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Water treatment compositions

A technology of composition and mixture, applied in water/sewage treatment, special compound water treatment, adsorbed water/sewage treatment, etc.

Inactive Publication Date: 2003-08-27
THE PROCTER & GAMBLE COMPANY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] After purifying and disinfecting unclean drinking water, another problem that arises from this is how to maintain the cleanliness of the water before drinking, and at the same time make the water have a good taste

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Embodiment 1

[0146] Element

[0147] Add 500 mg of compositions A to K in Example 1 in powder or tablet form to 1 L of water respectively, and stir slightly. Let stand for 5 minutes, then stir for 1 minute, then let stand for another 20 minutes. During this time, water-insoluble flocs were formed in the water. The water insoluble flocs are then removed by pouring the water through a tight cloth filter and the filtered water is collected as clean water. Example 3

Embodiment 3

[0148] Add 500 mg of compositions A, C, D, F, G, I, J and K in powder or tablet form to 1 L of water respectively, and stir slightly. Let stand for 10 minutes, then stir for 1 minute, then let stand for another 20 minutes. During this time, water-insoluble flocs were formed in the water. The water insoluble flocs were then removed by pouring the water through a tight cloth filter, collecting the filtered water, adding 1 mg of calcium hypochlorite to it, stirring slightly, and this was clean water. Example 4

Embodiment 4

[0149] Element

[0150] What is added in the above composition is granular calcium hypochlorite, the median particle size is 1212 μm, less than 25 wt% greater than 1400 μm, less than 0.5 wt% greater than 2000 μm, less than 3% less than 150 μm. The free water content of the composition is 1-4 wt%. Hectorite clay, kaolin and X zeolite were all pre-dried to a free water content of less than 1.5 wt% and a water capacity of greater than 18 wt%. composition of t max at least 8 minutes, t 80 Less than 30 seconds. 6.2 g of compositions L to V were added in powder form to 10 L of water, and the compositions were originally packaged in unit dosage form in polypropylene bags. After adding the composition, stir briefly. Let stand for 5 minutes, then stir for 1 minute, then let stand for another 5 minutes. During this time, water-insoluble flocs are formed in the water. Pass the liquid through a filter medium of cotton cloth or non-woven material to remove the non-water-...

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PUM

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Abstract

Compositions, methods and kits for purifying and clarifying and / or nutrifying contaminated drinking water and which comprise a primary coagulant material and a bridging flocculent material, the levels and ratios of coagulant to flocculent preferably falling within certain ranges. Highly preferred compositions also contain one or more of a cationic coagulant aid, especially chitosan, a microbiocidal disinfectant, a water-soluble alkali, a water-insoluble silicate, and a food additive or nutrient source.

Description

field of invention [0001] The present invention relates to compositions, methods and kits for purifying unclean drinking water to make it potable. The compositions and kits are particularly suitable for personal or household use for the purification and clarification of small quantities of unclean drinking water in a batch process. The compositions and kits are also suitable for individuals or families to supplement nutritional elements while purifying unclean drinking water. Background of the invention [0002] The need for potable water is ubiquitous throughout the world. In developed countries, large-scale state-owned or multinational water treatment companies usually purify water for human consumption. Such water is typically delivered directly to the consumer's residence in potable form. However, in some places, such as remote areas of developing countries, many people do not have a direct water supply to their dwellings, but instead sha...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D21/01C02F1/28C02F1/50C02F1/52C02F1/56C02F1/68C02F1/76C02F9/00
CPCC02F1/68C02F1/281C02F1/76C02F1/688C02F1/5236C02F2305/14C02F1/50C02F2303/04C02F1/56
Inventor P·F·苏特C·尤尔
Owner THE PROCTER & GAMBLE COMPANY
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