CN107758924A - A kind of medical sewage processing method for preventing carcinogen and inorganic agent - Google Patents

A kind of medical sewage processing method for preventing carcinogen and inorganic agent Download PDF

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CN107758924A
CN107758924A CN201711088976.9A CN201711088976A CN107758924A CN 107758924 A CN107758924 A CN 107758924A CN 201711088976 A CN201711088976 A CN 201711088976A CN 107758924 A CN107758924 A CN 107758924A
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sewage
waste water
chlorine
medical
filter
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CN107758924B (en
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许伟琦
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    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F9/00Multistage treatment of water, waste water or sewage
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/50Treatment of water, waste water, or sewage by addition or application of a germicide or by oligodynamic treatment
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/72Treatment of water, waste water, or sewage by oxidation
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/001Processes for the treatment of water whereby the filtration technique is of importance
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/72Treatment of water, waste water, or sewage by oxidation
    • C02F1/76Treatment of water, waste water, or sewage by oxidation with halogens or compounds of halogens
    • C02F1/766Treatment of water, waste water, or sewage by oxidation with halogens or compounds of halogens by means of halogens other than chlorine or of halogenated compounds containing halogen other than chlorine
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2103/00Nature of the water, waste water, sewage or sludge to be treated
    • C02F2103/003Wastewater from hospitals, laboratories and the like, heavily contaminated by pathogenic microorganisms
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2301/00General aspects of water treatment
    • C02F2301/08Multistage treatments, e.g. repetition of the same process step under different conditions
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2303/00Specific treatment goals
    • C02F2303/02Odour removal or prevention of malodour
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2303/00Specific treatment goals
    • C02F2303/04Disinfection

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  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Treatment Of Water By Oxidation Or Reduction (AREA)

Abstract

The present invention relates to medical waste water process field, and in particular to during one kind liquid chlorine disinfection, prevents the medical sewage disinfection treatment method and inorganic agent of carcinogen.The present invention can avoid medical waste water from producing secondary pollution, suppress Chlorination Process and produce carcinogen, improve liquid chlorine disinfection effect, prevent contaminated wastewater air from producing stink, the input for reducing sewage treatment equipment, increasing economic efficiency.The technical solution adopted by the present invention is:1) sewage-treating agent is prepared;2) sewage disposal is carried out in accordance with the following steps:Medical waste water → addition sewage-treating agent mixing → liquid feeding chlorination → coarse filtration → middle filter → refined filtration → sampling → qualified discharge → city planting ductwork.The present invention can be disinfected quickly to medical waste water, not produce carcinogenic substance, without setting the containers such as buffer pool, regulating reservoir, sterilization pool, cistern.

Description

A kind of medical sewage processing method for preventing carcinogen and inorganic agent
Technical field
The present invention relates to medical waste water, sewage treatment area, and in particular to during one kind liquid chlorine disinfection, prevents carcinogenic The medical sewage disinfection treatment method and inorganic agent of material.
Background technology
Medical sewage, waste water are mainly from the consulting room of hospital, laboratory, ward, laundry, X pieces photo studio and operation The sewage of the discharges such as room, its sewage source and composition are sufficiently complex.Contain substantial amounts of pathogenetic bacteria, virus and change in medical waste water Medicament is learned, the feature with space-pollution, acute infection and latent infection.It can be divided into infectious hospital's waste water by hospital's property With general hospital's waste water;Can be divided into by waste component has radioactivity hospital wastewater, discarded medicine hospital wastewater, content metal ion Hospital wastewater.
Need to use different specially treated technique for waste water of different nature, intractability is big, and existing medical treatment is useless Method for treating water is as follows:
Medical waste water handling process is as follows:Pretreatment+coagulation+two stage treatment+advanced treating+sterilization+water outlet.
Change the process of hospital wastewater water quality, mainly kill the pathogenic microorganisms in waste water.In order to improve Disinfection Effect, Waste water can be pre-processed before sterilization, including firsts and seconds processing.
Sterilization:Medical waste water disinfection treatment method has chloridising, Ozone, ultraviolet sterilization.It is main in chlorination There is liquid chlorine method, throw three kinds of sodium chlorate and Chlorine Dioxide Method etc..For eliminate the pathogen in waste water or sludge or be allowed to inactivation and The processing procedure of progress, is divided into wastewater disinfection and sludge disinfection.
Sewage disposal of hospital mainly sterilizes, that is, kills pathogen.The water quality of hospital wastewater is sufficiently complex, typically with The increase of water, also more and more higher, sewage disposal of hospital flow will also set tune to corresponding pollutant concentration except setting sterilization pool Pond is saved, regulating reservoir not only can eliminate peak load, and can make its treatment effect will not be because of water with regulating water quality with regulating pondage Qualitative change and be interfered.The toss area of disinfectant is typically chosen in after regulating reservoir.Disappeared after flotation precipitation through sterilization pool After poison, qualified discharge.The excess sludge of sedimentation basin is discharged into regulating reservoir, and the sludge of regulating reservoir and contact-oxidation pool squeezes into sludge digestion Pond carries out aerobic sigestion processing can qualified discharge.
At present, medical waste water sterilization process is by following several:
Ozone handling process
Ozone is a kind of unstable gas with excitant special odor.At normal temperatures, ozone is blue gas, for Know one of most strong oxidant.
Ozone processing can kill bacterial propagule and brood cell, virus, fungi etc., and can destroy clostridium botulinum toxin, be The best handling process of antivirus effect at present.After ozone is handled, the removal of bacteria rate in water is 99.985%- 99.998%, organics removal 40%, chroma removal rate 77%, nitrites clearance is 79.5%, and albuminoid ammonia is gone Except rate is 11.9%.But it is disadvantageous in that running cost is more expensive using liquid chlorine disinfection than tradition, and cost is high.
Chlorination handling process
Liquid chlorine is widely applied to every field, is so far using most as a kind of most common disinfectant at present More Water Disinfection methods.It is mainly characterized by bottled liquid chlorine wide material sources of industrial products, reliable, chlorination it is disposable Equipment investment and operating cost are relatively low, while Disinfection Effect is more stable, there is the design experiences of comparative maturity, thus application is compared Extensively, it is disadvantageous in that after the application by nearly 20 years, it has been found that:The waste water containing organic matter is handled with chlorine, particularly Water containing humic acid, halogenated hydrocarbons (haloform, chlorohydrocarbon etc.) can be generated, and this material has great break to tissue Bad property simultaneously has carcinogenesis.In addition, liquid chlorine disinfection is invalid to some viruses, gemma.Sterilized using liquid chlorine method, over time Passage, Inactivation of Enteric Viruses In Water produces larger resistance to cholorination.
The conventional disinfectant in China is liquid chlorine, and caused sludge is frequently with lime disinfection method and During High-Temperature Composting in processing procedure Method is handled, it is difficult to utterly destroys the substantial amounts of germ contained in sludge, virus, parasitic ovum, and processing time is grown, efficiency It is low slightly to handle not in place, it is necessary to special place carries out During High-Temperature Composting processing, secondary pollution will be caused.
Using liquid chlorine disinfection method, using chlorinating machine, solutions of chlorine is launched with chlorination at regular time and quantity.Dirt through coagulation Water, chlorine dosage can be set to 20~30mg/L;Sewage through two stage treatment, chlorine dosage can be set to 10~20mg/L.Actual chlorine dosage It is adjusted by residual chlorine amount in outlet sewage.After chlorine is added in the pure water without organic matter, cold chloric acid is formed soon, it is cold Chloric acid, which kills Escherichia coli, only needs a few minutes, but kills some viruses and want a hour;As organic matter in water be present, chlorine can be with These materials react, unless chlorine-throwed quantity is big, be not in otherwise free chlorine in water.Disinfectant must effectively contact just with bacterium Bacterium can be killed, in order to ensure the sterilization of optimum efficiency, to there is certain time of contact, good mixing is to improve germicidal efficiency One of necessary condition.
Dutch Rook in 1974 and U.S. Belier find to exist in prechlorination and the water of chlorination first haloform, The DBPs such as carbon tetrachloride (DBPS), and there is carcinogenic, mutagenesis.The mid-80, people have found another again Class halogen acetic acid (HAAS), carcinogenic risk is bigger, such as the carcinogenic risk of dichloroacetic acid (DCH) and trichloroacetic acid (TCA) is respectively 50 times of chloroform and 100 times.So far, with the development of science and technology people detect 2221 kinds of organic contaminations in water source Thing.
The Discharge standard of water pollutants for medical organization GB18466-2005 that China in 2005 formulates) in《General practice machine Structure and other medical institutions' water pollution emission limits (annual average)》, it is specified that:(1) pathogenic entero becteria, enterovirus must not be detected. (2) every liter of excrement colibacillus group number cannot be greater than 500.(3) total residual chlorine (technique to be carried out disinfection using chlorine-containing disinfectant):Must not More than 0.5mg/L (discharge standards:Antisepsis contact tank Jie touches Shi Jian≤1h, 3~10mg/L of contact chamber total residual chlorine).It is although not right Carcinogen is limited in waste water, but as country gradually steps up to environmental requirement, reduces the carcinogen in waste discharge Into problem urgently to be resolved hurrily, there is high economic implications to each medical institutions.
Therefore how research, which suppresses Chlorination Process generation carcinogen, has very high environment protection significance and economic value.
The content of the invention
In order to solve above-mentioned deficiency, the purpose of the present invention is to produce carcinogen to suppress Chlorination Process, improve liquid A kind of chlorination effect, there is provided medical sewage inorganic agent for preventing carcinogen.
It is another object of the present invention in order to improve the holding time of sewage-treating agent, avoid moisture absorption deliquescence, reduce component With the activity of combustibles reaction, inorganic agent is set to be easy to preserve, there is provided a kind of medical sewage inorganic agent for preventing carcinogen Preparation method.
It is another object of the present invention to avoid medical waste water from producing secondary pollution, it is carcinogenic to suppress Chlorination Process generation Material, improve liquid chlorine disinfection effect, prevent contaminated wastewater air from producing stink, the input for reducing sewage treatment equipment, improving warp A kind of Ji benefit, there is provided tubular type disinfection treatment method that carcinogen is prevented for medical waste water.
In order to realize the goal of the invention of the present invention, the present invention adopts the following technical scheme that:
A kind of medical sewage inorganic agent for preventing carcinogen, it is composed of the following components by weight:Zinc acetate 40- 160th, super calcium oxide 150-450, polyacrylamide 50-200, Nano-meter SiO_2260-130。
A kind of preparation method for the medical sewage inorganic agent for preventing carcinogen:
S1, by super calcium oxide, polyacrylamide add kneader, process 1-4 hour, it is stand-by;
S2, Nano-meter SiO_2 is added in said mixture2, 1~3h is mediated in stirring, stand-by;
S3, zinc acetate is added, stirring mediates 1~3h, obtains waste water treating agent.
Stirring, which is mediated, uses existing kneader device, such as kneader.
A kind of medical sewage disinfection treatment method for preventing carcinogen, including inorganic agent preparation and add, three Level filtration system, contact sterilizing system three digest journals, it is characterized in that step is as follows:
1) sewage-treating agent is prepared according to above-mentioned prescription proportioning and preparation technology;
2) sewage disposal is carried out in accordance with the following steps:Medical waste water → addition sewage-treating agent mixing → liquid feeding chlorination → Coarse filtration → middle filter → refined filtration → sampling → qualified discharge → city planting ductwork.
When hospital sets waste water container, inorganic agent charge door and chlorine is set to be passed through mouth in waste water container;Hospital is not provided with During waste water container, inorganic agent is added before medical waste water enters drainpipe, sets chlorine to be passed through mouth on pipeline, or in waste pipe Inorganic agent charge door and chlorine is set to be passed through mouth on road.Therefore the present invention does not have to set buffer pool, regulating reservoir, sterilization pool, cistern Deng container.
Medical waste water is firstly added sewage-treating agent chlorination again, subsequently into drainpipe, by coarse filter, middle filter, Fine filter forms three-level filter system, removes SS suspensions, COD, BOD in sewage.
Coarse filter, middle filter, fine filter are connected by drainpipe, are connected to urban pipe network.
Contact sterilizing system is made up of drainpipe and filter, after medical waste water adds inorganic agent and chlorine, the row of immediately entering In water pipe and filter, waste water is completed to use liquid chlorine disinfection in drainpipe and filter.
Pipeline and filter are water-tight gas leakage, can be normally along pipe drainage, but water-tight gas leakage, therefore are being arranged During water, the water of pipe ends plays sealing function, improves the Disinfection Effect of chlorine, and prevents chlorine Molecular leak.
The length of contact sterilizing system designs without especially extending according to the maximum hour sewage quantity of medical waste water, ensures Its residence time in pipeline and filter can reach the residence time required by medical waste water treatment technology guide, contact sterilizing The length of system is pipeline and filter total length of the chlorination mouth to sample tap.Contact during liquid chlorine disinfection with waste water at present Time wants more than 30 minutes, kill some bacteriums need contact one hour, inorganic agent can improve solutions of chlorine kill efficiency, 15 points Sterilization can be completed to kill in clock, therefore the length of contact sterilizing system be without especially extending, only the time of three-stage filtration has been Sterilization is completed enough.
Chlorination uses chlorinating machine, and water sample is extracted from sample tap, and its colourity, adjustment chlorinating machine dispensing are observed with chlorine residue colorimetric method The size of amount, its chlorine residue index is set to meet relevant criterion.
The dosage of waste water treating agent is adjusted according to the concentration of pollutant in medical waste water, the water sample that detection sample tap extracts, Discharge is set to meet national regulation.
A kind of medical sewage for preventing carcinogen disinfects system, including inorganic agent preparation and add, three Level filtration system, contact sterilizing system three digest journals, it is characterized in that:
1) sewage-treating agent is prepared according to above-mentioned prescription proportioning and preparation technology;
2) it is made up of drainpipe and filter, waste water completes liquid chlorine disinfection technique in drainpipe and filter;
3) sewage disposal is carried out in accordance with the following steps:Medical waste water → addition sewage-treating agent mixing → liquid feeding chlorination → Coarse filtration → middle filter → refined filtration → sampling → qualified discharge → city planting ductwork.
When hospital sets waste water container, inorganic agent charge door and chlorine is set to be passed through mouth in waste water container;Hospital is not provided with During waste water container, inorganic agent is added before medical waste water enters drainpipe, sets chlorine to be passed through mouth on pipeline, or in waste pipe Inorganic agent charge door and chlorine is set to be passed through mouth on road.
Medical waste water is firstly added sewage-treating agent chlorination again, subsequently into drainpipe, by coarse filter, middle filter, Fine filter forms three-level filter system, removes SS suspensions, COD, BOD in sewage.
Coarse filter, middle filter, fine filter are connected by drainpipe, are connected to urban pipe network.
Contact sterilizing system is made up of drainpipe and filter, after medical waste water adds inorganic agent and chlorine, the row of immediately entering In water pipe and filter, waste water is completed to use liquid chlorine disinfection in drainpipe and filter.
Pipeline and filter are water-tight gas leakage, can be normally along pipe drainage, but water-tight gas leakage, therefore are being arranged During water, the water of pipe ends plays sealing function, improves the Disinfection Effect of chlorine, and prevents chlorine Molecular leak.
The length of contact sterilizing system designs without especially extending according to the maximum hour sewage quantity of medical waste water, ensures Its residence time in pipeline and filter can reach the residence time required by medical waste water treatment technology guide, contact sterilizing The length of system is pipeline and filter total length of the chlorination mouth to sample tap.Contact during liquid chlorine disinfection with waste water at present Time wants more than 30 minutes, kill some bacteriums need contact one hour, inorganic agent can improve solutions of chlorine kill efficiency, 15 points Sterilization can be completed to kill in clock, therefore the length of contact sterilizing system be without especially extending, only the time of three-stage filtration has been Sterilization is completed enough.
Chlorination uses chlorinating machine, and water sample is extracted from sample tap, and its colourity, adjustment chlorinating machine dispensing are observed with chlorine residue colorimetric method The size of amount, its chlorine residue index is set to meet relevant criterion.
The dosage of waste water treating agent is adjusted according to the concentration of pollutant in medical waste water, the water sample that detection sample tap extracts, Discharge is set to meet national regulation.
Contain large amount of organic in medical waste water, easily produce halogenated hydrocarbons during with liquid chlorine disinfection.Super calcium oxide is prior to chlorine Oxidation of organic compounds, weaken the reaction of organic matter and liquid chlorine, and to waste water decoloring deodorization;Zinc acetate suppresses liquid chlorine to organic matter, corruption The effect of acid is grown, reduces the generation of the chloride from humic acid, avoids producing halogenated hydrocarbons, avoids producing carcinogenic substance, so as to keep away The secondary pollution in wastewater treatment process is exempted from.The chlorination sterilization general time of contact required no less than 30min, general dosage Solutions of chlorine it is invalid to virus, protozoon, gemma, and use for a long time, virus easily produces resistance, and zinc acetate can improve chlorine The disinfection efficiency and killing effect of solution, and chlorine share virus can be avoided to produce resistance, reduce the dosage of chlorine.The oxygen of inorganic agent Change acts on the colourity that can reduce waste water, and it is smelly to prevent that filtering implements from rotting, prevents and treats and moss is grown in filter, prevents microorganism Growth and breeding in the filter, so as to avoid blocking filter, extend the filter working time.Polyacrylamide makes part nanometer SiO2It is suspended in waste water, Nano-meter SiO_22Molecular motion destroy the growth and breeding environment of microorganism, prevent to produce in waste water blue or green Tongue.
In the preparation method of medical sewage inorganic agent, stirring kneading process in step S1 is by polyacrylamide, super oxygen Calcium is combined into granule, improves the Deliquescence-resistant ability of super calcium oxide and polyacrylamide, avoids the moisture absorption;Reduce super calcium oxide and inflammable The activity of thing reaction.Step S2 kneading process is in one layer of super calcium oxide, polyacrylamide conjugate outer cladding Nano-meter SiO_22, keep away Exempt from super calcium oxide, the polyacrylamide moisture absorption;Kneading process makes Nano-meter SiO_22It is partially submerged into polyacrylamide super oxygen pellet, When inorganic agent is added to the water, granule can be accelerated to be disintegrated;Step S3 kneading process is in Nano-meter SiO_22Outer cladding zinc acetate, is played The effect of duplicate protection, super calcium oxide, polyacrylamide moisture absorption deliquescence are thoroughly avoided, thoroughly avoid super calcium oxide and combustibles anti- Should.So as to improve the security of sewage-treating agent, extend the expiration date, be easy to store and transport.
Beneficial effects of the present invention:
1st, waste water treating agent has disinfecting and sterilizing functions, and joint solutions of chlorine uses, and can improve sterilization killing effect, and subtract The dosage of few chlorine.The present invention before sterilization to waste water without pre-processing, less with carrying out firsts and seconds processing, therefore work Skill is simple, and treatment effeciency is high.
2nd, wastewater disinfection and sludge disinfection need not be subdivided into, is directly disinfected in pipeline and filter, disinfection efficiency Height, killing bacterium is more thorough, does not produce sludge, and less with to sludge disinfection, it is thoroughly caused not secondary to avoid sludge disinfection Pollution.The solid that filter filters out to put aside it is a certain amount of can just slag tap, this process by solutions of chlorine for a long time sterilize, Thorough disinfection, therefore without sterilization, can be with Direct Disposal.
3rd, liquid chlorine disinfection technique is completed in the closed environment that pipeline and filter are formed, the dirt of the air such as stink will not be produced Dye, virus will not leak with air and water vapour, and safety coefficient is high.
4th, liquid chlorine disinfection method is used at present, over time, Inactivation of Enteric Viruses In Water produces larger resistance to cholorination, The efficiency and effect of liquid chlorine disinfection are improved using the inorganic agent of the present invention, avoids virus from producing resistance, kills virus ahead of time.Therefore The present invention need not set circulating line or sterilization pool etc. to sterilize place, without setting sterilization pool, regulating reservoir, buffer pool, water storage Pond, settling tank, oxidation pond, aeration tank etc., technique is simple, and operational reliability and stability are strong..
5th, the present invention handles the water containing organic matters such as humic acid with chlorine, will not produce halogenated hydrocarbons (haloform, chlorohydrocarbon Deng) etc. carcinogenic substance, inorganic agent prevent organic pollution in waste water from producing harmful substance, carcinogen.
6th, waste water treating agent absorption pollutant, improves filter effect.
7th, processing method of the present invention is without using the high disinfectant of the costs such as ozone, therefore the present invention reduces production cost and improved Economic benefit.
8th, disinfectant must effectively contact with bacterium could kill bacterium, in order to ensure the sterilization of optimum efficiency, there is one Fixed time of contact, good mixing are one of necessary conditions for improving germicidal efficiency.And the present invention utilizes Nano-meter SiO_22As Disintegrant accelerates inorganic agent disintegration, and disintegrating procedue accelerates the mixing of solutions of chlorine, filter is flowed to from drainage pipeline plus waste water When produce impact vortex and be well mixed solutions of chlorine, therefore can omit and be stirred technique.
9th, inorganic agent avoids corrosion of the liquid chlorine disinfection agent to equipment.
10th, processing method of the present invention adds inorganic agent and disinfectant to waste water first, avoids the virus of pretreating process Pollution, first sterilization avoid pollution viral in subsequent technique.
Embodiment
In order that the technical means, the inventive features, the objects and the advantages of the present invention are easy to understand, tie below Specific embodiment is closed, the present invention is expanded on further.
Embodiment 1
A kind of medical sewage inorganic agent for preventing carcinogen, it is composed of the following components by weight:Zinc acetate 50, Super calcium oxide 420, polyacrylamide 63, Nano-meter SiO_22 75。
Embodiment 2
A kind of medical sewage inorganic agent for preventing carcinogen, it is composed of the following components by weight:Zinc acetate 150th, super calcium oxide 185, polyacrylamide 190, Nano-meter SiO_22126。
Embodiment 3
A kind of medical sewage inorganic agent for preventing carcinogen, it is composed of the following components by weight:Zinc acetate 83, Super calcium oxide 230, polyacrylamide 150, Nano-meter SiO_22105。
Embodiment 4
A kind of medical sewage inorganic agent for preventing carcinogen, it is composed of the following components by weight:Zinc acetate 110th, super calcium oxide 360, polyacrylamide 125, Nano-meter SiO_2296。
Embodiment 5
A kind of preparation method for the medical sewage inorganic agent for preventing carcinogen:
S1, by weight, 400 parts of super calcium oxide, 60 parts of polyacrylamides are added into kneaders, it is 3.5 small to mediate processing When, it is stand-by;
S2,78 parts of Nano-meter SiO_2s are added in said mixture2, 1.5h is mediated in stirring, stand-by;
S3,53 parts of zinc acetates are added, stirring mediates 1.5h, obtains waste water treating agent.
Stirring kneading process uses kneader.Number is parts by weight.
Embodiment 6
A kind of preparation method for the medical sewage inorganic agent for preventing carcinogen:
S1, by weight, 200 parts of super calcium oxide, 185 parts of polyacrylamides are added into kneaders, 2 hours is processed, treats With;S2,67 parts of Nano-meter SiO_2s are added in said mixture2, 1h is mediated in stirring, stand-by;
S3,140 parts of zinc acetates are added, stirring mediates 1h, obtains waste water treating agent.
Stirring kneading process uses kneader.Number is parts by weight.
Embodiment 7
A kind of preparation method for the medical sewage inorganic agent for preventing carcinogen:
S1, by weight, 310 parts of super calcium oxide, 100 parts of polyacrylamides are added into kneaders, process 1.5 hours, It is stand-by;S2,128 points of Nano-meter SiO_2s are added in said mixture2, 2.5h is mediated in stirring, stand-by;
S3,91 parts of zinc acetates are added, stirring mediates 2.5h, obtains waste water treating agent.
Stirring kneading process uses kneader.Number is parts by weight.
Embodiment 8
A kind of medical sewage disinfection treatment method for preventing carcinogen, including inorganic agent preparation and add, three Level filtration system, contact sterilizing system three digest journals, it is characterized in that step is as follows:
1) sewage-treating agent is prepared:
1. weigh following component according to parts by weight:Zinc acetate 155, super calcium oxide 185, polyacrylamide 200, nanometer SiO2122, it is stand-by;
2. the super calcium oxide weighed, polyacrylamide are added into kneader, 1 hour is processed;
The Nano-meter SiO_2 weighed is added in said mixture2, stirring kneading 1h;
Then the zinc acetate weighed is added, stirring mediates 1h, obtains waste water treating agent, stand-by;
2) sewage disposal is carried out in accordance with the following steps:Medical waste water is discharged into drainpipe, drainpipe after adding sewage-treating agent It is upper that the chlorination mouth that is connected with chlorinating machine is set, carried out disinfection with chlorinating machine addition solutions of chlorine, the waste water of addition inorganic agent and chlorine according to It is secondary to enter coarse filter, middle filter, fine filter filtering;Waste water is 10m from chlorination mouth to the range ability of fine filter delivery port, operation 9 minutes time;Sampled from fine filter delivery port, observe its colourity with chlorine residue colorimetric method, adjust the addition of chlorinating machine, make remaining Chlorine index meets relevant criterion;The content of bacterium in sewage is detected, increases and decreases the injected volume of sewage-treating agent, index is met correlation Standard, sewage qualified discharge.
The chlorinating machine that chlorination uses, provided by Beijing Tong Run sources electromechanical technology co., Ltd, address:Worship Beijing Literary area's Wide Channel Gate neck row International Building 1-2-1705.The key technical indexes:* chlorine dosage 0-1kg/H, 0-2kg/H, 0-4kg/H, 0- 10kg/H* has chlorine dosage maximum 20kg/H water sprayers, plate type flow rate meter.
Embodiment 9
A kind of medical sewage disinfection treatment method for preventing carcinogen, including inorganic agent preparation and add, three Level filtration system, contact sterilizing system three digest journals, it is characterized in that step is as follows:
1) sewage-treating agent is prepared:
1. weigh following component according to parts by weight:Zinc acetate 120, super calcium oxide 355, polyacrylamide 187, nanometer SiO2100, it is stand-by;
2. the super calcium oxide weighed, polyacrylamide are added into kneader, 1.5 hours are processed;
The Nano-meter SiO_2 weighed is added in said mixture2, stirring kneading 1h;
Then the zinc acetate weighed is added, stirring mediates 2h, obtains waste water treating agent, stand-by;
2) sewage disposal is carried out in accordance with the following steps:Sewage-treating agent is dissolved in solutions of chlorine first;Medical waste water is discharged into Water pipe, the chlorination mouth being connected with chlorinating machine is set, the solutions of chlorine that sewage-treating agent has been dissolved with chlorinating machine addition enters on drainpipe Row sterilization, the waste water for adding inorganic agent and solutions of chlorine sequentially enter coarse filter, middle filter, fine filter filtering;Waste water is from chlorination mouth Range ability to fine filter delivery port is 8m, run time 8 minutes;Sample from fine filter delivery port, seen with chlorine residue colorimetric method Its colourity is examined, adjusts the addition of chlorinating machine, its chlorine residue index is met relevant criterion;The content of bacterium in sewage is detected, is increased Subtract the injected volume of sewage-treating agent, index is met relevant criterion, sewage qualified discharge.
The chlorinating machine that chlorination uses, provided by Beijing Tong Run sources electromechanical technology co., Ltd, address:Worship Beijing Literary area's Wide Channel Gate neck row International Building 1-2-1705.The key technical indexes:* chlorine dosage 0-1kg/H, 0-2kg/H, 0-4kg/H, 0- 10kg/H* has chlorine dosage maximum 20kg/H water sprayers, plate type flow rate meter.
Embodiment 10
A kind of medical sewage for preventing carcinogen disinfects system, including inorganic agent preparation and add, three Level filtration system, contact sterilizing system three digest journals, it is characterized in that:
1) sewage-treating agent is prepared:
1. weigh following component according to parts by weight:Zinc acetate 138, super calcium oxide 305, polyacrylamide 157, nanometer SiO285, it is stand-by;
2. the super calcium oxide weighed, polyacrylamide are added into kneader, 1.5 hours are processed;
The Nano-meter SiO_2 weighed is added in said mixture2, stirring kneading 1h;
Then the zinc acetate weighed is added, stirring mediates 1h, obtains waste water treating agent, stand-by;
2) contact sterilizing system is made up of drainpipe and filter, sets inorganic agent charge door and chlorine to lead on drainage pipeline Entrance, waste water complete liquid chlorine disinfection technique in drainpipe and filter;
3) sewage disposal is carried out in accordance with the following steps:Medical waste water → addition sewage-treating agent mixing → liquid feeding chlorination → Coarse filtration → middle filter → refined filtration → sampling → qualified discharge → city planting ductwork.
Medical waste water is firstly added sewage-treating agent chlorination again, subsequently into drainpipe, by coarse filter, middle filter, Fine filter forms three-level filter system, removes SS suspensions, COD, BOD in sewage.
Coarse filter, middle filter, fine filter are connected by drainpipe, are connected to urban pipe network.
Pipeline and filter are water-tight gas leakage, can be normally along pipe drainage, but water-tight gas leakage, therefore are being arranged During water, the water of pipe ends plays sealing function, improves the Disinfection Effect of chlorine, and prevents chlorine Molecular leak.
Contact sterilizing system:Waste water is 15m from chlorination mouth to the range ability of fine filter delivery port, and run time 14 is divided Clock.
Chlorine on pipeline is passed through mouth and is connected with chlorinating machine.
Water sample is extracted from sample tap, its colourity is observed with chlorine residue colorimetric method, adjusts the addition of chlorinating machine, refer to its chlorine residue Reference symbol closes relevant criterion;The content of bacterium in sewage is detected, increases and decreases the injected volume of sewage-treating agent, index is met related mark Standard, sewage qualified discharge.
The chlorinating machine that chlorination uses, provided by Beijing Tong Run sources electromechanical technology co., Ltd, address:Worship Beijing Literary area's Wide Channel Gate neck row International Building 1-2-1705.The key technical indexes:* chlorine dosage 0-1kg/H, 0-2kg/H, 0-4kg/H, 0- 10kg/H* has chlorine dosage maximum 20kg/H water sprayers, plate type flow rate meter.
Comparability test 1:
In order to compare the amount of halogenated hydrocarbons in waste water after liquid chlorine disinfection, the research of Comparability test, specific experimental condition have been carried out It is as follows:Waste water is handled using following processing method,
1) sewage-treating agent is prepared:
1. each experimental group, the component used in control group are weighed according to parts by weight, it is stand-by;
2. the super calcium oxide weighed, polyacrylamide are added into kneader, 1 hour is processed;
The Nano-meter SiO_2 weighed is added in said mixture2, stirring kneading 1h;
Then the zinc acetate weighed is added, stirring mediates 1h, obtains waste water treating agent, stand-by;
2) sewage disposal is carried out in accordance with the following steps:Medical waste water is discharged into drainpipe, drainpipe after adding sewage-treating agent It is upper that the chlorination mouth that is connected with chlorinating machine is set, carried out disinfection with chlorinating machine addition solutions of chlorine, the waste water of addition inorganic agent and chlorine according to It is secondary to enter coarse filter, middle filter, fine filter filtering;Waste water is 15m from chlorination mouth to the range ability of fine filter delivery port, operation 15 minutes time;Sampled from fine filter delivery port, observe its colourity with chlorine residue colorimetric method, adjust the addition of chlorinating machine, make it Chlorine residue index meets relevant criterion;The content of bacterium in sewage is detected, increases and decreases the injected volume of sewage-treating agent, index is met phase Pass standard, sewage qualified discharge.
The chlorinating machine that chlorination uses, provided by Beijing Tong Run sources electromechanical technology co., Ltd, address:Worship Beijing Literary area's Wide Channel Gate neck row International Building 1-2-1705.The key technical indexes:* chlorine dosage 0-1kg/H, 0-2kg/H, 0-4kg/H, 0- 10kg/H* has chlorine dosage maximum 20kg/H water sprayers, plate type flow rate meter.
Difference is the waste water treating agent difference used.
Experimental group 1-4 waste water treating agent is respectively the prescription that embodiment 1-4 is provided.
Control group 1-4 waste water treating agent is respectively the prescription that embodiment 1-4 is provided, but zinc acetate is not contained in prescription. (also corresponding in preparation method to remove the step of adding zinc acetate and mediating)
Control group 5 is without using waste water treating agent.
Remaining condition is identical.The halogenated hydrocarbons of sampling waste in fine filter is detected, detection method is as follows:
The detection method of halogenated hydrocarbons:
1.1 instruments and reagent
1.11 instrument:HP6890GC//5972MS GC-MSs (Hewlett-Packard of the U.S.);Having electronic acquisition detector (ECD) GC214A gas chromatographs (Japanese Shimadzu);OV2101 capillary columns (25m × 0.2mm × 0.25 Λ m);HP25 quartz capillaries Post (30m × 0.25mm × 0.25 Λ mFilmThickness);Purge and trap device:Tekmar3000;Electric heating constant-temperature water-bath tank (temperature-controlled precision ± 0.5 DEG C).
1.12 reagent:Halo hydrocarbon reference material is provided by State Standard Matter Research Centre;Without halogenated hydrocarbons water by dual steaming Distilled water is placed after being boiled 30 minutes away from laboratory and is cooled to room temperature, before use, is passed through high pure nitrogen and is purged to through P&T/GC/MS Operate blank, no halogenated hydrocarbons Interference Peaks.
1.2 analysis condition Purge and trap conditions:Purge gass (high-purity helium) flow velocity 40mL/min, purge time 11min, solution 180 DEG C of eutectoid temperature, parse time 4min, 225 DEG C of baking temperature, baking time 10min.Operation condition of chromatogram:Injector temperature 200℃;Input mode is split sampling, split ratio 20: 1;Flow rate of carrier gas 1.0mL/min;Column temperature, 30 DEG C are originated, continue 2min, 1min is kept after being warming up to 70 DEG C with 3 DEG C/min;250 DEG C of chromatographic mass spectrometry transmission line temperature.Mass spectrum operation condition:EI (ion gun) 230 DEG C of temperature;109 DEG C of quadrupole rod temperature;Launching electronics energy 70eV;Multiplier electrode 1541V;45~300amu of scanning range.
1.3 analytical procedure
1.3.1HS/GC/ECD:Cumulative volume is to fill water sample in 75ml 50ml colorimetric cylinders, and logical nitrogen blows out water sample, makes Gas-liquid volume ratio is 25: 50 in colorimetric cylinder, and colorimetric cylinder is put into the instrument of electric heating constant-temperature water-bath tank 1.1 and reagent 1.1.1 instruments HP6890GC/5972MS GC-MSs (Hewlett-Packard of the U.S.);The GC214A gas chromatographs of having electronic acquisition detector (ECD) (Japanese Shimadzu);OV2101 capillary columns (25m × 0.2mm × 0.25 Λ m);HP25 quartz capillary columns (30m × 0.25mm × 0.25ΛmFilmThickness);Purge and trap device:Tekmar3000;Electric heating constant-temperature water-bath tank (temperature-controlled precision ± 0.5 ℃)。
1.1.2 reagent halo hydrocarbon reference material is provided by State Standard Matter Research Centre;Without halogenated hydrocarbons water by dual steaming Distilled water is placed after being boiled 30 minutes away from laboratory and is cooled to room temperature, before use, is passed through high pure nitrogen and is purged to through P&T/GC/MS Operate blank, no halogenated hydrocarbons Interference Peaks.1.2 analysis condition Purge and trap conditions:Purge gass (high-purity helium) flow velocity 40mL/min, Purge time 11min, 180 DEG C of resolution temperature, parse time 4min, 225 DEG C of baking temperature, baking time 10min.Chromatographic run Condition:200 DEG C of injector temperature;Input mode is split sampling, split ratio 20: 1;Flow rate of carrier gas 1.0mL/min;Column temperature, rise Begin 30 DEG C, continue 2min, 1min is kept after being warming up to 70 DEG C with 3 DEG C/min;250 DEG C of chromatographic mass spectrometry transmission line temperature.Mass spectrum is grasped Make condition:230 DEG C of EI (ion gun) temperature;109 DEG C of quadrupole rod temperature;Launching electronics energy 70eV;Multiplier electrode 1541V;Scanning 45~300amu of scope.1.3 analytical procedure 1.3.1HS/GC/ECD:Cumulative volume is to fill water sample in 75ml 50ml colorimetric cylinders, Logical nitrogen blows out water sample, and it is 25: 50 to make gas-liquid volume ratio in colorimetric cylinder, and colorimetric cylinder is put into electric heating constant-temperature water-bath tank (40 DEG C) Middle balance 40min, extract head space gases and carry out chromatography.1.3.2P&T/GC/MS:Confirm that the temperature of Purge and trap device is less than After 30 DEG C, take 5mL water samples inject sample cell, after being terminated with helium purge, in the case where GC/MS is in ready states, sample parse into Enter chromatographic column, GC/MS analysis programs start.After all components all outflow chromatographic columns, stop mass spectrometric data collection.
Group halogenated hydrocarbons Chloroform μ g/L Carbon tetrachloride μ g/L One bromodichloromethane μ g/L
Experimental group 1 32.2 3.7 17.8
Experimental group 2 32.8 3.5 16.4
Experimental group 3 34.1 3.2 17.8
Experimental group 4 34.5 3.8 18.1
Control group 1 98.6 23.4 78.6
Control group 2 97.4 22.8 81.4
Control group 3 95.8 25.9 79.6
Control group 4 96.7 25.7 80.3
Control group 5 143.7 56.7 107.5
Table 1
In table 1, experimental group 1-4 is compared pair with control group 5, illustrates that inorganic agent provided by the invention can substantially reduce waste water In the carcinogenic substance such as chlorohydrocarbon.
Experimental group 1-4 is compared pair with control group 1-4, illustrates that zinc acetate and other components complement each other, and is suppressing halogenated hydrocarbons Aspect produces good effect.
Control group 1-4 is compared pair with control group 5, illustrates that other components provided by the invention also can be in terms of halogenated hydrocarbons be suppressed Produce good effect.
Comparability test 2:
The discharge of wastewater situation up to standard in above-mentioned contrast test 1 is also have detected, the therapeutic machine formulated according to China in 2005 Structure pollution discharge standard GB18466-2005) in《Comprehensive hospitals and other medical institutions' water pollution emission limits (annual average)》Relevant regulations detected, from floss hole extract water sample detected, data are:
Table 2
Note:It is more than 20 DEG C under temperature that moss, which blocks, is run 30 days, checks that whetheing there is moss and filter in filter has Without blocking.Control group 5 grows a large amount of mosses because without waste water treating agent is used in filter, block filter, influence to filter Device normal work.Equipment corrosion is run 30 days, in control group 5 to check the corrosion situation of metal parts in pipeline and filter There is many places corrosion.
Comparability test 3:
Medical waste water inorganic agent prepared by embodiment 5,6,7 is respectively labeled as experimental group 1,2,3.Control group is set, it is right Identical component in embodiment 5,6,7 is respectively adopted according to group 1,2,3, but preparation technology is different, the preparation technology of control group 1,2,3 For each component is mixed, add and mediate machining, mediate total time phase of the process time respectively with the kneading processing of embodiment 5,6,7 Deng.
Table 3
The statistics for the deliquescence number of days being statically placed in air is become sticky according to particle surface, and two particles can bond together As standard.
It the above is only the preferred embodiment of the present invention, it is noted that above-mentioned preferred embodiment is not construed as pair The limitation of the present invention, protection scope of the present invention should be defined by claim limited range.For the art For those of ordinary skill, without departing from the spirit and scope of the present invention, some improvements and modifications can also be made, these change Enter and retouch and also should be regarded as protection scope of the present invention.

Claims (10)

1. a kind of medical sewage disinfection treatment method for preventing carcinogen, including inorganic agent preparation and add, three-level Filtration system, contact sterilizing system three digest journals, it is characterized in that step is as follows:
1) sewage-treating agent is prepared:
1. weigh following component according to parts by weight:Zinc acetate 40-160, super calcium oxide 150-450, polyacrylamide 50-200, receive Rice SiO260-130, it is stand-by;
2. S1, by super calcium oxide, polyacrylamide add kneader, process 1-4 hour, it is stand-by;
S2, Nano-meter SiO_2 is added in said mixture2, 1~3h is mediated in stirring, stand-by;
S3, zinc acetate is added, stirring mediates 1~3h, obtains waste water treating agent, stand-by;
2) sewage disposal is carried out in accordance with the following steps:Medical waste water → addition sewage-treating agent mixing → liquid feeding chlorination → coarse filtration → middle filter → refined filtration → sampling → qualified discharge → city planting ductwork.
2. a kind of medical sewage disinfection treatment method for preventing carcinogen according to claim 1, it is characterized in that When hospital sets waste water container, inorganic agent charge door and chlorine is set to be passed through mouth in waste water container.
3. a kind of medical sewage disinfection treatment method for preventing carcinogen according to claim 1, it is characterized in that When hospital is not provided with waste water container, inorganic agent is added before medical waste water enters drainpipe, sets chlorine to be passed through mouth on pipeline.
4. a kind of medical sewage disinfection treatment method for preventing carcinogen according to claim 1, it is characterized in that Inorganic agent charge door and chlorine is set to be passed through mouth on waste pipe.
5. a kind of medical sewage disinfection treatment method for preventing carcinogen according to claim 1-4, its feature It is that the present invention does not have to set the containers such as buffer pool, regulating reservoir, sterilization pool, cistern.
6. a kind of medical sewage disinfection treatment method for preventing carcinogen according to claim 1-5, its feature It is that medical waste water is firstly added sewage-treating agent chlorination again, subsequently into drainpipe and filter, waste water is in drainpipe and mistake Complete to use liquid chlorine disinfection in filter.
7. a kind of medical sewage disinfection treatment method for preventing carcinogen according to claim 1-6, its feature It is that contact sterilizing system is made up of drainpipe and filter.
8. a kind of medical sewage disinfection treatment method for preventing carcinogen according to claim 1-7, its feature It is pipeline and filter is water-tight gas leakage, can be normally along pipe drainage, but water-tight gas leakage, therefore in draining, The water of pipe ends plays sealing function, improves the Disinfection Effect of chlorine, and prevents chlorine Molecular leak.
9. a kind of medical sewage disinfection treatment method for preventing carcinogen according to claim 1-8, its feature Be contact sterilizing system length without especially extending, designed according to the maximum hour sewage quantity of medical waste water, ensure it in pipe The residence time can reach the residence time required by medical waste water treatment technology guide in road and filter, contact sterilizing system Length is pipeline and filter total length of the chlorination mouth to sample tap, and the only time of three-stage filtration completes to disappear enough Poison.
10. a kind of medical sewage disinfection treatment method for preventing carcinogen according to claim 1-9, including place Manage the preparation of agent and add, three-level filter system, contact sterilizing system three digest journals, it is characterized in that step is as follows:
1) sewage-treating agent is prepared:
1. weigh following component according to parts by weight:Zinc acetate 155, super calcium oxide 185, polyacrylamide 200, Nano-meter SiO_22122, It is stand-by;
2. the super calcium oxide weighed, polyacrylamide are added into kneader, 1 hour is processed;
The Nano-meter SiO_2 weighed is added in said mixture2, stirring kneading 1h;
Then the zinc acetate weighed is added, stirring mediates 1h, obtains waste water treating agent, stand-by;
2) sewage disposal is carried out in accordance with the following steps:Medical waste water is discharged into drainpipe after adding sewage-treating agent, is set on drainpipe The chlorination mouth being connected with chlorinating machine is put, adding solutions of chlorine with chlorinating machine carries out disinfection, and the waste water for adding inorganic agent and chlorine enters successively Enter coarse filter, middle filter, fine filter filtering;Waste water is 10m from chlorination mouth to the range ability of fine filter delivery port, run time 9 minutes;Sampled from fine filter delivery port, observe its colourity with chlorine residue colorimetric method, adjust the addition of chlorinating machine, refer to its chlorine residue Reference symbol closes relevant criterion;The content of bacterium in sewage is detected, increases and decreases the injected volume of sewage-treating agent, index is met related mark Standard, sewage qualified discharge.
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