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Pollution removing medicament for drinking water

A technology for drinking water and pharmaceuticals, applied in the fields of flocculation/sedimentation water/sewage treatment, sterilization/microdynamic water/sewage treatment, etc., which can solve the problems of complicated operation, harmful to human body and high cost.

Inactive Publication Date: 2005-03-23
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The oxidants currently used in the pre-oxidation treatment process mainly include Cl 2 , O 3 , ClO 2 , KMnO 4 、H 2 o 2 etc. The advantages of chemical pre-oxidation treatment are small footprint, short reaction time, generally less affected by temperature, and their disadvantages are: some oxidants (O 3 , ClO 2 ) can not be preserved, it needs to be prepared on site, and the operation is complicated; the cost is expensive (O 3 ); The current research results suggest that some oxidants (Cl 2 , O 3 etc.) produce harmful by-products while reacting with organic matter in water

Method used

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Examples

Experimental program
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Effect test

specific Embodiment approach 1

[0004] Specific embodiment 1: This embodiment is composed of the following components in weight percentage: 0.1-90% of ferrate, 0-70% of permanganate, and 0.1-30% of adjuvant. The adjuvant is iron sulfate, calcium oxide, calcium hydroxide, sodium hydroxide, potassium hydroxide, phosphate, peroxide, hypochlorite, chlorate, special clay, aluminum sulfate and polyaluminum sulfate One or any mixture of several. The special clay is one or a mixture of activated montmorillonite, Pengrun clay, attapulgite, zeolite and diatomite. The dosing position is at the front end of the coagulation process or at the front end of the filtration process. The dosing form is dosing in liquid form or dosing in solid form. The dosage of the medicine is 0.1-100 mg / L effective medicine dosage. The ferrate is potassium ferrate or sodium ferrate. The permanganate is potassium permanganate or sodium permanganate.

specific Embodiment approach 2

[0005] Specific embodiment 2: This embodiment is composed of the following components by weight percentage: 70-90% of ferrate and 10-30% of adjuvants.

specific Embodiment approach 3

[0006] Specific embodiment three: This embodiment is composed of the following components by weight percentage: 20-45% of ferrate, 40-60% of permanganate, and 10-30% of adjuvant.

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PUM

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Abstract

A chemical for removing pollutants from drinking water contains perferrite, permanganate and assistant. It features strong catalytic oxidizing action for destroying oraganic substances.

Description

Technical field: [0001] The invention relates to a medicament for decontamination of drinking water, in particular to a composite decontamination medicament for drinking water. Background technique: [0002] In the past two decades, drinking water decontamination technology has become one of the hot spots in water treatment research. At present, large-scale water treatment processes generally use adsorption methods, biological pretreatments, and chemical pretreatments based on existing conventional treatment processes Oxidation treatment and other methods remove organic pollutants in water in order to obtain safe and qualified drinking water. Among them, chemical pre-oxidation is one of the important processes, which has the advantages of economy and high efficiency. The oxidant currently used in the pre-oxidation treatment process mainly includes Cl 2 , O 3 , ClO 2 , KMnO 4 , H 2 O 2 Etc., the advantages of chemical pre-oxidation treatment occupy less space, the reaction time is...

Claims

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Application Information

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IPC IPC(8): C02F1/50C02F1/52
Inventor 许国仁李圭白
Owner HARBIN INST OF TECH
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