CN103922542A - Method and system for pretreating contaminated raw water in long-distance water delivery pipelines - Google Patents
Method and system for pretreating contaminated raw water in long-distance water delivery pipelines Download PDFInfo
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Abstract
The invention discloses a method and a system for pretreating contaminated raw water in long-distance water delivery pipelines. The method comprises the steps of firstly feeding the raw water into a biological pretreatment reaction tank before the raw water is treated in a tap water plant, wherein a part of ammonia/nitrogen and trace organic contaminants in the raw water can be removed by microbes in the pretreatment biological reaction tank; delivering the raw water subjected to the biological pretreatment into a regulating mixing tank and adding sewage purifying chemicals; and delivering the raw water into a long-distance water delivery pipeline reactor so that the raw water has a decontamination reaction in a long period of time when the raw water stays in the pipelines during the raw water delivery process and finally delivering the reacted raw water into the tap water plant; or delivering the raw water subjected to the biological pretreatment directly into a long-distance water delivery pipeline reactor so that the raw water has a decontamination reaction in a long period of time when the raw water stays in the pipelines during the raw water delivery process, and finally delivering the reacted raw water into the tap water plant. According to the invention, the raw water is treated in the long-distance water delivery pipelines during the raw water delivery process by virtue of pretreatment facilities in a water source plant and long-distance water delivery pipelines located between the water source plant and the tap water plant and thus operating costs are reduced.
Description
Technical field
The invention belongs to technical field of drinking water treatment, relate to a kind of Long-distance Pipeline for Water Conveyance pretreatment process and treatment system of micro-polluted water.
Background technology
The drinking water source ground such as China lake, reservoir are generally subject to the pollutions such as ammonia nitrogen, organism, algae, and are combined pollution situation.Ammonia nitrogen concentration is an important indicator weighing source water pollution level, and higher ammonia nitrogen concentration can also promote growing of microorganism in pipe network, can also react with free chlorine and generate chloramines to increase the consumption of chlorine, and taste material is smelt in generation in sterilizing process; In former water, the kind of micro quantity organic pollutant and content are all increasing, wherein persistence organic pollutant and environment incretion disturb class material to be mostly toxic organics, not only HUMAN HEALTH being produced to carinogenicity, genotoxicity etc. directly threatens, can also in cholorination process, form the halogenated disinfection by-products with " three-induced effect ", further be detrimental to health; The water body blue-green algae causing due to eutrophication in addition is frequently broken out, and the meta-bolitess such as algae and the stink substance producing and algae toxin have further increased again the difficulty to water treatment.To the removal of ammonia nitrogen in micro-polluted raw, generally can consider to adopt the mode of Biological Pretreatment, the absorption by microorganism, decompose and be used to reduce ammonia nitrogen and organic concentration; Or by absorption and the biodegradable combined action of gac in carbon filtering pool.In former water, micro quantity organic pollutant exists that kind is complicated, concentration is lower, have the features such as bioconcentration, and in engineering, the normal coupling that adopts preoxidation, coagulating sedimentation and BAC process reaches and processes organic object.
Biological Pretreatment need to be based upon on the basis of longer water retention time effective removal of pollutent, this can increase capital construction and operation cost undoubtedly, its removal effect is subject to external environment variable effect larger, and the persistence organic pollutant in former water mostly has and is difficult to biodegradable characteristic, therefore Biological Pretreatment is used for removing former water organism and algae has some limitations.Make full use of the removal efficiency that existence conditions improves Biological Pretreatment, and consideration adopts cost-effective chemical treatment method, not only can make ammonia nitrogen, organism and algae in former water better be removed, can also alleviate the pollutant load of subsequent disposal unit, ultimate guarantee water supply quality safety.
Summary of the invention
The invention provides a kind of Long-distance Pipeline for Water Conveyance pretreatment process of former water, the effective removal that has solved the former water pollutant of current Biological Pretreatment need to be based upon on the basis of longer hydraulic detention time, increase the problem of capital construction and operation cost.
The present invention also provides the water treatment system of applying this kind of method.
The technical solution adopted in the present invention is that first former water entered in Biological Pretreatment reaction tank before entering waterworks processing, microorganism in Biological Pretreatment reaction tank is removed the micro quantity organic pollutant in former water, the former water of removing micro quantity organic pollutant is sent into regulate after adding water purification medicament in mixing pit and send into Long-distance Pipeline for Water Conveyance reactor, utilize the long period stopping in pipeline in water delivery process to carry out sending into water factory after decontamination reaction, maybe the former water of removing micro quantity organic pollutant is directly sent into Long-distance Pipeline for Water Conveyance reactor, utilize the long period stopping in pipeline in water delivery process to carry out sending into water factory after decontamination reaction.
The technical characterstic of the inventive method is also to adopt biologic packing material to do the carrier of microorganism growth and breeding in Biological Pretreatment reaction tank, adopts micro-hole aerator to provide microorganism required dissolved oxygen.Biological Pretreatment reaction tank adopts the form of biological contact oxidation pond, and former water retention time is controlled between 1～2h, and gas-water ratio is set to 0.8～1.2:1.Sending into the former water regulating in mixing pit is that oxygen-consumption concentration is greater than 3mg/L, or algae concentration is greater than 1,000 ten thousand/liter, or colourity, stink are obvious, or Salmonella reversion test is positive; The former water that described direct process Long-distance Pipeline for Water Conveyance reactor is sent into water factory is that oxygen-consumption concentration is lasting negative lower than 3mg/L, odorless, tasteless and Salmonella reversion test.Water purification medicament comprises chlorine, permanganate or Powdered Activated Carbon.In entering the former water regulating in mixing pit algae concentration more than 1,000 ten thousand/liter or ammonia nitrogen concentration be greater than 0.5mg/L, to regulating, in mixing pit, add chlorine and remove algae, the while can carried out the consumption of ammonia nitrogen in earlier stage; When entering the raw water turbidity and the colourity that regulate in mixing pit, obviously increase, or iron manganese content obviously raises, to regulating in mixing pit, add permanganate, by oxidisability oxidation removal pollutent in Long-distance Pipeline for Water Conveyance of permanganate, and in the coagulating sedimentation stage, performance helps the effect of solidifying turbidity removal, removes colourity and stink simultaneously; In entering the former water regulating in mixing pit, the index concentration such as TOC and micro quantity organic pollutant is higher, to regulating in mixing pit, adds Powdered Activated Carbon, and micro quantity organic pollutant in water is carried out to Adsorption.The water flow in pipeline speed of Long-distance Pipeline for Water Conveyance reactor is 1m/s, 6～10 hours residence time.
Water treatment system technical scheme of the present invention is to comprise the raw water tubes that connects the former water of waterhead area, raw water tubes pipeline connects Biological Pretreatment reaction tank, Biological Pretreatment reaction tank bottom is provided with aerating system, in Biological Pretreatment reaction tank, place biologic packing material, Biological Pretreatment reaction tank pipeline connects adjusting mixing pit, regulate in mixing pit and be provided with whipping appts, pipeline between Biological Pretreatment reaction tank and adjusting mixing pit is provided with the first electrically operated valve, Biological Pretreatment reaction tank is by super jump-over connection pump well, surmount pipe and be provided with the second electrically operated valve, in pump well, be provided with submersible pump, submersible pump connects Long-distance Pipeline for Water Conveyance reactor, submersible pump can be by the water pump in pump well to Long-distance Pipeline for Water Conveyance reactor, the connection of Long-distance Pipeline for Water Conveyance reactor enters water factory.
The invention has the beneficial effects as follows to utilize and be located at the pre-treatment facility of water source factory and the Long-distance Pipeline for Water Conveyance between Chang Yu waterworks, water source, build the strengthening pretreatment system of micro-polluted raw, the former water pollutant of effective degraded, former water can be processed in Long-distance Pipeline for Water Conveyance course of conveying in pipeline, reduce operation cost, guaranteed the stability of water outlet.
Accompanying drawing explanation
Fig. 1 is the structural representation of the former water treatment system of the present invention.
In figure, 1. raw water tubes, 2. Biological Pretreatment reaction tank, 3. aerating system, 4. biologic packing material, 5. surmount pipe, 6. the first electrically operated valve, 7. regulates mixing pit, 8. whipping appts, 9. pump well, 10. submersible pump, 11. Long-distance Pipeline for Water Conveyance reactors, 12. second electrically operated valves.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention will be described, below further illustrates and unrestricted scope involved in the present invention, and the inventive method is:
A) first the former water of waterhead area enter Biological Pretreatment reaction tank 2 and carry out the Biological Pretreatment stage through raw water tubes 1, in Biological Pretreatment reaction tank 2, place biologic packing material 4, biologic packing material 4 can adopt the fillers such as suspension ball as the carrier of microorganism growth and breeding, and in bottom, pond, aerating system 3 is set, available micro-hole aerator, micro-hole aerator provides air to carry out aeration by gas blower, to provide microorganism required dissolved oxygen.The micro quantity organic pollutants such as the ammonia nitrogen in former water, oxygen-consumption, total organic carbon (TOC) and disinfection byproduct (DBP) precursor were removed in the Biological Pretreatment stage, density loss.Wherein Biological Pretreatment reaction tank 2 can adopt the form of biological contact oxidation pond, and former water retention time is controlled between 1～2h, and gas-water ratio is set to 0.8～1.2:1.
B) Biological Pretreatment reaction tank 2 water outlets that contain suspension microorganism are entered and are regulated mixing pit 7 by pipeline, arrange and surmount pipe 5 simultaneously, according to circumstances can select directly to enter in pump well 9.When former water oxygen-consumption concentration is lasting negative lower than 3mg/L, odorless, tasteless and Salmonella reversion test, now can close the first electrically operated valve 6, open the second electrically operated valve 12, the water outlet that makes Biological Pretreatment reaction tank 2 directly enters in pump well 9 through surmounting pipe 5, then is promoted and entered Long-distance Pipeline for Water Conveyance reactor 11 and deliver to water factory by submersible pump 10.When former water oxygen-consumption concentration is greater than 3mg/L, or algae concentration is greater than 1,000 ten thousand/liter, or colourity, stink are obvious, or Salmonella reversion test is when positive, now can open the first electrically operated valve 6, close the second electrically operated valve 12,2 water outlets of Biological Pretreatment reaction tank are entered and regulate mixing pit 7, in this pond, add corresponding water purification medicament, medicament comprises chlorine, permanganate or Powdered Activated Carbon, by whipping appts 8, stir and realize mixing completely of medicament and water, for the degraded of pollutent in follow-up Long-distance Pipeline for Water Conveyance reactor 11 creates conditions.Regulate mixing pit 7 water outlets to enter pump well 9 by pipeline, then promote and enter Long-distance Pipeline for Water Conveyance reactor 11 by submersible pump 10.Regulate mixing pit 7 only as one, to mix mass transfer reaction device, water retention time is 5～8 minutes, the medicament adding carries out mixing and contacting fully with water in this pond, the needed residence time of reaction is not provided, like this can mass disposal water, save laid down cost, medicament betides in Long-distance Pipeline for Water Conveyance reactor 11 with reacting of pollutent.
C) in former water, algae concentration is increased to more than 1,000 ten thousand/liter or ammonia nitrogen concentration is greater than 0.5mg/L, can consider in mixing pit 7, to add chlorine and remove algae to regulating, and can carry out the consumption of ammonia nitrogen in earlier stage simultaneously; In former water, turbidity and colourity obviously increase, or iron manganese content obviously raises, can add permanganate to regulating in mixing pit 7, by oxidisability oxidation removal pollutent in Long-distance Pipeline for Water Conveyance of permanganate, and in the coagulating sedimentation stage, performance helps the effect of solidifying turbidity removal, removes colourity and stink simultaneously; And the index concentration such as TOC and micro quantity organic pollutant is higher in former water, can add Powdered Activated Carbon to regulating in mixing pit 7, micro quantity organic pollutant in water is carried out to Adsorption.The form that adds the lasting dosing of employing dosing pump of medicament enters Long-distance Pipeline for Water Conveyance reactor 11, to strengthen the removal of pollution substance after the water with adjusting mixing pit 7 mixes completely.
D) water after Biological Pretreatment in regulating mixing pit 7 mix with medicament after, or 2 water outlets of Biological Pretreatment reaction tank directly enter in Long-distance Pipeline for Water Conveyance reactor 11 through surmounting pipe 5, water flow in pipeline flow velocity is set to be not more than 2m/s, preferred 1m/s, keep flow rate of water flow in pipeline to reach 1m/s, realize on the one hand effective conveying of water, can avoid on the other hand in water sedimentation of suspension at pipe interior.According to the distance between Chang Yu waterworks, water source, the residence time of current in pipeline can reach 5～10 hours, even longer.There is the Long-distance Pipeline for Water Conveyance reactor 11 of longer hydraulic detention time as carrying out the place that microbiological deterioration pollutant in water or medicament and pollutant in water react, the strengthening pre-treatment that Long-distance Pipeline for Water Conveyance reactor 11 is realized micro-polluted raw.When Biological Pretreatment water outlet is through surmounting pipe 5 while entering Long-distance Pipeline for Water Conveyance reactor, in water, under the accompanying microbial film effect of the suspension microorganism, inner-walls of duct in water such as ammonia nitrogen, biodegradable organic, there is biological degradation; When Biological Pretreatment water outlet enters Long-distance Pipeline for Water Conveyance reactor 11 after regulating mixing pit 7 to add medicament, the medicaments such as the chlorine adding, permanganate or Powdered Activated Carbon carry out reacting of long period in Long-distance Pipeline for Water Conveyance reactor 11 with pollutant in water, realize the further removal of pollutent.Long-distance Pipeline for Water Conveyance reactor 11, can be used as two kinds of forms of biochemical reactor or physical-chemical reaction device.When Biological Pretreatment water outlet enters Long-distance Pipeline for Water Conveyance reactor 11 through surmounting pipe 5, accompanying microbiological deterioration ammonia nitrogen and the biodegradable organic of suspension microorganism and inner-walls of duct in water, Long-distance Pipeline for Water Conveyance reactor 11 can be used as a biochemical reactor; While adding chlorine or permanganate in regulating mixing pit 7, with organism, algae, other reducing substances generation redox reactions in water, Long-distance Pipeline for Water Conveyance reactor 11 can be used as a chemical reactor; When adding Powdered Activated Carbon, can not only there is stronger adsorptive power as benzene class, phenols, haloform and disinfection byproduct (DBP) precursor etc. to deliquescent organism in water, and other stink substances and mercury, iron, nickel etc. are also had to stronger adsorptive power, simultaneously in water or the microorganism that adheres to of tube wall again can degradation of ammonia nitrogen and partial organic substances, now Long-distance Pipeline for Water Conveyance reactor 11 is simultaneously as biochemical reactor and physical-chemical reaction device.
The applied system of the present invention as shown in Figure 1, comprise the raw water tubes 1 that connects the former water of waterhead area, raw water tubes 1 pipeline connects Biological Pretreatment reaction tank 2, Biological Pretreatment reaction tank 2 bottoms are provided with aerating system 3, the interior placement biologic packing material 4 of Biological Pretreatment reaction tank 2, Biological Pretreatment reaction tank 2 pipelines connect adjusting mixing pit 7, regulate in mixing pit 7 and be provided with whipping appts 8, pipeline between Biological Pretreatment reaction tank 2 and adjusting mixing pit 7 is provided with the first electrically operated valve 6, Biological Pretreatment reaction tank 2 connects pump well 9 by surmounting pipe 5, surmount pipe 5 and be provided with the second electrically operated valve 12, in pump well 9, be provided with submersible pump 10, submersible pump 10 connects Long-distance Pipeline for Water Conveyance reactor 11, submersible pump 10 can be by the water pump in pump well 9 to Long-distance Pipeline for Water Conveyance reactor 11, 11 connections of Long-distance Pipeline for Water Conveyance reactor enter water factory.
Experimental result of the present invention is as follows:
When water temperature is 18 ℃, the former water of taking from Taihu Lake is directly entered Long-distance Pipeline for Water Conveyance reactor 11 after Biological Pretreatment by Biological Pretreatment reaction tank 2.It is 1h that Biological Pretreatment reaction tank 2 hydraulic detention times are set, the water retention time of Long-distance Pipeline for Water Conveyance reactor 11 is 8h, investigate the removal of the pollutents such as ammonia nitrogen in " Biological Pretreatment reaction tank 2+ Long-distance Pipeline for Water Conveyance reactor 11 " combination pretreatment system, result is as table 1.
Table 1
Experimental result shows, this array mode has good removal to pollutents such as ammonia nitrogens in former water, and wherein Long-distance Pipeline for Water Conveyance reactor 11 is respectively 18.6%, 37.9% and 54.4% as biochemical reactor to the contribution rate of ammonia nitrogen, oxygen-consumption and TOC removal amount.
Specific embodiment 1:
One of Wuxi City drinking water source ground is Taihu Lake tribute arm of lake, former water is delivered to Xue Lang water factory and jackshaft water factory by Long-distance Pipeline for Water Conveyance reactor 11 after southern spring source factory carries out pre-treatment, pre-treatment facility comprises Biological Pretreatment reaction tank 2 and regulates mixing pit 7, conventionally regulate the chlorine that adds 0.8mg/L in mixing pit 7, to strengthen the removal to algae and algae metablite.On October 28th, 2013, spot sampling analysis, former water decontamination result is as following table 2:
Table 2
As shown in Table 2,11 pairs of ammonia nitrogens of Long-distance Pipeline for Water Conveyance reactor, oxygen-consumption, UV
254, algae and TOC removal amount contribution rate be respectively 75.4%, 43%, 76.1%, 87.5% and 90.9%.Result shows, the higher former water of oxygen-consumption, after Biological Pretreatment reaction tank 2, adds chlorine before entering Long-distance Pipeline for Water Conveyance reactor 11, can significantly improve the removal effect of each pollutent.Therefore, Long-distance Pipeline for Water Conveyance reactor 11 has been strengthened the removal of pollutent effectively, and water supply is conducive to ensure safety.
The present invention is directed to the present situation that drinking water source water is polluted, utilize the Long-distance Pipeline for Water Conveyance reactor 11 between Chang Yu waterworks, water source, the micro-polluted water preconditioning technique of a kind of Biological Pretreatment reaction tank 2 and 11 combinations of Long-distance Pipeline for Water Conveyance reactor is proposed, ammonia nitrogen, algae and metabolite and micro quantity organic pollutant in former water are removed in strengthening, with guarantee.
Tool of the present invention has the following advantages: this pretreatment system is for the practical situation of Raw Drinking Water conveying engineering, make full use of former water and in Long-distance Pipeline for Water Conveyance, have the feature compared with long residence time, according to raw water quality situation, add different medicaments, Long-distance Pipeline for Water Conveyance, as biochemical reactor or physical-chemical reaction device, is realized to the strengthening of former water pollutant and removes.The removal of former water ammonia nitrogen not only can reduce the chlorine dosage of disinfection unit in water factory, can reduce thus the growing amount of disinfection byproduct (DBP); In former water, smell the removal of taste material, can improve the Oranoleptic indicator of tap water; The removal of the micro quantity organic pollutant in former water, can effectively reduce and have the generation of " carcinogenic, teratogenesis, mutagenesis " working substance, and persistence organic pollutant or the effective removal of endocrine disrupter in pretreatment system, to ensureing water supply quality safety, ensureing that DRINKING WATER health is significant.
The present invention also tool has the following advantages:
1) utilize Long-distance Pipeline for Water Conveyance as water processing reactor, shortened former water water retention time of 2 in Biological Pretreatment reaction tank, in engineering, can save capital cost and running cost; 2) make full use of the residence time of Biological Pretreatment water outlet in long-distance pipe, structure biochemical reactor or physical-chemical reaction device, ammonia nitrogen, oxygen-consumption, algae and metabolite thereof, micro quantity organic pollutant are effectively removed in reactor, can reduce the generation of disinfection unit disinfection byproduct (DBP), ensure water supply quality safety;
3) native system water outlet enters water treatment system in waterworks, has effectively alleviated the pollution load of unit for treating water in water factory, can reduce cost of water treatment.
Claims (8)
1. the Long-distance Pipeline for Water Conveyance pretreatment process of a micro-polluted water, it is characterized in that: first former water entered in Biological Pretreatment reaction tank (2) before entering waterworks processing, microorganism in Biological Pretreatment reaction tank (2) is removed part ammonia nitrogen and the micro quantity organic pollutant in former water, the former water of removing part ammonia nitrogen and micro quantity organic pollutant is sent into regulate after adding water purification medicament in mixing pit (7) and send into Long-distance Pipeline for Water Conveyance reactor (11), utilize the long period stopping in pipeline in water delivery process to carry out sending into water factory after decontamination reaction, maybe the former water of removing part ammonia nitrogen and micro quantity organic pollutant is directly sent into Long-distance Pipeline for Water Conveyance reactor (11), utilize the long period stopping in pipeline in water delivery process to carry out sending into water factory after decontamination reaction.
2. according to the Long-distance Pipeline for Water Conveyance pretreatment process of a kind of micro-polluted water described in claim 1, it is characterized in that: in described Biological Pretreatment reaction tank (2), adopt biologic packing material (4) to do the carrier of microorganism growth and breeding, adopt micro-hole aerator to provide microorganism required dissolved oxygen.
3. according to the Long-distance Pipeline for Water Conveyance pretreatment process of a kind of micro-polluted water described in claim 1, it is characterized in that: described Biological Pretreatment reaction tank (2) adopts the form of biological contact oxidation pond, former water retention time is controlled between 1～2h, and gas-water ratio is set to 0.8～1.2:1.
4. according to the Long-distance Pipeline for Water Conveyance pretreatment process of a kind of micro-polluted water described in claim 1, it is characterized in that: described in to send into the former water regulating in mixing pit (7) be that oxygen-consumption concentration is greater than 3mg/L, or algae concentration is greater than 1,000 ten thousand/liter, or colourity, stink are obvious, or Salmonella reversion test is positive; The former water that described direct process Long-distance Pipeline for Water Conveyance reactor (11) is sent into water factory is that oxygen-consumption concentration is lasting negative lower than 3mg/L, odorless, tasteless and Salmonella reversion test.
5. according to the Long-distance Pipeline for Water Conveyance pretreatment process of a kind of micro-polluted water described in claim 1, it is characterized in that: described water purification medicament comprises chlorine, permanganate or Powdered Activated Carbon.
6. according to the Long-distance Pipeline for Water Conveyance pretreatment process of a kind of micro-polluted water described in claim 5, it is characterized in that: describedly when entering in the former water regulating in mixing pit (7) the above or ammonia nitrogen concentration of 1,000 ten thousand/liter of algae concentration, be greater than 0.5mg/L, to regulating, in mixing pit (7), add chlorine and remove algae, can carry out the consumption of ammonia nitrogen in earlier stage simultaneously; When entering the raw water turbidity and the colourity that regulate in mixing pit (7), obviously increase, or iron manganese content obviously raises, to regulating in mixing pit (7), add permanganate, by oxidisability oxidation removal pollutent in Long-distance Pipeline for Water Conveyance of permanganate, and in the coagulating sedimentation stage, performance helps the effect of solidifying turbidity removal, removes colourity and stink simultaneously; In entering the former water regulating in mixing pit (7), the index concentration such as TOC and micro quantity organic pollutant is higher, to regulating in mixing pit (7), adds Powdered Activated Carbon, and micro quantity organic pollutant in water is carried out to Adsorption.
7. according to the Long-distance Pipeline for Water Conveyance pretreatment process of a kind of micro-polluted water described in claim 1, it is characterized in that: the water flow in pipeline speed of described Long-distance Pipeline for Water Conveyance reactor (11) is 1m/s, 6～10 hours residence time.
8. be applied to the treatment system in the Long-distance Pipeline for Water Conveyance pretreatment process of a kind of micro-polluted water described in claim 1, it is characterized in that: comprise the raw water tubes (1) that connects the former water of waterhead area, raw water tubes (1) pipeline connects Biological Pretreatment reaction tank (2), Biological Pretreatment reaction tank (2) bottom is provided with aerating system (3), in Biological Pretreatment reaction tank (2), place biologic packing material (4), Biological Pretreatment reaction tank (2) pipeline connects adjusting mixing pit (7), regulate in mixing pit (7) and be provided with whipping appts (8), pipeline between Biological Pretreatment reaction tank (2) and adjusting mixing pit (7) is provided with the first electrically operated valve (6), Biological Pretreatment reaction tank (2) connects pump well (9) by surmounting pipe (5), surmount pipe (5) and be provided with the second electrically operated valve (12), in pump well (9), be provided with submersible pump (10), submersible pump (10) connects Long-distance Pipeline for Water Conveyance reactor (11), submersible pump (10) can be by the water pump in pump well (9) to Long-distance Pipeline for Water Conveyance reactor (11), Long-distance Pipeline for Water Conveyance reactor (11) connection enters water factory.
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| CN110127835A (en) * | 2019-06-11 | 2019-08-16 | 东华大学 | A method of flowing chemical method is catalyzed decoloring dye waste water |
| CN110158698A (en) * | 2019-06-20 | 2019-08-23 | 安徽工业大学 | A kind of face-off bidirectional booster ecology drinking-water system and application method |
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| CN101134629A (en) * | 2007-08-01 | 2008-03-05 | 济南市供排水监测中心 | City tap-water highly effective low-toxin release algae-removing method |
| WO2008141113A1 (en) * | 2007-05-10 | 2008-11-20 | O'regan Patrick T Jr | Systems, methods and components for water treatment and remediation |
| CN103523893A (en) * | 2013-10-24 | 2014-01-22 | 哈尔滨工业大学 | Method for killing limnoperna fortune in long-distance raw water delivery pipeline by combined effect of potassium permanganate and sodium hypochlorite |
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| CN1657439A (en) * | 2005-01-27 | 2005-08-24 | 上海自来水市北科技有限公司 | Aerobic biological pretreatment method for purificating raw water |
| WO2008141113A1 (en) * | 2007-05-10 | 2008-11-20 | O'regan Patrick T Jr | Systems, methods and components for water treatment and remediation |
| CN101134629A (en) * | 2007-08-01 | 2008-03-05 | 济南市供排水监测中心 | City tap-water highly effective low-toxin release algae-removing method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108580543A (en) * | 2018-06-28 | 2018-09-28 | 四川省天晟源环保股份有限公司 | A kind of new-type mortar reactor and its operating method for soil remediation |
| CN110127835A (en) * | 2019-06-11 | 2019-08-16 | 东华大学 | A method of flowing chemical method is catalyzed decoloring dye waste water |
| CN110158698A (en) * | 2019-06-20 | 2019-08-23 | 安徽工业大学 | A kind of face-off bidirectional booster ecology drinking-water system and application method |
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| CN103922542B (en) | 2016-08-24 |
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