CN207811508U - A kind of advanced treatment system of high concentration large scale of pig farm waste water - Google Patents

Abstract

The utility model is related to a kind of advanced treatment systems of high concentration large scale of pig farm waste water comprising sequentially connected grille well, solid-liquid separating machine, up-flow Solid anaerobic reactor, acid-base accommodation pond, primary sedimentation tank, anaerobic baffled reactor, coagulative precipitation tank；The advanced treatment system further includes the ponds level-one A/O, secondary settling tank, the ponds two level A/O, MBR membrane filters, Fenton reaction tanks, sterilization pool and sludge-tank；The coagulative precipitation tank, the sludge-tank and the secondary settling tank are connected with the ponds the level-one A/O respectively, the sludge-tank and secondary settling tank are connected with the ponds the two level A/O respectively, the MBR membrane filters are connected with the secondary settling tank, the Fenton reaction tanks are connected with the MBR membrane filters, and the sterilization pool is connected with the Fenton reaction tanks.Pig waste water can greatly reduce the concentration of organic matter in pig waste water, ammonia nitrogen, suspended solid after advanced treatment system processing, avoid pollution of the pig waste water to environment.

Description

A kind of advanced treatment system of high concentration large scale of pig farm waste water

Technical field

The utility model is related to Pig raising wastewater process fields, more particularly to a kind of depth of high concentration large scale of pig farm waste water Spend processing system.

Background technology

Large scale of pig farm waste water has the characteristics that organic matter, ammonia nitrogen, suspended sediment concentration are high, and pollutional load is very high, and Containing a large amount of pathogen, prodigious pollution can be caused to environment by being directly discharged into river, therefore, effectively be controlled such pig waste water Reason is very necessary.

Currently, although national standard is pressed in the pig waste water disposal facility water outlet of most of pig farm《Livestock and poultry breeding industry pollutant is arranged Put standard》(GB18596-2001) requirement is designed, but it is still higher to go out water pollutant index, cannot meet country《Sewage Comprehensive discharge standard》(GB8978-1996) the second pollutant highest in allows I grade of standard in concentration of emission, still right Ecological environment causes prodigious influence.

It solves the above problems therefore, it is necessary to design a kind of advanced treatment system of high concentration large scale of pig farm waste water.

Utility model content

The purpose of this utility model is to provide a kind of advanced treatment systems of high concentration large scale of pig farm waste water, to solve The problems mentioned above in the background art.

To achieve the above object, the utility model adopts the following technical solution：A kind of high concentration large scale of pig farm waste water Advanced treatment system comprising sequentially connected grille well, solid-liquid separating machine, up-flow Solid anaerobic reactor, acid-base accommodation Pond, primary sedimentation tank, anaerobic baffled reactor, coagulative precipitation tank；The advanced treatment system further include the ponds level-one A/O, secondary settling tank, The ponds two level A/O, MBR membrane filters, Fenton reaction tanks, sterilization pool and sludge-tank；The coagulative precipitation tank, the sludge-tank and The secondary settling tank is connected with the ponds the level-one A/O respectively, and the sludge-tank and secondary settling tank are connected with the ponds the two level A/O respectively It connecing, the MBR membrane filters are connected with the secondary settling tank, and the Fenton reaction tanks are connected with the MBR membrane filters, The sterilization pool is connected with the Fenton reaction tanks.

Further, the grid gap of the grille well is 5mm.

Further, it is equipped with blender in the regulating reservoir, the blender is accelerating the reaction in the regulating reservoir.

Further, the reactant in the Fenton reaction tanks includes hydrogen peroxide solution, liquid caustic soda, ferrous sulfate solution and PAM solution.

Further, the thimerosal in the sterilization pool is liquor natrii hypochloritis.

Further, add flexible filler in the ponds the two level A/O.

The beneficial effects of the utility model are：Pig raising wastewater can greatly reduce foster after advanced treatment system processing The concentration of organic matter, ammonia nitrogen, suspended solid in pig waste water, can also eliminate the pathogen in Pig raising wastewater, in processing procedure The by-product of generation can be used for the compost of crops, the problem of efficiently solving Pig raising wastewater environmental pollution, and meet state The discharge standard that family formulates.

Description of the drawings

The utility model is described in further detail for attached drawing, but the embodiment in attached drawing is not constituted to any of the utility model Limitation.

Fig. 1 is the structural schematic diagram that one embodiment of the utility model provides.

Specific implementation mode

As shown in fig. 1, a kind of depth for high concentration large scale of pig farm waste water that one embodiment of the utility model provides Reason system comprising sequentially connected grille well 1, solid-liquid separating machine 2, up-flow Solid anaerobic reactor 3, acid-base accommodation pond 4, Primary sedimentation tank 5, anaerobic baffled reactor 6, coagulative precipitation tank 7；The advanced treatment system further includes the ponds level-one A/O 8, secondary settling tank 9, the ponds two level A/O 11, MBR membrane filters 12, Fenton reaction tanks 13, sterilization pool 14 and sludge-tank 10；The coagulative precipitation tank 7, the sludge-tank 10 and the secondary settling tank 9 are connected with the ponds the level-one A/O 8 respectively, and the sludge-tank 10 and secondary settling tank 9 divide It is not connected with the ponds the two level A/O 11, the MBR membrane filters 12 are connected with the secondary settling tank 9, the Fenton reactions Pond 13 is connected with the MBR membrane filters 12, and the sterilization pool 14 is connected with the Fenton reaction tanks 13.The grid The grid gap of well 1 is 5mm, can effectively open bulky grain solid barrier, bulky grain solid is avoided to block each reaction tank Between pipeline.It is equipped with blender in the regulating reservoir, the blender is accelerating the reaction in the regulating reservoir.

As shown in fig. 1, in actual mechanical process, Pig raising wastewater first passes through 1 coarse filtration of the grille well, first excludes big The solid of particle, filtered Pig raising wastewater are transported to the solid-liquid separating machine 2 and are separated by solid-liquid separation again, and the dry slag after separation carries out Compost treatment, remaining Pig raising wastewater introduce the up-flow Solid anaerobic reactor 3 and carry out Anaerobic Treatment；Pig raising wastewater enters It in the up-flow Solid anaerobic reactor 3, contacts, raises pigs with the activated sludge in the up-flow Solid anaerobic reactor 3 Waste water obtains rapid digestion, and indigested organic solid particles and methane fermentating microorganism are stranded in digester by natural subsidence Interior, supernatant is overflowed from 3 top of up-flow Solid anaerobic reactor；The supernatant of spilling is discharged into the acid-base accommodation pond 4 It is interior, it adds NaOH solution and starts blender stirring, the pH value in the acid-base accommodation pond 4 is adjusted to 6.5~7.5；Then will Liquid after overregulating introduces the primary sedimentation tank 5 and carries out primary deposition, waits and again introduces the liquid in sedimentation basin after having precipitated The anaerobic baffled reactor 6 carries out secondary Anaerobic Treatment, and the secondary Anaerobic Treatment time is about 22 hours；Detest by secondary Oxygen treated Pig raising wastewater introduces the coagulative precipitation tank 7 and is precipitated, and the sedimentation time is about 0.5 hour；Deng having precipitated The liquid in the coagulative precipitation tank 7 is introduced in the ponds the level-one A/O 8 again afterwards, starts air blower to the ponds the level-one A/O 8 It is aerated, aeration quantity promotes the biochemical reaction in the ponds the level-one A/O 8 to be 20~30L；Supporting after biochemical treatment is complete Pig waste water introduces the secondary settling tank 9 and carries out precipitation process, and the partial sludge in the secondary settling tank 9 is then back to the level-one A/ The ponds O 8, remaining sludge drain into the sludge-tank 10；Then the Pig raising wastewater of secondary settling tank 9 is introduced in the ponds the two level A/O 11 And elastic filler is added, the same air blower that starts is aerated the ponds the two level A/O 11, and aeration quantity promotees to be 20~30L Biochemical reaction into the ponds the two level A/O 11；Pig raising wastewater after biochemical treatment is complete introduces the secondary settling tank 9 and carries out place of settling Reason, and the partial sludge in the secondary settling tank 9 is then back to the ponds the two level A/O 11, remaining sludge drains into the sludge-tank 10；Next the Pig raising wastewater in the secondary settling tank 9 is introduced the MBR membrane filters 12 and carries out depth-type filtration processing, passed through Pig raising wastewater after MBR membrane filtrations introduces in the Fenton reaction tanks 13 and to pour into hydrogen peroxide solution, liquid caustic soda, ferrous sulfate molten Liquid and PAM solution carry out advanced oxidation；Finally the Pig raising wastewater aoxidized is introduced in the sterilization pool 14 and hypochlorous acid is added Sodium solution carries out disinfection.Pig raising wastewater can greatly reduce organic in Pig raising wastewater after advanced treatment system processing The concentration of object, ammonia nitrogen, suspended solid can also eliminate the pathogen in Pig raising wastewater, and the by-product generated in processing procedure is also The problem of capable of being used for the compost of crops, efficiently solving Pig raising wastewater environmental pollution, and meet the discharge mark of country's formulation It is accurate.

Each technical characteristic of embodiment described above can be combined arbitrarily, to keep description succinct, not to above-mentioned reality It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited In contradiction, it is all considered to be the range of this specification record.

Above-described embodiments merely represent several embodiments of the utility model, the description thereof is more specific and detailed, But therefore it can not be interpreted as the limitation to utility model patent range.It should be pointed out that for the common skill of this field For art personnel, without departing from the concept of the premise utility, various modifications and improvements can be made, these are belonged to The scope of protection of the utility model.Therefore, the protection domain of the utility model patent should be determined by the appended claims.

Claims (6)

1. a kind of advanced treatment system of high concentration large scale of pig farm waste water, it is characterised in that including sequentially connected grille well, Solid-liquid separating machine, up-flow Solid anaerobic reactor, acid-base accommodation pond, primary sedimentation tank, anaerobic baffled reactor, coagulating sedimentation Pond；The advanced treatment system further include the ponds level-one A/O, secondary settling tank, the ponds two level A/O, MBR membrane filters, Fenton reaction tanks, Sterilization pool and sludge-tank；The coagulative precipitation tank, the sludge-tank and the secondary settling tank are connected with the ponds the level-one A/O respectively It connects, the sludge-tank and the secondary settling tank are connected with the ponds the two level A/O respectively, and the MBR membrane filters are heavy with described two Pond is connected, and the Fenton reaction tanks are connected with the MBR membrane filters, the sterilization pool and the Fenton reaction tanks It is connected.

2. the advanced treatment system of high concentration large scale of pig farm waste water according to claim 1, it is characterised in that：The lattice The grid gap of grid well is 5mm.

3. the advanced treatment system of high concentration large scale of pig farm waste water according to claim 1, it is characterised in that：The tune It saves and is equipped with blender in pond.

4. the advanced treatment system of high concentration large scale of pig farm waste water according to claim 1, it is characterised in that：It is described Reactant in Fenton reaction tanks includes hydrogen peroxide solution, liquid caustic soda, ferrous sulfate solution and PAM solution.

5. the advanced treatment system of high concentration large scale of pig farm waste water according to claim 1, it is characterised in that：It is described to disappear Thimerosal in malicious pond is liquor natrii hypochloritis.

6. the advanced treatment system of high concentration large scale of pig farm waste water according to claim 1, it is characterised in that：Described two Grade A/O adds flexible filler in pond.