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A kind of composite water purifying agent and preparation method thereof

A water purifying agent and composite technology, which is applied in adsorption water/sewage treatment, flocculation/sedimentation water/sewage treatment, etc., to achieve important market application value, good combined adsorption effect, and wide application range.

Active Publication Date: 2016-08-24
广州市芦苇环保科技有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] For the increasing pollution of environmental endocrine disrupting substances, the traditional four-stage water treatment process of coagulation-sedimentation-filtration-disinfection can no longer cope with the current water pollution problem

Method used

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preparation example Construction

[0022] According to an embodiment of the present invention, a composite water purifying agent and a preparation method thereof, the components of the composite water purifying agent in a weight ratio include: 13-18 parts of activated carbon, 20-25 parts of diatomaceous earth, polychlorinated Aluminum 18-25 parts, polyacrylamide 7-13 parts and polyethylene glycol 7-10 parts. The preparation method includes the following steps:

[0023] ① Mix the 20-25 parts of diatomaceous earth and the 13-18 parts of activated carbon thoroughly to obtain a mixture;

[0024] ② Add 150-200 parts of deionized water to step ①, the water temperature is 45-50 ℃, and mix and stir evenly;

[0025] ③After mixing 7 to 13 parts of polyacrylamide and the 7 to 10 parts of polyethylene glycol at 50 to 55°C and stirring uniformly, add the activated carbon and diatomaceous earth as described in step ② under stirring conditions Stir at high speed in the aqueous solution of the mixture;

[0026] ④ Dissolve 18-25 part...

Embodiment 1

[0033] The preparation method of the composite water purifying agent includes the following steps:

[0034] ① Mix the 21-22 kg diatomaceous earth and the 17 kg activated carbon thoroughly to obtain a mixture;

[0035] ②Add 150~190kg deionized water to step ①, the water temperature is 48℃, and mix and stir evenly;

[0036] ③After mixing 8kg of cationic polyacrylamide and the said 8kg of polyethylene glycol 400 at 53~55℃ and stirring uniformly, add the aqueous solution of step ② with the mixture of activated carbon and diatomaceous earth under stirring conditions Medium and high speed mixing;

[0037] ④ Dissolve 18-25 parts of polyaluminum chloride in 100-170 parts of deionized water, then slowly add it to the substance under high-speed stirring in step ③, and stir at 50-55°C for 20-30 minutes to obtain The compound type water purifying agent semi-finished product;

[0038] ⑤Remove the water in the semi-finished product of the composite water purifying agent in step ④ to obtain a solid,...

Embodiment 2

[0040] The preparation method of the composite water purifying agent includes the following steps:

[0041] ① Mix the 23kg of diatomaceous earth and the 16kg of activated carbon thoroughly to obtain a mixture;

[0042] ②Add 170~200kg of deionized water to step ①, the water temperature is 47℃, and mix and stir evenly;

[0043] ③After mixing 9kg of cationic polyacrylamide and the 7kg polyethylene glycol 400 at 50~52℃ and stirring uniformly, add the aqueous solution of the mixture of activated carbon and diatomaceous earth described in step ② under stirring conditions Medium and high speed mixing;

[0044] ④ Dissolve 18-25 parts of polyaluminum chloride in 100-170 parts of deionized water, then slowly add it to the substance under high-speed stirring in step ③, and stir at 50-55°C for 20-30 minutes to obtain The compound type water purifying agent semi-finished product;

[0045] ⑤Remove the water in the semi-finished product of the composite water purifying agent in step ④ to obtain a so...

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Abstract

The invention relates to a composite water purifying agent and a preparation method thereof. The water purifying agent contains activated carbon, diatomite, polymeric aluminum, polyacrylamide and polyethylene glycol. The preparation method comprises the following steps: 1, mixing the diatomite with the activated carbon; 2, adding deionized water, and uniformly stirring; 3, after mixing the polyacrylamide with the polyethylene glycol and uniformly stirring, adding into the water solution of the activated carbon and diatomite mixture; 4, dissolving the polymeric aluminum into the deionized water, then slowly adding into a mixture obtained in the step 3 for stirring to obtain a composite water purifying agent semi-finished product; 5, removing water in the composite water purifying agent semi-finished product to obtain the composite water purifying agent. The water purifying agent prepared according to the method combines the diatomite with the activated carbon, retains the adsorption capacity to organic small molecules in water of the activated carbon, and can also adsorb macromolecular organic matters in water due to the addition of the diatomite. The polyacrylamide and the polymeric aluminum can quickly flocculate granular dregs to achieve the action of purifying water.

Description

Technical field [0001] The invention relates to a water purifying agent in the field of water purification, in particular to a composite water purifying agent and a preparation method thereof. Background technique [0002] At present, with the rapid advancement of my country's industrialization process, environmental pollution, especially the pollution of water resources, is becoming more and more serious, seriously affecting people's health and living environment. The use of water purifiers to coagulate industrial wastewater and urban sewage is one of the most commonly used methods in water treatment, and it is also an important means to eliminate pollution and protect the environment. [0003] In recent years, extensive investigations and studies have been carried out on the endocrine disrupting activity of environmental chemicals. A large number of animal epidemiological data indicate that many environmental chemicals can interfere with the endocrine function of animals, and cl...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F1/28C02F1/56C02F1/52
Inventor 李莉红刘学军
Owner 广州市芦苇环保科技有限责任公司
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