CN101863564B - Drinking water source advanced water treatment method based on resin and zeolite - Google Patents
Drinking water source advanced water treatment method based on resin and zeolite Download PDFInfo
- Publication number
- CN101863564B CN101863564B CN201010214112.9A CN201010214112A CN101863564B CN 101863564 B CN101863564 B CN 101863564B CN 201010214112 A CN201010214112 A CN 201010214112A CN 101863564 B CN101863564 B CN 101863564B
- Authority
- CN
- China
- Prior art keywords
- resin
- zeolite
- reactor
- drinking water
- treatment method
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Treatment Of Water By Ion Exchange (AREA)
Abstract
本发明公开了基于树脂和沸石的饮用水源水深度净化处理方法，属于饮用水源水处理领域。其步骤为：在反应器中加入粉体树脂和沸石；饮用水源水流经反应器，同时从新鲜树脂罐中向反应器中泵入树脂沸石与清水的混合液；处理后的混合水进行磁性或自然沉淀后流出。将沉淀下来的树脂沸石部分回流至反应器，部分送入再生池；在再生池中加入再生剂对树脂沸石进行再生，使用过的再生剂进行提纯回用或处置；将经过再生的树脂沸石送入新鲜树脂储槽备用，按需回用至反应器。处理后的水达到现行的城市供水水质标准和生活饮用水卫生标准，实现了减少有机物及氨氮等消毒副产物前提物的目的。本发明具有工艺简单、投资较少、运行成本低、处理效果好的显著优点。The invention discloses a resin and zeolite-based drinking water source water deep purification treatment method, which belongs to the field of drinking water source water treatment. The steps are: add powdered resin and zeolite to the reactor; drinking water source water flows through the reactor, and at the same time pump the mixture of resin zeolite and clear water from the fresh resin tank into the reactor; the treated mixed water is magnetically Or flow out after natural precipitation. Part of the precipitated resin zeolite is refluxed to the reactor, and part is sent to the regeneration tank; the regeneration agent is added to the regeneration tank to regenerate the resin zeolite, and the used regeneration agent is purified for reuse or disposal; the regenerated resin zeolite is sent to Put it into the fresh resin storage tank for standby, and reuse it to the reactor as needed. The treated water meets the current urban water supply quality standards and sanitary standards for drinking water, and achieves the purpose of reducing organic matter and ammonia nitrogen and other disinfection by-product prerequisites. The invention has the obvious advantages of simple process, less investment, low operating cost and good treatment effect.
Description
Technical field
The present invention relates to a kind for the treatment of process for seasonal high-pollution load drinking water resource, refer to utilize specifically have the method that magnetic powder ion exchange resin and zeolite are removed seasonal high organic pollutant and seasonal high ammonia nitrogen in the drinking water resource fast.
Background technology
In recent years along with China's rapid development of economy, standard of living significantly improve, cause earth surface water source water quality to worsen, and people are improving constantly simultaneously to the requirement of drinking-water quality.The key issue that current drinking water treatment faces is the removal problem of seasonal high organic pollutant and seasonal high ammonia nitrogen etc.Natural organic matter (such as humic acid etc.) can produce the problem that look is smelt the aspects such as flavor, and the precursor that is considered to the halogenation disinfection byproduct (DBP), can react with chlorhexidine-containing disinfectant, generation has the disinfection byproduct (DBP) of " mutagenesis, teratogenesis, carcinogenic ", such as haloform, halogen acetic acid etc.And the ammonia-nitrogen content in the water outlet is higher, can cause the breeding growth of nitrococcus and nitrifier in the pipe network, thereby make the content overproof of nitrate and nitrite in the pipe network, the excessive meeting of nitrate makes the baby suffer from methemoglobinemia, nitric nitrogen (NO in tap water
3-will make red blood corpuscle can not be with oxygen and cause baby's death by suffocation when N) content is higher than 10mg/L; In addition, nitrate and Nitrite transformation be can produce " carcinogenic, mutagenesis, teratogenesis " after the nitrosamine three cause material.In view of the potential hazard of ammonia nitrogen, " Urban water supply water quality standard " (CJ/T206-2005) and " drinking water sanitary standard " all clear and definite requirement to ammonia nitrogen in (GB5749-2006).Based on above-mentioned situation, conventional water treatment coagulation-precipitation-filtration-sterilization process can not meet drinking water quality standard.
Seasonal high organic pollutant and high ammonia nitrogen are the difficult problems of drinking water treatment, and conventional water treatment process can't have good removal to high organism and high ammonia nitrogen.In the prior art, the treatment process of natural organic matter is mainly contained enhanced coagulation, ozone-active carbon, membrane filtration etc.It is existent defect all, and coagulating agent does not have reproducibility in the enhanced coagulation, and produces more mud, is difficult for processing; Gac is relatively poor to organic chloride, chlorination mutagenic matter precursor removal effect, constantly regenerate or change, when the ozonize water outlet was carried out chlorine disinfectant again, some intermediate product was easy to react with chlorine, produce more haloform class material, the Mutagenicity of water is increased; Membrane filtration possesses higher removal organism ability, pollutes but easily produce film, and cleans difficulty.
Powdered resin is that a kind of grain diameter is the solid macromolecule material less than 500 μ m, contains abundant pore structure and ionic group, has electrochemistry absorption and ion-exchange dual function; Because its particle diameter is less, this resin has larger specific surface area, higher rate of mass transfer and fluid transportation performance preferably.In actual applications, after powdered resin can stir certain hour with the water mixing of required processing, with resin and moisture from, the organism in the water body and inorganics are replaced or be adsorbed on the resin, thus the purification of realization water body.
Magnetic resin is the magnetic macromolecule copolymer resin of tool, can realize by magnetic the sharp separation of resin and water, can effectively improve organic matter removal efficient in actual applications and is subject to extensive concern.At present, MIEX magnetic powder resin (the Inorganic contaminant removal from water that is produced by Australian Orica Watercare company, Bourke et al. Patent No. US 7,291,272 B2), be widely used in the advanced treatment of drinking water resource, it has better removal effect to disinfection byproduct (DBP) precursors such as natural organic matters in the drinking water resource; But this resin manufacture cost is higher, expensive.
The removal method of ammonia nitrogen mainly contains biological process and physico-chemical processes two large classes.Biological process is fit to the processing of the former water of ammonia nitrogen of lower concentration, and seasonal high ammonia nitrogen can have to biological process the effect of inhibition.Physico-chemical processes mainly comprises absorption method and membrane filtration.Membrane filtration is widely used than Gao Erwei owing to the film price.Wherein absorption method is mainly used Activated Zeolite Adsorption.Its principle since zeolite by silica (SiO
4) and alumina (AlO
4) tetrahedron element and other positively charged ions be according to certain mode of connection opening structure that form, that have three-dimensional frame shape, make it have unique absorption and ion-exchange performance, and zeolite is considered to extremely promising material for water treatment because of the advantage such as have aboundresources, can regenerate.
Summary of the invention
1, invents the technical problem that will solve
The problem that is difficult to process for seasonal high organic pollutant in the drinking water treatment and seasonal high ammonia nitrogen, the invention provides the drinking water source advanced water treatment method based on resin and zeolite, for seasonal high organism and high ammonia nitrogen in the drinking water resource, adopt powdered resin and zeolite to process, not only can solve the problem of seasonal high organism and high ammonia nitrogen, reduce the treatment time, improve and remove efficient, repeat regeneration by salts solution simultaneously and reduced running cost, the utilization of resource utilization zeolite and resin, saved processing cost.
2, technical scheme of the present invention
Based on the drinking water source advanced water treatment method of resin and zeolite, its step comprises:
(1) in advance adding accounts for reactor volume than the mixture that is the powdex of 0.1-10% and zeolite in resin storage tank, and the volume ratio of resin and zeolite is 1:1-1:5;
(2) drinking water resource is flowed through and can be realized liquid-solid well-mixed reactor, pumps into simultaneously the mixed solution of resin and clear water from resin container in the reactor, and the mixed solution flow accounts for processes 0.1 ~ 10% of discharge;
(3) mixing water after the processing carries out flowing out after magnetic or the natural subsidence.
Continue following steps and carry out resin and zeolite regeneration processing:
(4) resin and zeolite under step (3) precipitation are partly refluxed to reactor, part enters regenerated reactor;
(5) add regenerator in the regenerated reactor resin is regenerated, the purify reuse or locate of used regenerator
Put;
(6) resin of regeneration in the step (5) and zeolite are sent in the fresh resin storage tank for subsequent use, as required reuse
To reactor.
Powdex in the above-mentioned steps (1) refers to particle diameter less than the high molecular polymer of 500 μ m, includes but not limited to the product of Nanjing University or the development of Australian ORICA company.Preferred magnetic styrene or acrylic acid series strongly basic anion exchange resin and composite function resin, wherein magnetic styrene is that strong anion-exchange resin is that Nanjing University's determined magnetic styrene in the patent application 200910264445.X that submitted on December 22nd, 2009 is strong anion-exchange resin, and the magnetic acrylic acid series strongly basic anion exchange resin is Nanjing University's determined magnetic acrylic acid series strongly basic anion exchange resin in the patent application 201010017687.1 of submitting on January 12nd, 2010; Zeolite is particle diameter 20 orders ~ 60 purpose natural zeolite or permutites.
Liquid-solid abundant mixing comprises that mechanical stirring, strength stirring or hydraulic mixing and all can realize liquid-solid mixed uniformly mode in the step (2).The hydraulic detention time that its Central Plains water enters reactor is 5 ~ 300min.
Magnetic sedimentation described in the step (3) refers to utilize and adds magnetic action and promote separating of resin and water, and natural subsidence refers to mainly rely on the means such as gravity settling to realize above-mentioned sepn process, comprises that means such as utilizing inclined tube, swash plate promote sedimentation.
60 ~ 95% resin zeolite mixtures that have in the step (4) are back to reactor, and all the other resin zeolite mixtures of 5 ~ 40% enter regenerated reactor.The degree here is equal at weight and volume, so both all can.
Regenerator in the step (5) is salts solution, comprises sodium-chlor, Repone K, sodium bicarbonate, saleratus, yellow soda ash or solution of potassium carbonate etc., and weight percent concentration is 8 ~ 20%.Regenerated liquid and resin and zeolite mixing time are 10-200min, and the settling time is 30-90min.
3, beneficial effect
The invention provides the drinking water source advanced water treatment method based on resin and zeolite, according to the characteristics of seasonal high organism and ammonia nitrogen in the drinking water resource, effective economy is processed water outlet COD fast
MnReach ammonia nitrogen concentration and reached country's " drinking water sanitary standard " (GB5749-2006), the recycling for resin provides an approach simultaneously.Renovation process of the present invention simultaneously resource utilization utilize resin and zeolite, saved processing cost.
Specific embodiments
Embodiment 1
The influent COD of certain source water
MnBe 6mg/L, ammonia-nitrogen content is 2.0mg/L, with 20m
3The flow velocity of/h enters 10m
3In the stirring reactor, simultaneously from adding 0.1m
3Magnetic styrene be strong anion-exchange resin (Nanjing University's determined magnetic styrene in the patent application 200910264445.X that submitted on December 22nd, 2009 is strong anion-exchange resin) and 0.1m
3Natural zeolite (40 order) fresh resin groove in 0.1m
3The flow pump of/h enters the mixed solution of resin zeolite and water, stirs in reactor.Resin zeolite and reactedly go out water mixed liquid and enter inclined-plate clarifying basin is realized separating of resin zeolite and water, and the resin zeolite of bottom settlings is with 0.1m
3The flow of/h enters surge tank, 80%(weight percent wherein) pumps into reuse in the reactor, the 20%(weight percent) enters in the regeneration tank, operating weight per-cent 12%NaCl regeneration of waste liquor, resin zeolite after the regeneration enters in the fresh resin tank and reuses, the reuse after purifying of the regenerated liquid after the use.Resin in the resin container is according to an amount of the replenishing of number of dropouts.Continuous effluent, COD can be realized in settling tank top
Mn＜3mg/L, ammonia nitrogen＜0.5mg/L.
Magnetic styrene recited above is strong anion-exchange resin, and its structure is as follows:
This resin specific saturation magnetization is 10 emu/g, and median size is 250 μ m, and the highly basic exchange capacity is 3.61mmol/g.Its preparation method: be 1 μ m γ-Fe with 94g 1-chloro-4-methyl-benzene, 6g divinylbenzene (purity 80%), 10g normal heptane, 10g polyvinyl pyridine-styrol copolymer, 0.40g benzoyl peroxide, 5g median size
2O
3Magnetic joins in the 1L there-necked flask.Stirring until oil phase evenly after, be warming up to 65 ℃, slowly adding in the there-necked flask and containing the gelatin weight ratio is 1% aqueous solution 450g.The stirring and adjusting rotating speed is 500r/min, is warming up to 80 ℃, is warming up to 95 ℃ behind the insulation 2h, keeps 14h, reaction terminating.Discharging after the cooling is dried after going out pore-creating agent with washed with methanol.In the 1L there-necked flask, add the 80g resin, add 200g N, the N-dimethylethanolamine, 30 ℃ of lower insulation dischargings after 16 hours, being washed till neutrality can get.
Embodiment 2
The influent COD of certain source water
MnBe 10mg/L, ammonia-nitrogen content is 3.0mg/L, with 20m
3The flow velocity of/h enters 20m
3In the stirring reactor, simultaneously from adding 0.2m
3Magnetic acrylic acid series strongly basic anion exchange resin (Nanjing University is determined magnetic acrylic acid series strongly basic anion exchange resin in the patent application 201010017687.1 of submitting on January 12nd, 2010) and 0.4m
3Permutite (20-40 order) fresh resin groove in 0.2m
3The flow pump of/h enters the mixed solution of resin zeolite and water, stirs in reactor.Resin zeolite and reactedly go out water mixed liquid and enter inclined-plate clarifying basin is realized separating of resin zeolite and water, and the resin zeolite of bottom settlings is with 0.2m
3The flow of/h enters surge tank, 90%(weight percent wherein) pumps into reuse in the reactor, the 10%(weight percent) enters in the regeneration tank, operating weight per-cent 15%NaCl regeneration of waste liquor, resin zeolite after the regeneration enters in the fresh resin tank and reuses, the reuse after purifying of the regenerated liquid after the use.Resin in the resin container is according to an amount of the replenishing of number of dropouts.Continuous effluent, COD can be realized in settling tank top
Mn＜3mg/L, ammonia nitrogen＜0.5mg/L.
Magnetic acrylic acid series strongly basic anion exchange resin recited above, particle diameter mainly are distributed in 300 ~ 400 μ m, and the highly basic exchange capacity reaches 3.21 mmol/g, are 30emu/g than saturated magnetic intensity, and its basic structure formula is as follows:
The preparation method of this resin is as follows: it is that 3% gelatin, 23% sodium chloride aqueous solution join in the 2L there-necked flask that 500g is contained weight ratio, and mixing speed is controlled at 100 ~ 150rpm.Mixing solutions and the 102g particle diameter of 100g methyl acrylate, 2g trimethylammonium vinylformic acid (trishydroxymethyl propyl group) ester, 1.0g Diisopropyl azodicarboxylate, 100g toluene, 53g ethyl acetate are about the Fe 3 O 4 magnetic particle of 0.1 μ m after even the mixing, join in the there-necked flask and be warming up to 50 ℃, kept 8 hours, be warming up to 85 ℃, keep discharging after 15 hours; Clean after discharging dries with ethanol, adds 2 times of quadrols to weight resin 100 ℃ of lower maintenance dischargings after 8 hours; After the cleaning, add 10% liquid caustic soda 300mL, add the 40.8g methyl iodide, 20 ℃ of lower reaction dischargings after 10 hours are with NaCl cleaning and get final product after transition.
Embodiment 3
The influent COD of certain source water
MnBe 15mg/L, ammonia-nitrogen content is 5.0mg/L, with 20m
3The flow velocity of/h enters 20m
3In the stirring reactor, simultaneously from adding 0.5m
3Magnetic acrylic acid series strongly basic anion exchange resin (Nanjing University is determined magnetic acrylic acid series strongly basic anion exchange resin in the patent application 201010017687.1 of submitting on January 12nd, 2010) and 1m
3Permutite (20-40 order) fresh resin groove in 0.1m
3The flow pump of/h enters the mixed solution of resin zeolite and water, stirs in reactor.Resin and reactedly go out water mixed liquid and enter inclined-plate clarifying basin is realized separating of resin zeolite and water, and the resin zeolite of bottom settlings is with 0.2m
3The flow of/h enters surge tank, wherein 90% pumps into reuse in the reactor, and 10% enters in the regeneration tank, operating weight per-cent 20%NaCl regeneration of waste liquor, and the resin zeolite after the regeneration enters in the fresh resin tank and reuses, the reuse after purifying of the regenerated liquid after the use.Resin in the resin container is according to an amount of the replenishing of number of dropouts.Continuous effluent, COD can be realized in settling tank top
Mn＜3mg/L, ammonia nitrogen＜0.5mg/L.
Embodiment 4
Source water and reactor are with embodiment 1, simultaneously from adding 0.5m
3Magnetic styrene be strong anion-exchange resin (deriving from Nanjing University's determined magnetic styrene in the patent application 200910264445.X that submitted on December 22nd, 2009 is strong anion-exchange resin) and 0.5m
3Natural zeolite (40 order) fresh resin groove in 2m
3The flow pump of/h enters the mixed solution of resin zeolite and water, stirs in reactor.Resin zeolite and reactedly go out water mixed liquid and enter inclined-plate clarifying basin is realized separating of resin zeolite and water, and the resin zeolite of bottom settlings is with 0.1m
3The flow of/h enters surge tank, wherein 60% pumps into reuse in the reactor, and 40% enters in the regeneration tank, operating weight per-cent 8%KCl regeneration of waste liquor, and regenerator and resin and zeolite mixing time are 10-200min, the settling time is 30-90min.Resin zeolite after the regeneration enters in the fresh resin tank and reuses, the reuse after purifying of the regenerated liquid after the use.Resin in the resin container is according to an amount of the replenishing of number of dropouts.Continuous effluent, COD can be realized in settling tank top
Mn＜3mg/L, ammonia nitrogen＜0.5mg/L.
Embodiment 5
Source water and reactor are with embodiment 2, with 20m
3The flow velocity of/h enters 20m
3In the stirring reactor, simultaneously from adding 0.2m
3Magnetic acrylic acid series strongly basic anion exchange resin (Nanjing University is determined magnetic acrylic acid series strongly basic anion exchange resin in the patent application 201010017687.1 of submitting on January 12nd, 2010) and 0.4m
3Permutite (20-40 order) fresh resin groove in 0.2m
3The flow pump of/h enters the mixed solution of resin zeolite and water, stirs in reactor.Resin zeolite and reactedly go out water mixed liquid and enter inclined-plate clarifying basin is realized separating of resin zeolite and water, and the resin zeolite of bottom settlings is with 0.2m
3The flow of/h enters surge tank, 70%(weight percent wherein) pumps into reuse in the reactor, the 30%(weight percent) enters in the regeneration tank, the regeneration of operating weight per-cent 15% sodium hydrogen carbonate solution, resin zeolite after the regeneration enters in the fresh resin tank and reuses, the reuse after purifying of the regenerated liquid after the use.Resin in the resin container is according to an amount of the replenishing of number of dropouts.Continuous effluent, COD can be realized in settling tank top
Mn＜3mg/L, ammonia nitrogen＜0.5mg/L.
Embodiment 6
All the other conditions are with embodiment 1, only be to be that strong anion-exchange resin changes the Australian ORICA product MIEX of company magnetic powder resin into magnetic styrene, it is strong anion-exchange resin that its treatment effect slightly is worse than magnetic styrene, but continuous effluent can be realized in settling tank top, also so that COD
Mn＜3mg/L, ammonia nitrogen＜0.5mg/L.
Claims (9)
1. drinking water source advanced water treatment method based on resin and zeolite, its step comprises:
(1) in advance adding accounts for the powdex of reactor volume 0.1-10% and the mixture of zeolite in resin storage tank, and the volume ratio of resin and zeolite is 1:1-1:5;
(2) drinking water resource is flowed through and can be realized liquid-solid well-mixed reactor, pumps into simultaneously the mixed solution of resin and clear water from resin container in the reactor, and the mixed solution flow accounts for processes 0.1 ~ 10% of discharge;
(3) mixing water after the processing carries out flowing out after magnetic or the natural subsidence.
2. the drinking water source advanced water treatment method based on resin and zeolite according to claim 1 is characterized in that continuing following steps:
(4) resin and zeolite under step (3) precipitation are partly refluxed to reactor, part enters regenerated reactor;
(5) add regenerator in the regenerated reactor resin is regenerated, used regenerator purify reuse or disposal;
(6) resin of regeneration in the step (5) and zeolite are sent in the fresh resin storage tank for subsequent use, reuse is to reactor as required.
3. the drinking water source advanced water treatment method based on resin and zeolite according to claim 2, it is characterized in that the powdex described in the step (1) refers to particle diameter less than the high molecular polymer of 500 μ m, described zeolite is the natural or permutites of particle diameter 20 orders～60 purposes.
4. the drinking water source advanced water treatment method based on resin and zeolite according to claim 3 is characterized in that described powdex is magnetic styrene or acrylic acid series strongly basic anion exchange resin and composite function resin.
5. the drinking water source advanced water treatment method based on resin and zeolite according to claim 4, it is characterized in that step (2) Central Plains water with hydraulic detention time 5～300min reactor of flowing through, liquid-solid abundant mixing comprises that mechanical stirring, strength stirring or hydraulic mixing and all can realize liquid-solid mixed uniformly mode.
6. each described drinking water source advanced water treatment method based on resin and zeolite according to claim 1～5, it is characterized in that the magnetic sedimentation described in the step (3) refers to utilize adds magnetic action and promotes separating of resin and water, natural subsidence refers to mainly rely on the gravity settling means to realize above-mentioned sepn process, comprises utilizing inclined tube or swash plate to promote sedimentation.
7. each described drinking water source advanced water treatment method based on resin and zeolite according to claim 2～5, it is characterized in that 60～95% resin zeolite mixtures in the step (4) are back to reactor, remaining resin zeolite mixture enters regenerated reactor.
8. each described drinking water source advanced water treatment method based on resin and zeolite according to claim 2～5, it is characterized in that the regenerator in the step (5) is sodium-chlor, Repone K, sodium bicarbonate, saleratus, yellow soda ash or solution of potassium carbonate, weight percent concentration is 8～20%.
9. the drinking water source advanced water treatment method based on resin and zeolite described in according to claim 8 is characterized in that regenerator and resin and zeolite mixing time are 10-200min in the step (5), and the settling time is 30-90min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010214112.9A CN101863564B (en) | 2010-07-01 | 2010-07-01 | Drinking water source advanced water treatment method based on resin and zeolite |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010214112.9A CN101863564B (en) | 2010-07-01 | 2010-07-01 | Drinking water source advanced water treatment method based on resin and zeolite |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101863564A CN101863564A (en) | 2010-10-20 |
| CN101863564B true CN101863564B (en) | 2013-01-09 |
Family
ID=42955536
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010214112.9A Active CN101863564B (en) | 2010-07-01 | 2010-07-01 | Drinking water source advanced water treatment method based on resin and zeolite |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101863564B (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102205995A (en) * | 2011-05-14 | 2011-10-05 | 南京大学 | System and method for advanced treatment of drinking water based on vertical flow type three-phase hybrid reactor |
| CN102372368B (en) * | 2011-09-30 | 2013-08-07 | 南京大学 | Water advanced purifying treatment method of drinking water source based on powdered resin |
| AU2013204708B2 (en) * | 2012-05-25 | 2016-11-03 | Ixom Operations Pty Ltd | Water Treatment Process |
| CN104609642B (en) * | 2013-11-05 | 2016-09-14 | 中国科学院沈阳应用生态研究所 | A method for recycling ion-exchange resin denitrification regenerated brine |
| CN106348388A (en) * | 2016-11-09 | 2017-01-25 | 南京大学 | Application of magnetic resin in water sterilization and disinfection field and method for removing pathogenic bacteria and drug resistance gene from drinking water |
| CN106904769B (en) * | 2017-04-28 | 2022-04-12 | 南京环保产业创新中心有限公司 | Method for integrated adsorption and desorption liquid application for removing total nitrogen pollutants in wastewater |
| CN110922947B (en) * | 2019-12-10 | 2022-03-22 | 桂林理工大学 | An additive for reducing the inhibition of seawater on the swelling property of bentonite |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1432540A (en) * | 2001-12-20 | 2003-07-30 | 株式会社饭田建设 | Complex filter and high-purity water producing method and equipment with the complex filter |
| US7291272B2 (en) * | 2004-05-07 | 2007-11-06 | Orica Australia Pty Ltd. | Inorganic contaminant removal from water |
| CN101209869A (en) * | 2007-12-22 | 2008-07-02 | 曹广雪 | Prescription capable of simultaneously purifying drinking water and air in kitchen |
-
2010
- 2010-07-01 CN CN201010214112.9A patent/CN101863564B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1432540A (en) * | 2001-12-20 | 2003-07-30 | 株式会社饭田建设 | Complex filter and high-purity water producing method and equipment with the complex filter |
| US7291272B2 (en) * | 2004-05-07 | 2007-11-06 | Orica Australia Pty Ltd. | Inorganic contaminant removal from water |
| CN101209869A (en) * | 2007-12-22 | 2008-07-02 | 曹广雪 | Prescription capable of simultaneously purifying drinking water and air in kitchen |
Non-Patent Citations (1)
| Title |
|---|
| 张龙等.吸附法处理水体中溶解性有机物的研究进展.《离子交换与吸附》.2009,第25卷(第1期),91-96. * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101863564A (en) | 2010-10-20 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101863564B (en) | Drinking water source advanced water treatment method based on resin and zeolite | |
| CN100567181C (en) | Method for removing arsenic in groundwater by pre-oxidation-compound electrolysis | |
| CN104276646B (en) | A kind of method rapidly and efficiently removing Heavy Metals in Waters | |
| CN101559988B (en) | Treatment method of ammonia nitrogen wastewater | |
| US11529609B2 (en) | Preparation method and application for a resin-based iron oxide-containing composite phosphate removal adsorbent | |
| WO2014153965A1 (en) | Composite flocculating agent and method for processing radioactive elements iron, cobalt, manganese and silver in nuclear wastewater | |
| CN101423265A (en) | Ion-exchange denitrification and phosphorus removal advanced treatment method | |
| CN105347574B (en) | A kind of defluorination method and processing system of graphite purification waste water | |
| WO2013123780A1 (en) | Advanced treatment method for biochemical tail water of coking wastewater | |
| CN101696066A (en) | Method for removing organic pollutants from water by drinking water enhanced treatment | |
| CN203112625U (en) | Emergency treatment system for sudden thallium pollution of raw water | |
| CN107442071B (en) | A Nanocomposite for Simultaneously Selective Adsorption of Phosphorus and Nitrate and Its Application | |
| CN104176845A (en) | Cold-rolling alkaline oil-containing wastewater reuse treatment method | |
| WO2015021884A1 (en) | Method for regeneration of ion exchange resin causing reduction of desorption liquid | |
| CN103613210A (en) | Method and process for synchronously removing perchlorate and nitrate in drinking water | |
| CN103274539A (en) | Method for removing fluoride in drinking water by complexation-coacervation-adsorption with defluorination adsorption material based on aluminium base composite metal oxide | |
| CN103253725A (en) | A method for removing organic matter in reclaimed water by using in situ generation of iron hydroxyhydroxide In situ FeOxHy | |
| CN101224910B (en) | Three-step combined purifying membrane backwashing method | |
| CN103102026A (en) | Sudden raw water thallium pollution emergency treatment system and method | |
| Sun et al. | Review of fluoride removal technology from wastewater environment | |
| CN103349974B (en) | Spherical hydroxyapatite fluoride-removing material regenerated powder and application thereof | |
| CN103193312B (en) | Device and method for biologically removing cadmium metal in underground water | |
| CN116099489A (en) | Preparation method of iron-magnesium layered double hydroxide dephosphorizing agent | |
| CN115626733A (en) | Method for purification and regeneration of aquaculture wastewater | |
| CN203498191U (en) | Ultrafiltration combination device for removing fluoride ions in groundwater |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |