CN103523927A - Low-pollution tail water advanced treatment device - Google Patents
Low-pollution tail water advanced treatment device Download PDFInfo
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- CN103523927A CN103523927A CN201310528568.6A CN201310528568A CN103523927A CN 103523927 A CN103523927 A CN 103523927A CN 201310528568 A CN201310528568 A CN 201310528568A CN 103523927 A CN103523927 A CN 103523927A
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Abstract
The invention provides a low-pollution tail water advanced treatment device which comprises a periphytic algae cultivation groove, a periphytic algae collecting device and a periphytic algae collecting box. A tail water inlet and a treating water outlet are formed in the periphytic algae cultivation groove, the periphytic algae collecting device is arranged on the periphytic algae cultivation groove and comprises a slide device and a periphytic algae collecting hopper, the slide device is arranged on the periphytic algae cultivation groove and can slide along the periphytic algae cultivation groove, and the periphytic algae collecting hopper is connected with the slide device. The periphytic algae collecting hopper is in contact with periphytic algae in the periphytic algae cultivation groove, and the periphytic algae collecting box is connected with the periphytic algae collecting hopper. The low-pollution tail water advanced treatment device is simple in structure, and reliable in operation, and facilitates recycling of the periphytic algae when being used for treating the low-pollution tail water.
Description
Technical field
The invention belongs to tail water processing technology field, relate in particular to a kind of low pollution Tailwater Depth treatment unit.
Background technology
In recent years, along with the great attention of governments at all levels to water pollution control, water pollution control facility and level have raising by a relatively large margin.With town sewage, be treated to example, end 2012, national the planned city, county's accumulative total are built up 3272 of urban wastewater treatment firms, and processing power reached for 1.40 billion cubic meter/days, and treatment rate of domestic sewage reaches 84.9%, and most of town sewage obtains processing up to standard.But China's surface water environment situation still allows of no optimist, in the state of ten large watersheds and emphasis lake (reservoir) control section, 40% left and right is inferior in IV Lei Shui ，Er60Ge state control emphasis lake (reservoir), and the above lake of middle nutrient laden state accounts for 86.7%.
The fast lifting of wastewater treatment rate, but water environment situation still allows of no optimist, and has contradiction here, infers it is mainly the lower reason of the existing water quality emission standard of China.The urban wastewater treatment firm pollutant emission standard (GB18918-2002) of take is example, 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, these standard water outlet Pollutant levels, far above the V class water quality standard of water environment quality standard (GB3838-2002) regulation, require 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 are farther far above surface water quality standard.Therefore,, even if qualified discharge can be accomplished by He Ge enterprise of sewage work, 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 is processed the main ecology processing mode that adopts at present, is divided into plant treatment and algae and processes two kinds of modes.Plant treatment has good removal effect to Pollutants in Wastewater, but the plant-growth cycle is long, large to winter low temperature susceptibility, and harvesting utilization difficulty, has seriously hindered its application.Microalgae has unique metabolic way, can utilize sun power and the synthetic protoplasma of inorganics own by photosynthesis, algal grown speed is exceedingly fast, and utilizes algae to dispose of sewage can to overcome that traditional wastewater treatment process easily causes that secondary pollution, potential nutritive substance are lost, the incomplete drawback such as utilization of resource.But general planktonic algae individuality is less, and mix with processing waste water, after absorbing pollutent, be difficult to effectively realize algae water separated.Periphyton has just made up this defect, the type algae belongs to adhesivity growth, mainly be distributed in coastal belt, the bottom, pasture and water or other various matrix of shallow lake and small rivers, 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 periphyton has very high efficiency to the removal of Pollutants in Wastewater, and slowly, because of algae proliferation, to form secondary pollution of water risk little in migration.But, generally all adopt in the method for the inner Zhou Congzao of input of tail water water body and 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 pollution Tailwater Depth treatment unit, low pollution Tailwater Depth treatment unit provided by the invention is simple in structure, reliable, is convenient to the recycling of periphyton during for the treatment of low pollution tail water.
The invention provides a kind of low pollution Tailwater Depth treatment unit, comprising:
Periphyton culture tank, is provided with tail water import and processes water out on described periphyton culture tank;
Be arranged on the periphyton collection device on described periphyton culture tank, described periphyton collection device comprises the carriage and the periphyton collection bucket being connected with described carriage that is arranged on described periphyton culture tank, can slides along described periphyton culture tank, and described periphyton collection bucket contacts with the periphyton in periphyton culture tank;
The periphyton collection box being connected with described periphyton collection bucket.
Preferably, described periphyton collection bucket is for to be vertically arranged on the scraper plate on described periphyton culture tank, and described scraper plate one 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 of crossing water micropore is 2mm～3mm.
Preferably, the aperture of water micropore excessively on the described close nylon membrane of scraper plate is less than away from the water micropore excessively on the nylon membrane of scraper plate.
Preferably, on described periphyton culture tank, be provided with slide rail;
Described carriage comprises the pulley matching with described slide rail, and with the screw rod that described pulley is connected, one end of described screw rod is connected with spiral pump, and the other end is connected with described periphyton collection bucket.
Preferably, described periphyton collection box bottom was provided with water micropore, and the described water micropore top of crossing is provided with nylon membrane.
Preferably, also comprise the settling tank being connected with the processing water out of described periphyton culture tank.
Preferably, also comprise the first water butt being connected with the water port of described settling tank.
Preferably, also comprise the second water butt being connected with the water outlet of described the first water butt by lift pump, the water outlet of described the second water butt is connected with described periphyton culture tank.
Compared with prior art, low pollution Tailwater Depth treatment unit provided by the invention, comprising: periphyton culture tank, is provided with tail water import and processes water out on described periphyton culture tank; Be arranged on the periphyton collection device on described periphyton culture tank, described periphyton collection device comprises the carriage and the periphyton collection bucket being connected with described carriage that is arranged on described periphyton culture tank, can slides along described periphyton culture tank, and described periphyton collection bucket contacts with the periphyton in periphyton culture tank; The periphyton collection box being connected with described periphyton collection bucket.The present invention arranges periphyton collection device on periphyton culture tank, the periphyton collection bucket that described periphyton collection device comprises that the carriage that can slide along described periphyton culture tank be connected with described carriage and contacts with periphyton in periphyton culture tank, described carriage slides along periphyton culture tank, drive periphyton collection bucket 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, is convenient to the recycling of periphyton during for the treatment of low pollution tail water.
Further, periphyton collection bucket of the present invention is for to be vertically arranged on the scraper plate on described periphyton culture tank, and described scraper plate one side is provided with nylon membrane, and described nylon membrane bottom was provided with water micropore; Described periphyton collection box bottom was provided with water micropore, and the described water micropore top of crossing is provided with nylon membrane.When scraper plate strikes off periphyton, before nylon membrane one side direction on scraper plate, the periphyton of high-moisture percentage stopped by nylon membrane, and moisture passed through water micropore and gets back to periphyton culture tank; Periphyton on nylon membrane enters periphyton collection box, again by nylon membrane, held back, moisture flows out through the water micropore of crossing of periphyton collection box bottom, thereby obtains the periphyton that water ratio is low, have higher utility value, thereby be more conducive to it, again utilizes.
Accompanying drawing explanation
The structural representation of the low pollution Tailwater Depth treatment unit that Fig. 1 provides for the embodiment of the present invention.
Embodiment
The invention provides a kind of low pollution Tailwater Depth treatment unit, comprising:
Periphyton culture tank, is provided with tail water import and processes water out on described periphyton culture tank;
Be arranged on the periphyton collection device on described periphyton culture tank, described periphyton collection device comprises the carriage and the periphyton collection bucket being connected with described carriage that is arranged on described periphyton culture tank, can slides along described periphyton culture tank, and described periphyton collection bucket contacts with the periphyton in periphyton culture tank;
The periphyton collection box being connected with described periphyton collection bucket.
Referring to Fig. 1, the structural representation of the low pollution 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 being connected with carriage 21,3 is periphyton collection box, 4 is the first water butt being connected with the processing water out of periphyton culture tank 1,5 is the second water butt being 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, is provided with tail water import and processes water out on groove; Trench bottom is provided with nonwoven fabric mat, and nonwoven fabric mat is for the growth of periphyton.Periphyton is grown on the non-woven fabrics of trench bottom, and pending tail water flows into periphyton culture tank from tail water import, after Zhou Congzao processing wherein, from processing water out, flows out.In an embodiment, tail water import and processing water out are arranged at respectively the two ends of groove therein; In other embodiments, tail water import and processing water out can be arranged at same one end of groove.
In the present invention, on periphyton culture tank 1, be provided with periphyton collection device, it comprises the carriage 21 and the periphyton collection bucket 22 being connected with described carriage 21 that is arranged on described periphyton culture tank 1, can slides along described periphyton culture tank 1, and 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 of periphyton culture tank bottom simultaneously, is collected, and realizes and recycling.
In the present embodiment, carriage 21 comprises the slide rail that is arranged on periphyton culture tank 1 both sides, the pulley matching with described slide rail, the screw rod being connected with described pulley, with the spiral pump that one end of described screw rod is connected, 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, thereby drives the slip of periphyton collection bucket 22 in periphyton culture tank 1.In other embodiments, carriage 21 can be also 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 for to be vertically arranged on the scraper plate on described periphyton culture tank, and described scraper plate one side is provided with nylon membrane, and described nylon membrane bottom was provided with water micropore.In periphyton collection bucket 22 sliding processes, its scraper plate contacts with the periphyton of periphyton culture tank 1 bottom, is struck off, and the periphyton after striking off sticks on the nylon membrane on scraper plate, thereby 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 flows back in periphyton culture tank 1 by crossing water micropore, and periphyton adheres on nylon membrane.In the present embodiment, the aperture of 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, and this double-layer nylon film bottom was provided with water micropore, and the described aperture of crossing water micropore is 2mm～3mm.In the present embodiment, the aperture of water micropore excessively on the described close nylon membrane of scraper plate is less than away from the water micropore excessively on the nylon membrane of scraper plate, be that first periphyton adheres on the nylon membrane away from scraper plate, under flow action, this periphyton may adhere near on the nylon membrane of scraper plate away from the water micropore of crossing on the nylon membrane of scraper plate through this, due near the nylon membrane of scraper plate cross water micropore be less than away from the nylon membrane of scraper plate cross water micropore, thereby guarantee that periphyton is fully collected.
Low pollution Tailwater Depth treatment unit provided by the invention also comprises the periphyton collection box 3 being connected with described periphyton collection bucket 22, and the effect of periphyton collection box 3 is to place the periphyton of periphyton collection bucket 22 interior collections.In the present embodiment, periphyton collection box 3 is arranged at one end that periphyton culture tank is processed water out, when periphyton collection bucket 22 strikes off and collect periphyton when processing water out one end by tail water import one end, the periphyton of its collection directly falls into all careless algae collection boxs.
In the present embodiment, described periphyton collection box 3 bottoms were provided with water micropore, and the described water micropore top of crossing is provided with nylon membrane.When periphyton falls into periphyton collection box 3, under action of gravity, moisture flows out through the water micropore of crossing of nylon membrane and bottom thereof, and periphyton is held back by nylon membrane, thereby obtains the periphyton that water ratio is lower.In the present embodiment, described nylon membrane is double-layer nylon film.
Low pollution Tailwater Depth treatment unit working process provided by the invention is as follows:
Low pollution tail water enters all careless algae culture grooves through the tail water import on periphyton culture tank, by the periphyton of its 1 bottom growth, is processed, and the processing water after being disposed flows out via processing water out;
Carriage drives periphyton collection bucket to be slided to processing water out one end by tail water import one end, and periphyton collection bucket strikes off Zhou Congzao and by its collection;
Week, careless algae collection bucket slid into while processing water out one end, and the periphyton of collection falls into periphyton collection box.
In low pollution Tailwater Depth treatment unit provided by the invention, collection for ease of periphyton, when tail water import lays respectively at the two ends of periphyton culture tank with processing water out, periphyton culture tank preferably arranges 3 ‰～5 ‰ the gradient, and periphyton culture tank tail water import one end is slightly high.
Low pollution Tailwater Depth treatment unit provided by the invention also comprises the settling tank being connected with the processing water out of described periphyton culture tank 1, described settling tank can be the device of setting up separately, also can be for being arranged on the settling region in periphyton culture tank 1, when being settling region, it is arranged on processes water out place, and the processing water precipitation of processing through periphyton is processed.
Low pollution Tailwater Depth treatment unit provided by the invention also comprises the first water butt 4 being connected with the water port of described settling tank.When settling tank is the settling region being arranged in periphyton culture tank 1, the first water butt 4 is directly connected with the processing water out of periphyton culture tank 1.
Low pollution Tailwater Depth treatment unit provided by the invention also comprises the second water butt 5 being connected with the water outlet of described the first water butt by lift pump, and the water outlet of described the second water butt 5 is connected with described periphyton culture tank 1.Tail water, after periphyton is processed, enters the first water butt 4 after settling region or settling tank precipitation, then under the effect of lift pump, through the second water butt 5, is back in periphyton culture tank 1.
In embodiment provided by the invention, the water outlet of periphyton collection box 3 is connected with the first water butt 4, the water flowing out through action of gravity enters in the first water butt 4, then under the effect of lift pump, through the second water butt 5, is back in periphyton culture tank 1.
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 pollution tail water slowly flows through the periphyton culture tank of 3～5 ‰ gradients, in sewage, the periphyton of the type such as the grown Melosira in nonwoven fabric mat surface of nitrogen phosphorus and organism, Ulothrix, micro-spore Trentepohlia, Oedogonium absorbs, through the effect such as peroxide decomposition, the cellular metabolism material of synthetic self growth needs on the one hand, resolve on the one hand CO
2and water; Water after processing, after precipitation, adopts lift pump to reflux, circular treatment.Collect a periphyton every 4-5 days winter, collected a periphyton in every 2 days of summer, 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 back to culture tank by nylon membrane micropore, finally by algae, collects mouth and enters algae collection box, further dehydration in algae collection box, the algae of collection carries out resource recycling utilization.It is lower which is collected the periphyton water ratio obtaining, only in 90% left and right, lower than the normal algae slurry water ratio (more than 99%) of collecting.
Low pollution Tailwater Depth treatment unit of the present invention still produces the present situation of chronic pollution after having taken into full account most of sewage treatment facility tail water qualified discharges to water body, simplicity of design, automated operation, reliable, and the algae water ratio of collecting is low, further can recycling after dehydration, this device can be applicable in most of sewage treatment facility Tailwater Depth is processed.
The present invention arranges periphyton collection device on periphyton culture tank, the periphyton collection bucket that described periphyton collection device comprises that the carriage that can slide along described periphyton culture tank be connected with described carriage and contacts with periphyton in periphyton culture tank, described carriage slides along periphyton culture tank, drive periphyton collection bucket 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, is convenient to the recycling of periphyton during for the treatment of low pollution tail water.
Further, periphyton collection bucket of the present invention is for to be vertically arranged on the scraper plate on described periphyton culture tank, and described scraper plate one side is provided with nylon membrane, and described nylon membrane bottom was provided with water micropore; Described periphyton collection box bottom was provided with water micropore, and the described water micropore top of crossing is provided with nylon membrane.When scraper plate strikes off periphyton, before nylon membrane one side direction on scraper plate, the periphyton of high-moisture percentage stopped by nylon membrane, and moisture passed through water micropore and gets back to periphyton culture tank; Periphyton on nylon membrane enters periphyton collection box, again by nylon membrane, held back, moisture flows out through the water micropore of crossing of periphyton collection box bottom, thereby obtains the periphyton that water ratio is low, have higher utility value, thereby be more conducive to it, 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 (10)
1. a low pollution Tailwater Depth treatment unit, comprising:
Periphyton culture tank, is provided with tail water import and processes water out on described periphyton culture tank;
Be arranged on the periphyton collection device on described periphyton culture tank, described periphyton collection device comprises the carriage and the periphyton collection bucket being connected with described carriage that is arranged on described periphyton culture tank, can slides along described periphyton culture tank, and described periphyton collection bucket contacts with the periphyton in periphyton culture tank;
The periphyton collection box being connected with described periphyton collection bucket.
2. low pollution Tailwater Depth treatment unit according to claim 1, it is characterized in that, described periphyton collection bucket is for to be vertically arranged on the scraper plate on described periphyton culture tank, and described scraper plate one side is provided with nylon membrane, and described nylon membrane bottom was provided with water micropore.
3. low pollution Tailwater Depth treatment unit according to claim 2, is characterized in that, described nylon membrane is double-layer nylon film.
4. low pollution Tailwater Depth treatment unit according to claim 3, is characterized in that, the described aperture of crossing water micropore is 2mm～3mm.
5. low pollution Tailwater Depth treatment unit according to claim 4, is characterized in that, the aperture of water micropore excessively on the described close nylon membrane of scraper plate is less than away from the water micropore excessively on the nylon membrane of scraper plate.
6. low pollution Tailwater Depth treatment unit according to claim 1, is characterized in that, on described periphyton culture tank, is provided with slide rail;
Described carriage comprises the pulley matching with described slide rail, and with the screw rod that described pulley is connected, one end of described screw rod is connected with spiral pump, and the other end is connected with described periphyton collection bucket.
7. low pollution Tailwater Depth treatment unit according to claim 1, is characterized in that, described periphyton collection box bottom was provided with water micropore, and the described water micropore top of crossing is provided with nylon membrane.
8. low pollution Tailwater Depth treatment unit according to claim 1, is characterized in that, also comprises the settling tank being connected with the processing water out of described periphyton culture tank.
9. low pollution Tailwater Depth treatment unit according to claim 8, is characterized in that, also comprises the first water butt being connected with the water port of described settling tank.
10. low pollution Tailwater Depth treatment unit according to claim 9, it is characterized in that, also comprise the second water butt being connected with the water outlet of described the first water butt by lift pump, the water outlet of described the second water butt is connected with described periphyton culture tank.
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| CN201310528568.6A CN103523927B (en) | 2013-10-30 | 2013-10-30 | A kind of low stain Tailwater Depth treatment unit |
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| CN201310528568.6A CN103523927B (en) | 2013-10-30 | 2013-10-30 | A kind of low stain Tailwater Depth treatment unit |
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| CN103523927B CN103523927B (en) | 2015-07-29 |
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| CN106242168A (en) * | 2016-08-22 | 2016-12-21 | 中南民族大学 | A kind of method utilizing periphyton to process animal farm wastewater |
| CN107155333A (en) * | 2014-07-08 | 2017-09-12 | 生物系统公司 | For production and the bioreactor of harvesting microalgae class |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103523927B (en) | 2015-07-29 |
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