CN103523927B - A kind of low stain Tailwater Depth treatment unit - Google Patents
A kind of low stain Tailwater Depth treatment unit Download PDFInfo
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- CN103523927B CN103523927B CN201310528568.6A CN201310528568A CN103523927B CN 103523927 B CN103523927 B CN 103523927B CN 201310528568 A CN201310528568 A CN 201310528568A CN 103523927 B CN103523927 B CN 103523927B
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Abstract
The invention provides low stain Tailwater Depth treatment unit, comprising: periphyton culture tank, described periphyton culture tank is provided with tail water import and process water out; Be arranged on the periphyton collection device on described periphyton culture tank, described periphyton collection device comprise to be arranged on described periphyton culture tank, the carriage that can slide along described periphyton culture tank and the periphyton collection bucket be connected with described carriage, described periphyton collection bucket contacts with the periphyton in periphyton culture tank; The periphyton collection box be connected with described periphyton collection bucket.Apparatus structure provided by the invention is simple, reliable, for the treatment of the recycling being convenient to periphyton during low stain tail water.
Description
Technical field
The invention belongs to tail water processing technology field, particularly relate to a kind of low stain Tailwater Depth treatment unit.
Background technology
In recent years, along with governments at all levels are to the great attention of water pollution control, water pollution control facility and level have raising by a relatively large margin.For urban wastewater treatment, end 2012, national the planned city, county add up to build up urban wastewater treatment firm 3272, and processing power reaches 1.40 billion cubic meters/day, and treatment rate of domestic sewage reaches 84.9%, and most of town sewage obtains process up to standard.But China's surface water environment situation still allows of no optimist, in state's control section of ten large watersheds and emphasis lake (reservoir), about 40% is inferior to IV class water, and in 60 states's control emphasis lake (reservoir), the above lake of Middle nutrition state accounts for 86.7%.
The fast lifting of wastewater treatment rate, but water environment situation still allows of no optimist, and there is contradiction here, infers the reason that mainly China's existing water quality emission standard is lower.For urban wastewater treatment firm pollutant emission standard (GB18918-2002), even if water outlet reaches optimization criteria one-level A, water outlet COD≤50mg/L, total nitrogen≤15mg/L, ammonia nitrogen≤5mg/L, total phosphorus≤0.5mg/L, the V class water quality standard that these standard water outlet Pollutant levels specify far above water environment quality standard (GB3838-2002), requires COD≤40mg/L, total nitrogen≤2mg/L, ammonia nitrogen≤2mg/L, total phosphorus≤0.4mg/L (storehouse, lake 0.2mg/L).Other some industrial wastewater discharge standards and integrated wastewater discharge standard farther far above surface water quality standard.Therefore, even if qualified discharge can be accomplished by sewage work and each enterprise, waste discharge enters water body also will cause great pollution.Therefore, the advanced treatment of tail water becomes the study hotspot of sewage disposal.
Tail water process mainly adopts ecology processing mode at present, is divided into plant treatment and algae process two kinds of modes.Plant treatment has good removal effect to Pollutants in Wastewater, but plant growing cycle is long, large to winter low temperature susceptibility, and harvesting utilizes difficulty, seriously hinders its application.Microalgae has unique metabolic way, the protoplasma of sun power and inorganics synthesis itself can be utilized by photosynthesis, algal grown speed is exceedingly fast, and utilizes algae to dispose of sewage and can overcome the drawbacks such as traditional wastewater treatment process easily causes secondary pollution, potential nutritive substance is lost, resource not exclusively utilizes.But general planktonic algae individuality is less, and mix with process waste water, after absorption pollutent, be difficult to effectively to realize algae water be separated.Periphyton just compensate for this defect, the type algae belongs to adhesivity growth, mainly be distributed in the coastal belt of shallow lake and small rivers, the bottom, pasture and water or other various matrix, in the primary production of whole water body, the output of periphyton can account for sizable ratio, maritime belt higher aquatic plants riotous growth, the primary production of periphyton can account for the 40%-50% of total elementary output.Scholar is verified, and the removal of periphyton to Pollutants in Wastewater has very high efficiency, and migration slowly, forms secondary pollution of water risk little because of algae proliferation.But, generally all adopt the method dropping into Zhou Congzao in tail water water body inside to process at present, be unfavorable for the recycling to Zhou Congzao.
Summary of the invention
The object of the present invention is to provide a kind of low stain Tailwater Depth treatment unit, low stain Tailwater Depth treatment unit structure provided by the invention is simple, reliable, for the treatment of the recycling being convenient to periphyton during low stain tail water.
The invention provides a kind of low stain Tailwater Depth treatment unit, comprising:
Periphyton culture tank, described periphyton culture tank is provided with tail water import and process water out;
Be arranged on the periphyton collection device on described periphyton culture tank, described periphyton collection device comprise to be arranged on described periphyton culture tank, the carriage that can slide along described periphyton culture tank and the periphyton collection bucket be connected with described carriage, described periphyton collection bucket contacts with the periphyton in periphyton culture tank;
The periphyton collection box be connected with described periphyton collection bucket.
Preferably, described periphyton collection bucket is vertically be arranged on the scraper plate on described periphyton culture tank, and described scraper plate side is provided with nylon membrane, and described nylon membrane bottom was provided with water micropore.
Preferably, described nylon membrane is double-layer nylon film.
Preferably, the described aperture crossing water micropore is 2mm ~ 3mm.
Preferably, the aperture of described water micropore excessively on the nylon membrane of scraper plate is less than away from the water micropore excessively on the nylon membrane of scraper plate.
Preferably, described periphyton culture tank is provided with slide rail;
Described carriage comprises the pulley matched with described slide rail, the screw rod be connected with described pulley, and one end of described screw rod is connected with spiral pump, and the other end is connected with described periphyton collection bucket.
Preferably, be provided with water micropore bottom described periphyton collection box, described water micropore top of crossing is provided with nylon membrane.
Preferably, the settling tank be connected with the process water out of described periphyton culture tank is also comprised.
Preferably, the first water butt be connected with the water port of described settling tank is also comprised.
Preferably, also comprise the second water butt be connected with the water outlet of described first water butt by lift pump, the water outlet of described second water butt is connected with described periphyton culture tank.
Compared with prior art, low stain Tailwater Depth treatment unit provided by the invention, comprising: periphyton culture tank, described periphyton culture tank is provided with tail water import and process water out; Be arranged on the periphyton collection device on described periphyton culture tank, described periphyton collection device comprise to be arranged on described periphyton culture tank, the carriage that can slide along described periphyton culture tank and the periphyton collection bucket be connected with described carriage, described periphyton collection bucket contacts with the periphyton in periphyton culture tank; The periphyton collection box be connected with described periphyton collection bucket.The present invention arranges periphyton collection device on periphyton culture tank, described periphyton collection device comprises and along the carriage of described periphyton culture tank slip and can be connected with described carriage and the periphyton collection bucket contacted with the periphyton in periphyton culture tank, described carriage slides along periphyton culture tank, periphyton collection bucket is driven to slide on periphyton, periphyton collection bucket is in sliding process, strike off periphyton and collected, then delivering in periphyton collection box.Apparatus structure provided by the invention is simple, reliable, for the treatment of the recycling being convenient to periphyton during low stain tail water.
Further, periphyton collection bucket of the present invention is vertically be arranged on the scraper plate on described periphyton culture tank, and described scraper plate side is provided with nylon membrane, and described nylon membrane bottom was provided with water micropore; Be provided with water micropore bottom described periphyton collection box, described water micropore top of crossing is provided with nylon membrane.When scraper plate strikes off periphyton, forward, the periphyton of high-moisture percentage is stopped by nylon membrane the nylon membrane side on scraper plate, and moisture passed through water micropore and gets back to periphyton culture tank; Periphyton on nylon membrane enters periphyton collection box, again retained by nylon membrane, the cross water micropore of moisture bottom periphyton collection box flows out, thus obtains the periphyton that water ratio is low, have higher utility value, thus is more conducive to it and again utilizes.
Accompanying drawing explanation
The structural representation of the low stain Tailwater Depth treatment unit that Fig. 1 provides for the embodiment of the present invention.
Embodiment
The invention provides a kind of low stain Tailwater Depth treatment unit, comprising:
Periphyton culture tank, described periphyton culture tank is provided with tail water import and process water out;
Be arranged on the periphyton collection device on described periphyton culture tank, described periphyton collection device comprise to be arranged on described periphyton culture tank, the carriage that can slide along described periphyton culture tank and the periphyton collection bucket be connected with described carriage, described periphyton collection bucket contacts with the periphyton in periphyton culture tank;
The periphyton collection box be connected with described periphyton collection bucket.
See Fig. 1, the structural representation of the low stain Tailwater Depth treatment unit that Fig. 1 provides for the embodiment of the present invention, wherein, 1 is periphyton culture tank, 21 for being arranged on the carriage on periphyton culture tank 1,22 is the periphyton collection bucket be connected with carriage 21,3 is periphyton collection box, 4 is the first water butt be connected with the process water out of periphyton culture tank 1,5 is the second water butt be connected with the first water butt 4 by lift pump, and the water outlet of the second water butt 5 is connected with the tail water import of periphyton culture tank 1.
In the present invention, periphyton culture tank 1 is rectangular slot, groove is provided with tail water import and process water out; Trench bottom is provided with nonwoven fabric mat, and nonwoven fabric mat is namely for the growth of periphyton.Periphyton grows on the non-woven fabrics of trench bottom, and pending tail water flows into periphyton culture tank from tail water import, after Zhou Congzao process wherein, flows out from process water out.Wherein in an embodiment, tail water import and process water out are arranged at the two ends of groove respectively; In other embodiments, tail water import and process water out can be arranged at same one end of groove.
In the present invention, periphyton culture tank 1 is provided with periphyton collection device, it comprise to be arranged on described periphyton culture tank 1, the carriage 21 that can slide along described periphyton culture tank 1 and the periphyton collection bucket 22 be connected with described carriage 21, described periphyton collection bucket 22 contacts with the periphyton in periphyton culture tank.Carriage 21 drives periphyton collection bucket 22 to slide along periphyton culture tank, and periphyton collection bucket 22 strikes off the Zhou Congzao bottom periphyton culture tank simultaneously, is collected, and realizes recycling.
In the present embodiment, carriage 21 comprises the slide rail being arranged on periphyton culture tank 1 both sides, the pulley matched with described slide rail, the screw rod be connected with described pulley, the spiral pump be connected with one end of described screw rod, the other end of screw rod is connected with periphyton collection bucket 22.Under the induced effect of spiral pump, pulley is movable on slide rail, thus drives the slip of periphyton collection bucket 22 in periphyton culture tank 1.In other embodiments, carriage 21 also can be other devices, as long as can realize the slip on periphyton culture tank 1, drives the slip of periphyton collection bucket 22 in periphyton culture tank 1 simultaneously.
In the present embodiment, periphyton collection bucket 22 is vertically be arranged on the scraper plate on described periphyton culture tank, and described scraper plate side is provided with nylon membrane, and described nylon membrane bottom was provided with water micropore.In periphyton collection bucket 22 sliding process, its scraper plate contacts with the periphyton bottom periphyton culture tank 1, is struck off, and the periphyton after striking off sticks on the nylon membrane on scraper plate, thus realizes the recovery of periphyton.Further, nylon membrane bottom was provided with water micropore, and when the periphyton of high-moisture percentage is struck off and adheres to nylon membrane, moisture wherein passed through water micropore and flows back in periphyton culture tank 1, and periphyton then adheres on nylon membrane.In the present embodiment, the aperture crossing water micropore of described nylon membrane bottom is 2mm ~ 3mm
In another embodiment of the present invention, described nylon membrane is double-layer nylon film, is provided with water micropore bottom this double-layer nylon film, and the described aperture crossing water micropore is 2mm ~ 3mm.In the present embodiment, the aperture of described water micropore excessively on the nylon membrane of scraper plate is less than away from the water micropore excessively on the nylon membrane of scraper plate, namely first periphyton adheres on the nylon membrane away from scraper plate, under flow action, this periphyton may adhere on the nylon membrane of scraper plate away from the water micropore of crossing on the nylon membrane of scraper plate through this, water micropore excessively due to the nylon membrane near scraper plate is less than the water micropore excessively of the nylon membrane away from scraper plate, thus ensures that periphyton is fully collected.
Low stain Tailwater Depth treatment unit provided by the invention also comprises the periphyton collection box 3 be connected with described periphyton collection bucket 22, and the effect of periphyton collection box 3 is to place the periphyton collected in periphyton collection bucket 22.In the present embodiment, periphyton collection box 3 is arranged at one end of periphyton culture tank process water out, when periphyton collection bucket 22 to be struck off by tail water inlet end and collects periphyton to process water out one end, its periphyton collected directly falls into all careless algae collection boxs.
In the present embodiment, be provided with water micropore bottom described periphyton collection box 3, described water micropore top of crossing is provided with nylon membrane.When periphyton falls into periphyton collection box 3, under gravity, the cross water micropore of moisture through nylon membrane and bottom thereof flows out, and periphyton is retained by nylon membrane, thus obtains the lower periphyton of water ratio.In the present embodiment, described nylon membrane is double-layer nylon film.
Low stain Tailwater Depth treatment unit working process provided by the invention is as follows:
The tail water import of low stain tail water on periphyton culture tank enters all careless algae culture grooves, is processed by the periphyton of its 1 bottom grown, and the process water after being disposed flows out via process water out;
Carriage drives periphyton collection bucket to be slided to process water out one end by tail water inlet end, and periphyton collection bucket strikes off Zhou Congzao and collected;
When week, careless algae collection bucket slid into process water out one end, the periphyton of collection falls into periphyton collection box.
In low stain Tailwater Depth treatment unit provided by the invention, for ease of the collection of periphyton, when tail water import and process water out lay respectively at the two ends of periphyton culture tank, periphyton culture tank preferably arranges the gradient of 3 ‰ ~ 5 ‰, and namely periphyton culture tank tail water inlet end is slightly high.
Low stain Tailwater Depth treatment unit provided by the invention also comprises the settling tank be connected with the process water out of described periphyton culture tank 1, described settling tank can for the device set up separately, also can for being arranged on the settling region in periphyton culture tank 1, when for settling region, it is arranged on process water out place, by the process water precipitation process through periphyton process.
Low stain Tailwater Depth treatment unit provided by the invention also comprises the first water butt 4 be connected with the water port of described settling tank.When settling tank is when being arranged on the settling region in periphyton culture tank 1, the first water butt 4 is directly connected with the process water out of periphyton culture tank 1.
Low stain Tailwater Depth treatment unit provided by the invention also comprises the second water butt 5 be connected with the water outlet of described first water butt by lift pump, and the water outlet of described second water butt 5 is connected with described periphyton culture tank 1.Tail water, after periphyton process, enters the first water butt 4, is then back in periphyton culture tank 1 through the second water butt 5 under the effect of lift pump behind settling region or settling tank precipitation.
In embodiment provided by the invention, the water outlet of periphyton collection box 3 is connected with the first water butt 4, the water flowed out through action of gravity enters in the first water butt 4, is then back in periphyton culture tank 1 through the second water butt 5 under the effect of lift pump.
In the present invention, periphyton can be selected as classifications such as Melosira (Melosira sp.), Ulothrix (Ulothrix sp.), micro-spore Trentepohlia (Microspora sp.), Oedogoniums (Oedogonium sp.).
In the actual use procedure of said apparatus, low stain tail water slowly flows across the periphyton culture tank of 3 ~ 5 ‰ gradients, in sewage, the periphyton of the type such as nitrogen phosphorus and the grown Melosira in nonwoven fabric mat surface of organism, Ulothrix, micro-spore Trentepohlia, Oedogonium absorbs, synthesize the material of own growth needs through the effect such as peroxide decomposition, cellular metabolism on the one hand, resolve into CO on the one hand
2and water; Water after process, after precipitation, adopts lift pump backflow, circular treatment.Winter, every 4-5 days collected a periphyton, every 2 days of summer collected a periphyton, spiral pump drive pulley, causes algae collection bucket to slide along slide rail, scrapes the periphyton of skim-coat, in traveling process, algae slurry is by clashing into nylon membrane, and part water is by nylon membrane and micropore is back to culture tank, collects mouth enter algae collection box finally by algae, dewater further in algae collection box, the algae of collection carries out resource recycling utilization.It is lower which collects the periphyton water ratio obtained, only about 90%, lower than normal algae slurry water ratio (more than 99%) of collecting.
Low stain Tailwater Depth treatment unit of the present invention still produces the present situation of chronic pollution to water body after having taken into full account most of sewage treatment facility tail water qualified discharge, simplicity of design, automated operation, reliable, and the algae water ratio collected is low, can recycling after further dehydration, this device can be applicable in the process of most of sewage treatment facility Tailwater Depth.
The present invention arranges periphyton collection device on periphyton culture tank, described periphyton collection device comprises and along the carriage of described periphyton culture tank slip and can be connected with described carriage and the periphyton collection bucket contacted with the periphyton in periphyton culture tank, described carriage slides along periphyton culture tank, periphyton collection bucket is driven to slide on periphyton, periphyton collection bucket is in sliding process, strike off periphyton and collected, then delivering in periphyton collection box.Apparatus structure provided by the invention is simple, reliable, for the treatment of the recycling being convenient to periphyton during low stain tail water.
Further, periphyton collection bucket of the present invention is vertically be arranged on the scraper plate on described periphyton culture tank, and described scraper plate side is provided with nylon membrane, and described nylon membrane bottom was provided with water micropore; Be provided with water micropore bottom described periphyton collection box, described water micropore top of crossing is provided with nylon membrane.When scraper plate strikes off periphyton, forward, the periphyton of high-moisture percentage is stopped by nylon membrane the nylon membrane side on scraper plate, and moisture passed through water micropore and gets back to periphyton culture tank; Periphyton on nylon membrane enters periphyton collection box, again retained by nylon membrane, the cross water micropore of moisture bottom periphyton collection box flows out, thus obtains the periphyton that water ratio is low, have higher utility value, thus is more conducive to it and again utilizes.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (6)
1. a low stain Tailwater Depth treatment unit, comprising:
Periphyton culture tank, described periphyton culture tank is provided with tail water import and process water out;
Be arranged on the periphyton collection device on described periphyton culture tank, described periphyton collection device comprise to be arranged on described periphyton culture tank, the carriage that can slide along described periphyton culture tank and the periphyton collection bucket be connected with described carriage, described periphyton collection bucket contacts with the periphyton in periphyton culture tank; Described periphyton collection bucket is vertically be arranged on the scraper plate on described periphyton culture tank, and described scraper plate side is provided with nylon membrane, and described nylon membrane bottom was provided with water micropore;
The periphyton collection box be connected with described periphyton collection bucket;
Described nylon membrane is double-layer nylon film; The described aperture crossing water micropore is 2mm ~ 3mm; The aperture of described water micropore excessively on the nylon membrane of scraper plate is less than away from the water micropore excessively on the nylon membrane of scraper plate.
2. low stain Tailwater Depth treatment unit according to claim 1, is characterized in that, described periphyton culture tank is provided with slide rail;
Described carriage comprises the pulley matched with described slide rail, the screw rod be connected with described pulley, and one end of described screw rod is connected with spiral pump, and the other end is connected with described periphyton collection bucket.
3. low stain Tailwater Depth treatment unit according to claim 1, is characterized in that, is provided with water micropore bottom described periphyton collection box, and described water micropore top of crossing is provided with nylon membrane.
4. low stain Tailwater Depth treatment unit according to claim 1, is characterized in that, also comprises the settling tank be connected with the process water out of described periphyton culture tank.
5. low stain Tailwater Depth treatment unit according to claim 4, is characterized in that, also comprises the first water butt be connected with the water port of described settling tank.
6. low stain Tailwater Depth treatment unit according to claim 5, it is characterized in that, also comprise the second water butt be connected with the water outlet of described first water butt by lift pump, the water outlet of described second water butt is connected with described periphyton culture tank.
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| US20170158995A1 (en) * | 2014-07-08 | 2017-06-08 | Biosystems As | Bioreactor for production and harvesting of microalgae |
| CN105624025B (en) * | 2014-10-31 | 2018-03-20 | 中国科学院生态环境研究中心 | A kind of culture apparatus of periphyton |
| CN106242168B (en) * | 2016-08-22 | 2019-04-02 | 中南民族大学 | A method of animal farm wastewater is handled using periphyton |
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Address after: No.99 Xuefu Road, Suzhou, Jiangsu, 215009 Patentee after: SUZHOU University OF SCIENCE AND TECHNOLOGY Address before: 215009 CREE Road, Suzhou hi tech Zone, Suzhou, Jiangsu Province, No. 1 Patentee before: University OF SCIENCE AND TECHNOLOGY OF SUZHOU |
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Effective date of registration: 20230103 Address after: 2302, Floor 3, Hongmao Business Building, No. A8, Hongjunying East Road, Shunyi District, Beijing 100012 Patentee after: BEIJING HUAQING RONGHAO NEW ENERGY DEVELOPMENT CO.,LTD. Address before: No.99 Xuefu Road, Suzhou, Jiangsu, 215009 Patentee before: SUZHOU University OF SCIENCE AND TECHNOLOGY |