CN104211179A - Household domestic sewage drop aeration biological enhanced treatment device - Google Patents
Household domestic sewage drop aeration biological enhanced treatment device Download PDFInfo
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- CN104211179A CN104211179A CN201410519071.2A CN201410519071A CN104211179A CN 104211179 A CN104211179 A CN 104211179A CN 201410519071 A CN201410519071 A CN 201410519071A CN 104211179 A CN104211179 A CN 104211179A
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Abstract
The invention relates to the technical field of environmental protection, in particular to a domestic sewage treatment device. The household domestic sewage drop aeration biological enhanced treatment device comprises a water inlet valve, a high-level adjusting tank, a drop chute, a water collecting sump, an aerobic reaction tank and a water outlet, wherein the water inlet valve is connected with a drain outlet of a septic tank, the high-level adjusting tank is connected with the water inlet valve, the drop chute is connected with the high-level adjusting tank, the aerobic reaction tank is positioned below the drop chute, the aerobic reaction tank is positioned below the water collecting sump, and the water outlet is connected with the aerobic reaction tank. By the aid of the height of water, a domestic sewage drop aeration oxygenation process and a mixing function are naturally achieved, a continuous anaerobic-aerobic reaction system is formed by the aid of layered suspended carrier fixing for active sludge anaerobic and aerobic flora, and various pollutants in domestic sewage are synchronously removed. The device with simple process equipment is small in size, non-powered, simple and convenient to maintain, low in construction and treatment cost, stable in treatment effect and particularly suitable for domestic sewage treatment for scattered inhabitants in mountainous areas, and has fine environmental and economic benefits.
Description
Technical field
The present invention relates to environmental protection technical field, particularly relate to one way of life waste disposal plant.
Background technology
In the purifying treatment of sanitary sewage, the anaerobic treatment of microorganism species and aerobic treatment remove the guardian technique of sanitary sewage COD, nitrogen, phosphorus, relate to the processes such as stirring, aeration, backflow, focus in engineering at town domestic sewage and be used widely and obtain better effects.Existing sanitary sewage disposal technology and technique are suitable for cities and towns and concentrate Residential areas sanitary sewage to focus on engineering, have the advantage that treatment effect is good, stable, but also there is the deficiencies such as investment is large, energy consumption is high, Maintenance Difficulty.Disperse the sanitary sewage of resident family owing to not possessing the facilities such as rain dirty shunting, sewage collecting pipe network for vast mountain area, being difficult to utilize existing complete sewage disposal technology technique to carry out sanitary sewage focuses on; Current traditional village is discharged after mostly adopting rasterizing manure pit to carry out simple process to sanitary sewage and human and animal excreta, does not reach emission standard, therefore forms a large amount of point-source pollutions, cause water pollution or body eutrophication.
Summary of the invention
The object of the invention is to, a kind of family sanitary sewage dropping, aeration and biological strengthening and processing device is provided, the sanitary sewage that the basis of rasterizing manure pit solves further rural area dispersion resident family is easy fast, less energy-consumption, qualified discharge technical problem.
Technical problem solved by the invention realizes by the following technical solutions:
A kind of family sanitary sewage dropping, aeration and biological strengthening and processing device, comprise the water intaking valve for being connected with septic tank sewage draining exit, the high-order equalizing tank be connected with described water intaking valve, the drop chute be connected with described high-order equalizing tank, be positioned at the water leg below described drop plate, be positioned at the double oxygen reaction tank below described water leg, the water outlet be connected with described double oxygen reaction tank; It is characterized in that: utilize the height of water naturally to complete drop water aeration oxygenation process and agitating function; Fixed by the differential suspension carrier of active sludge anaerobic bacteria flora and aerobic flora, continuously anaerobic and aerobic reaction is carried out to sanitary sewage, remove the pollutent such as organic matter, nitrogen, phosphorus in sanitary sewage, realize the unpowered fast processing to sanitary sewage and qualified discharge.
Described drop chute water outlet weir plate adopts prionodont drop weir plate, and the vertical height of drop chute water outlet and water leg base plate is greater than 60cm, forms drop turbulent flow, increases the contact exchange area with air.
0.4m is greater than with the vertical height of double oxygen reaction tank water outlet liquid level bottom described water leg, water leg base plate interval 1cm hole diameter is the circular hole of 2.0mm, top drop accepted by water leg, by drop turbulent flow and the shock of water leg mesh floor, cushion after, again water distribution uniformity drippage, extend the swap time of drop and air, further aeration oxygen replenishing.
The present invention is according to alpine terrain, the above natural-drop of water-in and water-out liquid level 1m is formed by high-order equalizing tank, the gravity of water is utilized to form turbulent current by prionodont weir plate drop chute, turbulent flow current and water leg mesh floor clash into, disperse after drop onto double oxygen reaction tank, by fully contacting exchange with air in current nature drop process, complete aeration oxygen replenishing process, improve the dissolved oxygen content of disposing of sewage.
Described double oxygen reaction tank is that undertaking is dropped and carries out the core component of microorganism continuous anaerobic and aerobic reaction.In order to the shunting into and out of current in double oxygen reaction tank, the mouth of a river and one piece of spreader plate tilted is set out in double oxygen reaction tank middle and upper part, 5cm-10cm spacing is stayed between bottom spreader plate and at the bottom of double oxygen reaction tank, keep stirring up and down and the uniflux of current and suspending carrier, improve the contact reacts time of fixation of microbe; Oxygen reaction tank of holding concurrently fills the high-molecular porous suspended biological carrier particle of useful volume 40%, described bio-carrier proportion 0.95-1.05g/cm
3, specific surface area is greater than 500m
2/ m
3, carrier granule diameter 20-25mm, carrier is in suspension fluidization state; Suspended biological carrier colonization method adopts activated sludge process Dual culture method, inoculation of activated-sludge is compared by the muddy water of 1:3 with cesspool sewage, add in double oxygen reaction tank, leave standstill 10 hours, suspended sludge is got rid of rear continuum micromeehanics and aeration, the discharge of sewage is by 60% water inlet of design maximum flow, in the ratio aeration of gas-water ratio 1:1 ~ 2:1, control dissolution of contaminated water oxygen concn 3-4mg/L in reaction tank, cultured continuously 5-10 days, form stable anaerobism mycoderm successively at carrier surface to become reconciled oxygen mycoderm, now COD clearance is stable and be greater than 60%; Initial operating stage adjustment flooding quantity reaches design maximum flow and carries out flushing spoil disposal, makes absorption mud come off and get rid of reactor; Oxygen reaction tank steady operation period of holding concurrently controls flooding quantity within design discharge, hydraulic detention time 2.5-3 hours, falling under hydrodynamic effect, continuously stirring suspended biological carrier particle moves up and down, and maintain process sanitary sewage activity keto concentration 2.5-5mg/L scope in reaction tank, by continuous anaerobic reaction and the aerobic reaction of microorganism, remove the pollutent such as organic matter, nitrogen, phosphorus in sewage, realize the unpowered fast processing to sanitary sewage and qualified discharge.
Beneficial effect of the present invention: owing to have employed technique scheme, utilizes alpine terrain or high-order equalizing tank to form natural water level drop, relies on sewage self gravitation to complete drop water aeration oxygenation and agitating function; Meanwhile, utilize the anaerobic bacteria flora in the stable fixing active sludge of polymer suspension particulate vector strengthening and aerobic flora, form continuous print anaerobic-aerobic reaction system, improve wastewater treatment efficiency; This invented technology flow process and required equipment simple, suitable microminiaturized, without the need to oxygenation, stir equal power device, easy maintenance, build and processing cost low, sanitary sewage disposal effect stability, reaches emission standard, the sanitary sewage disposal of especially suitable vast mountain area dispersion resident family, has good environmental benefit and economic benefit.
Accompanying drawing explanation
Fig. 1 is a kind of structural representation of the present invention;
Fig. 2 is the removal effect of the present invention to sanitary sewage COD;
Fig. 3 is the removal effect of the present invention to sanitary sewage ammonia nitrogen;
Fig. 4 is the removal effect of the present invention to sanitary sewage total phosphorus.
Embodiment
The technique means, the creation characteristic that realize in order to the present invention, reach object and effect is easy to understand, below in conjunction with daily handling ability 4M
3concrete engineering example, set forth the present invention further.
With reference to Fig. 1, a kind of family sanitary sewage dropping, aeration and biological strengthening and processing device, comprise the water intaking valve for being connected with septic tank sewage draining exit, the high-order equalizing tank be connected with described water intaking valve, the drop chute be connected with described high-order equalizing tank, water leg below described drop plate, the double oxygen reaction tank below described water leg, water outlet six part be connected with described double oxygen reaction tank forms.
Water intaking valve is internal diameter 50mm UPVC standard ball valve, flooding velocity scope is 0-300L/H, the feed-water end external diameter 50mm of water intaking valve, the pvc pipe of wall thickness 2mm is connected with septic tank sewage draining exit, water side external diameter 50mm, the pvc pipe of wall thickness 2mm is connected to the suitable for reading of high-order equalizing tank, and water outlet connects a downward elbow, makes to enter sewage and flows into high-order equalizing tank vertically downward.
Empty length 60cm × 60cm × 100cm stainless steel square bucket in high-order equalizing tank design, highly designs 30cm × 5cm rectangle water outlet, to install drop chute at high-order equalizing tank water-in to identity distance base plate 75cm; High-order equalizing tank useful volume 270L.High-order equalizing tank mainly plays the effect regulating water level and the water yield.
Drop chute is stainless steel rectangular groove, wide 30cm bottom drip, both sides waterwall height 10cm, drop chute length 80cm; Drop chute water-in is 30cm × 5cm inlet of a rectangular conduit, and drop chute water-in and high-order equalizing tank water outlet are tightly connected.Drop chute flow range is 0-400 L/H; Drop chute water outlet weir plate is made into spination, to form drop turbulent flow, increases and exchanges with the contact of air; Test-results shows, at the drop height of same 1m, in flow velocity 150L/H situation, before and after the drop of spination weir plate drop chute, dissolution of contaminated water oxygen increased value reaches 2.7mg/L, comparatively before and after the drop of flat mouth weir plate drop chute, dissolution of contaminated water oxygen increased value (1.8 mg/L) improves 0.9mg/L, along with the increase of drop height and flow, the aeration oxygen replenishing effect of spination weir plate drop chute is more obviously good.
Water leg is positioned at below drop chute, for the stainless steel rectangular tank of length 80cm × 80cm × 40cm, it is the sieve plate in the 2.0mm aperture of interval 1cm bottom water leg, to occur that continuous water droplet is good, drip height 40cm, having that drop is collected, clashed into, dispersion, buffering, drippage function, increase further the contact area of drop and air and extend swap time, raising aeration oxygen replenishing effect.At increase water leg, drop height 60cm, drip height 40cm, drop water aeration under the condition of flow 150L/H, and the dissolved oxygen increased value of sewage reaches 3.2mg/L, improves 0.5mg/L compared with dissolved oxygen increased value 2.7 mg/L of the direct drop water aeration of 100cm.
Oxygen reaction tank of holding concurrently is positioned at below water leg, for the stainless steel rectangular tank of length 100cm × 100cm × 80cm, apart from reaction tank base plate 60cm, aperture 65mm water outlet is highly being set, one piece of inclination spreader plate is set near water outlet, stay 10cm interval with double oxygen reaction tank base plate bottom spreader plate, under drop dynamic action, keep stirring up and down and the uniflux of current and suspended biological carrier, realize shunting completely into and out of current in double oxygen reaction tank; Hold concurrently oxygen reaction tank useful volume 600L, fills 240cm
3high-molecular porous suspended biological carrier particle, after active sludge inoculation domestication is stable, it is the core cell of sewage disposal, mainly by continuous anaerobic reaction and the aerobic reaction of the microorganism species of the active sludge of solidification, the principal pollutant such as organic matter, nitrogen, phosphorus in quick removal sewage, realize the advanced treatment of sanitary sewage.The high-molecular biologic particulate vector proportion 0.98g/cm filled
3, specific surface area 580m
2/ m
3, carrier granule diameter 20mm, carrier is in suspension fluidization state, bio-carrier colonization method adopts activated sludge process Dual culture method, inoculation of activated-sludge is compared by the muddy water of 1:3 with cesspool sewage, add in double oxygen reaction tank, leave standstill 10 hours, suspended sludge is got rid of rear continuum micromeehanics and aeration, the discharge of sewage presses 120L/H water inlet, in the ratio aeration of gas-water ratio 1:1, in reaction tank, dissolution of contaminated water oxygen concn is 3.5mg/L, cultured continuously 7 days, form stable anaerobism mycoderm at carrier surface to become reconciled oxygen mycoderm, now COD clearance reaches 62%, initial operating stage adjustment flooding quantity reaches design maximum flow 300L/H and carries out flushing spoil disposal, makes absorption mud come off and get rid of reactor, oxygen reaction tank steady operation period of holding concurrently controls flooding quantity within 200L/H, hydraulic detention time is greater than 3 hours, falling under hydrodynamic effect, continuous disturbance suspended biological carrier rolls up and down, dissolved oxygen concentration of disposing of sewage in reaction tank maintains 3.5-4.5mg/L scope, by pioneer town, Jiangjin District, Xian Chi village utilizes this device to run process continuously, influent quality index is COD content 108-135mg/L, average COD content 122.4mg/L, influent ammonia nitrogen content 17.4-21.4mg/L, average ammonia-nitrogen content 19.5mg/L, water inlet total phosphorous 2.98-3.35mg/L, average total phosphorous 3.20mg/L, in continuous operational process, wastewater influent amount is 200L/H, hydraulic detention time 3H, the COD average removal rate of dropping, aeration and biological strengthening and processing device to sanitary sewage is 65.0%, and average effluent COD concentration maintains 42.7mg/L(Fig. 2), reach 34.7% to the average removal rate of ammonia nitrogen, average water outlet ammonia-nitrogen content maintains 12.7mg/L(Fig. 3), be 55.1% to the average removal rate of total phosphorus, average water outlet total phosphorous maintains 1.4mg/L(Fig. 4), indices is stablized and is reached emission standard.
Water outlet is the exhaust unit of water up to standard after process of the present invention, water outlet is positioned at the upper end of double oxygen reaction tank, be tightly connected with double oxygen reaction tank water port, in order to prevent microorganism suspended carrier particle loss loss, add one deck filtering net in double oxygen reaction tank water port, realize effectively being separated of suspending carrier and water; Be convenient to collection and the recycle of advanced treatment water up to standard, rising pipe 65mmPVC pipe connects.
Claims (4)
1. a family sanitary sewage dropping, aeration and biological strengthening and processing device, comprise the water intaking valve for being connected with septic tank sewage draining exit, the high-order equalizing tank be connected with described water intaking valve, the drop chute be connected with described high-order equalizing tank, be positioned at the water leg below described drop chute, be positioned at the double oxygen reaction tank below described water leg, the water outlet be connected with described double oxygen reaction tank; It is characterized in that: utilize the height of water naturally to complete drop water aeration oxygenation process and agitating function; Fixed by the differential suspension carrier of active sludge anaerobic bacteria flora and aerobic flora, continuously anaerobic and aerobic reaction is carried out to sanitary sewage, remove the pollutent such as organic matter, nitrogen, phosphorus in sanitary sewage, realize the unpowered fast processing to sanitary sewage and qualified discharge.
2. a kind of family according to claim 1 sanitary sewage dropping, aeration and biological strengthening and processing device, is characterized in that: drop chute water outlet weir plate adopts prionodont drop weir plate, and the vertical height of drop chute water outlet and water leg base plate is greater than 60cm.
3. a kind of family according to claim 1 sanitary sewage dropping, aeration and biological strengthening and processing device, it is characterized in that: be greater than 40cm with the vertical height of double oxygen reaction tank water outlet liquid level bottom water leg, water leg base plate interval 1cm hole diameter is the circular hole water distribution uniformity oxygenation of 2.0mm.
4. a kind of family according to claim 1 sanitary sewage dropping, aeration and biological strengthening and processing device, it is characterized in that: in order to the shunting into and out of current in double oxygen reaction tank, the spreader plate that water port and one piece tilt is set in double oxygen reaction tank middle and upper part, between bottom spreader plate and at the bottom of double oxygen reaction tank, stays 5-10cm spacing; Oxygen reaction tank of holding concurrently fills the high-molecular porous suspended biological carrier particle of useful volume 40%, described bio-carrier proportion 0.95-1.05g/cm
3, specific surface area is greater than 500m
2/ m
3, carrier granule diameter 20-25mm, carrier is in suspension fluidization state; Suspended biological carrier colonization method adopts activated sludge process Dual culture method, inoculation of activated-sludge is compared by the muddy water of 1:3 with cesspool sewage, add in double oxygen reaction tank, leave standstill 10 hours, suspended sludge is got rid of rear continuum micromeehanics and aeration, the discharge of sewage is by 60% water inlet of design maximum flow, in the ratio aeration of gas-water ratio 1:1 ~ 2:1, control dissolution of contaminated water oxygen concn 3-4mg/L, cultured continuously 5-10 days in reaction tank, form stable anaerobism mycoderm at carrier surface and to become reconciled oxygen mycoderm; Initial operating stage adjustment flooding quantity reaches design maximum flow and carries out flushing spoil disposal, makes absorption mud come off and get rid of reactor; Oxygen reaction tank steady operation period of holding concurrently controls flooding quantity within design discharge, keeps the sanitary sewage of process at the hydraulic detention time of whole device at 2.5-3 hours window.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410519071.2A CN104211179A (en) | 2014-10-07 | 2014-10-07 | Household domestic sewage drop aeration biological enhanced treatment device |
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| CN201410519071.2A CN104211179A (en) | 2014-10-07 | 2014-10-07 | Household domestic sewage drop aeration biological enhanced treatment device |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105481105A (en) * | 2016-01-18 | 2016-04-13 | 马鞍山市三环碧源水处理工程有限公司 | Novel sewage pretreatment equipment |
| CN106830307A (en) * | 2017-02-16 | 2017-06-13 | 云南中绿文德生态环保科技股份有限公司 | For the drop water aeration equipment and sewage water treatment method of the sanitary sewage disposal of plateau mountain area |
| CN107381795A (en) * | 2017-09-06 | 2017-11-24 | 湖南大辰环保科技有限公司 | A kind of modularization can be combined without aeration aerobic biochemical method of wastewater treatment and system |
| CN107673464A (en) * | 2017-11-13 | 2018-02-09 | 重庆大学 | A kind of power reoxygenation system of river course staged zero |
| CN108385807A (en) * | 2018-03-01 | 2018-08-10 | 铭聿建筑规划设计（深圳）有限公司 | A kind of water circulation structure based on sponge city |
| CN111333263A (en) * | 2020-03-09 | 2020-06-26 | 广州市环境保护工程设计院有限公司 | Multistage drop reoxygenation combined facultative biological filter sewage treatment system |
| CN114162972A (en) * | 2022-01-12 | 2022-03-11 | 重庆大学 | Drop reoxygenation multistage AO rural domestic sewage treatment device |
| CN114873729A (en) * | 2022-06-09 | 2022-08-09 | 重庆大学 | Baffling type bacteria-algae symbiotic sewage treatment system and treatment method |
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| CN101643278A (en) * | 2009-08-24 | 2010-02-10 | 重庆大学 | Subsurface flow constructed wetland sewage treatment system by drop water aeration oxygenation |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105481105A (en) * | 2016-01-18 | 2016-04-13 | 马鞍山市三环碧源水处理工程有限公司 | Novel sewage pretreatment equipment |
| CN105481105B (en) * | 2016-01-18 | 2017-10-20 | 马鞍山市三环碧源水处理工程有限公司 | A kind of new polluted water pretreatment apparatus |
| CN106830307A (en) * | 2017-02-16 | 2017-06-13 | 云南中绿文德生态环保科技股份有限公司 | For the drop water aeration equipment and sewage water treatment method of the sanitary sewage disposal of plateau mountain area |
| CN107381795A (en) * | 2017-09-06 | 2017-11-24 | 湖南大辰环保科技有限公司 | A kind of modularization can be combined without aeration aerobic biochemical method of wastewater treatment and system |
| CN107673464A (en) * | 2017-11-13 | 2018-02-09 | 重庆大学 | A kind of power reoxygenation system of river course staged zero |
| CN108385807A (en) * | 2018-03-01 | 2018-08-10 | 铭聿建筑规划设计（深圳）有限公司 | A kind of water circulation structure based on sponge city |
| CN108385807B (en) * | 2018-03-01 | 2019-12-17 | 铭聿建筑规划设计（深圳）有限公司 | Water circulation structure based on sponge city |
| CN111333263A (en) * | 2020-03-09 | 2020-06-26 | 广州市环境保护工程设计院有限公司 | Multistage drop reoxygenation combined facultative biological filter sewage treatment system |
| CN114162972A (en) * | 2022-01-12 | 2022-03-11 | 重庆大学 | Drop reoxygenation multistage AO rural domestic sewage treatment device |
| CN114873729A (en) * | 2022-06-09 | 2022-08-09 | 重庆大学 | Baffling type bacteria-algae symbiotic sewage treatment system and treatment method |
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Application publication date: 20141217 |