CN105645688A - Slaughter wastewater treatment complete device and slaughter wastewater treatment method - Google Patents
Slaughter wastewater treatment complete device and slaughter wastewater treatment method Download PDFInfo
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- CN105645688A CN105645688A CN201610061359.9A CN201610061359A CN105645688A CN 105645688 A CN105645688 A CN 105645688A CN 201610061359 A CN201610061359 A CN 201610061359A CN 105645688 A CN105645688 A CN 105645688A
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/24—Treatment of water, waste water, or sewage by flotation
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/40—Devices for separating or removing fatty or oily substances or similar floating material
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/50—Treatment of water, waste water, or sewage by addition or application of a germicide or by oligodynamic treatment
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/5236—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/22—Nature of the water, waste water, sewage or sludge to be treated from the processing of animals, e.g. poultry, fish, or parts thereof
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2301/00—General aspects of water treatment
- C02F2301/08—Multistage treatments, e.g. repetition of the same process step under different conditions
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/02—Aerobic processes
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/28—Anaerobic digestion processes
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Abstract
The invention discloses a slaughter wastewater treatment complete device and a method for treating wastewater through the device. The device comprises a water collecting basin, a first filtering basin, an oil separating basin, a second filter, a regulating basin, an air flotation device, an integrated biological treatment device and a dosing device. The technical principles of solid-liquid separation, hydrolytic acidification and aerobiotic treatment are adopted, and compared with slaughter wastewater treatment technologies such as a conventional biological method and a physical and chemical method, the device and the method have the advantages that the device can be combined and skid-mounted in a complete set mode, the equipment occupying area is small, the treatment efficiency is high, the one-time project investment is little, and the practicability is higher.
Description
Technical field
The present invention relates to a kind of wastewater treatment equipment, especially relate to a kind of slaughterhouse wastewater treatment complexes and the method utilizing described device to process waste water.
Background technology
Refuse in slaughtering process is based on high concentration organic compounds containing nitrogen, float and soluble solid thing, protein, oils and fats, containing pollutant such as substantial amounts of blood, oils and fats, minced meat, Pilus Sus domestica, the animal feed not digested, feces, silts in produced waste water, if slaughtering wastewater is without processing directly discharge, environmental health and human and livestock health be will result in very big harm, cause the significant wastage of water resource simultaneously. though Pilus Sus domestica, meat bits and the animal feed that do not digested broadly fall into can biodegradable organic pollutant, but after entrance biological treatment of waste water system, but it is need long time of staying can complete biodegradable, this does not require nothing more than process device enough volumes, can add the disposable input of large-engineering simultaneously, and animal wastes belong to the organic pollution of very easily biological-degradable class, after animal wastes enter biological treatment of waste water system, under the effect of enzyme, meeting natural decomposition, the content of organics in waste water is made to become big, such as COD and ammonia nitrogen, the generally predominantly organic thing CODcr 4000mg/L in the slaughtering wastewater of slaughterhouse discharge on the same day, ammonia nitrogen 200mg/L, without removing the animal wastes of easily biological-degradable in waste water in time, after animal wastes enter Waste Water Treatment, great change can be there is immediately in the predominantly organic thing in waste water, excursion: CODcr 4000--20000mg/L, ammonia nitrogen about 200--1200mg/L, organic concentration becomes after greatly, nature can increase the intractability of waste water, strengthen the volume of wastewater treatment structures, finally still can increase the disposable input of engineering.
Conventional slaughterhouse wastewater treatment technique is substantially the combined treatment process adopted with bioanalysis for main comprehensive physical and chemical treatment technology, the ripe technique of the group technology treatment effect used mainly have following have several:
(1) slaughtering wastewater �� preformed precipitate pond �� oil interceptor �� regulating reservoir �� elevator pump �� UASB anaerobic reactor �� SBR biological treatment device. Slaughtering wastewater is from flowing into preformed precipitate pond, then from flowing into oil interceptor, again from flowing into wastewater equalization pond after removing amount of grease, then pass through elevator pump waste water is delivered to UASB anaerobic reactor to carry out anaerobic biodegradation, slaughtering wastewater belongs to high concentrated organic wastewater, anaerobic treatment process is generally adopted to process slaughtering wastewater, the time of staying that waste water needs in UASB anaerobic reactor is approximately 72 hours, supernatant after anaerobic treatment carries out Aerobic biological process, then qualified discharge again from flowing into SBR biological treatment.Slaughtering wastewater processes process more than adopting, and from inlet water to outlet water, takes around the time of staying of 80 hours, just can make sewage disposal qualified discharge.
(2) slaughtering wastewater �� oil interceptor �� hydrolysis acidification regulating reservoir �� elevator pump �� UASB anaerobic reactor �� intermediate pool �� elevator pump �� defecator. Slaughtering wastewater is from flowing into oil interceptor, after removing amount of grease, flowing into hydrolysis acidification regulating reservoir carries out incomplete anaerobic bio-treated certainly again, then again through elevator pump, waste water is delivered to UASB anaerobic reactor and carry out anaerobic biodegradation, through the high concentrated organic wastewater that hydrolysis acidification processed, the time of staying needed in UASB anaerobic reactor is approximately 48 hours, supernatant after anaerobic treatment is from flowing into intermediate pool, then again through elevator pump, waste water is delivered to defecator to be filtered processing, then qualified discharge. Slaughtering wastewater processes process more than adopting, and from inlet water to outlet water, takes around the time of staying of 60 hours, just can make sewage disposal qualified discharge.
(3) slaughtering wastewater �� oil interceptor �� hydrolysis acidification regulating reservoir �� elevator pump �� bio-contact oxidation Aeration tank �� second pond �� sterilization pool. Slaughtering wastewater is from flowing into oil interceptor, after removing amount of grease, flowing into hydrolysis acidification regulating reservoir carries out incomplete anaerobic bio-treated certainly again, then again through elevator pump, waste water being delivered to bio-contact oxidation Aeration tank and carry out aerobic biodegradation, bio-contact oxidation Aeration tank supernatant is qualified discharge after precipitation, sterilization. Through the slaughtering wastewater that hydrolysis acidification processed, it is directly entered the waste strength after bio-contact oxidation Aeration tank still significantly high, organic concentration is CODcr about 2000mg/L, and the maximum volumetric loading design of bio-contact oxidation Aeration tank is typically in 1.0kgCODcr/m3/d, it is necessary to Aerobic biological process device---the volume of bio-contact oxidation Aeration tank is just relatively larger. Slaughtering wastewater processes process more than adopting, and engineering one-time investment is relatively larger, and operation energy consumption is higher, very uneconomical.
Summary of the invention
Disclosure one slaughterhouse wastewater treatment complexes, maximum compared with processing slaughtering wastewater technique with conventional bioanalysis, physico-chemical process etc. it is distinctive in that: whole process device can complete set combination skid, occupation area of equipment is little, treatment effeciency is high, engineering one-time investment is few, and practicality is higher.
For solving the problems referred to above, the slaughterhouse wastewater treatment complexes of the present invention include collecting-tank, the first filtering ponds, oil interceptor, the second filter, regulating reservoir, air-floating apparatus, integration biological treatment device, chemicals dosing plant, wherein: collecting-tank, the first filtering ponds, oil interceptor, regulating reservoir are positioned at sustained height, collecting-tank top side wall is provided with the outlet being connected with the first filtering ponds, and water outlet is provided with flow valve and stop valve, what be provided with in the first filtering ponds that the stainless steel filtering net of 100 orders is made can the soft flocks catcher of plug, oil interceptor is connected by the passage being provided with stop valve of bottom with the first filtering ponds, is provided with the first elevator pump that the waste water of bottom precipitation is drawn into the second filter in oil interceptor, second filter wall top is provided with water inlet, internal unsettled is provided with filtering bodies, sidewall bottom is provided with outlet, regulating reservoir includes first, second, the third and fourth 4 surge bunkers, isolate with wall between each surge bunker, wherein the outlet of the first surge bunker and the second filter is connected, it is provided with the second elevator pump inside 4th surge bunker, passage between first surge bunker and the second surge bunker is positioned at bottom wall, passage between second surge bunker and the 3rd surge bunker is positioned in the middle part of wall, passage between 3rd surge bunker and the 4th surge bunker is positioned at bottom wall, each passage place is provided with flow control valve, and be set to be sequentially reduced from the first surge bunker to the 4th surge bunker flow velocity, and each surge bunker top is provided with oil collecting pipe,Top, air-floating apparatus one end is provided with the water inlet being connected with the second elevator pump, and the other end sets the outlet being connected with integration biological treatment device, and top is additionally provided with sludge pipe; Being provided with a tube mixer in the connection line of water inlet and the second elevator pump, another water inlet of tube mixer is connected with chemicals dosing plant by the 3rd elevator pump; Chemicals dosing plant includes dog-house, stirring motor, rotating shaft, stirring vane, discharging opening, flocculant and flocculation aid and is put into by dog-house; Integration biological treatment device includes hydrolysis acidification groove, aerobic aeration groove, stillpot, disinfection trough successively, wherein hydrolysis acidification groove is connected with air-floating apparatus, incomplete anaerobic treatment is carried out in hydrolysis acidification groove, carry out Aerobic biological process in aerobic aeration groove, discharge after precipitation and sterilization afterwards.
Preferably, the rotating vane that filtering bodies includes rotating shaft, rotates around the shaft, wherein: rotating shaft lower end is internal is hollow, form the ducted body being connected with the outlet of the second filter; Rotating vane is positioned at the antetheca both sides hollow out inner hollow of direction of rotation front end and is internally provided with the filter element that polyolefin composition non-woven fabrics is formed, and forms collect cavity, be connected with the hollow part of rotating shaft lower end by hole bottom collect cavity between antetheca and rear wall.
Preferably, air-floating apparatus includes water inlet pipe, air buoyancy tank, collecting box, outlet valve, wherein: be provided with baffle plate between air buoyancy tank and collecting box, is provided with sludge pipe in collecting box, and height of baffle plate is less than the outer wall of air-floating apparatus.
Preferably, the flow set of air-floating apparatus is the inflow water yield more than outlet valve of water inlet pipe.
Preferably, the composition of flocculant and consumption are: polymer aluminium silicate 18.7 parts, PAFS 8.5 parts, PAFC 9 parts, polyferric chloride 7 parts.
Preferably, the sludge pipe of air-floating apparatus and the second filter connect.
Preferably, outlet pipe that hydrolysis acidification groove includes being located at water inlet pipe that bottom is connected with air-floating apparatus, be located at top is connected with aerobic aeration groove and Ni Chuan district from bottom to top, floating zone, microbial reaction district, place of Ni Chuan district is provided with mud mouth, is provided with the carrier for hydrolytic bacteria, acidification bacteria attachment and growth made with polyethylene in microbial reaction district.
Preferably, aerobic aeration groove includes: be located at water inlet pipe and the outlet pipe of top side wall, and the height of outlet pipe is lower than water inlet pipe; It is located at the aeration tube of bottom; Be located in water and multiple vertical separation film, first vertical separation film is fixedly connected on top board, only between base plate, position forms breach, second vertical separation film is fixedly connected on base plate, only between top board, position forms breach, other vertical separation film sets gradually, and is formed from water inlet pipe to the passage of outlet pipe.
Preferably, collecting-tank, the first filtering ponds, oil interceptor, the second filter, regulating reservoir, air-floating apparatus, integration biological treatment device, one or more for intermittent work in chemicals dosing plant.
The invention still further relates to a kind of method utilizing slaughterhouse wastewater treatment complete set of equipments to process slaughtering wastewater, including: waste water collected by (1) collecting-tank; Soft flocks catcher in (2) first filtering ponds filters the bigger materials such as Pilus Sus domestica, meat bits, the animal feed not digested and feces and carries out just worry; (3) in oil interceptor, wet goods float is separated from water; In (4) second filters, float is carried out secondary filter; (5) oil-water separation is carried out in regulating reservoir further and waste water quality is homogenizing; (6) add throwing flocculant in air-floating apparatus and flocculation aid forms floccule or scum layer, it is achieved solid-liquid separation;(7) hydrolysis acidification, Aerobic Process for Treatment, precipitation and sterilization it are sequentially carried out in integration biological treatment device; (8) discharge.
Feature for slaughtering wastewater, present invention employs directly to remove and waste water can not carry out quickly through Biochemical method technique biodegradable Pilus Sus domestica and meat bits, and the animal feed not digested and feces " soft flocks catcher ", can directly be completely separated out by the dry in waste water, not only reduce the influent concentration of waste water, improve again the biodegradability of waste water simultaneously, greatly reduce the volume required for subsequent biological treatment device, the volume making biological treatment device can reduce more than 50%, largely decrease waste water treatment engineering investment, simultaneously because before waste water enters biological treatment system, just the solid contents such as the Pilus Sus domestica in waste water, meat bits and the animal feed not digested, feces, silt are separated and reclaimed, simultaneously oils and fats and colourity on affect biological treatment system operation has carried out strenuous primary treatment again, significantly reduce the process load of subsequent biological treatment device, the significantly more efficient properly functioning treatment effect that improve again waste water having ensured sewage disposal system, and the present invention adopt " solid-liquid separation+hydrolysis acidification+aerobic " process, from inlet water to outlet water, it is only necessary to the time of staying sewage disposal less than 24 hours just can qualified discharge, substantially reduce the process time, improve treatment effeciency.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the first embodiment of the slaughterhouse wastewater treatment complexes of the present invention.
Fig. 2, Fig. 3 are the schematic diagrams of the filtering bodies of the second embodiment of the slaughterhouse wastewater treatment complexes of the present invention.
Fig. 4 is the schematic diagram of the air-floating apparatus of the 3rd embodiment of the slaughterhouse wastewater treatment complexes of the present invention.
Fig. 5 is the schematic diagram of the hydrolysis acidification groove of the 5th embodiment of the slaughterhouse wastewater treatment complexes of the present invention.
Fig. 6 is the schematic diagram of the aerobic aeration groove of the 5th embodiment of the slaughterhouse wastewater treatment complexes of the present invention.
Detailed description of the invention
Below in conjunction with accompanying drawing, embodiments of the invention are illustrated.
As shown in Figure 1, the first embodiment of the slaughterhouse wastewater treatment complexes of the present invention includes intermittent collecting-tank 1, first filtering ponds 2 of draining, oil interceptor the 3, second filter 4, regulating reservoir 5, air-floating apparatus 6, integration biological treatment device 7, chemicals dosing plant 8, wherein: collecting-tank the 1, first filtering ponds 2, oil interceptor 3, regulating reservoir 5 are positioned at sustained height
The waste water that slaughtering process produces collected by collecting-tank 1, top side wall is provided with the outlet 11 being connected with the first filtering ponds 2, waste water is through outlet 11 from flowing into the first filtering ponds 2, and outlet 11 place is provided with flow valve and stop valve, to controlling beating opening/closing and flow being adjusted of water outlet;
What be provided with in the first filtering ponds 2 that the stainless steel filtering net of 100 orders is made can the soft flocks catcher 21 of plug, soft flocks catcher 21 directly can intercept the materials such as Pilus Sus domestica, meat bits, the animal feed not digested and feces, waste water is carried out just worry, reduces the difficulty of waste strength and subsequent processes; Refuse landfill can be delivered to after the collecting material such as the Pilus Sus domestica being blocked and meat bits, the animal feed not digested and feces to reprocess;
Oil interceptor 3 is connected by the passage being provided with stop valve of bottom with the first filtering ponds 2, waste water through just considering is from flowing into oil interceptor 3, utilize float in waste water different with the proportion of water so as to separate, oil product is collected by oil collecting pipe after floating to the water surface, arranges the first elevator pump 31 that the waste water of bottom precipitation is drawn into the second filter 4 in oil interceptor 3;
Second filter 4 top side wall is provided with water inlet 41, internal unsettled is provided with filtering bodies 42, sidewall bottom is provided with outlet 43, the waste water extracted from oil interceptor 3 enters the second filter 4 from water inlet 41, naturally flows into regulating reservoir 5 after filtering bodies 42 filters from outlet 43;
Regulating reservoir 5 includes 4 surge bunkers of first, second, third and fourth, isolate with wall between each surge bunker, wherein the first surge bunker 51 is connected with the outlet 43 of the second filter 4, waste water after secondary filter flows into the first surge bunker 51 naturally, then the 4th surge bunker 54 is entered respectively through the passage of the wall being located between each surge bunker, 4th surge bunker 54 is internal is provided with the second elevator pump 55, extracts the waste water of bottom to air-floating apparatus 6; Passage between first surge bunker 51 and the second surge bunker 52 is positioned at bottom wall, passage between second surge bunker 52 and the 3rd surge bunker 53 is positioned in the middle part of wall, passage between 3rd surge bunker 53 and the 4th surge bunker 54 is positioned at bottom wall, each passage place is provided with flow control valve, and be set to be sequentially reduced from the first surge bunker to the 4th surge bunker flow velocity, exhausted water potential energy is made enough to exceed the height of passage, and each surge bunker top is provided with oil collecting pipe, the float collection of remaining after secondary filter is processed;
Top, air-floating apparatus 6 one end is provided with the water inlet being connected with the second elevator pump 55, the other end sets out the mouth of a river, processing the liquid after realizing solid-liquid separation through outlet from flowing into integration biological treatment device 7 through By Bubble-floating Method, the scum layer of separation or floccule are collected through sludge pipe and are discharged; Being provided with a tube mixer 81 in the connection line of water inlet and the second elevator pump 55, another water inlet of tube mixer 81 is connected with chemicals dosing plant 8 by the 3rd elevator pump 82;
Chemicals dosing plant 8 includes dog-house, stirring motor, rotating shaft, stirring vane, discharging opening, wherein flocculant and flocculation aid are put into by dog-house, under the effect of the stirring vane driven by stirring motor, flocculant and flocculation aid are sufficiently mixed so that it is can fully react after entering air-floating apparatus 6;
Integration biological treatment device 7 includes hydrolysis acidification groove 71, aerobic aeration groove 72, stillpot 73, disinfection trough 74 successively, wherein hydrolysis acidification groove 71 is connected with air-floating apparatus 6, incomplete anaerobic treatment is carried out in hydrolysis acidification groove, carry out Aerobic biological process in aerobic aeration groove 72, discharge after precipitation and sterilization afterwards.
As shown in Figure 2 and Figure 3, in the second embodiment of the present invention, filtering bodies 42 includes rotating shaft 421, around the shaft 421 rotating vane 422 rotated, wherein
Rotating shaft 421 lower end is internal is hollow, forms the ducted body 4211 being connected with outlet 43;
Rotating vane 422 is positioned at the antetheca 4221 both sides hollow out inner hollow of direction of rotation front end and is internally provided with the filter element that polyolefin composition non-woven fabrics is formed, form collect cavity 4223 between antetheca 4221 and rear wall 4222, be connected with the hollow part of rotating shaft 421 lower end by hole 4212 bottom collect cavity 4223; Filtering bodies 42 is at the second filter 4 internal rotating, and waste water enters collect cavity 4223 after antetheca 4221 filters, after enter ducted body 4211 through hole 4212, then enter regulating reservoir 5 through outlet 43.
As shown in Figure 4, in the third embodiment of the present invention, air-floating apparatus 6 includes water inlet pipe 61, air buoyancy tank 62, collecting box 63, outlet valve 64, is provided with baffle plate 65 between air buoyancy tank 62 and collecting box 63, being provided with sludge pipe 66 in collecting box 63, baffle plate 65 height is less than the outer wall of air-floating apparatus 6.Air-floating apparatus 6 can be set to intermittent draining, the waste water adding flocculant and flocculation aid enters air buoyancy tank 62 inside through water inlet pipe 61, now outlet valve 61 is closed, material in waste water forms proportion and is suspended in above waste water less than the floccule of water, when water level rises to the height of baffle plate 65 and continues to rise, under the effect of current, floccule enters collecting box 63 and discharges under the effect of sludge pipe 66; Opening outlet valve 64 after air supporting is sufficiently conducted, waste water enters integration biological treatment device 7. Certainly, outlet valve 64 also can be set to normally opened, and flow set is the inflow water yield more than outlet valve of water inlet pipe.
In the present embodiment, the composition of the flocculant used and consumption be: by weight, polymer aluminium silicate 18.7 parts, PAFS 8.5 parts, PAFC 9 parts, polyferric chloride 7 parts.
In the fourth embodiment of the present invention, the sludge pipe of air-floating apparatus and the second filter connect, and the floccule of collection reenters the second filter and is filtered.
As shown in Figure 5, in the fifth embodiment of the present invention, outlet pipe 712 that the hydrolysis acidification groove 71 of integration biological treatment device 7 includes being located at water inlet pipe 711 that bottom is connected with air-floating apparatus 6, be located at top is connected with aerobic aeration groove 72 and Ni Chuan district 713 from bottom to top, floating zone 714, microbial reaction district 715, place of Ni Chuan district 713 is provided with mud mouth (not shown), is provided with the carrier for hydrolytic bacteria, acidification bacteria attachment and growth made with polyethylene in microbial reaction district 715. In hydrolysis acidification groove, the Organic substance of difficult for biological degradation is changed into the Organic substance of easily biological-degradable, improves the biodegradability of waste water, be beneficial to follow-up Aerobic Process for Treatment.
As shown in Figure 6, in the fifth embodiment of the present invention, aerobic aeration groove 72 includes water inlet pipe and the outlet pipe of being located at top side wall, and the height of outlet pipe is lower than water inlet pipe, it is located at the aeration tube 721 of bottom, be located in water and multiple vertical separation film, first vertical separation film is fixedly connected on top board, only between base plate, position forms breach, second vertical separation film is fixedly connected on base plate, only between top board, position forms breach, and other vertical separation film sets gradually, and is formed from water inlet pipe to the passage of outlet pipe.
The method that above-mentioned slaughterhouse wastewater treatment complexes process waste water is utilized to include:
(1) waste water collected by collecting-tank;
Soft flocks catcher in (2) first filtering ponds filters the bigger materials such as Pilus Sus domestica, meat bits, the animal feed not digested and feces and carries out just worry, full through 0.5h the first filtering ponds water;
(3) in oil interceptor, waste water is stood 2h, make wet goods float increase, it is achieved with separating of water;
In (4) second filters, float being carried out secondary filter, the water in oil interceptor is extracted to the second filter by the first elevator pump in proper order, completes secondary filter after 2h;
(5) carry out oil-water separation in regulating reservoir further and waste water quality is homogenizing, complete this process through 1.5h;
(6) add throwing flocculant in air-floating apparatus and flocculation aid forms floccule or scum layer, after 2h, realize solid-liquid separation;
(7) hydrolysis acidification of 4h, the Aerobic Process for Treatment of 6h, the precipitation of 1.4h and disinfecting of 0.5h it are sequentially carried out in integration biological treatment device;
(8) discharge.
Said process only 19.9h consuming time, is greatly enhanced relative to prior art treatment effeciency, and after testing, in the water after process, the content of each material is as shown in table 1.
Table 1 pollutant discharge amount
| Pollutant | Content (mg/L) |
| Float | 51.2 |
| CODCR | 66.7 |
| Oil | 9.8 |
| Ammonia nitrogen | 12.6 |
| PH value | 6.5 |
Above in conjunction with accompanying drawing, the preferred embodiments of the disclosure and embodiment are explained in detail, but the present invention is not limited to the above-described embodiment and examples, in the ken that those skilled in the art possess, it is also possible to make various change without departing from the inventive concept of the premise.
Claims (10)
1. slaughterhouse wastewater treatment complexes, including collecting-tank, the first filtering ponds, oil interceptor, the second filter, regulating reservoir, air-floating apparatus, integration biological treatment device, chemicals dosing plant, wherein:
Collecting-tank, the first filtering ponds, oil interceptor, regulating reservoir are positioned at sustained height;
Collecting-tank top side wall is provided with the outlet being connected with the first filtering ponds, and water outlet is provided with flow valve and stop valve;
What be provided with in the first filtering ponds that the stainless steel filtering net of 100 orders is made can the soft flocks catcher of plug;
Oil interceptor is connected by the passage being provided with stop valve of bottom with the first filtering ponds, is provided with the first elevator pump that the waste water of bottom precipitation is drawn into the second filter in oil interceptor;
Second filter wall top is provided with water inlet, internal unsettled is provided with filtering bodies, sidewall bottom is provided with outlet;
Regulating reservoir includes first, second, the third and fourth 4 surge bunkers, isolate with wall between each surge bunker, wherein the outlet of the first surge bunker and the second filter is connected, it is provided with the second elevator pump inside 4th surge bunker, passage between first surge bunker and the second surge bunker is positioned at bottom wall, passage between second surge bunker and the 3rd surge bunker is positioned in the middle part of wall, passage between 3rd surge bunker and the 4th surge bunker is positioned at bottom wall, each passage place is provided with flow control valve, and be set to be sequentially reduced from the first surge bunker to the 4th surge bunker flow velocity, and each surge bunker top is provided with oil collecting pipe,
Top, air-floating apparatus one end is provided with the water inlet being connected with the second elevator pump, and the other end sets the outlet being connected with integration biological treatment device, and top is additionally provided with sludge pipe; Being provided with a tube mixer in the connection line of water inlet and the second elevator pump, another water inlet of tube mixer is connected with chemicals dosing plant by the 3rd elevator pump;
Chemicals dosing plant includes dog-house, stirring motor, rotating shaft, stirring vane, discharging opening, flocculant and flocculation aid and is put into by dog-house;
Integration biological treatment device includes hydrolysis acidification groove, aerobic aeration groove, stillpot, disinfection trough successively, wherein hydrolysis acidification groove is connected with air-floating apparatus, incomplete anaerobic treatment is carried out in hydrolysis acidification groove, carry out Aerobic biological process in aerobic aeration groove, discharge after precipitation and sterilization afterwards.
2. slaughterhouse wastewater treatment complexes according to claim 1, the rotating vane that wherein filtering bodies includes rotating shaft, rotates around the shaft, wherein:
Rotating shaft lower end is internal is hollow, forms the ducted body being connected with the outlet of the second filter;
Rotating vane is positioned at the antetheca both sides hollow out inner hollow of direction of rotation front end and is internally provided with the filter element that polyolefin composition non-woven fabrics is formed, and forms collect cavity, be connected with the hollow part of rotating shaft lower end by hole bottom collect cavity between antetheca and rear wall.
3. slaughterhouse wastewater treatment complexes according to claim 1, wherein air-floating apparatus includes water inlet pipe, air buoyancy tank, collecting box, outlet valve, wherein:
Being provided with baffle plate between air buoyancy tank and collecting box, be provided with sludge pipe in collecting box, height of baffle plate is less than the outer wall of air-floating apparatus.
4. slaughterhouse wastewater treatment complexes according to claim 3, wherein the flow set of air-floating apparatus is the inflow water yield more than outlet valve of water inlet pipe.
5. slaughterhouse wastewater treatment complexes according to claim 1, wherein the composition of flocculant and consumption are:
Polymer aluminium silicate 18.7 parts, PAFS 8.5 parts, PAFC 9 parts, polyferric chloride 7 parts.
6. slaughterhouse wastewater treatment complexes according to claim 1, wherein the sludge pipe of air-floating apparatus and the second filter connect.
7. slaughterhouse wastewater treatment complexes according to claim 1, wherein:
Outlet pipe that hydrolysis acidification groove includes being located at water inlet pipe that bottom is connected with air-floating apparatus, be located at top is connected with aerobic aeration groove and Ni Chuan district from bottom to top, floating zone, microbial reaction district, place of Ni Chuan district is provided with mud mouth, is provided with the carrier for hydrolytic bacteria, acidification bacteria attachment and growth made with polyethylene in microbial reaction district.
8. slaughterhouse wastewater treatment complexes according to claim 1, wherein aerobic aeration groove includes:
It is located at water inlet pipe and the outlet pipe of top side wall, and the height of outlet pipe is lower than water inlet pipe;
It is located at the aeration tube of bottom;
Be located in water and multiple vertical separation film, first vertical separation film is fixedly connected on top board, only between base plate, position forms breach, second vertical separation film is fixedly connected on base plate, only between top board, position forms breach, other vertical separation film sets gradually, and is formed from water inlet pipe to the passage of outlet pipe.
9. slaughterhouse wastewater treatment complexes according to claim 1, wherein collecting-tank, the first filtering ponds, oil interceptor, the second filter, regulating reservoir, air-floating apparatus, integration biological treatment device, one or more for intermittent work in chemicals dosing plant.
10. utilize the method that the slaughterhouse wastewater treatment complete set of equipments described in any of the above claim processes slaughtering wastewater, including:
(1) waste water collected by collecting-tank;
Soft flocks catcher in (2) first filtering ponds filters the bigger materials such as Pilus Sus domestica, meat bits, the animal feed not digested and feces and carries out just worry;
(3) in oil interceptor, wet goods float is separated from water;
In (4) second filters, float is carried out secondary filter;
(5) oil-water separation is carried out in regulating reservoir further and waste water quality is homogenizing;
(6) add throwing flocculant in air-floating apparatus and flocculation aid forms floccule or scum layer, it is achieved solid-liquid separation;
(7) hydrolysis acidification, Aerobic Process for Treatment, precipitation and sterilization it are sequentially carried out in integration biological treatment device;
(8) discharge.
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