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Pollution removing composite medicament

A technology of compounding agent and silicate polymer, applied in the field of decontamination agents, can solve the problems of small molecular weight, complicated control and poor effect, etc.

Inactive Publication Date: 2007-06-20
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

CN1103628A discloses a "drinking water decontamination technology of permanganate compound agent". Since permanganate compound agent and coagulant need to be added separately, it has wasteful equipment, complicated control, poor effect and low molecular weight and many other disadvantages

Method used

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Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment approach 1

[0004] Specific embodiment one: the water treatment decontamination agent of this embodiment is made up of permanganate, ferrate, silicate polymer, inorganic salt, and described inorganic salt is Al 3+ Salt and / or Fe 3+ Salts, their weight percentages are: 0.1-40% of permanganate, 0.1-40% of ferrate, 0.1-30% of silicate polymer, and 0.1-80% of inorganic salt. The permanganate is potassium permanganate or sodium permanganate; the ferrate is potassium ferrate or sodium ferrate; the silicate polymer can form high polymanganese ferrosilicon, high Polymanganese aluminum silicon, high poly iron silicon, high poly iron aluminum silicon, high poly aluminum silicon and other compounds. In this embodiment, the dosing position of the agent is at the front end of the coagulation process or at the front end of the filtration process, or at the same time at the front end of the coagulation process and at the front end of the filtration process, and the dosing form is in liquid form, or in ...

specific Embodiment approach 2

[0005] Specific implementation mode 2: In this implementation mode, taking the 3 types of surface water bodies as an example, the decontamination agent is formulated to a mass concentration of 0.1-5%, and the controlled dosage is 3-20 mg / L, of which 10-30% permanganate , ferrate 10-40%, silicate polymer 0.1-15%, Fe 3+ Salt 15-60%, adding it to the water body before coagulation, the turbidity removal rate of the filtered effluent will increase by 40%, the removal rate of organic pollutants will increase by 40%, and the dosage of the agent will save 25% compared with the dosage of the conventional agent. %, the amount of haloform precursors and haloform production is greatly reduced.

specific Embodiment approach 3

[0006] Specific implementation mode three: In this implementation mode, taking 4 types of surface water bodies as an example, the concentration of the medicament is 0.1-5%, the controlled dosage is 10-60 mg / L, 5-25% permanganate, ferrate 20-30%, silicate polymer 0.1-15%, Fe 3+ Salt 30-50%. Add the above medicaments to the water body before coagulation, the turbidity removal rate of the filtered effluent is increased by 30-40%, the removal rate of organic pollutants is increased by 30-40%, and the dosage of medicaments is 10-40% less than that of conventional medicaments. 15%, the amount of haloform precursors and haloform generation is greatly reduced.

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Abstract

The composite water pollutant eliminating chemical preparation consists of permanganate, ferrate, silicate polymer and inorganic salt. The present invention has the efficient pollutant eliminating and flocculating effects of composite potassium permanganate-ferrate preparation as well as the adsorption, rolling and sweeping effects of inorganic polymer. The composite water pollutant eliminating chemical preparation has powerful oxidation property, which may be utilized to destruct viruses and bacteria, generating less side sterilizing product. In addition, the composite water pollutant eliminating chemical preparation has excellent raised coagulation and filtering effects for eliminating turbid matter, color, algae, bad smell, organic pollutant, mutagenic matter, etc.

Description

Technical field: [0001] The invention relates to a decontamination agent for water treatment. Background technique: [0002] At present, the organic pollution of surface water in China's seven major river basins is generally becoming more and more serious, and the types of pollutants are increasing. Water pollution poses challenges to existing water purification technologies. The data show that the existing purification technology cannot guarantee the safety of drinking water quality. In the process of coagulation and sedimentation, the colloidal particles in the water are difficult to destabilize, the dosage of coagulant is greatly increased, the organic pollutants are difficult to be removed from the water, and the cost of water treatment is greatly increased. In the filtration process, the increase of organic matter in the water will cause the surface of the filter material in the filter to be polluted by organic matter, the surface properties will change, and some or al...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F1/52C02F1/50
Inventor 许国仁李圭白
Owner HARBIN INST OF TECH