CN107555725A - A kind of sewage disposal of hospital method - Google Patents
A kind of sewage disposal of hospital method Download PDFInfo
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- CN107555725A CN107555725A CN201710988217.1A CN201710988217A CN107555725A CN 107555725 A CN107555725 A CN 107555725A CN 201710988217 A CN201710988217 A CN 201710988217A CN 107555725 A CN107555725 A CN 107555725A
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Abstract
The present invention provides a kind of sewage disposal of hospital method, comprises the following steps：Step 1) waste water carries out tentatively being filtrated to get waste water A by grid；Waste water A is passed through in regulating reservoir by step 2) to be adjusted its pH to 79 and obtains waste water B；Waste water B is passed through contact-oxidation pool progress oxidation processes and obtains waste water C by step 3)；Waste water C is passed through sedimentation basin and precipitated by step 4)；The water that sedimentation basin is discharged is passed through in sterilization pool outer after sterilization arrange by step 5)；Wherein, active sludge and micropore biological bed in contact-oxidation pool, activated sludge input amount are 5 10% of water body volume in contact-oxidation pool, and micropore biological bed volume accounts for 15% 20% of wastewater volume in contact-oxidation pool；It is stirred and is aerated simultaneously when contact-oxidation pool works, gas-water ratio is 15~20 in contact-oxidation pool:1；Disinfectant in sterilization pool is Potassium Monopersulfate composite powder.Accessory substance is substantially reduced in wastewater treatment process to harm caused by human body.
Description
Technical field
The present invention relates to water treatment technology, more particularly to a kind of sewage disposal of hospital method.
Background technology
Medical waste water source and composition are sufficiently complex, dirty containing a large amount of pathogenic microbes, poisonous, harmful physical chemistry
Thing is contaminated, there is the features such as space-pollution, acute infection, latent infection, if can turn into without effective processing directly discharge
The important channel of one epidemic disease diffusion.
The waste water of China's major part hospital uses the technique as disclosed in Authorization Notice No. for CN101891349B to carry out at present
Discharged after processing.Its disinfection way is mainly still carried out disinfection using chlorine dioxide generator, but disinfection by chlorine dioxide can endanger
Health.It is embodied in：Have a large amount of chlorine in sewage plant air, the chlorine of long-term inhalation of low concentration can cause it is chronic in
Poison, after the chlorine of higher concentration is sucked, toxic pulmonary edema can be caused, cause laryngospasm and " sudden death type " death occurs；
Its remaining bi-products is carcinogenic, teratogenesis, the mutagenic matters such as haloform, has carcinogenicity to human body；Particularly operating personnel, doctor
Business personnel, patient's Long Term Contact have chronic injury to respiratory system and cornea.
The content of the invention
It is an object of the invention to provide a kind of sewage disposal of hospital method, accessory substance in wastewater treatment process is substantially reduced
To harm caused by human body.
The present invention above-mentioned technical purpose technical scheme is that：A kind of sewage disposal of hospital side
Method, comprise the following steps：
Step 1) waste water carries out tentatively being filtrated to get waste water A by grid；
Waste water A is passed through in regulating reservoir by step 2) to be adjusted its pH to 7-9 and obtains waste water B；
Waste water B is passed through contact-oxidation pool progress oxidation processes and obtains waste water C by step 3)；
Waste water C is passed through sedimentation basin and precipitated by step 4)；
The water that sedimentation basin is discharged is passed through in sterilization pool outer after sterilization arrange by step 5)；
Wherein, active sludge and micropore biological bed in contact-oxidation pool, activated sludge input amount are in contact-oxidation pool
The 5-10% of water body volume, micropore biological bed volume account for the 15%-20% of wastewater volume in contact-oxidation pool；
It is stirred and is aerated simultaneously when contact-oxidation pool works, gas-water ratio is 15~20 in contact-oxidation pool:1；
Disinfectant in sterilization pool is Potassium Monopersulfate composite powder.
It is arranged such, waste water is obstructed big rubbish by grid, and the pH of waste water is adjusted, and waste water enters contact
Oxidation pond, the flco organic matter in waste water is decomposed in contact-oxidation pool so that bacterium is exposed in waste water with virus, most
Afterwards by disinfecting.
Micropore biological bed is the carrier of microorganism colonization, and in contact-oxidation pool following effect occurs for waste water：
Physics chemical action：It is purified waste water the adsorption capacity of organic matter using activated sludge, what suction-operated was carried out
It is very rapid, it can typically be completed in 10min~30min.
Biological chemistry action：Under conditions of aerobic, the vitro enzyme that aerobic bacteria secretes by it (with biology urge by one kind
The reactive protein of change effect), the flco organic matter in waste water is decomposed into dissolved organic matter, together with original molten in waste water
The cell membrane that solution property organic matter penetrates aerobic bacteria enters its cell interior, will be organic then by the biological activity of bacterium
Thing oxidation, decompose and synthesize neoblast, finally in bacterial body in the presence of enzyme, organic matter is resolved into carbon dioxide and water.
In addition, physics chemical action and biological chemistry action are carried out simultaneously：After the absorption affinity of activated sludge reaches saturation,
It will lose into activity.By biological chemistry action, the large amount of organic for adsorbing and absorbing is oxidized decomposition, and activated sludge is again
Activity will be presented again, recover its adsorption capacity.
Potassium Monopersulfate composite powder be dissolved in after water continuously discharged through chain reaction active oxygen so that formed hydroxyl radical free radical,
The various active composition such as Both peroxyl radical, does not produce harmful substance, high-effective disinfecting.Its oxidability is stronger, aoxidizes potential energy
Height, more than chloride, potassium permanganate, hydrogen peroxide etc., the chlorion in water can be oxidized to chlorine, alcohols, aldehydes etc.
Oxidation operation is organic acid.
Further set：Titanium dioxide compound is added in sterilization pool and carry out ultraviolet light while step 5) is carried out
According to processing, titanium dioxide compound includes nano-titania particle 1-1.2 parts, graphene oxide 1.5-1.7 in parts by weight
Part, Kynoar 10.7-11.3 parts, ultraviolet lighting intensity is 2000-4000Lux.
Be arranged such, organic matter surface of graphene oxide absorption, due to the huge specific surface area of graphene, organic matter
Adsorb rapidly in the solution and be gathered in the surface of graphene oxide；The organic matter in graphenic surface is adsorbed, in nano-silica
In the presence of changing titanium particle photocatalysis, intermediate product, small molecule, CO are broken down into2And H2O.Pass through ultraviolet light antivirus and single over cure
Potassium hydrogen phthalate composite powder carries out joint sterilizing, and sterilization effect is more preferably.
Further set：Intensity of illumination is 2900-3100Lux.
It is arranged such, intensity of illumination sterilization effect in above range is more preferable.
Further set：Titanium dioxide compound also includes 0.1-0.2 part silica flours in parts by weight.
Experiment shows that the addition of silica flour can accelerate the speed that sterilizes.
Further set：The preparation method of titanium dioxide compound is as follows：Kynoar is heated to 200 DEG C, added
Graphene oxide, TiO 2 particles and silica flour carry out uniform stirring, are cooled down after mixing time 0.5h；Afterwards by the production after cooling
Thing is granulated by comminutor.
Further set：Grid gap is 10-15mm in step 1).
It is arranged such, the grid before sedimentation basin typically uses 15-30mm, is up to 40mm；This programme is directed to hospital wastewater
The characteristic of middle rubbish, grid gap is designed to above-mentioned size, the size rule of thumb designs.
In summary, the invention has the advantages that：Wastewater treatment speed is fast, high treating effect；And greatly reduce
To harm caused by human body in processing procedure.
Embodiment
The present invention is described in further detail below.
This specific embodiment is only explanation of the invention, and it is not limitation of the present invention, people in the art
Member can make the modification of no creative contribution to the present embodiment as needed after this specification is read, but as long as at this
All protected in the right of invention by Patent Law.
Embodiment 1：A kind of sewage disposal of hospital method, step 1) waste water carry out tentatively being filtrated to get waste water A by grid；
Waste water A is passed through in regulating reservoir by step 2) to be adjusted its pH to 7-9 and obtains waste water B；
Waste water B is passed through contact-oxidation pool progress oxidation processes and obtains waste water C by step 3)；
Waste water C is passed through sedimentation basin and precipitated by step 4)；
The water that sedimentation basin is discharged is passed through in sterilization pool outer after sterilization arrange by step 5)；
Wherein, grid gap is 12mm.(micropore biological bed is Hangzhoupro for active sludge and micropore biological bed in contact-oxidation pool
Zhou Zi scapes Ingegneria Ambientale SRL produces, and model ZF5x5x5, material is polyurethane), activated sludge input amount is catalytic oxidation
The 8% of water body volume in pond, micropore biological bed volume account for 18% of wastewater volume in contact-oxidation pool.
It is stirred and is aerated simultaneously when contact-oxidation pool works, gas-water ratio is 15 in contact-oxidation pool:1.Stir
Mix and use submersible agitator, air is pressed into aeration tank by air compressor and is aerated.Disinfectant in sterilization pool is
Potassium Monopersulfate composite powder (Shaowu Shu Mei bio tech ltd produces, and model OXY-809, dosage is 12g/ tons).
Embodiment 2：A kind of sewage disposal of hospital method, the difference with embodiment 1 are：Property sludge input amount be contact oxygen
Change 5% of water body volume in pond, micropore biological bed volume accounts for 15% of wastewater volume in contact-oxidation pool., in contact-oxidation pool
Gas-water ratio is 20:1.
Embodiment 3：A kind of sewage disposal of hospital method, the difference with embodiment 1 are：Property sludge input amount be contact oxygen
Change 7% of water body volume in pond, micropore biological bed volume accounts for 16% of wastewater volume in contact-oxidation pool., in contact-oxidation pool
Gas-water ratio is 17:1.
Embodiment 4：A kind of sewage disposal of hospital method, the difference with embodiment 1 are：Property sludge input amount be contact oxygen
Change 10% of water body volume in pond, micropore biological bed volume accounts for 20% of wastewater volume in contact-oxidation pool., in contact-oxidation pool
Gas-water ratio is 18:1.
Embodiment 5：Embodiment 1：A kind of sewage disposal of hospital method, step 1) waste water by grid tentatively filter
To waste water A；
Waste water A is passed through in regulating reservoir by step 2) to be adjusted its pH to 7-9 and obtains waste water B；
Waste water B is passed through contact-oxidation pool progress oxidation processes and obtains waste water C by step 3)；
Waste water C is passed through sedimentation basin and precipitated by step 4)；
The water that sedimentation basin is discharged is passed through in sterilization pool outer after sterilization arrange by step 5)；Potassium Monopersulfate is added in itself in sterilization pool
Titanium dioxide compound is added on the basis of composite powder and carries out ultraviolet lighting processing, ultraviolet lighting intensity is 2100Lux；Dioxy
It is waste water refers in sterilization pool 1% to change titanium compound dosage.
Wherein, grid gap is 12mm.Active sludge and micropore biological bed (micropore biological bed in contact-oxidation pool
Produced for Hangzhou Zi Jing Ingegneria Ambientale SRL, model ZF5x5x5, material is polyurethane), activated sludge input amount is contact
The 8% of water body volume in oxidation pond, micropore biological bed volume account for 18% of wastewater volume in contact-oxidation pool.
It is stirred and is aerated simultaneously when contact-oxidation pool works, gas-water ratio is 15 in contact-oxidation pool:1.Stir
Mix and use submersible agitator, air is pressed into aeration tank by air compressor and is aerated.Disinfectant in sterilization pool is
Potassium Monopersulfate composite powder (Shaowu Shu Mei bio tech ltd produces, and model OXY-809, dosage is 12g/ tons).
Titanium dioxide compound includes 1.1 parts of nano-titania particle, 1.5 parts of graphene oxide, gathered in parts by weight
10.8 parts of vinylidene.The preparation method of titanium dioxide compound is as follows：Kynoar is heated to 200 DEG C, adds oxidation
Graphene, TiO 2 particles carry out uniform stirring, are cooled down after mixing time 0.5h；The product after cooling is passed through into granulation afterwards
Machine is granulated, particle diameter 3mm.
Embodiment 6：A kind of sewage disposal of hospital method, the difference with embodiment 5 are：Ultraviolet lighting intensity is
2400Lux.Titanium dioxide compound includes 1.2 parts of nano-titania particle, 1.7 parts of graphene oxide, gathered in parts by weight
11.2 parts of vinylidene.
Embodiment 7：A kind of sewage disposal of hospital method, the difference with embodiment 5 are：Ultraviolet lighting intensity is 27
00Lux.Titanium dioxide compound includes 1 part of nano-titania particle, 1.6 parts of graphene oxide, gathers inclined fluorine in parts by weight
11 parts of ethene.
Embodiment 8：A kind of sewage disposal of hospital method, the difference with embodiment 5 are：Ultraviolet lighting intensity is
3000Lux.Titanium dioxide compound includes 1.1 parts of nano-titania particle, 1.7 parts of graphene oxide, gathered in parts by weight
10.7 parts of vinylidene.
Embodiment 9：A kind of sewage disposal of hospital method, the difference with embodiment 5 are：Ultraviolet lighting intensity is
3300Lux.Titanium dioxide compound includes 1 part of nano-titania particle, 1.6 parts of graphene oxide, gathered partially in parts by weight
11.3 parts of PVF.
Embodiment 10：A kind of sewage disposal of hospital method, the difference with embodiment 5 are：Ultraviolet lighting intensity is
3600Lux.Titanium dioxide compound includes 1.2 parts of nano-titania particle, 1.7 parts of graphene oxide, gathered in parts by weight
10.9 parts of vinylidene.
Embodiment 11：A kind of sewage disposal of hospital method, the difference with embodiment 5 are：Ultraviolet lighting intensity is
4000Lux.Titanium dioxide compound includes 1.2 parts of nano-titania particle, 1.5 parts of graphene oxide, gathered in parts by weight
11.1 parts of vinylidene.
Embodiment 12：A kind of sewage disposal of hospital method, the difference with embodiment 11 are：Ultraviolet lighting intensity is
2950Lux。
Embodiment 13：A kind of sewage disposal of hospital method, the difference with embodiment 11 are：Ultraviolet lighting intensity is
3000Lux。
Embodiment 14：A kind of sewage disposal of hospital method, the difference with embodiment 11 are：Ultraviolet lighting intensity is
3050Lux。
Embodiment 15：A kind of sewage disposal of hospital method, the difference with embodiment 11 are：Ultraviolet lighting intensity is
3100Lux。
Embodiment 16：A kind of sewage disposal of hospital method, the difference with embodiment 8 are：Titanium dioxide compound is by weight
Amount number also includes 0.1 part of silica flour.
Embodiment 17：A kind of sewage disposal of hospital method, the difference with embodiment 8 are：Titanium dioxide compound is by weight
Amount number also includes 0.2 part of silica flour.
Comparative example 1：A kind of sewage disposal of hospital method, the difference with embodiment 8 are：Titanium dioxide compound is by weight
Number also includes 0.3 part of silica flour.
Comparative example 2：A kind of sewage disposal of hospital method, the difference with embodiment 8 are：Titanium dioxide compound is by weight
Number also includes 0.5 part of silica flour.
The preparation method of titanium dioxide compound is as follows in embodiment 16-17, comparative example 1-2：Kynoar is heated
To 200 DEG C, add graphene oxide, TiO 2 particles, silica flour and carry out uniform stirring, cooled down after mixing time 0.5h；Afterwards
Product after cooling is granulated by comminutor, particle diameter 3mm.
Below to certain hospital wastewater (amount of inlet water：800m3/ d) sampled, and sample is detected, testing result
Such as following table:
Discharge standard performs《Discharge standard of water pollutants for medical organization》(GB18466-2005), water outlet leading indicator permits
Perhaps maximal emission such as following table：
The waste water of above-mentioned hospital is handled by the way of embodiment 1-4, handling duration is identical, and its result is as follows：
Shown by upper table, this programme meets sewage disposal of hospital effect《Discharge standard of water pollutants for medical organization》
(GB18466-2005)。
The waste water of above-mentioned hospital is handled by the way of embodiment 5-15, the place of control duration and embodiment 1-4
It is identical to manage duration.
Above table shows：In the case where disinfectant and optically catalytic TiO 2 act on simultaneously, Disinfection Effect is more preferable.And illumination is strong
Degree best results in 2900-3100Lux.
The waste water of above-mentioned hospital is handled by the way of embodiment 13-17, comparative example 1-2, except in sterilization pool
Handling duration outside, remaining handling duration all same.
Shown by above table, the addition of the silica flour of certain content (0.1-0.2 parts) can be accelerated to sterilize.
Claims (6)
- A kind of 1. sewage disposal of hospital method, it is characterised in that comprise the following steps：Step 1) waste water carries out tentatively being filtrated to get waste water A by grid；Waste water A is passed through in regulating reservoir by step 2) to be adjusted its pH to 7-9 and obtains waste water B；Waste water B is passed through contact-oxidation pool progress oxidation processes and obtains waste water C by step 3)；Waste water C is passed through sedimentation basin and precipitated by step 4)；The water that sedimentation basin is discharged is passed through in sterilization pool outer after sterilization arrange by step 5)；Wherein, active sludge and micropore biological bed in contact-oxidation pool, activated sludge input amount are in contact-oxidation pool The 5-10% of water body volume, micropore biological bed volume account for the 15%-20% of wastewater volume in contact-oxidation pool；It is stirred and is aerated simultaneously when contact-oxidation pool works, gas-water ratio is 15~20 in contact-oxidation pool:1；Disinfectant in sterilization pool is Potassium Monopersulfate composite powder.
- A kind of 2. sewage disposal of hospital method according to claim 1, it is characterised in that：Carry out step 5) while Titanium dioxide compound is added in sterilization pool and carries out ultraviolet lighting processing, titanium dioxide compound includes nanometer in parts by weight TiO 2 particles 1-1.2 parts, graphene oxide 1.5-1.7 parts, Kynoar 10.7-11.3 parts, ultraviolet lighting intensity are 2000-4000Lux。
- A kind of 3. sewage disposal of hospital method according to claim 2, it is characterised in that：Intensity of illumination is 2900- 3100Lux。
- A kind of 4. sewage disposal of hospital method according to claim 3, it is characterised in that：Titanium dioxide compound is by weight Number also includes 0.1-0.2 part silica flours.
- A kind of 5. sewage disposal of hospital method according to claim 4, it is characterised in that：The preparation of titanium dioxide compound Method is as follows：Kynoar is heated to 200 DEG C, graphene oxide, TiO 2 particles and silica flour is added and is uniformly stirred Mix, cooled down after mixing time 0.5h；The product after cooling is granulated by comminutor afterwards.
- A kind of 6. sewage disposal of hospital method according to claim 1, it is characterised in that：Grid gap is in step 1) 10-15mm。
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| CN201710988217.1A CN107555725A (en) | 2017-10-21 | 2017-10-21 | A kind of sewage disposal of hospital method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108911299A (en) * | 2018-06-14 | 2018-11-30 | 韶关学院 | A kind of medical sewage multistage bactericidal unit and method based on graphene nano technology |
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| CN106927634A (en) * | 2017-04-10 | 2017-07-07 | 浙江省现代建筑设计研究院有限公司 | Waste water treatment system for hospitals |
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| CN108911299A (en) * | 2018-06-14 | 2018-11-30 | 韶关学院 | A kind of medical sewage multistage bactericidal unit and method based on graphene nano technology |
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