Method and system for deep purification of drinking water by adopting oxidation-resistant film
A deep purification and oxidation-resistant technology, applied in chemical instruments and methods, oxidized water/sewage treatment, water/sewage multi-stage treatment, etc., can solve pollution and other problems, achieve the effects of reducing pollution, improving efficiency, and facilitating maintenance
Active Publication Date: 2011-04-06
SHENZHEN GRADUATE SCHOOL TSINGHUA UNIV
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[0006] In order to overcome the above-mentioned deficiencies in the existing drinking water purification technology, the present invention provides a method and system for deep purification of drinking water using an oxidation-resistant film. The problem of being polluted by different degrees of organic matter and ammonia nitrogen; at the same time, it can be transformed in combination with the existing process and conditions of the water plant without adding major structures
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[0022] The present invention will be further explained below in conjunction with the drawings and specific tests.
[0023] figure 1 The shown system mainly includes: an ozone generator 1, a contact tank 2, a microporous aerator 3 and an oxidation-resistant membrane filter assembly 4 arranged in the contact tank 2, and a granular activated carbon filter bed 5, etc.
[0024] The ozone generator 1 includes an air source 11, an air inlet pipe 12 and an air outlet pipe 13. The air source 11 adopts dust-removed and dried air or pure oxygen. The pressure of the air source is 0.04-0.1MPa. After high-voltage discharge, ozone-containing gas is generated. Adjust the gas volume and the discharge power of the ozone generator, and the ozone concentration in the outgas can reach 4%-16%. The ozone generator can directly use the existing stereotyped products on the market, but the choice of gas source depends on the level of ammonia nitrogen concentration; when the ammonia nitrogen concentration i...
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Abstract
The invention relates to a method for deep purification of drinking water by adopting an oxidation-resistant film, which comprises the following steps: conveying raw water and leading the raw water to enter into a contact tank, inputting gas containing ozone via a microporous aerator for carrying out ozone aeration, and carrying out oxidation and degradation on organic matters in water flow; further leading the water flow to enter into an oxidation-resistant film filtering component above the microporous aerator for filtration; and leading the water flow after the filtration by the oxidation-resistant film to enter into a granular activated carbon filtering bed layer for adsorption and microbial purification, effectively removing the residual organic matters and ammonia nitrogen and obtaining the drinking water after deep purification. The method can realize the deep purification of a water source with micro-pollution through an ozone, oxidation-resistant film and granular activated carbon combined system, break through the limitations of the commonly used organic film treatment, not only remove the turbidity in the raw water, but also effectively remove the high-concentration organic matters and the ammonia nitrogen in the raw water; furthermore, the method can carry out transformation on the basis of the conventional process of the existing water plant, does not need to carry out major adjustment on main structures of the water plant, and is convenient for popularization.
Description
Technical field [0001] The present invention relates to advanced drinking water treatment technology, in particular to a method and system for deep purification of drinking water by using an oxidation-resistant film. The present invention is particularly suitable for water sources that are polluted by organic matter and ammonia nitrogen, but conventional drinking water purification processes cannot make ammonia and organic matter effective. Remove the situation. Background technique [0002] In modern society, the drinking water needed by humans in daily life mainly comes from surface water sources, and surface water sources generally have a certain degree of organic matter and ammonia nitrogen pollution, usually called micro-pollution. Human production and consumption activities are the main reasons leading to the increase of water source organic matter and ammonia nitrogen concentration. Conventional drinking water purification treatment processes include coagulation, precipit...
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IPC IPC(8): C02F9/14C02F1/78C02F3/34
Inventor 张锡辉郭建宁
Owner SHENZHEN GRADUATE SCHOOL TSINGHUA UNIV
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