CN213012486U

CN213012486U - Slaughter wastewater treatment device

Info

Publication number: CN213012486U
Application number: CN202021657801.2U
Authority: CN
Inventors: 钟裕林; 钟裕辉
Original assignee: Shenzhen Haotianyuan Environmental Protection Tech Co ltd
Current assignee: Shenzhen Haotianyuan Environmental Protection Tech Co ltd
Priority date: 2020-08-11
Filing date: 2020-08-11
Publication date: 2021-04-20
Anticipated expiration: 2030-08-11

Abstract

The utility model provides a slaughter effluent treatment plant, including the super little formula grid that circles round, equalizing basin, air supporting machine, anaerobism pond, facultative tank, good oxygen pond, sedimentation tank, the disinfection pond that sets gradually, facultative tank with good oxygen pond still is connected with an aeration systems, be equipped with the impeller in the equalizing basin, the equalizing basin through a elevator pump with the air supporting machine is connected. Above-mentioned slaughtering wastewater treatment device filters short and small thin hair class through super little convolution grid, then adds ozone in the equalizing basin and disinfects, deodorizes, and application air supporting machine carries out the materialization and handles, gets rid of the grease in the waste water, considers the ammonia nitrogen value height in the sewage, throws phosphate and magnesium salt simultaneously, forms phosphorus ammonia magnesium sediment, then gets into anaerobism pond, facultative tank, aerobic tank, sedimentation tank and just biochemical treatment for all indexes of the sewage journey after the processing reach standard.

Description

Slaughter wastewater treatment device

Technical Field

The utility model relates to a waste water treatment technical field, in particular to slaughter effluent treatment plant.

Background

With the continuous improvement of living standard of people and the increase of food consumption of various animals, the quantity of the slaughtered chicken, duck, pig, cattle, sheep and the like is increased, the quantity of the generated waste water is large, the slaughtered waste water contains a large amount of blood pollutants, hair, broken bone and meat, foot shells, waste internal organs and other pollutants, the concentration of suspended matters is high, water is reddish brown and has obvious fishy smell, the slaughtered waste water is typical high-suspended organic waste water which is easy to biodegrade, and the waste water is rich in protein and oil and has high salt content. The discharged wastewater contains a large amount of pollutants such as organic matters, solid suspended matters, ammonia nitrogen and the like, and if the discharged wastewater is directly discharged into a natural water body without treatment, a large amount of dissolved oxygen in the water can be consumed, so that the water body is blackened, the eutrophication of the water body is generated, and meanwhile, a large amount of suspended matters can block a pipeline, and the ecological environment of the water body is seriously damaged.

The existing slaughter wastewater has the characteristics of high oil quality, chemical oxygen demand and ammonia nitrogen in water, and the peculiar smell of the wastewater discharged by the equalizing tank is large, so that secondary pollution can be caused to air, and the discharge standard of slaughter wastewater cannot be met.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a slaughter effluent treatment plant to solve current slaughter the balanced pond of waste water and give off the peculiar smell and can cause secondary pollution's problem to the air.

The utility model provides a slaughter effluent treatment plant, including the super little formula grid that circles round, equalizing basin, air supporting machine, anaerobism pond, facultative tank, good oxygen pond, sedimentation tank, the disinfection pond that sets gradually, facultative tank with good oxygen pond still is connected with an aeration systems, be equipped with the impeller in the equalizing basin, the equalizing basin through a elevator pump with the air supporting machine is connected.

Furthermore, the aeration system comprises a Roots blower and a plurality of air outlet pipes connected with the Roots blower, and the air outlet pipes are respectively arranged in the facultative tank and the aerobic tank.

Furthermore, two partition plates are arranged in the aerobic tank to form three aerobic reaction chambers.

Furthermore, the facultative tank and the aerobic tank are connected with the sedimentation tank through a sludge reflux pump.

Furthermore, one side of the disinfection tank is provided with an ozone generator, and the ozone generator is also connected with the equalization tank.

Further, a dosing device is arranged on one side of the equalizing tank, and a phosphate throwing barrel, a magnesium salt throwing barrel, a polyaluminium chloride throwing barrel and a polyacrylamide throwing barrel are arranged in the dosing device.

Further, the lift pump is connected with the air floatation machine through a dissolved air tank.

Above-mentioned slaughtering wastewater treatment device filters short and small thin hair class through super little convolution grid, then adds ozone in the equalizing basin and disinfects, deodorizes, and application air supporting machine carries out the materialization and handles, gets rid of the grease in the waste water, considers the ammonia nitrogen value height in the sewage, throws phosphate and magnesium salt simultaneously, forms phosphorus ammonia magnesium sediment, then gets into anaerobism pond, facultative tank, aerobic tank, sedimentation tank and just biochemical treatment for all indexes of the sewage journey after the processing reach standard.

Drawings

FIG. 1 is a schematic structural view of a slaughter wastewater treatment plant according to a first embodiment of the present invention;

fig. 2 is a schematic structural view of a slaughter wastewater treatment plant according to a second embodiment of the present invention.

Description of the main element symbols:

ultramicro convolution type grid	10	Polyacrylamide putting barrel	234	Sedimentation tank	70
						Equalizing pool	20	Dissolved air tank	24	Sludge reflux pump	71
Impeller	21	Air floatation machine	30	Disinfection pool	80
						Lift pump	22	Anaerobic tank	40	Ozone generator	81
Medicine adding device	23	Facultative tank	50	Aeration system	90
						Phosphate putting barrel	231	Aerobic tank	60	Roots blower	91
Magnesium salt putting barrel	232	Partition board	61	Air outlet pipe	92
						Polyaluminium chloride putting barrel	233	Aerobic reaction chamber	62

The following detailed description of the invention will be further described in conjunction with the above-identified drawings.

Detailed Description

In order to facilitate understanding of the present invention, the present invention will be described more fully hereinafter with reference to the accompanying drawings. Several embodiments of the invention are given in the accompanying drawings. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1, a slaughter wastewater treatment apparatus according to a first embodiment of the present invention includes an ultramicro convolution type grid 10, an equalizing tank 20, an air flotation machine 30, an anaerobic tank 40, a facultative tank 50, an aerobic tank 60, a sedimentation tank 70, and a disinfection tank 80, which are sequentially disposed, wherein the facultative tank 50 and the aerobic tank 60 are further connected to an aeration system 90, a flow pushing device 21 is disposed in the equalizing tank 20, and the equalizing tank 20 is connected to the air flotation machine 30 through a lift pump 22.

The slaughtering wastewater treatment device filters short and small hairiness through the ultramicro-convolution type grating 10, then carries out physicochemical treatment by using the air floatation machine 30, realizes solid-liquid phase separation, removes grease in wastewater, considers that the ammonia nitrogen value in the wastewater is high, and simultaneously adds phosphate and magnesium salt to form magnesium ammonium phosphate precipitate, and forms magnesium ammonium phosphate precipitate by using a flocculation coprecipitation method for most of ammonia nitrogen, so that clear and almost oilless water is obtained, and then enters the anaerobic tank 40, the facultative tank 50, the aerobic tank 60 and the sedimentation tank 70 for biochemical treatment, and finally reaches the standard after the disinfection treatment is carried out in the disinfection tank 80, so that all indexes of the treated wastewater reach the standard.

Wherein, a mechanical filtering method of micro-filtration on the ultramicro convolution type grid 10 can remove 85 percent of suspended matters in sewage, can separate waste in animal intestines, hair and plankton of flowing-out animals, plankton meat, organic matter residue and the like which are left in slaughtered animals to a great extent, and achieves the aim of reaching the standard of liquid purification and discharge.

Specifically, in this embodiment, an ozone generator 81 is disposed at one side of the disinfection tank 80, and the ozone generator 81 is further connected to the equalization tank 20. Ozone is added into the equalizing tank 20 for disinfection and deodorization, specifically, the bloody smell in the slaughtering process and the foul smell of excrement and urine of each animal before slaughtering are mainly removed, and in the sewage link, as long as the ozone dosage is not excessive, the biological bacteria in a subsequent biochemical system cannot be influenced. Ozone molecules can automatically disappear after more than one hour when staying in a water body, so that the quality of air around a slaughterhouse cannot be greatly influenced.

Slaughter wastewater flows to the equalizing tank 20 after passing through the ultramicro rotary grid machine 10, and the purpose is to equalize water quality and ensure that subsequent treatment processes can be processed at the same speed as much as possible; secondly, by utilizing the volume and enough residence time of the equalizing tank 20, a low-speed underwater propeller 21 is added into the equalizing tank 20 for stirring to prevent fine particles from settling, and gas generated by introducing ozone generator equipment is introduced into the equalizing tank 20. The process utilizes ozone for disinfection and sterilization, the ozone can also oxidize and decompose pollutants in water, and the ozone has obvious effects of removing odor, decoloring, sterilizing, removing phenol, cyanogen, iron and manganese, reducing COD, BOD and the like in water treatment.

Specifically, in this embodiment, the aeration system 90 includes a roots blower 91 and a plurality of air outlet pipes 92 connected to the roots blower 91, and the air outlet pipes 92 are respectively disposed in the facultative tank 50 and the aerobic tank 60. To provide sufficient oxygen to the facultative tank 50 and the aerobic tank 60.

Specifically, in this embodiment, two partition plates 61 are disposed in the aerobic tank 60 to form three aerobic reaction chambers 62, so as to increase the reaction time of the wastewater in the aerobic tank 60, and make the oxidation reaction more sufficient.

Specifically, in this embodiment, the slaughter wastewater treatment plant employs the a2/O process, wherein the wastewater first passes through the anaerobic tank 40, then through the facultative tank 50, and finally through (complete activator sludge process) aerobic treatmentA tank 60. Because the chemical oxygen demand in the slaughtering wastewater is higher, the chemical oxygen demand in the residual water is more difficult to degrade after the water is subjected to dissolved air floatation, so that in the process, the anaerobic tank ensures that the hydraulic load of the sewage does not exceed 1m³The dissolved oxygen of the sewage is below 0.4g/L per square meter h, the facultative tank ensures that the dissolved oxygen in the sewage is about 0.5g/L, and the residence time of the sewage is determined according to the difference of various slaughter objects and the difference of the water quality indexes of discharged water. The aerobic tank adopts a multi-format method to ensure that the dissolved oxygen in the sewage is only 2-4mg/L, and is determined according to the requirement of the discharged water quality index.

Specifically, in this embodiment, the facultative tank 50 and the aerobic tank 60 are connected to the sedimentation tank 70 through a sludge recirculation pump 71, so as to repeatedly react the sludge in the facultative tank 50 and the aerobic tank 60, and ensure that the sludge reaches the standard before being discharged.

Specifically, in this embodiment, a chemical adding device 23 is disposed on one side of the equalizing tank 20, and a phosphate adding barrel 231, a magnesium salt adding barrel 232, a polyaluminium chloride adding barrel 233, and a polyacrylamide adding barrel 234 are disposed in the chemical adding device 23. To administer the corresponding response agent.

Referring to fig. 2, the slaughter wastewater treatment plant according to the second embodiment of the present invention is different from the first embodiment in that the lift pump 22 is connected to the air flotation machine 30 through a dissolved air tank 24 in the second embodiment. The sewage is lifted into the dissolved air tank 24 by the equalizing tank 20 and then enters the air flotation machine 30. The characteristics of the dissolved air tank 24 and the air floatation machine 30 are utilized to enable air compression to be instantly released or mechanically sheared to form micro-bubble floating bubbles, the dissolved air tank 24 is firstly utilized to aerate water, the obvious effect of removing surfactants and peculiar smell in water is achieved, meanwhile, the aeration increases the dissolved oxygen in the water, favorable conditions are provided for subsequent treatment, sludge expansion can be eliminated, and most of oil in water can be removed by the slaughter wastewater treatment device through the air floatation machine 30; and most of the insoluble chemical oxygen demand in the water is removed by the dissolved air tank 24; it can be understood that, in the specific implementation process, magnesium sulfate and disodium hydrogen phosphate can be added simultaneously during air floatation to remove ammonia nitrogen; a large amount of ammonia nitrogen exists in slaughter wastewater, and magnesium salt and phosphate are added to carry out double decomposition reaction by combining an air floatation process to generate ammonium magnesium phosphate salt precipitate to be removed.

It can be understood that some large slaughterhouses have higher requirements on water quality, and need to use part of water in the slaughterhouse for water used in the cultivation field and the surrounding environment, at this time, the aerobic pool 60 of the biochemical system is finally subjected to fenton oxidation treatment, and the fenton oxidation treatment aims to mainly make the chemical oxygen demand lower through further fenton oxidation of hydroxyl substituent types, hydroxyl numbers, hydroxyl substitution positions, main chain length and main chain saturated groups in the chemical oxygen demand after biochemical treatment, and the treated water is used as the miscellaneous water of the slaughterhouse, so as to achieve the purpose of saving water.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. The utility model provides a slaughter effluent treatment plant, its characterized in that, including the super little formula grid that circles round, equalizing basin, air supporting machine, anaerobism pond, facultative tank, good oxygen pond, sedimentation tank, the disinfection pond that sets gradually, facultative tank with good oxygen pond still is connected with an aeration system, be equipped with the impeller in the equalizing basin, the equalizing basin through a elevator pump with the air supporting machine is connected.

2. The slaughter wastewater treatment plant according to claim 1, wherein the aeration system comprises a roots blower and a plurality of gas outlet pipes connected with the roots blower, and the plurality of gas outlet pipes are respectively arranged in the facultative tank and the aerobic tank.

3. The slaughter wastewater treatment plant according to claim 1, wherein two partition plates are provided in the aerobic tank to form three aerobic reaction chambers.

4. The slaughter wastewater treatment plant according to claim 1, wherein the facultative tank and the aerobic tank are connected to the sedimentation tank by a sludge recirculation pump.

5. Slaughter wastewater treatment plant according to claim 1, characterized in that an ozone generator is provided on one side of the disinfection tank, which ozone generator is also connected to the equalization tank.

6. The slaughtering wastewater treatment plant according to claim 1, wherein a dosing device is arranged on one side of the equalization tank, and a phosphate feeding barrel, a magnesium salt feeding barrel, a polyaluminium chloride feeding barrel and a polyacrylamide feeding barrel are arranged in the dosing device.

7. Slaughter wastewater treatment plant according to claim 1, characterized in that the lift pump is connected to the air flotation machine via a dissolved air tank.