CN203728688U - Small-size sewage treatment equipment - Google Patents

Small-size sewage treatment equipment Download PDF

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Publication number
CN203728688U
CN203728688U CN201420110630.XU CN201420110630U CN203728688U CN 203728688 U CN203728688 U CN 203728688U CN 201420110630 U CN201420110630 U CN 201420110630U CN 203728688 U CN203728688 U CN 203728688U
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CN
China
Prior art keywords
pond
water
tank
baf
sedimentation tank
Prior art date
Application number
CN201420110630.XU
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Chinese (zh)
Inventor
黎青松
李继
王荣娟
吴汇民
曾宪勇
Original Assignee
娄底首创水务有限责任公司
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Application filed by 娄底首创水务有限责任公司 filed Critical 娄底首创水务有限责任公司
Priority to CN201420110630.XU priority Critical patent/CN203728688U/en
Application granted granted Critical
Publication of CN203728688U publication Critical patent/CN203728688U/en

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Abstract

The utility model discloses small-size sewage treatment equipment which comprises a grid, a lifting pump, an oil isolating unit, a primary sedimentation tank, an aeration biologic filtering tank, a reaction tank, a secondary sedimentation tank, and a sludge concentration discharge unit, wherein the grid is connected with a raw water inlet tube; a water outlet end of the grid is connected with the lifting pump; a water outlet end of the lifting pump is connected with the oil isolating unit; the effluent of the oil isolating unit is connected with the primary sedimentation tank; a water outlet end of the primary sedimentation tank is connected with the aeration biologic filtering tank; the oxygenic aeration inside the aeration biologic filtering tank and the backwash aeration share one same set of gas distribution tube and are used in match with biologic packing which the aeration biologic filtering tank is filled with; the porosity of the biologic packing is 70-80%; a water outlet end of the aeration biologic filtering tank is connected with the reaction tank; the reaction tank is arranged on the top of the secondary sedimentation tank; a water outlet end of the reaction tank is connected with the secondary sedimentation tank; the primary sedimentation tank and the secondary sedimentation tank are respectively connected with the sludge concentration discharge unit; the secondary sedimentation tank is connected with a water outlet tube. The small-size sewage treatment equipment disclosed by the utility model has the characteristics of small occupied area, low cost and relatively small water consumption.

Description

A kind of small sewage treatment equipment
Technical field
The utility model relates to technical field of sewage, is specifically related to a kind of small sewage treatment equipment.
Background technology
Existing Small Sewage Treatment Equipment, although structurally multiple technique is merged, is combined in same set of equipment,, because each technique remains the combination of traditional method, thereby there is the shortcomings such as structure is compact not, auxiliary facility is many; And mostly adopt traditional aeration method, and power consumption is large, and coefficient of oxygen utilization is low; The load and traditional aeration mode is also difficult to withstand shocks, the adaptability that device is changed sewage quality, the water yield is poor, so by optimum combination treatment process, it is necessary that the methods such as minimizing auxiliary facility and exploitation new technology reach the object reducing costs.
At present, be widely used in the BAF (BAF) in all kinds of sewage disposal devices, have that organic loading is high, floor space is little, less investment (saving 30%), can not produce the advantages such as sludge bulking, oxygen transfer efficiency is high, effluent quality is good, and integrate bio-oxidation and hold back suspended solids, thering is SS, the COD of removal cr, BOD 5with functions such as ammonia nitrogens.In general BAF, be provided with independent a set of aeration tube, to keep normal operation, separately establish a set of back flushing aeration tube, to meet the requirement of back flushing gas distribution simultaneously.But its back flushing water yield, head loss are all larger.In practical application, also there are oxygenic aeration and back flushing aeration to share the form of same set of gas distribution pipe, object is in order to reduce investment, but find because oxygenic aeration is different with the aeration rate of back flushing aeration when operation, and the porosity of common biologic packing material is generally 50%~60%, easily result in blockage, not thorough while often causing carrying out back flushing, thus the filter tank cycle of operation shortened.
General BAF must arrange separately nitrated filter tank (N pond) and denitrification filter pool (DN pond), and common back-flushing structure is generally that multiple reaction tanks run parallel, and the water outlet in other pond is as backwash water, and water consumption is large; If do not adopt multiple reaction tanks to run parallel, recoil wash pool need be set, expand floor space and cost of investment.
Utility model content
In order to solve the problems of the prior art, the utility model provides the small sewage treatment equipment that a kind of cost is low and back flushing is thorough, floor space is little, water loss is less.
The technical scheme that the utility model is dealt with problems is: a kind of small sewage treatment equipment, comprise grid, lift pump, preliminary sedimentation tank, BAF, reaction tank, second pond, the concentrated exhaust unit of mud, wherein, grid is connected with former water water inlet pipe, the water side of grid connects lift pump, and the water side of lift pump connects preliminary sedimentation tank;
The water side of preliminary sedimentation tank enters BAF by the mode of multipoint water feeding, and described BAF adopts anoxic pond and the series connection of Aerobic Pond intersection baffling to arrange, and carries out nitrification and denitrification to realize in a BAF simultaneously.The aeration tube of BAF is located at bottom, pond, and is connected with gas blower.Oxygenic aeration and the shared same set of gas distribution pipe of back flushing aeration in BAF, and large biologic packing material is used in conjunction with being filled in porosity in BAF.Meanwhile, BAF bottom one side is provided with blow-down pipe, and the water side of BAF is connected with reaction tank;
Reaction tank is arranged on the top of second pond, and its water side is connected with second pond.Described preliminary sedimentation tank, second pond are connected with the concentrated exhaust unit of mud respectively, and second pond is connected with rising pipe.
In technique scheme, in BAF, biologic packing material porosity is large compared with common fillers, can reach 70%~80%, and packing specific area is large, difficult obstruction, when oxygenic aeration, head loss is little, be used in conjunction with while carrying out back flushing with aeration tube, rinse rapidly and thoroughly.
For reducing floor space, easier spoil disposal, described preliminary sedimentation tank and second pond are all preferably vertical sedimentation basin, and settling tank bottom is provided with storage mud space.
For dosing coagulant more easily and make medicament be spread in rapidly water body and fully mix, described reaction tank is connected with coagulant dosage mechanism and stirring mechanism.Described stirring mechanism is preferably mechanical stirring mechanism or pneumatic blending mechanism.
In technique scheme, a kind of preferred technical scheme is: between preliminary sedimentation tank and lift pump, preliminary sedimentation tank top establishes oil removal unit, oil removal unit is connected with stirring mechanism and flocculant concentration mechanism, precipitate in advance partial organic substances to add flocculation agent, remove suspension oil and the larger suspended substance of particle in sewage, reduce the burden of vertical sedimentation basin.
For making waste water after treatment can enter safely water body or Recycling, a kind of preferred technical scheme is: between second pond and rising pipe, be connected with sterilizing unit, the preferred apparatus for ultraviolet disinfection of sterilizing unit.
Working process of the present utility model is:
1. municipal wastewater (former water), through fine fack, is removed scum silica frost in water, is then promoted to oil removal unit;
By flocculant concentration mechanism to adding a small amount of flocculation agent in oil removal unit and stirring, when removing in sewage suspension oil, the larger suspended substance of particle in the water that flocculates in advance, to reduce the burden of vertical sedimentation basin;
3. the water outlet of oil removal unit enters preliminary sedimentation tank, removes solidity organism, colloidal organic matter in water;
4. the water outlet of preliminary sedimentation tank enters BAF by the mode of multipoint water feeding, completes organic matter degradation, nitrated and synchronous denitrification in BAF, removes more thoroughly organism, ammonia nitrogen and total nitrogen and holds back part SS; In the time that operation some cycles needs back flushing, close water intaking valve, outlet valve, when strengthening gas blower aeration, open blow-off valve draining in filter tank, once can complete cleaning;
5. effluent of aeration biological filter enters reaction tank, adds coagulated agent by coagulant dosage mechanism in reaction tank, and adopts machinery or pneumatic blending, makes medicament be spread in rapidly water body abundant hybrid reaction, forms flco material;
6. the second pond that reaction tank water outlet enters bottom carries out sedimentation, removes the flco material producing;
7. second pond water outlet discharge after sterilization;
8. the filter-press dehydration device that preliminary sedimentation tank and second pond bottom mud concentrate exhaust unit by mud carries out after filter-press dehydration, transports outward with together with grid slag etc.
Sewage disposal device of the present utility model, has advantages of that floor space is little, cost is low, water loss is less:
1. the technical sophistication degree of BAF that the utility model adopts significantly reduces: oxygenic aeration and back flushing aeration share same set of gas distribution pipe, and reaches 70%~80% biologic packing material with porosity and be used in conjunction with.Difficult obstruction, when oxygenic aeration, head loss is less than 0.2m; In the time carrying out back flushing, draining when only needing to strengthen aeration, air purge 5 minutes, draining can complete cleaning in 10 minutes, and water consumption is few, and backwashing period is about 30 days.This BAF is without multiple BAF parallel connections, and non-recoil wash cloth water pipe and flushing pump, without other back flushing gas distribution pipe, do not need automatic control system, saved cost.
2. adopt the form setting of anoxic pond and the series connection of Aerobic Pond intersection baffling due to BAF, the organism that can make full use of in water is realized denitrification, and the denitrifying while has also been removed partial organic substances, has reduced the organic loading of aerobic zone.Rationally intersect series design anoxic pond and Aerobic Pond according to regional sewage quality feature, without the internal reflux facility that mixed solution is set, have efficient nitric efficiency, clearance exceedes 60%.
3. whole processing units of this sewage disposal device, except ground and Equipment Foundations, without civil engineering, equipment is installed fast, and the construction period is short.Compared with conventional equipment, floor space is saved more than 60%; Running cost is low, approximately 0.4 yuan of ton cost of water treatment.
Brief description of the drawings
Fig. 1 is the structural representation of the utility model small sewage treatment equipment.
Fig. 2 is the structural representation of the BAF of the utility model small sewage treatment equipment.
Wherein, 1-grid, 2-lift pump, 3-preliminary sedimentation tank, 4-BAF, 5-reaction tank, 6-second pond, 7-mud concentrates exhaust unit, 8-oil removal unit, 9-gas blower, 10-apparatus for ultraviolet disinfection, 11-blow-down pipe, 41-A anoxic pond, 42-A Aerobic Pond, 43-B anoxic pond, 44-B Aerobic Pond, 45-C anoxic pond, 46-C Aerobic Pond.
Embodiment
As shown in Figure 1, a kind of small sewage treatment equipment, comprises grid 1, lift pump 2, preliminary sedimentation tank 3, BAF 4, reaction tank 5, second pond 6, the concentrated exhaust unit 7 of mud, oil removal unit 8.
Wherein, described grid 1 is 5mm fine fack, and grid 1 is connected with former water water inlet pipe; The water side of grid 1 connects lift pump 2, and the water side of lift pump 2 connects oil removal unit 8;
Described oil removal unit 8 is located at preliminary sedimentation tank 3 tops, oil removal unit 8 is connected with stirring mechanism and flocculant concentration mechanism, precipitate in advance partial organic substances to add flocculation agent, remove suspension oil and the larger suspended substance of particle in sewage, reduce the burden of vertical sedimentation basin.8 water sides, oil removal unit connect preliminary sedimentation tank 3, and the water side of preliminary sedimentation tank 3 connects BAF 4;
Described BAF adopts the form setting of anoxic pond and the series connection of Aerobic Pond intersection baffling, and as shown in Figure 2, BAF 4 inside arrange A anoxic pond 41, B anoxic pond 43, C anoxic pond 45 and A Aerobic Pond 42, B Aerobic Pond 44, C Aerobic Pond 46.The water outlet of preliminary sedimentation tank 3 enters A anoxic pond 41, B anoxic pond 43, the C anoxic pond 45 of BAF 4 by the mode of multipoint water feeding, 41 water outlets of A anoxic pond flow into A Aerobic Pond 42,42 water outlets of A Aerobic Pond then flow to B anoxic pond 43, so hocket, realized and in a BAF, carried out nitrification and denitrification simultaneously.The aeration tube of BAF is located at bottom, pond, and is connected with gas blower.In BAF, oxygenic aeration and back flushing aeration share same set of gas distribution pipe, and be filled in that specific surface area in BAF is large, porosity reaches 70%~80% biologic packing material and is used in conjunction with, difficult obstruction, when oxygenic aeration, head loss is little, be used in conjunction with while carrying out back flushing with aeration tube, rinse rapidly and thoroughly.BAF bottom one side is provided with blow-down pipe 11, and the water side of BAF 4 is connected with reaction tank 5;
Reaction tank 5 is arranged on the top of second pond 6, and is connected with coagulant dosage mechanism and mechanical stirring mechanism, so that medicament is spread in rapidly water body and fully mixes, the water side of reaction tank 5 is connected with second pond 6;
Second pond 6 is connected with apparatus for ultraviolet disinfection 10, and to make waste water after treatment can enter safely water body or Recycling, described apparatus for ultraviolet disinfection 10 is connected with rising pipe;
Described preliminary sedimentation tank 3, second pond 6 are connected with the concentrated exhaust unit 7 of mud respectively.
In technique scheme, for reducing floor space, easier spoil disposal, described preliminary sedimentation tank 3 and second pond 6 are vertical sedimentation basin, and settling tank bottom is provided with storage mud space, and preliminary sedimentation tank can hold the sludge quantity of 1-2 days, and second pond can hold the sludge quantity of 4 hours.
The working process of the present embodiment is:
1. municipal wastewater (former water), through fine fack, is removed scum silica frost in water, is then promoted to oil removal unit 8;
2. add a small amount of flocculation agent and stir in oil removal unit 8 by flocculant concentration mechanism, to precipitate in advance partial organic substances, removing the larger suspension oil of particle in sewage, reducing the burden of vertical sedimentation basin;
3. 8 water outlets of oil removal unit enter preliminary sedimentation tank 3,1 hour residence time, under flocculation and precipitating action, remove the phosphorus of solidity organism, colloidal organic matter and solidity in water;
4. the water outlet of preliminary sedimentation tank 3 enters the anoxic pond of BAF 4 by the mode of multipoint water feeding, in BAF 4, complete organic matter degradation, nitrated and synchronous denitrification, remove more thoroughly organism, ammonia nitrogen and total nitrogen and hold back part SS, residence time 2.0-2.5 hour;
5. BAF 4 water outlets enter reaction tank 5.In reaction tank 5, add PAC(polymerize aluminum chloride by coagulant dosage mechanism) and PAM(polyacrylamide), and adopt mechanical stirring, and make medicament be spread in rapidly water body abundant hybrid reaction, form flco material;
6. reaction tank 5 water outlets enter the second pond 6 of bottom, 1 hour residence time, remove SS and the dissolved phosphorus in sewage by precipitation, and make water outlet reach emission standard;
7. second pond 6 water outlets are discharged after apparatus for ultraviolet disinfection 10;
8. the filter-press dehydration device that preliminary sedimentation tank 3 and second pond 6 bottom mud concentrate exhaust unit 7 by mud carries out after filter-press dehydration, with outward transport together with grid slag etc.;
9. in the time that operation some cycles needs back flushing, close water intaking valve, outlet valve, when strengthening gas blower aeration, open blow-off valve draining in filter tank, air purge 5 minutes, draining can complete cleaning in 10 minutes.
Sewage disposal device of the present utility model, has advantages of that floor space is little, cost is low, water loss is less.
The above is preferred embodiment of the present utility model; not in order to limit the utility model; all in thinking of the present utility model with limit any amendment of making within the scope of principle, be equal to replacement, improvement etc., within all should being included in protection domain of the present utility model.

Claims (9)

1. a small sewage treatment equipment, comprise grid (1), lift pump (2), preliminary sedimentation tank (3), BAF (4), second pond (6), mud concentrates exhaust unit (7), wherein, grid (1) is connected with former water water inlet pipe, the water side of grid (1) connects lift pump (2), the water side of lift pump connects preliminary sedimentation tank (3), the water side of preliminary sedimentation tank connects BAF (4), BAF bottom one side is connected with blow-down pipe (11), effluent of aeration biological filter end connects second pond (6), described preliminary sedimentation tank (3), second pond (6) is connected with the concentrated exhaust unit (7) of mud respectively, and second pond is connected with rising pipe, it is characterized in that: the aeration tube of described BAF (4) is located at bottom, pond and is connected with gas blower (9), in BAF, oxygenic aeration and back flushing aeration share same set of gas distribution pipe, and be filled in porosity in BAF and reach 70%~80% biologic packing material and be used in conjunction with.
2. sewage disposal device according to claim 1, is characterized in that: described BAF (4) adopts anoxic pond and the series connection of Aerobic Pond intersection baffling to arrange, and it is multipoint water feeding that sewage enters pond mode.
3. sewage disposal device according to claim 1, is characterized in that: the top of second pond (6) is provided with reaction tank (5), and the water side of BAF (4) is connected with reaction tank (5), and the water side of reaction tank connects second pond.
4. sewage disposal device according to claim 3, is characterized in that: described reaction tank (5) is connected with stirring mechanism and coagulant dosage mechanism.
5. sewage disposal device according to claim 1, is characterized in that: described preliminary sedimentation tank (3) is vertical sedimentation basin.
6. sewage disposal device according to claim 1, is characterized in that: described second pond (6) is vertical sedimentation basin.
7. sewage disposal device according to claim 1, is characterized in that: between preliminary sedimentation tank and lift pump, preliminary sedimentation tank top is provided with oil removal unit.
8. sewage disposal device according to claim 7, is characterized in that: described oil removal unit (8) is connected with stirring mechanism and flocculant concentration mechanism.
9. sewage disposal device according to claim 1, is characterized in that: between second pond (6) and rising pipe, be connected with sterilizing unit (10).
CN201420110630.XU 2014-03-12 2014-03-12 Small-size sewage treatment equipment CN203728688U (en)

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Application Number Priority Date Filing Date Title
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Publications (1)

Publication Number Publication Date
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Cited By (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104529071A (en) * 2014-12-24 2015-04-22 北京桑德环境工程有限公司 System and method for treating village sewage
CN105481197A (en) * 2016-01-22 2016-04-13 陈璟 Small sewage treatment device
CN105481198A (en) * 2016-01-22 2016-04-13 陈璟 Comprehensive sewage treatment device
CN105481194A (en) * 2016-01-22 2016-04-13 陈璟 Small sewage treatment equipment provided with oil-separation grit chamber
CN105481193A (en) * 2016-01-22 2016-04-13 陈璟 Small sewage treatment equipment provided with oil separation unit
CN105481196A (en) * 2016-01-22 2016-04-13 陈璟 Sewage treatment equipment provided with biological aerated filter
CN105481199A (en) * 2016-01-22 2016-04-13 陈璟 Sewage treatment device
CN105481195A (en) * 2016-01-22 2016-04-13 陈璟 Sewage treatment equipment with internally mounted anoxic tank and aerobic tank
CN105502849A (en) * 2016-01-22 2016-04-20 陈璟 Low energy consumption sewage treatment device
CN105502845A (en) * 2016-01-22 2016-04-20 陈璟 Miniature sewage treatment equipment with backwashing mechanism
CN105502847A (en) * 2016-01-22 2016-04-20 陈璟 Sewage treatment device with simple structure
CN105502848A (en) * 2016-01-22 2016-04-20 陈璟 Low cost sewage treatment device
CN105502846A (en) * 2016-01-22 2016-04-20 陈璟 Miniature sewage treatment equipment
CN105541038A (en) * 2016-01-22 2016-05-04 陈璟 Sewage treatment equipment with infrared sterilization device
CN105585219A (en) * 2016-01-22 2016-05-18 陈璟 Sewage treatment equipment provided with coagulant adding mechanism
CN105621804A (en) * 2016-01-22 2016-06-01 陈璟 Sewage purifying device
CN105668925A (en) * 2016-01-22 2016-06-15 陈璟 Sewage treatment device small in floor space
CN105668924A (en) * 2016-01-22 2016-06-15 陈璟 Sewage treatment equipment with vertical-flow sedimentation tank
CN105693013A (en) * 2016-01-22 2016-06-22 陈璟 Miniaturized sewage treatment device
CN105693012A (en) * 2016-01-22 2016-06-22 陈璟 Integral sewage treatment equipment
CN105712573A (en) * 2016-01-22 2016-06-29 陈璟 Wastewater treatment device low in water consumption
CN107417040A (en) * 2017-06-21 2017-12-01 安徽普氏生态环境工程有限公司 A kind of sewage disposal system and its sewage water treatment method

Cited By (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104529071A (en) * 2014-12-24 2015-04-22 北京桑德环境工程有限公司 System and method for treating village sewage
CN105502848A (en) * 2016-01-22 2016-04-20 陈璟 Low cost sewage treatment device
CN105481198A (en) * 2016-01-22 2016-04-13 陈璟 Comprehensive sewage treatment device
CN105481194A (en) * 2016-01-22 2016-04-13 陈璟 Small sewage treatment equipment provided with oil-separation grit chamber
CN105481193A (en) * 2016-01-22 2016-04-13 陈璟 Small sewage treatment equipment provided with oil separation unit
CN105481196A (en) * 2016-01-22 2016-04-13 陈璟 Sewage treatment equipment provided with biological aerated filter
CN105481199A (en) * 2016-01-22 2016-04-13 陈璟 Sewage treatment device
CN105481195A (en) * 2016-01-22 2016-04-13 陈璟 Sewage treatment equipment with internally mounted anoxic tank and aerobic tank
CN105502849A (en) * 2016-01-22 2016-04-20 陈璟 Low energy consumption sewage treatment device
CN105502845A (en) * 2016-01-22 2016-04-20 陈璟 Miniature sewage treatment equipment with backwashing mechanism
CN105502847A (en) * 2016-01-22 2016-04-20 陈璟 Sewage treatment device with simple structure
CN105481197A (en) * 2016-01-22 2016-04-13 陈璟 Small sewage treatment device
CN105502846A (en) * 2016-01-22 2016-04-20 陈璟 Miniature sewage treatment equipment
CN105541038A (en) * 2016-01-22 2016-05-04 陈璟 Sewage treatment equipment with infrared sterilization device
CN105585219A (en) * 2016-01-22 2016-05-18 陈璟 Sewage treatment equipment provided with coagulant adding mechanism
CN105621804A (en) * 2016-01-22 2016-06-01 陈璟 Sewage purifying device
CN105668925A (en) * 2016-01-22 2016-06-15 陈璟 Sewage treatment device small in floor space
CN105668924A (en) * 2016-01-22 2016-06-15 陈璟 Sewage treatment equipment with vertical-flow sedimentation tank
CN105693013A (en) * 2016-01-22 2016-06-22 陈璟 Miniaturized sewage treatment device
CN105693012A (en) * 2016-01-22 2016-06-22 陈璟 Integral sewage treatment equipment
CN105712573A (en) * 2016-01-22 2016-06-29 陈璟 Wastewater treatment device low in water consumption
CN107417040A (en) * 2017-06-21 2017-12-01 安徽普氏生态环境工程有限公司 A kind of sewage disposal system and its sewage water treatment method

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C41 Transfer of patent application or patent right or utility model
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Effective date of registration: 20160415

Address after: 410007 Hunan province Changsha City Furong Road No. 368 Building No. 25008

Patentee after: Limited investment leading company is initiated in Hunan

Address before: 417000 Loudi City, Hunan province Louxing district offices of the village of Huashan

Patentee before: LOUDI CAPITAL WATER CO., LTD.