CN109506238A - A kind of MEDICAL WASTE TREATMENT technique - Google Patents
A kind of MEDICAL WASTE TREATMENT technique Download PDFInfo
- Publication number
- CN109506238A CN109506238A CN201811286818.9A CN201811286818A CN109506238A CN 109506238 A CN109506238 A CN 109506238A CN 201811286818 A CN201811286818 A CN 201811286818A CN 109506238 A CN109506238 A CN 109506238A
- Authority
- CN
- China
- Prior art keywords
- fenton reagent
- sterilizing
- waste
- fenton
- incinerator
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
- F23G5/02—Incineration of waste; Incinerator constructions; Details, accessories or control therefor with pretreatment
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
- F23G5/02—Incineration of waste; Incinerator constructions; Details, accessories or control therefor with pretreatment
- F23G5/033—Incineration of waste; Incinerator constructions; Details, accessories or control therefor with pretreatment comminuting or crushing
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
- F23G5/08—Incineration of waste; Incinerator constructions; Details, accessories or control therefor having supplementary heating
- F23G5/12—Incineration of waste; Incinerator constructions; Details, accessories or control therefor having supplementary heating using gaseous or liquid fuel
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
- F23G5/44—Details; Accessories
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G7/00—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals
- F23G7/04—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of waste liquors, e.g. sulfite liquors
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Processing Of Solid Wastes (AREA)
- Apparatus For Disinfection Or Sterilisation (AREA)
Abstract
The present invention relates to dangerous field of solid waste treating technology, more specifically a kind of MEDICAL WASTE TREATMENT technique, existing incineration treatment technology is also easy to produce secondary pollution.The present invention provides a kind of MEDICAL WASTE TREATMENT techniques, including clinical waste 1) is broken into graininess or bulk；2) Fenton reagent is configured；3) Fenton reagent is added in having broken pure clinical waste and heats；4) it is heated to 100-125 DEG C, and keeps 10-40 minutes sterilization times under 0-0.23MPa pressure；5) after sterilizing, clinical waste is separated with Fenton reagent waste liquid；6) Fenton reagent waste liquid is carried out to atomizing burning disposal in incinerator；7) clinical waste after separating in step 5 is dried, and sterilizing exhaust gas is discharged into incinerator and carries out burning disposal, energy efficient process clinical waste, moreover it is possible to reduced the discharge of harmful substance, reduce the pollution to environment.
Description
Technical field
The present invention relates to dangerous field of solid waste treating technology, more specifically a kind of MEDICAL WASTE TREATMENT work
Skill.
Background technique
Clinical waste refers to that medical and health organization generated in medical treatment, disease-prevention or healthcare and other correlated activations has
Directly or indirectly infectious, toxicity and other harmfulness waste.A large amount of pathogenic microorganisms may be contained in clinical waste
And harmful chemical, or even radioactivity and damaging agents are had, therefore, if MEDICAL WASTE TREATMENT is improper, it may cause
The health such as transmission, polluted-water and environmental problem.
For this purpose, China has promulgated the 380th command of State Council " hospital Waste Management regulations ", to the collection of clinical waste, point
Class, storage, transport, disposition and supervision have carried out specific standardized management.Regulations clear stipulaties clinical waste is by medical institutions
It is responsible for collecting classification, is responsible for transporting and be centrally disposed by the various regions foundation center of centrally disposing.
The processing technique that useless disposition center uses is cured in various regions at present, and mainly incineration method (accounting for 50%) and high-temperature steam method (accounts for
44%).Incineration method is the process decomposed, carbonized to clinical waste using high-temperature oxidation.Incineration method useless to doctor can carry out
Largely volume reduction, treatment effeciency is high, is widely used by each centralized processing center.However, due to curing useless complicated component, it is existing
Burning process to smashed by directly curing useless particle and carrying out burning disposal, easily because burning insufficient or doctor in burning process
Useless self character, generates harmful substance, is discharged into air with exhaust gas and generates secondary pollution, such as dioxin to ambient enviroment.
In recent years, the high temperature steam treatment method that doctor gives up gradually is widely applied.High-temperature steam method is to utilize high temperature
Steam, the technique that high-temperature sterilization is carried out to clinical waste, the doctor after sterilizing are useless as domestic rubbish disposal.Though high-temperature steam work
Skill useless to doctor can carry out batch processing, however technical process can generate more complicated chemical substance and stink discharge, to week
Surrounding environment affects greatly.
Summary of the invention
The technical problem to be solved by the present invention is to overcome defect existing in the prior art, provide at a kind of clinical waste
Science and engineering skill, can efficient process clinical waste, moreover it is possible to reduce the discharge of harmful substance, reduce the pollution to environment.
To achieve the above object, the present invention is achieved by the following technical programs: a kind of MEDICAL WASTE TREATMENT technique, packet
Include step:
1) clinical waste is broken into graininess or bulk；
2) Fenton reagent is configured；
3) Fenton reagent is added in having broken pure clinical waste and heats；
4) it is heated to 100-125 DEG C, and keeps 10-40 minutes sterilization times under 0-0.23MPa pressure；
5) after sterilizing, clinical waste is separated with Fenton reagent waste liquid；
6) Fenton reagent waste liquid is carried out to atomizing burning disposal in incinerator；
7) clinical waste after separating in step 5 is dried, and sterilizing exhaust gas is discharged into incinerator and is carried out at burning
Reason.
By adopting the above technical scheme, it is mixed after clinical waste being crushed with Fenton reagent, Fenton's reaction is utilized to remove medical treatment
Organic pollutant difficult to degrade in waste carries out high-temperature sterilization while oxidative degradation, eliminates the pathogen in clinical waste；
It flash evapn and burns when the Fenton reagent waste water utilization compressed air repeatedly used enters incinerator in spraying mode,
Waste liquid is melted into countless fine droplets in spray process, so that burning is more abundant, can be reduced and generates because of burning insufficient
Harmful substance, and then reduce secondary pollution to environment.
The further preferred scheme of the present invention are as follows: in step 5), the Fenton reagent waste liquid recycling that will be isolated, in step
The new Fenton reagent of rapid 2) middle configuration, Fenton reagent waste liquid recycling number is 1 to 10 times；
In step 6, it will make to reuse multiple Fenton reagent waste liquid and carry out atomizing burning disposal in incinerator.
So operation configures new sweet smell using Fenton reagent waste liquid using recycling in numbers range limited
Pause reagent, can increase the utilization rate of Fenton reagent, reduces and burns cost.The available number of Fenton reagent and accumulative degradation medical treatment
The content of pollutant is negatively correlated related in waste.
The further preferred scheme of the present invention are as follows: in step 2, the Fenton reagent used for the first time is by ferrous sulfate hydrate and mistake
Oxidation aqueous solution of hydrogen is formulated, and wherein ferrous sulfate concentration is 0.1-10ppm(W/W), concentration of hydrogen peroxide 0.5-10%
(W/W), and with acetic acid by its pH value adjustment to 4-5；Every kilogram of doctor to be processed is useless need to configure 2-6 kilograms of Fenton reagent.Medical treatment
The content of pollutant is more in waste, and the hydrogen peroxide for needing to participate in degradation is more, participates in the demand of the ferrous ion of catalysis
It is consequently increased.
The further preferred scheme of the present invention are as follows: in step 2, the Fenton reagent used for the first time is by ferrous sulfate hydrate and mistake
Oxidation aqueous solution of hydrogen is formulated, and wherein ferrous sulfate concentration is 1-8ppm(W/W), concentration of hydrogen peroxide 1-7%(W/W), and
With acetic acid by its pH value adjustment to 4-5；Every kilogram of doctor to be processed is useless need to configure 3-4 kilograms of Fenton reagent.
The further preferred scheme of the present invention are as follows: in step 2, the Fenton reagent of recycling is given up by the Fenton reagent isolated
Liquid and aqueous hydrogen peroxide solution configure, and with acetic acid by its pH value adjustment to 4-5.
By the Fenton reagent waste liquid recycling during last time MEDICAL WASTE TREATMENT, new Fenton reagent is configured.Due to sweet smell
Reaction ferrous ions be as catalyst participate in reaction process, therefore to Fenton reagent waste liquid recycling during,
Actually to the recycling of the ferrous ion in Fenton reagent waste liquid, and the burning number of waste liquid is reduced, it is energy saving, subtract
Few environmental pollution.
The further preferred scheme of the present invention are as follows: in step 4), the heating temperature and sterilization time when sterilizing are negatively correlated；It goes out
For heating temperature when bacterium at 100 DEG C, sterilization time is 40 minutes；At 125 DEG C, sterilization time is heating temperature when sterilizing
10 minutes.
The further preferred scheme of the present invention are as follows: in step 4), when sterilizing is carried out to half, into the clinical waste for break essence
Hydrogen peroxide is added, hydrogen peroxide additive amount is 0.5-2 times of the additive amount of hydrogen peroxide when configuring Fenton reagent, to supplement sweet smell
Pause the hydrogen peroxide consumed in reacting,
The further preferred scheme of the present invention are as follows: in the heating process and sterilization process of step 4), ceaselessly disturb clinical waste with
The mixture that Fenton reagent is formed.Perturbation process comes into full contact with clinical waste with Fenton reagent, and pathogen and Fenton is accelerated to try
Agent contact sterilizing.
The further preferred scheme of the present invention are as follows: the process container for placing clinical waste particle is equipped with for for Fenton reagent
In the pipeline of process container internal circulation flow and the inlet and outlet of pipeline are communicated with process container；In sterilizing, Fenton reagent is logical
The pipeline is crossed to enter in the container from process container outer wall tangential direction；The process circulated achievees the effect that disturbance, stirring,
Pathogen is accelerated to contact sterilizing with Fenton reagent；And enter from process container outer wall tangential direction can be in the container for Fenton reagent
The solidliquid mixture formation whirlpool in container is allowed preferably to reach stirring purpose.
The further preferred scheme of the present invention are as follows: in step 6) and step 7), the internal operating temperature of incinerator is in 850-
1200℃；For Fenton reagent waste liquid by flash evapn and burning after entering incinerator by spraying, it is direct that sterilizing exhaust gas is discharged into incinerator
Burning, the high-temperature gas generated after the burning of at least one of the two is all larger than 2S in burning residing time in furnace and high-temperature gas exists
It is cooled to 250 DEG C or less rapidly through shower water when coming out of the stove.
By adopting the above technical scheme, in 850-1200 DEG C of stop 2S or more, dioxin can be made to decompose, and to furnace gases out
Fast cooling is generated to 250 DEG C hereinafter, can be avoided dioxin again.
In conclusion the invention has the following advantages: crush clinical waste carry out oxidative degradation again, improve sterilizing
Efficiency keeps degradation, sterilizing more abundant；Waste reaction solution is recycled for multiple times, and reduces burning amount needed for unit cures useless treating capacity, drop
Low energy consumption, reduces atmosphere pollution；Waste liquid atomization after reaction is burned, burning is sufficiently not likely to produce secondary pollution.
Detailed description of the invention
Fig. 1 is the system structure diagram using the MEDICAL WASTE TREATMENT technique.
In figure: 1, being crushed roll；2, loading hopper；3, sliding rail；4, process container；41, feed inlet；42, discharge port；43, it filters
Plate；44, filter；45, gas-liquid separator；5, oxidation solution allocates container；51, hydrogen peroxide hold-up tank；52, ferrous hold-up tank；
53, high pressure charging circulating pump；54, check valve；55, heater；6, incinerator；61, air compression plant；7, cooling pipe；8,
Absorption tower；81, filler；82, catch basin；83, the first spray head；84, the second spray head；85, chimney；86, high-temperature blower；9,
Vacuum pump.
Specific embodiment
Below in conjunction with attached drawing, invention is further described in detail.
The present embodiment is only explanation of the invention, is not limitation of the present invention, and those skilled in the art exist
It can according to need the modification that not creative contribution is made to the present embodiment after reading this specification, but as long as in the present invention
Scope of the claims in all by the protection of Patent Law.
The present invention is a kind of MEDICAL WASTE TREATMENT technique, comprising steps of
1) clinical waste is broken into graininess or bulk；
2) Fenton reagent is configured；
3) Fenton reagent is added in having broken pure clinical waste and heats；
4) it is heated to 100-125 DEG C, and keeps 10-40 minutes sterilization times under 0-0.23MPa pressure；
5) after sterilizing, clinical waste is separated with Fenton reagent waste liquid；The Fenton reagent waste liquid recycling that will be isolated is used for
New Fenton reagent is configured in step 2, Fenton reagent waste liquid recycling is scrapped after being 2 to 10 times；
6) Fenton reagent waste liquid that is recycling is multiple and scrapping carries out spraying burning disposal in incinerator；
7) negative pressure drying processing is carried out to the clinical waste after separating in step 5, and sterilizing exhaust gas is discharged into incinerator and is burnt
Burning processing.
In step 2, the Fenton reagent used for the first time is formulated by ferrous sulfate hydrate and aqueous hydrogen peroxide solution,
Wherein ferrous sulfate concentration is 0.1-100ppm(W/W), concentration of hydrogen peroxide 0.5-20%(W/W), and with acetic acid by its pH value
Adjust 4-5.Fenton reagent amount of preparation is that every kilogram of doctor to be processed is useless, prepares 2-6 kilograms of Fenton reagent.
The Fenton reagent of recycling is configured by the Fenton reagent waste liquid and aqueous hydrogen peroxide solution isolated, and with vinegar
Acid is by its pH value adjustment to 4-5.Fenton reagent waste liquid recycling 1 to 10 times.
In step 4), the heating temperature and sterilization time when sterilizing are negatively correlated；Heating temperature when sterilizing is at 100 DEG C
When, sterilization time is 40 minutes；For heating temperature when sterilizing at 125 DEG C, sterilization time is 10 minutes.
When sterilizing progress to half, hydrogen peroxide is added in pure clinical waste to supplement peroxide in Fenton's reaction to having broken
Change the consumption of hydrogen.Hydrogen peroxide additive amount is 0.5-2 times of the additive amount of hydrogen peroxide when configuring Fenton reagent, midway addition
Concentration of hydrogen peroxide is equal with the concentration of hydrogen peroxide being added when configuration Fenton reagent.
In the heating process and sterilization process of step 4), the mixing that clinical waste and Fenton reagent are formed ceaselessly is disturbed
Object.Place clinical waste particle process container be equipped with for for Fenton reagent in the pipeline of process container internal circulation flow and
The inlet and outlet of pipeline are communicated with process container；In sterilizing, Fenton reagent passes through the pipeline from process container outer wall tangent line side
Into the entrance container.
In step 6) and step 7), the internal operating temperature of incinerator is at 850-1200 DEG C；Fenton reagent waste liquid is spraying
It flash evapn and burns after into incinerator, sterilizing exhaust gas is discharged into incinerator and directly burns, and produces after at least a kind of burning of the two
Raw high-temperature gas is all larger than 2S in burning residing time in furnace and high-temperature gas is cooled to rapidly when coming out of the stove through shower water
250 DEG C or less.
As shown in Figure 1, being a kind of MEDICAL WASTE TREATMENT system, it is useless which applies above-mentioned medical treatment
Object treatment process, including main process container 4, oxidation solution allocates container 5, incinerator 6 and cooling pipe 7.
Process container 4, for in clinical waste pollutant and pathogen degraded and sterilized, be equipped with heating dress
It sets.Oxidation solution allocates container 5 is connected for configuring Fenton reagent, between process container 4 through feed pipe.Incinerator 6,
For burning remaining sterilizing exhaust gas in Fenton's reaction liquid and container, communicated with process container 4 or oxidation solution allocates container 5.It is cold
But pipeline 7 are connected with 6 exhaust outlet of incinerator for being quickly cooled down the high-temperature gas being discharged from incinerator 6, inside set spray head.
Process container 4 is reaction kettle, and reaction kettle upper end is equipped with feed inlet 41, and side is equipped with discharge port 42, feed inlet 41
Sealing cover is equipped with discharge port 42.Above feed inlet 41 be equipped with crushing device, crushing device include loading hopper 2 and at least a pair
For clinical waste to be ground into the broken roll 1 of particle, it is crushed roll 1 and is set in loading hopper 2.
The quick closedown sealing cover after charging for convenience, reaction kettle top are equipped with a pair of of sliding rail 3, and 3 one end of sliding rail extends
To discharge port 42, loading hopper 2 is slided by pulley on sliding rail 3.In charging, the sealing cover on feed inlet 41 is opened, charging
Bucket 2 is moved to the surface of feed inlet 41, and crushing device is started to work again.
One hydrogen peroxide hold-up tank 51 of pipeline connection and a ferrous hold-up tank 52 are distinguished in oxidation solution allocates container 5；Two storages
It deposits and is equipped with valve on the pipeline that tank is connected with oxidation solution allocates container 5 and for adjusting uninterrupted in charging, facilitating control
The charging metering pump of additive capacity processed.
The high pressure charging circulating pump 53 for being pumped into Fenton reagent in reaction kettle is equipped in feed pipe, on feed pipe
Equipped with the heater 55 for being heated to liquid in pipeline；Check valve is equipped between high pressure charging circulating pump 53 and reaction kettle
54, when high pressure charging circulating pump 53 works, liquid successively flows into process container 4 through high pressure charging circulating pump 53 and check valve 54
It is interior.
Reaction kettle is cylindrical, and bottom is equipped with filter plate 43 in reaction kettle, and reaction kettle bottom surface is connected with threeway reflux line, threeway
The entrance of reflux line is connected with reactor bottom, and an outlet of threeway reflux line is connected to through high pressure charging circulating pump 53 to be fed
Pipeline simultaneously realizes that reflux, another outlet of threeway reflux line are communicated with oxidation solution allocates container 5 with reaction kettle, threeway return pipe
Road is equipped with filter 44 and several valves；The outlet of feed pipe is located on the annular sidewall of reaction kettle and the ring with reaction kettle
Shape side wall is tangent.
Reaction kettle is equipped with condensation pipe, and condensation pipe Single port is communicated with reaction kettle upper end, and another port is equipped with gas-liquid
The liquid-phase outlet of separator 45, gas-liquid separator 45 is connected with oxidation solution allocates container 5, the gaseous phase outlet of gas-liquid separator 45 with
Incinerator 6 is connected.The sterilizing exhaust gas (residual gas) in container is drained after the completion of sterilizing for convenience, gas-liquid separator 45
The vacuum pump 9 for vacuumizing is additionally provided between gas circuit outlet and incinerator 6.9 gas outlet of vacuum pump is also connected with incinerator 6.
Useless residue is cured while vacuumizing very fast drying and to cool down because of negative pressure.
Incinerator 6 is externally connected with for providing the burner of fire source kept burning day and night into furnace, which can be
Fuel oil or natural gas.One end is equipped with the sterilizing waste liquid sprayer of compressed air assisted atomization, sterilizing in 6 combustion chamber of incinerator
Waste liquid sprayer is connected with air compression plant 61.Exhaust gas is passed directly into the combustion chamber of incinerator 6 after sterilizing, and Fenton's reaction is useless
Liquid enters combustion chamber, combustion-supporting lower generation big calorimetric of the combustible in burner ever-burning flame through compressed air after nozzle is atomization
Amount makes the internal temperature of 6 combustion chamber of incinerator be increased to 850-1200 DEG C, the quickly oxidation point at this temperature of all combustibles
Solution.The supplement of burning room air, by oxygenating blower air blast, after being heated to certain temperature by plug for outlet heat exchanger, through wind
Pipe is blown into combustion chamber with outer circle tangential direction, causes spiral rotary wind in combustion chamber, together with burning material in furnace
It is moved while rotation centered on trunnion axis to combustion chamber plug for outlet, guarantees that comburant is greater than 2 seconds in the combustion chamber residence time.
Cooling pipe 7 is internally provided with 1-6 the second spray heads 84, the high-temperature tail gas water spray of Xiang Guandao, so that high temperature tail
Gas cools down rapidly.
7 outlet end of cooling pipe is equipped with absorption tower 8, is equipped with filler 81 in absorption tower 8, filler 81 can be Raschig ring
Or similar filler, to increase the contact area of high-temperature gas and water in absorption tower 8, to increase the cooling to high-temperature gas
Effect.There is catch basin 82 below filler 81, the first spray head 83 is equipped with above filler 81, catch basin 82 is distinguished through a water pump
It is connect with the first spray head 83 and 84 pipeline of the second spray head.Cooling water can so be recycled, save water resource.Catch basin
It is interior to be equipped with automatic tank gauge, it is automatically replenished by running water pipe.
8 exit of absorption tower is equipped with chimney 85, and the high-temperature blower for accelerating exhaust is equipped between chimney 85 and absorption tower 8
86。
Embodiment 1:
Waste is managed because curing the useless country that belongs to, it is unavailable.Effectiveness of embodiment of the present invention verifying, with reference to health industry standard WS310
It designs with WS/T367 standard, is verified in above-mentioned MEDICAL WASTE TREATMENT system using common rubbish.
About 180 kilograms of common compostings are taken to be added step-wise in loading hopper 2, waste is broken into particle through broken roll 1
It is fallen into after (bulk) or small pieces in process container 4.During falling into, it is mixed into 4 bottom of process container, corner respectively with complete
The bacillus stearothermophilus bionidicator of cotton operation towel packaging bag packaging.
In hydrogen peroxide hold-up tank 51, the hydrogenperoxide steam generator that 30L concentration is 50% (w/w) is injected by charge pump
Oxidation solution allocates container 5.In ferrous hold-up tank 52,3 grams of green vitriols are dissolved in 10L water, are infused by charge pump
Enter in oxidation solution allocates container 5, and water is added to 600L.It is arrived simultaneously with the solution pH value that acetic acid adjusts oxidation solution allocates container 5
4-5。
In addition to blow valve (blow valve is arranged on the gaseous phase outlet of gas-liquid separator 45), it is each out to close process container 4
Entrance and valve, start feed pump 53 and Fenton reagent is injected in process container 4 in heater 55, the side Bian Jiare, try to Fenton
After agent injection, blow valve is closed, opens the valve on filter 44, and cutoff high feed cycle pump 53 holds with oxidation solution allotment
Valve between device 5 opens the valve that high pressure charging circulating pump 53 is directly arrived on threeway reflux line.Due in process container 4
Being filled with Fenton reagent, temperature rises due to heating simultaneously, therefore the air pressure in process container 4 increases, on opening filter 44
Valve when, the Fenton reagent in process container 4, which is subject to processing the effect of 4 air pressure inside of container and enters high pressure charging through reflux line, to follow
Ring pump 53 again constantly refills oxidation solution in process container 4.For reagent solution in constantly cyclic process, temperature is continuous
Raising.
Meanwhile during circulation, since the outlet of feed pipe and the annular sidewall of reaction kettle are tangent so that from into
The Fenton reagent that pipe material exports out forms whirlpool in reaction kettle, then enters reflux line from whirlpool bottom, and waste
Grain is constantly overturn during just rotating again with whirlpool, is played the role of stirring (namely disturbance), is accelerated Fenton's reaction
Process.
With heating process, when temperature is stepped up to 100 degree in container, keeps the temperature and oxidation solution recycles 20 minutes, (following
Hydrogen peroxide, which is added, to oxidation solution allocates container 5 during ring is used as supplement) hydrogen peroxide charge pump is closed towards oxidation solution
The valve of allocates container 5 opens the valve that hydrogen peroxide is directly injected into return pipe, and 30L concentration is directly injected into return pipe is
The hydrogenperoxide steam generator of 50% (w/w) is continued soak cycles 20 minutes with making up the consumption of hydrogen peroxide during Fenton's reaction.
Start incinerator 6, starts burner, until the normal operating conditions of 850-1200 DEG C of temperature.
Soak cycles after twenty minutes, stop heating.Compressed air is injected into process container 4, the Fenton after reaction is anti-
Liquid is answered all to be discharged into oxidation solution allocates container 5 temporary.After whole oxidation solutions enter oxidation solution allocates container 5, it is empty to close compression
Gas closes 44 early gate of filter.The valve that exhaust gas is directly entered incinerator 6 is closed, starts vacuum pump 9, before opening vacuum pump 9
Late gate vacuumizes process container 4.With the raising of vacuum degree, moisture evaporation in useless residue is cured inside process container,
Temperature decline.When temperature is lower than 50 DEG C, 9 front and back valve of vacuum pump is closed, closes 4 top vent valve of process container, is opened useless
Gas is directly entered the valve of incinerator 6, opens 9 front and back valve of vacuum pump.Open 4 top blow valve of process container, opening processing
4 discharge port 42 of container cures useless residue pack after taking out sterilizing, therefrom chooses the bacillus stearothermophilus microbial administration of packaging
Object is placed 56 DEG C ± 2 DEG C and is cultivated 7 days, observes cultivation results.Judgement sterilizing is qualified.
The exhaust gas that above-mentioned sterilization treatment container 4 is drawn, is discharged into incinerator 6 and burns.Incinerator 6 at work, air pressure
The compressed air and exhaust gas that compression apparatus 61 comes out enter atomizer, and the combustion chamber of incinerator 6 is sprayed into together with compressed air,
Under what is be preheated is driven by oxygen wind, spirally advance in combustion chamber, and burnt by high-temperature oxydation rapidly.In-furnace temperature at this time
Reach 950 DEG C.After high-temperature tail gas is come out of the stove, enter cooling pipe 7 through oxygenating blower heat exchanger, after spraying cooling, temperature is rapid
210 DEG C are reduced to, into absorption tower 8, chimney 85 is sent by high-temperature blower 86 and discharges atmosphere.
The sampled detection of tail gas reaches GB19218-2003 standard requirements (burning capacity≤300kg/h grades).
Embodiment 2:
In 1 process of embodiment, change the total dosage of hydrogenperoxide steam generator of 50% (w/w) concentration, by the total dosage of hydrogenperoxide steam generator by
60L increases to 180L, in two times, 90L is added every time.Sterilising temp is increased to 125 DEG C by 100 DEG C simultaneously, boost in pressure is extremely
0.23MPa, sterilization time are reduced by 40min to 10min.
Soak cycles after ten minutes, stop heating.4 top vent valve of process container is gradually opened, gas is through gas-liquid point
Enter incinerator 6 after coming out from device, condensed fluid enters oxidation solution allocates container 5.When 4 internal pressure of process container is remaining
When 0.05MPa, vent valve is closed, closing volume pipe directly into the valve between high pressure charging circulating pump 53, is opened return pipe and arrived
Fenton's reaction liquid after reaction is discharged into oxidation solution allocates container 5 and kept in by the valve of oxidation solution allocates container 5.When whole oxidations
After liquid enters oxidation solution allocates container 5,44 early gate of filter is closed, 4 top vent valve of process container, Zhi Daofang are again turned on
It is empty.The valve that exhaust gas is directly entered incinerator 6 is closed, starts vacuum pump 9,9 front and back valve of vacuum pump is opened, to process container 4
It is vacuumized.With the raising of vacuum degree, moisture evaporation in useless residue, temperature decline are cured inside process container.When temperature is low
When 50 DEG C, 9 front and back valve of vacuum pump is closed, closes 4 top vent valve of process container, exhaust gas is opened and is directly entered incinerator 6
Valve, open 9 front and back valve of vacuum pump.4 top blow valve of process container is opened, 4 discharge port 42 of process container is opened, is taken out
Useless residue pack is cured after sterilizing, therefrom chooses the bacillus stearothermophilus bionidicator of packaging, places 56 DEG C of ± 2 DEG C of cultures
7 days, observe cultivation results.Judgement sterilizing is qualified.
Embodiment 3:
During embodiment 1, changes the total dosage of hydrogenperoxide steam generator of 50% (w/w) concentration, hydrogenperoxide steam generator is always used
Amount is reduced by 60L to 50L, is added in two portions, 25L is added every time.The dosage for changing simultaneously green vitriol, by seven water of 3g
It closes ferrous sulfate and increases to 8 grams, remaining condition is constant.After reaction, bacillus stearothermophilus bionidicator is sentenced after cultivation
Surely it sterilizes unqualified.
Illustrate the ferrous sulfate as catalyst, the excessive dosage that increases can not substitute the effect of hydrogen peroxide oxidant.
Embodiment 4:
During embodiment 2, after waste is contained intermingle with alcohol film (0.04mm) bag environmental sealing with high-temperature water, without broken
It is broken, it is directly thrown into process container 4, and bacillus stearothermophilus bionidicator is placed among refuse bag package.It goes out
Determine that sterilizing is qualified after bacterium processing.
Embodiment 5:
In 2 process of embodiment, sterilization treatment is completed, and the outlet of oxidation solution allocates container 5 bypass after junk discharging, will be opened
The oxidation solution raffinate of 600kg Reusability is sent into incinerator 6 by pipeline and burned by valve.The pressure that air compression plant 61 comes out
Contracting air and oxidation solution raffinate are simultaneously advanced into atomizer, and the combustion chamber of incinerator 6 is sprayed into together with compressed air, pre-
Under being driven by oxygen wind of heat, spirally advances, and burnt by high-temperature oxydation rapidly in combustion chamber.In-furnace temperature reaches at this time
1100℃.After high-temperature tail gas is come out of the stove, enter cooling pipe 7 through oxygenating blower heat exchanger, after spraying cooling, temperature is reduced to rapidly
240 DEG C, into absorption tower 8, chimney 85 is sent by high-temperature blower 86 and discharges atmosphere.Above procedure lasts 10 hours and completes.Tail gas
Sampled detection reaches GB19218-2003 standard requirements (burning capacity≤300kg/h grades), and wherein dioxin is
0.08TEQng/m3。
Claims (10)
1. a kind of MEDICAL WASTE TREATMENT technique, it is characterised in that comprising steps of
1) clinical waste is broken into graininess or bulk；
2) Fenton reagent is configured；
3) Fenton reagent is added in having broken pure clinical waste and heats；
4) it is heated to 100-125 DEG C, and keeps 10-40 minutes sterilization times under 0-0.23MPa pressure；
5) after sterilizing, clinical waste is separated with Fenton reagent waste liquid；
6) Fenton reagent waste liquid is carried out to atomizing burning disposal in incinerator；
7) clinical waste after separating in step 5 is dried, and sterilizing exhaust gas is discharged into incinerator and is carried out at burning
Reason.
2. MEDICAL WASTE TREATMENT technique according to claim 1, which is characterized in that
In step 5), the Fenton reagent waste liquid recycling that will be isolated, for configuring new Fenton reagent, Fenton in step 2
Reagent waste liquid recycling number is 1 to 10 times；
In step 6, multiple Fenton reagent waste liquid will be reused and carry out atomizing burning disposal in incinerator.
3. MEDICAL WASTE TREATMENT technique according to claim 2, which is characterized in that
In step 2, the Fenton reagent used for the first time is formulated by ferrous sulfate hydrate and aqueous hydrogen peroxide solution, wherein sulphur
Sour ferrous iron concentration is 0.1-10ppm(W/W), concentration of hydrogen peroxide 0.5-10%(W/W), and arrived its pH value adjustment with acetic acid
4-5；Every kilogram of doctor to be processed is useless need to configure 2-6 kilograms of Fenton reagent.
4. MEDICAL WASTE TREATMENT technique according to claim 3, which is characterized in that in step 2, the Fenton that uses for the first time
Reagent is formulated by ferrous sulfate hydrate and aqueous hydrogen peroxide solution, and wherein ferrous sulfate concentration is 1-8ppm(W/W), peroxide
Change hydrogen concentration is 1-7%(W/W), and with acetic acid by its pH value adjustment to 4-5；Every kilogram of doctor to be processed is useless need to configure 3-4 kilograms
Fenton reagent.
5. MEDICAL WASTE TREATMENT technique according to claim 3 or 4, which is characterized in that in step 2, the Fenton of recycling
Reagent is configured by the Fenton reagent waste liquid and aqueous hydrogen peroxide solution isolated, and with acetic acid by its pH value adjustment to 4-5.
6. MEDICAL WASTE TREATMENT technique according to claim 1, which is characterized in that
In step 4), the heating temperature and sterilization time when sterilizing are negatively correlated；Heating temperature when sterilizing is gone out at 100 DEG C
The bacterium time is 40 minutes；For heating temperature when sterilizing at 125 DEG C, sterilization time is 10 minutes.
7. MEDICAL WASTE TREATMENT technique according to claim 6, which is characterized in that
In step 4), when sterilizing is carried out to half, hydrogen peroxide, hydrogen peroxide are added into the Fenton reagent for recycling sterilizing
Additive amount is 0.5-2 times of the additive amount of hydrogen peroxide when configuring Fenton reagent.
8. MEDICAL WASTE TREATMENT technique according to claim 7, which is characterized in that
In the heating process and sterilization process of step 4), the mixture that clinical waste and Fenton reagent are formed ceaselessly is disturbed.
9. MEDICAL WASTE TREATMENT technique according to claim 8, which is characterized in that the processing for placing clinical waste particle is held
Device be equipped with for for Fenton reagent process container internal circulation flow pipeline and pipeline inlet and outlet with process container phase
It is logical；In sterilizing, Fenton reagent is entered in the container by the pipeline from process container outer wall tangential direction.
10. the MEDICAL WASTE TREATMENT technique according to any one of claim 6-9, which is characterized in that
In step 6) and step 7), the internal operating temperature of incinerator is at 850-1200 DEG C；Fenton reagent waste liquid spurts into burning
It flash evapn and burns after furnace, sterilizing exhaust gas is discharged into incinerator and directly burns, the high temperature generated after the burning of at least one of the two
Gas burn residing time in furnace be all larger than 2S and high-temperature gas when coming out of the stove through shower water be cooled to rapidly 250 DEG C with
Under.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811286818.9A CN109506238A (en) | 2018-10-31 | 2018-10-31 | A kind of MEDICAL WASTE TREATMENT technique |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811286818.9A CN109506238A (en) | 2018-10-31 | 2018-10-31 | A kind of MEDICAL WASTE TREATMENT technique |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109506238A true CN109506238A (en) | 2019-03-22 |
Family
ID=65747183
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811286818.9A Pending CN109506238A (en) | 2018-10-31 | 2018-10-31 | A kind of MEDICAL WASTE TREATMENT technique |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109506238A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112820438A (en) * | 2020-04-30 | 2021-05-18 | 东部技术公司 | Chemical oxidation treatment process of PVA waste treatment system |
| CN113230445A (en) * | 2021-05-16 | 2021-08-10 | 杨义德 | Hazardous waste treatment process |
| CN117757620B (en) * | 2023-07-26 | 2024-06-07 | 国药肽谷有限公司 | Production equipment and production method of ginseng peptide with oxidation resistance and aging resistance |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1819974A (en) * | 2003-08-22 | 2006-08-16 | Fmc福瑞特股份有限公司 | Method, devices and reagents for wastewater treatment |
| CN101805099A (en) * | 2010-04-22 | 2010-08-18 | 长沙华时捷环保科技发展有限公司 | Treatment methods of landfill leachate and treatment systems thereof |
| CN201686592U (en) * | 2010-04-22 | 2010-12-29 | 长沙华时捷环保科技发展有限公司 | Garbage leachate treatment system |
| CN103908966A (en) * | 2014-04-21 | 2014-07-09 | 哈尔滨工业大学 | Multiphase Fenton catalyst as well as preparation method and application thereof |
| CN104230618A (en) * | 2014-08-21 | 2014-12-24 | 西南化工研究设计院有限公司 | Recycling process of water resource from ethylene preparation through ethanol dehydration |
| CN205820969U (en) * | 2016-07-08 | 2016-12-21 | 广东开源环境科技有限公司 | A kind of Fenton fluid bed |
| CN106365412A (en) * | 2016-11-14 | 2017-02-01 | 福州大学 | Method for conditioning urban sewage plant excess sludge through ultrasound and Fenton cooperation |
| CN106587560A (en) * | 2017-01-10 | 2017-04-26 | 广东工业大学 | New application of short-term anaerobic digestion in sludge dewatering |
| CN106673383A (en) * | 2016-12-30 | 2017-05-17 | 北京普利科林环境科技有限公司 | Method for strengthening dehydration of petrochemical residual sludge based on physical and chemical combined pretreatment |
-
2018
- 2018-10-31 CN CN201811286818.9A patent/CN109506238A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1819974A (en) * | 2003-08-22 | 2006-08-16 | Fmc福瑞特股份有限公司 | Method, devices and reagents for wastewater treatment |
| CN101805099A (en) * | 2010-04-22 | 2010-08-18 | 长沙华时捷环保科技发展有限公司 | Treatment methods of landfill leachate and treatment systems thereof |
| CN201686592U (en) * | 2010-04-22 | 2010-12-29 | 长沙华时捷环保科技发展有限公司 | Garbage leachate treatment system |
| CN103908966A (en) * | 2014-04-21 | 2014-07-09 | 哈尔滨工业大学 | Multiphase Fenton catalyst as well as preparation method and application thereof |
| CN104230618A (en) * | 2014-08-21 | 2014-12-24 | 西南化工研究设计院有限公司 | Recycling process of water resource from ethylene preparation through ethanol dehydration |
| CN205820969U (en) * | 2016-07-08 | 2016-12-21 | 广东开源环境科技有限公司 | A kind of Fenton fluid bed |
| CN106365412A (en) * | 2016-11-14 | 2017-02-01 | 福州大学 | Method for conditioning urban sewage plant excess sludge through ultrasound and Fenton cooperation |
| CN106673383A (en) * | 2016-12-30 | 2017-05-17 | 北京普利科林环境科技有限公司 | Method for strengthening dehydration of petrochemical residual sludge based on physical and chemical combined pretreatment |
| CN106587560A (en) * | 2017-01-10 | 2017-04-26 | 广东工业大学 | New application of short-term anaerobic digestion in sludge dewatering |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112820438A (en) * | 2020-04-30 | 2021-05-18 | 东部技术公司 | Chemical oxidation treatment process of PVA waste treatment system |
| CN113230445A (en) * | 2021-05-16 | 2021-08-10 | 杨义德 | Hazardous waste treatment process |
| CN117757620B (en) * | 2023-07-26 | 2024-06-07 | 国药肽谷有限公司 | Production equipment and production method of ginseng peptide with oxidation resistance and aging resistance |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109506238A (en) | A kind of MEDICAL WASTE TREATMENT technique | |
| CN106734115A (en) | A kind of processing system of clinical waste | |
| CN106949477B (en) | A kind of processing system of Biohazard Waste and its use technique | |
| CN102476907A (en) | Equipment and method of high-efficiency high-speed environmentally-friendly energy-saving sludge treatment system | |
| CN106734117A (en) | The processing method of Industry Waste sodium acetate slag | |
| CN209035099U (en) | A kind of MEDICAL WASTE TREATMENT system | |
| CN106145574A (en) | A kind of multi-section tube type mud Rapid Thermal hydrolysis process technique | |
| CN206771381U (en) | A kind of pharmaceutical technology emission-control equipment | |
| CN109974016B (en) | Refuse bin deodorizing system and method | |
| CN109304349A (en) | A kind of MEDICAL WASTE TREATMENT system | |
| CN214781653U (en) | Continuous biomass pyrolysis equipment | |
| CN215909062U (en) | Volatile organic compound waste liquid incinerator | |
| JP2004174426A (en) | Waste treatment apparatus | |
| KR100501621B1 (en) | Dry Fermentation Device for Food Waste | |
| CN107655010B (en) | Industrial waste dry distillation gasification pyrolysis treatment system | |
| CN111687167A (en) | Harmless integrated treatment method and system for medical waste suitable for infectious ward | |
| CN206695137U (en) | A kind of processing system of Biohazard Waste | |
| CN206418077U (en) | Biohazard Waste harmless treatment and the special equipment of recycling | |
| CN109556115A (en) | Biohazard Waste is burnt for steam integration system | |
| CN213089828U (en) | Waste residue and waste liquid treatment system | |
| CN110410804B (en) | Organic wastewater atomization incineration device and incineration method | |
| CN206935995U (en) | A kind of processing system of clinical waste | |
| CN105597484B (en) | Active carbon by chemical method produces purification and the recovery system of tail gas | |
| CN209926369U (en) | Garbage bin deodorization system | |
| CN207973704U (en) | A kind of clinical waste resource utilization system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190322 |
|
| RJ01 | Rejection of invention patent application after publication |