CN101905920B - Method for performing emergency treatment of water with excessive iron and manganese by using diversion channel - Google Patents
Method for performing emergency treatment of water with excessive iron and manganese by using diversion channel Download PDFInfo
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- CN101905920B CN101905920B CN2010102461733A CN201010246173A CN101905920B CN 101905920 B CN101905920 B CN 101905920B CN 2010102461733 A CN2010102461733 A CN 2010102461733A CN 201010246173 A CN201010246173 A CN 201010246173A CN 101905920 B CN101905920 B CN 101905920B
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 52
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 title claims abstract description 49
- 229910052742 iron Inorganic materials 0.000 title claims abstract description 25
- 238000000034 method Methods 0.000 title claims abstract description 18
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 title abstract description 16
- 229910052748 manganese Inorganic materials 0.000 title abstract description 16
- 239000011572 manganese Substances 0.000 title abstract description 16
- 238000003756 stirring Methods 0.000 claims abstract description 11
- 239000000701 coagulant Substances 0.000 claims abstract description 9
- 238000011144 upstream manufacturing Methods 0.000 claims abstract description 6
- 239000010802 sludge Substances 0.000 claims abstract description 5
- 238000005189 flocculation Methods 0.000 claims description 16
- 230000016615 flocculation Effects 0.000 claims description 16
- 241000209094 Oryza Species 0.000 claims description 14
- 235000007164 Oryza sativa Nutrition 0.000 claims description 14
- 235000009566 rice Nutrition 0.000 claims description 14
- 239000003795 chemical substances by application Substances 0.000 claims description 11
- 150000002500 ions Chemical class 0.000 claims description 10
- 229910001385 heavy metal Inorganic materials 0.000 claims description 9
- 238000009412 basement excavation Methods 0.000 claims description 8
- 239000003814 drug Substances 0.000 claims description 8
- 238000012545 processing Methods 0.000 claims description 7
- 238000010561 standard procedure Methods 0.000 claims description 6
- 239000004575 stone Substances 0.000 claims description 5
- 238000006243 chemical reaction Methods 0.000 claims description 4
- 239000002352 surface water Substances 0.000 claims description 4
- 239000011449 brick Substances 0.000 claims description 3
- 230000018044 dehydration Effects 0.000 claims description 3
- 238000006297 dehydration reaction Methods 0.000 claims description 3
- 238000011049 filling Methods 0.000 claims description 3
- 210000000476 body water Anatomy 0.000 claims description 2
- 230000001112 coagulating effect Effects 0.000 claims description 2
- 235000021050 feed intake Nutrition 0.000 claims description 2
- 238000004062 sedimentation Methods 0.000 claims description 2
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 claims 1
- 238000003911 water pollution Methods 0.000 abstract description 4
- 229910001437 manganese ion Inorganic materials 0.000 abstract description 3
- 239000013049 sediment Substances 0.000 abstract description 3
- 230000015271 coagulation Effects 0.000 abstract 1
- 238000005345 coagulation Methods 0.000 abstract 1
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 9
- 238000011109 contamination Methods 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 235000011121 sodium hydroxide Nutrition 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 238000009388 chemical precipitation Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 238000003672 processing method Methods 0.000 description 2
- WAEMQWOKJMHJLA-UHFFFAOYSA-N Manganese(2+) Chemical compound [Mn+2] WAEMQWOKJMHJLA-UHFFFAOYSA-N 0.000 description 1
- 229910052785 arsenic Inorganic materials 0.000 description 1
- RQNWIZPPADIBDY-UHFFFAOYSA-N arsenic atom Chemical compound [As] RQNWIZPPADIBDY-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000003610 charcoal Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 239000003651 drinking water Substances 0.000 description 1
- 235000020188 drinking water Nutrition 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- -1 iron ion Chemical class 0.000 description 1
- 238000011068 loading method Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005374 membrane filtration Methods 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 239000012716 precipitator Substances 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000001223 reverse osmosis Methods 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000008399 tap water Substances 0.000 description 1
- 235000020679 tap water Nutrition 0.000 description 1
- PICXIOQBANWBIZ-UHFFFAOYSA-N zinc;1-oxidopyridine-2-thione Chemical class [Zn+2].[O-]N1C=CC=CC1=S.[O-]N1C=CC=CC1=S PICXIOQBANWBIZ-UHFFFAOYSA-N 0.000 description 1
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- Separation Of Suspended Particles By Flocculating Agents (AREA)
- Removal Of Specific Substances (AREA)
Abstract
The invention discloses a method for performing emergency treatment of water with excessive iron and manganese by using a diversion channel and belongs to the field of water pollution control. In the method, a cutoff dam is built on a polluted riverway to cut off polluted water, a diversion channel is dug at both the upstream and the downstream of the cutoff dam, the water level difference between the two diversion channels generates quick water flow for performing effective hydraulic stirring of a coagulant, and thus, the river water and the coagulant are fully mixed, the iron and manganese ions in the river water form flocculate sediment together with the coagulant and the river water is purified; meanwhile, an overflow dam is built in a downstream riverway of the dam, the flocculate sediment is stopped by the overflow dam, and after the water is processed and reach standards, the sludge is dug out, centrifuged for dewatering and treated safely. The method can remove iron and manganese ions from water quickly and efficiently make sludge formed by coagulation stopped effectively by the overflow dam and safely treated. Tests show that the method has desirable mine iron and manganese pollution emergency treatment.
Description
Technical field
The present invention relates to iron in the river course, the mn ion water body emergency processing method that exceeds standard, belong to the surface water process field.Particularly; On polluted river channel, build cut off dam and cut off contaminated water body, and, add flocculation agent at the cut off dam upper reaches and diversion canal of downstream excavation; The stream that sluices down fast that adopts diversion canal upstream and downstream waterhead to produce carries out waterpower and stirs; Reach flocculation and remove the effect of heavy iron, mn ion, the body refuse that flocculation produces is tackled with overfall dike, and carries out safe disposal.
Background technology
Owing to industrial fast development, the sudden water pollution incident occurred repeatedly in recent years.In February, 2010, the gushing water accident takes place in ore deposit, flag mountain, Xuzhou, after the outer draining of mine that contains high density iron ion, mn ion gets into the river course, causes that iron concentration rises to 300mg/L in the river, manganese ion concentration rises to 30mg/L, head and shoulders above the surface water quality standard.Above-mentioned heavy metal contamination incident not only causes grave danger to tap water seedbed safety control, directly influences the peripheral masses' life, production.
The conventional method of removing heavy metal ion in the water body has absorption method, membrane filtration and chemical precipitation method (the emergency handling process research of the former water of arsenic contamination, Chinese water supply and drainage, 2007,23 (21): 15-23.).Yet in actual burst water pollution incident disposal process; Because contaminated streamflow amount is big, circumstance complication; Aforesaid method is difficult to implement in operating process: (1) gac is very low to the s-adsorption of heavy metal; Natural organic matter can form the charcoal absorption heavy metal and disturb in the river, and is difficult to gac is spilled into river course and recovery at short notice uniformly; (2) facility investment of reverse osmosis method and running cost are high, and treatment capacity is limited, are only applicable to small-scale drinking water emergency and supply with, and are difficult to be applied to the purification of a large amount of water bodys in the river course; (3) chemical precipitation method is simple to operate, and running cost is low, yet in the river course, still is the difficult point that the applied chemistry precipitator method are disposed river course water pollution with river mixed precipitation with coagulating agent fully how.
Summary of the invention
The purpose of this invention is to provide a kind of exceed standard method of water body of diversion canal emergency processing iron, manganese of utilizing; Promptly cut off the water body that pollutes through building cut off dam; And at the cut off dam upper reaches and diversion canal of downstream excavation; Inlet adds flocculation agent at the diversion channel upper reaches, in diversion canal, produces quick current through waterhead coagulating agent is carried out effective waterpower stirring, and make full use of diversion canal as the hybrid reaction district; Flocculation sediment is removed iron, manganese heavy metal ion in the river, and formed mud carries out safe disposal after with the overfall dike intercepting.
Technical scheme of the present invention is following: a kind of diversion canal that utilizes is the exceed standard emergency processing method of water body of iron, the manganese in hybrid reaction district; It is made up of the following step basically: a kind of exceed standard method of water body of diversion canal emergency processing iron, manganese of utilizing; It is made up of the following step: step 1. is built earth dam: according to national surface water quality standard; Polluted river channel is monitored, and 1 kilometer place, section downstream builds the earth dam that dams in pollution; Step 2. excavation diversion canal: be communicated with 20 meters, dam body downstream at the upper reaches apart from dam body 20-50 rice excavation diversion canal, the wide 2.0-3.0 rice of diversion canal, upper reaches water inlet and downstream water outlet drop is greater than 1.5 meters, and uses brick bank protection; Step 3. is set up, the diversion canal mechanical loading; Step 4. is built overfall dike: at the dam body downstream river course 3-5 kilometer place of damming, squeeze into behind the timber and build overfall dike one with gunnysack filling stone, highly be lower than river course water surface 0.5-1.0 rice, dam body is suitably reinforced with timber or steelframe; Step 5. adds flocculation agent: the water-in through the pipeline guide lumen canal that feeds intake adds flocculation agent, makes the fully reaction in diversion canal of heavy metal ion and coagulating agent, realizes coagulating sedimentation, and the dosage of medicament is advisable to guarantee pH value＞7.5 of mixing the back river; Step 6. sludge disposal: after river disposes, the body refuse that overfall dike dams is removed, disposed after the dehydration with dredger.
The dam slope top width 6-8 rice that dams in the step 1 wherein, dam body water levels of upstream and downstream difference reaches 1.0-1.5 rice.The belt conveyer of pipeline for setting up at the water inlet place that feed intake in the step 3, discharge port is 2.5-3.0 rice apart from the diversion canal bottom.
Overfall dike height in the step 4 is lower than water surface 0.5-1.0 rice, is to load stone with gunnysack to build up; Stirring that the waterpower that quick water outlet through diversion canal behind the adding flocculation agent in the step 5 forms stirs and local return is flocculated.Above-mentioned width and altitude range are only represented comparatively suitable scope, and do not mean that the very qualification of strictness.
The invention provides a kind of exceed standard method of water body of diversion canal emergency processing iron, manganese of utilizing; Cut off the water body that pollutes through building cut off dam; And at the cut off dam upper reaches and diversion canal of downstream excavation; Inlet adds flocculation agent at the diversion channel upper reaches, in diversion canal, produces quick current through waterhead coagulating agent is carried out effective waterpower stirring, can fast, efficiently remove iron in the water, mn ion; And flocculation agent stirs diffusion and relies on the quick current of the cut off dam upper reaches, the formation of tail water potential difference in diversion canal, to carry out the waterpower stirring; And thorough mixing reacts iron, mn ion in the flocculation removal water, safe disposal after the body refuse that flocculation forms can effectively be dammed by overfall dike.Through overtesting, effect is better on the emergency disposal of mine iron, pollution by manganese.
Description of drawings
Fig. 1 utilizes the exceed standard method synoptic diagram of water body of diversion canal emergency processing iron, manganese for the present invention, and wherein 1 is cut off dam, and 2 is polluted-water.3 is bank protection, and 4 are the pipeline that feeds intake, and 5 is diversion canal, and 6 is the water body after diversion canal is handled, and 7 is overfall dike.
Embodiment
Below administer experiment through iron, pollution by manganese and further specify this patent.Concentration of iron exceed standard in the river in the following instance greater than 100mg/L, and manganese concentration is greater than 20mg/L, pH=6.2.
Embodiment 1: the pollution zone is confirmed in (1), builds cut off dam at the intersection of removing contamination, polluted-water 2 is dammed, and 6 meters of cut off dam 1 sloping top widths, long 250 meters of dam body, the water levels of upstream and downstream difference reaches 1.2 meters; (2) excavation diversion canal 5: excavate diversion canal at the upper reaches apart from 50 meters of dam body and be communicated with 20 meters, dam body downstream, diversion canal is wide 3.0 meters, 1.8 meters of the horizontal drops of upper reaches water inlet and downstream water outlet, and ingress, the upper reaches is with brick bank protection 3; (3) set up the pipeline 4 that feeds intake: the water inlet place sets up belt conveyer at the diversion canal upper reaches, 3.0 meters apart from the diversion canal bottom of forwarder discharge ports; (4) build overfall dike 7: at sluice/3 kilometers places of dam body downstream river course, squeeze into behind the timber and build overfall dike one with gunnysack filling stone, highly be lower than 0.5 meter of the river course water surface, dam body is suitably reinforced with timber; (5) add flocculation agent:, add Ca (OH) in conjunction with diversion canal/sluice water flow according to the practical situation that exceed standard of heavy metal content in the river of the upper reaches
2, the water yield weight ratio of medicament and processing is about 1: 5000, when promptly flow is 1 cube of meter per second; Added amount of chemical is 1.2 a kilograms/PM; The quick current that utilize the water levels of upstream and downstream difference to form carry out waterpower to medicament and stir, and heavy metal ion and coagulating agent are fully reacted in downstream river course, and 1 kilometer in downstream locate that concentration of iron is 0.48mg/L in the river; Manganese concentration is 0.09mg/L, and the pH value is 8.8; (6) sludge disposal: after river disposes, the body refuse that overfall dike dams is removed, carried out safe disposal after the dehydration with dredger.
Embodiment 2: basic step is with embodiment 1, but changes the medicament in the step 5 into Ca (OH)
2With weight percent concentration be 40% liquid caustic soda, Ca (OH)
2Dosage is 0.1 kilogram of medicament/cube river, and the liquid caustic soda dosage is 0.5 liter of liquid caustic soda/cube river, and other operational condition is constant, and the 1 kilometer concentration of iron located in the river in downstream is reduced to 0.128mg/L, and manganese concentration is 0.242mg/L, and the pH value is 8.9.
Embodiment 3: step is with embodiment 1, but with the medicament Ca (OH) in the step 5
2Dosage changes 0.3 kilogram of medicament/cube river into, and other operational condition is constant, and the 1 kilometer concentration of iron located in the river in downstream is reduced to 0.231mg/L, and manganese concentration is 0.067mg/L, and the pH value is 8.8.
Claims (4)
1. one kind is utilized the exceed standard method of water body of diversion canal emergency processing iron, manganese, and it is made up of the following step:
Step 1. is built earth dam: according to national surface water quality standard, polluted river channel is monitored, 1 kilometer place, section downstream builds the earth dam that dams in pollution;
Step 2. excavation diversion canal: be communicated with 20 meters, dam body downstream at the upper reaches apart from dam body 20-50 rice excavation diversion canal, the wide 2.0-3.0 rice of diversion canal, upper reaches water inlet and downstream water outlet drop is greater than 1.5 meters, and uses brick bank protection;
Step 3. is set up the pipeline that feeds intake above diversion canal;
Step 4. is built overfall dike: at the earth dam body downstream river course 3-5 kilometer place of damming, squeeze into behind the timber and build overfall dike one with gunnysack filling stone, highly be lower than river course water surface 0.5-1.0 rice, dam body is suitably reinforced with timber or steelframe;
Step 5. add flocculation agent: the water-in through the pipeline guide lumen canal that feeds intake adds flocculation agent, makes the fully reaction in diversion canal of heavy metal ion and coagulating agent, realizes coagulating sedimentation, and the dosage of medicament is with the pH value of river after guaranteeing to mix>7.5 be advisable;
Step 6. sludge disposal: after river disposes, the body refuse that overfall dike dams is removed, disposed after the dehydration with dredger.
2. method according to claim 1 is characterized in that the earth dam slope top width 6-8 rice that dams in the step 1, and dam body water levels of upstream and downstream difference reaches 1.0-1.5 rice.
3. method according to claim 2 is characterized in that the belt conveyer of pipeline for setting up at the water inlet place that feed intake in the step 3, and discharge port is 2.5-3.0 rice apart from the diversion canal bottom.
4. according to each described method in the claim 1～3, it is characterized in that the overfall dike height in the step 4 is lower than water surface 0.5-1.0 rice, is to load stone with gunnysack to build up; Stirring that the waterpower that quick water outlet through diversion canal behind the adding flocculation agent in the step 5 forms stirs and local return is flocculated.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010102461733A CN101905920B (en) | 2010-08-05 | 2010-08-05 | Method for performing emergency treatment of water with excessive iron and manganese by using diversion channel |
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| CN2010102461733A CN101905920B (en) | 2010-08-05 | 2010-08-05 | Method for performing emergency treatment of water with excessive iron and manganese by using diversion channel |
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Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102249384B (en) * | 2011-05-12 | 2014-05-14 | 泉州师范学院 | Treatment technology for small runoff and heavily-polluted river branches |
| CN105152352B (en) * | 2015-10-12 | 2018-06-05 | 朱学红 | The black smelly aquatic organism purifying processing device in river |
| CN107365015A (en) * | 2017-07-04 | 2017-11-21 | 无锡德林海环保科技股份有限公司 | A kind of black and odorous water processing system |
| CN109052606A (en) * | 2018-08-20 | 2018-12-21 | 环境保护部华南环境科学研究所 | A kind of unexpected environmental accident emergency goes the processing method and its device of removing heavy metals |
| CN109626634B (en) * | 2018-12-20 | 2020-05-19 | 北京师范大学 | Riverway water quality in-situ remediation system and method |
| CN109748396B (en) * | 2019-02-15 | 2022-01-04 | 广东南方建设集团有限公司 | Method for treating downstream river water body |
| CN111960497A (en) * | 2020-07-28 | 2020-11-20 | 中国环境科学研究院 | Emergency disposal method for sudden water pollution based on space time change |
| CN112593595A (en) * | 2021-01-25 | 2021-04-02 | 张艳 | Environment-friendly river channel cleaning method and system |
| CN113104943B (en) * | 2021-04-15 | 2022-11-18 | 张婉琴 | Emergency treatment method for sudden coal water slurry pollution accident of riverway |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US5695642A (en) * | 1995-08-15 | 1997-12-09 | Greenleigh; Stephen H. | Method for purifying contaminated water |
| CN1295161C (en) * | 2005-02-05 | 2007-01-17 | 南京大学 | Method for purifying water of river and channel by biological grid |
| JP2007237027A (en) * | 2006-03-06 | 2007-09-20 | Osakafu Suido Service Kosha | Water purification method |
| CN101254991A (en) * | 2008-03-28 | 2008-09-03 | 合肥工业大学 | Method for controlling lake eutrophication by eliminating river or aqueduct pollution |
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