CN103332834A - Manual ecological sewage treatment system suitable for villages and towns - Google Patents

Manual ecological sewage treatment system suitable for villages and towns Download PDF

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Publication number
CN103332834A
CN103332834A CN2013103108051A CN201310310805A CN103332834A CN 103332834 A CN103332834 A CN 103332834A CN 2013103108051 A CN2013103108051 A CN 2013103108051A CN 201310310805 A CN201310310805 A CN 201310310805A CN 103332834 A CN103332834 A CN 103332834A
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filtering layer
pipe
water
applicable
sewage treatment
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CN2013103108051A
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CN103332834B (en
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莫德清
肖晓笛
段钧元
张倩
李林
李天煜
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Guilin University of Electronic Technology
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Guilin University of Electronic Technology
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Abstract

The invention discloses a manual ecological sewage treatment system suitable for villages and towns, which comprises a sewage treating pool and is characterized in that a sludge pipe is arranged at the bottom of the sewage treating pool; a water-distributing pipe is arranged above the sludge pipe; the water-distributing pipe is connected with a water inlet pipe of the sewage treating pool; a first filtering layer, a second filtering layer and a third filtering layer are successively arranged between the water-distributing pipe and the top of the sewage treating pool from bottom to top; an aerator pipe is arranged in the second filtering layer; the other end of the aerator pipe extends out of the sewage treating pool and is connected with a fan; a draining tank is arranged around a peripheral wall of the sewage treating pool; the draining tank is communicated with the water inlet pipe of the sewage treating pool through a return pipe; and a drain pipe is arranged on the draining tank. Compared with a present ecological system, the manual ecological sewage treatment system has the advantages that the matrix is not tedded and back washed. Besides, the return pipe is added, so that the water entering into the system is diluted and the harm brought by the impact load is relieved.

Description

A kind of artificial ecology Sewage treatment systems that is applicable to the small towns
Technical field
The present invention relates to Sewage treatment systems, be specifically related to a kind of artificial ecology Sewage treatment systems that is applicable to the small towns.
Background technology
Water resources problems has become one of important factor of restriction China Economic development.Although China has taked strict cultivated land protection measure, a large amount of farmlands and agricultural irrigation water source are taken by city and industry, and the impetus that cultivated land resource reduces is difficult to reverse, and the pressure of shortage of water resources further increases.The Infrastructure of China small towns municipal administration at present falls behind, starting point is lower, lack of capital, cause with villages and small towns be fundamental unit the rural area in flakes renovation carry out and hindered, consider the present situation of small towns sewage, adopting management ecological type sewage processing mode simple, that scale of investment is little, incorporating property of view is high still is one preferred technique, is mainly the integrated application of oxidation ditch process, artificial swamp technology, manpower rapid-infiltration technology and other biological method.Wherein utilizing the manpower rapid-infiltration method of the alternative original soil layer processing pollutent of artificial swamp, filler of soil and plant treatment pollutent is two kinds the most commonly used in the small towns sewage disposal mode, but this dual mode has the following disadvantages:
1, ecological method such as artificial swamp and the manpower rapid-infiltration overwhelming majority of disposing of sewage is to be undertaken by the form of alternation of wetting and drying, and namely sewage need be through flooding---the cycle of doing that falls handles.This just means and can not move continuously, must set up two groups of parallel arrangement, has so just increased the floor space of device.
2, manpower rapid-infiltration and artificial swamp all by matrix hold back, filter, absorption and biological degradation finish jointly, and adopts the alternation of wetting and drying mode to move, and utilizes natural reaeration when falling to doing, so must regularly turn over to matrix.Thereby strengthened managerial personnel's labour intensity.
3, the removal effect of ammonia nitrogen TN and total phosphorus is stable inadequately.
Summary of the invention
The technical problem to be solved in the present invention provides that a kind of floor space is less, hydraulic load is higher, can strengthen the artificial ecology Sewage treatment systems that is applicable to the small towns of nitrogen phosphorus removal effect and stable effluent quality.
The artificial ecology Sewage treatment systems that is applicable to the small towns of the present invention, bottom at treatment tank is provided with shore pipe, the top of described shore pipe is provided with water distributor, this water distributor is connected with the water inlet pipe for the treatment of tank, between the top of water distributor and treatment tank, be provided with first filtering layer, second filtering layer and the 3rd filtering layer from the bottom to top successively, be provided with aeration tube in second filtering layer, the other end of this aeration tube stretches out treatment tank and is connected with blower fan; Periphery wall around treatment tank is provided with a blowoff basin, is communicated with by return line between the water inlet pipe of this blowoff basin and treatment tank, also is provided with water shoot on blowoff basin.
More steady for the water outlet that keeps the treatment tank top, preferably set out mill weir at the top for the treatment of tank.
In the technique scheme:
The water that enters water distributor should be to handle and the equalizing tank homogeneous was all measured after (namely pool inner water matter is fully mixed, and make the water outlet water yield even) through grid.
Described aeration tube preferably is arranged on the middle and lower part of second filtering layer.
Described shore pipe is perforated pipe, adopt and be responsible for both sides take-off line spoil disposal, can select static pressure spoil disposal or sludge pump sludge discharge way according to the height for the treatment of tank, when selecting the sludge pump sludge discharge way for use, need be at the outer setting sludge pump for the treatment of tank, and sludge pump is communicated with shore pipe; Described water distributor is perforated pipe, adopts and is responsible for the equal water distribution of both sides branch-line pipe, and each branch-line pipe and the person in charge's distribution preferably is " rich " font.
The filtration medium of described first filtering layer is quartz sand, or quartz sand and be selected from one or more combination in steel sand, the zeolite.The effect of removing pollutent when adopting quartz sand with one or more the combination that is selected from steel sand, the zeolite is better, and at this moment, the proportioning between them can be any proportioning.Most preferably, be the combination of adopting quartz sand, steel sand and zeolite, their volume ratio is 2~4: 0.5~1.5: 0.5~1.5.The particle diameter of quartz sand described above is 2~6mm, and the particle diameter of steel sand is 2~4mm, and the particle diameter of zeolite is 1~3mm.
The filtration medium of described second filtering layer is ceramic grain filter, and its particle diameter is generally 5~8mm.
The filtration medium of described the 3rd filtering layer is common river sand, and its particle diameter is generally 1~2mm.
The artificial ecology Sewage treatment systems that is applicable to the small towns of the present invention, the water speed that goes out of the pore on the water distributor tube wall should be greater than the settling velocity of mud in the treatment tank.Generally, the height of first filtering layer for the treatment of tank inside, second filtering layer and the 3rd filtering layer is 1.0~2.0m, 1.5~2.5m and 1.0~2.0m respectively, and the gas-water ratio of aeration is 5~7: 1.
Compared with prior art, the characteristics of system of the present invention are:
1, system of the present invention need not to make system can carry out the continuous processing of sewage by the dried reoxygenation that carries out that falls, and has increased sewage load; And do not need manually to ted matrix, need not to carry out back flushing, reduced work load; In addition, system need not to increase second pond.
2, aeration tube is installed in the filtering layer, only a part of filtrate is wherein carried out aeration, can form anaerobic zone (first filtering layer) in filtering layer inside like this---aerobic zone (second filtering layer) two big zones, simultaneously at aerobic zone, owing to the filler biofilm makes microbial film inside (with the filling surface contact area) formation anaerobic environment and possesses denitrifying function simultaneously.
2, owing to add the artificial aeration system, make total system handle load and increase, handling the load value can be with reference to BAF.
3, by in the treatment tank bottom perforated sludge discharge pipe road being installed, the latch up phenomenon of having avoided legacy system to occur can be selected static pressure spoil disposal or sludge pump spoil disposal according to the system design absolute altitude.
4, make up the external reflux system by return line is set in the water side, further improve pollutants removal rate, it is up to standard to be conducive to water outlet.
Description of drawings
Fig. 1 is the structural representation that is applicable to a kind of embodiment of artificial ecology Sewage treatment systems in small towns of the present invention.
Number in the figure is:
1 treatment tank; 2 blowoff basins; 3 water inlet pipes; 4 intake pumps; 5 aeration tubes; 6 blower fans; 7 water shoots; 8 return lines; 9 shore pipes; 10 sludge pumps; 11 first filtering layers; 12 second filtering layers; 13 the 3rd filtering layers; 14 effluent weirs; 15 water distributors.
Embodiment
As shown in Figure 1, the artificial ecology Sewage treatment systems that is applicable to the small towns of the present invention comprises a square treatment tank 1, and the top for the treatment of tank 1 sets out mill weir 14; Be provided with shore pipe 9 in the bottom for the treatment of tank 1, the described shore pipe 9 that is positioned at treatment tank 1 is selected perforated pipe for use, the shore pipe 9 that is positioned at treatment tank 1 outside can select not have on the tube wall pipeline such as the pvc pipe material of perforate, and the path of this section of tubing is provided with sludge pump 10; Above the middle and lower part for the treatment of tank 1, shore pipe 9, be provided with water distributor 15, described water distributor 15 is perforated pipe, adopt and be responsible for the equal water distribution of both sides branch-line pipe, each branch-line pipe and the person in charge's distribution preferably is " rich " font, described water distributor 15 is communicated with the water inlet pipe 3 for the treatment of tank 1 outside, the described water that enters water inlet pipe 3 is for handling through grid and the equalizing tank homogeneous is all measured processing, is provided with intake pump 4 at the pipeline path of water inlet pipe 3; Between the top of water distributor 15 and treatment tank 1, be provided with first filtering layer 11, second filtering layer 12 and the 3rd filtering layer 13 from the bottom to top successively, the filtration medium of described first filtering layer 11 be quartz sand (particle diameter is 2~6mm), steel sand (particle diameter be 2~4mm) and zeolite (particle diameter is 1~3mm) combination, and their volume ratio is 3: 1: 1; The filtration medium of described second filtering layer 12 is that particle diameter is the ceramic grain filter of 5~8mm; The filtration medium of described the 3rd filtering layer 13 is that particle diameter is the common river sand of 1~2mm; In second filtering layer 12, the bottom is provided with aeration tube 5, the other end of this aeration tube 5 stretches out treatment tank 1 and joins with aeration blower 6, aeration blower 6 is delivered to air in second filtering layer 12 by aeration tube 5; The artificial ecology Sewage treatment systems in small towns that is applicable to of the present invention comprises that also one is used for accepting the blowoff basin 2 of the water of discharging from treatment tank 1 top, this blowoff basin 2 arranges (be treatment tank 1 have body of wall of a common body of wall or treatment tank 1 with blowoff basin 2 and a body of wall of blowoff basin 2 pastes mutually) around the periphery wall for the treatment of tank 1, and its bottom should be positioned at the top of aeration tube 5, be communicated with by return line 8 between the water distributor 15 of described blowoff basin 2 and treatment tank 1, on blowoff basin 2, also be provided with water shoot 7, by water shoot 7 water outlet drained into receiving water body.
The treatment process of the artificial ecology Sewage treatment systems in small towns that is applicable to of the present invention is:
Remove most SS (Suspended Solid by grid, suspended substance in the sewage), sewage after all measuring through the equalizing tank homogeneous is again sent into treatment tank 1 by intake pump 4, sewage flows out uniformly by the water distributor 15 for the treatment of tank 1 bottom, and utilize current to wash away mud under water distributor 15 planes in the speed at water distributing pore place, avoid water distributing pore blocked.In the current uphill process, sewage is successively through first filtering layer 11, second filtering layer 12 and the 3rd filtering layer 13.Because aeration tube 5 is arranged on first filtering layer, 11 tops, the bottom of second filtering layer 12, so be equivalent to the anaerobic treatment district at first filtering layer 11 (being the quartz sand filtering layer), be equivalent to the aerobic treatment district at second filtering layer 12 (being the haydite filtering layer), when after sewage is by the quartz sand filtering layer, covering the haydite filtering layer again, the microorganism that adheres on the ceramic grain filter carries out aerobic reaction, the remaining pollutent of oxygenolysis at this layer.When three filtering layer 13 (be river sand filtering layer) of sewage by the superiors, the SS in the sewage can be removed the overwhelming majority by the filteration of this layer, and river sand remaining COD in the adsorbable sewage also further purifies water simultaneously.Treated water finally flow into blowoff basin 2 by the effluent weir 14 on the Chi Ding, and the water part in this blowoff basin 2 reenters system by return line 8, and a part is by the water shoot 7 outer receiving water bodies that drain into.She Ji purpose is like this, and the concentration of pollutent avoids impact load that system is caused disadvantageous effect in the dilution water inlet; Simultaneously also can guarantee water quality reaching standard by through anaerobic zone the nitric nitrogen in the water outlet and nitrite nitrogen and phosphorus being removed again.In system of the present invention, organism is trapped in the system by the microbe filter adsorption on filtrate and surface thereof, and particularly obtains final removal in the Degradation of aerobic zone microorganism by microbial process.Ammonia nitrogen then has two kinds of removal approach, at first be medium to the adsorption of ammonia nitrogen, secondly be the nitrification of ammonia nitrogen.The removal of phosphorus is by three kinds of modes, the absorption of i.e. absorption, chemical precipitation and microorganism, wherein microbial process is limited to the contribution of dephosphorization, the absorption of matrix and precipitating action are to remove the main path of phosphorus, and described chemical precipitation dephosphorization mainly is to form precipitation by calcium, magnesium, molysite and orthophosphoric acid salt reaction.
With the sewage disposal of system applies of the present invention in certain small towns of periphery, Guilin City, the size of the treatment tank 1 of specific design is 6.0m * 6.0m * 6.0m (length * wide * height), and the height of first filtering layer 11 for the treatment of tank 1 inside, second filtering layer 12 and the 3rd filtering layer 13 is 1.5m, 2.0m and 1.5m respectively; At hydraulic load 2.8m 3/ m 2D, aeration rate 0.42m 3/ min, under the situation of HRT (hydraulic detention time) 16h, each parameter of water inlet is: Q:100m 3/ d; CODcr:520mg/L; NH 3-N:30mg/L; TP:5mg/L; TN:42mg/L; SS:220mg/L; The parameter of effluent quality: CODcr:42mg/L; NH 3-N:3mg/L; TP:0.4mg/L; TN:7mg/L; SS:6mg/L, working time: 6 months; Clearance is respectively: CODcr:92%; NH 3-N:90%; TP:92%; TN:83.3%; SS:97%.
The content that above-described embodiment is illustrated should be understood to these embodiment and only is used for being illustrated more clearly in the present invention, limit the scope of the invention and be not used in, after having read the present invention, those skilled in the art all should belong to the application's claims institute restricted portion to the modification of the various equivalent form of values of the present invention.

Claims (10)

1. artificial ecology Sewage treatment systems that is applicable to the small towns, comprise treatment tank (1), it is characterized in that: be provided with shore pipe (9) in the bottom for the treatment of tank (1), the top of described shore pipe (9) is provided with water distributor (15), this water distributor (15) is connected with the water inlet pipe (3) for the treatment of tank (1), between the top of water distributor (15) and treatment tank (1), be provided with first filtering layer (11) from the bottom to top successively, second filtering layer (12) and the 3rd filtering layer (13), be provided with aeration tube (5) in second filtering layer (12), the other end of this aeration tube (5) stretches out treatment tank (1) and is connected with blower fan (6); Periphery wall around treatment tank (1) is provided with a blowoff basin (2), is communicated with by return line (8) between the water inlet pipe (3) of this blowoff basin (2) and treatment tank (1), also is provided with water shoot (7) on blowoff basin (2).
2. the artificial ecology Sewage treatment systems that is applicable to the small towns according to claim 1 is characterized in that: be provided with effluent weir (14) at the top for the treatment of tank (1).
3. the artificial ecology Sewage treatment systems that is applicable to the small towns according to claim 1 and 2, it is characterized in that: described aeration tube (5) is arranged at the middle and lower part of second filtering layer (12).
4. the artificial ecology Sewage treatment systems that is applicable to the small towns according to claim 1 and 2, it is characterized in that: described shore pipe (9) is perforated pipe; Described water distributor (15) is perforated pipe, adopts and is responsible for the equal water distribution of both sides branch-line pipe.
5. the artificial ecology Sewage treatment systems that is applicable to the small towns according to claim 1 and 2, it is characterized in that: the filtration medium of described first filtering layer (11) is quartz sand, or quartz sand and be selected from steel sand and zeolite in one or more combination.
6. the artificial ecology Sewage treatment systems that is applicable to the small towns according to claim 5, it is characterized in that: the particle diameter of described quartz sand is 2~6mm, and the particle diameter of steel sand is 2~4mm, and the particle diameter of zeolite is 1~3mm.
7. the artificial ecology Sewage treatment systems that is applicable to the small towns according to claim 1 and 2, it is characterized in that: the filtration medium of described second filtering layer (12) is ceramic grain filter.
8. the artificial ecology Sewage treatment systems that is applicable to the small towns according to claim 7, it is characterized in that: the particle diameter of described ceramic grain filter is 5~8mm.
9. the artificial ecology Sewage treatment systems that is applicable to the small towns according to claim 1 and 2, it is characterized in that: the filtration medium of described the 3rd filtering layer (13) is common river sand.
10. the artificial ecology Sewage treatment systems that is applicable to the small towns according to claim 9, it is characterized in that: the particle diameter of described common river sand is 1~2mm.
CN201310310805.1A 2013-07-23 2013-07-23 Manual ecological sewage treatment system suitable for villages and towns Active CN103332834B (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105084664A (en) * 2015-08-14 2015-11-25 无锡乐华自动化科技有限公司 Sewage treatment method adopting industrial sewage treatment system
CN106007227A (en) * 2016-07-15 2016-10-12 广州粤江环保科技有限公司 Sewage treatment method
CN107032538A (en) * 2016-11-14 2017-08-11 武汉兴天宇环境股份有限公司 It is a kind of to monitor the sewage treating and recovering device of water quality
CN108892310A (en) * 2018-06-28 2018-11-27 贵州大学 A kind of aeration treatment apparatus that sewage is used for agricultural irrigation

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201317707Y (en) * 2008-11-11 2009-09-30 大连恒基新润水务有限公司 Aeration biological filtering pool with three layers of filtering
CN103159317A (en) * 2011-12-12 2013-06-19 同济大学 Artificial-aeration-reinforced Land percolation water treatment device

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201317707Y (en) * 2008-11-11 2009-09-30 大连恒基新润水务有限公司 Aeration biological filtering pool with three layers of filtering
CN103159317A (en) * 2011-12-12 2013-06-19 同济大学 Artificial-aeration-reinforced Land percolation water treatment device

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105084664A (en) * 2015-08-14 2015-11-25 无锡乐华自动化科技有限公司 Sewage treatment method adopting industrial sewage treatment system
CN106007227A (en) * 2016-07-15 2016-10-12 广州粤江环保科技有限公司 Sewage treatment method
CN107032538A (en) * 2016-11-14 2017-08-11 武汉兴天宇环境股份有限公司 It is a kind of to monitor the sewage treating and recovering device of water quality
CN108892310A (en) * 2018-06-28 2018-11-27 贵州大学 A kind of aeration treatment apparatus that sewage is used for agricultural irrigation

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