CN102503021A - Tree purification domestic sewage treatment system - Google Patents
Tree purification domestic sewage treatment system Download PDFInfo
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- CN102503021A CN102503021A CN2011103358185A CN201110335818A CN102503021A CN 102503021 A CN102503021 A CN 102503021A CN 2011103358185 A CN2011103358185 A CN 2011103358185A CN 201110335818 A CN201110335818 A CN 201110335818A CN 102503021 A CN102503021 A CN 102503021A
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Abstract
A tree purification domestic sewage treatment system comprises a sediment/biological anaerobic treatment system and a tree/soil comprehensive treatment system. The sediment/biological anaerobic treatment system comprises a first reaction tank, and a sealing cover plate is arranged at the top of the first reaction tank. The tree/soil comprehensive treatment system comprises a second reaction tank, a soil layer and a filter layer are sequentially arranged on the second reaction tank from top to bottom, and trees are planted on the soil layer. The terrain of the first reaction tank is higher than that of the second reaction tank, and the first reaction tank is connected with the second reaction tank. The tree purification domestic sewage treatment system considers willow root systems and soil purification of sewage as a main body and can effectively dispose domestic sewage of private investors in villages in mountainous areas.
Description
Technical field
The present invention and a kind of Sewage treatment systems are specifically related to a kind of trees purifying domestic sewage treatment system.
Background technology
Along with improving constantly of living standards of the people, the pollution problem of domestic sewage in rural areas by using is also more and more outstanding.Because the hilly and mountainous land rural residence disperses, the little dispersion discharging of sewage amount generation, reason such as the weak and shortage of funding of present stage green technology strength does not also form practical waste disposal plant and technology in addition, causes the rural residence environment abominable.The innoxious Ecological Disposal of domestic sewage in rural areas by using will be an important content of being badly in need of construction in the new countryside construction.
At present, domestic sewage in rural areas by using generally enters methane-generating pit in a conventional manner, with the pond in after organic agronomic crop accomplishes fermenting process and produces biogas, form natural pond liquid and directly discharge, the polluted surface water body, environmental exposure is very big.Present stage promote to be handled the biomembrance process, biological filter, artificial swamp, the aerobic pool, land percolation of dispersed sewage and the Ecological Disposal technology and the pattern of the comprehensive treating process that is composited by them; Though sanitary wastewater is reached effective processing; But cost of investment is higher for the family that disperses the only institute of simple gate of peasant household, and is not suitable for and handles that the water yield is little, the irregular hilly and mountainous land domestic sewage in rural areas by using of discharging.
Summary of the invention
The present invention provides a kind of trees purifying domestic sewage treatment system, is the main body with willow root system, soil sanitation sewage, can effectively handle hills mountainous rural area casual household sewage.
Above-mentioned purpose of the present invention is to realize through such technical scheme: trees purifying domestic sewage treatment system; Comprise deposition/bio anaerobic treatment system; Trees/soil total system; Said deposition/bio anaerobic treatment system comprises first reaction tank, and the first reaction tank top is provided with seal cover board; Said trees/soil total system comprises second reaction tank, and second reaction tank is provided with pedosphere, filtering layer from top to bottom successively, and the pedosphere kind is implanted with trees; Relative second reaction tank of first reaction tank is positioned at a physical features high position, and first reaction tank connects second reaction tank.
The first reaction tank inside is provided with dividing plate.
The root system of trees is positioned at the intersection of pedosphere and filtering layer.
Filtering layer is made up of fine sand layer, thin pebble bed, rubble layer from top to bottom.
Second reaction tank is connected with rising pipe, and rising pipe is provided with gate valve.
A kind of trees purifying domestic sewage treatment process is made up of following steps:
Step 1: sewage is collected in the first lower reaction tank of physical features through inlet channel; Seal cover board is established at the first reaction tank top, and sewage flows into the back and in the pond, precipitates through the dividing plate step, in dwelling period, forms anaerobic reaction; Utilize the metabolic activity in the microbial life process; With the organism decomposition and inversion is simple inorganics, thereby removes the organism in the sewage, overflows to the second lower reaction tank of physical features then;
Step 2: second reaction tank is followed successively by trees, pedosphere, fine sand layer, thin pebble bed and rubble layer from top to bottom; The root system of trees is planted in pedosphere and fine sand layer intersection; At the bottom of the anaerobism oettIed sewage infiltrated the pond along the pedosphere cross flow earlier then gradually, sewage was discharged through rising pipe after treatment;
Accomplish sanitary sewage disposal through above-mentioned steps.
Said trees are adopted Salicaceae Salix seeds.
Trees purifying domestic sewage treatment system of the present invention adopts the willow to the organic pollutant good purification to come purifying domestic sewage, but the organism in the high evaporation speed of willow and the efficient absorption sewage of growing fast.Total system makes full use of the discrepancy in elevation of physical features, and by gravity drainage, floor space is little, need not any energy consumption, is fit to very much the complicated landform in mountain area, hills, and the dispersive resident family and the domestic sewage in rural areas by using water yield be less, discharge irregular characteristics.
Gate valve is set in order to the residence time of control sewage and the discharging of water quality up to standard on the rising pipe.
The one-level treating processes is that the step deposition is carried out with anaerobic digestion simultaneously; Settling tank plays the regulating pondage effect, in dwelling period, forms anaerobic reaction simultaneously, utilizes the Metabolic activity in the microbial life process; With the organism decomposition and inversion is simple inorganics, makes it change into small molecular organic acid, CO
2, H
2, CH
4Deng, and prepare for denitrogenation dephosphorizing, increase second-stage treatment efficient.
The second-stage treatment unit is to be main with the willow purification; Soil treating be filtered into auxilliary WWT unit; Wherein the root system of trees can absorb, adsorb, fix and decompose the organism in the sewage with soil and microbiological comprehensive effect, reduces TP, TN, COD and BOD in the water significantly.Effluent stream is filtered the back qualified discharge via the filtering layer that fine sand layer, thin pebble bed and rubble layer constitute.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the present invention is described further:
Fig. 1 is the sewage collecting pipe network figure of system of the present invention;
Fig. 2 is a system construction drawing of the present invention.
Embodiment
As shown in Figure 1, system of the present invention comprises inlet channel 1, deposition/bio anaerobic treatment system 2, trees/soil total system 3, rising pipe 8.
Deposition/bio anaerobic treatment system 2 comprises that first reaction tank, 9, the first reaction tanks, 9 tops are provided with seal cover board 10.
Trees/soil total system 3 comprises that second reaction tank, 5, the second reaction tanks 5 are provided with pedosphere 6, filtering layer 7 from top to bottom successively, and pedosphere is implanted with trees 4 for 6 kinds.
First reaction tank, 9 relative second reaction tanks 5 are positioned at a physical features high position, and first reaction tank 9 connects second reaction tank 5.
First reaction tank, 9 inside are provided with dividing plate 11.The root system of trees 4 is positioned at the intersection of pedosphere 6 and filtering layer 7.Filtering layer 7 is made up of fine sand layer, thin pebble bed, rubble layer from top to bottom.Second reaction tank 5 is connected with rising pipe 8, and rising pipe 8 is provided with gate valve.
The sewage that the rural area casual household produces gets into deposition/bio anaerobic treatment system 2 by a main pipe line 1 after sewage network is collected, in this system, can carry out the processing aspect two to sewage.On the one hand; Be provided with two sides water retaining separater 11 in first reaction tank 9; Sewage can be in the overflow of dividing plate top, so thereby sewage can be removed bigger PM for particulate matter and silt relief supernatants entering trees/soil total systems 3 through three grades of precipitation process, and regulate water quality and quantity simultaneously.On the other hand; The seal cover board 10 at top can let first reaction tank 9 be in the anoxic environment; Sewage changes the organism of polymer difficult degradation into organism that low molecule is prone to be degraded through the anaerobic digestion effect; Denitrogenation promotes the release of phosphorus and the ratio of raising BOD/COD, for second-stage treatment creates favorable conditions.
After sewage gets into trees/soil total system 3; After sewage infiltrates willow root system and pedosphere 6; Both can satisfy the requirement of crop, and can reduce the content of organic pollutant in the sewage simultaneously through the willow root system to the absorption of organic pollutant and absorption again moisture and nutrient.Utilize ecosystem self regulating and control mechanism that soil-mikrobe-trees constitutes and the comprehensive purifying function of pollutent is comprised that multiple effects such as plant is fixed, microbiological deterioration, nitration denitrification, absorption, redox realize that sewage naturals purify.After filtering through the filtering layer 7 by second reaction tank, 5 bottoms, sewage can access effectively and purify at last.Gate valve on the pond afterbody rising pipe 8 is used to regulate the water quality and quantity of trees/soil total system 3, guarantees that the willow of plantation can be because of lack of water or the too high normal growth that influences of sewage organic loading.
Through the sewage after the native system processing, the clearance of phosphorus is 97%, and the clearance of total nitrogen is about 90%, and the clearance of BOD is about 85%, and the clearance of COD is about 80%.
Embodiment:
Rural area, mountain area, hills, Hubei Province, peasant household is sparsely populated, and the farming room, three families of relative proximity is distributed in according to physical features place, hillside from high to low, each household 3 ~ 4 people, water consumption 50L/d adds up to water total amount 0.6m per capita
3/ d.Wastewater discharge is by 80% of the total water amount, wastewater discharge 0.48 m
3/ d.The design-build processing power is 0.5 m
3The system of the present invention of/d, sanitary wastewater qualified discharge after treatment.Concrete applying step is following:
1), the place is selected.The place that selection is lower than resident family physical features, and have certain gradient.
2), determining dimensions is built in the two stages of treatment unit.According to known mass flow and ground potential condition adjustment size, the first order reaction pool size is 1m * 2m * 1m, and the second order reaction pond is 4m * 4m * 1m.
3), Sewage treatment systems builds.Build cement baffle and top blind flange, and the inner leakproof in attentive response pond.The pond tail makes up flood discharging groove, and the rising pipe of bottom is installed sluice, so that regulate the water quality and quantity in the second-stage treatment pond at any time.
4), the selection of filtrate.Select local fine sand and cobble, thin cobble diameter is 1 ~ 2mm, and the rubble diameter is 3 ~ 6mm.Fine sand bed thickness 8cm, thin cobble bed thickness 15cm, rubble bed thickness 20cm.
5), selection of trees and cultivation.Select local Da Ye willow and dry land willow as the seeds of purifying waste water, this seeds growth metabolism speed is fast, happiness water, energy fast purification sewage.The tree height more than one meter and root system in great numbers.Because the domestic sewage in rural areas by using discharging is irregular, can guarantee the water yield and organic loading in the second-stage treatment pond through adjusting water valve for guaranteeing the trees normal growth.
Willow belongs to the quick growing species of trees, generally is grown in the mountain area, hills, and is cold-resistant, drought-enduring, and growth absorbs the balanced nutritious liquid of nitrogenous phosphorated in the soil, in bioenergy production, plays the effect that consumes water pollutant, is used for WWT tool advantage.Utilize the fast characteristics of its growth, can remove hazardous compound in the sewage through frequent felling; Its high transpiration rate and root system are water-fast flood that characteristic makes can be through irrigating the harmful substances in the effluent sewerage repeatedly; It can also keep a large amount of nutrients, fertilizing soil conversely in soil～botanical system.Outside inferior, willow has very strong sorption to the cadmium in the water, is 94%～97.8% to the prussiate clearance in the aqueous solution.
Claims (7)
1. trees purifying domestic sewage treatment system; Comprise deposition/bio anaerobic treatment system (2); Trees/soil total system (3); It is characterized in that: said deposition/bio anaerobic treatment system (2) comprises first reaction tank (9), and first reaction tank (9) top is provided with seal cover board (10);
Said trees/soil total system (3) comprises second reaction tank (5), and second reaction tank (5) is provided with pedosphere (6), filtering layer (7) from top to bottom successively, and pedosphere (6) is planted and is implanted with trees (4);
Relative second reaction tank of first reaction tank (9) (5) is positioned at a physical features high position, and first reaction tank (9) connects second reaction tank (5).
2. according to the said trees purifying domestic sewage of claim 1 treatment system, it is characterized in that: said first reaction tank (9) inside is provided with dividing plate (11).
3. according to the said trees purifying domestic sewage of claim 1 treatment system, it is characterized in that: the root system of said trees (4) is positioned at the intersection of pedosphere (6) and filtering layer (7).
4. according to the said trees purifying domestic sewage of claim 1 treatment system, it is characterized in that: said filtering layer (7) is made up of fine sand layer, thin pebble bed, rubble layer from top to bottom.
5. according to the said trees purifying domestic sewage of claim 1 treatment system, it is characterized in that: said second reaction tank (5) is connected with rising pipe (8), and rising pipe (8) is provided with gate valve.
6. a trees purifying domestic sewage treatment process is characterized in that, is made up of following steps:
Step 1: sewage is collected in lower first reaction tank (9) of physical features through inlet channel (1); Seal cover board (10) is established at first reaction tank (9) top, and sewage flows into the back and in the pond, precipitates through dividing plate (3) step, in dwelling period, forms anaerobic reaction; Utilize the metabolic activity in the microbial life process; With the organism decomposition and inversion is simple inorganics, thereby removes the organism in the sewage, overflows to lower second reaction tank (5) of physical features then;
Step 2: second reaction tank (5) is trees (4), pedosphere (6), fine sand layer, thin pebble bed and rubble layer from top to bottom successively; The root system of trees (4) is planted in pedosphere (6) and fine sand layer intersection; At the bottom of the anaerobism oettIed sewage infiltrated the pond along pedosphere (6) cross flow earlier then gradually, sewage discharged through rising pipe (8) after treatment;
Accomplish sanitary sewage disposal through above-mentioned steps.
7. according to the said a kind of trees purifying domestic sewage treatment process of claim 6, it is characterized in that said trees (4) are adopted Salicaceae Salix seeds.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103358185A CN102503021A (en) | 2011-10-31 | 2011-10-31 | Tree purification domestic sewage treatment system |
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|---|---|---|---|
| CN2011103358185A CN102503021A (en) | 2011-10-31 | 2011-10-31 | Tree purification domestic sewage treatment system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103663783A (en) * | 2013-11-29 | 2014-03-26 | 湖州金能达印染有限公司 | Sewage decolorization device |
| CN103693744A (en) * | 2013-12-21 | 2014-04-02 | 浙江大学 | Method for purifying eutrophic water by employing willow partial flooding method and application thereof |
| CN113149333A (en) * | 2021-03-12 | 2021-07-23 | 贵州雏阳生态环保科技有限公司 | Wetland construction method for deeply purifying sewage by using macrophyte |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201581029U (en) * | 2009-09-27 | 2010-09-15 | 中国农业大学 | Rural sewage treatment plant for northern household |
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2011
- 2011-10-31 CN CN2011103358185A patent/CN102503021A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201581029U (en) * | 2009-09-27 | 2010-09-15 | 中国农业大学 | Rural sewage treatment plant for northern household |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103663783A (en) * | 2013-11-29 | 2014-03-26 | 湖州金能达印染有限公司 | Sewage decolorization device |
| CN103693744A (en) * | 2013-12-21 | 2014-04-02 | 浙江大学 | Method for purifying eutrophic water by employing willow partial flooding method and application thereof |
| CN103693744B (en) * | 2013-12-21 | 2015-08-26 | 浙江大学 | The method of willow part waterflooding method purification eutrophic water body and application |
| CN113149333A (en) * | 2021-03-12 | 2021-07-23 | 贵州雏阳生态环保科技有限公司 | Wetland construction method for deeply purifying sewage by using macrophyte |
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Application publication date: 20120620 |