CN105585216A - Advanced water treatment method for micro-polluted water source - Google Patents
Advanced water treatment method for micro-polluted water source Download PDFInfo
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- CN105585216A CN105585216A CN201511030055.8A CN201511030055A CN105585216A CN 105585216 A CN105585216 A CN 105585216A CN 201511030055 A CN201511030055 A CN 201511030055A CN 105585216 A CN105585216 A CN 105585216A
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- water
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- pond
- effluent
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/76—Treatment of water, waste water, or sewage by oxidation with halogens or compounds of halogens
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/78—Treatment of water, waste water, or sewage by oxidation with ozone
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/02—Aerobic processes
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- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Treatment Of Water By Oxidation Or Reduction (AREA)
Abstract
The invention discloses an advanced water treatment method for a micro-polluted water source. Effluent from a sedimentation tank enters an ozone pre-oxidation tank, macromolecular organic matters in water are decomposed into micromolecular organic matters under strong oxidation of ozone, effluent from the ozone pre-oxidation tank is lifted to an efficient biofilter, the filtration rate of the efficient biofilter is 6-10 m/h, and filtering media comprise briquette broken carbon and ceramsite filter materials; effluent from the efficient biofilter flows to a fiber filtering media filtration tank under gravity, suspended particles are intercepted by fiber filtering media and finally enters a sludge system along with backwashing water and a precipitation process, and effluent from the fiber filtering media filtration tank enters a clear water tank, is disinfected by chlorine and pumped into an urban water supply network through a booster pump. The purified effluent enters the clear water tank and is disinfected by chlorine, so that the treated effluent meets the Standards for drinking water quality (GB5749-2006), the problems of blockage of a filtration tank, low organic matter removal rate and high operation cost of an ozone-biological activated carbon advanced treatment technology are solved, and the advanced water treatment method is suitable for advanced treatment of the micro-polluted water source, especially a micro-polluted water source in southern hot and humid areas.
Description
Technical field
The present invention relates to one to water technology, relate in particular to a kind of micro polluted source method for processing water supply depth.
Background technology
Along with industrial expansion, the intensity of pollution of waterhead and range present the effect of stack, have further aggravated water resource shortLack the contradiction with water requirements. In body eutrophication and water, micro quantity organic pollutant problem also becomes more outstanding, routineWater-purifying process, flocculation-precipitation-sand filtration-disinfection treatment method has been difficult to ensure water quality.
At present, studying more advanced treating technology has photochemical catalytic oxidation, membrane technology, biological activated carbon, ozone-biology to liveProperty charcoal etc., wherein ozone-biological active carbon be again the current most widely used degree of depth to water technology, be by ozone chemistryThe treatment process that oxidation, biological activated carbon absorption and microbial degradation combine together. Organic pollutants passes through ozonePre-oxidation, large molecular organic pollutants is decomposed into small organic molecule, small organic molecule in the absorption of follow-up active carbon andUnder the synergy of microorganism, degrade, finally drain with mud by backwash, depositing technology. But in actual applications,There are some problems in ozone-biological active carbon treatment process, particularly, in some damp-heat areas, south, water temperature, temperature areHeight, microbial reproduction speed is fast, and oxygen demand is under-supply, and organic matter degradation is incomplete, and filter tank is stopped up, and backwash is frequentlyNumerous, the filter efficiency of biological activated carbon filter is reduced, active carbon wear rate raises, and operating cost rises, water outlet waterMatter stability is difficult to ensure.
Summary of the invention
The object of this invention is to provide that a kind of filter efficiency is high, operating cost is low, the micro polluted source of stable effluent quality toMethod for deeply treating water.
The object of the invention is to be achieved through the following technical solutions:
Micro polluted source method for processing water supply depth of the present invention, comprises step:
A, sedimentation basin water outlet enter into ozone pre-oxidation pond, the interior pure titanium metal aeration head of laying at the bottom of pond, Chi Tifen front and back twoSection, pond that front and back are two sections holds than being 3:2, and in pond, to add concentration be 1～3mg/L to ozone, and the time of staying of water in pond is10～15min, in water, larger molecular organics is decomposed into small organic molecule by the strong oxidation of ozone;
The water outlet in B, described ozone pre-oxidation pond is promoted to high-efficiency bio-filter pool, and the filtering velocity of described high-efficiency bio-filter pool is6～10m/h, filtrate comprises two kinds of filtrates, and one is the broken charcoal of briquetting, and particle size range 1.2～1.3mm, is positioned at upper strata, layerHigh 1.8m, another kind is ceramic grain filter, and particle diameter 3～6mm, floor height 0.5m, be positioned at bottom, and the thickness of middle part supporting layer is0.3m, lays boring aeration pipe in supporting layer, compressed air provides growth of microorganism required oxygen source by aeration tube;
The water outlet gravity current of C, described high-efficiency bio-filter pool is to fiber filtering filter tank, and the filtering velocity in described fiber filtering filter tank is12～20m/h, filtrate are loaded height 0.8m, and supporting layer adopts thick quartz sand, particle diameter 4～8mm, floor height 80mm, high-performance bioSuspended particulate in the water outlet of filter tank is held back by fiber filtering, finally enters into sludge system with backwashing water, depositing technology,The water outlet of fiber filtering filter tank enters clear water reserviors and send into public supply mains by force (forcing) pump after chlorination.
As seen from the above technical solution provided by the invention, the micro polluted source that the embodiment of the present invention provides is to water depthProcessing method, flocculation sedimentation tank water outlet is from flowing into ozone pre-oxidation pond, and after ozone oxidation, in water, larger molecular organics dividesSeparate as small organic molecule, improve biodegradability of organic matter and the colourity that reduces water in water, water outlet is promoted to efficient life through pumpWater distributing area, thing filter tank bottom, through absorption, the biodegradable acting in conjunction of combination filtrate, in water micro quantity organic pollutant andAmmonia nitrogen is removed, and water outlet gravity flows into fiber filtering filter tank, further reduces graininess in water suspend by interception functionThing, the water outlet after purification enters clear water reserviors after chlorination, reaches " standards for drinking water quality " (GB5749-2006)。
Brief description of the drawings
The schematic flow sheet of the micro polluted source method for processing water supply depth that Fig. 1 provides for the embodiment of the present invention.
Detailed description of the invention
To be described in further detail the embodiment of the present invention below.
Micro polluted source method for processing water supply depth of the present invention, its preferably detailed description of the invention be:
Comprise step:
A, sedimentation basin water outlet enter into ozone pre-oxidation pond, the interior pure titanium metal aeration head of laying at the bottom of pond, Chi Tifen front and back twoSection, pond that front and back are two sections holds than being 3:2, and in pond, to add concentration be 1～3mg/L to ozone, and the time of staying of water in pond is10～15min, in water, larger molecular organics is decomposed into small organic molecule by the strong oxidation of ozone;
The water outlet in B, described ozone pre-oxidation pond is promoted to high-efficiency bio-filter pool, and the filtering velocity of described high-efficiency bio-filter pool is6～10m/h, filtrate comprises two kinds of filtrates, and one is the broken charcoal of briquetting, and particle size range 1.2～1.3mm, is positioned at upper strata, layerHigh 1.8m, another kind is ceramic grain filter, and particle diameter 3～6mm, floor height 0.5m, be positioned at bottom, and the thickness of middle part supporting layer is0.3m, lays boring aeration pipe in supporting layer, compressed air provides growth of microorganism required oxygen source by aeration tube;
The water outlet gravity current of C, described high-efficiency bio-filter pool is to fiber filtering filter tank, and the filtering velocity in described fiber filtering filter tank is12～20m/h, filtrate are loaded height 0.8m, and supporting layer adopts thick quartz sand, particle diameter 4～8mm, floor height 80mm, high-performance bioSuspended particulate in the water outlet of filter tank is held back by fiber filtering, finally enters into sludge system with backwashing water, depositing technology,The water outlet of fiber filtering filter tank enters clear water reserviors and send into public supply mains by force (forcing) pump after chlorination.
The backwashing manner in described fiber filtering filter tank adopts air-water backwashing, and flush sequence is followed successively by air purge---and air water is combined punchingWash---washing, air purge time 3～5min, air purge intensity 20～22L/s.m2; Washing time 3～5min, washing intensity6L/s.m2, air water is washing time 8～10min simultaneously, and gas, water backwash rate remain unchanged, omnidistance rinsing, rinsing intensity1.4～2.8L/s.m2。
The method for processing water supply depth that is applicable to micro polluted source of the present invention, flocculation sedimentation tank water outlet is from flowing into the pre-oxygen of ozoneChange pond, after ozone oxidation, in water, larger molecular organics is decomposed into small organic molecule, and improving organic matter in water can be biochemicalProperty and reduce the colourity of water, water outlet is promoted to water distributing area, high-efficiency bio-filter pool bottom through pump, through absorption, the life of combination filtrateThe acting in conjunction of thing degraded, in water, micro quantity organic pollutant and ammonia nitrogen are removed, and water outlet gravity flows into fiber filtering filterPond, further reduces graininess suspension in water by interception function, and the water outlet after purification enters clear water reserviors through chlorinationAfter, reach " standards for drinking water quality " (GB5749-2006), solve ozone-biological active carbon advanced treatingIn technology, filter tank is stopped up, and organic removal rate is low, and the problem that operating cost is high, is applicable to micro polluted source, especially southThe advanced treating of side's damp-heat area micro polluted source.
The present invention compared with prior art, has the following advantages: solve damp and hot ground, activated carbon filter south by combination filtrateThe easy blockage problem in district, has reduced backwash frequency, has reduced active carbon wear rate, has saved water-supply plant operation maintenanceThis; By using with the fiber filtering combination of high filtering velocity, both saved land used, also to meeting, " Drinking Water is defended simultaneouslyRaw standard " (GB5749-2006) provide sufficient guarantee.
Specific embodiment:
As shown in Figure 1, its step is as follows:
(1) ozone pre-oxidation pond water inlet autoflocculation sedimentation basin water outlet, the interior pure titanium metal aeration head of laying at the bottom of pond, before Chi TifenLatter 2 sections, 2 sections of ponds hold compares 3:2; Ozone adds concentration 1～3mg/L, the time of staying 10～15min; In water, large molecule is organicThing is decomposed into small organic molecule by the strong oxidation of ozone.
(2) water outlet of ozone pre-oxidation pond is promoted to high-efficiency bio-filter pool. High-efficiency bio-filter pool filtering velocity 6～10m/h, filtrate is by 2Plant filtrate composition, one is the broken charcoal of briquetting, and particle size range 1.2～1.3mm, is positioned at upper strata, floor height 1.8m; One is potteryGrain filtrate, particle diameter 3～6mm, floor height 0.5m, is positioned at bottom. Supporting layer thickness 0.3m, lays boring aeration in supporting layerPipe, compressed air provides growth of microorganism required oxygen source by aeration tube.
Filter cell rinse adopts combined water and air backwash, air blasting intensity 10～15L/s.m2, water rushes intensity 4～6L/s.m2, gas punchingTime 3min, water rushes time 3～5min, and air water is washing time 4min simultaneously. Aeration gas-water ratio 0.2～0.5:1;
Pre-ozone oxidation pond water outlet enters high-efficiency bio-filter pool water distributing area by pump at the bottom of pond, after filter uniform water distribution, entersFiltrate district, organic pollutants and ammonia nitrogen are degraded, remove in the absorption of active carbon and the acting in conjunction of biological bacteria, withTime bottom aerating system provides microbial degradation organic matter needed oxygen. Through filter tank, water outlet after treatment is from top, filter tankEnter into outlet canal, then enter into follow-up fiber filtering filter tank by gravity current.
(3) high-efficiency bio-filter pool water outlet gravity current is to fiber filtering filter tank. Fiber filtering filter tank filtering velocity 12～20m/h, filtrateLoad height 0.8m, supporting layer adopts thick quartz sand, particle diameter 4～8mm, floor height 80mm. Backwashing manner adopts air water back washingWash, flush sequence is followed successively by air purge---air water is combined flushing---washes, air purge time 4min, air purge intensity 20L/s.m2；Washing time 3～5min, washing intensity 6L/s.m2, air water is washing time 8～10min simultaneously, and gas, water backwash rate keep notBecome omnidistance rinsing, rinsing intensity 2L/s.m2。
Suspended particulate in high-efficiency bio-filter pool water outlet is held back by fiber filtering, finally enters with backwashing water, depositing technologyTo sludge system. The water outlet of fiber filtering filter tank enters clear water reserviors and send into public supply mains by force (forcing) pump after chlorination.
The above, be only preferably detailed description of the invention of the present invention, but protection scope of the present invention is not limited to this,Anyly be familiar with in technical scope that those skilled in the art disclose in the present invention the variation that can expect easily or replaceChange, within all should being encompassed in protection scope of the present invention. What therefore, protection scope of the present invention should be with claimsProtection domain is as the criterion.
Claims (2)
1. a micro polluted source method for processing water supply depth, is characterized in that, comprises step:
A, sedimentation basin water outlet enter into ozone pre-oxidation pond, the interior pure titanium metal aeration head of laying at the bottom of pond, Chi Tifen front and back twoSection, pond that front and back are two sections holds than being 3:2, and in pond, to add concentration be 1～3mg/L to ozone, and the time of staying of water in pond is10～15min, in water, larger molecular organics is decomposed into small organic molecule by the strong oxidation of ozone;
The water outlet in B, described ozone pre-oxidation pond is promoted to high-efficiency bio-filter pool, and the filtering velocity of described high-efficiency bio-filter pool is6～10m/h, filtrate comprises two kinds of filtrates, and one is the broken charcoal of briquetting, and particle size range 1.2～1.3mm, is positioned at upper strata, layerHigh 1.8m, another kind is ceramic grain filter, and particle diameter 3～6mm, floor height 0.5m, be positioned at bottom, and the thickness of middle part supporting layer is0.3m, lays boring aeration pipe in supporting layer, compressed air provides growth of microorganism required oxygen source by aeration tube;
The water outlet gravity current of C, described high-efficiency bio-filter pool is to fiber filtering filter tank, and the filtering velocity in described fiber filtering filter tank is12～20m/h, filtrate are loaded height 0.8m, and supporting layer adopts thick quartz sand, particle diameter 4～8mm, floor height 80mm, high-performance bioSuspended particulate in the water outlet of filter tank is held back by fiber filtering, finally enters into sludge system with backwashing water, depositing technology,The water outlet of fiber filtering filter tank enters clear water reserviors and send into public supply mains by force (forcing) pump after chlorination.
2. micro polluted source method for processing water supply depth according to claim 1, is characterized in that, described fiber filterThe backwashing manner in material filter tank adopts air-water backwashing, and flush sequence is followed successively by air purge---air water is combined flushing---washes, gasWash time 3～5min, air purge intensity 20～22L/s.m2; Washing time 3～5min, washing intensity 6L/s.m2, air water rushes simultaneouslyWash time 8～10min, gas, water backwash rate remain unchanged, omnidistance rinsing, rinsing intensity 1.4～2.8L/s.m2。
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| Application Number | Priority Date | Filing Date | Title |
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| CN201511030055.8A CN105585216B (en) | 2015-12-31 | 2015-12-31 | Micro polluted source method for processing water supply depth |
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| CN201511030055.8A CN105585216B (en) | 2015-12-31 | 2015-12-31 | Micro polluted source method for processing water supply depth |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106045210A (en) * | 2016-07-15 | 2016-10-26 | 长安大学 | Advanced treatment process and system for micro-polluted source water |
| CN106986507A (en) * | 2017-05-22 | 2017-07-28 | 舟山风扬环保科技有限公司 | A kind of micropollutant water integrated treatment integrated apparatus |
| CN108308100A (en) * | 2018-04-02 | 2018-07-24 | 天津农学院 | A kind of circulating water body device for cultivating penaeus monodon |
| CN111003901A (en) * | 2019-12-30 | 2020-04-14 | 河海大学 | Biological aerated filter combined device for pretreatment of feed water of micro-polluted water source |
| CN115353256A (en) * | 2022-08-22 | 2022-11-18 | 山东华城工程技术有限公司 | Water purification treatment process for micro-polluted surface water source water |
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| CN103657169A (en) * | 2013-12-04 | 2014-03-26 | 南京中电环保股份有限公司 | Tubular fiber bundle filtering method and apparatus |
| CN104108830A (en) * | 2014-07-04 | 2014-10-22 | 广东开源环境科技有限公司 | Novel recycled water advanced treatment and recycling system |
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2015
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Patent Citations (4)
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| CN102267756A (en) * | 2010-06-04 | 2011-12-07 | 中国科学院过程工程研究所 | Waste water deep treatment method through heterogeneous catalysis and ozone oxidation, and apparatus thereof |
| CN102745863A (en) * | 2012-07-04 | 2012-10-24 | 哈尔滨工业大学 | High efficiency fluidization upward flow multilayer composite filter material biological filter tank coupled with ozonation and water treatment method thereof |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106045210A (en) * | 2016-07-15 | 2016-10-26 | 长安大学 | Advanced treatment process and system for micro-polluted source water |
| CN106045210B (en) * | 2016-07-15 | 2019-08-06 | 长安大学 | A kind of slightly-polluted raw water advanced treatment process and system |
| CN106986507A (en) * | 2017-05-22 | 2017-07-28 | 舟山风扬环保科技有限公司 | A kind of micropollutant water integrated treatment integrated apparatus |
| CN108308100A (en) * | 2018-04-02 | 2018-07-24 | 天津农学院 | A kind of circulating water body device for cultivating penaeus monodon |
| CN111003901A (en) * | 2019-12-30 | 2020-04-14 | 河海大学 | Biological aerated filter combined device for pretreatment of feed water of micro-polluted water source |
| CN115353256A (en) * | 2022-08-22 | 2022-11-18 | 山东华城工程技术有限公司 | Water purification treatment process for micro-polluted surface water source water |
| CN115353256B (en) * | 2022-08-22 | 2024-04-16 | 山东华城工程技术有限公司 | Water purification treatment process for micro-polluted surface water source water |
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