CN109250868A - A kind of domestic sewage treatment process - Google Patents
A kind of domestic sewage treatment process Download PDFInfo
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- CN109250868A CN109250868A CN201811250701.5A CN201811250701A CN109250868A CN 109250868 A CN109250868 A CN 109250868A CN 201811250701 A CN201811250701 A CN 201811250701A CN 109250868 A CN109250868 A CN 109250868A
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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
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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
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
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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
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/286—Treatment of water, waste water, or sewage by sorption using natural organic sorbents or derivatives thereof
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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
- 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
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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
- 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
- C02F1/5263—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using natural chemical compounds
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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
- 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
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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
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/66—Treatment of water, waste water, or sewage by neutralisation; pH adjustment
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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
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/78—Treatment of water, waste water, or sewage by oxidation with ozone
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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
- C02F1/00—Treatment of water, waste water, or sewage
- C02F2001/007—Processes including a sedimentation step
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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
- C02F2303/00—Specific treatment goals
- C02F2303/02—Odour removal or prevention of malodour
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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
- C02F2303/00—Specific treatment goals
- C02F2303/04—Disinfection
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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
- C02F2305/00—Use of specific compounds during water treatment
- C02F2305/02—Specific form of oxidant
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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
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/34—Biological treatment of water, waste water, or sewage characterised by the microorganisms used
Abstract
The invention discloses a kind of domestic sewage treatment process, the following steps are included: S1, by sanitary sewage by being introduced into settling tank after grid sewage-removing machine, the addition modified beet fiber into sewage, is stirred while stirring, impurity elimination is filtered after standing oil-collecting recycling, obtains coagulation water；S2, anhydrous ferric trichloride and aminoglucose hydrochloride is added after adjusting the pH value of coagulation water, is passed through air while stirring, filters impurity elimination after stir process, obtain secondary treated wastewater；S3, it is added inorganic agent into secondary treated wastewater, through biofilm filtration impurity elimination after stir process, obtains tertiary treatment water；S4, carry out disinfection to tertiary treatment water processing, discharges after detection is qualified.The present invention passes through addition modified beet fiber, compounding addition anhydrous ferric trichloride and aminoglucose hydrochloride, addition inorganic agent, divide three steps that can effectively complete the operation such as sanitary sewage impurity elimination, decoloration, deodorizing, sterilization, pollutants removal rate is high, and treated, and discharge water water quality is qualified.
Description
Technical field
The present invention relates to technical field of sewage more particularly to a kind of domestic sewage treatment process.
Background technique
Sanitary sewage is the waste water being discharged in resident's daily life, is mainly derived from residential architecture and public building, is such as lived
Between residence, organ, school, hospital, shop, public place and industry hygiene etc..Pollutant contained by sanitary sewage is mainly
Organic matter (such as protein, carbohydrate, fat, urea, ammonia nitrogen) and a large amount of pathogenic microorganisms (such as parasitic ovum and enteron aisle
Virus spread etc.).The organic matter being present in sanitary sewage is extremely unstable, is easy corruption and generates stench.Bacterium and pathogen
Using organic matter in sanitary sewage as nutrition mass propagation, can lead to infectious disease from spreading prevalence.It therefore, must before sanitary sewage discharge
It must be handled.
With the development of the social economy, the mankind are continuously increased the demand of clean water, existing water source, protection are rationally utilized
Existing water source is not contaminated, administers life and industrial wastewater and reusing sewage, is not only the task of top priority that China town and country face,
It and is world today's property problem.In the prior art, the generally existing treatment process operation of the processing method of sanitary sewage is difficult, place
Manage that range is not wide, and single treatment amount is limited, and it is big to be widely present equipment investment, processing cost is high, and long processing period, treated
The problems such as water quality discharge is not up to standard.Based on above statement, the invention proposes a kind of domestic sewage treatment process.
Summary of the invention
The purpose of the present invention is to solve the generally existing treatment process fortune of the processing method of sanitary sewage in the prior art
Row is difficult, and process range is not wide, and single treatment amount is limited, and is widely present that equipment investment is big, and processing cost is high, process cycle
It is long, water quality that treated discharge problem not up to standard, and a kind of domestic sewage treatment process proposed.
A kind of domestic sewage treatment process, comprising the following steps:
S1, sedimentation: by sanitary sewage by being introduced into settling tank after grid sewage-removing machine, with the revolving speed of 800~1000r/min
Modified beet fiber is added into sewage by the input amount of 8~15mg/L while stirring, continues to be stirred 20 after addition
~40min filters impurity elimination after standing 4~8h oil-collecting recycling, obtains coagulation water；
S2, adjusting: the pH value of coagulation water is adjusted to 7~9, is added by the input amount of 2~4mg/L into coagulation water
Enter anhydrous ferric trichloride, aminoglucose hydrochloride is added into coagulation water by the input amount of 4~20mg/L, while stirring
It is passed through air, impurity elimination is filtered after 1~3h of stir process, obtains secondary treated wastewater；
S3, reaction: by the input amount of 10~18mg/L, in the revolving speed stirring with 800~1200r/min to two stage treatment
It is added inorganic agent in water, through biofilm filtration impurity elimination after 2~5h of stir process, obtains tertiary treatment water；
S4, disinfection: it is carried out disinfection processing using ozone to tertiary treatment water, is discharged after detection is qualified；
Modified beet fiber in the step S1 is made by following methods:
S1,30~50 parts by weight of beet fiber, 2~5 parts by weight of cellulase and deionized water 40 are added into reactor
~60 parts by weight, acid adding adjust pH value to 3.8~6.2, after digesting 0.5~1h at 40~48 DEG C, are heated to 85~105 DEG C,
3~8min is inactivated, mixture I is obtained；
S2, mixture I is added in high-speed mixer, the Sodium Polyacrylate of 18~25 parts by weight is added, in 108~
After 125 DEG C are stirred 10~20min, be cooled to 60~80 DEG C, be added 5~12 parts by weight of atlapulgite, potassium permanganate 1~
1~3 parts by weight of 1.8 parts by weight, 3~8 parts by weight of organobentonite and silane coupling agent, after 0.5~1h of stir process, vacuum is dense
Contracting, crushed after being dried are 50~80 mesh to get modified beet fiber at partial size；
Inorganic agent in the step S3 is made by following methods:
S1, by 20~40 parts by weight of calamus, 20~40 parts by weight of cattail, 8~15 parts by weight of climbing groundsel, sansevieria trifasciata prain 30~50
Parts by weight are put into extractor, and the deionized water of 80~120 parts by weight is added；The aluminium chloride and 10 of 5~10 parts by weight is added
The calper calcium peroxide of~15 parts by weight after being stirred, controlled at 105~125 DEG C of 3~5h of processing, filters to obtain extracting solution；
S2, extracting solution is added in Alcohol-settling tank, adds ethyl alcohol to obtain mixed liquor to alcohol content for 34.5~43%, mixing is added
The liquor potassic permanganate that 0.08~0.15 times of liquid gross mass after being uniformly mixed, stands 24~30h, then filters, is centrifuged,
Heating recovery ethyl alcohol is up to inorganic agent.
Preferably, in the step S2, the mass ratio of anhydrous ferric trichloride and aminoglucose hydrochloride is 1:2~5.
A kind of domestic sewage treatment process proposed by the present invention, has the advantages that
1, the present invention is by sanitary sewage after grid sewage-removing machine filters, and in settling tank plus modified beet fiber settled
Filter, deoils, impurity elimination；Then after being adjusted to proper pH level, add anhydrous ferric trichloride and aminoglucose hydrochloride, after ventilation treatment
Impurity elimination is filtered again；Then it plus after inorganic agent reaction, using biofilm filtration impurity elimination, is most discharged afterwards through ozone sterilization up to qualified
Water；Domestic sewage treatment process proposed by the present invention by first adding modified beet fiber treatment, then compounds the anhydrous trichlorine of addition
Change iron and aminoglucose hydrochloride processing, finally add inorganic agent processing, point three steps can effectively complete sanitary sewage
The operation such as miscellaneous, decoloration, deodorizing, sterilization；Suspended matter, grease, COD, BOD, SS, ammonia nitrogen, phosphate and harmful microorganism in sewage
Removal rate has reached 97% or more, and pollutants removal rate is high, and treated, and discharge water water quality is qualified.
2, the present invention digests beet fiber, after inactivation, addition polymerization sodium acrylate, atlapulgite, potassium permanganate, organic swelling
Soil and silane coupling agent are modified it, and gained modified beet fiber obtains pole while keeping from height flocculation
Good bonding, absorption, decoloration and sedimentation capacity, extremely strong physical-chemical reaction activity, can quickly dispersing and dissolving in life
It in sewage, and reacts with polluter therein, realizes the effect of rapid flocculation, sedimentation.
3, the present invention carries out synergistic compounding using anhydrous ferric trichloride and aminoglucose hydrochloride, can be with sanitary sewage
In pollutant realization fast and accurately combine, promote pollutant to be completed at the same time physical dispersion and chemical breakdown double reaction, grind
Study carefully it is demonstrated experimentally that being compounded during sanitary sewage disposal and add the two, the reaction speed in treatment process can be dramatically speeded up,
Improve reaction efficiency.
4, the inorganic agent that the present invention uses, can be effectively by calamus, cattail, thousand by addition aluminium chloride and calper calcium peroxide
In light, the antimicrobial factors in sansevieria trifasciata prain and purification factor propose, improve extraction efficiency, utilize potassium permanganate and extracting solution mixing oxygen
Change, extracting solution is made to have the function of that excellent sterilization, deodorization, absorption and decoloration, clean-up effect are significant.
5, domestic sewage treatment process proposed by the present invention, easy to operate, reaction speed is fast, and treating capacity is big, processing cost
Low, nonhazardous substance generates in treatment process, not will cause secondary pollution, solves the processing side of sanitary sewage in the prior art
Method generally existing treatment process operation is difficult, and process range is not wide, and single treatment amount is limited, and it is big to be widely present equipment investment,
Processing cost is high, long processing period, and water quality that treated discharges problem not up to standard, and preparation method is simple, preparation condition temperature
With, it is easy to industrialized production, it can must be widely applied.
Specific embodiment
Combined with specific embodiments below the present invention is made further to explain.
Embodiment one
A kind of domestic sewage treatment process proposed by the present invention, comprising the following steps:
S1, sedimentation: it by sanitary sewage by being introduced into settling tank after grid sewage-removing machine, is stirred with the revolving speed side of 800r/min
Modified beet fiber is added into sewage by the input amount of 8mg/L for side, continues to be stirred 20min after addition, stands 4h
Impurity elimination is filtered after oil-collecting recycling, obtains coagulation water；
S2, adjusting: the pH value of coagulation water is adjusted to 7, is added by the input amount of 2mg/L into coagulation water anhydrous
Ferric trichloride is added aminoglucose hydrochloride into coagulation water by the input amount of 4mg/L, is passed through air while stirring,
Impurity elimination is filtered after stir process 1h, obtains secondary treated wastewater；
S3, reaction: by the input amount of 10mg/L, in the revolving speed stirring with 800r/min into secondary treated wastewater at addition
Agent is managed, through biofilm filtration impurity elimination after stir process 2h, obtains tertiary treatment water；
S4, disinfection: it is carried out disinfection processing using ozone to tertiary treatment water, is discharged after detection is qualified；
Modified beet fiber in the step S1 is made by following methods:
S1,30 parts by weight of beet fiber, 40 parts by weight of 2 parts by weight of cellulase and deionized water are added into reactor,
Acid adding adjusts pH value to 3.8, after digesting 0.5h at 40 DEG C, is heated to 85 DEG C, inactivates 3min, obtain mixture I；
S2, mixture I is added in high-speed mixer, the Sodium Polyacrylate of 18 parts by weight is added, it is mixed in 108 DEG C of stirrings
After closing 10min, be cooled to 60 DEG C, be added 5 parts by weight of atlapulgite, 1 parts by weight of potassium permanganate, 3 parts by weight of organobentonite and
1 parts by weight of silane coupling agent, after stir process 0.5h, vacuum concentration, crushed after being dried are 50 mesh to get modified beet at partial size
Fiber；
Inorganic agent in the step S3 is made by following methods:
S1,20 parts by weight of calamus, 20 parts by weight of cattail, 8 parts by weight of climbing groundsel, 30 parts by weight of sansevieria trifasciata prain are put into extraction
In tank, the deionized water of 80 parts by weight is added；The aluminium chloride of 5 parts by weight and the calper calcium peroxide of 10 parts by weight is added, is stirred
Afterwards, controlled at 105 DEG C of processing 3h, extracting solution is filtered to obtain；
S2, extracting solution is added in Alcohol-settling tank, adds ethyl alcohol to obtain mixed liquor to alcohol content for 34.5%, it is total that mixed liquor is added
The liquor potassic permanganate that 0.08 times of quality after being uniformly mixed, stands for 24 hours, then filters, is centrifuged, and heating recovery ethyl alcohol is
Obtain inorganic agent.
The domestic sewage treatment process that the present embodiment proposes, reaction speed is fast, and decoloration deodorizing effect is good, water quality that treated
Meet discharge standard, discharge water ph value is 6.7, and removal efficiency is 100% in sewage；Grease removal rate is 99.7%；COD
Removal rate is 99.3%；BOD removal rate is 99.1%；SS removal rate is 98.1%；Ammonia nitrogen removal frank is 97.3%；Phosphate is gone
Except rate is 98.5%；Harmful microorganism removal rate is 99.1%, and pollutants removal rate is high.
Embodiment two
A kind of domestic sewage treatment process proposed by the present invention, comprising the following steps:
S1, sedimentation: it by sanitary sewage by being introduced into settling tank after grid sewage-removing machine, is stirred with the revolving speed side of 900r/min
Modified beet fiber is added into sewage by the input amount of 12mg/L for side, continues to be stirred 30min after addition, stands 6h
Impurity elimination is filtered after oil-collecting recycling, obtains coagulation water；
S2, adjusting: the pH value of coagulation water is adjusted to 8, is added by the input amount of 3mg/L into coagulation water anhydrous
Ferric trichloride is added aminoglucose hydrochloride into coagulation water by the input amount of 12mg/L, is passed through air while stirring,
Impurity elimination is filtered after stir process 2h, obtains secondary treated wastewater；
S3, reaction: it by the input amount of 14mg/L, is added in the revolving speed stirring with 1000r/min into secondary treated wastewater
Inorganic agent obtains tertiary treatment water through biofilm filtration impurity elimination after stir process 3.5h；
S4, disinfection: it is carried out disinfection processing using ozone to tertiary treatment water, is discharged after detection is qualified；
Modified beet fiber in the step S1 is made by following methods:
S1,40 parts by weight of beet fiber, 50 weight of 3.5 parts by weight of cellulase and deionized water are added into reactor
Part, acid adding adjusts pH value to 5, after digesting 0.8h at 44 DEG C, is heated to 95 DEG C, inactivates 5min, obtain mixture I；
S2, mixture I is added in high-speed mixer, the Sodium Polyacrylate of 22 parts by weight is added, it is mixed in 115 DEG C of stirrings
After closing 15min, 70 DEG C are cooled to, 8 parts by weight of atlapulgite, 1.4 parts by weight of potassium permanganate, 5 parts by weight of organobentonite are added
With 2 parts by weight of silane coupling agent, after stir process 0.8h, vacuum concentration, crushed after being dried are 65 mesh to get modified sweet tea at partial size
Dish fiber；
Inorganic agent in the step S3 is made by following methods:
S1,30 parts by weight of calamus, 30 parts by weight of cattail, 12 parts by weight of climbing groundsel, 40 parts by weight of sansevieria trifasciata prain are put into and is mentioned
It takes in tank, the deionized water of 100 parts by weight is added；The aluminium chloride of 8 parts by weight and the calper calcium peroxide of 12 parts by weight is added, stirring is mixed
After conjunction, controlled at 115 DEG C of processing 4h, extracting solution is filtered to obtain；
S2, extracting solution is added in Alcohol-settling tank, adds ethyl alcohol to obtain mixed liquor to alcohol content for 38.5%, it is total that mixed liquor is added
The liquor potassic permanganate that 0.12 times of quality after being uniformly mixed, stands 27h, then filters, is centrifuged, and heating recovery ethyl alcohol is
Obtain inorganic agent.
The domestic sewage treatment process that the present embodiment proposes, reaction speed is fast, and decoloration deodorizing effect is good, water quality that treated
Meet discharge standard, discharge water ph value is 6.9, and removal efficiency is 100% in sewage；Grease removal rate is 100%；COD
Removal rate is 99.9%；BOD removal rate is 99.7%；SS removal rate is 98.8%；Ammonia nitrogen removal frank is 98.3%；Phosphate is gone
Except rate is 99.1%；Harmful microorganism removal rate is 99.6%, and pollutants removal rate is high.
Embodiment three
A kind of domestic sewage treatment process proposed by the present invention, comprising the following steps:
S1, sedimentation: it by sanitary sewage by being introduced into settling tank after grid sewage-removing machine, is stirred with the revolving speed side of 1000r/min
It mixes side and modified beet fiber is added into sewage by the input amount of 15mg/L, continue to be stirred 40min after addition, stand
Impurity elimination is filtered after 8h oil-collecting recycling, obtains coagulation water；
S2, adjusting: the pH value of coagulation water is adjusted to 9, is added by the input amount of 4mg/L into coagulation water anhydrous
Ferric trichloride is added aminoglucose hydrochloride into coagulation water by the input amount of 20mg/L, is passed through air while stirring,
Impurity elimination is filtered after stir process 3h, obtains secondary treated wastewater；
S3, reaction: it by the input amount of 18mg/L, is added in the revolving speed stirring with 1200r/min into secondary treated wastewater
Inorganic agent obtains tertiary treatment water through biofilm filtration impurity elimination after stir process 5h；
S4, disinfection: it is carried out disinfection processing using ozone to tertiary treatment water, is discharged after detection is qualified；
Modified beet fiber in the step S1 is made by following methods:
S1,50 parts by weight of beet fiber, 60 parts by weight of 5 parts by weight of cellulase and deionized water are added into reactor,
Acid adding adjusts pH value to 6.2, after digesting 1h at 48 DEG C, is heated to 105 DEG C, inactivates 8min, obtain mixture I；
S2, mixture I is added in high-speed mixer, the Sodium Polyacrylate of 25 parts by weight is added, it is mixed in 125 DEG C of stirrings
After closing 20min, 80 DEG C are cooled to, 12 parts by weight of atlapulgite, 1.8 parts by weight of potassium permanganate, 8 parts by weight of organobentonite are added
With 3 parts by weight of silane coupling agent, after stir process 1h, vacuum concentration, crushed after being dried are 80 mesh to get modified beet at partial size
Fiber；
Inorganic agent in the step S3 is made by following methods:
S1,40 parts by weight of calamus, 40 parts by weight of cattail, 15 parts by weight of climbing groundsel, 50 parts by weight of sansevieria trifasciata prain are put into and is mentioned
It takes in tank, the deionized water of 120 parts by weight is added；The aluminium chloride of 10 parts by weight and the calper calcium peroxide of 15 parts by weight is added, stirs
After mixing, controlled at 125 DEG C of processing 5h, extracting solution is filtered to obtain；
S2, extracting solution is added in Alcohol-settling tank, adds ethyl alcohol to obtain mixed liquor to alcohol content for 43%, the total matter of mixed liquor is added
The liquor potassic permanganate of 0.15 times of amount after being uniformly mixed, stands 30h, then filters, is centrifuged, heating recovery ethyl alcohol to obtain the final product
Inorganic agent.
The domestic sewage treatment process that the present embodiment proposes, reaction speed is fast, and decoloration deodorizing effect is good, water quality that treated
Meet discharge standard, discharge water ph value is 7.2, and removal efficiency is 100% in sewage；Grease removal rate is 99.9%；COD
Removal rate is 99.5%；BOD removal rate is 99.3%；SS removal rate is 98.3%；Ammonia nitrogen removal frank is 97.5%；Phosphate is gone
Except rate is 98.7%；Harmful microorganism removal rate is 99.3%, and pollutants removal rate is high.
Comparative example one: replacing with beet fiber for the modified beet fiber in step S1, remaining is the same as the preparation pair of embodiment one
Ratio one.
The domestic sewage treatment process that this comparative example proposes, discharge water ph value are 6.3, and removal efficiency is in sewage
98.9%；Grease removal rate is 95.3%；COD removal rate is 91.7%；BOD removal rate is 90.5%；SS removal rate is
83.6%；Ammonia nitrogen removal frank is 85.4.3%；Removal rate of phosphate is 88.2%；Harmful microorganism removal rate is 79.9%.
Comparative example two: replacing with domestic sewage treating compound disclosed in the prior art for the inorganic agent in step S3, remaining
Comparative example two is prepared with embodiment one；
Domestic sewage treating compound disclosed in the prior art is prepared from the following raw materials in parts by weight: polyacrylamide 20-
50 parts, 10-20 parts of citric acid, 10-20 parts of cornstarch, 5-15 parts of coke ground-slag, 510 parts of active carbon, sodium alginate 20-30
Part, 5-10 parts of lactic acid bacteria, 5-10 parts of actinomyces, 6-12 parts of saccharomycete, 6-12 parts of bifidocaterium, 5-15 parts of photosynthetic bacteria, gemma bar
5-10 parts of bacterium, indigenous bacterium 5-15 parts；It is prepared with the following method: (1) by lactic acid bacteria, actinomyces, saccharomycete, bifidocaterium,
Photosynthetic bacteria, bacillus, the strain of indigenous bacterium are activated respectively, expand culture；(2) above-mentioned activation, expansion are cultivated
Each strain is inoculated into mixed bacteria culture medium and cultivates 48h, obtains composite bacteria liquid；(3) composite bacteria liquid is centrifugally separating to obtain
Complex microorganism；(4) by the resulting complex microorganism of step (4) and polyacrylamide, citric acid, cornstarch, coke ground-slag,
Active carbon, sodium alginate are mixed to get the domestic sewage treating compound.
The domestic sewage treatment process that this comparative example proposes, discharge water ph value are 7.5, and removal efficiency is in sewage
99.9%；Grease removal rate is 93.6%；COD removal rate is 99.1%；BOD removal rate is 99%；SS removal rate is 87.9%；
Ammonia nitrogen removal frank is 85.5%；Removal rate of phosphate is 92.5%；Harmful microorganism removal rate is 84.1%.
The present inventor is separately designed in step S2 by step described in above-described embodiment one and is individually added anhydrous ferric trichloride
Domestic sewage treatment process；The individually domestic sewage treatment process of addition aminoglucose hydrochloride；And it adds jointly anhydrous
Ferric trichloride and aminoglucose hydrochloride, and the mass ratio of anhydrous ferric trichloride and aminoglucose hydrochloride be 1:0.5~
11 domestic sewage treatment process；Then the removal rate for testing pollutant in above-mentioned domestic sewage treatment process respectively, obtain as
Lower result:
The individually domestic sewage treatment process of addition anhydrous ferric trichloride or aminoglucose hydrochloride discharges the PH of water
Value is respectively 8.3 and 5.7, suspended matter, grease, COD, BOD, SS, ammonia nitrogen, phosphate and harmful microorganism removal rate in sewage
It is low, it is no more than 85%；
Compounding addition anhydrous ferric trichloride and aminoglucose hydrochloride, and anhydrous ferric trichloride and glucosamine hydrochloric acid
The mass ratio of salt is greater than 1:1 or the domestic sewage treatment process less than 1:10, water quality that treated and independent anhydrous tri-chlorination
Treated that water quality is close for iron or aminoglucose hydrochloride, and pollutants removal rate is low；
Compounding addition anhydrous ferric trichloride and aminoglucose hydrochloride, and anhydrous ferric trichloride and glucosamine hydrochloric acid
The mass ratio of salt is the domestic sewage treatment process of 1:1~10, discharges the pH value of water between 6.2~7.8, suspends in sewage
Object, grease, COD, BOD, SS, ammonia nitrogen, phosphate and harmful microorganism removal rate have reached 90 or more %, there is water quality after processing
Certain raising；
Compounding addition anhydrous ferric trichloride and aminoglucose hydrochloride, and anhydrous ferric trichloride and glucosamine hydrochloric acid
The mass ratio of salt is the domestic sewage treatment process of 1:2~5, discharges the pH value of water between 6.7~7.2, suspends in sewage
Object, grease, COD, BOD, SS, ammonia nitrogen, phosphate and harmful microorganism removal rate have reached 97 or more %, there is water quality after processing
Significant raising；Especially when the mass ratio of anhydrous ferric trichloride and aminoglucose hydrochloride is 1:4, discharge that treated
The pH value of water is 6.9, and removal efficiency is 100% in sewage；Grease removal rate is 100%；COD removal rate is 99.9%；
BOD removal rate is 99.7%；SS removal rate is 98.8%；Ammonia nitrogen removal frank is 98.3%；Removal rate of phosphate is 99.1%；Have
Evil microorganism removal rate is 99.6%, and pollutants removal rate is high.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
Anyone skilled in the art in the technical scope disclosed by the present invention, according to the technique and scheme of the present invention and its
Inventive concept is subject to equivalent substitution or change, should be covered by the protection scope of the present invention.
Claims (2)
1. a kind of domestic sewage treatment process, which comprises the following steps:
S1, sedimentation: it by sanitary sewage by being introduced into settling tank after grid sewage-removing machine, is stirred with the revolving speed side of 800~1000r/min
It mixes side and modified beet fiber is added into sewage by the input amount of 8~15mg/L, continue to be stirred 20 after addition~
40min filters impurity elimination after standing 4~8h oil-collecting recycling, obtains coagulation water；
S2, adjusting: the pH value of coagulation water is adjusted to 7~9, nothing is added into coagulation water by the input amount of 2~4mg/L
Aqueous ferric chloride is added aminoglucose hydrochloride into coagulation water by the input amount of 4~20mg/L, is passed through while stirring
Air filters impurity elimination after 1~3h of stir process, obtains secondary treated wastewater；
S3, reaction: by the input amount of 10~18mg/L, in the revolving speed stirring with 800~1200r/min into secondary treated wastewater
Inorganic agent is added, through biofilm filtration impurity elimination after 2~5h of stir process, obtains tertiary treatment water；
S4, disinfection: it is carried out disinfection processing using ozone to tertiary treatment water, is discharged after detection is qualified；
Modified beet fiber in the step S1 is made by following methods:
S1,30~50 parts by weight of beet fiber, 2~5 parts by weight of cellulase and deionized water 40~60 are added into reactor
Parts by weight, acid adding adjust pH value to 3.8~6.2, after digesting 0.5~1h at 40~48 DEG C, are heated to 85~105 DEG C, inactivation 3
~8min obtains mixture I；
S2, mixture I is added in high-speed mixer, the Sodium Polyacrylate of 18~25 parts by weight is added, in 108~125 DEG C
After being stirred 10~20min, 60~80 DEG C are cooled to, 5~12 parts by weight of atlapulgite, 1~1.8 weight of potassium permanganate are added
Part, 1~3 parts by weight of 3~8 parts by weight of organobentonite and silane coupling agent, it is vacuum concentration, dry after 0.5~1h of stir process
After be ground into partial size be 50~80 mesh to get modified beet fiber；
Inorganic agent in the step S3 is made by following methods:
S1, by 20~40 parts by weight of calamus, 20~40 parts by weight of cattail, 8~15 parts by weight of climbing groundsel, 30~50 weight of sansevieria trifasciata prain
Part is put into extractor, and the deionized water of 80~120 parts by weight is added；The aluminium chloride and 10~15 of 5~10 parts by weight is added
The calper calcium peroxide of parts by weight after being stirred, controlled at 105~125 DEG C of 3~5h of processing, filters to obtain extracting solution；
S2, extracting solution is added in Alcohol-settling tank, adds ethyl alcohol to obtain mixed liquor to alcohol content for 34.5~43%, it is total that mixed liquor is added
The liquor potassic permanganate that 0.08~0.15 times of quality after being uniformly mixed, stands 24~30h, then filters, is centrifuged, heating
Ethyl alcohol is recycled up to inorganic agent.
2. a kind of domestic sewage treatment process according to claim 1, which is characterized in that in the step S2, anhydrous three
The mass ratio for afforesting iron and aminoglucose hydrochloride is 1:2~5.
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| CN110201643A (en) * | 2019-06-13 | 2019-09-06 | 魏健 | A kind of antichlor of high-efficient and lasting and preparation method thereof |
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Address after: 457000 Yumen Road, Hualong District, Puyang City, Henan Province Applicant after: Chen Zhi Address before: 457000 Yumen Road, Hualong District, Puyang City, Henan Province, No. 4, No. 3 Family Building of the Economic and Trade Commission Applicant before: Chen Zhi |
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