CN109264934A - It is a kind of for handling the integrated high-efficiency sewage treatment device of city domestic sewage - Google Patents

It is a kind of for handling the integrated high-efficiency sewage treatment device of city domestic sewage Download PDF

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Publication number
CN109264934A
CN109264934A CN201811386669.3A CN201811386669A CN109264934A CN 109264934 A CN109264934 A CN 109264934A CN 201811386669 A CN201811386669 A CN 201811386669A CN 109264934 A CN109264934 A CN 109264934A
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CN
China
Prior art keywords
aerated filter
biological aerated
integrated
handling
sewage treatment
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
CN201811386669.3A
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Chinese (zh)
Inventor
蔡聆聆
张开现
何庚砰
陈翠群
闫晓满
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Guangzhou Peng Kai Environmental Polytron Technologies Inc
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Guangzhou Peng Kai Environmental Polytron Technologies Inc
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.)
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Application filed by Guangzhou Peng Kai Environmental Polytron Technologies Inc filed Critical Guangzhou Peng Kai Environmental Polytron Technologies Inc
Priority to CN201811386669.3A priority Critical patent/CN109264934A/en
Publication of CN109264934A publication Critical patent/CN109264934A/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
    • C02F1/52Treatment 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
    • C02F1/5281Installations for water purification using chemical agents
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2303/00Specific treatment goals
    • C02F2303/14Maintenance of water treatment installations
    • 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

Abstract

The invention belongs to technical field of sewage treatment equipment, and in particular to a kind of for handling the integrated high-efficiency sewage treatment device of city domestic sewage.Efficient sewage treatment installation provided by the invention mainly includes sequentially connected grid, conditioning tank, elevator pump, preposition high-density packing anoxic pond, pipe-line mixer, sedimentation basin, BAF biological aerated filter and filtered water tank.Integrated high-efficiency sewage treatment device provided by the invention is able to solve biological aerated filter to the water inlet demanding problem of concentration of suspension, can be reduced backwash frequency, energy saving;Effluent quality is substantially increased, water outlet is made to reach level-one A standard.

Description

It is a kind of for handling the integrated high-efficiency sewage treatment device of city domestic sewage
Technical field
The invention belongs to technical field of sewage treatment equipment, and in particular to a kind of for handling the one of city domestic sewage Change efficient sewage treatment installation.
Background technique
In recent years, the rate of economic development in China city is relatively fast, the sewage for producing and living in city and generate Quantity is also gradually increasing, and China's treatment rate of domestic sewage is not high compared with developed countries, and technique there are also to be improved, also compare by management Relatively fall behind, average every 1,500,000 people or so just possesses a sewage treatment plant, and builds there is also sewage disposal device and effectively throw The problems such as money utilization rate and processing compliance rate are low.As Process of Urbanization Construction is quickened one's step, city old town sewage network is The drawbacks of through being not suitable for, gradually exposing unreasonable distribution, overload, the difficult and traditional AAO, SBR of comprehensive rectification, The technologies such as AO, oxidation ditch, artificial swamp, land occupation is big, treatment effeciency is low, capacity of resisting impact load is poor, very not applicable, In order to solve problems, develop that a kind of cost of investment is low, occupied area is small, capacity of resisting impact load is strong, dispersible processing The integration apparatus of sanitary sewage is too impatient to wait.
About the processing method of city domestic sewage, Chinese patent CN104556557B discloses a kind of CIT municipal sewage Processing system, the system include pretreatment unit grid pond, two stage treatment device aeration tank and the first sedimentation basin, tertiary treatment dress Set biological nitrogen processing unit, biological dephosphorization device and chlorination equipment.Although the invention simple process, easy to operate, and can remove Organic matter in municipal sewage, but the contaminants removals rate such as inorganic matter nitrogen phosphorus is lower, and processed sewage is only capable of reaching country Secondary standard.
Chinese patent CN103755108B discloses a kind of purifying treatment method of city domestic sewage, including successively carries out Pre-treatment step, biological respinse step, filtration step, sterilisation step and adsorption step.Pre-treatment step can go desanding Stone and large-sized floating material provide stable water source for subsequent processing;Biological respinse step realizes city domestic sewage Low-carbon, efficiently removal have processing load high, high treating effect, without additional organic and inorganic carbon source, oxygen demand and regurgitant volume It is low;Filtration step further eliminates tiny particles content and suspended matter in sewage;Sterilisation step is gone out in addition to included in sewage The hygienic hazards biology such as bacterium, virus;Adsorption step, can efficiently remove calcium ions and magnesium ions in sewage, fluorine ion and other Heavy metal ion.Product water after purified treatment, pollutant are substantially removed, water stabilization, and water quality is better than country-level A Standard.But this method takes up a large area, and higher cost easily causes secondary pollution.
In conclusion in the prior art for there are still treated in city domestic sewage integrated equipment for wastewater treatment The problems such as sewage denitrification and dephosphorization effect is poor, and technique takes up a large area, and system operation energy consumption is high, difficult in maintenance.
Summary of the invention
In order to solve the problems in the existing technology, the purpose of the present invention is to provide one kind for handling urban life The integrated high-efficiency sewage treatment device of sewage.It is provided by the invention have energy conservation, efficiently, effluent quality is good, occupied area is small, The features such as small investment, processing cost is low, easily operated.And efficient sewage treatment installation provided by the invention is able to solve aeration Biofilter to water inlet the demanding problem of concentration of suspension, can distributing focus on sanitary sewage, reduce backwash frequency Rate, energy saving;Effluent quality is substantially increased, water outlet is made to reach level-one A standard.
The technical scheme is that
It is a kind of for handling the integrated high-efficiency sewage treatment device of city domestic sewage, including sequentially connected adjusting Pond, preposition high-density packing anoxic pond, sedimentation basin, BAF biological aerated filter and filtered water tank;The conditioning tank be additionally provided with grid and Elevator pump, the conditioning tank end are connected by elevator pump with the bottom of anoxic pond, and the top of the anoxic pond is mixed with pipeline Device is connected, and the other side of the pipe-line mixer is connected with the bottom of sedimentation basin, and the sedimentation basin is by sludge reflux pump and adjusts Pond is saved to be connected;The top of the sedimentation basin is connected with the bottom of BAF biological aerated filter;At the top of the BAF biological aerated filter It is connected by mixed liquor mixed-flow pump with anoxic pond;Also it is connected with the filtered water tank at the top of the BAF biological aerated filter.
Further, the integrated high-efficiency sewage treatment device for handling city domestic sewage is additionally provided with blower, The blower is connected with anoxic pond and BAF biological aerated filter respectively.
Further, the BAF biological aerated filter is followed successively by boring aeration pipe, strainer head, hole membranes from the bottom up Aerator, cobblestone and haydite.
Further, which is characterized in that the anoxic bottom of pond portion secures high-density fiber filler.
Further, the pipe-line mixer is equipped with PAC chemicals dosing plant and PAM chemicals dosing plant.
Further, the BAF biological aerated filter, conditioning tank, anoxic pond sedimentation basin and filtered water tank are carbon steel structure.
Further, the Inlet and outlet water mode between the anoxic pond, sedimentation basin and biological aerated filter is bottom in and top out.
Further, the bottom of the anoxic pond, sedimentation basin and BAF biological aerated filter is respectively provided with a mud discharging mouth.
Further, the BAF biological aerated filter mud discharging mouth is connect with BAF backwashing pump, controls Inlet and outlet water by valve, Backwash water inlet enters BAF biological aerated filter region from the BAF biological aerated filter mud discharging mouth.
Further, city domestic sewage enters the operational process of integration apparatus in the present invention are as follows: sanitary sewage first leads to Grid is crossed, is retained into anoxic bottom of pond portion by highdensity fiberfill into conditioning tank, then by the effect of elevator pump With the impurity in processing water, treated, and water enters pipe-line mixer at the top of anoxic pond, is filled by PAC chemicals dosing plant, PAM dosing It sets and carries out dosing coagulation process, enter back into sedimentation basin and carry out precipitation process, suspended matter and total phosphorus in water are further removed, after processed Water then from biological aerated filter bottom enter, with strainer head water distribution, be aerated with single-hole membrane aerator, the filler used for Haydite, bottom cobblestone place mat are discharged from top finally by the sanitary sewage of biochemical treatment, are discharged into filtered water tank.BAF A part of nitrification liquid of biological aerated filter is back to anoxic pond by mixed liquor reflux pump, promotes denitrification efficiency.Sedimentation basin bottom Portion's partial sludge is flowed back into system by sludge reflux pump.
Further, it since BAF biological aerated filter need to be backwashed periodically, then still needs in BAF biological aerated filter Region is laid with boring aeration pipe, periodically carries out air-water backwashing.Backwash process frequently with: " air purge → air water simultaneously backwash → Three steps of water rinsing ".The air purge stage closes water-in and water-out valve and dissolved air water valve, opens air intake valve, it is therefore an objective to loosen filtrate Layer, expands filter material layer.The combined water and air backwash stage keeps backwash air inlet, while starting BAF backwashing pump, opens backwash Inlet valve, it is therefore an objective to rinse away the microbial film of the suspended matter retained on filtrate and aging.Clear water backwash stage is closed Air intake valve is backwashed, backwash water inlet is maintained only to carry out a water rinsing, it is therefore an objective to by the micro- of the suspended matter of filter material surface and aging Biomembrane rinses away.
In integrated high-efficiency sewage treatment device provided by the present invention for handling city domestic sewage, preposition high density Anoxic pond is all the water intake mode of bottom in and top out between sedimentation basin and biological aerated filter, and water distribution, is not easy to plug uniform air distribution, And the loss of anoxic pond, Discussion of Biological Aerated Filter Medium is effectively prevented, wastewater treatment efficiency is significant.Biological aerated filter passes through A part of nitrification liquid is back to anoxic pond by mixed liquor reflux pump, and regurgitant volume 300% supplements nitrate nitrogen for denitrifying bacteria, Denitrification efficiency can be improved, remove total nitrogen.
In integrated high-efficiency sewage treatment device provided by the present invention for handling city domestic sewage, anoxic pool area Using high-density fiber filler, has the characteristics that easy to be filmed, easy cleaning, intercepts suspended matter, fiberfill is fixed on pond The bottom of son, simulates water plant, and in backwash, gas and water enter from bottom, and fiberfill punching is floated up, aging sludge and Rubbish fast-falling is discharged from water outlet.
In integrated high-efficiency sewage treatment device provided by the present invention for handling city domestic sewage, aeration and biological filter Pool area has large specific surface area, easy bio-film colonization, the spy that intensity is high, wear-resistant and cheap using ceramics filling Point, cobblestone is layered on filter plate, then ceramics filling is layered on cobblestone, and water flow and gas rise to top, gas from bottom Water cocurrent flow, mass-transfer efficiency is high, and treatment effect is stablized.
Compared with prior art, it is set provided by the present invention for handling the integrated high-efficiency sewage treatment of city domestic sewage It is standby to have the advantage that
(1) preposition highly dense provided by the present invention for the integrated high-efficiency sewage treatment device of processing city domestic sewage Anoxic pond is spent, using fiberfill, has the characteristics that easy to be filmed, easy cleaning, intercept suspended matter;Biological aerated filter region Using ceramics filling, have the advantages that large specific surface area, easy bio-film colonization, intensity are high, wear-resistant and cheap.
(2) provided by the present invention for the integrated high-efficiency sewage treatment device of processing city domestic sewage, occupied area It is small, at low cost, easily operated, can distributing focus on sanitary sewage, reduce backwash frequency, energy saving;And energy Enough solve the problems, such as that biological aerated filter is demanding to water inlet concentration of suspension;Effluent quality is substantially increased, water outlet is reached Level-one A standard.
Detailed description of the invention
Fig. 1 is plane design drawing of the invention;
In Fig. 2, A is anoxic pond main view, and B is anoxic pond top view;
In Fig. 3, A is sedimentation basin main view, and B is sedimentation basin top view;
Fig. 4 is BAF biological aerated filter structure chart.
In figure: 1, grid;2, conditioning tank;3, elevator pump;4, anoxic pond;5, fiberfill;6, pipe-line mixer;7,PAC Chemicals dosing plant;8, PAM chemicals dosing plant;9, sedimentation basin;11, mixed liquor reflux pump;12, BAF biological aerated filter;13, perforation exposes Tracheae;14, strainer head;15, single hole aerator;16, cobblestone;17, haydite;18, BAF backwashing pump;19, filtered water tank;20, clear Water tank.
Specific embodiment
The following describes the present invention further through the description of specific embodiments, but it is to limit of the invention that this, which is not, System, those skilled in the art's basic thought according to the present invention can make various modifications or improvements, but without departing from this The basic thought of invention, it is within the scope of the present invention.
It is a kind of for handling the integrated high-efficiency sewage treatment device of city domestic sewage, including sequentially connected conditioning tank 2, preposition high-density packing anoxic pond 4, sedimentation basin 9, BAF biological aerated filter 12 and filtered water tank 19;The conditioning tank 2 is additionally provided with Grid 1 and elevator pump 3,2 end of conditioning tank are connected by elevator pump 3 with the bottom of anoxic pond 4,4 bottom of anoxic pond Fiberfill 5 is secured, the top of the anoxic pond 4 is connected with pipe-line mixer 6, and the mixing tube logos and utensils 6 is equipped with PAC Chemicals dosing plant 7 and PAM chemicals dosing plant 8.The other side of the pipe-line mixer 6 is connected with the bottom of sedimentation basin 9, the sedimentation basin 9 are connected by sludge reflux pump 10 with conditioning tank 2;The bottom phase at the top of the sedimentation basin 9 and BAF biological aerated filter 12 Even;It is connected by mixed liquor mixed-flow pump 11 with anoxic pond 4 at the top of the BAF biological aerated filter 12;The BAF aeration and biological filter 12 top of pond is also connected with the filtered water tank 19.
The integrated high-efficiency sewage treatment device for handling city domestic sewage is additionally provided with blower 20, the blower 20 are connected with anoxic pond 4 and BAF biological aerated filter 12 respectively, are 12 blast aeration of anoxic pond 4 and BAF biological aerated filter.
The BAF biological aerated filter is followed successively by boring aeration pipe 13, strainer head 14, single-hole membrane aerator from the bottom up 15, cobblestone 16 and haydite 17.
Inlet and outlet water mode between the anoxic pond 4, sedimentation basin 9 and BAF biological aerated filter 12 is bottom in and top out, and Bottom is respectively provided with a mud discharging mouth.
12 mud discharging mouth of BAF biological aerated filter is connect with BAF backwashing pump 18, controls Inlet and outlet water, backwash by valve Water inlet enters BAF biological aerated filter region from 12 mud discharging mouth of BAF biological aerated filter.
City domestic sewage enters the operational process of integration apparatus in the present embodiment are as follows: and sanitary sewage first passes through grid 1, Into conditioning tank 2, then pass through the effect of elevator pump 3, into 4 bottom of anoxic pond, is retained and located by highdensity fiberfill 5 The impurity in water is managed, treated, and water enters pipe-line mixer 6 at the top of anoxic pond 4, is filled by PAC chemicals dosing plant 7, PAM dosing 8 carry out dosing coagulation process are set, sedimentation basin 9 is entered back into and carries out precipitation process, further remove concentration of suspension and total phosphorus, located Water after reason then enters from 12 bottom of biological aerated filter, with 14 water distribution of strainer head, is aerated, is adopted with single-hole membrane aerator 15 Filler is haydite 17, and bottom 16 place mat of cobblestone is discharged from top finally by the sanitary sewage of biochemical treatment, enters Filtered water tank 19 is discharged.Nitrification liquid in biological aerated filter 12 is back to anoxic pond 4 by mixed liquor reflux pump 11, and regurgitant volume is 300%, promote denitrification efficiency.Sedimentation basin bottom part sludge is flowed back into system by sludge reflux pump 10.
Since biological aerated filter need to be backwashed periodically, then still needs to be laid in BAF biological aerated filter region 12 and wear Hole aeration tube 13 periodically carries out air-water backwashing.Backwash process is frequently with " backwash → water simultaneously of air purge → air water rinses " three Step.The air purge stage closes water-in and water-out valve and dissolved air water valve, opens air intake valve, it is therefore an objective to loosen filter material layer, make filtrate Layer expansion.The combined water and air backwash stage keeps backwash air inlet, while starting BAF backwashing pump 18, opens backwash inlet valve, Purpose is that the microbial film for the suspended matter and aging that will be retained on filtrate rinses away.Clear water backwash stage closes backwash Air intake valve maintains backwash water inlet only to carry out water rinsing, it is therefore an objective to by the microbial film of the suspended matter of filter material surface and aging Flushing is gone out.
The above-described embodiments merely illustrate the principles and effects of the present invention, and is not intended to limit the present invention.It is any ripe The personage for knowing this technology all without departing from the spirit and scope of the present invention, carries out modifications and changes to above-described embodiment.Cause This, institute is complete without departing from the spirit and technical ideas disclosed in the present invention by those of ordinary skill in the art such as At all equivalent modifications or change, should be covered by the claims of the present invention.

Claims (8)

1. a kind of for handling the integrated high-efficiency sewage treatment device of city domestic sewage, which is characterized in that including successively connecting Conditioning tank, preposition high-density packing anoxic pond, sedimentation basin, BAF biological aerated filter and the filtered water tank connect;
The conditioning tank is additionally provided with grid and elevator pump, and the conditioning tank end is connected by elevator pump with the bottom of anoxic pond, The top of the anoxic pond is connected with pipe-line mixer, and the other side of the pipe-line mixer is connected with the bottom of sedimentation basin, institute Sedimentation basin is stated to be connected by sludge reflux pump with conditioning tank;The bottom phase at the top of the sedimentation basin and BAF biological aerated filter Even;It is connected by mixed liquor mixed-flow pump with anoxic pond at the top of the BAF biological aerated filter;BAF biological aerated filter top Portion is also connected with the filtered water tank;
The integrated high-efficiency sewage treatment device for handling city domestic sewage is additionally provided with blower, the blower respectively with Anoxic pond is connected with BAF biological aerated filter.
2. as described in claim 1 for handling the integrated high-efficiency sewage treatment device of city domestic sewage, feature exists In, the BAF biological aerated filter be followed successively by from the bottom up boring aeration pipe, strainer head, single-hole membrane aerator, cobblestone and Haydite.
3. as described in claim 1 for handling the integrated high-efficiency sewage treatment device of city domestic sewage, feature exists In the anoxic bottom of pond portion secures high-density fiber filler.
4. as described in claim 1 for handling the integrated high-efficiency sewage treatment device of city domestic sewage, feature exists In the pipe-line mixer is equipped with PAC chemicals dosing plant and PAM chemicals dosing plant.
5. as described in claim 1 for handling the integrated high-efficiency sewage treatment device of city domestic sewage, feature exists In the BAF biological aerated filter, conditioning tank, anoxic pond sedimentation basin and filtered water tank are carbon steel structure.
6. as described in claim 1 for handling the integrated high-efficiency sewage treatment device of city domestic sewage, feature exists In the Inlet and outlet water mode between the anoxic pond, sedimentation basin and biological aerated filter is bottom in and top out.
7. as described in claim 1 for handling the integrated high-efficiency sewage treatment device of city domestic sewage, feature exists In the bottom of the anoxic pond, sedimentation basin and BAF biological aerated filter is respectively provided with a mud discharging mouth.
8. as claimed in claim 7 for handling the integrated high-efficiency sewage treatment device of city domestic sewage, feature exists In the BAF biological aerated filter mud discharging mouth is connect with BAF backwashing pump, controls Inlet and outlet water by valve, backwash is intake from described BAF biological aerated filter mud discharging mouth enters BAF biological aerated filter region.
CN201811386669.3A 2018-11-20 2018-11-20 It is a kind of for handling the integrated high-efficiency sewage treatment device of city domestic sewage Pending CN109264934A (en)

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CN201811386669.3A CN109264934A (en) 2018-11-20 2018-11-20 It is a kind of for handling the integrated high-efficiency sewage treatment device of city domestic sewage

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Application Number Priority Date Filing Date Title
CN201811386669.3A CN109264934A (en) 2018-11-20 2018-11-20 It is a kind of for handling the integrated high-efficiency sewage treatment device of city domestic sewage

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110526509A (en) * 2019-09-09 2019-12-03 北京华科仪科技股份有限公司 A kind of intelligent and high-efficiency sewage disposal system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110526509A (en) * 2019-09-09 2019-12-03 北京华科仪科技股份有限公司 A kind of intelligent and high-efficiency sewage disposal system

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