CN101279791B - Advanced treatment method for drinking water - Google Patents
Advanced treatment method for drinking water Download PDFInfo
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- CN101279791B CN101279791B CN2008100163588A CN200810016358A CN101279791B CN 101279791 B CN101279791 B CN 101279791B CN 2008100163588 A CN2008100163588 A CN 2008100163588A CN 200810016358 A CN200810016358 A CN 200810016358A CN 101279791 B CN101279791 B CN 101279791B
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Abstract
The invention discloses a drinking water advanced treatment method, which comprises steps of putting ozone, active carbon and an inorganic adsorptive filter material in water for water treatment. Theinvention mixes the active carbon with a certain inorganic adsorptive filter material to form a composite adsorptive filter material with advantages of high mechanical strength, good agitation, low density, high porosity, strong pollutant absorption and acid and alkaline resistance, and has good adsorption properties for polar-nonpolar harmful substances in water. The composite filter material isa multi-functional carrier with functions of adsorption, accelerant and chemical reaction activity. The ozone/composite adsorption combined process integrates ozone oxidation and filter material adsorption technique into one body, thereby effectively overcoming the limitations by independently using the three materials and giving full play to the advantages and synergistic action of the three.
Description
(1) technical field
The present invention relates to a kind of water treatment method, particularly a kind of advanced treatment method for drinking water.
(2) background technology
In recent years, in view of the ubiquity and the seriousness of pollution of waterhead, drinking water deep Processing Technology and application present flourish trend.Enhancing along with resident's environmental consciousness, standard of living improve constantly improvement day by day with healthiness condition, it will be more and more high also that water quality standard for drinking water requires, conventional flocculation, precipitation, filtration, javellization technology have been difficult to satisfy the requirement that water quality improves constantly, the application potential of advanced treatment technology in giving water treatment is huge, and development prospect is very wide.The drinking water deep treatment technology of China still has big gap with world's advanced level.Because the whole bag of tricks that drinking water deep is handled all has its various excellent, shortcoming separately, China answers active research to develop various drinking water deep treatment technologies, reduce investment and running cost, according to different water sources and effluent quality requirement, the choose reasonable advanced treatment process, better advance the advanced treatment technology in China to the application on the engineering of water treatment, therefore, research and development water treatment new technology and technology ensure that drinking-water quality safety is very necessary.
(3) summary of the invention
The technical problem to be solved in the present invention is: a kind of advanced treatment method for drinking water is provided, makes it can effectively remove objectionable impurities in the water.
In order to solve the problems of the technologies described above, the present invention includes step has: Xiang Shuizhong throws in ozone, gac and inorganic absorbent filter medium and carries out water conditioning.
In order better to remove larger molecular organics, throw in ozone earlier, make ozone that the macromolecular oxidation operation in the water is resolved into small organic molecule, drop into gac and inorganic absorbent filter medium again and inhale small organic molecule.
In order to make it have adsorption effect preferably, described inorganic absorbent filter medium is a kind of in modified zeolite, activated alumina, the porous soft haydite.
In order to have better adsorption effect, described porous soft haydite is made up of following components in weight percentage: silicon-dioxide 62.0%-71.0%, aluminum oxide 20.0%-26.0%, iron protoxide 0.40%-0.90%, potassium oxide 0.6%-1.50%, calcium oxide 0.3%-0.5%, magnesium oxide 2.90%-3.4%, sodium oxide 0.15%-0.35%, titanium dioxide 0.20%-0.35% and an amount of impurity.
The invention has the beneficial effects as follows:
The present invention mixes gac and certain inorganic absorbent filter medium, form compound absorbent filter medium, water Semi-polarity/nonpolar objectionable impurities is all had absorption property preferably with characteristics such as physical strength height, stirring property are good, density is low, porosity is high, the soil pick-up ability is strong, resistance to acids and bases is good.Composite filtering material is the multifunctional carrier that has absorption, catalyst and chemical reactivity concurrently.Aerobic microbiological group can be dispersed in filter material surface, also can film forming cover whole filtering material particle surface, forms biofilter material.Microorganism is negative thereon, the water technology that physics, chemisorption, the oxidation degradation technology of forming filtrate can be integrated, the associated treatment effect of performance materialization and biochemical treatment.And with the ozone coupling, form ozone/compound adsorption combined technology, take to adsorb after the first ozone oxidation, in absorption, continue oxidation again, make the adsorption and oxidation effect performance of filtrate better.Composite filtering material can be removed small organic molecule more effectively, is difficult to remove larger molecular organics, and general larger molecular organics is more in the water, so the surface-area of composite filtering material will can not get utilizing fully, certainly will quicken saturatedly, shortens the cycle of operation.If before composite filtering material, add ozone, can make on the one hand that macromole is converted into small molecules in the water, change its molecular structure form, provide organism to enter the possibility of filtrate smaller aperture, quickened in the filtrate macropore simultaneously and the organic oxygenolysis on surface, alleviated the burden of filtrate, made it fully adsorb not oxidized organism; Ozone can be decomposed into oxygen automatically in water on the other hand, therefore contain competent oxygen in the ozonize water outlet, make filter bed be in the oxygen enrichment state, strengthened the activity of composite filtering material surface aerobic microbiological, and formation microbial film, degraded is adsorbed on organism in the filtrate hole, makes filtrate obtain to a certain degree regeneration, improves its life cycle.Ozone/compound adsorption combined technology is integrated ozone oxidation, filtrate adsorption technology, overcomes the limitation that the three adopts separately effectively, gives full play to three's advantage and synergy.
(4) embodiment
Specific embodiment 1
Xiang Shuizhong throws in ozone, gac and modified zeolite and carries out water conditioning.Modified zeolite specific surface area height has positive charge at the condition of neutral pH lower surface, and high adsorption capacity can effectively be removed fluorine, arsenic, selenium in the water, organism, the heavy metal of complex state, hazardous and noxious substances such as algae and microorganism.The Ca that exists in the water
2+, Mg
2+, Cl
-, SO
4 2-, HCO
3 -Plasma, even it is under dense situation, also little to the influence of modified zeolite loading capacity.Therefore the modified zeolite and the gac of high stability and physical strength are formed composite filtering material, and with the ozone logotype, can give full play to ozone oxidation, filtrate physical and chemical adsorption and biological decomposition three's advantage and synergy, effluent index all is better than conventional processing greatly, can guarantee safety of drinking water effectively.
Specific embodiment 2
Earlier in water, throw in ozone, make the larger molecular organics in the sufficient oxygenolysis water of ozone, and have part ozone to resolve into oxygen automatically, improve the oxygen level in the water, in water, drop into gac, activated alumina again.As sorbent material, activated alumina has that surface-area is big, absorption property good, the characteristics of surface acidity, good thermal stability.Activated alumina mainly is to utilize fluorion in its planar water in water treatment, also can remove phosphoric acid salt in the water, heavy metal ion and organism.Activated alumina and activated carbon combined use are carried out advanced treatment to tap water, and with the ozone logotype, can learn from other's strong points to offset one's weaknesses mutually, remove the organic pollutant in the tap water more comprehensively more up hill and dale.
Specific embodiment 3
Water quality is thrown in ozone, gac, porous soft haydite again and is carried out water conditioning after the flocculation of routine, precipitation, filtration, javellization technology in water.Gac and porous soft haydite all have flourishing hole, and organism is all had very strong adsorptive power.Wherein, the porous soft haydite has metal ion, so polar organic matter, metal ion, ammonia nitrogen, nitrite etc. are had stronger adsorptive power, and the nonpolar or low-pole material in the easy planar water of gac embodies the favourable absorption ability to nonpolar organic matter.Ozone and active carbon-porous soft haydite combination process can overcome the limitation that the three uses separately effectively, give full play to three's advantage and synergy, improve speed of response, strengthen colourity, smell the treatment effect of flavor, iron, manganese, organic matter, ammonia nitrogen, nitrite nitrogen.
This specific embodiment porous soft haydite is made up of following components in weight percentage: silicon-dioxide 62.0%-71.0%, aluminum oxide 20.0%-26.0%, iron protoxide 0.40%-0.90%, potassium oxide 0.6%-1.50%, calcium oxide 0.3%-0.5%, magnesium oxide 2.90%-3.4%, sodium oxide 0.15%-0.35%, titanium dioxide 0.20%-0.35% and an amount of impurity.
The porous soft haydite of this specific embodiment is preferably selected the haydite of being made up of following weight percent component for use: silicon-dioxide 67.5%, aluminum oxide 22.5%, iron protoxide 0.70%, potassium oxide 0.85%, calcium oxide 0.35%, magnesium oxide 3.10%, sodium oxide 0.30%, titanium dioxide 0.30%, surplus are impurity.
Claims (1)
1. the invention discloses a kind of advanced treatment method for drinking water, the present invention includes step has: Xiang Shuizhong throws in ozone, gac and inorganic absorbent filter medium and carries out water conditioning.The present invention mixes the inorganic absorbent filter medium of gac and certain, form compound absorbent filter medium, water Semi-polarity/nonpolar objectionable impurities is all had absorption property preferably with characteristics such as physical strength height, stirring property are good, density is low, porosity is high, the soil pick-up ability is strong, resistance to acids and bases is good.Composite filtering material is the multifunctional carrier that has absorption, catalyst and chemical reactivity concurrently.Ozone/compound adsorption combined technology is integrated ozone oxidation, filtrate adsorption technology, overcomes the limitation that the three adopts separately effectively, gives full play to three's advantage and synergy.
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|---|---|---|---|
| CN2008100163588A CN101279791B (en) | 2008-05-23 | 2008-05-23 | Advanced treatment method for drinking water |
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| CN2008100163588A CN101279791B (en) | 2008-05-23 | 2008-05-23 | Advanced treatment method for drinking water |
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| CN101279791A CN101279791A (en) | 2008-10-08 |
| CN101279791B true CN101279791B (en) | 2010-04-07 |
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Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SG178383A1 (en) * | 2009-08-13 | 2012-03-29 | Water Harvesting Technologies Pty Ltd | Water filtration sytem with activated carbon and zeolite |
| CN101920191B (en) * | 2010-06-12 | 2012-05-09 | 华中农业大学 | Application of activated carbon modified material and application in removing arsenic from water |
| CN102276111A (en) * | 2011-06-08 | 2011-12-14 | 淮安自来水有限公司 | Optimally combined treating method for micro-polluted water sources |
| CN106241902A (en) * | 2016-08-11 | 2016-12-21 | 李宝全 | A kind of water purification agent |
| CN106145219A (en) * | 2016-08-11 | 2016-11-23 | 李宝全 | A kind of high performance-price ratio water purification agent |
| CN106241901A (en) * | 2016-08-11 | 2016-12-21 | 李宝全 | A kind of inorganic water purification agent |
| CN106186102A (en) * | 2016-08-11 | 2016-12-07 | 李宝全 | A kind of water purification agent based on mineral |
| CN106277160A (en) * | 2016-08-11 | 2017-01-04 | 李宝全 | Without muriatic water purification agent |
| CN110152691A (en) * | 2018-03-30 | 2019-08-23 | 铜仁学院 | A kind of preparation method of ozone oxidation catalyst |
| CN110117058A (en) * | 2019-04-19 | 2019-08-13 | 清华大学 | A kind of advanced treatment apparatus and method of Drinking Water |
| CN113480038A (en) * | 2021-07-15 | 2021-10-08 | 鸿灌环境技术有限公司 | Portable effluent treatment plant |
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| CN1035275A (en) * | 1988-02-27 | 1989-09-06 | 清华大学 | Remove the water treatment method of low-concentration organic |
| CN1371873A (en) * | 2002-04-04 | 2002-10-02 | 同济大学 | Micropollution water source treatment method |
| JP3377733B2 (en) * | 1997-09-30 | 2003-02-17 | 三菱重工業株式会社 | Method and apparatus for treating contaminated water containing harmful substances |
| US20070284310A1 (en) * | 2006-06-12 | 2007-12-13 | Van Leeuwen Johannes | Method and system for purifying ethanol |
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2008
- 2008-05-23 CN CN2008100163588A patent/CN101279791B/en not_active Expired - Fee Related
Patent Citations (4)
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|---|---|---|---|---|
| CN1035275A (en) * | 1988-02-27 | 1989-09-06 | 清华大学 | Remove the water treatment method of low-concentration organic |
| JP3377733B2 (en) * | 1997-09-30 | 2003-02-17 | 三菱重工業株式会社 | Method and apparatus for treating contaminated water containing harmful substances |
| CN1371873A (en) * | 2002-04-04 | 2002-10-02 | 同济大学 | Micropollution water source treatment method |
| US20070284310A1 (en) * | 2006-06-12 | 2007-12-13 | Van Leeuwen Johannes | Method and system for purifying ethanol |
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| Title |
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| 胡思海,吴耀国,谭英,冯文璐.天然矿物材料沸石在水处理中应用研究的新进展.材料导报21 9.2007,21(9),80-82. |
| 胡思海,吴耀国,谭英,冯文璐.天然矿物材料沸石在水处理中应用研究的新进展.材料导报21 9.2007,21(9),80-82. * |
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