A process and apparatus for purification of water

A process and equipment technology, applied in the field of water purification process, can solve the problems of inability to reduce arsenic and microbial pollutants at the same time, expensive process, continuous water source, etc.

Active Publication Date: 2017-02-22
TATA CONSULTANCY SERVICES LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0013] Existing technology processes have proven to be expensive and require a continuous water supply, making them unsuitable for widespread use in most developing countries
In addition, these processes cannot simultaneously reduce both arsenic and microbial contaminants in the water
Also, these processes require electricity and skilled personnel to work properly

Method used

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  • A process and apparatus for purification of water
  • A process and apparatus for purification of water
  • A process and apparatus for purification of water

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0088] Embodiment 1: According to the water purification process of the present invention, and analysis of arsenic removal effect

[0089] A bed of arsenic removal media was prepared in an 880 mm size cartridge using 378 grams of arsenic removal media. Add 20% wt / vol ferric chloride solution and 14% wt / vol sodium hydroxide solution into water simultaneously, keep stirring with a stirrer, and maintain the pH of the solution at 6.8. Wait for the suspension to settle for 8 hours and remove the supernatant by decantation followed by vacuum filtration. The filter residue was dried in an oven at 65°C for 24 hours, and the dried filter residue was granulated to obtain particles that could pass through a sieve with a size of 850 microns and remain on a sieve with a size of 425 microns. To test for arsenic removal, the cartridges were connected to a point-of-use (POU) system source tank for holding arsenic-contaminated water and a collection tank for collecting cartridge-purified water....

Embodiment 2

[0090] Embodiment 2: according to water purification process of the present invention, and microbial activity elimination effect analysis

[0091] In order to test the bacteria and virus activity elimination effect of the water purification process, a cartridge similar to the cartridge introduced in Example 1 was prepared, and the chlorine release system prepared by two trichloroisocyanuric acid tablets was placed in a shell with inlet and outlet holes. Between the diffuser membrane and the spring in the body. Chlorine-releasing tablets were prepared using 1.5 g of trichloroisocyanuric acid and a diffusion film was prepared using felt cloth. Water from the bed of arsenic removal media enters the disinfectant delivery system, where it contacts the diffusion membrane and forms an outlet. A cartridge consisting of an arsenic removal media bed and a chlorine release system was connected to the POU system source tank and tested with groundwater for bacteria and viruses. To determ...

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Abstract

The present disclosure relates to a process for the purification of water. The process includes leading water laden with microorganisms and arsenic through an arsenic adsorption media followed by treating the resultant arsenic deficient water with a disinfectant releasing system to obtain water deficient of arsenic and viable microorganisms. The present disclosure also provides an apparatus for the purification of water using the afore-stated process.

Description

[0001] The present invention relates to water purification. More specifically, the present invention relates to a water purification process. Background technique [0002] Water from various sources is often contaminated with suspended solids, microorganisms and toxic chemicals. Drinking water contaminated with microbial contaminants such as bacteria, viruses and cysts is one of the important causes of waterborne diseases such as cholera, typhoid and dysentery. Likewise, drinking water contaminated with toxic chemicals such as arsenic can lead to various health hazards such as hyperkeratosis of the hands and palms, blackfoot and skin, lung, liver, bladder and kidney cancers. Importantly, arsenic has been recognized as one of the major water pollutants by countries around the world in Bangladesh, India, the United States, South America, China, Taiwan and Thailand. About 137 million people worldwide are estimated to be exposed to arsenic and its toxicity. People in Indian sta...

Claims

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Application Information

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IPC IPC(8): B01J20/06C01G49/02C02F1/28
CPCB01J20/06C01G49/02C02F1/001C02F1/688C02F1/76C02F9/00C02F2101/103C02F2209/40C02F2209/445C02F2303/04B01J20/3021B01J20/3078B01J20/3085B01J20/28004B01J20/28057B01J2220/4806C02F1/281B01D15/18B01J20/28059B01J20/28061B01J2220/56C02F2307/10C02F2307/04C02F1/003C02F9/20C02F2101/20C02F2209/44
Inventor S·B·考斯利C·P·马尔霍特拉D·阿赫默德
Owner TATA CONSULTANCY SERVICES LTD
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