the prior art, the present invention provides a method for detecting and removing disinfection by-products of drinking water to solve the problem that existing drinking water disinfection methods are prone to produce a large number of by-products, and cannot be detected and removed in time, resulting in low water quality The problem

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] A method for detecting and removing disinfection by-products in drinking water, the specific steps are as follows: Step 1: coagulation and pre-disinfection: add coagulant to the coagulation tank and simultaneously introduce chlorine gas, the amount of chlorine gas introduced is five times the normal disinfection amount One-third, the coagulant is added by spraying, so that the coagulant is evenly distributed in the coagulation tank, the water temperature and pH of drinking water are detected, and the water temperature and pH are adjusted in time;

[0025] Step 2: Sedimentation: Radial flow sedimentation tank is used, drinking water enters the tank from the inlet pipe in the center of the sedimentation tank, flows slowly along the radius direction to the periphery of the tank, and the suspended matter settles during the flow, and enters the sludge hopper along the slope of the bottom of the tank for clarification Water overflows from the pool to the filter pool;

[0026]...

Embodiment 2

[0038] Embodiment two: the difference between this embodiment and embodiment one is:

[0039] A method for detecting and removing disinfection by-products in drinking water, the specific steps are as follows: Step 1: Coagulation and pre-disinfection: Add coagulant to the coagulation tank and simultaneously introduce chlorine gas, the amount of chlorine gas introduced is four times the normal disinfection amount One-third, the coagulant is added by spraying, so that the coagulant is evenly distributed in the coagulation tank, the water temperature and pH of drinking water are detected, and the water temperature and pH are adjusted in time;

[0040] Step 2: Sedimentation: Radial flow sedimentation tank is used, drinking water enters the tank from the inlet pipe in the center of the sedimentation tank, flows slowly along the radius direction to the periphery of the tank, and the suspended matter settles during the flow, and enters the sludge hopper along the slope of the bottom of...

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PUM

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Abstract

The invention relates to a drinking water disinfection by-product detection and removal method. The method specifically includes the steps of: 1. coagulation and pre-disinfection; 2. precipitation; 3.filtration; 4. detection; 5. disinfection and secondary chlorination; 6. oxidation; 7. membrane separation; and 8. isolation storage. The method provided by the invention greatly reduces the chlorineadding amount during drinking water disinfection, also adopts a combined disinfection way, can greatly reduce the production of disinfection by-products, carries out two detections, can ensure the accuracy of the detection result, can remove 90% or more of the disinfection by-products by ozone oxidation, activated carbon adsorption and ultrafiltration membrane filtration, guarantees the drinkingwater safety, and greatly improves the safety of water quality.

Description

technical field [0001] The invention relates to a method for detecting and removing disinfection by-products in drinking water, belonging to the field of drinking water treatment. Background technique [0002] Disinfection of drinking water is the greatest progress made by human beings in the field of public health. The main purpose is to control the pathogenic bacteria in water and make the water quality meet the health requirements of human beings. Eliminate pathogens in water, thereby preventing the spread and prevalence of water-borne infectious diseases. At present, the methods used for disinfection of drinking water in the world mainly include free chlorine, chloramine, chlorine dioxide, ultraviolet rays and ozone disinfection. Among them, the chlorination disinfection method is to use The earliest and still widely used traditional model in many countries has become the main measure to ensure the epidemiological safety of drinking water. At present, most water plants i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/08G01N30/02
CPCC02F1/001C02F1/32C02F1/444C02F1/52C02F1/76C02F1/763C02F1/78C02F9/00C02F2001/007C02F2209/02C02F2209/06C02F2301/08C02F2303/04G01N30/02
Inventor 张明
Owner 丽江尚源水业有限公司