CN102351284A - Method for killing limnoperna fortunei in raw water pipeline by chloramine - Google Patents
Method for killing limnoperna fortunei in raw water pipeline by chloramine Download PDFInfo
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- CN102351284A CN102351284A CN2011101881135A CN201110188113A CN102351284A CN 102351284 A CN102351284 A CN 102351284A CN 2011101881135 A CN2011101881135 A CN 2011101881135A CN 201110188113 A CN201110188113 A CN 201110188113A CN 102351284 A CN102351284 A CN 102351284A
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Abstract
The invention discloses a method for killing limnoperna fortunei in a raw water pipeline by chloramine, which relates to the field of limnoperna fortunei treatment in the raw water pipeline. The method aims at solving the problems of poor feasibility and complicated operation of the method for killing the limnoperna fortunei in the raw water pipeline in the prior art. The method comprises the following operation steps that: the chloramine is added in the raw water pipeline at the water temperature being 15 to 30 DEG C so that the chloramine concentration in the raw water pipeline is 1 to 3mg/L and is maintained for 3 to 12 days. The method has the advantages that 1, chlorine disinfection by-products are few, the attenuation in water is slow, the dispersibility is good, the biomembrane penetrating capability is high, the activity is low, the durability is good, the control effect on organisms at the tail end of a long-distance water conveying pipeline is better, and the effect in the organism control aspect is better than that of free chlorine; and 2, the invention provides an economic and safe water treatment method, the number of the limnoperna fortunei in raw water and the pipeline can be effectively controlled, and in addition, the operation is safe and convenient. The method is mainly used for treating the limnoperna fortunei in the raw water pipeline.
Description
Technical field
The present invention relates to the process field of fresh water mussel in the raw water pipeline.
Background technology
The fresh water mussel is a kind of fresh water mussel; Shell with two pieces of switchings, byssus is flourishing, belongs to being gregariousness property mollusk; Fresh water mussel raised growth breeding in China's southern water area; Not only can influence the ecologic structure of local water body, cause the destruction of the ecosystem, and get in the former water Long-distance Pipeline for Water Conveyance; Breeding in a large number in pipeline; Increase the water delivery resistance of pipeline, worsen water quality, harm waterworks safety.And the fresh water mussel has the ability of in severe environment closed shell protection, and the killing method of short period of time can not be killed it fully, in it comes back to preferably water surrounding, can recover vitality.Therefore, research is significant to thoroughly killing of fresh water mussel.
The existing method of killing fresh water mussel in the pipeline mainly contains physical method and chemical process.Physical method comprise adopt anti-ly adhere to coating, high-temperature water spraying method, set up the pre-treatment facility, sealing anoxic method and artificial mechanism remove method.But its complicated operation, effects limit is more, and feasibility is poor.Adopt and anti-ly to adhere to the coating way and be only applicable to newly-built pipeline, it is big to set up pre-treatment facilities engineering amount.Chemical process mainly adopts the way that adds chemical agent, like lime, copper sulfate, sylvite, cupric oxide, ozone and various molluscicides etc., but considers safety of drinking water property, in the processing that a lot of medicaments can't be used for drinking water.
Summary of the invention
The present invention will solve the method complicated operation that prior art is killed fresh water mussel in the raw water pipeline, the problem of feasibility difference, and provide a kind of chloramines to kill the method for fresh water mussel in the raw water pipeline.
Chloramines is killed the method for fresh water mussel in the raw water pipeline, specifically is that the push step is accomplished: under 15～30 ℃ of water temperatures, in raw water pipeline, apply chloramines, make that chloramines concentration kept 3～12 days in the raw water pipeline under 1～3mg/L.
Advantage of the present invention: one, the present invention adopts chloramines to handle fresh water mussel in the raw water pipeline; The cholorination by product that produces in the treating processes is few; In water slow, the good dispersity of decay, penetrate that the microbial film ability is strong, activity is low, persistence good; The biological control terminal for Long-distance Pipeline for Water Conveyance has better effects, control biological aspect effect stronger than free chlorine; Two, the invention provides the water treatment method of a kind of economy, safety, and this method can effectively control the quantity of fresh water mussel in former water and the pipeline, uses this technology, easy-to-operate has high feasibility.
Embodiment
Embodiment one: the method that this embodiment provides a kind of chloramines to kill fresh water mussel in the raw water pipeline, the concrete operations step is following:
Under 15～30 ℃ of water temperatures, in raw water pipeline, apply chloramines, make that chloramines concentration kept 3～12 days in the raw water pipeline under 1～3mg/L.
Reach 60%～100% through fresh water mussel mortality ratio in the raw water pipeline of this embodiment processing back.
The sterilizing agent of chloramines Chang Zuowei water, its advantage: one, less because of humic substance effect in chloramines and the water, therefore reduced humic substance and the formed carcinogenic substance of free chlorine (like haloform); Two, the chlorine residue longer duration that forms of the chloramines in pipe network, thereby can suppress the breeding again of remaining bacterium effectively; Three, the stink of having avoided chlorine to cause.
This embodiment adopts chloramines to handle fresh water mussel in the raw water pipeline; The cholorination by product that produces in the treating processes is few; In water slow, the good dispersity of decay, penetrate that the microbial film ability is strong, activity is low, persistence good; The biological control terminal for Long-distance Pipeline for Water Conveyance has better effects, control biological aspect effect stronger than free chlorine.
This embodiment provides the water treatment method of a kind of economy, safety, and this method can effectively control the quantity of fresh water mussel in former water and the pipeline, uses this technology, and easy-to-operate has high feasibility.
Embodiment two: the difference of this embodiment and embodiment one is: under 25 ℃ of water temperatures, in raw water pipeline, apply chloramines, make that chloramines concentration kept 4.5 days in the raw water pipeline under 1mg/L.Other is identical with embodiment one.
Reach 80%～90% through fresh water mussel mortality ratio in the raw water pipeline of this embodiment processing back.
Can know that through this embodiment when chloramines concentration was 1mg/L in the former water, though can reach the purpose of killing the fresh water mussel, efficient was not high.
Embodiment three: this embodiment and embodiment one or two differences are: under 20 ℃ of water temperatures, in raw water pipeline, apply chloramines, make that chloramines concentration kept 8 days in the raw water pipeline under 3mg/L.Other is identical with embodiment one or two.
Reach 80%～90% through fresh water mussel mortality ratio in the raw water pipeline of this embodiment processing back.
Embodiment four: this embodiment and embodiment one to three difference are: under 25 ℃ of water temperatures, in raw water pipeline, apply chloramines, make that chloramines concentration kept 4.5 days in the raw water pipeline under 3mg/L.Other is identical with embodiment one or three.
Reach 95%～99% through fresh water mussel mortality ratio in the raw water pipeline of this embodiment processing back.
This embodiment carries out under 25 ℃ of room temperatures, compares with embodiment two only changing chloramines concentration, but higher, effective than embodiment two efficient, can know that therefore increasing chloramines concentration can improve the ability of handling fresh water mussel in the raw water pipeline; Compare the temperature of reaction that raise with embodiment three, but shortened the reaction times, but fresh water mussel mortality ratio is than embodiment three height, so the rising water temperature can improve the ability of handling fresh water mussel in the raw water pipeline.
Embodiment five: this embodiment and embodiment one to four difference are: under 30 ℃ of water temperatures, in raw water pipeline, apply chloramines, make that chloramines concentration kept 3 days in the raw water pipeline under 3mg/L.Other is identical with embodiment one or four.
Handle fresh water mussel mortality ratio＞99% in the raw water pipeline of back through this embodiment.
Through comparing and to know with embodiment two or three; Chloramines concentration is under the constant prerequisite of 3mg/L in guaranteeing former water; Improve the temperature of former water, can shorten application time, both reached the purpose of raising the efficiency; But from the economic angle analysis; Artificial rising temperature of reaction can increase processing cost, and is inadvisable, but in southern hot summer; When natural temperature can reach this temperature, this method was better.
Embodiment six: this embodiment and embodiment one to five difference are: under 20 ℃ of water temperatures, in raw water pipeline, apply chloramines, make in the former water chloramines concentration greater than 3mg/L.Other is identical with embodiment one or five.
The fresh water mussel just carries out closed shell self-protection in this embodiment, and 3～5 days closed shell time, during this period, any medicament is all inoperative.Treat fresh water mussel closed shell totally with the idiotrophic material consumption, just dead successively.Therefore can know that chloramines concentration has not only reduced the efficient of killing in the former water of increase, and increase cost.
Claims (3)
1. chloramines is killed the method for fresh water mussel in the raw water pipeline; It is characterized in that it is that the push step is accomplished that chloramines is killed the method for fresh water mussel in the raw water pipeline: under 15～30 ℃ of water temperatures, in raw water pipeline, apply chloramines, make that chloramines concentration kept 3～12 days in the raw water pipeline under 1～3mg/L.
2. chloramines according to claim 1 is killed the method for fresh water mussel in the raw water pipeline; It is characterized in that it is that the push step is accomplished that chloramines is killed the method for fresh water mussel in the raw water pipeline: under 25 ℃ of water temperatures, in raw water pipeline, apply chloramines, make that chloramines concentration kept 4.5 days in the raw water pipeline under 3mg/L.
3. chloramines according to claim 1 and 2 is killed the method for fresh water mussel in the raw water pipeline; It is characterized in that it is that the push step is accomplished that chloramines is killed the method for fresh water mussel in the raw water pipeline: the hot summer in south; In raw water pipeline, apply chloramines under 30 ℃ of the water temperatures, make that chloramines concentration kept 3 days in the raw water pipeline under 3mg/L.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110188113.5A CN102351284B (en) | 2011-07-06 | 2011-07-06 | Method for killing limnoperna fortunei in raw water pipeline by chloramine |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201110188113.5A CN102351284B (en) | 2011-07-06 | 2011-07-06 | Method for killing limnoperna fortunei in raw water pipeline by chloramine |
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| CN102351284A true CN102351284A (en) | 2012-02-15 |
| CN102351284B CN102351284B (en) | 2015-02-25 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104222050A (en) * | 2014-09-12 | 2014-12-24 | 南通大学 | Method for preventing and controlling limnoperna lacustris in raw water pipeline |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1372797A (en) * | 2001-03-04 | 2002-10-09 | 中国科学院海洋研究所 | Enzyme inhibitor and its application in preventing seawater pipeline from being blocked by mytilus edulis |
| JP2005002593A (en) * | 2003-06-10 | 2005-01-06 | Kansai Electric Power Co Inc:The | Adhesion preventive method for kawahibari-gai(a kind of mussel) |
| CN1583591A (en) * | 2004-05-28 | 2005-02-23 | 清华大学 | Sequential water treating and sterilizing method by chloramine after short free chlorine |
-
2011
- 2011-07-06 CN CN201110188113.5A patent/CN102351284B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1372797A (en) * | 2001-03-04 | 2002-10-09 | 中国科学院海洋研究所 | Enzyme inhibitor and its application in preventing seawater pipeline from being blocked by mytilus edulis |
| JP2005002593A (en) * | 2003-06-10 | 2005-01-06 | Kansai Electric Power Co Inc:The | Adhesion preventive method for kawahibari-gai(a kind of mussel) |
| CN1583591A (en) * | 2004-05-28 | 2005-02-23 | 清华大学 | Sequential water treating and sterilizing method by chloramine after short free chlorine |
Non-Patent Citations (2)
| Title |
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| 徐梦珍等: "输水管道中淡水壳菜的防治研究", 《给水排水》 * |
| 王宝贞等: "优质饮用水的消毒方法", 《哈尔滨工业大学学报》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104222050A (en) * | 2014-09-12 | 2014-12-24 | 南通大学 | Method for preventing and controlling limnoperna lacustris in raw water pipeline |
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| CN102351284B (en) | 2015-02-25 |
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