CN113024014A - Hospital sewage treatment method - Google Patents

Hospital sewage treatment method Download PDF

Info

Publication number
CN113024014A
CN113024014A CN202110120632.1A CN202110120632A CN113024014A CN 113024014 A CN113024014 A CN 113024014A CN 202110120632 A CN202110120632 A CN 202110120632A CN 113024014 A CN113024014 A CN 113024014A
Authority
CN
China
Prior art keywords
parts
wastewater
hospital
microorganisms
treatment method
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
Application number
CN202110120632.1A
Other languages
Chinese (zh)
Inventor
孟应斗
吴钢
冯建军
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Yunnan Heze Environmental Protection Technology Co ltd
Original Assignee
Yunnan Heze Environmental Protection Technology Co ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Yunnan Heze Environmental Protection Technology Co ltd filed Critical Yunnan Heze Environmental Protection Technology Co ltd
Priority to CN202110120632.1A priority Critical patent/CN113024014A/en
Publication of CN113024014A publication Critical patent/CN113024014A/en
Pending legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F9/00Multistage treatment of water, waste water or sewage
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/02Treatment of water, waste water, or sewage by heating
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/38Treatment of water, waste water, or sewage by centrifugal separation
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/52Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
    • C02F1/5236Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/52Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
    • C02F1/54Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using organic material
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/52Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
    • C02F1/54Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using organic material
    • C02F1/56Macromolecular compounds
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2103/00Nature of the water, waste water, sewage or sludge to be treated
    • C02F2103/003Wastewater from hospitals, laboratories and the like, heavily contaminated by pathogenic microorganisms
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F3/00Biological treatment of water, waste water, or sewage
    • C02F3/34Biological treatment of water, waste water, or sewage characterised by the microorganisms used
    • C02F3/348Biological treatment of water, waste water, or sewage characterised by the microorganisms used characterised by the way or the form in which the microorganisms are added or dosed

Landscapes

  • 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)

Abstract

The invention belongs to the field of sewage treatment, and particularly relates to a hospital sewage treatment method, which comprises the following steps: s1, sewage sterilization: after collecting sewage generated by a hospital, continuously passing through a tubular sterilization machine for sterilization to obtain sterilized wastewater; s2, microbial treatment: cooling the sterilized wastewater, and adding microorganisms into the cooled wastewater, wherein the addition amount of the microorganisms is 1-6% of the weight of the wastewater; treating for 2-5 days; s3, centrifugal separation: carrying out centrifugal separation on the wastewater treated by the microorganisms in the step S2 by using a continuous flow centrifugal machine, discharging the centrifuged clear liquid to a flocculation tank, and killing thalli in a centralized manner; s4, flocculation treatment: adding a flocculating agent into the clear liquid discharged into the flocculating tank, stirring for 30-50 minutes, and standing for 60-120 minutes; directly discharging the supernatant; the addition amount of the flocculating agent is 1-10% of the weight of the clear liquid. The invention effectively removes COD in the hospital sewagecrBOD and NH3‑N。

Description

Hospital sewage treatment method
Technical Field
The invention belongs to the technical field of sewage treatment, and particularly relates to a hospital sewage treatment method.
Background
The hospital sewage refers to sewage discharged from hospitals (comprehensive hospitals, professional hospitals and other types of hospitals) to natural environments or urban pipelines. The water quality varies with the nature and scale of the hospital and the area in which it is located. The amount of sewage discharged by each sickbed per day is about 200-1000L. The main pollutants contained in hospital sewage are: pathogens (parasitic eggs, pathogenic bacteria, viruses, etc.), organic matter, floating and suspended matter, radioactive contaminants, etc., untreatedThe total bacteria content in the raw sewage reaches 108More than one/mL. The principle of hospital sewage treatment is as follows: the quality and the flow are divided, and the local separation treatment is carried out, so that the pollution is eliminated nearby at a pollution source. The main treatment method is precipitation and disinfection. The disinfectant commonly used in China is liquid chlorine, and in order to improve the disinfection efficiency and prevent secondary pollution, the ozonization method is mostly adopted for disinfection, and the discharge standard can be reached after disinfection treatment. The sludge produced in the treatment process is usually treated by a lime disinfection method and a high-temperature composting method. The prior hospital sewage treatment method is used for treating COD in sewagecrBOD and NH3The removal rate of-N is low.
Disclosure of Invention
The technical problem to be solved by the invention is to provide a hospital sewage treatment method for improving COD in sewagecrBOD and NH3-removal rate of N.
In order to solve the technical problems, the technical scheme of the invention is as follows:
a hospital sewage treatment method comprises the following steps:
s1, sewage sterilization: after collecting sewage generated by a hospital, continuously passing through a tubular sterilization machine for sterilization to obtain sterilized wastewater;
s2, microbial treatment: cooling the sterilized wastewater, and adding microorganisms into the cooled wastewater, wherein the addition amount of the microorganisms is 1-6% of the weight of the wastewater; treating for 2-5 days;
s3, centrifugal separation: carrying out centrifugal separation on the wastewater treated by the microorganisms in the step S2 by using a continuous flow centrifugal machine, discharging the centrifuged clear liquid to a flocculation tank, and killing thalli in a centralized manner;
s4, flocculation treatment: adding a flocculating agent into the clear liquid discharged into the flocculating tank, stirring for 30-50 minutes, and standing for 60-120 minutes; directly discharging the supernatant;
the addition amount of the flocculating agent is 1-10% of the weight of the clear liquid.
In the hospital sewage treatment method provided by the invention, the sterilization temperature in the step S1 is preferably 110-135 ℃.
In the hospital sewage treatment method provided by the present invention, preferably, the microorganism in step S2 is one or more of citrobacter buchneri, flavobacterium aquaticum, flavobacterium marinum, nitrobacter alkalophilus, bacillus subtilis, bacillus licheniformis, micrococcus luteus, rhizopus nigricans, rhizopus chinensis, ester producing yeast, bifidobacterium, mucor racemosus and mucor rouxii.
In the hospital sewage treatment method provided by the present invention, preferably, the microorganism is flavobacterium marinum, bacillus subtilis, rhizopus nigricans, ester producing yeast, bifidobacterium, mucor racemosus and mucor rouxii.
In the hospital sewage treatment method provided by the invention, the weight ratio of the flavobacterium marinum, the bacillus subtilis, the rhizopus nigricans, the ester-producing yeast, the bifidobacterium, the mucor racemosus and the mucor rouxii is preferably 1-5: 0.5-2: 1-3: 0.5-1: 1-5: 1-2.
In the hospital sewage treatment method provided by the invention, the weight ratio of the flavobacterium marinum, the bacillus subtilis, the rhizopus nigricans, the ester-producing yeast, the bifidobacterium, the mucor racemosus and the mucor rouxii is preferably 3:1:2:1:0.5:5: 1.
In the hospital sewage treatment method provided by the present invention, preferably, the added amount of the microorganism is 5% by weight of the wastewater.
In the hospital sewage treatment method provided by the invention, preferably, the flocculant mainly comprises the following raw materials in parts by weight: 10-35 parts of aluminum sulfate, 2-18 parts of tannin, 3-41 parts of acrylonitrile resin, 12-32 parts of azobisisobutyronitrile, 5-19 parts of sodium thiosulfate, 2-27 parts of sodium dodecyl benzene sulfonate, 7-33 parts of hexadecyl trimethyl ammonium bromide and 17-40 parts of acetic acid.
In the hospital sewage treatment method provided by the invention, preferably, the flocculant mainly comprises the following raw materials in parts by weight: 22 parts of aluminum sulfate, 13 parts of tannin, 6 parts of acrylonitrile resin, 13 parts of azodiisobutyronitrile, 9 parts of sodium thiosulfate, 7 parts of sodium dodecyl benzene sulfonate, 14 parts of hexadecyl trimethyl ammonium bromide and 23 parts of acetic acid.
By adopting the technical scheme, the tubular sterilization machine is adopted to treat the hospital sewageVarious pathogenic bacteria, viruses and other microorganisms in the feed are killed, so that the problem of environmental pollution caused by pathogenic bacteria is solved; decomposing organic matters in hospital sewage by using microorganisms, centrifuging by using a continuous flow centrifuge to remove thalli, and finally flocculating and precipitating the inorganic matters in the sewage by using a flocculating agent to effectively remove CODcrBOD and NH3-N. The bacillus subtilis and the mucor racemosus in the invention can reduce COD in hospital sewagecrBOD and NH3the-N content has a significant effect.
Detailed Description
The following further describes the embodiments of the present invention. It should be noted that the description of the embodiments is provided to help understanding of the present invention, but the present invention is not limited thereto. In addition, the technical features involved in the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
Example 1
The embodiment provides a hospital sewage treatment method, which comprises the following steps:
s1, sewage sterilization: after collecting sewage generated by a hospital, continuously passing through a tubular sterilization machine for sterilization to obtain sterilized wastewater; the sterilization temperature is 135 ℃.
S2, microbial treatment: cooling the sterilized wastewater, and adding microorganisms into the cooled wastewater, wherein the addition amount of the microorganisms is 6% of the weight of the wastewater; treating for 2 days; the microorganism is Flavobacterium marinum, Bacillus subtilis, Rhizopus nigricans, ester-producing yeast, Bifidobacterium, Mucor racemosus and Mucor rouxii, and the weight ratio of the microorganisms is 5:0.5:1:3:1:1: 2.
S3, centrifugal separation: carrying out centrifugal separation on the wastewater treated by the microorganisms in the step S2 by using a continuous flow centrifugal machine, discharging the centrifuged clear liquid to a flocculation tank, and killing thalli in a centralized manner;
s4, flocculation treatment: adding a flocculating agent into the clear liquid discharged into the flocculating tank, stirring for 30 minutes, and standing for 120 minutes; directly discharging the supernatant;
the addition amount of the flocculant is 1 percent of the weight of the clear solution.
The flocculant mainly comprises the following raw materials in parts by weight: 10 parts of aluminum sulfate, 18 parts of tannin, 3 parts of acrylonitrile resin, 32 parts of azodiisobutyronitrile, 5 parts of sodium thiosulfate, 27 parts of sodium dodecyl benzene sulfonate, 7 parts of hexadecyl trimethyl ammonium bromide and 17 parts of acetic acid.
Example 2
The embodiment provides a hospital sewage treatment method, which comprises the following steps:
s1, sewage sterilization: after collecting sewage generated by a hospital, continuously passing through a tubular sterilization machine for sterilization to obtain sterilized wastewater; the sterilization temperature is 110 ℃.
S2, microbial treatment: cooling the sterilized wastewater, and adding microorganisms into the cooled wastewater, wherein the addition amount of the microorganisms is 1% of the weight of the wastewater; treating for 5 days; the microorganism is Flavobacterium marinum, Bacillus subtilis, Rhizopus nigricans, ester-producing yeast, Bifidobacterium, Mucor racemosus and Mucor rouxii with a weight ratio of 1:2:2:1:0.5:5: 1.
S3, centrifugal separation: carrying out centrifugal separation on the wastewater treated by the microorganisms in the step S2 by using a continuous flow centrifugal machine, discharging the centrifuged clear liquid to a flocculation tank, and killing thalli in a centralized manner;
s4, flocculation treatment: adding a flocculating agent into the clear liquid discharged into the flocculating tank, stirring for 50 minutes, and standing for 60 minutes; directly discharging the supernatant;
the addition amount of the flocculant is 10 percent of the weight of the clear solution.
The flocculant mainly comprises the following raw materials in parts by weight: 35 parts of aluminum sulfate, 2 parts of tannin, 41 parts of acrylonitrile resin, 12 parts of azodiisobutyronitrile, 19 parts of sodium thiosulfate, 2 parts of sodium dodecyl benzene sulfonate, 33 parts of hexadecyl trimethyl ammonium bromide and 40 parts of acetic acid.
Example 3
The embodiment provides a hospital sewage treatment method, which comprises the following steps:
s1, sewage sterilization: after collecting sewage generated by a hospital, continuously passing through a tubular sterilization machine for sterilization to obtain sterilized wastewater; the sterilization temperature was 121 ℃.
S2, microbial treatment: cooling the sterilized wastewater, and adding microorganisms into the cooled wastewater, wherein the addition amount of the microorganisms is 5% of the weight of the wastewater; treating for 3 days; the microorganism is Flavobacterium marinum, Bacillus subtilis, Rhizopus nigricans, ester-producing yeast, Bifidobacterium, Mucor racemosus and Mucor rouxii with a weight ratio of 3:1:2:1:0.5:5: 1.
S3, centrifugal separation: carrying out centrifugal separation on the wastewater treated by the microorganisms in the step S2 by using a continuous flow centrifugal machine, discharging the centrifuged clear liquid to a flocculation tank, and killing thalli in a centralized manner;
s4, flocculation treatment: adding a flocculating agent into the clear liquid discharged into the flocculating tank, stirring for 40 minutes, and standing for 80 minutes; directly discharging the supernatant;
the addition amount of the flocculant is 5 percent of the weight of the clear solution.
The flocculant mainly comprises the following raw materials in parts by weight: 22 parts of aluminum sulfate, 13 parts of tannin, 6 parts of acrylonitrile resin, 13 parts of azodiisobutyronitrile, 9 parts of sodium thiosulfate, 7 parts of sodium dodecyl benzene sulfonate, 14 parts of hexadecyl trimethyl ammonium bromide and 23 parts of acetic acid.
Example 4
The embodiment provides a hospital sewage treatment method, which comprises the following steps:
s1, sewage sterilization: after collecting sewage generated by a hospital, continuously passing through a tubular sterilization machine for sterilization to obtain sterilized wastewater; the sterilization temperature was 115 ℃.
S2, microbial treatment: cooling the sterilized wastewater, and adding microorganisms into the cooled wastewater, wherein the addition amount of the microorganisms is 3% of the weight of the wastewater; treating for 4 days; the microorganism is Bacillus subtilis, Rhizopus nigricans, ester-producing yeast, Bacillus bifidus, Mucor racemosus and Mucor rouxii at a weight ratio of 1:2:1:0.5:5: 1.
S3, centrifugal separation: carrying out centrifugal separation on the wastewater treated by the microorganisms in the step S2 by using a continuous flow centrifugal machine, discharging the centrifuged clear liquid to a flocculation tank, and killing thalli in a centralized manner;
s4, flocculation treatment: adding a flocculating agent into the clear liquid discharged into the flocculating tank, stirring for 35 minutes, and standing for 80 minutes; directly discharging the supernatant;
the addition amount of the flocculant is 7 percent of the weight of the clear solution.
The flocculant mainly comprises the following raw materials in parts by weight: 18 parts of aluminum sulfate, 9 parts of tannin, 33 parts of acrylonitrile resin, 19 parts of azobisisobutyronitrile, 11 parts of sodium thiosulfate, 8 parts of sodium dodecyl benzene sulfonate, 27 parts of hexadecyl trimethyl ammonium bromide and 34 parts of acetic acid.
Example 5
The embodiment provides a hospital sewage treatment method, which comprises the following steps:
s1, sewage sterilization: after collecting sewage generated by a hospital, continuously passing through a tubular sterilization machine for sterilization to obtain sterilized wastewater; the sterilization temperature is 120 ℃.
S2, microbial treatment: cooling the sterilized wastewater, and adding microorganisms into the cooled wastewater, wherein the addition amount of the microorganisms is 3% of the weight of the wastewater; treating for 4 days; the microorganism is bacillus subtilis, rhizopus nigricans, bifidobacterium, mucor racemosus and mucor rouxii in a weight ratio of 1:2:0.5:5: 1.
S3, centrifugal separation: carrying out centrifugal separation on the wastewater treated by the microorganisms in the step S2 by using a continuous flow centrifugal machine, discharging the centrifuged clear liquid to a flocculation tank, and killing thalli in a centralized manner;
s4, flocculation treatment: adding a flocculating agent into the clear liquid discharged into the flocculating tank, stirring for 46 minutes, and standing for 90 minutes; directly discharging the supernatant;
the addition amount of the flocculant is 8 percent of the weight of the clear solution.
The flocculant mainly comprises the following raw materials in parts by weight: 31 parts of aluminum sulfate, 12 parts of tannin, 13 parts of acrylonitrile resin, 24 parts of azodiisobutyronitrile, 9 parts of sodium thiosulfate, 21 parts of sodium dodecyl benzene sulfonate, 16 parts of hexadecyl trimethyl ammonium bromide and 18 parts of acetic acid.
Example 6
The embodiment provides a hospital sewage treatment method, which comprises the following steps:
s1, sewage sterilization: after collecting sewage generated by a hospital, continuously passing through a tubular sterilization machine for sterilization to obtain sterilized wastewater; the sterilization temperature is 135 ℃.
S2, microbial treatment: cooling the sterilized wastewater, and adding microorganisms into the cooled wastewater, wherein the addition amount of the microorganisms is 4% of the weight of the wastewater; treating for 4 days; the microorganism is Flavobacterium nigerum, Rhizopus nigricans, ester-producing yeast, Bifidobacterium, Mucor racemosus and Mucor rouxii, and the weight ratio is 3:1:2:1:1: 2.
S3, centrifugal separation: carrying out centrifugal separation on the wastewater treated by the microorganisms in the step S2 by using a continuous flow centrifugal machine, discharging the centrifuged clear liquid to a flocculation tank, and killing thalli in a centralized manner;
s4, flocculation treatment: adding a flocculating agent into the clear liquid discharged into the flocculating tank, stirring for 39 minutes, and standing for 110 minutes; directly discharging the supernatant;
the addition amount of the flocculant is 4 percent of the weight of the clear solution.
The flocculant mainly comprises the following raw materials in parts by weight: 28 parts of aluminum sulfate, 15 parts of tannin, 27 parts of acrylonitrile resin, 30 parts of azobisisobutyronitrile, 11 parts of sodium thiosulfate, 13 parts of sodium dodecyl benzene sulfonate, 9 parts of hexadecyl trimethyl ammonium bromide and 21 parts of acetic acid.
Example 7
The embodiment provides a hospital sewage treatment method, which comprises the following steps:
s1, sewage sterilization: after collecting sewage generated by a hospital, continuously passing through a tubular sterilization machine for sterilization to obtain sterilized wastewater; the sterilization temperature is 125 ℃.
S2, microbial treatment: cooling the sterilized wastewater, and adding microorganisms into the cooled wastewater, wherein the addition amount of the microorganisms is 3% of the weight of the wastewater; treating for 3 days; the microorganism is Flavobacterium marinum, Bacillus subtilis, Rhizopus nigricans, ester-producing yeast, Bifidobacterium and Mucor rouxii in a weight ratio of 5:1:1:2:1: 2.
S3, centrifugal separation: carrying out centrifugal separation on the wastewater treated by the microorganisms in the step S2 by using a continuous flow centrifugal machine, discharging the centrifuged clear liquid to a flocculation tank, and killing thalli in a centralized manner;
s4, flocculation treatment: adding a flocculating agent into the clear liquid discharged into the flocculating tank, stirring for 44 minutes, and standing for 86 minutes; directly discharging the supernatant;
the addition amount of the flocculant is 7 percent of the weight of the clear solution.
The flocculant mainly comprises the following raw materials in parts by weight: 18 parts of aluminum sulfate, 11 parts of tannin, 3 parts of acrylonitrile resin, 32 parts of azodiisobutyronitrile, 16 parts of sodium thiosulfate, 18 parts of sodium dodecyl benzene sulfonate, 7 parts of hexadecyl trimethyl ammonium bromide and 17 parts of acetic acid.
Test examples
In order to verify the beneficial technical effects of the invention, the medical wastewater is treated according to the above examples, and then the quality of the treated water is detected, and the results are shown in table 1.
TABLE 1 Water quality results (mg/L) of Hospital waste Water treated in examples
Figure BDA0002922199030000101
As can be seen from the above table, COD in the hospital wastewater treated by the methods of examples 1 to 5crBOD and NH3The content of-N was significantly lower than that of the hospital wastewater treated by the methods of examples 6 and 7, in which COD was contained in the hospital wastewater treated by the method of example 3crBOD and NH3The lowest content of-N. Bacillus subtilis was reduced in the microorganism used in the microbial treatment in example 6 and Mucor racemosus was reduced in the microorganism used in the microbial treatment in example 7, and it was found that Bacillus subtilis and Mucor racemosus contribute to the reduction of COD in hospital wastewatercrBOD and NH3the-N content has a significant effect.
The embodiments of the present invention have been described in detail, but the present invention is not limited to the described embodiments. It will be apparent to those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, and the scope of protection is still within the scope of the invention.

Claims (9)

1. A hospital sewage treatment method is characterized by comprising the following steps:
s1, sewage sterilization: after collecting sewage generated by a hospital, continuously passing through a tubular sterilization machine for sterilization to obtain sterilized wastewater;
s2, microbial treatment: cooling the sterilized wastewater, and adding microorganisms into the cooled wastewater, wherein the addition amount of the microorganisms is 1-6% of the weight of the wastewater; treating for 2-5 days;
s3, centrifugal separation: carrying out centrifugal separation on the wastewater treated by the microorganisms in the step S2 by using a continuous flow centrifugal machine, discharging the centrifuged clear liquid to a flocculation tank, and killing thalli in a centralized manner;
s4, flocculation treatment: adding a flocculating agent into the clear liquid discharged into the flocculating tank, stirring for 30-50 minutes, and standing for 60-120 minutes; directly discharging the supernatant;
the addition amount of the flocculating agent is 1-10% of the weight of the clear liquid.
2. The hospital sewage treatment method according to claim 1, wherein the sterilization temperature in step S1 is 110-135 ℃.
3. The hospital sewage treatment method according to claim 1, wherein the microorganisms in step S2 are one or more of citrobacter buchneri, flavobacterium aquaticum, flavobacterium marinum, nitrobacter alkalophilus, bacillus subtilis, bacillus licheniformis, micrococcus luteus, rhizopus nigricans, rhizopus chinensis, ester-producing yeast, bifidobacterium, mucor racemosus, and mucor rouxii.
4. The hospital wastewater treatment method according to claim 3, wherein the microorganisms are Flavobacterium marinum, Bacillus subtilis, Rhizopus nigricans, Saccharomyces esterificans, Bifidobacterium longum, Mucor racemosus and Mucor rouxii.
5. The hospital sewage treatment method according to claim 4, wherein the weight ratio of the Flavobacterium marinum, the Bacillus subtilis, the Rhizopus nigricans, the ester-producing yeast, the Bifidobacterium longum, the Mucor racemosus and the Mucor rouxii is 1-5: 0.5-2: 1-3: 0.5-1: 1-5: 1-2.
6. The hospital sewage treatment method according to claim 5, wherein the weight ratio of Flavobacterium marinum, Bacillus subtilis, Rhizopus nigricans, Saccharomyces esterificans, Bifidobacterium longum, Mucor racemosus and Mucor rouxii is 3:1:2:1:0.5:5: 1.
7. The hospital sewage treatment method according to claim 1, wherein said microorganisms are added in an amount of 5% by weight of the wastewater.
8. The hospital sewage treatment method according to claim 1, wherein the flocculant is mainly composed of the following raw materials in parts by weight: 10-35 parts of aluminum sulfate, 2-18 parts of tannin, 3-41 parts of acrylonitrile resin, 12-32 parts of azobisisobutyronitrile, 5-19 parts of sodium thiosulfate, 2-27 parts of sodium dodecyl benzene sulfonate, 7-33 parts of hexadecyl trimethyl ammonium bromide and 17-40 parts of acetic acid.
9. The hospital sewage treatment method according to claim 8, wherein the flocculant is mainly composed of the following raw materials in parts by weight: 22 parts of aluminum sulfate, 13 parts of tannin, 6 parts of acrylonitrile resin, 13 parts of azodiisobutyronitrile, 9 parts of sodium thiosulfate, 7 parts of sodium dodecyl benzene sulfonate, 14 parts of hexadecyl trimethyl ammonium bromide and 23 parts of acetic acid.
CN202110120632.1A 2021-01-29 2021-01-29 Hospital sewage treatment method Pending CN113024014A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202110120632.1A CN113024014A (en) 2021-01-29 2021-01-29 Hospital sewage treatment method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202110120632.1A CN113024014A (en) 2021-01-29 2021-01-29 Hospital sewage treatment method

Publications (1)

Publication Number Publication Date
CN113024014A true CN113024014A (en) 2021-06-25

Family

ID=76459398

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202110120632.1A Pending CN113024014A (en) 2021-01-29 2021-01-29 Hospital sewage treatment method

Country Status (1)

Country Link
CN (1) CN113024014A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114906979A (en) * 2022-04-14 2022-08-16 郯城瑞源无害化处理有限公司 Photocatalytic anaerobic treatment process for sewage treatment

Citations (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101037655A (en) * 2006-11-29 2007-09-19 金明记 High-effective microorganism complex agent and method of using the same for treating city sewage
CN101585622A (en) * 2008-05-20 2009-11-25 北京锦奥华荣科技有限公司 Method and system for safely treating medical wastewater and capable of preventing microbial contamination
CN101591107A (en) * 2008-05-26 2009-12-02 北京锦奥华荣科技有限公司 The safe waste water treatment method of small hospital
CN103130335A (en) * 2011-11-27 2013-06-05 西安瑞捷生物科技有限公司 Germ composite polluted water treatment agent
CN103525870A (en) * 2013-10-23 2014-01-22 嘉兴学院 Microbial flocculant as well as preparation method and application thereof
CN205653303U (en) * 2016-03-18 2016-10-19 浙江汉诺软件有限公司 Hospital passes catch disease district sewage treatment plant
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
CN106947722A (en) * 2017-04-28 2017-07-14 连云港中新污水处理有限公司 Microbial bacterial agent and preparation method thereof and the application in sewage disposal
CN206599507U (en) * 2017-03-10 2017-10-31 珠海盛博环保科技有限公司 A kind of Medical wastewater treatment device
CN107935316A (en) * 2017-12-13 2018-04-20 四川知创空间孵化器管理有限公司 A kind of method for handling medical waste water
CN108503128A (en) * 2018-03-02 2018-09-07 云南龙帜环境工程有限公司 A kind for the treatment of process of pharmacy waste water
CN109020020A (en) * 2018-07-16 2018-12-18 成都赋阳技术开发有限公司 A kind of medical waste water processing unit
CN109896712A (en) * 2019-04-09 2019-06-18 黑龙江省福林环保科技有限公司 A kind of sewerage integrated treatment process of Green Hospital
CN109896713A (en) * 2019-04-09 2019-06-18 黑龙江省福林环保科技有限公司 A method of sewage is handled using ABS microbial bacterial agent
WO2019133923A1 (en) * 2017-12-28 2019-07-04 Sustainable Community Development, Llc. Microbial-based composition and method of use
CN110627300A (en) * 2018-06-25 2019-12-31 扬州市扬子江运动器材有限公司 Hospital sewage environmental protection processing system
CN111793565A (en) * 2019-04-09 2020-10-20 黑龙江省福林环保科技有限公司 ABS microbial agent for sewage treatment and preparation method thereof
CN111808756A (en) * 2020-06-10 2020-10-23 郑州和合生物工程技术有限公司 Microbial agent for treating catering grease wastewater and treatment method
CN211921141U (en) * 2020-03-26 2020-11-13 山东清德环保设备有限公司 Hospital virus waste water integration filters treatment device that disappears
CN211946662U (en) * 2019-12-03 2020-11-17 河南普洛斯环境工程有限公司 Bury formula medical sewage treatment plant integratively

Patent Citations (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101037655A (en) * 2006-11-29 2007-09-19 金明记 High-effective microorganism complex agent and method of using the same for treating city sewage
CN101585622A (en) * 2008-05-20 2009-11-25 北京锦奥华荣科技有限公司 Method and system for safely treating medical wastewater and capable of preventing microbial contamination
CN101591107A (en) * 2008-05-26 2009-12-02 北京锦奥华荣科技有限公司 The safe waste water treatment method of small hospital
CN103130335A (en) * 2011-11-27 2013-06-05 西安瑞捷生物科技有限公司 Germ composite polluted water treatment agent
CN103525870A (en) * 2013-10-23 2014-01-22 嘉兴学院 Microbial flocculant as well as preparation method and application thereof
CN205653303U (en) * 2016-03-18 2016-10-19 浙江汉诺软件有限公司 Hospital passes catch disease district sewage treatment plant
CN206599507U (en) * 2017-03-10 2017-10-31 珠海盛博环保科技有限公司 A kind of Medical wastewater treatment device
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
CN106947722A (en) * 2017-04-28 2017-07-14 连云港中新污水处理有限公司 Microbial bacterial agent and preparation method thereof and the application in sewage disposal
CN107935316A (en) * 2017-12-13 2018-04-20 四川知创空间孵化器管理有限公司 A kind of method for handling medical waste water
WO2019133923A1 (en) * 2017-12-28 2019-07-04 Sustainable Community Development, Llc. Microbial-based composition and method of use
CN108503128A (en) * 2018-03-02 2018-09-07 云南龙帜环境工程有限公司 A kind for the treatment of process of pharmacy waste water
CN110627300A (en) * 2018-06-25 2019-12-31 扬州市扬子江运动器材有限公司 Hospital sewage environmental protection processing system
CN109020020A (en) * 2018-07-16 2018-12-18 成都赋阳技术开发有限公司 A kind of medical waste water processing unit
CN109896712A (en) * 2019-04-09 2019-06-18 黑龙江省福林环保科技有限公司 A kind of sewerage integrated treatment process of Green Hospital
CN109896713A (en) * 2019-04-09 2019-06-18 黑龙江省福林环保科技有限公司 A method of sewage is handled using ABS microbial bacterial agent
CN111793565A (en) * 2019-04-09 2020-10-20 黑龙江省福林环保科技有限公司 ABS microbial agent for sewage treatment and preparation method thereof
CN211946662U (en) * 2019-12-03 2020-11-17 河南普洛斯环境工程有限公司 Bury formula medical sewage treatment plant integratively
CN211921141U (en) * 2020-03-26 2020-11-13 山东清德环保设备有限公司 Hospital virus waste water integration filters treatment device that disappears
CN111808756A (en) * 2020-06-10 2020-10-23 郑州和合生物工程技术有限公司 Microbial agent for treating catering grease wastewater and treatment method

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
许张昱: "湖州市医院污水处理模式及其监测的研究", 《湖州师范学院学报》 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114906979A (en) * 2022-04-14 2022-08-16 郯城瑞源无害化处理有限公司 Photocatalytic anaerobic treatment process for sewage treatment

Similar Documents

Publication Publication Date Title
JP5654005B2 (en) Waste water treatment method and waste water treatment system
US20090166280A1 (en) Wastewater purifying system in hospitals
Jiménez-Cisneros et al. The elimination of helminth ova, faecal coliforms, Salmonella and protozoan cysts by various physicochemical processes in wastewater and sludge
CN112243428B (en) System and method for treating wastewater and providing class A sludge
US20020189998A1 (en) Processes and apparatus for potable water purification that include bio-filtration, and treated water from such processes and apparatus
CN106977040A (en) The technique that slaughtering wastewater is handled using UCT
CN106746160B (en) Treatment method of vancomycin production wastewater
CN108164002A (en) A kind of microorganism and the method for nanoscale PAC built-up flocculants processing cultivation water
CN106746161A (en) A kind of rifamycin produces the processing method of waste water
CN113024014A (en) Hospital sewage treatment method
US20050112740A1 (en) Waste metals recycling-methods, processed and systems for the recycle of metals into coagulants
CN103739144A (en) Detergent synthesis wastewater treatment technology
Abdeen et al. Fecal coliform removal in a sulfate reduction, autotrophic denitrification and nitrification integrated (SANI) process for saline sewage treatment
CN111362505A (en) Treatment process of pig farm wastewater
WO2019200775A1 (en) Wastewater circulating cleaning treatment method capable of reducing sludge amount
JP3900796B2 (en) Method and apparatus for treating organic wastewater
JP6852214B2 (en) Sewage treatment system
CN113735392A (en) Method for treating preserved fruit processing wastewater
Fujioka et al. The microbial quality of a wetland reclamation facility used to produce an effluent for unrestricted non-potable reuse
CN105271617A (en) Internal consumption type antibiotic wastewater treatment process system
JP2020179390A (en) Sewage treatment system
CN110627300A (en) Hospital sewage environmental protection processing system
CN107352741A (en) A kind of processing method of dyeing wastewater
JP6741907B1 (en) Sewage treatment system
CN216445209U (en) Pig slaughtering wastewater treatment 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
RJ01 Rejection of invention patent application after publication

Application publication date: 20210625