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Composite inorganic water purifying agent and preparation method thereof

A water purifying agent, inorganic technology, applied in the direction of flocculation/sedimentation water/sewage treatment, etc., can solve the problems of high cost of polyaluminium chloride, loose sludge, etc., and achieve low equipment erosion, small drop in pH value and alkalinity , fast forming effect

Inactive Publication Date: 2012-07-04
陕西蓝清环境科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the cost of polyaluminum chloride is high, and the sludge is relatively loose

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Follow these steps:

[0030] (1) Open the inlet valve, inject 240 kg of water into the reactor, start the acid mist recovery system, and after it is in normal working condition, open the valve of the hydrochloric acid metering tank to slowly flow hydrochloric acid into the reactor, so that the hydrochloric acid and Mix the dilution water thoroughly;

[0031] (2), start the agitator, open the valve of the hydrochloric acid metering tank and slowly inject 1300 kilograms of hydrochloric acid in the reactor, so that the hydrochloric acid and water are fully mixed;

[0032] (3) Turn on the feeding system and evenly add the masterbatch at a rate of 17.5 kg per minute. The masterbatch includes 675 kg of polyaluminum chloride and 25 kg of rare earth. The time for adding the masterbatch is 40 minutes, and the liquid in the reactor is controlled. The surface should not rise to more than 80% of the volume of the reactor; and continue to stir for 60 minutes after the masterbatch i...

Embodiment 2

[0036] Follow these steps:

[0037] (1) Open the inlet valve, inject 240 kg of water into the reactor, start the acid mist recovery system, and after it is in normal working condition, open the valve of the hydrochloric acid metering tank to slowly flow hydrochloric acid into the reactor, so that the hydrochloric acid and Mix the dilution water thoroughly;

[0038] (2), start the agitator, open the valve of the hydrochloric acid metering tank and slowly inject 1300 kilograms of hydrochloric acid in the reactor, so that the hydrochloric acid and water are fully mixed;

[0039] (3) Turn on the feeding system and evenly add the masterbatch at a rate of 15.5 kg per minute. The masterbatch includes 675 kg of polyaluminium chloride and 25 kg of rare earth. The time for adding the masterbatch is 45 minutes, and the liquid in the reactor is controlled. The surface should not rise to more than 80% of the volume of the reactor; and continue to stir for 60 minutes after the masterbatch ...

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PUM

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Abstract

The invention discloses a composite inorganic water purifying agent and a preparation method thereof. The composite inorganic water purifying agent comprises water, hydrochloric acid, polyaluminium chloride, rare earth and activated water. The preparation method comprises the following steps of: (1), injecting the water into a reaction kettle and starting an acid mist recovery system; (2) starting a stirrer, injecting the hydrochloric acid and mixing completely; (3) adding the polyaluminium chloride and the rare earth and stirring continuously; (4) turning off the acid mist recovery system; and (5) injecting the activated water and stirring continuously. The composite inorganic water purifying agent prepared by the method is low in cost and has a good water purification effect.

Description

technical field [0001] The invention relates to a composite inorganic water purifying agent and a preparation method thereof. Background technique [0002] Polyaluminum chloride is an inorganic polymer flocculant, through the action of hydroxide ion functional groups and polyvalent anion polymeric functional groups, it produces inorganic polymers with large molecular weight and high charge. It can adapt to the acid-base environment with a pH range of 5.0-9.0, and has the following uses: 1. It can be applied to the treatment of river water, lake water and groundwater; 2. It can be applied to the treatment of industrial water and industrial circulating water; 3. It can be applied to Wastewater treatment; 4. It can be applied to the recovery of coal mine flushing wastewater and porcelain industrial wastewater; 5. It can be used in printing factories, printing and dyeing factories, leather factories, breweries, meat processing factories, pharmaceutical factories, paper mills, co...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/52
Inventor 王兴中
Owner 陕西蓝清环境科技有限公司
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