CN1137855C - Water purifying method by swirl oxidation and flocculation - Google Patents
Water purifying method by swirl oxidation and flocculation Download PDFInfo
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- CN1137855C CN1137855C CNB991246853A CN99124685A CN1137855C CN 1137855 C CN1137855 C CN 1137855C CN B991246853 A CNB991246853 A CN B991246853A CN 99124685 A CN99124685 A CN 99124685A CN 1137855 C CN1137855 C CN 1137855C
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- water
- flocculation
- present
- flocculating
- solid
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 52
- 238000000034 method Methods 0.000 title claims abstract description 33
- 238000005189 flocculation Methods 0.000 title claims abstract description 25
- 230000016615 flocculation Effects 0.000 title claims abstract description 24
- 230000003647 oxidation Effects 0.000 title claims abstract description 18
- 238000007254 oxidation reaction Methods 0.000 title claims abstract description 18
- 239000007788 liquid Substances 0.000 claims abstract description 16
- 239000008394 flocculating agent Substances 0.000 claims abstract description 6
- 239000000203 mixture Substances 0.000 claims description 17
- 238000006243 chemical reaction Methods 0.000 claims description 15
- 239000003795 chemical substances by application Substances 0.000 claims description 12
- 230000003311 flocculating effect Effects 0.000 claims description 12
- 230000001590 oxidative effect Effects 0.000 claims description 11
- 239000007787 solid Substances 0.000 claims description 11
- 239000000701 coagulant Substances 0.000 claims description 10
- 239000002351 wastewater Substances 0.000 claims description 7
- 229920002472 Starch Polymers 0.000 claims description 5
- 229920002401 polyacrylamide Polymers 0.000 claims description 5
- 238000000926 separation method Methods 0.000 claims description 5
- 235000019698 starch Nutrition 0.000 claims description 5
- 239000008107 starch Substances 0.000 claims description 5
- 239000010881 fly ash Substances 0.000 claims description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 3
- 238000005336 cracking Methods 0.000 claims description 3
- 150000003254 radicals Chemical class 0.000 claims description 3
- 230000001954 sterilising effect Effects 0.000 claims description 3
- 238000004659 sterilization and disinfection Methods 0.000 claims description 3
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 claims description 2
- 229910021578 Iron(III) chloride Inorganic materials 0.000 claims description 2
- DIZPMCHEQGEION-UHFFFAOYSA-H aluminium sulfate (anhydrous) Chemical group [Al+3].[Al+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O DIZPMCHEQGEION-UHFFFAOYSA-H 0.000 claims description 2
- 229910001882 dioxygen Inorganic materials 0.000 claims description 2
- RBTARNINKXHZNM-UHFFFAOYSA-K iron trichloride Chemical group Cl[Fe](Cl)Cl RBTARNINKXHZNM-UHFFFAOYSA-K 0.000 claims description 2
- 239000000463 material Substances 0.000 claims description 2
- 235000019353 potassium silicate Nutrition 0.000 claims description 2
- 239000001488 sodium phosphate Chemical group 0.000 claims description 2
- 229910000162 sodium phosphate Inorganic materials 0.000 claims description 2
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical group [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims description 2
- RYFMWSXOAZQYPI-UHFFFAOYSA-K trisodium phosphate Chemical group [Na+].[Na+].[Na+].[O-]P([O-])([O-])=O RYFMWSXOAZQYPI-UHFFFAOYSA-K 0.000 claims description 2
- 239000002244 precipitate Substances 0.000 abstract 2
- 150000001875 compounds Chemical class 0.000 abstract 1
- 239000008213 purified water Substances 0.000 abstract 1
- 239000010802 sludge Substances 0.000 abstract 1
- 239000000126 substance Substances 0.000 abstract 1
- 239000010865 sewage Substances 0.000 description 14
- 238000000746 purification Methods 0.000 description 8
- 230000000694 effects Effects 0.000 description 5
- 238000001556 precipitation Methods 0.000 description 5
- VSCWAEJMTAWNJL-UHFFFAOYSA-K aluminium trichloride Chemical compound Cl[Al](Cl)Cl VSCWAEJMTAWNJL-UHFFFAOYSA-K 0.000 description 4
- 239000004343 Calcium peroxide Substances 0.000 description 3
- LHJQIRIGXXHNLA-UHFFFAOYSA-N calcium peroxide Chemical compound [Ca+2].[O-][O-] LHJQIRIGXXHNLA-UHFFFAOYSA-N 0.000 description 3
- 235000019402 calcium peroxide Nutrition 0.000 description 3
- 238000001514 detection method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- RUTXIHLAWFEWGM-UHFFFAOYSA-H iron(3+) sulfate Chemical compound [Fe+3].[Fe+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O RUTXIHLAWFEWGM-UHFFFAOYSA-H 0.000 description 3
- 229910000360 iron(III) sulfate Inorganic materials 0.000 description 3
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 2
- 229910052801 chlorine Inorganic materials 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 210000001161 mammalian embryo Anatomy 0.000 description 2
- 244000005700 microbiome Species 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 229910052698 phosphorus Inorganic materials 0.000 description 2
- 239000011574 phosphorus Substances 0.000 description 2
- SUKJFIGYRHOWBL-UHFFFAOYSA-N sodium hypochlorite Chemical group [Na+].Cl[O-] SUKJFIGYRHOWBL-UHFFFAOYSA-N 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- -1 aluminium chlorohydroxide Chemical compound 0.000 description 1
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000000796 flavoring agent Substances 0.000 description 1
- 235000019634 flavors Nutrition 0.000 description 1
- 238000005111 flow chemistry technique Methods 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000002594 sorbent Substances 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
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- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
The present invention relates to a water purifying method by swirl oxidation and flocculation, which is characterized in that a compound oxidation flocculating agent is thrown and added into flowing water, the flocculating agent is mixed with the water, and a water body is oxidized and flocculated under a swirl state; purified water and precipitates are obtained by a solid-liquid separator. The present invention causes the water to be oxidized, cracked, flocculated, etc. by substances, such as nascent state free radicals, etc., and also causes a flocculation adsorbing process, a precipitate separating process and a sludge concentrating process to be completed in the same structural body. The present invention has high removing rate for COD, BOD, SS, etc., and the present invention also has the advantages of little investment, little land occupation, low cost, high efficiency, flexible operation and easy popularization. The present invention can be widely used for various water treatment fields.
Description
Technical field
What the present invention relates to is a kind of under waterpower rotation plug-flow state, utilizes oxygenolysis and the network mutual synergistic principle of flocculating to realize the method for purifying waste water.
Background technology
At present, method for purifying water is mainly bio-digestion method and flocculent precipitation both at home and abroad.As USOS1164609, CN1101628A, what put down in writing among the CN1153145 A all is methods of relevant bio-digestion treating water.A plurality of countries have obtained enforcement to bio-digestion method treating water in the world; technology is ripe; BOD and ammonia nitrogen etc. have good result in the removal water; for the protection environment has played active effect; but it is low that bio-digestion method treating water exists the COD clearance, and decolorizing effect is poor, and the investment of founding the factory is big; floor space is big, problems such as processing requirement height.These problems are showing in the actual motion in recent years shrilly.The flocculent precipitation treating water is many local uses of China, flocculation precipitation method, CN1167735A and the CN86108307 patent etc. of publishing as " environmental chemistry " 1997 the 6th phases, its technology and equipment are simpler, less investment, take up an area of for a short time, remove heavy metal, phosphorus, colourity is effective, played certain effect for purifying water, but present flocculation sediment water treatment method exists to problems such as poor removal effect such as microorganism, organonitrogen, foreign odor flavor in the water.So present flocculation precipitation method is used also less in sewage disposal.
Summary of the invention
A kind of water new purification method of providing at above-mentioned bio-digestion method and flocculent precipitation existing problems is provided.
The present invention has changed water treatment method in the past, by combined oxidation flocculation agent and water thorough mixing, produces nascent state free radical, atomic oxygen etc., organism, microorganism in the water is carried out oxidation, cracking, sterilization, flocculation reaction; In equipment for separating liquid from solid, produce the flocculation of contract network shape, absorption, precipitin reaction again, make the quick and water sepn of throw out energy, and obtain high-quality purifying waste water.
Technical scheme of the present invention is to add the combined oxidation flocculation agent earlier to mix rapidly with water in mobile water, makes the reaction of water body generation oxidizing, flocculating; Obtain to purify waste water and throw out through equipment for separating liquid from solid again.
Combined oxidation flocculation agent described in the present invention is made up of A, B two portions, and wherein A consists of more than one one or more elementary composition oxygenants among H, O, Cl, Na, the Ca, as NaOCln (n=1,3,5) or H
2O
2, or Cl
2Or their mixture etc.; B consists of among H, O, Cl, S, Si, Fe, Al, the P one or more elementary composition more than three kinds flocculation agents, as poly-ferric chloride or Tai-Ace S 150 or sodium phosphate or water glass or their mixture etc.Wherein but A and B random order add.
Oxidizing, flocculating of the present invention reaction be meant the combined oxidation flocculation agent with dynamic water thorough mixing in, produce nascent state free radical or materials such as atomic oxygen or molecular oxygen, make water body generation oxidation, cracking, sterilization, flocculation reaction.
Throw out of the present invention can partly return and recycle, and throw out can be made into the mud embryo through dehydration, can be as worker, agricultural raw material.
Equipment for separating liquid from solid of the present invention can be inclined tube-type or equipment for separating liquid from solid such as labyrinth type or Filter film type, throw out can with the water high efficiency separation.
Oxicracking in the inventive method, network flocculation, solid-liquid separation and mud concentration response occur in same constructing in the body.It takes up an area of less, investment is little, and cost is low, efficient height, flexible operation.
Purifying method of the present invention is can be according to influent quality different or to the different requirements of effluent quality, by adjusting the dosage of combined oxidation flocculation agent, adapts to the different requirements of various effluent qualities.
The said oxidizing, flocculating reaction of the present invention can be by adding coagulant aids C, as polyacrylamide or derivatives thereof or treated starch or diatomite or flyash or their mixture etc., to improve the deposition efficiency of throw out in the solid-liquid separation process.
Above-mentioned explanation confirms, the present invention is the method for purifying water that a kind of and water treatment method in the past have fundamental difference, and it has, and efficient height, less investment, cost are low, instant effect, easy advantage such as popularization.
Following example is that the inventive method specifies, but the inventive method scope of application is not limited to following example.
Description of drawings
Fig. 1 is a kind of schema of the inventive method.
Press flow process shown in Figure 1: sewage drives through machinery 1, the combined oxidation flocculating agent A and the rapid thorough mixing of B that add by dosing mouth 2 (dosing mouth 2 can before or after machinery 1), and add coagulant aids C again at dosing mouth 4, make it to mix with water body, water body enters reaction unit 3, under rotation plug-flow state oxicracking takes place, the adsorption-flocculation reaction.And after installing 5 solid-liquid separation, obtain to purify waste water.Simultaneously, the throw out that obtains can partly return dosing mouth 2 respectively and recycles in oxidizing, flocculating reaction unit 3 and equipment for separating liquid from solid 5, or make throw out become the mud embryo by dewatering unit 6, as the industrial or agricultural starting material, add dose etc. in the above-mentioned flow system and all can finish by microcomputer ZPCl control.
Embodiment
Embodiment 1. adopts above-mentioned diagram flow processing city domestic sewage.Relevant water quality detection index before and after purifying is as shown in table 1: treatment scale is per hour 1 ton, add the combined oxidation flocculation agent of forming by A and B, wherein the A component is clorox or calcium peroxide or its mixture, the B component is bodied ferric sulfate or aluminium chlorohydroxide or its mixture, A and B ratio are 1: 20, drop into 0.1～1 kilogram of combined oxidation flocculation agent ratio in sewage per ton, join in the sewage continuously, carry out the oxidizing, flocculating reaction, with coagulant aids C such as polyacrylamide or derivatives thereof, or treated starch, or diatomite, or flyash or their mixture, drop into the ratio of 0～0.5 gram coagulant aids C in sewage per ton, mix with water body continuously, and after water body sent into equipment for separating liquid from solid such as inclined tube-type or labyrinth type settling tank, obtain to purify waste water.
Table 1
| Example 1 (municipal effluent) | Example 2 (percolate) | Example 3 (Zhujiang River river) | ||||
| Before the purification | After the purification | Before the purification | After the purification | Before the purification | After the purification | |
| CODcr(mg/L) | 350±90 | 50±10 | 3000±350 | 95±15 | 100±25 | 25±15 |
| BOD5(mg/L) | 220±80 | 15±5 | 950±100 | 50±5 | 60±20 | 10±5 |
| SS(mg/L) | 300±110 | 14±6 | 500±100 | 25±10 | 90±30 | 10±3 |
| Total phosphorus (mg/L) | 3.2±2.0 | 0.8±0.2 | 8.0±3.0 | 1.0±0.3 | 0.8±0.2 | 0.5±0.2 |
| Grease (mg/L) | 12.5±5.0 | 6.7±3.1 | 15±10 | 7.5±2.9 | 5.0±2.0 | 3.0±1.0 |
| Colourity (dilution doubly) | 80±25 | 3±1 | 250±50 | 8±2 | 11±5 | 3±1 |
| pH | 6.8±0.5 | 6.9±0.8 | 8.0±1.5 | 7.5±1.5 | 6.9±0.5 | 6.9±0.8 |
Claims (5)
1. the method for purifying water of an eddy flow attitude oxidizing, flocculating is characterized in that in mobile water, adds oxygenant A and flocculating agent B and mixes with water, and make water body under rotation plug-flow state the oxidizing, flocculating reaction take place; Obtain to purify waste water and throw out by equipment for separating liquid from solid again; Said oxygenant A is NaOCln, H
2O
2, Cl
2Or their mixture, n=1 wherein, 3,5; Flocculating agent B is poly-ferric chloride, Tai-Ace S 150, sodium phosphate, water glass or their mixture.
2. according to the described method for purifying water of claim 1, it is characterized in that its oxicracking, network flocculation, solid-liquid separation, mud concentration response finish same constructing in the body.
3. according to claim 1 or 2 described method for purifying water, it is characterized in that said oxidizing, flocculating reaction, after being meant oxygenant and flocculation agent and water mixing, in water body, produce one or more materials in nascent state free radical or atomic oxygen or the molecular oxygen, and oxidation, cracking, sterilization, flocculation reaction take place.
4. according to claim 1 or 2 described method for purifying water, it is characterized in that said equipment for separating liquid from solid is inclined tube-type or labyrinth type or Filter film type equipment for separating liquid from solid.
5. according to claim 1 or 2 described method for purifying water, it is characterized in that when adding oxygenant A and flocculating agent B, adding coagulant aids C; Said coagulant aids C is polyacrylamide or derivatives thereof or treated starch or diatomite or flyash, or their mixture.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB991246853A CN1137855C (en) | 1999-12-30 | 1999-12-30 | Water purifying method by swirl oxidation and flocculation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB991246853A CN1137855C (en) | 1999-12-30 | 1999-12-30 | Water purifying method by swirl oxidation and flocculation |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1301669A CN1301669A (en) | 2001-07-04 |
| CN1137855C true CN1137855C (en) | 2004-02-11 |
Family
ID=5283558
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB991246853A Expired - Fee Related CN1137855C (en) | 1999-12-30 | 1999-12-30 | Water purifying method by swirl oxidation and flocculation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1137855C (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103626276B (en) * | 2013-12-12 | 2016-08-17 | 浙江一清环保工程有限公司 | The composite dephosphorizing agent of a kind of phosphorus-containing wastewater and application process thereof |
| CN103626273B (en) * | 2013-12-16 | 2015-04-08 | 西安建筑科技大学 | Nucleation coagulation method of low-concentration organic matters |
| CN103896380B (en) * | 2014-04-01 | 2015-09-16 | 安庆丰源化工有限公司 | A kind of Fine Chemistry Wastewater treatment agent of efficient removal ammonia nitrogen |
| CN103922449B (en) * | 2014-04-04 | 2015-08-26 | 张爱均 | A kind of high-efficiency environment friendly flocculation agent administered for black smelly river |
| CN108862544A (en) * | 2018-06-27 | 2018-11-23 | 宁夏宝塔化工中心实验室(有限公司) | A kind of sewage treatment composite oxidant and preparation method thereof |
| CN109052595A (en) * | 2018-08-20 | 2018-12-21 | 上海优帛环境技术有限公司 | A kind of compound coagulant quickly handled for quenching waste water and its application method |
-
1999
- 1999-12-30 CN CNB991246853A patent/CN1137855C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1301669A (en) | 2001-07-04 |
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