CN107410353B - Potassium monopersulfate composite disinfectant for hospital sewage treatment - Google Patents
Potassium monopersulfate composite disinfectant for hospital sewage treatment Download PDFInfo
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- CN107410353B CN107410353B CN201710501495.XA CN201710501495A CN107410353B CN 107410353 B CN107410353 B CN 107410353B CN 201710501495 A CN201710501495 A CN 201710501495A CN 107410353 B CN107410353 B CN 107410353B
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- disinfectant
- potassium monopersulfate
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N59/00—Biocides, pest repellants or attractants, or plant growth regulators containing elements or inorganic compounds
- A01N59/02—Sulfur; Selenium; Tellurium; Compounds thereof
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N37/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having three bonds to hetero atoms with at the most two bonds to halogen, e.g. carboxylic acids
- A01N37/36—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having three bonds to hetero atoms with at the most two bonds to halogen, e.g. carboxylic acids containing at least one carboxylic group or a thio analogue, or a derivative thereof, and a singly bound oxygen or sulfur atom attached to the same carbon skeleton, this oxygen or sulfur atom not being a member of a carboxylic group or of a thio analogue, or of a derivative thereof, e.g. hydroxy-carboxylic acids
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N43/00—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds
- A01N43/64—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with three nitrogen atoms as the only ring hetero atoms
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N59/00—Biocides, pest repellants or attractants, or plant growth regulators containing elements or inorganic compounds
Abstract
The invention relates to a disinfectant, in particular to a potassium monopersulfate composite disinfectant for hospital sewage treatment. The composite disinfectant is prepared from the following raw materials in percentage by mass: 50-60% of potassium monopersulfate, 2-3% of sodium chloride, 10-15% of malic acid, 0-20% of citric acid, 0-30% of sodium dichloroisocyanurate and 0-10% of sodium silicate; the preparation method comprises dissolving the above raw materials in water at a mass concentration ratio of 20-30g/L, and adopting a wavelength of 240-280nm and a radiation intensity of 90uW/cm2Irradiating for 5min by an ultraviolet lamp to obtain the product. The disinfectant disclosed by the invention is scientific in component compatibility, simple in production process flow, low in production cost, safe and stable, easy to master in use process, rapid, broad-spectrum and durable in disinfection and sterilization, very suitable for being applied to complex working conditions of hospital sewage, efficient, safe, pollution-free and low in comprehensive cost.
Description
Technical Field
The invention relates to a disinfectant, in particular to a potassium monopersulfate composite disinfectant for hospital sewage treatment.
Background
At present, the treatment of the sewage generated in hospitals still mostly adopts disinfectants mainly containing available chlorine for disinfection treatment, but the chlorine-containing disinfectants can generate a plurality of byproducts in the using process, such as chlorohydrocarbon, chloroacetic acid, chloroacetonitrile, chloroketone and the like, and epidemiological investigation shows that the byproducts are closely related to the canceration of urinary systems, gastrointestinal cancer, abortion of pregnant women and other reproduction and development problems, such as chlorine dioxide which is a main component of certain disinfectants, although animal experiments of the disinfectants belong to non-toxic grade, high-concentration chlorine dioxide and byproducts thereof can have potential harm to human health, and the industrial standardization and preparation method thereof, the differentiation standards of effective components, the storage and transportation safety problems and the like are still to be solved.
The peroxy disinfectant has the advantages of high operability, wide antimicrobial spectrum (even if heterogeneous organic matters exist), no continuous toxicity and genetic toxicity, no influence of the pH value of a solution, short contact time, suitability for primary and secondary wastewater effluents and the like; ozone can kill a variety of microorganisms including gram positive and negative bacteria, spores, viruses, fungi, and even parasites. However, the following problems also exist:
(1) the dosage of the hydrogen peroxide is high when the hydrogen peroxide is used alone, and the interaction mechanism among different hydrogen peroxide compounds and the toxicity after compatibility are still to be further researched;
(2) the disinfection capacity of ozone changes along with the changes of pH value, temperature, RH, additives (surfactant, saccharide and the like) and the quantity of organic matters around cells, and disinfection by-products (DBPs) such as saturated aldehydes, organic acids, epoxy compounds, brominated compounds and the like are generated during ozone disinfection;
(3) although the use of peroxy-based disinfectants is more desirable than chlorine and chlorine dioxide in disinfection, the evaluation of safety has yet to be further investigated.
CN104719336A discloses a low-corrosivity potassium monopersulfate composite salt disinfectant, the main component of the disinfectant with the formula playing a role in disinfection and sterilization is potassium monopersulfate, and due to the characteristics of the potassium monopersulfate, the formula can achieve the purpose of effective sterilization only by needing more auxiliary components, and the problems of complex formula components and high cost are caused.
Therefore, effective chlorine disinfectants and peroxy disinfectants have advantages and disadvantages, and a novel disinfectant which is rapid, broad-spectrum and capable of continuously sterilizing is urgently needed in the treatment of hospital sewage, namely a water body containing a large amount of fungi, bacteria, viruses and spores.
Disclosure of Invention
Aiming at the defects of the prior art, the invention aims to provide the potassium monopersulfate composite disinfectant for hospital sewage treatment, which has the characteristics of strong sterilization and disinfection capacity and low available chlorine content, and the peroxyacid generated by the reaction has the advantages of both available chlorine type disinfectants and peroxyl type disinfectants, so that three substances generated due to the high available chlorine content can be avoided, the high-concentration requirement when the peroxyacid is used only can be met, the cost is saved, and the potential safety hazard is reduced.
The potassium monopersulfate composite disinfectant for hospital sewage treatment is prepared from the following raw materials in percentage by mass:
preferably, the material is prepared from the following raw materials in percentage by mass:
wherein:
the molar dosage of the malic acid is 2 times of the difference between the molar dosages of the potassium monopersulfate and the sodium chloride;
the preparation method of the disinfectant comprises the following steps: the raw materials with the above proportion amount are dissolved in water according to the mass concentration ratio of 20-30g/L, and the wavelength is 240-280nm, and the radiation intensity is 90uW/cm2Irradiating for 5min by an ultraviolet lamp to obtain the product.
In the invention:
potassium monopersulfate belongs to a non-chlorine oxidation type active component in the disinfectant, and can release various active species including small molecular free radicals and nascent oxygen after being dissolved in water, so that the cell membrane permeability barrier of microorganisms can be damaged, pathogens can be oxidized, and mycoprotein is denatured and solidified, thereby killing pathogenic microorganisms; make and produce free chloride ion in the solution after the sodium chloride composition that exists simultaneously decomposes in the disinfectant, the sulfate radical free radical that potassium hydrogen persulfate decomposed the production can be through free radical chain formula effect activation chloride ion, produces chlorine free radical and chlorine molecule free radical, and substances such as oxidation generation chlorine and hypochlorous acid play disinfection's effect through destroying thallus DNA, are favorable to the getting rid of to the ammonia nitrogen simultaneously.
Potassium monopersulfate has strong oxidizability, but is easy to rapidly release oxygen after being dissolved in water, and has weak sterilization effect, so that the potassium monopersulfate cannot be simply used for disinfection, and other components such as chloride ions and organic acid are required to be added; the free radical of sulfuric acid released from potassium monopersulfate oxidizes chloride ions and organic acids, but the concentration of free radical of sulfuric acid and its oxidation potential affect the reaction and how quickly the reaction is formedMore sulfate radicals and effective development of their oxidizing properties are the primary problems. In metal ions, e.g. Co2+，Fe2+And the sulfuric acid free radical can be formed more quickly under the catalysis of ultraviolet rays, so that the sulfuric acid free radical reacts with chloride ions and organic acid in the formula to generate hypochlorous acid and peroxy acid, and the hypochlorous acid and the peroxy acid play a role in disinfection and sterilization. The function of the ultraviolet ray is to provide certain potential energy for electrons, so that HSO (hydrogen silsesquioxane)5 -Better removal of H+generating-SO5 -Thereby forming-SO5-SO5-, which in turn generates free radicals of sulfuric acid.
Malic acid is an organic acid, and is added into a system to play a role in adjusting pH, but the more important role is that the organic acid is easily oxidized into peroxy acid by potassium monopersulfate, and the peroxy acid plays a role in disinfection and sterilization by destroying sulfydryl and disulfide bonds of thalli.
Because original chloride ions and organic acid can play a role in disinfection and sterilization at the first time, but in actual use, organic matters and inorganic matters in water, such as ammonia nitrogen and the like, can consume oxidizing agents, sodium dichloroisocyanurate is specially added for keeping the lasting bactericidal capacity, and the method is characterized in that hypochlorous acid is continuously generated along with the reduction of hypochlorous acid in the balance of aqueous solution.
The invention fully utilizes the strong oxidizing property of the potassium monopersulfate, strongly exerts the strong oxidizing property of the potassium monopersulfate in the form of a catalyst or ultraviolet catalysis, generates hypochlorous acid and peroxyacid, forms an inorganic-organic composite disinfectant, and achieves the effects of efficient broad-spectrum disinfection and sterilization. The present invention does not use Co in consideration of the secondary pollution problem2+、Fe2+As the catalyst, a UV-catalyzed method is selected.
Because of different use environments, the following 3 auxiliary components are selected in the formula of the invention: citric acid, sodium silicate and sodium dichloroisocyanurate, wherein if organic matters, inorganic matters and the like in a water body of the sewage need to consume less impurities of an oxidant, the citric acid and the sodium silicate are selected in consideration of reducing byproducts as much as possible; if the water body contains more impurities, the durable sterilizing capability of the disinfectant is considered, and sodium dichloroisocyanurate is selected.
In summary, the invention has the following advantages:
the disinfectant disclosed by the invention is scientific in component compatibility, simple in production process flow, low in production cost, safe and stable, easy to master in use process, rapid, broad-spectrum and durable in disinfection and sterilization, very suitable for being applied to complex working conditions of hospital sewage, efficient, safe, pollution-free and low in comprehensive cost.
Detailed Description
The present invention will be further described with reference to the following examples.
Example 1
The potassium monopersulfate composite disinfectant for hospital sewage treatment is prepared from the following raw materials in percentage by mass:
the preparation method comprises the following steps: the raw materials with the above proportion amount are dissolved in water according to the mass concentration ratio of 20-30g/L, and the wavelength is 240-280nm, and the radiation intensity is 90uW/cm2Irradiating for 5min by an ultraviolet lamp to obtain the product.
Example 2
The potassium monopersulfate composite disinfectant for hospital sewage treatment is prepared from the following raw materials in percentage by mass:
the preparation method comprises the following steps: the raw materials with the above proportion amount are dissolved in water according to the mass concentration ratio of 20-30g/L, and the wavelength is 240-280nm, and the radiation intensity is 90uW/cm2Irradiating for 5min by an ultraviolet lamp to obtain the product.
The disinfectant product obtained in example 1 was diluted to 50mg/L for the microbiocidal test.
The inspection basis is as follows: disinfection technical Specification 2002 edition of Ministry of public health
Experimental strains: staphylococcus aureus (ATCC6538), Candida albicans (ATCC10231), Escherichia coli (ATCC25922)
And (3) sterilization time: 15min, and respectively adding the following two neutralizers for neutralization after finishing the neutralization so as to terminate the disinfection reaction:
no. 1 neutralizer: 0.5% sodium thiosulfate
No. 2 neutralizer: 3% Tween-80 + 0.5% sodium thiosulfate + 0.5% L-histidine + 0.5% peptone + 0.85% sodium chloride + 1.43% lecithin + 0.1% cysteine 33
The effective rate of disinfection and sterilization is as follows:
staphylococcus aureus (ATCC6538) when neutralizer No. 1 was used: 100%, candida albicans (ATCC 10231): 100%, escherichia coli (ATCC 25922): 100 percent.
Staphylococcus aureus (ATCC6538) when neutralizer No. 1 was used: 100%, candida albicans (ATCC 10231): 100%, escherichia coli (ATCC 25922): 100 percent.
Claims (1)
1. The utility model provides a hospital sewage treatment is with potassium monopersulfate composite disinfectant which characterized in that: the material is prepared from the following raw materials in percentage by mass:
the preparation method of the composite disinfectant comprises the following steps: the raw materials with the above proportion amount are dissolved in water according to the mass concentration ratio of 20-30g/L, and the wavelength is 240-280nm, and the radiation intensity is 90 muW/cm2Irradiating for 5min by an ultraviolet lamp to obtain the product.
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| CN201710501495.XA CN107410353B (en) | 2017-06-27 | 2017-06-27 | Potassium monopersulfate composite disinfectant for hospital sewage treatment |
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| CN107410353A CN107410353A (en) | 2017-12-01 |
| CN107410353B true CN107410353B (en) | 2020-11-06 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110498499A (en) * | 2019-08-01 | 2019-11-26 | 同济大学 | A kind of disinfectant reducing Disinfection Byproducts in Drinking Water concentration |
| CN111226982A (en) * | 2020-02-17 | 2020-06-05 | 四川水王子环境科技有限公司 | Sewage disinfection powder and preparation method and use method thereof |
| CN115606604A (en) * | 2022-09-29 | 2023-01-17 | 中邦(成都)电器有限公司 | Method for using inorganic disinfectant |
| CN116235863A (en) * | 2023-01-04 | 2023-06-09 | 四川省畜牧科学研究院 | Decomposition-resistant disinfectant |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| DE102005059135A1 (en) * | 2005-12-10 | 2007-06-14 | Chemoform Gmbh & Co. Kg | Disinfectant in the form of substance arrays for swimming pool water, comprises separate units containing chemical substances |
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| CN1235481C (en) * | 2003-12-15 | 2006-01-11 | 韶山大北农动物药业有限公司 | Water soluble composite potassium monopersulfate powder disinfectant |
| US20090232903A1 (en) * | 2005-12-16 | 2009-09-17 | Sanderson William D | Biocide compositions |
| CN101049107A (en) * | 2006-07-11 | 2007-10-10 | 成都润兴消毒药业有限公司 | Sterilization powder, and preparation method. |
| CN103503922A (en) * | 2013-10-23 | 2014-01-15 | 孔令义 | Disinfection powder for hospital wastewater disinfection |
| CN104585232A (en) * | 2015-01-28 | 2015-05-06 | 威海百克环保工程有限公司 | Compound disinfection powder for disinfecting hospital and aquaculture wastewater |
| CN104719336A (en) * | 2015-02-02 | 2015-06-24 | 山东威高药业股份有限公司 | Low-corrosion potassium peroxymonosulfate disinfector |
| CN104957189A (en) * | 2015-06-17 | 2015-10-07 | 盐城恒兴饲料有限公司 | Disinfectant for water in grass carp and prawn mixed aquaculture ponds and method for applying disinfectant |
| CN105036291A (en) * | 2015-08-05 | 2015-11-11 | 同济大学 | Method for degrading smelly substance in water through oxidizing agent activated by ultraviolet light |
| CN106376595A (en) * | 2016-08-28 | 2017-02-08 | 连云港永荣生物科技有限公司 | Safe and environment-friendly sewage disinfection powder |
| CN106430759A (en) * | 2016-10-21 | 2017-02-22 | 武汉纺织大学 | Method for treating organic waste water by catalyzing persulfate by means of microwave-ultraviolet coupling |
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| DE102005059135A1 (en) * | 2005-12-10 | 2007-06-14 | Chemoform Gmbh & Co. Kg | Disinfectant in the form of substance arrays for swimming pool water, comprises separate units containing chemical substances |
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