CN1318316C - Process and device for purifying chemical toxic agent polluted water - Google Patents
Process and device for purifying chemical toxic agent polluted water Download PDFInfo
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- CN1318316C CN1318316C CNB2004100428025A CN200410042802A CN1318316C CN 1318316 C CN1318316 C CN 1318316C CN B2004100428025 A CNB2004100428025 A CN B2004100428025A CN 200410042802 A CN200410042802 A CN 200410042802A CN 1318316 C CN1318316 C CN 1318316C
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Abstract
The present invention relates to a method for purifying water polluted by toxic chemical agents. A disinfecting liquid with active chlorine concentration of 20 to 60 mg/L is firstly added to polluted water, and the water is purified by a nanofiltration purifier after 10 to 30 min contact action. In the present invention, the disinfecting liquid and the polluted water firstly take part in chemical reaction, active carbon secondly filters and absorbs a part of low-molecular radioactive substances in the water, and a nanofiltration membrane in chloride ion damage membrane separation processes is baffled; a nanofiltration element is finally used for filtering solute particles with diameters of about 10<-9>m, the catching molecular weight is from 100 to 1000, so most inorganic salt, amino acid, BOD, COD, bacteria, virus and a part of salt in the water can be removed, and therefore, the water is purified. Via detection indication, the contents of remnant toxic agents of HD, GB and VX in the purified water are respectively less than 0.5 mg/L, 2*10<-4> mg/L and 5*10<-4> mg/L, and are superior to the requirements of relevant drinking water indexes.
Description
Technical field
The present invention relates to a kind of toxic chemical agent and pollute water purification method, particularly a kind of by toxic chemical agent HD (yperite), GB (sarin gas) and VX (VX poison gas) pollution water purification method, and the employed refining plant of this method.
Background technology
Existing purification is generally adopted chemical disinfection by the method for the water of toxic chemical agent HD, GB and VX pollution, and its shortcoming is to contain a large amount of chlorine residue after the sterilization, and unable to drink is used.
Summary of the invention
Purpose of the present invention just provides a kind of toxic chemical agent and pollutes water purification method and device, to contain a large amount of chlorine residue and impotable problem after the sterilization that exists that solves prior art.
Technical scheme of the present invention is: at first drop into thimerosal in polluted water, the concentration that this thimerosal contains reactive chlorine is respectively 20～40mg/L, 40～60mg/L and 30～50mg/L, after 10～30 minutes contact action, purify through the nanofiltration refining plant again.Contained toxic chemical agent is respectively HD, GB and VX in the described polluted water, and its maximum concentration value is respectively 60,30 and 30mg/L.
The concentration that described thimerosal contains reactive chlorine is preferably 30mg/L, 50mg/L and 40mg/L respectively, and the contact action time is preferably 18 minutes.
Described nanofiltration refining plant comprises placed in-line successively water pump, accurate filter, activated charcoal filter and nanofiltration element.
The present invention at first utilizes thimerosal and polluted water to carry out chemical reaction, again by the low molecule radioactive substance of part in the activated carbon filtration planar water, stops that chlorion damages the nanofiltration membrane in the membrane sepn process, utilizes nanofiltration element filtering diameter to be about 10 at last
-9The solute particle of m, molecular weight cut-off are 100～1000, can remove most inorganic salt in the water, amino acid, BOD, COD, bacterium, virus and part salt, thereby reach the purpose of purification.Show that after testing remaining toxic agent content is respectively HD＜0.5mg/L, GB＜2 * 10 in the water purification after the present invention purifies
-4Mg/L, VX＜5 * 10
-4Mg/L all is better than the index request of relevant tap water.
The invention will be further described below in conjunction with embodiment.
Embodiment
Embodiment:
1, the test method that adopted in following embodiment of the present invention is:
In a container, inject the 10L tap water, constantly splashing into a kind of toxic agent of testing usefulness under the agitation condition, be made into the contamination water of index regulation, the sterilization liquid measure adopt three close two solution (three parts Losantin and two parts sodium hydroxide) according to drop in the different sorts toxic agent contamination water optimization Test result of reactive chlorine and recorded the same day three close the volume that two solution effective chlorine densities converse and count input.The toxic agent concentration and the corresponding input amount of thimerosal of every kind of contamination water regulation see Table 1.
Table 1: contamination water compound concentration and sterilizing agent input amount
| The toxic agent code name | HD | GB | VX |
| Contamination water compound concentration (mg/L) | 60 | 30 | 30 |
| Throw chlorine starting point concentration (mg/L) | 30 | 50 | 140 |
| Three close two aqueous solution available chlorine measures concentration (mg/ml) | 62.5 | 146.2 | 132.3 |
| Drop into thimerosal volume (ml) in the 10L water | 4.8 | 3.4 | 10.6 |
According to the flow (20L/h) of nanofiltration device, the preparation in per 30 minutes of contamination water is once carried out cleaning test after dropping into thimerosal and contacting 18min again.Change into after every kind of toxic agent off-test and do not change other material when another kind of toxic agent is tested.Adopt the water sample (water purification and dense water) after throwing the water sample behind the chlorine 18min and crossing nanofiltration membrane in per 2 hours, measure residual poison concentration in the water, chlorine residue and pH value respectively.
The mensuration of water intoxication agent concentration, chlorine residue is seen analytical procedure, pH value pHS-T3 acidometer direct reading.
2, analytical procedure:
(1) three closes two aqueous solution reactive chlorine mensuration sees the GB5750-85A.5.1 iodimetry,iodometry.
(2) 37.1 o-tolidine colorimetric methods among the GB5750-85 are seen in chlorine residual measurement in the water, and the minimal detectable concentration of chlorine residue is 0.01mg/L.
(3) GB, VX assay in the water: minimal detectable concentration is respectively: GB:2 * 10
-4Mg/L; VX:5 * 10
-4Mg/L.
(4) HD assay in the water: minimal detectable concentration is 0.5mg/L.
3, test result:
(1) HD purifies 30 hours water sample test results:
HD purifies 30 hours (600L) water sample test results (per 2 hours carry out analytical test) and sees Table 2.
Water sample analysis test result before and after table 2:HD purifies
| Contamination water | HD：60mg/L | Active chlorine concentrations | C1：30mg/L | ||||||||
| Remove the pH value, HD concentration (representing with OB), chlorine residue all are unit with mg/L | |||||||||||
| Add three close two before | Add three close two the reaction 18min after | After nanofiltration membrane | |||||||||
| Dense water | Water purification | ||||||||||
| OB | OB | Chlorine residue | OB | Chlorine residue | pH | OB | Chlorine residue | pH | |||
| 11.77 | 3.95 | 9 | ＜0.5 * | ＜0.01 * | 8.18 | ＜0.5 | ＜0.01 | 7.24 | |||
| 8.64 | 3.42 | 10 | ＜0.5 | ＜0.01 | 8.94 | ＜0.5 | ＜0.01 | 7.15 | |||
| / | 4.17 | 9 | ＜0.5 | ＜0.01 | 8.63 | ＜0.5 | ＜0.01 | 7.32 | |||
| / | 1.71 | 8 | ＜0.5 | ＜0.01 | 8.43 | ＜0.5 | ＜0.01 | 6.89 | |||
| / | 1.07 | 10 | ＜0.5 | ＜0.01 | 8.28 | ＜0.5 | ＜0.01 | 6.80 | |||
| / | 1.82 | 8 | ＜0.5 | ＜0.01 | 8.15 | ＜0.5 | ＜0.01 | 6.36 | |||
| / | 0.96 | 9 | ＜0.5 | ＜0.01 | 8.11 | ＜0.5 | ＜0.01 | 6.79 | |||
| 15.46 | 1.97 | 9.5 | ＜0.5 | ＜0.01 | 8.05 | ＜0.5 | ＜0.01 | 6.28 | |||
| / | 1.32 | 7 | ＜0.5 | ＜0.01 | 7.74 | ＜0.5 | ＜0.01 | 6.03 | |||
| / | 5.48 | 8.5 | ＜0.5 | ＜0.01 | 7.86 | ＜0.5 | ＜0.01 | 5.90 | |||
| / | 1.45 | 9 | ＜0.5 | ＜0.01 | 7.89 | ＜0.5 | ＜0.01 | 5.86 | |||
| / | 1.68 | 10 | ＜0.5 | ＜0.01 | 7.66 | ＜0.5 | ＜0.01 | 5.75 | |||
| / | 2.14 | 7.5 | ＜0.5 | ＜0.01 | 7.45 | ＜0.5 | ＜0.01 | 5.75 | |||
| 11.52 | 1.54 | 8.5 | ＜0.5 | ＜0.01 | 7.52 | ＜0.5 | ＜0.01 | 5.68 | |||
| / | 1.75 | 8 | ＜0.5 | ＜0.01 | 7.26 | ＜0.5 | ＜0.01 | 5.61 | |||
| Annotate: *Be minimal detectable concentration | |||||||||||
(2) GB purifies 30 hours water sample test results:
GB purifies 30 hours (600 premium on currency) water sample test results (per 2 hours carry out analytical test) and sees Table 3.
Water sample analysis test result before and after table 3:GD purifies
| Contamination water | GB：60mg/L | Active chlorine concentrations | C1：50mg/L | ||||||||
| Remove the pH value, GB concentration (representing with OB), chlorine residue all are unit with mg/L | |||||||||||
| Add three close two before | Add three close two the reaction 18min after | After nanofiltration membrane | |||||||||
| Dense water | Water purification | ||||||||||
| OB | OB | Chlorine residue | OB (×10 -4) | Chlorine residue | pH | OB (×10 -4) | Chlorine residue | pH | |||
| 23.5 | 0.32 | 40 | ＜2 | ＜0.01 * | 6.60 | ＜2 | ＜0.01 | 5.67 | |||
| / | / | 35 | ＜2 | ＜0.01 | 7.31 | ＜2 | ＜0.01 | 5.64 | |||
| / | / | 45 | 3,45 | ＜0.01 | 7.55 | ＜2 | ＜0.01 | 5.64 | |||
| / | / | 35 | 5.72 | ＜0.01 | 7.76 | ＜2 | ＜0.01 | 5.73 | |||
| / | / | 40 | 7.54 | ＜0.01 | 7.55 | ＜2 | ＜0.01 | 5.64 | |||
| / | / | 40 | 9.36 | ＜0,01 | 7.63 | ＜2 | ＜0.01 | 5.70 | |||
| 26.3 | 0.84 | 45 | 13.1 | ＜0.01 | 7.59 | ＜2 | ＜0.01 | 5,67 | |||
| / | / | 35 | 15.2 | ＜0.01 | 7.73 | ＜2 | ＜0.01 | 5.72 | |||
| / | / | 40 | 17.6 | ＜0.01 | 7.74 | ＜2 | ＜0.01 | 5.68 | |||
| / | / | 40 | 19.8 | ＜0.01 | 7.55 | ＜2 | ＜0.01 | 5.64 | |||
| / | / | 45 | 22.4 | ＜0.01 | 7.36 | ＜2 | ＜0.01 | 5.72 | |||
| / | / | 45 | 27.6 | ＜0.01 | 7.63 | ＜2 | ＜0.01 | 5.63 | |||
| / | / | 35 | 36.3 | ＜0.01 | 7.49 | ＜2 | ＜0.01 | 5.65 | |||
| 25.6 | 0.26 | 40 | 52.6 | ＜0.01 | 7.73 | ＜2 | ＜0.01 | 5.68 | |||
| / | / | 45 | 86.4 | ＜0.01 | 7.56 | ＜2 | ＜0.01 | 5.61 | |||
| Annotate: *Be minimal detectable concentration | |||||||||||
(3) VX purifies 30 hours water sample test results:
VX purifies 30 hours (600L) water sample test results (per 2 hours carry out analytical test) and sees Table 4.
Water sample analysis test result before and after table 4:VX purifies
| Contamination water | GB：60mg/L | Active chlorine concentrations | C1：50mg/L | |||||
| Remove the pH value, GB concentration (representing with OB), chlorine residue all are unit with mg/L | ||||||||
| Add three close two the reaction 18min after | After nanofiltration membrane | |||||||
| Dense water | Water purification | |||||||
| OB | Chlorine residue | OB (×10 -4) | Chlorine residue | pH | OB (×10 -4) | Chlorine residue | PH | |
| 0.21 | ＞100 | ＜5 | ＜0.01 * | 7.67 | ＜5 | ＜0.01 | 5.66 | |
| / | ＞100 | ＜5 | ＜0.01 | 7.94 | ＜5 | ＜0.01 | 5.79 | |
| / | ＞100 | 5.93 | ＜0.01 | 7.47 | ＜5 | ＜0.01 | 5.63 | |
| / | ＞100 | 5,72 | ＜0.01 | 7. be | ＜5 | ＜0.01 | 5.72 | |
| / | ＞100 | 11.3 | ＜0.01 | 7.64 | ＜5 | ＜0.01 | 5.92 | |
| / | ＞100 | 9.96 | ＜0.01 | 7.46 | ＜5 | ＜0.01 | 5.88 | |
| 0.17 | ＞100 | 10.3 | ＜0.01 | 7.64 | ＜5 | ＜0.01 | 5.67 | |
| / | ＞100 | 11.2 | ＜0.01 | 7.50 | ＜5 | ＜0.01 | 5.80 | |
| / | ＞100 | 13.0 | ＜0,01 | 7.83 | ＜5 | ＜0.01 | 5.80 | |
| / | ＞100 | 14.1 | ＜0.01 | 7.51 | ＜5 | ＜0.01 | 5.79 | |
| / | ＞100 | 17.2 | ＜0,01 | 7.56 | ＜5 | ＜0.01 | 5.72 | |
| / | ＞100 | 18.7 | ＜0.01 | 7.63 | ＜5 | ＜0.01 | 5.68 | |
| / | ＞100 | 21.7 | ＜0.01 | 7.70 | ＜5 | ＜0.01 | 5.75 | |
| 0.18 | ＞100 | 23.6 | ＜0.01 | 7.78 | ＜5 | ＜0.01 | 5.60 | |
| / | ＞100 | 24.1 | ＜0.01 | 7.50 | ＜5 | ＜0.01 | 5.62 | |
| Annotate: *Be minimal detectable concentration | ||||||||
4, conclusion:
From table 2～table 4, can draw three kinds of contamination water and all be lower than the index value of limiting the quantity of through water purification analytical results behind 30 hours cleaning tests respectively, see Table 5.Thereby obtain this nanofiltration drinking device toxic agent (HD, GB, VX) polluted water is purified 90 hours, water purification water quality all can satisfy the requirement of tap water.
Showing 5:90 hour water purification test result estimates
| The toxic agent code name | Clarification time | Estimate | Project | ||
| OB | PH | ||||
| Index | Measured value | Index | Measured value | ||
| HD | 30 | 1.5 | 0.5 | 5-9 | 5.6-7.3 |
| VX | 30 | 0.01 | 0.0005 | 5-9 | 5.6-7.3 |
| lib | 30 | 0.07 | 0.0002 | 5-9 | 5.6-5.9 |
Claims (3)
1, a kind of toxic chemical agent pollutes water purification method, contained toxic chemical agent is respectively yperite, sarin gas and VX poison gas in this polluted water, its maximum concentration value is respectively 60,30 and 30mg/L, it is characterized in that: at first in polluted water, drop into thimerosal, the concentration that this thimerosal contains reactive chlorine is respectively 20～40mg/L, 40～60mg/L and 30～50mg/L, after 10～30 minutes contact action, purify through the nanofiltration refining plant again.
2, toxic chemical agent according to claim 1 pollutes water purification method, and it is characterized in that: the concentration that described thimerosal contains reactive chlorine is respectively 30mg/L, 50mg/L and 40mg/L, and the contact action time is 18 minutes.
3, toxic chemical agent according to claim 1 and 2 pollutes water purification method, and it is characterized in that: described nanofiltration refining plant comprises placed in-line successively water pump, accurate filter, activated charcoal filter and nanofiltration element.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100428025A CN1318316C (en) | 2004-05-26 | 2004-05-26 | Process and device for purifying chemical toxic agent polluted water |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100428025A CN1318316C (en) | 2004-05-26 | 2004-05-26 | Process and device for purifying chemical toxic agent polluted water |
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|---|---|
| CN1704352A CN1704352A (en) | 2005-12-07 |
| CN1318316C true CN1318316C (en) | 2007-05-30 |
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| CNB2004100428025A Expired - Fee Related CN1318316C (en) | 2004-05-26 | 2004-05-26 | Process and device for purifying chemical toxic agent polluted water |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1202876A (en) * | 1995-10-19 | 1998-12-23 | 弗德克工业股份有限公司 | Method for pretreating raw water |
| WO2003091164A1 (en) * | 2002-04-26 | 2003-11-06 | Va Tech Wabag Gmbh | Method and device for purifying drinking water using a chlorine-resistant nanofiltration membrane |
-
2004
- 2004-05-26 CN CNB2004100428025A patent/CN1318316C/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1202876A (en) * | 1995-10-19 | 1998-12-23 | 弗德克工业股份有限公司 | Method for pretreating raw water |
| WO2003091164A1 (en) * | 2002-04-26 | 2003-11-06 | Va Tech Wabag Gmbh | Method and device for purifying drinking water using a chlorine-resistant nanofiltration membrane |
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| Publication number | Publication date |
|---|---|
| CN1704352A (en) | 2005-12-07 |
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Granted publication date: 20070530 Termination date: 20180526 |