CN207276423U - Sewage-treatment plant with cavitation air flotation sedimentation basin and biofilter - Google Patents

Abstract

The utility model is a kind of sewage-treatment plant with cavitation air flotation sedimentation basin and biofilter, including stirring pool, cavitation air flotation sedimentation basin, biofilter, discharge bay, roots blower, the cavitation air flotation sedimentation basin includes contact zone of dissolved air flotation, air flotation zone, cone-shaped collection bucket, it is characterised in that：The stirring pool, contact zone of dissolved air flotation, air flotation zone, biofilter, discharge bay are sequentially connected；Cavltation aerator is equipped with the contact zone of dissolved air flotation；The air flotation zone bottom connects the cone-shaped collection bucket, and air flotation zone bottom is equipped with cavitation air flotation return duct；Ceramics filling layer, aerating system, filtration system, waste water collection tank are equipped with the biofilter, the biofilter bottom is connected by the filtration system with discharge bay, the filtration system includes several ABS filter caps, the aerating system is equipped with above filtration system, the aerating system includes several aeration plates, and the ceramics filling layer is equipped with above aerating system.

Description

Sewage-treatment plant with cavitation air flotation sedimentation basin and biofilter

Technical field

A kind of sewage-treatment plant is the utility model is related to, one kind is particularly disclosed and carries cavitation air flotation sedimentation basin and biology The sewage-treatment plant in filter tank.

Background technology

Livestock and poultry cultivation sewage quantity that current nationwide scaleization farm discharges daily is big, concentrates, and contains greatly in sewage Pollutant is measured, such as CODcr, ammonia nitrogen, heavy metal, remaining veterinary drug and substantial amounts of pathogen, are such as directly discharged without processing, It will cause seriously to pollute, its main harm is as follows：

1st, to the harm of water body：Aquaculture sewage belongs to the high concentration organic sewage containing a large amount of pathogen, large amount of organic After matter enters water body, the dissolved oxygens in a large amount of consumption water are made water body smelly, cause aquatile largely dead by the decomposition of organic matter Die；Nitrogen, phosphorus can make body eutrophication.

2nd, to the harm of atmospheric environment：Livestock and poultry cultivation sewage can produce substantial amounts of NH under anaerobic conditions₃、H₂The effluviums such as S Body, these foul gas will influence and endanger the health of keeper and surrounding resident.

3rd, to the harm in farmland and crop：Containing nutrients such as more nitrogen, phosphorus, potassium in livestock and poultry breeding industry sewage, if not Administration through any processing just directly, continuous, excessive, then can cause undesirable influence to the growth of soil and crops, such as draw Playing crop yield reduces, postpones maturity period, the production for influencing succeeding crop etc..

Current cultivation industry, small medium-and-large-sized farm are designed with special sewage disposal system, are realized by process combination Sewage disposal target, but for miniature farm, it is relatively fewer to go out sewage quantity daily, is usually 2-10T/D, this raiser It is also very big to occupy ratio, and such raiser's fund is few, demand is big, it is difficult to there is the sewage disposal for meeting their demands System, and since miniature farm staff is few, the typically no personnel for being responsible for sewage discharging management specially, cause to enter The sewage impurity of sewage disposal system is more, and big impact is easily caused to equipment.

The content of the invention

The purpose of this utility model is that the defects of solving the prior art, there is provided one kind carries cavitation air flotation sedimentation basin and life The sewage-treatment plant in thing filter tank, goes out that sewage quantity is relatively fewer, fund is few, available daily for the raiser of miniature farm The characteristics of area is big, the core process of livestock and poultry cultivation sewage disposal is focused in an equipment, achievees the purpose that sewage disposal, And the utility model is more preferable for the wastewater treatment efficiency that suspended particulate content is big, organic concentration is low.

The utility model is realized in this way：A kind of sewage disposal dress with cavitation air flotation sedimentation basin and biofilter Put, including stirring pool, cavitation air flotation sedimentation basin, biofilter, discharge bay, roots blower, the cavitation air flotation sedimentation basin include Contact zone of dissolved air flotation, air flotation zone, cone-shaped collection bucket, it is characterised in that：The stirring pool, contact zone of dissolved air flotation, air flotation zone, biological filter Pond, discharge bay are sequentially connected；Cavltation aerator is equipped with the contact zone of dissolved air flotation；The air flotation zone bottom connects the taper and receives Collection bucket, air flotation zone top is equipped with Slag Scraping Device and waste residue collecting tank, bottom are equipped with cavitation air flotation return duct, the cavitation air flotation reflux Collecting pipe is equipped with above pipe, the air flotation zone is connected by the collecting pipe with biofilter；Pottery is equipped with the biofilter Particulate filler layer, aerating system, filtration system, waste water collection tank, the biofilter bottom pass through the filtration system and water outlet Pond connects, and the filtration system includes several ABS filter caps, and the aerating system, the aeration system are equipped with above filtration system System includes several aeration plates, is equipped with the ceramics filling layer above aerating system, the roots blower connects several respectively Aeration plate, the waste water collection tank are arranged at the top of biofilter.

The stirring pool bottom is equipped with support column, side surface upper part is equipped with wastewater influent pipeline, top is equipped with adding of agent pipe Road, speed mixer is equipped with the stirring pool, and the stirring pool passes through water outlet and the air supporting that its side bottom is set Contact zone connects.The contact zone of dissolved air flotation by the cavitation air flotation return duct and is arranged on contact zone of dissolved air flotation side top respectively Water outlet connection air flotation zone.The side of the discharge bay connects tap water inlet pipe, by the second electricity by the first solenoid valve Magnet valve connects outlet pipe.The waste water collection tank connects backwash water outlet pipe.The quantity of several aeration plates is 5-30. The quantity of several ABS filter caps is 6-30.

The beneficial effects of the utility model are：The utility model is simple in structure, daily management is simple and convenient to operate, sewage High treating effect, energy conservation and environmental protection.The utility model for suspended particulate content is big, organic concentration is low wastewater treatment efficiency more It is good.The speed mixer of the utility model stirring pool can make medicament play one's part to the full to produce larger alumen ustum, then through place The sewage of reason enters air flotation zone after being sufficiently mixed in contact zone of dissolved air flotation and microbubble, is scraped scum silica frost by Slag Scraping Device in air flotation zone Into waste residue collecting tank, the big flocculation group not floated then is deposited in cone-shaped collection bucket, and waste residue collecting tank and taper are received Dirt in collection bucket is periodically cleared up according to sewage load, and the water after air-flotation process is entered in biofilter, raw Ceramics filling is equipped with thing filter tank and aerating system, bottom are equipped with filtration system, and activated sludge is attached on ceramics filling, so Can more fully it react with Organic substance in water matter, the water after biochemistry enters discharge bay by filtration system, comprehensive After technique, the utility model water outlet can meet field irrigation effluent standard；, can be with after the utility model runs a period of time Backwash is carried out to the filtration system of biofilter using tap water by the first solenoid valve, to ensure filter effect and water outlet product Matter.

Brief description of the drawings

Fig. 1 is the structure diagram of the utility model.

In figure：1st, speed mixer；2nd, Cavltation aerator；3rd, Slag Scraping Device；4th, waste residue collecting tank；5th, collecting pipe； 6、 Cavitation air flotation return duct；7th, cone-shaped collection bucket；8th, ABS filter caps；9th, aeration plate；10th, ceramics filling layer；11st, Luo Cifeng Machine；12nd, backwash water outlet pipe；13rd, the first solenoid valve；14th, second solenoid valve；15th, waste water collection tank；16th, stirring pool； 17th, contact zone of dissolved air flotation；18th, air flotation zone；19th, biofilter；20th, discharge bay；21st, wastewater influent pipeline；22nd, medicament is thrown Add pipeline；23rd, support column.

Embodiment

With reference to the accompanying drawings 1, a kind of sewage-treatment plant with cavitation air flotation sedimentation basin and biofilter of the utility model, bag Include stirring pool 16, cavitation air flotation sedimentation basin, biofilter 19, discharge bay 20, roots blower 11, the cavitation air flotation sedimentation basin bag Include contact zone of dissolved air flotation 17, air flotation zone 18, cone-shaped collection bucket 7, the stirring pool 16, contact zone of dissolved air flotation 17, air flotation zone 18, biological filter Pond 19, discharge bay 20 are sequentially connected；Cavltation aerator 2 is equipped with the contact zone of dissolved air flotation 17；18 bottom of the air flotation zone connection The cone-shaped collection bucket 7, the top of air flotation zone 18 is equipped with Slag Scraping Device 3 and waste residue collecting tank 4, bottom are equipped with cavitation air flotation return duct 6, The top of cavitation air flotation return duct 6 is equipped with collecting pipe 5, and the air flotation zone 18 is connected by the collecting pipe 5 with biofilter 19 Connect；Ceramics filling layer 10, aerating system, filtration system, waste water collection tank 15, the biological filter are equipped with the biofilter 19 19 bottom of pond is connected by the filtration system with discharge bay 20, and the filtration system includes several ABS filter caps 8, filtering system System top is equipped with the aerating system, and the aerating system includes several aeration plates 9, the haydite is equipped with above aerating system Packing layer 10, the roots blower 11 connect several aeration plates 9 respectively, and the waste water collection tank 15 is arranged on biofilter 19 Top.

16 bottom of stirring pool is equipped with support column 23, side surface upper part is equipped with wastewater influent pipeline 21, top is equipped with medicament Pipeline 22 is added, speed mixer 1, the water outlet that the stirring pool 16 is set by its side bottom are equipped with the stirring pool 16 Mouth is connected with the contact zone of dissolved air flotation 17.The contact zone of dissolved air flotation 17 by the cavitation air flotation return duct 6 and is arranged on respectively The water outlet connection air flotation zone 18 of 17 side top of contact zone of dissolved air flotation.The side of the discharge bay 20 is connected by the first solenoid valve 13 Connect tap water inlet pipe, outlet pipe is connected by second solenoid valve 14.The waste water collection tank 15 connects backwash water outlet pipe 12. The quantity of several aeration plates 9 is 5-30.The quantity of several ABS filter caps 8 is 6-30.

During utility model works, sewage enters stirring pool 16 from the wastewater influent pipeline 21, is thrown by the medicament Pipeline 22 is added to launch PAC, PAM medicament in stirring pool 16, the speed mixer 1 makes medicament sufficiently be mixed with sewage, and Larger alumen ustum is produced, then processed sewage is filled in the microbubble that the contact zone of dissolved air flotation 17 is produced with Cavltation aerator 2 Air flotation zone 18 is entered after dividing mixing, is scraped the scum silica frost on 18 surface of air flotation zone, foam by the Slag Scraping Device 3 in air flotation zone 18 In waste residue collecting tank 4, the big flocculation group not floated then is deposited in the cone-shaped collection bucket 7, waste residue collecting tank 4 and cone Dirt in shape collection bucket 7 is periodically cleared up according to sewage load, and the water after air-flotation process passes through the collecting pipe 5 Enter in biofilter 19, ceramics filling is equipped with biofilter 19 and aerating system, bottom are equipped with filtration system, activity is dirty Mud is attached on ceramics filling, so can more fully be reacted with Organic substance in water matter, the water after biochemistry passes through Filtration system enters discharge bay 20, and after composite technology, the utility model water outlet can meet field irrigation effluent standard.Sieve Thatch wind turbine 11 connects several aeration plates 9 and is used to be aerated respectively；While microbubble is produced, meeting exists the Cavltation aerator 2 The bottom of pond of air flotation zone 18 forms a negative pressuren zone, and this suction function can make sewage pass through cavitation air flotation from the bottom of air flotation zone 18 Return duct 6 is back to contact zone of dissolved air flotation 17, this process ensures 40% or so sewage backflow and without water inlet in the case of gas Floating section is still operable.

After a period of time is run in biofilter 19（Generally 2-3D）, second solenoid valve 14 is closed, opens the first electromagnetism Valve 13, accesses tap water, tap water rinses out the organic matter adhered in ABS filter caps 8, flushing waste water by the first solenoid valve 13 Discharged by backwash water outlet pipe 12, during system normal operation, the first solenoid valve 13 is in off state, and second solenoid valve 14 is opens Open state.

The utility model is simple in structure, daily management is simple and convenient to operate, good sewage processing effect, energy conservation and environmental protection.This reality With new more preferable for suspended particulate content is big, organic concentration is low wastewater treatment efficiency.The utility model stirring pool 16 Speed mixer 1 can make medicament play one's part to the full to produce larger alumen ustum, and then processed sewage is in contact zone of dissolved air flotation 17 with microbubble be sufficiently mixed after enter air flotation zone 18, scum silica frost is scraped by waste residue collecting tank 4 by Slag Scraping Device 3 in air flotation zone 18 In, the big flocculation group not floated then is deposited in cone-shaped collection bucket 7, the dirt in waste residue collecting tank 4 and cone-shaped collection bucket 7 Thing is periodically cleared up according to sewage load, and the water after air-flotation process is entered in biofilter 19, biofilter 19 In be equipped with ceramics filling and aerating system, bottom and be equipped with filtration system, activated sludge is attached on ceramics filling, so can be more Sufficiently react with Organic substance in water matter, the water after biochemistry enters discharge bay 20, composite technology by filtration system Afterwards, the utility model water outlet can meet field irrigation effluent standard；After the utility model runs a period of time, it can pass through First solenoid valve 13 carries out backwash using tap water to the filtration system of biofilter 19, to ensure filter effect and water outlet product Matter.

Claims (7)

1. a kind of sewage-treatment plant with cavitation air flotation sedimentation basin and biofilter, including stirring pool, cavitation air flotation precipitation Pond, biofilter, discharge bay, roots blower, the cavitation air flotation sedimentation basin include contact zone of dissolved air flotation, air flotation zone, cone-shaped collection Bucket, it is characterised in that：The stirring pool, contact zone of dissolved air flotation, air flotation zone, biofilter, discharge bay are sequentially connected；The air supporting connects Touch in area and be equipped with Cavltation aerator；The air flotation zone bottom connects the cone-shaped collection bucket, be equipped with the top of air flotation zone Slag Scraping Device and Waste residue collecting tank, bottom are equipped with cavitation air flotation return duct, and collecting pipe, the air flotation zone are equipped with above the cavitation air flotation return duct It is connected by the collecting pipe with biofilter；In the biofilter be equipped with ceramics filling layer, aerating system, filtration system, Waste water collection tank, the biofilter bottom are connected by the filtration system with discharge bay, and the filtration system includes some A ABS filter caps, filtration system top are equipped with the aerating system, and the aerating system includes several aeration plates, aerating system Top is equipped with the ceramics filling layer, and the roots blower connects several aeration plates respectively, and the waste water collection tank is arranged on At the top of biofilter.

2. the sewage-treatment plant with cavitation air flotation sedimentation basin and biofilter according to claim 1, its feature It is：The stirring pool bottom is equipped with support column, side surface upper part is equipped with wastewater influent pipeline, top is equipped with adding of agent pipeline, Speed mixer is equipped with the stirring pool, the stirring pool is contacted by the water outlet that its side bottom is set with the air supporting Area connects.

3. the sewage-treatment plant with cavitation air flotation sedimentation basin and biofilter according to claim 1, its feature It is：The contact zone of dissolved air flotation passes through the cavitation air flotation return duct and the water outlet for being arranged on contact zone of dissolved air flotation side top respectively Mouth connection air flotation zone.

4. the sewage-treatment plant with cavitation air flotation sedimentation basin and biofilter according to claim 1, its feature It is：The side of the discharge bay connects tap water inlet pipe by the first solenoid valve, connects outlet pipe by second solenoid valve.

5. the sewage-treatment plant with cavitation air flotation sedimentation basin and biofilter according to claim 1, its feature It is：The waste water collection tank connects backwash water outlet pipe.

6. the sewage-treatment plant with cavitation air flotation sedimentation basin and biofilter according to claim 1, its feature It is：The quantity of several aeration plates is 5-30.

7. the sewage-treatment plant with cavitation air flotation sedimentation basin and biofilter according to claim 1, its feature It is：The quantity of several ABS filter caps is 6-30.