CN102701447B - Multifunctional pilot-scale test system for sewage treatment and application of system - Google Patents
Multifunctional pilot-scale test system for sewage treatment and application of system Download PDFInfo
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- CN102701447B CN102701447B CN201210140616.XA CN201210140616A CN102701447B CN 102701447 B CN102701447 B CN 102701447B CN 201210140616 A CN201210140616 A CN 201210140616A CN 102701447 B CN102701447 B CN 102701447B
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Abstract
The invention discloses a multifunctional pilot-scale test system for sewage treatment. The system consists of a first reaction tank, a second reaction tank, a third reaction tank and a fourth reaction tank which are arrayed in a line, wherein a stirring device is arranged in the first reaction tank and is used for mixing water flowing in the first reaction tank and backflow sludge or mixed liquid; the second reaction tank, the third reaction tank and the fourth reaction tank are respectively taken as an aerobic pond or a precipitation tank; stirring devices are respectively arranged in the three reaction tanks and are respectively used for mixing inflowing water and sewage in the tanks; and a triangular weir water outlet groove or a decanter for discharging water is arranged in each reaction tank, and an aeration system and/or a perforating dredging tube or a mud scraper is/are arranged in each reaction tank. The invention also discloses application of the multifunctional pilot-scale test system. The multifunctional pilot-scale test system can be used for simulating three series of processes, namely anaerobic-anoxic-oxic (AAO), sequencing batch reactor (SBR) and integral activate sludge process (UNITANK) and has a function of adjusting parameters on water quality of raw water, treatment scales, high resolution timer (HRT) proportions, sludge reflux quantity, mixed liquid reflux quantity and the like, thus meeting the various requirements on applied research and development for the sewage treatment.
Description
Technical field
The invention belongs to water-treatment technology field, relate to a kind of for simulating sewage disposal pilot test system and the application thereof of multiple water treatment technique.
Background technology
In recent years, along with the raising of the attention to environmental protection cause and people's environmental consciousness, environmental requirement, the research of urban sewage treatment technology is deepened continuously and extensively, emerged large quantities of sewage disposal research and development, production, operation enterprise.Therefore, the research of the lab scale in laboratory can not meet the needs of actual scientific research, domesticly starts to set up pilot plant simulated sewage treatment process.
Nanjing Kesheng Environmental Protection Technology Co., Ltd provides a kind of Multifunctional pilot system for sewage processing for scientific research, displaying and teaching purposes (application number: 200920047313.7), this system can be processed the sewage of multiple-quality water situation under multiple environment.But this device biochemical treatment unit is too simple, can only simulate AO technique; And this device is more laid particular stress on teaching and is shown, does not consider to optimize the function of actual sewage production run.
Sewage disposal pilot plant few in number all can only be simulated single biochemical processing process at present, and application function is limited; And most of pilot plant is mainly used in determining the design variable of newly-built Sewage Plant, do not consider to optimize the function of Sewage Plant production run, therefore control measures and amplitude are all more limited.
Summary of the invention
One of object of the present invention is intended to propose one can simulate multiple water treatment technique, and the sewage disposal pilot test system of scientific research support can be provided for the optimization of Sewage Plant production run.
For achieving the above object, sewage disposal pilot test system of the present invention comprises reaction tank body, and it is made up of the first reaction tank, the second reaction tank, the 3rd reaction tank and the 4th reaction tank that are word order, and each reaction tank is communicated with sewer line, sludge pipe and air line respectively, wherein
Described the first reaction tank is detested anoxic pond for simulation, is provided with agitator in it, for realizing mixing of this first reaction tank water inlet and returned sluge or mixed solution;
Described the second reaction tank, the 3rd reaction tank and the 4th reaction tank are respectively used to as Aerobic Pond or settling tank, in three reaction tanks, are separately installed with agitator, are respectively used to mix sewage in water inlet and pond; And in three each ponds of reaction tank, be also provided with V-notch weir effluent trough or strain hydrophone for water outlet, in each pond, be provided with simultaneously aerating system for aeration and/or be provided with perforation suction pipe or mud scraper for spoil disposal.
As improvement of the present invention, described the first reaction tank adopts the water outlet of drop funnel, and regulates described the first reaction tank available depth and volume by changing the height of this drop funnel.
As improvement of the present invention, adjacent two reaction tanks in described the first reaction tank, the second reaction tank, the 3rd reaction tank and the 4th reaction tank share pool wall.
As improvement of the present invention, the aerated conduit of described aerating system is " rich " font and lays.
As improvement of the present invention, described perforation suction pipe adopts pvc pipe, and tube wall perforate, at the bottom of being evenly laid in pond, for being deposited on that active sludge at the bottom of pond is collected and by it discharge or backflow.
As improvement of the present invention, described water technology comprises AAO series of processes, SBR series of processes and UNITANK series of processes.
Two of object of the present invention is a kind of openly method of applying above-mentioned Multifunctional pilot system for sewage processing and carrying out the simulation of AAO series of processes, and it specifically comprises the steps:
First, intake by the first reaction tank, realize water inlet by agitator wherein and mix with returned sluge or mixed solution, and keep mud in pond to keep suspending, again from drop funnel water outlet wherein, make sewage enter described the second reaction tank and the 3rd reaction tank to carry out aerobic treatment; After this second reaction tank and the water inlet of the 3rd reaction tank, mix water inlet and described sewage by agitator separately, and utilize described aerating system to carry out aeration; Carry out the sewage after aerobic treatment through this second reaction tank and the 3rd reaction tank, enter the 4th reaction tank and carry out precipitation process, by mud scraper wherein, make mixed solution mud-water separation, and supernatant liquor is discharged from V-notch weir effluent trough wherein.
Three of object of the present invention is a kind of openly method of applying above-mentioned Multifunctional pilot system for sewage processing and carrying out the simulation of UNITANK series of processes, and it specifically comprises the steps:
(1) sewage enters the second reaction tank, adopts agitator or aerating system to carry out aeration, and in pond, mixed solution enters the 4th reaction tank after the 3rd reaction tank, and in the 4th reaction tank by described V-notch weir draining;
(2) second reaction tanks stop into water, continue aeration, and sewage enters the 3rd reaction tank, and the 4th reaction tank continues draining;
(3) second reaction tanks stop aeration, and quiet heavy, sewage continues to enter the 3rd reaction tank, and the 4th reaction tank continues draining, and excess sludge is discharged by perforation suction pipe wherein;
(4) sewage enters the 4th reaction tank, adopts agitator or aerating system to carry out aeration, and mixed solution enters the second reaction tank through the 3rd reaction tank, and passes through V-notch weir draining at this second reaction tank;
(5) the 4th reaction tanks stop into water, continue aeration, and sewage enters the 3rd reaction tank, and this second reaction tank continues draining;
(6) the 4th reaction tanks stop aeration, and quiet heavy, sewage continues to enter the 3rd reaction tank, and this second reaction tank continues draining, and excess sludge is discharged by perforation suction pipe wherein, until draining is complete;
Circular flow above-mentioned steps (1)-(6), can realize the simulation to UNTANK series of processes.
Four of object of the present invention is a kind of openly method of applying above-mentioned Multifunctional pilot system for sewage processing and carrying out the simulation of SBR series of processes, it specifically comprises: first, described the second reaction tank, the 3rd reaction tank and the 4th each pond of reaction tank independently intake, then each reaction tank carries out aerated reaction by aerating system and agitator separately, again through precipitate idle after, sewage is strained hydrophone water outlet by each reaction tank respectively.
Reaction tank body in the present invention is made up of 4 reaction tanks, is yi word pattern and arranges, and adjacent reaction pond shares pool wall, and wherein the first reaction tank is than other pond height 1.0m.Reaction tank body material adopts A3 steel plate, thick 8mm; Interior anticorrosion employing epoxy coal glass reinforced plastic (four oily two cloth), the two-layer red lead paint one deck of outer anticorrosion employing finish paint.Reaction tank body the first reaction tank is mainly simulated and is detested anoxic pond, and second and third and four reaction tanks are mainly simulated Aerobic Pond and settling tank, is the main product institute that realizes saprobia absorption degradation organic pollutant, denitrogenation dephosphorizing.
Tubing system in the present invention: formed by the equipment such as gate valve, pump and sewage, mud, air line.Mainly realize the switching of each simulation process by the adjusting (keying of gate valve, the keying of pump etc.) of tubing system; And can adjust simulation process operating parameter by the adjusting of tubing system (opening of device degree size adjustment etc.), thereby realize the optimization of operating parameters research of technique, for providing scientific research, the optimization of actual sewage factory production run supports.
The agitator of the first reaction tank in the present invention preferably adopts two-layer equation boats and ships type pusher propeller, makes into water and returned sluge or mixed solution short mix, and keeps mud in pond to keep suspending, and avoid excessively reoxygenation of surface; Other three ponds preferably adopt grid agitator, make the interior sewage short mix into Shui Hechi, guarantee that active sludge fully contacts with organic pollutant, reinforcing mass transfer effect, and keep mud in pond to keep suspending, and avoid excessively reoxygenation of surface.
In the present invention, adopt respectively mud scraper and perforation suction pipe as mud discharging system, to meet the requirement of the mud discharging under various simulation process conditions, avoid sludge retention time long.Wherein mud scraper preferably shares stir shaft and support thereof with whipping appts, in the time that the present invention simulates AAO series of processes, the 4th reaction tank is as settling tank, aerating system, suction pipe and the agitating vane of the 4th reaction tank are not worked, but installation cleaning shoe, by being deposited on sludge scraping at the bottom of pond to sludge hopper, ensure concentration and the activity of returned sluge and excess sludge, and avoid precipitating sludge alluvial overlong time and denitrification and mud floating occur.Perforation suction pipe preferably adopts feedwater pvc pipe, and tube wall perforate, at the bottom of being evenly laid in pond, will be deposited on that active sludge at the bottom of pond is collected and by it discharge or backflow.
In the present invention, second and third lays aerating system with four reaction tanks, and aerated conduit is preferably laid by " rich " word, in mixed solution, provides oxygen, guarantees that active sludge keeps suspension, and fully contacts with dissolved oxygen with organic pollutant.
In the present invention, adopt and strain hydrophone and V-notch weir water outlet respectively, to ensure that under various simulation process conditions, supernatant liquor is normally discharged pond body.Wherein, strain hydrophone in the time simulating SBR series of processes, using valve switch as control device, in setting-up time, automatically supernatant liquor in pond is discharged to reaction tank.V-notch weir, in the time simulating AAO series of processes and UNITANK series of processes, is discharged pond body by settling tank supernatant liquor, and avoids precipitation state in pond to form and disturb as far as possible.
The present invention can regulate by equipment, valve switches and the means such as pipeline connection, realizes the simulation to AAO, SBR, UNITANK tri-large series of processes, specifically comprises AAO, A
po, A
no, inversion A AO, UNITANK, detest techniques such as supporting UNITANK, SBR, CAST, and possess raw water quality, treatment scale, HRT ratio, sludge reflux amount and the isoparametric regulatory function of mixed-liquor return amount, meet the requirement of various sewage disposal action oriented research exploitations.
Brief description of the drawings
Fig. 1 is technological principle sketch of the present invention;
Fig. 2 is that reaction tank body plane of the present invention is arranged sketch;
Fig. 3 is sludge system floor plan sketch of the present invention;
Fig. 4 is aerating system floor plan sketch of the present invention.
Embodiment
Below in conjunction with drawings and the specific embodiments, the present invention is described further.
As shown in Fig. 1 ~ 4, the present invention is mainly made up of reaction tank body, tubing system, outlet system, aerating system and sludge system.Reaction tank body is made up of reaction tank A, B, C and D, is yi word pattern and arranges, and adjacent reaction pond shares pool wall, and B, C, D pond is adjacent connects by pipeline.A pond is mainly simulated and is detested anoxic pond, A pond adopts 7 water outlets of drop funnel, to cut off the waterpower relation in A pond and downstream reaction pond, and can regulate A pond available depth and volume by the drop height of funnel 7 of change, thus the hydraulic detention time ratio in adjusting A pond and downstream reaction pond.
And the switching of each simulation process is mainly adjusting (keying of gate valve, the keying of the pump etc.) realization by sewer system 1, sludge pipe system 2 and air, ducted systems 3 in the present embodiment.Meanwhile, the present invention realizes the water inlet of A pond and returned sluge or mixed solution short mix by agitator 4,5,6, and keeps mud in pond to keep suspending, and avoids excessively reoxygenation of surface; Sewage in agitator 13,14,15 short mix B, C, the water inlet of D pond and pond is installed respectively, and is kept mud in each pond to keep suspending.B, C, D pond, can be respectively as Aerobic Pond and settling tanks according to the requirement of physical simulation technique, and when aeration, each pond adopts respectively micro-pore aeration system 20,21,22 aerations; During as settling tank, each pond can select to bore a hole suction pipe 16,17,18 or mud scraper 19 when spoil disposal, when water outlet, each pond can be selected V-notch weir effluent trough 8,9 or strain hydrophone 10,11,12.
Each reaction tank is communicated with sewer line, sludge pipe and air line respectively, by the adjusting control that each pipeline is opened and closed, can realize the simulation to various water technologies.
In the present embodiment, the situation of the various treatment process of physical simulation is as follows:
(1) AAO series of processes
While simulating AAO series of processes in the present embodiment, A pond is for detesting anoxic pond, and B, C pond are Aerobic Pond, and D pond is settling tank.This technique is intake by A pond, realizes water inlet and returned sluge or mixed solution short mix by agitator 4,5,6, and keeps mud in pond to keep suspending, and avoids excessively reoxygenation of surface, then from 7 water outlets of drop funnel, enters Aerobic Pond; After B, the water inlet of C pond, by sewage in agitator 13,14 short mix water inlets and pond, and keep mud in pond to keep suspending, B, C pond perforation suction pipe 16,17 are not worked, two pond aerations adopt micro-pore aeration system 20,21, guarantee oxygen abundance in mixed solution, and sewage is after B, C pond aerobic treatment, connecting pipe water outlet through between each pond, enters settling tank D; Remove D pond agitator 15, perforation suction pipe 18, aerating system 22, mud scraper 19 is installed, make mixed solution mud-water separation, final supernatant liquor is discharged from V-notch weir effluent trough 9.
(2) UNTANK series of processes
While simulating UNTANK series of processes in the present embodiment, adopt B, C, D pond dry run UNITANK series of processes (when simulation part SBR deformation technique, A pond can be used as anaerobic pond), adjacent pool is passed through pipeline communication, and is provided with water dispensing apparatus.B, C, D pond are separately installed with agitator 13,15 and micro-pore aeration system 20,21,22; Perforation suction pipe 16,18 is installed in pond, two limits (B pond, D pond), and they are alternately as aeration tank and settling tank.Can control sewage by valve in sewer system 1 and enter arbitrary reaction tank, system adopts water inlet, cycle alternate run mode continuously.The concrete cycle of operation comprises 6 stages:
1) sewage enters pond, limit B, adopts agitator 13 or micro-pore aeration system 20 to carry out aeration in pond, and in pond, mixed solution enters pond, limit D through intermediate pool C, and D pond is by V-notch weir 9 drainings;
2) B pond stops into water, continues aeration, and sewage enters C pond, and draining is continued in D pond;
3) B pond stops aeration, and quiet heavy, sewage continues to enter C pond, and draining is continued in D pond, and excess sludge is discharged by perforation suction pipe 18;
4) sewage enters pond, limit D, adopts agitator 15 or micro-pore aeration system 22 to carry out aeration in pond, and mixed solution enters B pond through intermediate pool C, and B pond is by V-notch weir draining;
5) D pond stops into water, continues aeration, and sewage enters C pond, and draining is continued in B pond;
6) D pond stops aeration, and quiet heavy, sewage continues to enter C pond, and draining is continued in B pond, and excess sludge is discharged by perforation suction pipe 16, until draining is complete, completes a cycle of operation.In the whole cycle, intermediate pool B adopts micro-pore aeration system 21 to carry out aeration all the time.(1)～(3) stage is just in time contrary with (4)～(6) stage running mode.
(3) SBR series of processes
When the present invention simulates SBR series of processes, mainly adopt B, C, D pond dry run SBR technique (when simulation part SBR deformation technique, A pond can be used as anaerobic pond), 3 pond independent operatings, are equipped with water dispensing apparatus and water-freeing arrangement.Agitator 13,14,15 is installed respectively in B, C, D pond, micro-pore aeration system 20,21,22, perforation suction pipe 16,17,18 and strain hydrophone 10,11,12.Can control sewage by valve in sewer system 1 and enter arbitrary reaction tank, system adopts water inlet, cycle alternate run mode continuously; Each reaction tank opens and closes water inlet, reaction, precipitation, discharge and idle 5 operations that can realize on time and space by agitator, aerating system and outlet system, realize sewage disposal; Finally, process after sewage strain hydrophone water outlet by each reaction tank respectively.
Claims (6)
1. a Multifunctional pilot system for sewage processing, be used for simulating AAO series, SBR series and UNITANK Series of Water treatment process, it is characterized in that, this system comprises reaction tank body, it is made up of the first reaction tank (A), the second reaction tank (B), the 3rd reaction tank (C) and the 4th reaction tank (D) that are word order, and adjacent two reaction tanks wherein share pool wall, and each reaction tank is communicated with sewer line, sludge pipe and air line respectively, wherein
Described the first reaction tank (A) is detested anoxic pond for simulation, in it, be provided with agitator (4,5,6), be used for realizing mixing of this first reaction tank (A) water inlet and returned sluge or mixed solution, this first reaction tank (A) adopts the water outlet of drop funnel (7), and regulates described the first reaction tank (A) available depth and volume by the height that changes this drop funnel (7);
Described the second reaction tank (B), the 3rd reaction tank (C) and the 4th reaction tank (D) are respectively used to as Aerobic Pond or settling tank, are separately installed with grid agitator (13,14,15) in three reaction tanks, are respectively used to mix sewage in water inlet and pond; And in three each ponds of reaction tank, be also provided with V-notch weir effluent trough (8,9) or strain hydrophone (10,11,12) for water outlet, in each pond, be provided with simultaneously aerating system (20,21,22) for aeration and/or be provided with perforation suction pipe (16,17,18) or mud scraper (19) for spoil disposal.
2. a kind of Multifunctional pilot system for sewage processing according to claim 1, is characterized in that, the aerated conduit of described aerating system is " rich " font and lays.
3. a kind of Multifunctional pilot system for sewage processing according to claim 1 and 2, it is characterized in that, described perforation suction pipe (16,17,18) adopts pvc pipe, and tube wall perforate, at the bottom of being evenly laid in pond, for being deposited on that active sludge at the bottom of pond is collected and by it discharge or backflow.
4. application rights requires the method that the described Multifunctional pilot system for sewage processing of one of 1-3 carries out the simulation of AAO series of processes, and it specifically comprises the steps:
First, intake by the first reaction tank (A), realizing water inlet by agitator (4,5,6) wherein mixes with returned sluge or mixed solution, and keep mud in pond to keep suspending, again from drop funnel (7) water outlet wherein, make sewage enter described the second reaction tank (B) and the 3rd reaction tank (C) to carry out aerobic treatment; After this second reaction tank (B) and the water inlet of the 3rd reaction tank (C), mix water inlet and described sewage by agitator (13,14) separately, and utilize described aerating system (20,21) to carry out aeration; Carry out the sewage after aerobic treatment through this second reaction tank (B) and the 3rd reaction tank (C), enter the 4th reaction tank (D) and carry out precipitation process, by mud scraper (19) wherein, make mixed solution mud-water separation, and supernatant liquor is discharged from V-notch weir effluent trough (9) wherein.
5. application rights requires the method that the described Multifunctional pilot system for sewage processing of one of 1-3 carries out the simulation of UNITANK series of processes, and it specifically comprises the steps:
(1) sewage enters the second reaction tank (B), adopt agitator (13) or aerating system (20) to carry out aeration, in pond, mixed solution enters the 4th reaction tank (D) after the 3rd reaction tank (C), and in the 4th reaction tank (D) by described V-notch weir (9) draining;
(2) second reaction tanks (B) stop into water, continue aeration, and sewage enters the 3rd reaction tank (C), and the 4th reaction tank (D) continues draining;
(3) second reaction tanks (B) stop aeration, and quiet heavy, sewage continues to enter the 3rd reaction tank (C), and the 4th reaction tank (D) continues draining, and excess sludge is discharged by perforation suction pipe (18) wherein;
(4) sewage enters the 4th reaction tank (D), adopts agitator (15) or aerating system (22) to carry out aeration, and mixed solution enters the second reaction tank (B) through the 3rd reaction tank (C), and passes through V-notch weir draining at this second reaction tank (B);
(5) the 4th reaction tanks (D) stop into water, continue aeration, and sewage enters the 3rd reaction tank (C), and this second reaction tank (B) continues draining;
(6) the 4th reaction tanks (D) stop aeration, and quiet heavy, sewage continues to enter the 3rd reaction tank (C), and this second reaction tank (B) continues draining, and excess sludge is discharged by perforation suction pipe (16) wherein, until draining is complete;
Circular flow above-mentioned steps (1)-(6), can realize the simulation to UNTANK series of processes.
6. application rights requires the method that the described Multifunctional pilot system for sewage processing of one of 1-3 carries out the simulation of SBR series of processes, it specifically comprises: first, described the second reaction tank (B), the 3rd reaction tank (C) and the 4th each pond of reaction tank (D) independently intake, then each reaction tank carries out aerated reaction by aerating system and agitator separately, again through precipitate idle after, sewage is strained hydrophone (10,11,12) water outlet by each reaction tank respectively.
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| CN201210140616.XA CN102701447B (en) | 2012-05-09 | 2012-05-09 | Multifunctional pilot-scale test system for sewage treatment and application of system |
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| CN201210140616.XA CN102701447B (en) | 2012-05-09 | 2012-05-09 | Multifunctional pilot-scale test system for sewage treatment and application of system |
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| CN105621614A (en) * | 2016-04-01 | 2016-06-01 | 中新苏州工业园区环保技术有限公司 | Multipurpose integrated biological treatment tank |
| CN106186532A (en) * | 2016-08-08 | 2016-12-07 | 浙江荣凯科技发展股份有限公司 | The process technique of sewage in a kind of synthesis 2 chlorine apellagrins |
| CN106396057B (en) * | 2016-10-28 | 2023-09-26 | 武汉工程大学 | Multifunctional integrated sewage treatment equipment |
| CN106904742A (en) * | 2017-04-01 | 2017-06-30 | 尚川（北京）水务有限公司 | It is a kind of small-sized without water decanter SBR integrated effluent disposal systems |
| CN108569762A (en) * | 2018-05-09 | 2018-09-25 | 江苏大楚环保设备有限公司 | A kind of multifunctional all domestic sewage treatment device |
| CN108862560B (en) * | 2018-07-25 | 2024-02-13 | 苏州市排水有限公司 | Multi-mode integrated sewage treatment device |
| CN108793409B (en) * | 2018-08-29 | 2023-12-29 | 中化学朗正环保科技有限公司 | Sewage treatment device suitable for rural sewage flow change |
| CN112723649A (en) * | 2020-11-19 | 2021-04-30 | 江苏农林职业技术学院 | Virtual debugging operation method for sewage treatment plant |
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| CN201437522U (en) * | 2009-07-28 | 2010-04-14 | 大连迈克环境科技工程有限公司 | Anaerobic hydrolysis and SBR coupling denitrifying dephosphatation device |
| CN101693582A (en) * | 2009-10-22 | 2010-04-14 | 同济大学 | Simple sewage treatment device of alternate aeration basin and treatment technique thereof |
| CN202610027U (en) * | 2012-05-09 | 2012-12-19 | 华中科技大学 | Multi-functional sewage treatment pilot plant test system |
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