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Preparation method and application of water treatment agent

A technology of water treatment and chemicals, applied in water/sewage treatment, adsorption water/sewage treatment, water/sludge/sewage treatment, etc., can solve the problems of increased sludge treatment cost, high price, and increased sludge volume, etc. Achieve the effects of avoiding the use of hazardous chemicals, reducing production costs, and saving investment

Inactive Publication Date: 2017-06-30
常涛
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to solve the problem that the adsorbent itself is expensive, the amount of sludge doubles after adding too much, and the cost of sludge treatment is also increased, the present invention proposes a preparation method and application of a water treatment agent, which realizes adsorption and mixing. Unity of coagulation function

Method used

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  • Preparation method and application of water treatment agent
  • Preparation method and application of water treatment agent
  • Preparation method and application of water treatment agent

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] Example 1: Treatment of high fluoride and high arsenic drinking water sources

[0040] (1) Add 15 parts of bentonite from the outlet of silo 1, and 0.45 parts of organic modifier PDMDAAC (polydimethyldiallyl ammonium chloride) in organic modifier storage tank 2 to the SLG type continuous powder Organic modification is carried out in the surface modification machine 3 to obtain an organic modified powder;

[0041] (2) 100 points of polyferric sulfate (solid content 45%) solution is squeezed into the reaction tank 5 from the drug storage tank 4, and then 15 parts of organically modified powders are sent into the reaction tank from the modification machine 3 ( Hydrophobic adsorption part), another 15 parts of bentonite are directly sent to the reaction tank (hydrophilic adsorption part) from the outlet of feed bin 1. Mix and stir for inorganic modification to obtain water treatment chemicals;

[0042] (3) The water treatment agent is put into the process pipeline through...

Embodiment 2

[0044] Embodiment 2: Treatment of high algae and high turbidity reservoir water

[0045] (1) Add 50 parts of diatomite from silo 1, cationic PAM in organic modifier storage tank 2 to PSC type powder surface modifier 3 for organic modification, and the dosage is the quality of diatomite 2% of the number of parts to obtain diatomite after organic modification;

[0046] (2) 100 parts of polyaluminum chloride (30% solid content) solution is injected into the reaction tank 5 from the drug storage tank 4; for enhancing the turbidity removal effect, the cationic PAM is injected from the organic modifier storage tank 2 Enter the reaction tank 5, the mass fraction is 0.5% of the polyaluminium chloride solution quality, the reaction tank is stirred, and then 50 parts of diatomite after organic modification are sent into the reaction tank 5 from the modification machine 3, and stirred to obtain the water treatment agent ;

[0047] (3) Put the water treatment agent into the process pipe...

Embodiment 3

[0049] Embodiment 3: Treatment of low-temperature and low-turbidity POPS polluted reservoir water

[0050] (1) 80 parts of attapulgite are added to the PSC type powder surface modifier 3 from silo 1, and the chitosan in the organic modifier storage tank 2 is organically modified, and the organic modifier is a consumption of 2% of the attapulgite mass fraction;

[0051] (2) 100 parts of polyferric chloride (solid content 50%) solutions are squeezed into reaction tank 5 from medicine storage tank 4; Into the reaction tank 5 to stir, carry out the inorganic modification of attapulgite, and obtain the water treatment agent;

[0052] (3) After measuring the water treatment agent, the dosing device 6 is put into the process pipeline, and enters the next step of the water treatment process 7, and the dosage is 10L / KT.

[0053] In Example 3, the ferric chloride mixed gel has good settling property and good effect of removing organic matter; attapulgite CEC has high cation exchange c...

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Abstract

The invention relates to the technical field of water treatment. In order to solve the problems that an adsorbent is expensive, and the sludge quantity is doubly increased and the sludge treatment cost is increased after excessive adsorbents are added, the invention provides a preparation method and application of a water treatment agent. The preparation method comprises the following steps: performing organic modification on powder and an organic modifier by a modifying machine to obtain organic modified powder; adding an inorganic modifier and an organic modifier sequentially or simultaneously, stirring, adding the organic modified powder, or adding an inorganic modifier and an organic modifier sequentially or simultaneously, stirring, adding the organic modified powder and stirring to obtain the water treatment agent. Adsorption and coagulation functions are unified, the use efficiency of the water treatment agent is greatly improved, the cost is reduced, and the equipment management difficulty is reduced.

Description

technical field [0001] The invention relates to the technical field of water treatment, in particular to a preparation method and application of a water treatment agent. Background technique [0002] Due to the complex situation of polluted water bodies, the treatment methods are also different. Among them, macromolecular pollutants and colloids can be removed by coagulation and precipitation, while small molecular pollutants are very difficult to remove. At present, the removal of small molecular pollutants gives priority to the addition of adsorbents. In the prior art, the dosing of adsorbent and coagulant needs to be separated, and multiple dosing points are set or added after a period of time, mainly to prevent the colloid (<0.45um) formed after the addition of macromolecular pollutants and coagulant colloid, >0.45um is particle) on the surface of the adsorbent, the adsorption occurs, blocking the adsorption channel of small molecular pollutants, this phenomenon i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/22B01J20/30C02F1/28C02F1/52C02F101/14C02F101/30C02F101/34
CPCB01J20/22C02F1/285C02F1/5245C02F2101/103C02F2101/14C02F2101/30C02F2101/345
Inventor 常涛
Owner 常涛
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