CN107365017A - domestic sewage treatment process - Google Patents

domestic sewage treatment process Download PDF

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Publication number
CN107365017A
CN107365017A CN201710610593.7A CN201710610593A CN107365017A CN 107365017 A CN107365017 A CN 107365017A CN 201710610593 A CN201710610593 A CN 201710610593A CN 107365017 A CN107365017 A CN 107365017A
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CN
China
Prior art keywords
sewage
pond
water
pool
added
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Pending
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CN201710610593.7A
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Chinese (zh)
Inventor
薛海生
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Anhui Haidong Environmental Protection Technology Co Ltd
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Anhui Haidong Environmental Protection Technology Co Ltd
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Publication date
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Priority to CN201710610593.7A priority Critical patent/CN107365017A/en
Publication of CN107365017A publication Critical patent/CN107365017A/en
Pending legal-status Critical Current

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    • 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
    • C02F1/001Processes for the treatment of water whereby the filtration technique is of importance
    • 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
    • C02F1/28Treatment of water, waste water, or sewage by sorption
    • C02F1/285Treatment of water, waste water, or sewage by sorption using synthetic organic sorbents
    • 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
    • C02F1/40Devices for separating or removing fatty or oily substances or similar floating 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
    • C02F1/44Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
    • C02F1/444Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by ultrafiltration or microfiltration
    • 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
    • C02F1/50Treatment of water, waste water, or sewage by addition or application of a germicide or by oligodynamic treatment
    • 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
    • C02F3/30Aerobic and anaerobic processes
    • C02F3/302Nitrification and denitrification treatment
    • 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
    • C02F3/32Biological treatment of water, waste water, or sewage characterised by the animals or plants used, e.g. algae
    • C02F3/322Biological treatment of water, waste water, or sewage characterised by the animals or plants used, e.g. algae use of algae
    • C02F3/325Biological treatment of water, waste water, or sewage characterised by the animals or plants used, e.g. algae use of algae as symbiotic combination of algae and bacteria
    • 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

Abstract

The present invention relates to sewage treatment area, there is provided a kind of domestic sewage treatment process, comprises the following steps:Coarse filtration, the processing of oxygen-enriched pond, set hollow fiber microfiltration membrane to be filtered in bioselection groove, anti-nitration reaction carried out in anoxic biochemistry pool, sewage carries out mud-water separation, sewage and is sufficiently mixed in ozone contact tank in contact sterilizing, regeneration pond to utilize chlorophyll processing in second pond.Blue-green algae energy a large amount of absorbed nitrogen, phosphorus of the present invention, and acetic acid helps to kill blue-green algae in sewage, chlorophyll can have good suction-operated to miscellaneous bacteria in sewage and suspended particulate, and after the solidification of lactic acid bacteria, lactic acid bacteria absorption is mingled with the chlorophyll formation precipitation of miscellaneous bacteria and suspended particulate, so that bacterial content substantially reduces in sewage.

Description

Domestic sewage treatment process
Technical field
The present invention relates to sewage treatment area, and in particular to a kind of domestic sewage treatment process.
Background technology
China《Law on the Prevention and Treatment of Water Pollution》Provide the residential block, tourist attractions, degree to municipal sewage collection system system can not be included The sewage of the scattered crowd settlement discharge such as false village, sanatorium, airport, railway station, economic development zone and the land of independent industries and mining area Industrial wastewater answer treatment in situ qualified discharge.Sanatorium, large hotel hotel, large-scale restaurant, amusement and travel holiday village, landscape Area mountain villa, Expressway Service are all dispersant type domestic wastewater emission sources.Sanatorium, holiday village, mountain villa are typically all close near the mountain Water, away from city, it can not be connected with urban drainage pipe network.Sensitive water body is additionally related to, therefore the standard discharged requires very high, If realizing qualified discharge, the investment of sewage treatment facility can be very big, and operating cost also can be improved accordingly.
With the development of economy and society, people's living standard more and more higher, domestic sewage yield is increasing, so Need to handle substantial amounts of sanitary sewage to reach discharge standard.And sewage nitrogen, phosphorus after current handling process processing Content is still higher, there is many influences on water quality.
The content of the invention
The technical problems to be solved by the invention are to provide a kind of domestic sewage treatment process.
The technical problems to be solved by the invention are realized using following technical scheme:
A kind of domestic sewage treatment process, comprises the following steps:
(1) sanitary sewage enters oil interceptor after first passing around mechanical grille coarse filtration;
(2) oil interceptor water outlet is pumped into oxygen-enriched pond, and it is 24.5% to maintain oxygen-enriched pond oxygen concentration, and indigo plant is planted in oxygen-enriched pond Algae, sewage are sent into acidification pool after 2-3 hours are handled in oxygen-enriched pond, and it is 6.88-6.90 to maintain its PH by acetic acid in acidification pool;
(3) sewage arrives preliminary sedimentation tank by inlet water lifting pumps lifting, and solids content few sewage in preliminary sedimentation tank top is pumped into life Thing selects groove, sets hollow fiber microfiltration membrane to be filtered in bioselection groove, and being added in bioselection groove has hydrogen peroxide, according to It is standard that 0.01kg hydrogen peroxide is added per cubic meter of water;
(4) sewage that bioselection groove comes out, which is sent into anoxic biochemistry pool, carries out anti-nitration reaction, and water outlet gravity flow enters Oxygen biochemistry pool;
(5) sewage come from anoxic biochemistry pool is aerated in aerobic biochemical pool carries out aerobic biochemical reaction, a water outlet part Anoxic biochemistry pool is back to by reflux pump as nitrification liquid, carries out anti-nitration reaction;Another part is flowed into certainly by downflow weir Enter second pond;
(6) sewage come from aerobic biochemical pool carries out mud-water separation in second pond, and sludge is in the sludge bucket of second pond Deposition concentration, storage basin being discharged into by sludge valve by fluid pressure, top clarified solution enters clear water reserviors by downflow weir gravity flow, Partial sludge in storage basin is back to hydrolysis acidification pool, is hydrolyzed, and sludge is returned after dehydration by afforesting in a manner of soil It is natural;
(7) water outlet come from second pond flows automatically to clear water reserviors, is then transported to biological activated carbon reactor, water with filter pump Enter from the bottom of biological activated carbon reactor, two biological activated carbon reactors are in parallel, and built-in activated carbon, water outlet passes through top Downflow weir flows automatically to ozone contact tank;
(8) clear water come from biological activated carbon reactor is and caused smelly in ozone generator in ozone contact tank Carrier of oxygen is sufficiently mixed contact sterilizing by sterilizing gas distributor in ozone contact tank;
(9) sewage after sterilizing is sent into regeneration pond, chlorophyll is added to the sewage for entering regeneration pond, according to every cube Rice water adds 0.01kg chlorophyll and is defined, and then by water conservancy with orifice plate jet to lactic acid bacteria web plate, the water of outflow can discharge.
Further, acidification pool acidification is sent into the water outlet of bioselection groove in the step (2), pH value in acidification pool Stabilization adds the OPC solution that procyanidin concentration is 0.25~1mg/mL, sewage into acidification pool in 6.7-6.8 Anoxic biochemistry pool is re-fed into after processing.
Further, it is added with triclosan in the anoxic biochemistry pool.
Further, Soybean Peptide is also added with the anoxic biochemistry pool, addition adds according to every cubic metre of sewage 0.1kg Soybean Peptides are defined.
Further, being added in the aerobic biochemical pool has calcium sulfate or barium sulfate.
Further, the water of outflow is then exhausted from after sedimentation basin in the step (9), is added with the sedimentation basin Konjaku powder, konjaku powder addition are 2 times of calcium sulfate or barium sulfate addition.
The beneficial effects of the invention are as follows:Blue-green algae can largely absorbed nitrogen, phosphorus, and acetic acid helps to kill blue-green algae in sewage, leaf Green element can have good suction-operated to miscellaneous bacteria in sewage and suspended particulate, and after the solidification of lactic acid bacteria, lactic acid bacteria Absorption is mingled with the chlorophyll formation precipitation of miscellaneous bacteria and suspended particulate, so that bacterial content substantially reduces in sewage.
Embodiment
In order that the technical means, the inventive features, the objects and the advantages of the present invention are easy to understand, tie below Specific embodiment is closed, the present invention is expanded on further.
Embodiment 1
A kind of domestic sewage treatment process, comprises the following steps:
(1) sanitary sewage enters oil interceptor after first passing around mechanical grille coarse filtration;
(2) oil interceptor water outlet is pumped into oxygen-enriched pond, and it is 24.5% to maintain oxygen-enriched pond oxygen concentration, and indigo plant is planted in oxygen-enriched pond Algae, sewage are sent into acidification pool after 2-3 hours are handled in oxygen-enriched pond, and it is 6.88-6.90 to maintain its PH by acetic acid in acidification pool;
(3) sewage arrives preliminary sedimentation tank by inlet water lifting pumps lifting, and solids content few sewage in preliminary sedimentation tank top is pumped into life Thing selects groove, sets hollow fiber microfiltration membrane to be filtered in bioselection groove, and being added in bioselection groove has hydrogen peroxide, according to It is standard that 0.01kg hydrogen peroxide is added per cubic meter of water;
(4) sewage that bioselection groove comes out, which is sent into anoxic biochemistry pool, carries out anti-nitration reaction, and water outlet gravity flow enters Oxygen biochemistry pool;
(5) sewage come from anoxic biochemistry pool is aerated in aerobic biochemical pool carries out aerobic biochemical reaction, a water outlet part Anoxic biochemistry pool is back to by reflux pump as nitrification liquid, carries out anti-nitration reaction;Another part is flowed into certainly by downflow weir Enter second pond;
(6) sewage come from aerobic biochemical pool carries out mud-water separation in second pond, and sludge is in the sludge bucket of second pond Deposition concentration, storage basin being discharged into by sludge valve by fluid pressure, top clarified solution enters clear water reserviors by downflow weir gravity flow, Partial sludge in storage basin is back to hydrolysis acidification pool, is hydrolyzed, and sludge is returned after dehydration by afforesting in a manner of soil It is natural;
(7) water outlet come from second pond flows automatically to clear water reserviors, is then transported to biological activated carbon reactor, water with filter pump Enter from the bottom of biological activated carbon reactor, two biological activated carbon reactors are in parallel, and built-in activated carbon, water outlet passes through top Downflow weir flows automatically to ozone contact tank;
(8) clear water come from biological activated carbon reactor is and caused smelly in ozone generator in ozone contact tank Carrier of oxygen is sufficiently mixed contact sterilizing by sterilizing gas distributor in ozone contact tank;
(9) sewage after sterilizing is sent into regeneration pond, chlorophyll is added to the sewage for entering regeneration pond, according to every cube Rice water adds 0.01kg chlorophyll and is defined, and then by water conservancy with orifice plate jet to lactic acid bacteria web plate, the water of outflow can discharge.
Acidification pool acidification is sent into the water outlet of bioselection groove in step (2), and pH value is stablized in 6.7-6.8 in acidification pool, The OPC solution that procyanidin concentration is 0.35mg/mL is added into acidification pool simultaneously, anoxic is re-fed into after sewage disposal Biochemistry pool.
Triclosan is added with anoxic biochemistry pool.
Soybean Peptide is also added with anoxic biochemistry pool, addition adds 0.1kg Soybean Peptides according to every cubic metre of sewage and is defined.
Being added in aerobic biochemical pool has calcium sulfate or barium sulfate.
The water of outflow is then exhausted from after sedimentation basin in step (9), is added with konjaku powder in sedimentation basin, konjaku powder adds Dosage is 2 times of calcium sulfate or barium sulfate addition.
Embodiment 2
A kind of domestic sewage treatment process, comprises the following steps:
(1) sanitary sewage enters oil interceptor after first passing around mechanical grille coarse filtration;
(2) oil interceptor water outlet is pumped into oxygen-enriched pond, and it is 24.5% to maintain oxygen-enriched pond oxygen concentration, and indigo plant is planted in oxygen-enriched pond Algae, sewage are sent into acidification pool after 2-3 hours are handled in oxygen-enriched pond, and it is 6.88-6.90 to maintain its PH by acetic acid in acidification pool;
(3) sewage arrives preliminary sedimentation tank by inlet water lifting pumps lifting, and solids content few sewage in preliminary sedimentation tank top is pumped into life Thing selects groove, sets hollow fiber microfiltration membrane to be filtered in bioselection groove, and being added in bioselection groove has hydrogen peroxide, according to It is standard that 0.01kg hydrogen peroxide is added per cubic meter of water;
(4) sewage that bioselection groove comes out, which is sent into anoxic biochemistry pool, carries out anti-nitration reaction, and water outlet gravity flow enters Oxygen biochemistry pool;
(5) sewage come from anoxic biochemistry pool is aerated in aerobic biochemical pool carries out aerobic biochemical reaction, a water outlet part Anoxic biochemistry pool is back to by reflux pump as nitrification liquid, carries out anti-nitration reaction;Another part is flowed into certainly by downflow weir Enter second pond;
(6) sewage come from aerobic biochemical pool carries out mud-water separation in second pond, and sludge is in the sludge bucket of second pond Deposition concentration, storage basin being discharged into by sludge valve by fluid pressure, top clarified solution enters clear water reserviors by downflow weir gravity flow, Partial sludge in storage basin is back to hydrolysis acidification pool, is hydrolyzed, and sludge is returned after dehydration by afforesting in a manner of soil It is natural;
(7) water outlet come from second pond flows automatically to clear water reserviors, is then transported to biological activated carbon reactor, water with filter pump Enter from the bottom of biological activated carbon reactor, two biological activated carbon reactors are in parallel, and built-in activated carbon, water outlet passes through top Downflow weir flows automatically to ozone contact tank;
(8) clear water come from biological activated carbon reactor is and caused smelly in ozone generator in ozone contact tank Carrier of oxygen is sufficiently mixed contact sterilizing by sterilizing gas distributor in ozone contact tank;
(9) sewage after sterilizing is sent into regeneration pond, chlorophyll is added to the sewage for entering regeneration pond, according to every cube Rice water adds 0.01kg chlorophyll and is defined, and then by water conservancy with orifice plate jet to lactic acid bacteria web plate, the water of outflow can discharge.
Acidification pool acidification is sent into the water outlet of bioselection groove in step (2), and pH value is stablized in 6.7-6.8 in acidification pool, The OPC solution that procyanidin concentration is 0.8mg/mL is added into acidification pool simultaneously, anoxic life is re-fed into after sewage disposal Change pond.
Triclosan is added with anoxic biochemistry pool.
Soybean Peptide is also added with anoxic biochemistry pool, addition adds 0.1kg Soybean Peptides according to every cubic metre of sewage and is defined.
Being added in aerobic biochemical pool has calcium sulfate or barium sulfate.
The water of outflow is then exhausted from after sedimentation basin in step (9), and konjaku powder, konjaku essence are added with the sedimentation basin Powder addition is 2 times of calcium sulfate or barium sulfate addition.
Experiment one
Some community life sewage is divided into three parts of equivalent, utilizes embodiment 1,2 and existing sewage water treatment method To handle respectively every part of sewage.Result of the test such as following table:
Experiment proves:State quota is fully achieved in sewage after sewage treatment process processing of the present invention, wherein processing is completed Water nitrogen afterwards, phosphorus amount are very low.
Its Plays one:《Urban sewage reutilization urban reclaimed water water quality》(GB/T18920-2002) it is most stringent of in Index
Standard two:《Urban sewage reutilization water for scenic environment use water quality》(GB/T18921-2002) most stringent of water in Index in scape
Experiment two
Selection example 1,2 processing methods;In the case of other processing steps are constant by embodiment 1,2 processing methods The step of chlorophyll is added in step (9), is handled using lactic acid bacteria is tested after removing, and selects the life of certain deluxe hotel Sewage, and sewage is divided into 4 parts of equivalent, result of the test such as following table.
As seen from the above table, chlorophyll is added, using causing to remove bacterium and right completely in sewage disposal after lactic acid bacteria The reduction that suspended particulate has highly significant acts on.
Experiment three
Following four test groups are selected to be tested, embodiment 1, embodiment 2, other techniques of embodiment 1 are constant but do not add Add konjaku powder, other techniques of embodiment 2 constant but do not add konjaku powder, it is large-scale to some with aforementioned four test group respectively The sanitary sewage of community is tested, as a result such as following table:
As seen from the above table, can be so that the content of heavy metal ions in sewage be largely reduced due to the addition of konjaku powder. Precipitation is washed out because konjaku powder can form aqua complex with heavy metal.
The general principle and principal character and advantages of the present invention of the present invention has been shown and described above.The technology of the industry Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and the simply explanation described in above-described embodiment and specification is originally The principle of invention, without departing from the spirit and scope of the present invention, various changes and modifications of the present invention are possible, these changes Change and improvement all fall within the protetion scope of the claimed invention.The claimed scope of the invention by appended claims and its Equivalent thereof.

Claims (6)

1. a kind of domestic sewage treatment process, it is characterised in that comprise the following steps:
(1) sanitary sewage enters oil interceptor after first passing around mechanical grille coarse filtration;
(2) oil interceptor water outlet is pumped into oxygen-enriched pond, and it is 24.5% to maintain oxygen-enriched pond oxygen concentration, and plants blue-green algae in oxygen-enriched pond, Sewage is sent into acidification pool after 2-3 hours are handled in oxygen-enriched pond, and it is 6.88-6.90 to maintain its PH by acetic acid in acidification pool;
(3) sewage arrives preliminary sedimentation tank by inlet water lifting pumps lifting, and solids content few sewage in preliminary sedimentation tank top is pumped into biological choosing Select groove, set hollow fiber microfiltration membrane to be filtered in bioselection groove, being added in bioselection groove has hydrogen peroxide, according to often standing It is standard that Fang meter Shui, which adds 0.01kg hydrogen peroxide,;
(4) sewage that bioselection groove comes out, which is sent into anoxic biochemistry pool, carries out anti-nitration reaction, and water outlet gravity flow enters aerobic life Change pond;
(5) sewage come from anoxic biochemistry pool is aerated in aerobic biochemical pool carries out aerobic biochemical reaction, a part of conduct of water outlet Nitrification liquid is back to anoxic biochemistry pool by reflux pump, carries out anti-nitration reaction;Another part enters two by downflow weir gravity flow Heavy pond;
(6) sewage come from aerobic biochemical pool carries out mud-water separation in second pond, and sludge deposits in the sludge bucket of second pond Concentration, storage basin is discharged into by sludge valve by fluid pressure, top clarified solution enters clear water reserviors by downflow weir gravity flow, stores up mud Partial sludge in pond is back to hydrolysis acidification pool, is hydrolyzed, and sludge is returned certainly after dehydration by afforesting in a manner of soil So;
(7) water outlet come from second pond flows automatically to clear water reserviors, is then transported to biological activated carbon reactor with filter pump, and water is from life The bottom of thing activated carbon reactor enters, and two biological activated carbon reactors are in parallel, and built-in activated carbon, water outlet passes through top overflow Weir flows automatically to ozone contact tank;
(8) from the next clear water of biological activated carbon reactor in ozone contact tank, with the caused ozone gas in ozone generator Body is sufficiently mixed contact sterilizing by sterilizing gas distributor in ozone contact tank;
(9) sewage after sterilizing is sent into regeneration pond, chlorophyll is added to the sewage for entering regeneration pond, according to every cubic meter of water Add 0.01kg chlorophyll to be defined, then by water conservancy with orifice plate jet to lactic acid bacteria web plate, the water of outflow can discharge.
2. domestic sewage treatment process according to claim 1, it is characterised in that bioselection groove in the step (2) Acidification pool acidification is sent into water outlet, and pH value is stable in 6.7-6.8 in acidification pool, while addition OPC is dense into acidification pool The OPC solution for 0.25~1mg/mL is spent, anoxic biochemistry pool is re-fed into after sewage disposal.
3. domestic sewage treatment process according to claim 1, it is characterised in that three are added with the anoxic biochemistry pool Chlorine is given birth to.
4. domestic sewage treatment process according to claim 3, it is characterised in that be also added with the anoxic biochemistry pool Soybean Peptide, addition add 0.1kg Soybean Peptides according to every cubic metre of sewage and are defined.
5. domestic sewage treatment process according to claim 1, it is characterised in that being added in the aerobic biochemical pool has sulphur Sour calcium or barium sulfate.
6. according to the domestic sewage treatment process described in any one of claim 1 to 5, it is characterised in that flowed in the step (9) The water gone out is then exhausted from after sedimentation basin, is added with konjaku powder in the sedimentation basin, konjaku powder addition be calcium sulfate or 2 times of barium sulfate addition.
CN201710610593.7A 2017-07-25 2017-07-25 domestic sewage treatment process Pending CN107365017A (en)

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Application Number Priority Date Filing Date Title
CN201710610593.7A CN107365017A (en) 2017-07-25 2017-07-25 domestic sewage treatment process

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Application Number Priority Date Filing Date Title
CN201710610593.7A CN107365017A (en) 2017-07-25 2017-07-25 domestic sewage treatment process

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CN107365017A true CN107365017A (en) 2017-11-21

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Cited By (2)

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Publication number Priority date Publication date Assignee Title
CN107935157A (en) * 2017-11-30 2018-04-20 兰秋波 A kind of processing method of organic wastewater
CN109912046A (en) * 2019-03-30 2019-06-21 杨晓飞 A kind of water and treat agricultural waste agent and preparation method thereof

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107935157A (en) * 2017-11-30 2018-04-20 兰秋波 A kind of processing method of organic wastewater
CN109912046A (en) * 2019-03-30 2019-06-21 杨晓飞 A kind of water and treat agricultural waste agent and preparation method thereof

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Application publication date: 20171121