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Drinking water purification method

A drinking water and elimination technology, used in chemical instruments and methods, water pollutants, water/sewage treatment, etc., can solve the problems of slow sludge sedimentation and long discharge cycle of treated materials, and achieve simple purification methods and shorten clarification. The effect of low time and processing cost

Inactive Publication Date: 2017-05-31
BENGBU KUNPENG FOOD & BEVERAGE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Defluorination of drinking water mainly adopts precipitation method, but there are disadvantages of slow sedimentation of sludge and long discharge cycle of treated substances

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Embodiment 1, a kind of drinking water purification method, comprises the following steps,

[0029] (1) Eliminate microorganisms: inoculate pullulanase into drinking water at a ratio of 2%, control the pressure at 550MPa, temperature 58°C, and keep the pressure for 100 minutes;

[0030] (2) Eliminate pathogenic bacteria: Crush stamens to 100 mesh, mix with drinking water and amylose in a weight ratio of 5:1000:1, and inject krypton gas into tap water at a ventilation rate of Helium is introduced into the tap water at a rate of 5ml / s, and the treatment lasts for 10 minutes;

[0031] (3) Fluoride removal: crush the cyanite to 80 mesh, mix it with drinking water at a weight ratio of 1:800, and pass it into supercritical CO 2 In the reaction kettle, stir and react for 3 hours at a temperature of 40°C and a pressure of 8 MPa;

[0032] (4) Preliminary purification of water: inoculate amylase at a rate of 2% in drinking water, adjust the pH to 5.2, stir and react at a stirri...

Embodiment 2

[0036] Embodiment 2, a kind of drinking water purification method, comprises the following steps,

[0037] (1) Eliminate microorganisms: inoculate pullulanase into drinking water at a ratio of 2%, control the pressure at 600MPa, temperature 60°C, and hold the pressure for 120 minutes;

[0038] (2) Elimination of pathogenic bacteria: Crush stamens to 120 mesh, mix with drinking water and amylose in a weight ratio of 8:1000:1.5, and inject krypton gas into the tap water at a rate of per cubic meter Helium gas is introduced into the tap water body at a rate of 8ml / s, and the treatment lasts for 12 minutes;

[0039] (3) Fluoride removal: crush the cyanite to 90 mesh, mix it with drinking water at a weight ratio of 1:1000, and pass it into supercritical CO 2 In the reaction kettle, stir and react for 5 hours at a temperature of 50°C and a pressure of 12MPa;

[0040] (4) Preliminary purification of water: inoculate amylase at a rate of 2% in drinking water, adjust the pH to 5.5, s...

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Abstract

The invention relates to the technical field of drinking water treatment and particularly relates to a drinking water purification method. The method comprises the following steps: inoculating pullulanase into drinking water for high-pressure processing to kill microorganisms, crushing marmor serpentinatum and mixing with the drinking water and straight-chain starch evenly; introducing krypton into the drinking water, killing pathogenic bacteria, crushing lapis chloriti and mixing with the drinking water; introducing a mixture into a supercritical CO2 reaction kettle to remove fluorine; inoculating amylase into the drinking water for preliminary purification of water; feeding the drinking water into a clarification tank for high-pressure pressure-holding clarification and inoculating laccase into the drinking water for decolorization; and finally carrying out flash evaporation for enzyme deactivation. The total bacterial count in the finally obtained drinking water is lower than or equal to 15CFU / ml; coliform and pathogenic bacterium are not detected; the fluorine content is lower than 0.7mg / L; a foreign flavor is avoided; the 'b' reading of a hunter chromometer is smaller than 5.0; and the NTU turbidity value is lower than 5.0.

Description

technical field [0001] The invention relates to the field of drinking water treatment, in particular to a drinking water purification method. Background technique [0002] Water is the material basis for the survival of human beings and all living things. Water can be renewed through its own circulation and human treatment. However, with the rapid development of industrialization and urbanization, the intensity of exploitation of natural resources is increasing, and the discharge of pollutants is increasing rapidly. Nearly half of the seven major water systems in the country are polluted, and the degree of eutrophication in lakes and reservoirs has increased, making it difficult to solve the problem of safe drinking water in areas where the tap water network has not yet been popularized. , Disinfection, and defluoridation can only be supplied. At present, ozone is mainly used to eliminate microorganisms in water, but it is easy to produce bromate. Chlorine is used to remove...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/14C02F101/14
CPCC02F9/00C02F1/06C02F1/281C02F1/50C02F1/66C02F3/342C02F2001/007C02F2101/14
Inventor 姜阔
Owner BENGBU KUNPENG FOOD & BEVERAGE
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