CN101578997B - Compound disinfectant for circulating water systems - Google Patents
Compound disinfectant for circulating water systems Download PDFInfo
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- CN101578997B CN101578997B CN 200910100123 CN200910100123A CN101578997B CN 101578997 B CN101578997 B CN 101578997B CN 200910100123 CN200910100123 CN 200910100123 CN 200910100123 A CN200910100123 A CN 200910100123A CN 101578997 B CN101578997 B CN 101578997B
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- compound disinfectant
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- cooling water
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Abstract
The invention discloses a compound disinfectant for circulating water systems, comprising benzyltribenzyl phosphonium chloride, dithiocyano-methane and copper sulfate. When the compound disinfectant is used, if certain amount of penetrant is added, the synergistic effect among drugs can be brought into full play, and not only the antibacterial activity can be effectively improved but also microorganisms can be avoided from generating resistance to drugs due to long-term use of single variety of disinfectants. The compound disinfectant of the invention has good disinfection and algae elimination effects and low use cost, simultaneously solves the problem of resistance of bacteria to common disinfectants and is suitable for circulating cooling water systems, reclaimed water circulating systems, clean drainage recycling systems or other circulating water systems.
Description
Technical field
The present invention relates to a kind of compound disinfectant, be applicable to recirculating cooling water system, middle water circulation system, descend water circulation use system or other circulations clearly.
Background technology
Cooling water constantly recycles in system, because water temperature raises, circulates for a long time and concentrates utilizations, causes burn into fouling and biology to stick problems such as mud and grows.The nutriment required along with growth of microorganism constantly concentrates, and its temperature and pH are fit to most growth of microorganism, often cause that micro organism quantity constantly increases in the cooling water system, and then a series of harm such as initiation microbial fouling and corrosion, cause the reduction in recirculating cooling water system efficient and life-span, industrial production is caused huge harm.Fouling in the recirculating cooling water system, corrosion and microbial reproduction are to be mutually related, and the glutinous mud of dirt and microorganism can cause underdeposit corrosion, and corrosion product forms dirt.Have substantial connection between the three, wherein microbial growth is the one of the main reasons that causes the burn into fouling.
One of effective and the most the most frequently used method of growth of microorganism is to add bactericide in cooling water in the control recirculating cooling water system.Common fungicide can be divided into oxidisability and non-oxidizable bactericide two big classes.The bactericide of one-component has shortcomings such as dosage is big, the sterilization kind is single, fragmentation effect is poor, easily develop immunity to drugs.And having synergistic compound prescription, one-component wherein has synergistic effect relatively, and can overcome the weakness of the bactericide of one-component, can also reduce cost.Especially compound between the non-oxidizable bactericide has the exploitation future very much.Patent of invention 02153338.5 discloses a kind of compound disinfectant, contains alkyl benzyl ammonium chloride and two two kinds of quaternary ammonium salts bactericide of alkyl-dimethyl ammonium chloride in the component simultaneously.Because quaternary amine is longer in the application time of China, long-term use easily makes the microorganisms pesticide resistance, and adding consistency rises, and the water treatment expense increases, and easily bubbles.The quaternary alkylphosphonium salt series bactericidal agent is that a new generation is efficient, the spectrum bactericide, and it has similar structure to quaternary amine, just replaces nitrogenous cation in the quaternary amine with phosphorous cation, and the bactericidal effect of analyzing quaternary alkylphosphonium salt from structure is better than the bactericidal effect of quaternary amine.Quaternary alkylphosphonium salt is all effective to Gram-negative bacteria, gram-positive bacteria and mould and algae etc.
Summary of the invention
The invention provides a kind of compound disinfectant that is applicable to circulation, can give full play to the synergy of the single agent of various non-oxidizable sterilizations, suppress effectively and kill heterotroph, fungi, iron bacteria and algae etc., have adding less, microorganism is difficult for producing chemical sproof characteristics, makes the control criterion of the microorganism of circulation reach " Code for design of industrial recirculating cooling water treatment " (GB50050-1995) by adding this composite biocide.
The active component of compound disinfectant of the present invention is made up of the non-oxidizable bactericide of following several classes:
Bian base triphenyl phosphonium chloride (A)
Dithiocyano-methane (B)
Copper sulphate (C)
Quaternary phosphine salts substances benzyl base triphenyl phosphonium chloride at first goes out the quaternary phosphine cation at dissociation in water, is adsorbed on the negative electrical charge position on microorganism surface, forms electrostatic bond, disturbs its vital movement; The quaternary alkylphosphonium salt cation can dissolve, damaging cells wall and plasmalemma; Enter cell interior, make the cellular enzymes passivation, the protein enzyme can not produce, thereby makes protein denaturation, reaches the effect of killing bacteria.
The bactericidal action of dithiocyano-methane is because generating the transfer that thiocyanate radical hinders electronics in the microbial respiratory system in its decomposable process.
The copper sulphate sterilization mechanism is that copper ion can make its sex change precipitation with the microbial cells protein combination, thereby bacterium is lost vigor.
Compound disinfectant of the present invention is used for circulation, A, the B that recommends and the weight ratio of C are 10～20: 10～35: 1, optimum proportioning can be determined according to the water quality situation of actual cycle water (as circulatory system total number of bacteria etc.), generally directly A, B, C are not mixed when composite, but adopt the aqueous solution of three kinds of materials, can make mixing more even.
Compound disinfectant of the present invention is 2～60mg/L in the concentration of circulation.
When using compound disinfectant of the present invention, can in circulation, add a certain amount of relevant bleeding agent simultaneously, can give full play to the synergistic effect between medicament, both can improve antibacterial activity effectively, can avoid again using the bactericide of single variety for a long time and make the microorganisms pesticide resistance.Bleeding agent commonly used has dimethyl formamide, polyethenoxy ether class bleeding agent (as APEO bleeding agent IPA-35) etc., and its addition can draw in conjunction with the laboratory lab scale according to the content of each medicament in the compound disinfectant.
It is low that compound disinfectant of the present invention has good sterilization algae removal effect and use cost, solved the pesticide resistance of bacterium to common fungicide simultaneously.
Embodiment
Embodiment 1
Prepare medicament by following proportioning:
Compound disinfectant in 1L water, wherein adds Bian base triphenyl phosphonium chloride 1.4g, dithiocyano-methane 2.3g, copper sulphate 0.14g by composite the forming of the aqueous solution of A, B, three kinds of materials of C, mixes.
1) in cooling water recirculation system, adds the medicament that configures, the concentration of three kinds of materials in circulation is respectively 10mg/L, 20mg/L, 30mg/L, 40mg/L, 50mg/L, 60mg/L, method according to the industrial circulating cooling water defined, measure the heterotroph killing rate with plate count, the result is as shown in table 1:
Table 1 compound disinfectant is to the heterotroph killing effect
2) in cooling water recirculation system, add the medicament that configures, the concentration of three kinds of materials in circulation is respectively 10mg/L, 20mg/L, 30mg/L, 40mg/L, 50mg/L, 60mg/L, method according to the industrial circulating cooling water defined, measure the fungi killing rate with plate count, the result is as shown in table 2:
Table 2 compound disinfectant is to the fungi killing effect
3) in cooling water recirculation system, add the medicament that configures, the concentration of three kinds of materials in circulation is respectively 2.5mg/L, 5mg/L, 10mg/L, 20mg/L, according to the method for industrial circulating cooling water defined, measure the iron bacteria killing rate with the MPN method, the result is as shown in table 3:
Table 3 compound disinfectant is to the iron bacteria killing effect
4) in cooling water recirculation system, add the medicament that configures, the concentration of three kinds of materials in circulation is respectively 5mg/L, 10mg/L, 15mg/L, 20mg/L, 25mg/L, 30mg/L, 35mg/L, measure the algae inhibiting rate with the spectrophotometric method method, test algae kind is common nuclear chlorella, and the result is as shown in table 4:
Table 4 compound disinfectant is to the algae inhibition
Embodiment 2
Prepare medicament by following proportioning:
Compound disinfectant is formed through the aqueous solution is composite by A, B, three kinds of materials of C, in 1L water, wherein adds Bian base triphenyl phosphonium chloride 1.5g, dithiocyano-methane 2.5g, copper sulphate 0.15g, mixes.
In cooling water recirculation system, add this medicament, the concentration of three kinds of materials in circulation is 40mg/L, and the while adds bleeding agent dimethyl formamide (DMF) in circulation, the concentration of DMF in circulation is respectively 70mg/L, 75mg/L, 80mg/L, 85mg/L, 90mg/L, method according to the industrial circulating cooling water defined, measure the heterotroph killing rate with plate count, the result is as shown in table 5:
The heterotroph killing effect of table 5 compound disinfectant and DMF
Claims (4)
1. the compound disinfectant of a circulation, formed by Bian base triphenyl phosphonium chloride, dithiocyano-methane and copper sulphate, it is characterized in that: it consists of: Bian base triphenyl phosphonium chloride 10-20 weight portion, dithiocyano-methane 10-35 weight portion, copper sulphate 1 weight portion.
2. the application of compound disinfectant as claimed in claim 1 in circulation is characterized in that: Bian base triphenyl phosphonium chloride, dithiocyano-methane and the total concentration of copper sulphate in circulation are 2～60mg/L.
3. the application of compound disinfectant as claimed in claim 2 in circulation is characterized in that: add bleeding agent when adding compound disinfectant in circulation.
4. the application of compound disinfectant as claimed in claim 3 in circulation is characterized in that: described bleeding agent is dimethyl formamide or polyethenoxy ether class bleeding agent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910100123 CN101578997B (en) | 2009-06-29 | 2009-06-29 | Compound disinfectant for circulating water systems |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910100123 CN101578997B (en) | 2009-06-29 | 2009-06-29 | Compound disinfectant for circulating water systems |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101578997A CN101578997A (en) | 2009-11-18 |
| CN101578997B true CN101578997B (en) | 2013-08-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200910100123 Expired - Fee Related CN101578997B (en) | 2009-06-29 | 2009-06-29 | Compound disinfectant for circulating water systems |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102342275A (en) * | 2010-12-13 | 2012-02-08 | 新疆德蓝股份有限公司 | Novel bactericide for oil fields |
| CN104094975B (en) * | 2014-07-29 | 2016-09-07 | 海南正业中农高科股份有限公司 | Agriculturally useful compositions containing dithiocyano-methane and application |
| CN110771626A (en) * | 2019-11-07 | 2020-02-11 | 常州市振邦化工制造有限公司 | Efficient circulating water bactericide and preparation method thereof |
| CN110742085B (en) * | 2019-11-07 | 2020-05-08 | 山东鲁东环保科技有限公司 | Bactericide for composite water quality treatment |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1128735A (en) * | 1995-02-08 | 1996-08-14 | 韩允志 | Method for prepn. of three-purpose agent for preventing scale, corrosion-resistance and disinfection |
| CN1210674A (en) * | 1998-07-28 | 1999-03-17 | 南京农业大学 | Method for preventing and controlling plant diseases in agriculture |
| CN1511791A (en) * | 2002-12-30 | 2004-07-14 | 中国石油化工股份有限公司北京燕山分 | Method for utiliznig sterilizing agent in circular cooling water |
-
2009
- 2009-06-29 CN CN 200910100123 patent/CN101578997B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1128735A (en) * | 1995-02-08 | 1996-08-14 | 韩允志 | Method for prepn. of three-purpose agent for preventing scale, corrosion-resistance and disinfection |
| CN1210674A (en) * | 1998-07-28 | 1999-03-17 | 南京农业大学 | Method for preventing and controlling plant diseases in agriculture |
| CN1511791A (en) * | 2002-12-30 | 2004-07-14 | 中国石油化工股份有限公司北京燕山分 | Method for utiliznig sterilizing agent in circular cooling water |
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| CN101578997A (en) | 2009-11-18 |
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Granted publication date: 20130807 Termination date: 20180629 |