CN104118942B - A kind of sewage treatment process - Google Patents
A kind of sewage treatment process Download PDFInfo
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- CN104118942B CN104118942B CN201410375807.3A CN201410375807A CN104118942B CN 104118942 B CN104118942 B CN 104118942B CN 201410375807 A CN201410375807 A CN 201410375807A CN 104118942 B CN104118942 B CN 104118942B
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- immobilized microorganism
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Abstract
The invention discloses a kind of sewage treatment process, comprise artificial swamp pond, suction culvert, aerating apparatus, water unit and immobilized microorganism plate, totally 5 layers from top to bottom, described artificial swamp pond, is followed successively by: gravel bed, aerobic immobilized microorganism layer, anaerobic immobilized microbial layer, Slag Layer and sand stone layer; Gravel bed is provided with suction culvert, aerobic immobilized microorganism layer and anaerobic immobilized microbial layer are all provided with immobilized microorganism plate, in the middle of aerobic immobilized microorganism layer and anaerobic immobilized microbial layer, aerating apparatus is installed, between aerobic immobilized microorganism layer and gravel bed, woven wire is set; Water unit is made up of posticum, water leg and water leg water shoot; Artificial swamp pond adopts steel and concrete structure build and arrange impervious barrier.Tool of the present invention has the following advantages: immobilized microorganism, microorganism aerobic anaerobic treatment and artificial swamp are organically combined, strengthen the effect of microorganism in artificial swamp.
Description
Technical field
The present invention relates to sewage treatment area, more specifically to a kind of sewage treatment process.
Background technology
Artificial swamp is a kind of Novel sewage treatment process that 20 century 70s grow up, and he utilizes the triple synergy of the physics in natural system, chemistry and biology to realize dirty water purification.Constructed wetland waste water treatment technology has that treatment effect is good, removal efficiency of nitrogen and phosphorus is high, during-operation service is convenient, engineering capital construction and the advantage such as running expense is low, is thus widely applied to sanitary sewage disposal, Industrial Waste Water Treatments with, mine and oil production, agriculture point source and pollution of area source and body eutrophication issue handling.
Traditional activated sludge process is applied widely in sewage disposal, main because containing a large amount of living microorganisms in active sludge, these microorganisms fast and effeciently can remove the organism in sewage, and have good Nitrogen/Phosphorus Removal, but traditional activated sludge process mud is blended in sewage and is in a kind of fluidised form.At present, immobilized microorganism technology is obtained pay close attention to widely both at home and abroad, as the patent No. is: describe a kind of immobilized microorganism preparation method in 200910056687.X patent specification; Immobilized microorganism principal character is that Microorganism incubation becomes a kind of solid-state, is placed in sewage and has fixing shape, and microorganism not loss of activity, there is good wastewater treatment efficiency.
Artificial swamp is longer compared to other traditional sewage treatment process hydraulic detention times at sewage treatment process, other objectionable impuritiess such as the organism in the sewage of artificial swamp, nitrogen phosphorus are removed mainly through the adsorption of filtrate, a small amount of microorganism can be adsorbed in filtrate gap, microorganism is by the organism in self-acting removal sewage and nitrogen phosphorus, but the less therefore microbial process of the content of microorganisms in filtrate is limited, excessive free state microorganism easily causes filter clogging.
Immobilized microorganism is mainly applied in artificial wet land system by the present invention, microorganism also has aerobic and anaerobism alternate environment, increase microbial process effect, simultaneously because microorganism is in immobilized state, therefore not easily cause artificial swamp to block, improve the wastewater treatment efficiency of artificial swamp entirety.
Summary of the invention
The object of the invention is to, provide a kind of sewage treatment process, immobilized microorganism, microorganism aerobic anaerobic treatment and artificial swamp organically combine by native system.Adopt native system effectively can improve the wastewater treatment efficiency of artificial swamp; For achieving the above object, present invention employs following technical scheme:
A kind of sewage treatment process, comprise artificial swamp pond, suction culvert, aerating apparatus and water unit, it is characterized in that, also comprise immobilized microorganism plate, totally 5 layers from top to bottom, described artificial swamp pond, is followed successively by: gravel bed, aerobic immobilized microorganism layer, anaerobic immobilized microbial layer, Slag Layer and sand stone layer; Described gravel bed is provided with the suction culvert be made up of water inlet pipe and water distribution branch pipe, and water inlet pipe, through pool wall, water inlet pipe is provided with Liquid valve and liquid meter; Described aerobic immobilized microorganism layer and anaerobic immobilized microbial layer are all provided with immobilized microorganism plate, in the middle of aerobic immobilized microorganism layer and anaerobic immobilized microbial layer, the aerating apparatus be made up of aeration house steward and aeration branch pipe is installed, aeration house steward is through pool wall, aeration house steward is provided with gas valve and gas meter, between aerobic immobilized microorganism layer and gravel bed, woven wire is set; Described water unit is made up of posticum, water leg and water leg water shoot, and install filter at posticum place, water unit is arranged on upper end, artificial swamp pond, and itself and water inlet pipe place pool wall oppose; Described artificial swamp pond adopts steel and concrete structure to build, and pond body internal side wall and bottom surface arrange impervious barrier.
Described immobilized microorganism plate is made by mixing with chemical agent to be put in template by active sludge, is fixed in template after active sludge is dry; Immobilized microorganism plate thickness is 5cm ~ 7cm, and long is 45cm ~ 60cm, and wide is 25cm ~ 40cm; Immobilized microorganism plate is provided with 4 fixing feet.
Described aerobic immobilized microorganism layer vertical direction installs 2 ~ 3 layers of immobilized microorganism plate, aerobic immobilized microorganism layer height is 30cm ~ 40cm, anaerobic immobilized microbial layer vertical direction installs 2 ~ 3 layers of immobilized microorganism plate, and anaerobic immobilized microbial layer height is 20cm ~ 30cm.
Described gravel bed from top to bottom grain size of gravel diminishes successively, and the superiors' grain size of gravel is 3cm ~ 3.8cm, and gravel bed orlop grain size of gravel is 1cm ~ 2cm, and gravel bed height is 25cm ~ 35cm.
Described Slag Layer slag particle diameter is 7mm ~ 9mm, and Slag Layer height is 25cm ~ 30cm.
Described sand stone layer gravel size is 2mm ~ 5mm, and sand stone layer height is 25cm ~ 35cm.
Described woven wire is connected by bayonet socket and draw-in groove with pool wall in artificial swamp pond, and woven wire mesh aperture is less than 1cm.
Described water inlet pipe, water distribution branch pipe, aeration house steward and aeration branch pipe all adopt pvc pipe.
The present invention has following advantage: immobilized microorganism, microorganism aerobic anaerobic treatment and artificial swamp are organically combined, strengthen the effect of microorganism in artificial swamp, and effectively improve wastewater treatment efficiency, floor space is little, and cost of investment is low.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is A-A sectional view of the present invention;
Fig. 3 is B-B sectional view of the present invention;
Fig. 4 is C-C sectional view of the present invention;
Fig. 5 is D-D sectional view of the present invention;
Fig. 6 is E of the present invention, i.e. woven wire junction, enlarged view.
Wherein, 1, artificial swamp pond; 2, gravel; 3, slag; 4, woven wire; 5, immobilized microorganism plate; 6, sandstone; 7, water leg; 8, water leg water shoot; 9, posticum; 10-a, aeration house steward; 10-b, water inlet pipe; 11-a, gas valve; 11-b, Liquid valve; 12-a, gas meter; 12-b, liquid meter; 13-a, aeration branch pipe; 13-b, water distribution branch pipe; 14, bayonet socket; 15, draw-in groove.
Embodiment
With the drawings and specific embodiments, the present invention is further detailed explanation below:
As shown in Fig. 1-4, a kind of sewage treatment process, comprise artificial swamp pond 1, suction culvert, aerating apparatus and water unit, also comprise immobilized microorganism plate 5, totally 5 layers from top to bottom, described artificial swamp pond, is followed successively by: gravel bed, aerobic immobilized microorganism layer, anaerobic immobilized microbial layer, Slag Layer and sand stone layer, gravel bed is provided with the suction culvert be made up of water inlet pipe 10-b and water distribution branch pipe 13-b, and water inlet pipe 10-b, through pool wall, water inlet pipe 10-b is provided with Liquid valve 11-b and liquid meter 12-b, water inlet pipe 10-b is connected with source of sewage water, and sewage controls flooding velocity by water inlet pipe 10-b by Liquid valve 11-b and liquid meter 12-b, is evenly distributed on pond from water distribution branch pipe 13-b, aerobic immobilized microorganism layer and anaerobic immobilized microbial layer are all provided with immobilized microorganism plate 5, the aerating apparatus be made up of aeration house steward 10-a and aeration branch pipe 13-a is installed between aerobic immobilization layer and anaerobic immobilized microbial layer, aeration house steward 10-a is through pool wall, aeration house steward 10-a is provided with gas valve 11-a and gas meter 12-a, aeration house steward 10-a and aerogenesis apparatus are by managing to being connected, and gas meter 12-a and gas valve 11-a can control aeration rate, between aerobic immobilized microorganism layer and gravel bed, woven wire 4 is set, mainly prevents gravel 2 from spilling, water unit is by posticum 9, water leg 7 and water leg water shoot 8 form, at posticum place, filter is installed, prevent small particle size sandstone from revealing from posticum, water unit is arranged on upper end, artificial swamp pond, and water unit and water inlet pipe 10-b place pool wall oppose, sewage is flowed out by water distribution branch pipe 13-b and is filtered by gravel 2 successively, microorganism aerobic process, microbiological anaerobic process, slag 3 filters, sandstone 6 flows out to water leg 7 from posticum 9 after filtering, flow out from the water leg water shoot 8 water leg 7 again, realize the treating processes of whole device, in whole technique, a large amount of SS is removed in the filtration that sewage have passed through gravel, then enter aerobic immobilized microorganism layer and carry out aerobic respiration under the aeration environment of aeration tube, consume a large amount of organism, by NH
3-N changes into NO
3-N, containing NO
3the Digestive system of-N enters anaerobic immobilized microbial layer, by a large amount of NO in microbiological anaerobic environment
3-N changes into N
2release, the sewage after microbiological treatment is discharged through the filtration of slag 3 and sandstone 6, effectively improves nitric efficiency, artificial swamp pond 1 adopts steel and concrete structure to build, sound construction, and pond body internal side wall and bottom surface arrange impervious barrier, prevents the raw seepage of time long hair.
Wherein, Immobilized microorganism plate 5 is made by mixing with chemical agent to be put in template by active sludge, is fixed in template after active sludge is dry; Immobilized microorganism plate 5 thickness is 5cm ~ 7cm, and long is 45cm ~ 60cm, and wide is 25cm ~ 40cm; Immobilized microorganism plate is provided with 4 fixing feet, is convenient to be fixedly connected with pond body.In pond, aerobic immobilized microorganism layer vertical direction installs 2 ~ 3 layers of immobilized microorganism plate, aerobic immobilized microorganism layer height is 30cm ~ 40cm, anaerobic immobilized microbial layer vertical direction installs 2 ~ 3 layers of immobilized microorganism plate, and anaerobic immobilized microbial layer height is 20cm ~ 30cm.
Described gravel bed from top to bottom grain size of gravel diminishes successively, and the superiors' gravel 2 particle diameter is 3cm ~ 3.8cm, and gravel bed orlop gravel 2 particle diameter is 1cm ~ 2cm, and gravel bed height is 25cm ~ 35cm.
Slag Layer slag 3 particle diameter is 7mm ~ 9mm, and Slag Layer height is 25cm ~ 30cm.
Sand stone layer sandstone 6 particle diameter is 2mm ~ 5mm, and sand stone layer height is 25cm ~ 35cm.
As shown in Figure 6, described woven wire 4 is connected by bayonet socket 14 and draw-in groove 15 with pool wall in artificial swamp pond 1, and woven wire 4 mesh aperture is less than 1cm.
Suction culvert as shown in Figure 5, water inlet pipe 10-b, water distribution branch pipe 13-b, aeration house steward 10-a and aeration branch pipe 13-a all adopt pvc pipe.
Embodiment
In a preferred embodiment, the long 1.5m of artificial swamp pond body, wide 1.2m, high 1.2m; Gravel bed top layer selects the gravel selecting 1cm ~ 2cm bottom the gravel of 3cm ~ 3.8cm, gravel thickness 25cm, and suction culvert is arranged in gravel bed; Slag Layer slag particle diameter selects 7mm ~ 9mm, slag thickness 30cm, and sandstone selects particle diameter to be 2mm ~ 5mm, rubble thickness 25cm; Aerobic immobilized microorganism layer installs 2 layers of immobilized microorganism plate up and down altogether, install 4 pieces for every layer, anaerobic immobilized microbial layer installs 2 layers of immobilized microorganism plate up and down altogether, install 4 pieces for every layer, every block immobilized microorganism board size: long × wide × high: 45cm × 25cm × 6cm, aerating apparatus is arranged between aerobic immobilized microorganism layer and anaerobion layer, and aeration branch pipe adopts micro-pore aeration; Flooding quantity is 0.1m
3/ h, aeration rate is 0.5 ~ 0.8m
3/ h, hydraulic detention time is about 20h.
Once form is carry out sewage disposal to this embodiment to detect the experimental data drawn:
Can be found by upper table: artificial wetland effluent water quality is highly stable, TN clearance reaches more than 83%, other kinds pollutants removal rate all can reach more than 80% clearance, reaches one-level emission standard A in " municipal sewage plant's pollutant emission standard " (GB18918-2002).
Claims (8)
1. a sewage treatment process, comprise artificial swamp pond, suction culvert, aerating apparatus and water unit, it is characterized in that, also comprise immobilized microorganism plate, totally 5 layers from top to bottom, described artificial swamp pond, is followed successively by: gravel bed, aerobic immobilized microorganism layer, anaerobic immobilized microbial layer, Slag Layer and sand stone layer; Described gravel bed is provided with the suction culvert be made up of water inlet pipe and water distribution branch pipe, and water inlet pipe, through pool wall, water inlet pipe is provided with Liquid valve and liquid meter; Described aerobic immobilized microorganism layer and anaerobic immobilized microbial layer are all provided with immobilized microorganism plate, in the middle of aerobic immobilized microorganism layer and anaerobic immobilized microbial layer, the aerating apparatus be made up of aeration house steward and aeration branch pipe is installed, aeration house steward is through pool wall, aeration house steward is provided with gas valve and gas meter, between aerobic immobilized microorganism layer and gravel bed, woven wire is set; Described water unit is made up of posticum, water leg and water leg water shoot, and install filter at posticum place, water unit is arranged on upper end, artificial swamp pond, and itself and water inlet pipe place pool wall oppose; Described artificial swamp pond adopts steel and concrete structure to build, and pond body internal side wall and bottom surface arrange impervious barrier.
2. a kind of sewage treatment process according to claim 1, is characterized in that, described immobilized microorganism plate is made by mixing with chemical agent to be put in template by active sludge, is fixed in template after active sludge is dry; Immobilized microorganism plate thickness is 5cm ~ 7cm, and long is 45cm ~ 60cm, and wide is 25cm ~ 40cm; Immobilized microorganism plate is provided with 4 fixing feet.
3. a kind of sewage treatment process according to claim 1 and 2, it is characterized in that, described aerobic immobilized microorganism layer vertical direction installs 2 ~ 3 layers of immobilized microorganism plate, aerobic immobilized microorganism layer height is 30cm ~ 40cm, anaerobic immobilized microbial layer vertical direction installs 2 ~ 3 layers of immobilized microorganism plate, and anaerobic immobilized microbial layer height is 20cm ~ 30cm.
4. a kind of sewage treatment process according to claim 1 and 2, it is characterized in that, described gravel bed from top to bottom grain size of gravel diminishes successively, and the superiors' grain size of gravel is 3cm ~ 3.8cm, gravel bed orlop grain size of gravel is 1cm ~ 2cm, and gravel bed height is 25cm ~ 35cm.
5. a kind of sewage treatment process according to claim 1 and 2, is characterized in that, described Slag Layer slag particle diameter is 7mm ~ 9mm, and Slag Layer height is 25cm ~ 30cm.
6. a kind of sewage treatment process according to claim 1 and 2, is characterized in that, described sand stone layer gravel size is 2mm ~ 5mm, and sand stone layer height is 25cm ~ 35cm.
7. a kind of sewage treatment process according to claim 1, is characterized in that, described woven wire is connected by bayonet socket and draw-in groove with pool wall in artificial swamp pond, and woven wire mesh aperture is less than 1cm.
8. a kind of sewage treatment process according to claim 1 and 2, is characterized in that, described water inlet pipe, water distribution branch pipe, aeration house steward and aeration branch pipe all adopt pvc pipe.
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| CN201410375807.3A CN104118942B (en) | 2014-08-01 | 2014-08-01 | A kind of sewage treatment process |
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| CN104118942B true CN104118942B (en) | 2016-02-03 |
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| CN104926043B (en) * | 2015-06-23 | 2017-02-01 | 徐玉仙 | Sewage treatment system device |
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| CN103708622A (en) * | 2014-01-02 | 2014-04-09 | 东华大学 | Microbial fuel cell constructed wetland for efficiently treating organic sewage |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6863816B2 (en) * | 2002-06-17 | 2005-03-08 | Dharma Living Systems, Inc. | Tidal vertical flow wastewater treatment system and method |
| KR101213067B1 (en) * | 2010-06-14 | 2012-12-18 | 주식회사 아썸 | Ecological sewage water treatment system |
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Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2661680Y (en) * | 2003-09-04 | 2004-12-08 | 中国科学院沈阳应用生态研究所 | Sewage ecological treatment arrangement for artificial wetland |
| CN101007688A (en) * | 2007-01-19 | 2007-08-01 | 天津市水利科学研究所 | Stirring type undercurrent wetland water body purification apparatus and water body purification method |
| CN101066808A (en) * | 2007-05-24 | 2007-11-07 | 浙江大学 | Ventilating and baffling artificial wetland simulator |
| CN101538086A (en) * | 2009-02-26 | 2009-09-23 | 浙江省环境监测中心 | Power-free integrated constructed wetland waste water treatment technology |
| CN101629173A (en) * | 2009-08-20 | 2010-01-20 | 上海交通大学 | Immobilized microorganism preparation method |
| CN101665310A (en) * | 2009-09-22 | 2010-03-10 | 中山市环保实业发展有限公司 | Method for treating wastewater in artificial wetland and wastewater treating device for implementing method |
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| CN103708622A (en) * | 2014-01-02 | 2014-04-09 | 东华大学 | Microbial fuel cell constructed wetland for efficiently treating organic sewage |
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