CN106745911A - A kind of recycling processing method of livestock breeding wastewater - Google Patents

A kind of recycling processing method of livestock breeding wastewater Download PDF

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Publication number
CN106745911A
CN106745911A CN201710126768.7A CN201710126768A CN106745911A CN 106745911 A CN106745911 A CN 106745911A CN 201710126768 A CN201710126768 A CN 201710126768A CN 106745911 A CN106745911 A CN 106745911A
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CN
China
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frame
filter
solid
kettle
livestock breeding
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CN201710126768.7A
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Chinese (zh)
Inventor
张剑宇
佘卫民
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江苏隆昌化工有限公司
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Priority to CN201710126768.7A priority Critical patent/CN106745911A/en
Publication of CN106745911A publication Critical patent/CN106745911A/en

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    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F9/00Multistage treatment of water, waste water, or sewage
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/001Processes for the treatment of water whereby the filtration technique is of importance
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/28Treatment of water, waste water, or sewage by sorption
    • C02F1/281Treatment of water, waste water, or sewage by sorption using inorganic sorbents
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2103/00Nature of the water, waste water, sewage or sludge to be treated
    • C02F2103/20Nature of the water, waste water, sewage or sludge to be treated from animal husbandry
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2209/00Controlling or monitoring parameters in water treatment
    • C02F2209/08Chemical Oxygen Demand [COD]; Biological Oxygen Demand [BOD]
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2209/00Controlling or monitoring parameters in water treatment
    • C02F2209/14NH3-N

Abstract

The present invention relates to a kind of recycling processing method of livestock breeding wastewater, comprise the following steps:(1)Livestock and poultry farm excrement is collected using dry cleaning up excrement and separation of solid and liquid is carried out, solid manure and waste water is obtained;(2)By step(1)Waste water special taper reactor is entered by sewage draining passage, then to adding the hydrated calcium chloroaluminate to carry out adsorption treatment in special taper reactor, and stir 15 30min, stirring terminates rear natural subsidence, and separation of solid and liquid obtains the water after solid slag and treatment;(3)By step(1)Solid manure and step(2)Solid slag send into special wastewater treatment filter press and carry out press filtration, obtain solid and liquid, the solid after press filtration is through air-drying, shaping, with standby;(4)Step(2)Waste water and step after middle treatment(3)In liquid meet livestock breeding wastewater discharge standard, you can recycle.The advantage of the invention is that:The recycling processing method of livestock breeding wastewater of the present invention, facility investment is few, operating cost is low and being capable of efficient process livestock breeding wastewater.

Description

A kind of recycling processing method of livestock breeding wastewater
Technical field
The invention belongs to the field for the treatment of of water pollution of environmental project, at more particularly to a kind of resource of livestock breeding wastewater Reason method.
Background technology
Livestock and poultry farm waste water mainly includes urine, excrement and breeding house flushing water, and such concentration of organic wastewater is high, it COD is that 5000~13000mg/L, BOD are 5000~6000 mg/L(Water rushes excrement, similarly hereinafter), suspension is more, SS is 17000 ~20000mg/L, ammonia-nitrogen content is high, ammonia nitrogen is 600~1000 mg/L, and stink is big.Aquaculture waste water belongs to rich in a large amount of diseases The high concentrated organic wastewater of substance, is discharged directly into water body or storage place is improper, and water body is entered by rain-out, can The severe exacerbation of surface water or quality of groundwater can be caused.Because the leaching of Animal fecal pollution is very strong, nitrogen, phosphorus in fecaluria and The leaching such as water soluble organic substance are very big, if do not dealt carefully with, will enter water table by rainwash and diafiltration and pollute Underground water.Influence to surface water is then mainly shown as that after large amount of organic matter enters water body, the decomposition of organic matter will largely disappear Dissolved oxygen in water consumption, makes water body smelly;After the dissolved oxygen in water body significantly declines, large amount of organic matter can be in anaerobism bar Continue to decompose under part, the toxic gases such as methane, hydrogen sulfide will be produced in decomposition, cause aquatile mortality;In waste water A large amount of suspensions water body can be made muddy, reduce the photosynthesis of algae in water, limit the normal activity of aquatile, make to having The aquatile of machine thing pollution sensibility is gradually dead, so as to be further exacerbated by water bottom anoxic, makes the reduction of water body assimilative capacicy; Nitrogen, phosphorus can make the result of body eutrophication, eutrophication can make NO3-N and NO2-N excessive concentration, Ren Xuruo in water body Long-term drinking can cause poisoning, and the growth of some toxic algaes can discharge a large amount of toxin in water body with amount reproduction, cause The mortality of aquatic animal, so as to seriously destroy water ecology balance;Some germs, virus in fecaluria etc. are with water Flowing may cause some epiphytotics propagation etc..
The processing method to scale livestock and poultry farm liquid dung mainly has comprehensive utilization and the treatment major class of qualified discharge two both at home and abroad. Comprehensive utilization is that biomass energy utilizes, builds the ecological agriculture and ensure the good approach of agricultural sustainable development at many levels.But, At present because China's livestock and poultry farm feeding and management method falls behind, the not in place of the preceding Anaerobic Treatment of comprehensive utilization is added, often make animal dung Water produces many problems during comprehensive utilization, and such as waste water yield is big, complicated component, pollutant concentration is still very after treatment Dilution water high, used is more and is influenceed by seasonal duty.For processing qualified discharge, although the work used by both at home and abroad Skill flow is roughly the same, i.e. separation of solid and liquid-anaerobic digestion-Aerobic Process for Treatment.
Through retrieval, the B of patent CN 103274571 disclose the utilization of resources and the processing method of a kind of livestock breeding wastewater, Comprise the following steps:(1)Anaerobic digestion methane production;(2)Slagging-off;(3)BAF is biochemical;(4)Sterilization;(5)Organic fertilizer Manufacture.The present invention is combined based on anaerobic digestion methane production technology, BAF technologies, disinfection technology, is money with livestock breeding wastewater Source, is processed by anaerobic fermentation, produces biogas, and again through separation of solid and liquid, solid slag is used for conduct to the waste water after production biogas The raw material of organic fertilizer is produced, organic fertilizer is produced, waste water is utilized and qualified discharge by BAF technologies and sterilization Posterior circle again, High treating effect, energy consumption are low, and comprehensive utilization resource has economic benefit simultaneously.But, supporting for meagre profit operation is in for China Grow for industry, the investment too big, operating cost required for building such treatment for cow manure facility is too high.
Therefore, seek that facility investment is few, operating cost is low and process efficient cultivating wastewater purification method, it has also become solve The key point of aquaculture pollution.
The content of the invention
The technical problem to be solved in the present invention is to provide that a kind of facility investment is few, operating cost is low and being capable of efficient process poultry The recycling processing method of the livestock breeding wastewater of fowl breeding wastewater.
In order to solve the above technical problems, the technical scheme is that:A kind of recycling treatment side of livestock breeding wastewater Method, its special innovative point is:The recycling processing method is comprised the following steps:
(1)Livestock and poultry farm excrement is collected using dry cleaning up excrement and separation of solid and liquid is carried out, solid manure and waste water is obtained;
(2)By step(1)Waste water by sewage draining passage enter pretreatment system in special taper reactor, with 100 weight portions Waste water meter, then to adding the hydrated calcium chloroaluminate of 0.5~2wt% to carry out adsorption treatment in special taper reactor, and stir 15~30min, stirring terminates rear natural subsidence, and separation of solid and liquid obtains the water after solid slag and treatment;
(3)By step(2)Solid slag send into special wastewater treatment filter press and carry out press filtration, press filtration power is 20~25kw, press filtration Time is 20~30min, obtains solid and liquid, and the solid after press filtration is through air-drying, shaping, with standby;
(4)Step(2)Waste water and step after middle treatment(3)In liquid detected, if meet livestock breeding wastewater discharge Standard GB18596-2001, COD≤150mg/l, BOD≤400mg/l, ammonia nitrogen≤80mg/l, then recoverable.
Further, the step(2)In special taper reactor concrete structure be the special taper reactor bag Include a kettle, the kettle is a hollow cylindrical structure, and kettle upper and lower ends opening, have one to go out in the lower end of kettle Material mouth;
One upper cover, the upper cover is arranged on the upper end of kettle, and is hinged between kettle and forms, and the upper cover is in intercepting ball Shape, have on upper cover one with the charging aperture of kettle intracavity inter-connection and one with the charge door of kettle intracavity inter-connection, One charge pipe extended in kettle inner chamber is installed, the charge pipe is L-shaped at charge door, including one be vertically arranged it is perpendicular Straight-bar and it is hinged on the horizon bar of vertical bar bottom;
One low head, the low head is arranged on the lower end of kettle, and the low head has one and kettle in coniform on low head The discharge gate that intracoelomic cavity is connected, is provided with a marker pipe at the discharge gate, a row is gone back and be connected on the marker pipe Air pipe;
One stirring slurry, in the inner chamber that the stirring slurry is from top to bottom passed through and stretch into kettle from the medium position of upper cover vertically.
Further, the stirring slurry includes a puddler and the stirring blade on puddler, the stirring Paddle has several, is from top to bottom arranged on puddler successively.
Further, the step(3)In special wastewater treatment filter press concrete structure be the special wastewater treatment Filter press includes frame, thrust plate, filter frame, filter, longeron, pressure strip, oil cylinder, drying plate and control cabinet;The filtering The edge of plate is embedded in filter frame, and filter is in groove-like;The pressure strip is convex, matches with filter and merges insertion In the groove of filter, filter cloth is provided between filter and pressure strip;
The frame includes frame a and frame b, and the two ends of filter press are vertically arranged in respectively, and the top of frame a and frame b leads to Cross longeron to be connected, guide rail is provided with longeron, the top of filter frame is connected on guide rail by sliding block, and filter frame is along guide rail The movement of laying direction;
The thrust plate is parallel with frame, and positioned at the madial wall of frame, thrust plate has a pair, and one of thrust plate a is fixed On the frame a of side, thrust plate b is connected with oil cylinder, and oil cylinder promotes thrust plate in level perpendicular to frame b and through frame b Side moves up;
The drying plate has a pair both sides for being respectively placed in longeron, and drying plate is parallel with longeron, dries plate and control cabinet phase Even.
Further, it is in hold-down mechanism that the filter cooperates with pressure strip, is set between two adjacent hold-down mechanisms Dividing plate is equipped with, the top of dividing plate is connected on the guide rail of longeron by sliding block, and along the bearing of trend movement of guide rail.
Further, a filtrate receiver is equipped between the frame a and frame b, the liquid that will be isolated derives filtrate machine.
The advantage of the invention is that:
(1)The recycling processing method of livestock breeding wastewater of the present invention, processing equipment uses taper reactor and wastewater treatment pressure Filter, both equipment are common equipment, compared with biological oxidation facility, can greatly reduce facility investment;Meanwhile, the present invention Recycling processing method, by absorption, removes the pollution factor in livestock breeding wastewater using hydrated calcium chloroaluminate as adsorbent; By the adsorption treatment, the water after treatment meets livestock breeding wastewater discharge standard, recoverable, as flushing water, can Substantial amounts of water resource is saved, the operating cost of plant can be also reduced;Additionally, being only by the sludge quantity that the processing procedure is produced The 1/3 of traditional handicraft, main component is phosphorus calcium aluminate, can be used as soil conditioner, phosphorus fertilizer slow release agent, more can be used as heavy metal-polluted Contaminate agricultural land soil renovation agent, solve existing process sludge disposal difficulties, realize livestock breeding wastewater recycling treatment and Comprehensive utilization;
(2)The recycling processing method of livestock breeding wastewater of the present invention, wherein, special taper reactor is set by by charge pipe L-shaped shape, is adding hydrated calcium chloroaluminate, and rotatable charge pipe is so as to facilitate hydrated calcium chloroaluminate preferably mixed with excrement and urine water Reaction is closed, can also preferably be adjusted by adjusting the angle between horizon bar and vertical bar in addition;By setting for gas exhaust piping Put, in solid slag blocking pipeline, can be from gas exhaust piping to air is passed through in marker pipe to solve pipeline blockage phenomenon, very It is convenient;
By setting multiple stirring blades, preferably mix instead with hydrated calcium chloroaluminate also for excrement and urine water is enabled to Should;
(3)The recycling processing method of livestock breeding wastewater of the present invention, wherein, filter and pressure in special wastewater treatment filter press Use concave-convex type structure between tight plate so that solid slag is entirely located in filter, prevent solid slag during extruding to Outer seepage, improves the sealing of filter press, and press filtration effect is more preferable;
The drying plate of use heats up in pressure-filtering process to the environment of press filtration, solid slag is dried so that the water of solid slag Content is less than 2.5%, improves the efficiency of press filtering of filter press.
Brief description of the drawings
The present invention is further detailed explanation with reference to the accompanying drawings and detailed description.
Fig. 1 be livestock breeding wastewater of the present invention recycling processing method in special taper reactor structural representation.
Fig. 2 be livestock breeding wastewater of the present invention recycling processing method in special wastewater treatment filter press front view.
Fig. 3 be livestock breeding wastewater of the present invention recycling processing method in special wastewater treatment filter press side view.
Specific embodiment
The following examples can make professional and technical personnel that the present invention is more fully understood, but therefore not send out this It is bright to be limited among described scope of embodiments.
The recycling processing method of livestock breeding wastewater of the present invention, the special taper reactor of use, as shown in figure 1, bag Include kettle 5, upper cover 4, low head 6 and stirring slurry.
Kettle 5 be a hollow cylindrical structure, and kettle 5 upper and lower ends opening, the lower end of kettle 5 have one discharging Mouthful.
Upper cover 4 is arranged on the upper end of kettle 5, and is hinged between kettle 5 and forms, and upper cover 4 is in interception shape, in upper envelope There is the charging aperture 1 and one and the charge door 3 of the intracavity inter-connection of kettle 5 of one and the intracavity inter-connection of kettle 5 on first 4, feeding A charge pipe extended in kettle inner chamber is installed at mouthfuls 3, charge pipe is L-shaped, including a vertical bar 2 being vertically arranged with And it is hinged on the horizon bar 13 of the bottom of vertical bar 2.It is arranged to L shape by by charge pipe, is adding hydrated calcium chloroaluminate, can turns Dynamic charge pipe so as to facilitate hydrated calcium chloroaluminate preferably with excrement and urine water hybrid reaction, in addition can also be by adjusting horizon bar 13 Preferably adjusted with the angle between vertical bar 2 so that hydrated calcium chloroaluminate preferably mixes with excrement and urine water.
Low head 6 is arranged on the lower end of kettle 5, and low head 6 has one with the inner chamber of kettle 5 in coniform on low head 6 The discharge gate being connected, is provided with a marker pipe 10 at discharge gate, a gas exhaust piping is gone back and be connected on the marker pipe 10 7, a valve A8 is installed on gas exhaust piping 7, the lower section positioned at gas exhaust piping 7 on marker pipe 10 is also equipped with a valve B9.When solid slag blocks marker pipe 10, valve B9 can be closed, and open valve A8, by blast pipe, 7 in marker pipe 10 Air is passed through to solve the clogging of marker pipe 10, it is very convenient.
During stirring slurry is from top to bottom passed through and stretches into the inner chamber of kettle 5 from the medium position of upper cover 4 vertically, stirring slurry bag A puddler 12 and the stirring blade on puddler 12 11 are included, stirring blade 11 has several, from top to bottom arranges successively Cloth is on puddler 12.By setting multiple stirring blades 11, also for enabling to excrement and urine water and hydrated calcium chloroaluminate More preferable hybrid reaction.
The special wastewater treatment filter press for using, as shown in Figures 2 and 3, including frame 1,, thrust plate 2,, filter frame 3,, mistake Filter plate 4,, longeron 5,, pressure strip 6,, oil cylinder 7,, drying plate 8,With control cabinet 9,;The filter 4,Edge be embedded in filter frame Interior 3,, filter 4,In groove-like;The pressure strip 6,It is convex, with filter 4,Matching merging is embedded in filter 4,It is recessed In groove, filter 4,With pressure strip 6,Between be provided with filter cloth.
Frame 1,Including frame 11,With frame 12,, the two ends of filter press, frame 11 are vertically arranged in respectively,With frame 12, Top pass through longeron 5,It is connected, longeron 5,On be provided with guide rail 51,, filter frame 3,Top pass through sliding block 52,It is connected to guide rail 51,On, filter frame 3,Along guide rail 51,Laying direction movement.
Thrust plate 2,With frame 1,It is parallel, positioned at frame 1,Madial wall, thrust plate 2,Have a pair, one of thrust Plate 21,It is fixed on the frame 11 of side,On, thrust plate 22,With oil cylinder 7,It is connected, oil cylinder 7,Perpendicular to frame 12,And through frame 12,Thrust plate 2 is promoted, is moved in the horizontal direction.
Drying plate 8,Longeron 5 is respectively placed in a pair,Both sides, and drying plate 8,With longeron 5,It is parallel, dry plate 8,With Control cabinet 9,It is connected.
Filter 4,With pressure strip 6,It is in hold-down mechanism to cooperate, and dividing plate is provided between two adjacent hold-down mechanisms 10,, dividing plate 10,Top pass through sliding block 52,It is connected to longeron 5,Guide rail 51,On, and along guide rail 51,Bearing of trend move It is dynamic.
Frame 11,With frame 12,Between be equipped with a filtrate receiver 13,, the liquid derivation filtrate machine that will be isolated.
The operation principle of the special wastewater treatment filter press is:Solid slag is placed into filter 4,With pressure strip 6,It is engaged In the hold-down mechanism of formation, by oil cylinder 7,Drive thrust plate 2,And then extrude filter 4,Space between pressure strip so as to Solid slag is set to carry out solid and liquid phase separation, liquid is by filtrate receiver 13,Filter press is derived, by control cabinet 9,Open drying plate 8,, Solid is dried.
The recycling processing method of fowl breeding wastewater of the present invention, wherein, using hydrated calcium chloroaluminate as adsorbent, by Gap is adsorbed, the pollution factor in removal livestock breeding wastewater, and hydrated calcium chloroaluminate is a kind of bimetallic lamellar compound, internal many Hole, specific surface area is big, and its laminate is constructed by strong chemical bond, and the weak bond that interlayer only has easy replacement interacts, this special knot Configuration formula makes it have very strong ion-exchange capacity, and the substitutability of its laminate intermediate ion is determined to nitrogen, phosphorus and a huge sum of money Category is respectively provided with very strong suction-operated, and high temperature resistant, low cost, easily prepares and bioavailable;And processing procedure is not sent out Biochemical reaction, produces without waste gas.And the chlorion for being substituted has disinfective action, it is not required to add other medicaments.
The recycling processing method of livestock breeding wastewater of the present invention, comprises the following steps:
(1)Livestock and poultry farm excrement is collected using dry cleaning up excrement and separation of solid and liquid is carried out, solid manure and waste water is obtained;
(2)By step(1)Waste water by sewage draining passage enter pretreatment system in special taper reactor, with 100 weight portions Waste water meter, then by charge door 3 in special taper reactor add 0.5~2wt% hydrated calcium chloroaluminate adsorbed Treatment, and 15~30min is stirred, stirring terminates rear natural subsidence, and separation of solid and liquid obtains the water after solid slag and treatment;
(3)By step(2)Solid slag send into filter 4 in special wastewater treatment filter press,Press filtration is carried out, press filtration power is 20 ~25kw, time of filter pressing is 20~30min, obtains solid and liquid, and the solid after press filtration is through air-drying, shaping, with standby;
(4)Step(2)Waste water and step after middle treatment(3)In liquid detected, if meet livestock breeding wastewater discharge Standard GB18596-2001, COD≤150mg/l, BOD≤400mg/l, ammonia nitrogen≤80mg/l, then recoverable.
In order to compare hydrated calcium chloroaluminate Different adding amount to removing the influence of breeding wastewater, 300ml cultivation is taken respectively useless Water is fitted into 4 500ml beakers, respectively the calcium chloroaluminate of addition 0.5%, 1%, 1.5%, 2%, natural subsidence after stirring 30 minutes, Supernatant surveys pH value, COD, ammonia nitrogen, and it the results are shown in Table 1.
Influence of the hydrated calcium chloroaluminate Different adding amount of table 1 to removal breeding wastewater
Addition (%) 0.5 1 1.5 2
pH 7 7 7 7
COD(mg/l) 121 115 107 98
Ammonia nitrogen (mg/l) 75 69 54 42
As can be seen from the above table, 2% hydrated calcium chloroaluminate, natural subsidence after stirring 30 minutes, place are added in above-mentioned breeding wastewater Reason best results.
By the screening of multiple reaction condition, and effect and the principle of Green Chemistry in view of reaction, preferably, step Suddenly(2)In mixing time be 30min, step(3)Middle press filtration power is 21kw, and time of filter pressing is 20min, livestock breeding wastewater Treatment effect is best.
Citing and explanation in detail are carried out to the recycling processing method of the livestock breeding wastewater by following examples below:
Embodiment 1
The present embodiment is the recycling processing method of 500 ton per day livestock breeding wastewaters, is comprised the following steps:
(1)Livestock and poultry farm excrement is collected using dry cleaning up excrement and separation of solid and liquid is carried out, solid manure and waste water is obtained;Described fowl Breeding wastewater water quality index is as shown in table 2 after measured.
The water quality index of the livestock breeding wastewater of table 2
Item controlled pH COD(mg/l) Ammonia nitrogen (mg/l)
Measured value 5.2 1070 950
(2)By step(1)Waste water by sewage draining passage enter pretreatment system in special taper reactor, with 100 weight portions Waste water meter, then by charge door 3 in special taper reactor add 2wt% hydrated calcium chloroaluminate carry out adsorption treatment, And 30min is stirred, stirring terminates rear natural subsidence, and separation of solid and liquid obtains the water after solid slag and treatment;
The water quality index of livestock breeding wastewater after the adsorption treatment of table 3
Item controlled pH COD(mg/l) Ammonia nitrogen (mg/l)
Measured value 7 98 42
(3)By step(2)Solid slag send into filter 4 in special wastewater treatment filter press,Press filtration is carried out, press filtration power is 21kw, time of filter pressing is 20min, obtains solid and liquid, and the solid after press filtration is through air-drying, shaping, with standby;
The water quality index of livestock breeding wastewater after the press filtration of table 4 treatment
Item controlled pH COD(mg/l) Ammonia nitrogen (mg/l)
Measured value 7 96 40
(4)From table 3 and table 4, step(2)Waste water and step after middle treatment(3)In liquid meet livestock breeding wastewater Discharge standard GB18596-2001, COD≤150mg/l, BOD≤400mg/l, ammonia nitrogen≤80mg/l, recoverable.
Embodiment 2
The present embodiment is the recycling processing method of 1200 ton per day livestock breeding wastewaters, is comprised the following steps:
(1)Livestock and poultry farm excrement is collected using dry cleaning up excrement and separation of solid and liquid is carried out, solid manure and waste water is obtained;Described fowl Breeding wastewater water quality index is as shown in table 5 after measured.
The water quality index of the livestock breeding wastewater of table 5
Item controlled pH COD(mg/l) Ammonia nitrogen (mg/l)
Measured value 4.8 1130 920
(2)By step(1)Waste water by sewage draining passage enter pretreatment system in special taper reactor, with 100 weight portions Waste water meter, then by charge door 3 in special taper reactor add 2wt% hydrated calcium chloroaluminate carry out adsorption treatment, And 30min is stirred, stirring terminates rear natural subsidence, and separation of solid and liquid obtains the water after solid slag and treatment;
The water quality index of livestock breeding wastewater after the adsorption treatment of table 6
Item controlled pH COD(mg/l) Ammonia nitrogen (mg/l)
Measured value 7 96 40
(3)By step(2)Solid slag send into filter 4 in special wastewater treatment filter press,Press filtration is carried out, press filtration power is 21kw, time of filter pressing is 20min, obtains solid and liquid, and the solid after press filtration is through air-drying, shaping, with standby;
The water quality index of livestock breeding wastewater after the press filtration of table 7 treatment
Item controlled pH COD(mg/l) Ammonia nitrogen (mg/l)
Measured value 7 94 38
(4)From table 6 and table 7, step(2)Waste water and step after middle treatment(3)In liquid meet livestock breeding wastewater Discharge standard GB18596-2001, COD≤150mg/l, BOD≤400mg/l, ammonia nitrogen≤80mg/l, recoverable.
Embodiment 3
The present embodiment is the recycling processing method of 2000 ton per day livestock breeding wastewaters, is comprised the following steps:
(1)Livestock and poultry farm excrement is collected using dry cleaning up excrement and separation of solid and liquid is carried out, solid manure and waste water is obtained;Described fowl Breeding wastewater water quality index is as shown in table 8 after measured.
The water quality index of the livestock breeding wastewater of table 8
Item controlled pH COD(mg/l) Ammonia nitrogen (mg/l)
Measured value 5.6 980 850
(2)By step(1)Waste water by sewage draining passage enter pretreatment system in special taper reactor, with 100 weight portions Waste water meter, then by charge door 3 in special taper reactor add 2wt% hydrated calcium chloroaluminate carry out adsorption treatment, And 30min is stirred, stirring terminates rear natural subsidence, and separation of solid and liquid obtains the water after solid slag and treatment;
The water quality index of livestock breeding wastewater after the adsorption treatment of table 9
Item controlled pH COD(mg/l) Ammonia nitrogen (mg/l)
Measured value 7 94 40
(3)By step(2)Solid slag send into filter 4 in special wastewater treatment filter press,Press filtration is carried out, press filtration power is 21kw, time of filter pressing is 20min, obtains solid and liquid, and the solid after press filtration is through air-drying, shaping, with standby;
The water quality index of livestock breeding wastewater after the press filtration of table 10 treatment
Item controlled pH COD(mg/l) Ammonia nitrogen (mg/l)
Measured value 7 92 38
(4)From table 9 and table 10, step(2)Waste water and step after middle treatment(3)In liquid meet livestock breeding wastewater Discharge standard GB18596-2001, COD≤150mg/l, BOD≤400mg/l, ammonia nitrogen≤80mg/l, recoverable.
General principle of the invention and principal character and advantages of the present invention has been shown and described above.The skill of the industry Art personnel it should be appreciated that the present invention is not limited to the above embodiments, the simply explanation described in above-described embodiment and specification Principle of the invention, without departing from the spirit and scope of the present invention, various changes and modifications of the present invention are possible, these Changes and improvements all fall within the protetion scope of the claimed invention.The claimed scope of the invention by appending claims and Its equivalent thereof.

Claims (6)

1. a kind of recycling processing method of livestock breeding wastewater, it is characterised in that:The recycling processing method includes following Step:
Livestock and poultry farm excrement is collected using dry cleaning up excrement and separation of solid and liquid is carried out, solid manure and waste water is obtained;
By step(1)The special taper reactor that is entered in pretreatment system by sewage draining passage of waste water, with the useless of 100 weight portions Water meter, then to adding the hydrated calcium chloroaluminate of 0.5~2wt% to carry out adsorption treatment in special taper reactor, and stir 15~ 30min, stirring terminates rear natural subsidence, and separation of solid and liquid obtains the water after solid slag and treatment;
By step(2)Solid slag send into special wastewater treatment filter press and carry out press filtration, press filtration power is 20~25kw, time of filter pressing It is 20~30min, obtains solid and liquid, the solid after press filtration is through air-drying, shaping, with standby;
Step(2)Waste water and step after middle treatment(3)In liquid detected, if meeting livestock breeding wastewater discharge standard GB18596-2001, COD≤150mg/l, BOD≤400mg/l, ammonia nitrogen≤80mg/l, then recoverable.
2. the recycling processing method of livestock breeding wastewater according to claim 1, it is characterised in that:The step(2) In special taper reactor concrete structure for described special
Taper reactor include a kettle, the kettle be a hollow cylindrical structure, and kettle upper and lower ends opening, in kettle The lower end of body has a discharging opening;
One upper cover, the upper cover is arranged on the upper end of kettle, and is hinged between kettle and forms, and the upper cover is in intercepting ball Shape, have on upper cover one with the charging aperture of kettle intracavity inter-connection and one with the charge door of kettle intracavity inter-connection, One charge pipe extended in kettle inner chamber is installed, the charge pipe is L-shaped at charge door, including one be vertically arranged it is perpendicular Straight-bar and it is hinged on the horizon bar of vertical bar bottom;
One low head, the low head is arranged on the lower end of kettle, and the low head has one and kettle in coniform on low head The discharge gate that intracoelomic cavity is connected, is provided with a marker pipe at the discharge gate, a row is gone back and be connected on the marker pipe Air pipe;
One stirring slurry, in the inner chamber that the stirring slurry is from top to bottom passed through and stretch into kettle from the medium position of upper cover vertically.
3. the recycling processing method of livestock breeding wastewater according to claim 2, it is characterised in that:The stirring slurry bag A puddler and the stirring blade on puddler are included, the stirring blade has several, is from top to bottom arranged in successively On puddler.
4. the recycling processing method of livestock breeding wastewater according to claim 1, it is characterised in that:The step(3) In special wastewater treatment filter press concrete structure for the special wastewater treatment filter press include frame, thrust plate, filter frame, Filter, longeron, pressure strip, oil cylinder, drying plate and control cabinet;The edge of the filter is embedded in filter frame, filter In groove-like;The pressure strip is convex, matches with filter and merges and be embedded in the groove of filter, filter and compression Filter cloth is provided between plate;
The frame includes frame a and frame b, and the two ends of filter press are vertically arranged in respectively, and the top of frame a and frame b leads to Cross longeron to be connected, guide rail is provided with longeron, the top of filter frame is connected on guide rail by sliding block, and filter frame is along guide rail The movement of laying direction;
The thrust plate is parallel with frame, and positioned at the madial wall of frame, thrust plate has a pair, and one of thrust plate a is fixed On the frame a of side, thrust plate b is connected with oil cylinder, and oil cylinder promotes thrust plate in level perpendicular to frame b and through frame b Side moves up;
The drying plate has a pair both sides for being respectively placed in longeron, and drying plate is parallel with longeron, dries plate and control cabinet phase Even.
5. the recycling processing method of livestock breeding wastewater according to claim 4, it is characterised in that:The filter with It is in hold-down mechanism that pressure strip cooperates, and dividing plate is provided between two adjacent hold-down mechanisms, and the top of dividing plate is connected by sliding block It is connected on the guide rail of longeron, and along the bearing of trend movement of guide rail.
6. the recycling processing method of livestock breeding wastewater according to claim 4, it is characterised in that:The frame a with A filtrate receiver is equipped between frame b, the liquid that will be isolated derives filtrate machine.
CN201710126768.7A 2017-03-06 2017-03-06 A kind of recycling processing method of livestock breeding wastewater CN106745911A (en)

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CN108218481A (en) * 2018-03-09 2018-06-29 南通华多种猪繁育有限公司 A kind of harmless processing of large-scale pig farm biogas residue and utilization of resources technique
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CN104030252A (en) * 2014-06-18 2014-09-10 江苏隆昌化工有限公司 Synthesis of sustained-release fertilizer by resource utilization of phosphorus wastewater
CN204474506U (en) * 2015-03-11 2015-07-15 韩哲 A kind of livestock breeding wastewater treatment unit
CN205699645U (en) * 2016-05-05 2016-11-23 江苏隆昌化工有限公司 A kind of heavy metal containing wastewater treatment pressure filter
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CN103288303A (en) * 2013-06-27 2013-09-11 波鹰(厦门)科技有限公司 Livestock/poultry breeding wastewater resource utilization and regeneration recycling method
CN104030252A (en) * 2014-06-18 2014-09-10 江苏隆昌化工有限公司 Synthesis of sustained-release fertilizer by resource utilization of phosphorus wastewater
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