CN105668909B - A kind of wastewater treatment method and system suitable for community hospital - Google Patents

A kind of wastewater treatment method and system suitable for community hospital Download PDF

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CN105668909B
CN105668909B CN201610190495.8A CN201610190495A CN105668909B CN 105668909 B CN105668909 B CN 105668909B CN 201610190495 A CN201610190495 A CN 201610190495A CN 105668909 B CN105668909 B CN 105668909B
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magnetic
community hospital
waste water
solid
auxiliary agent
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CN105668909A (en
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陈寒松
郑绍成
李小忠
严晓阳
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Xingzhi College of Zhejiang Normal University
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Xingzhi College of Zhejiang Normal University
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    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F9/00—Multistage treatment of water, waste water or sewage
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/48—Treatment of water, waste water, or sewage with magnetic or electric fields
    • C02F1/488—Treatment of water, waste water, or sewage with magnetic or electric fields for separation of magnetic materials, e.g. magnetic flocculation
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/50—Treatment of water, waste water, or sewage by addition or application of a germicide or by oligodynamic treatment
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
    • C02F1/54—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using organic material
    • C02F1/56—Macromolecular compounds
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/72—Treatment of water, waste water, or sewage by oxidation
    • C02F1/76—Treatment of water, waste water, or sewage by oxidation with halogens or compounds of halogens
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
    • C02F2103/003—Wastewater from hospitals, laboratories and the like, heavily contaminated by pathogenic microorganisms

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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)
  • Separation Of Suspended Particles By Flocculating Agents (AREA)
  • Water Treatment By Electricity Or Magnetism (AREA)

Abstract

The present invention relates to one kind to be suitable for community hospital's wastewater treatment method and system.Method includes the following steps: (1) medical waste water by grid removes agglomerate floater；(2) the uniform water quality of regulating pondage；(3) it is added directly magnetic auxiliary agent, so that Pollutants in Wastewater is formed fine magnetic and coagulates core；(4) flocculant is added, makes magnetic solidifying karyomorphism at magnetic floc sedimentation；(5), using magnetic conveyer belt is added, it is separated by solid-liquid separation using Magneto separate principle；(6) qualified discharge after supernatant carries out disinfection；(7) the sludge of magnetic is scraped automatically with scraper plate, and sterile-processed rear and clinical waste transports outward disposition together.This method and the system being consequently formed are simple and convenient, effect stability, are particularly suitable for the processing up to standard of the medical waste waters such as community hospital.

Description

A kind of wastewater treatment method and system suitable for community hospital
Technical field
The present invention relates to a kind of wastewater treatment methods and system suitable for community hospital, belong to wastewater processing technology neck Domain.
Background technique
Urban community health services be recognized by the world as be Health Services Mode change effective measures.It is seen to solve grassroots Sick hardly possible problem, China are exploring the system that base head is examined, is classified diagnosis and treatment and changes the place of examination, are encouraging social capital to do doctor, especially lift Non-profit-making Basic medical and health institutions are done, permit that qualified doctor opens up general practitioner clinic to community or individual examines Institute.Therefore, go deep into China's medical reform, community hospital had been greatly developed in recent years.
However hospital can generate a certain amount of medical waste water in operation, wherein containing patient's excreta, drug, examining The organic pollutants such as disconnected agent, and a large amount of pathogenic microbes, parasitic ovum and various viruses.These medical waste water ingredients are multiple Miscellaneous, environmental pollution is serious, and general large and medium-sized hospital all has special waste water disposal facility and carries out processing discharge.But these are useless Water treatment station technique is relative complex, takes up a large area, and Facilities Construction and operating cost are high, and most community hospitals do not have accordingly Implementation condition.Therefore, also lack the medical waste water qualified discharge processing technique of suitable community hospital.
Existing medical waste water processing technique generallys use biochemical method and embrane method.As patent of invention CN201510669797.9 is public A kind of biochemical treatment system of medical waste water processing is opened, the system is by hydrolysis acidification pool, pre- anoxic pond, anaerobic pond, anoxic pond And five functional areas compositions of aerobic tank, the technique is higher to biochemical strain fostering requirement, and structure is complicated for treatment facility, is not suitable for society The physical condition of district hospital.Patent of invention CN201510449482.3 then discloses a kind of membrane technology medical treatment with disinfection by ultraviolet light Wastewater treatment method, this method use anaerobic biological-aerobic biochemical-film process-disinfection by ultraviolet light process flow, the party Method is to carry out water quality promotion using membrane technology on the basis of biochemical treatment, membrane module to the more demanding of daily maintenance, It is suitble to the hospital for having Treated sewage reusing requirement.Be all Anqing Wan Qing Environmental Protection Technology Co., Ltd the processing invention of three medical waste waters it is special Sharp CN201510377748.8, CN201510381161.4, CN201510377052.5 are based on biochemical method and membrane technology, technique Complexity, facility take up a large area, and management difficulty is higher, do not meet the wastewater treatment condition of community hospital.Patent of invention CN201210384918.1 discloses a kind of medical waste water treatment process, which includes pretreatment, biochemical treatment, depth Processing and disinfection by chlorine dioxide handle four-stage, wherein biochemical treatment include Anaerobic Treatment, it is three-level Aerobic Process for Treatment, secondary heavy It forms sediment；The advanced treating stage includes quartz sand filtration, active carbon filtering, ultrafiltration etc..It is in line that the Process for Effluent can reach medical industry Standard, but complex process, control difficulty is big, is applicable in the processing of the large hospital waste water positioned at environmentally sensitive areas.
Therefore, a kind of simple process is researched and developed, the community that is suitable for that operation and maintenance are convenient, construction and operating cost are low cures The processing method and system of institute's waste water are imperative.
Summary of the invention
In view of the deficiencies of the prior art, the present invention provides a kind of wastewater treatment method and system suitable for community hospital, Realize the qualified discharge of medical waste water, simple process, operation and maintenance are convenient, at low cost.
It is of the present invention to be suitable for community hospital's wastewater treatment method, include the following steps:
(1) medical waste water removes agglomerate floater by grid, size≤20mm of suspended matter in waste water after processing；
(2) the uniform water quality of regulating pondage, regulating time (T1) is fixed according to the working time (T2) of community hospital, T1 >=(1/3) T2；
(3) magnetic auxiliary agent is added, is quickly stirred, makes Pollutants in Wastewater and the abundant making contact of magnetic auxiliary agent, is formed tiny The solidifying core of magnetism；
(4) flocculant is added, is slowly stirred, magnetic solidifying core is made to form magnetic floc sedimentation under the crosslinked action of flocculant；
(5), using magnetic conveyer belt is added, magnetic floc sedimentation magnetic is reached into separation of solid and liquid on its surface using Magneto separate principle, point SS≤20mm is required in supernatant from after；
(6) after supernatant is by adding disinfectant removal pathogenic microbes, parasitic ovum and various viruses, unification is passed through Discharge outlet qualified discharge；
(7) plus on magnetic conveyer belt the sludge of magnetic is scraped with scraper plate automatically during operation, and disinfection is added after collecting Agent transports outward disposition according to environmentally friendly code requirement and clinical waste together.
Grid of the present invention can be mechanical grille and be also possible to artificial grid, preferably, the pitch of grid≤ 20mm。
It is of the present invention magnetism auxiliary agent be using with ferromagnetism granular substance as the auxiliary agent of matrix.
Preferably, the present invention uses iron powder, partial size >=100 mesh, adding dosage is 200-500mg/L, reaction stirring speed Degree is >=150r/min.
Flocculant of the present invention refers to high polymer coagulant conventional in wastewater treatment, preferably, the present invention adopts With anionic PAM, molecular weight is 10,000,000-1,200 ten thousand, and adding dosage is 5mg/L-50mg/L, reaction mixing speed is≤ 50r/min。
Preferably, of the present invention plus magnetic conveyer belt transmission speed≤0.5m/s, magnetic field strength 0.1-0.5T.
Preferably, disinfectant of the present invention is the chlorine system disinfectants such as sodium hypochlorite, chlorine dioxide, to reach disinfection The extending function of effect.
As further preferred, the present invention uses sodium hypochlorite, and dosage is 30-50mg/L (in terms of effective chlorine), disinfection Time of contact >=1.0h.
Correspondingly, being based on above-mentioned processing method, the waste water treatment system for community hospital is formd, including grille well, Conditioning tank, reaction zone, solid-liquid displacement zone, sterile zones, mud collection area, automatic medicine adding apparatus；It is characterized in that, hospital wastewater leans on potential difference Gravity flow enters grille well, and grille well is connected to conditioning tank；Conditioning tank is connected to by elevator pump with reaction zone；Reaction zone and solid-liquid point It is connected to from area, solid-liquid displacement zone upper end is connected to mud collection area, and is connected to by side pipe with sterile zones, and water reuse potential difference is successively Gravity flow discharge；Automatic medicine adding apparatus is connected to reaction zone, sterile zones respectively by dosing pump.
The effect of grille well and conditioning tank of the present invention respectively removes agglomerate floater, and the uniform water of regulating pondage Matter.
Two lattice are divided into reaction of the present invention, magnetic auxiliary agent and flocculant are successively added, preferably, reaction zone water The power residence time >=0.5h.
Bottom arrangement in solid-liquid displacement zone of the present invention plus magnetic conveyer belt, add magnetic conveyer belt to be connected with mud collection area, as It is preferred that solid-liquid displacement zone available depth≤1.0m.
Effluent weir is arranged in solid-liquid displacement zone upper end of the present invention, thereon along lower than solid-liquid displacement zone and mud collection area interval Plate opening lower edge, preferably, height difference >=10mm.
Mud collection area of the present invention is provided with non magnetic scraper plate, preferably, mud discharging mouth is arranged in mud collection area lower end.
Blender and baffle plate are set in sterile zones of the present invention, are uniformly mixed disinfectant with waste water.
Automatic medicine adding apparatus of the present invention adds including magnetic auxiliary agent chemicals dosing plant, flocculant chemicals dosing plant, disinfectant Three sets of equipment of medicine device, wherein magnetic auxiliary agent chemicals dosing plant, flocculant chemicals dosing plant are connect with reaction zone, disinfectant chemicals dosing plant It is connect with sterile zones, the elevator pump switch gearing of chemicals dosing plant started switch with conditioning tank.
The electrical equipments such as blender and elevator pump of the present invention are conventional use of equipment in field of waste water treatment, Its model is according to the normal type selecting of professional standard.
Compared with existing medical waste water processing method and system, the invention has the following beneficial effects:
(1) wastewater treatment method of the present invention and system are high with treatment effeciency, construction and operating cost are low, facility The features such as occupied area is small, easily operated management, the actual conditions especially suitable for community hospital；
(2) we's bright wastewater treatment method and system pertains only to physical reaction, can be according to hospital outpatient situation tune Runing time is controlled, can start and close at any time, there is no the operation problems that the existence of biochemical system strain need to open facility for a long time；
(3) in wastewater treatment method of the present invention, due to additional magneticaction, sludge settling speed is more mixed than conventional Solidifying settling velocity improves nearly 10-15 times, and the processing time greatly shortens；
(4) the sludge compactness that method of the present invention generates is high, and moisture content is small, about 40%-60%, can not have to additional The mechanical facility of dehydration can meet related request, save cost.
Detailed description of the invention
Fig. 1 is system construction drawing of the invention
Fig. 2 is flow chart of the method for the present invention
Wherein: 1 indicates grille well；2 indicate conditioning tank；3 indicate reaction zone；4 indicate solid-liquid displacement zone；5 indicate mud collection area； 6 indicate sterile zones；7 indicate discharge outlet；8 indicate mud discharging mouth；9 indicate effluent weir；10 indicate to add magnetic transmission belt；11 expression magnetism help Agent chemicals dosing plant；12 indicate flocculant chemicals dosing plant；13 indicate disinfectant chemicals dosing plant；14 indicate elevator pump；15 indicate quick Blender；16 indicate slow stirrer；17 indicate disinfection blender；18 indicate baffle plate.
Specific embodiment
The present invention is described further in the following with reference to the drawings and specific embodiments, but the scope of the present invention is not limited to This.
Embodiment one
According to shown in Fig. 1, the medical waste water processing system suitable for community hospital is by grille well 1, conditioning tank 2, reaction zone 3, solid-liquid displacement zone 4, sterile zones 6, mud collection area 5, automatic medicine adding apparatus composition, the automatic medicine adding apparatus include magnetic auxiliary agent Chemicals dosing plant 11, flocculant chemicals dosing plant 12 and disinfectant chemicals dosing plant 13, wherein grille well 1 is connected with conditioning tank 2, for convenient for Wastewater collection, grille well 1 and conditioning tank 2 are buried structure, and import absolute altitude is lower than dirt collection pipe tube bottom absolute altitude；Reaction zone 3, which divides, is Two lattice are connected with magnetic auxiliary agent chemicals dosing plant 11 and 12 chemical feed pipe of flocculant chemicals dosing plant respectively, and water window position is crossed in two reaction grid areas In partition bottom, to extend reaction contact time；Reaction zone 3 is connected with solid-liquid displacement zone 4, and 4 available depth of solid-liquid displacement zone≤ 1.0m, bottom arrangement plus magnetic conveyer belt 10；Add 10 pile warp solid-liquid displacement zone of magnetic conveyer belt, 4 bottom to mud collection area 5, it is non-by side Sludge is discharged magnetic scraper plate from bottom mud discharging mouth 8；Effluent weir 9 is arranged in 4 upper end of solid-liquid displacement zone, to prevent waste water from flowing backward collection mud Area 5, along 10mm or more along the partition lower than solid-liquid displacement zone 4 and mud collection area 5 on water outlet weir plate 9.Supernatant through effluent weir 9 and Side pipe gravity flow enters sterile zones 6, and sterile zones 6 are connected with the disinfectant chemical feed pipe of disinfectant chemicals dosing plant 13, built-in blender 17 and baffle plate 18, it is uniformly mixed disinfectant with waste water, the waste water after disinfection is discharged through upper end discharge outlet 7.
According to above system, processing method as shown in connection with fig. 2, waste water treatment step is as follows:
(1) hospital wastewater is discharged into after the pitch 20mm removing of grille well 1 bulk impurity below certainly first after sewage pipe is collected Stream enters conditioning tank 2；
(2) waste water hydraulic detention time (T1) in conditioning tank 2 is no less than the working time (T2) of (1/3) community hospital, with The uniform water quality of abundant regulating pondage, is convenient for subsequent processing；
(3) the uniform preceding lattice for squeezing into reaction zone 3 of the boosted pump 14 of waste water in conditioning tank 2, according to 14 flow control magnetic of elevator pump Property auxiliary agent chemicals dosing plant 11 be added magnetic auxiliary agent 200-500mg/L, and with the speed greater than 150r/min quickly stir 20min with On, so that suspended particulate substance and dissolubility organic pollutant and the auxiliary agent in waste water is formed magnetic solidifying core, then flow automatically into reaction Lattice behind area 3；
(4) anion PAM5mg/L-50mg/L is added after reaction zone 3 in lattice, is mixed slowly with the speed less than 50r/min 10min or so makes magnetic solidifying core form bulk floc sedimentation, mixed liquor gravity flow under the effects of crosslinking of flocculant, net are caught, swept across Into solid-liquid displacement zone 4.
(5) the floccule in solid-liquid displacement zone 4 is since density is greater than water, while sinking by self weight, in 4 bottom of Disengagement zone The effect of the be arranged plus additional certain magnetic field of magnetic conveyer belt 10, by ferromagnetism floccule quick adsorption on its surface, not only accelerates It is separated by solid-liquid separation rate, and keeps separation of solid and liquid more thorough, the more conventional coagulation method of the SS and COD concentration in supernatant reduces close 20% or more.
(6) supernatant gravity flow enters sterile zones 6, utilizes the control disinfection of disinfectant chemicals dosing plant 13 according to 14 flow of elevator pump Agent dosage is 30-50mg/L (in terms of effective chlorine), and disinfection time of contact is no less than 1.0h, to remove pathogenic microbes, post Infested ovum and various viruses are included in municipal sewage pipe network qualified discharge finally by uniform effluent mouth；
(7) plus magnetic conveyer belt 10 is run with the speed loop for being averagely not more than 0.5m/s, and the sludge of magnetic is worked as and run to thereon When mud collection area 5, is scraped automatically using the non magnetic scraper plate that side is arranged, disinfectant is added after mud discharging mouth 8 is discharged and collects, presses Disposition is transported outward together according to environmentally friendly code requirement and clinical waste.
Embodiment two
8 hours certain community hospital's consulting hours generate 20 tons of medical waste water day, and waste water COD average out to 350mg/L, SS are flat It is 500mg/L, ammonia nitrogen average out to 45mg/L, colibacillus of excrement averagely no less than 1.0 × 106It is a.
Using the method and system in embodiment 1, relevant design parameter is as follows:
(1) grille well and conditioning tank are all made of buried brick mix structure, and the pitch of grid is 15mm, conditioning tank basin's effective volume 10m3, regulating time 4 hours.Promotion pump discharge is 2.5m3/ h, lift 8.0m；
(2) reaction zone basin's effective volume 1.5m3, reaction contact time 0.6 hour.Solid-liquid displacement zone surface loading 1.7m3/m2· H, available depth 1.0m.Add magnetic conveyer belt transmission speed 0.5m/s；
(3) sterile zones basin's effective volume 3m3, sterilize time of contact 1.2 hours；
Wastewater treatment process is as follows:
The gravity flow after grid removes bulk sundries of community hospital's waste water enters conditioning tank regulating pondage, uniform water quality；It adjusts Pond water reuse elevator pump squeezes into reaction proparea, and 350mg/L ferromagnetism auxiliary agent is added, is quickly stirred with 180r/min speed, and The anion PAM that 15mg/L molecular weight is 10,000,000 is added in area after the reaction, is mixed slowly with the speed of 40r/min；Dosing is anti- For waste water after answering behind solid-liquid displacement zone, supernatant gravity flow enters sterile zones, adds the liquor natrii hypochloritis of 45mg/L (with effective Chlorinity meter), municipal sewage pipe network is included in water outlet；Solid-liquid displacement zone bottom transmission belt brings mud into mud collection area, sterilizes through collecting Remaining medical solid waste is disposed together with hospital afterwards.
Water treatment effect is as follows:
Testing result shows that waste water energy after processing reaches " Discharge standard of water pollutants for medical organization " (GB18466- 2005) pipe emission request is received in.Moisture percentage in sewage sludge average out to 45% or so after processing, can not use subsequent dehydration equipment Processing can reach environmentally friendly related disposition and require.
Preferable embodiment of the invention above described embodiment only expresses, the description thereof is more specific and detailed, but simultaneously The limitation to the invention patent the scope of the patents therefore cannot be interpreted as.It should be pointed out that the technology for being familiar with this field For personnel, without departing from the inventive concept of the premise, several equivalent substitution or change can also be made, these should all contain Lid is within protection scope of the present invention.

Claims (9)

1. a kind of wastewater treatment method suitable for community hospital, it is characterised in that at the waste water suitable for community hospital Reason method includes the following steps:
(1) medical waste water removes agglomerate floater by grid, size≤20mm of suspended matter in waste water after processing；
(2) the uniform water quality of regulating pondage, regulating time T1 is fixed according to the working time T2 of community hospital, T1 >=1/3T2；
(3) magnetic auxiliary agent is added, is quickly stirred, makes Pollutants in Wastewater and the abundant making contact of magnetic auxiliary agent, forms fine magnetic Solidifying core；
(4) flocculant is added, is slowly stirred, magnetic solidifying core is made to form magnetic floc sedimentation under the crosslinked action of flocculant；
(5), using magnetic conveyer belt is added, magnetic floc sedimentation magnetic is reached into separation of solid and liquid, after separation on its surface using Magneto separate principle Supernatant in require SS≤20mL；
(6) after supernatant is by adding disinfectant removal pathogenic microbes, parasitic ovum and various viruses, uniform effluent is passed through Mouth qualified discharge；
(7) plus on magnetic conveyer belt the sludge of magnetic is scraped with scraper plate automatically during operation, and disinfectant is added after collecting, presses Disposition is transported outward together according to environmentally friendly code requirement and clinical waste.
2. a kind of wastewater treatment method suitable for community hospital according to claim 1, it is characterised in that the lattice Grid are mechanical grille or artificial grid, pitch≤20mm of grid；Described plus magnetic conveyer belt transmission speed≤0.5m/s, magnetic field Intensity 0.1-0.5T.
3. a kind of wastewater treatment method suitable for community hospital according to claim 1, it is characterised in that the magnetic Property auxiliary agent be using with ferromagnetism granular substance as the auxiliary agent of matrix, partial size >=100 mesh, add dosage be 200-500mg/L, instead Answering mixing speed is >=150r/min.
4. a kind of wastewater treatment method suitable for community hospital according to claim 1, it is characterised in that the wadding Solidifying agent uses anionic PAM, and molecular weight is 10,000,000-1,200 ten thousand, and adding dosage is 5mg/L-50mg/L, reacts mixing speed For≤50r/min.
5. a kind of wastewater treatment method suitable for community hospital according to claim 1, it is characterised in that described disappears Toxic agent uses chlorine system disinfectant, and dosage is calculated as 30-50mg/L with effective chlorine, sterilizes time of contact >=1.0h.
6. a kind of waste water treatment system suitable for community hospital, the waste water treatment system suitable for community hospital include Grille well, conditioning tank, reaction zone, solid-liquid displacement zone, sterile zones, mud collection area, automatic medicine adding apparatus, it is characterised in that hospital wastewater Enter grille well by potential difference gravity flow, grille well is connected to conditioning tank；Conditioning tank is connected to by elevator pump with reaction zone；Reaction zone with Solid-liquid displacement zone connection, solid-liquid displacement zone upper end are connected to mud collection area, and are connected to by side pipe with sterile zones, water reuse position Difference successively gravity flow discharge；Automatic medicine adding apparatus is connected to reaction zone, sterile zones respectively by dosing pump；The solid-liquid displacement zone Bottom arrangement plus magnetic conveyer belt, add magnetic conveyer belt to be connected with mud collection area, solid-liquid displacement zone available depth≤1.0m；Solid-liquid displacement zone Effluent weir is arranged in upper end, thereon along lower than solid-liquid displacement zone and mud collection area spacing board opening lower edge, height difference >=10mm.
7. a kind of waste water treatment system suitable for community hospital according to claim 6, it is characterised in that described is anti- Two lattice should be divided into, magnetic auxiliary agent and flocculant, reaction zone hydraulic detention time >=0.5h are successively added.
8. a kind of waste water treatment system suitable for community hospital according to claim 6, feature is in the collection mud Area is provided with non magnetic scraper plate, and mud discharging mouth is arranged in mud collection area lower end；Blender and baffle plate are set in the sterile zones.
9. a kind of waste water treatment system suitable for community hospital according to claim 6, it is characterised in that it is described from Dynamic chemicals dosing plant includes magnetic auxiliary agent chemicals dosing plant, three sets of flocculant chemicals dosing plant, disinfectant chemicals dosing plant equipment, wherein magnetic Auxiliary agent chemicals dosing plant, flocculant chemicals dosing plant are connect with reaction zone, and disinfectant chemicals dosing plant is connect with sterile zones, chemicals dosing plant Start switch the elevator pump switch gearing with conditioning tank.
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CN110759596A (en) * 2019-11-09 2020-02-07 湖南瑞民博环境工程有限公司 Pretreatment process for breeding wastewater in pig farm
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CN115196778B (en) * 2022-04-20 2023-08-15 广西建工科净源生态环保产业投资有限公司 Method and system for pre-sterilizing infectious medical wastewater
CN117059292B (en) * 2023-08-16 2024-03-29 西南科技大学 Pretreatment system for solid-liquid separation of nuclear medical radioactive wastewater and application method

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