CN203108922U - Kitchen waste treatment system - Google Patents
Kitchen waste treatment system Download PDFInfo
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- CN203108922U CN203108922U CN 201220521992 CN201220521992U CN203108922U CN 203108922 U CN203108922 U CN 203108922U CN 201220521992 CN201220521992 CN 201220521992 CN 201220521992 U CN201220521992 U CN 201220521992U CN 203108922 U CN203108922 U CN 203108922U
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Abstract
The utility model discloses a kitchen waste treatment system and solves the problems that the kitchen waste treatment system does not adapt to China's actual conditions, a treatment effect is not ideal and waste is easily caused in the prior art. The kitchen waste treatment system is respectively provided with a kitchen waste pretreatment system and a kitchen waste wastewater treatment system, kitchen wastes are pretreated through the kitchen waste pretreatment system, the wastewater generated in a treatment process is treated and recycled through the kitchen waste wastewater treatment system, the original thought of treating the kitchen wastes by a solid anaerobic fermentation technology is broken, a liquid-phase efficient anaerobic technology treatment process serves as the main process, the reclaimed water is recycled, and the reclaimed water is recycled in the front pretreatment process. In the whole treatment process, the investment cost is not increased while the treatment effect is improved, and harmlessness and recycling of solid, liquid and gas wastes are really realized.
Description
Technical field
The utility model relates to a kind of refuse disposal system, relates in particular to a kind of changing food waste treatment system.
Background technology
Along with urban economy, society and people's lives fast development, changing food waste manifests day by day to the pollution of environment and the harm of public health security, and the harm of changing food waste has caused the great attention of people and government.Building changing food waste and handle engineering, is the needs of city fast development, meets the sustainable development that changing food waste is handled, and has improved that changing food waste is innoxious, minimizing and resource level, and can improve the receipts fortune present situation of changing food waste.
The major technique of changing food waste processing at present comprises landfill, burning, anaerobic fermentation, aerobic compost, directly feed and microbiological treatment technology are made in oven dry.Characteristics such as the landfill technology exists takes up an area of greatly, and percolate is many, environmental risk is big; Because calorific value is low, the energy consumption height, and produce pernicious gas such as bioxin, limited the development of incineration technology; Feedization and fertilizerization exist the risk that homology is polluted, and efficient is also very low; And utilize the anaerobic fermentation treatment technology to handle changing food waste more wide application is arranged abroad, particularly in Europe, handle organic waste with the method for anaerobic fermentation and obtain bigger development, in Japan and Korea S, anaerobic fermentation is handled changing food waste and has also been obtained bigger development.The innoxious degree of this technology is higher, has overcome the influence of homology fully, and has high organic loading ability to take the burden.Domestic traditional anaerobic fermentation technology is to smash slurrying after the changing food waste letter sorting at present, adopt the CSTR fermentation tank to carry out anaerobic fermentation then, but the unique dining and drinking culture of China has been brought up and the distinct changing food waste character in west, this Chinese changing food waste water content based on residue after the meal is big, and impurity is various.Make solid anaerobic digestion mix and badly cause acidifying serious, problems such as ammonia nitrogen accumulative total inhibition.Simultaneously, because traditional solid anaerobic digestion jar is according to the hydraulic detention time original design of (the HRT=SRT bacterial classification time of staying), the increase of water consumption all can cause CSTR anaerobic reactor volume undesirable extention in any pretreatment section.Selection and the treatment effect of pretreating process have been limited greatly.Make solid-fermented technique difficult in the practical application of Chinese meal kitchen garbage disposal.
The utility model content
The utility model discloses a kind of changing food waste treatment system, in order to solve changing food waste treatment system incompatibility China's actual conditions of the prior art, treatment effect is undesirable, easy wasting problem.
Above-mentioned purpose of the present utility model is achieved through the following technical solutions:
A kind of changing food waste treatment system, wherein, comprise a meal kitchen rubbish pretreatment system, described changing food waste pretreatment system has many wastewater discharge pipe roads and many inlet channels, described many wastewater discharge pipe roads are connected with the water inlet of a meal kitchen garbage, waste-water treatment system, the delivery port of described kitchen garbage, waste-water treatment system is connected with many inlet channels of described changing food waste treatment system, enters the changing food waste pretreatment system again after the sewage that makes described changing food waste pretreatment system discharge is handled by described kitchen garbage, waste-water treatment system and recycles.
Aforesaid changing food waste treatment system, wherein, described changing food waste pretreatment system specifically comprises: a hopper, the bottom of described hopper are provided with one first grizzly bar layer, one second grizzly bar layer from top to bottom successively, and the gap of the described second grizzly bar layer is greater than the gap of the described first grizzly bar layer; The bottom of described hopper is provided with a grit water separator, and the water side of described grit water separator is connected with the water inlet of a meal kitchen garbage, waste-water treatment system; Described hopper is provided with a material outlet, and rotary drum sieve is arranged on the side-lower of described hopper, and an end of a mass transport passage is connected on the described material outlet, and the other end of described mass transport passage is connected on the described rotary drum sieve; One end of one moving belt is arranged on the discharge end below of described rotary drum sieve, and the other end of described moving belt is arranged on a charging aperture top of pulverizing squeezer; The discharge end of described pulverizing squeezer is connected with a hydraulic flotation groove; The discharge end of described hydraulic flotation groove is connected with a pressafiner, and described pressafiner has a discharging opening.
Aforesaid changing food waste treatment system, wherein, described kitchen garbage, waste-water treatment system specifically comprises:
One waste water Buffer Pool, the side top of described waste water Buffer Pool is provided with a three phase separation jar, and the water inlet pipe of an elevator pump stretches into described waste water Buffer Pool, and the outlet pipe of described elevator pump is connected with described three phase separation jar;
Described three phase separation jar has a water layer outlet, and described water layer outlet is provided with one and goes out water pump, the described water side that goes out water pump be connected with regulating reservoir;
The water inlet end of one feed pump stretches into described regulating reservoir, and warm reactor is connected in the water side of described regulating reservoir and;
The water side of warm reactor is connected with a discharge bay in described, and an end of a feed pump is connected with described discharge bay, and the other end of described feed pump is connected with a reactor;
The outlet side of described reactor and an aeration tank are to being communicated with, and the below, water side of described aeration tank is provided with a sedimentation basin.
Aforesaid changing food waste treatment system, wherein, the water side of sedimentation basin is connected with one first reaction tank, be provided with sulfuric acid, hydrogen peroxide, ferrous sulfate in described first reaction tank, and be provided with agitator in described first reaction tank, the water side of described first reaction tank is connected with one second reaction tank, is provided with NaOH in described second reaction tank, the water side of described second reaction tank is connected with one the 4th reaction tank, has PAM in described the 4th reaction tank; The water side of described the 4th reaction tank is connected with a hang plate settling vessel, also comprise a continuous sand filter, described continuous sand filter is connected with described hang plate settling vessel by a supernatant elevator pump, the water reuse tank is connected in the water side of described continuous sand filter and, has water reuse water pump in the described middle water reuse tank.
Aforesaid changing food waste treatment system, wherein, the water inlet end of described rotary drum sieve is connected with the described middle water reuse water pump of described kitchen garbage, waste-water treatment system, and the water side of described rotary drum sieve is connected with described kitchen garbage, waste-water treatment system waste water Buffer Pool; The water inlet end of described pulverizing squeezer is connected with the described middle water reuse water pump of described kitchen garbage, waste-water treatment system, and the water side of described pulverizing squeezer is connected with the described waste water Buffer Pool of described kitchen garbage, waste-water treatment system.
Aforesaid changing food waste treatment system, wherein, the grizzly bar of the described first grizzly bar layer and the described second grizzly bar layer all communicates with the steam input pipe road; Described grit water separator has a vapor inlet port.
Aforesaid changing food waste treatment system, wherein, described three phase separation jar has an oil trap, also comprises a grease processing unit, is provided with a grease pump between described oil trap and the described grease processing unit.
Aforesaid changing food waste treatment system wherein, has a grug feeding jar, an agitator in the described regulating reservoir, be provided with the NaOH medicament in the described grug feeding jar, also has a pH value on-line detector and a liquid level gauge in the described regulating reservoir.
Aforesaid changing food waste treatment system, wherein, described in the top of warm reactor be provided with a biogas outlet, a biogas storage tank is connected with described biogas outlet, described biogas storage tank below is provided with cold a pourings jar.
Aforesaid changing food waste treatment system, wherein, described in warm reactor top be provided with a flotation tank, also comprise a sludge dewatering system, be connected by a sludge pump between described flotation tank and the described sludge treating system.
In sum, owing to adopted technique scheme, the utility model changing food waste treatment system has solved prior art Chinese meal kitchen refuse disposal system incompatibility China's actual conditions, treatment effect is undesirable, easy wasting problem, changing food waste pretreatment system and kitchen garbage, waste-water treatment system are set respectively, by the changing food waste pretreatment system changing food waste is carried out preliminary treatment, and it is recycling again after the waste water that produces in the processing procedure handled by the kitchen garbage, waste-water treatment system, broken through the thinking of original solid anaerobic fermentation technical finesse changing food waste, adopting liquid phase efficient anaerobic technological processing craft is main process, water circulation use in the realization, middle water reuse is to the leading portion preprocessing process.The entire process flow process does not increase investment cost when improving treatment effect, really realized the innoxious and resource of " solid, liquid, gas " three wastes.
Description of drawings
Fig. 1 is the structural representation of the changing food waste pretreatment system of the utility model changing food waste treatment system;
Fig. 2 is the structural representation of first of the kitchen garbage, waste-water treatment system of the utility model changing food waste treatment system;
Fig. 3 is the structural representation of second portion of the kitchen garbage, waste-water treatment system of the utility model changing food waste treatment system;
Fig. 4 is the structural representation of third part of the kitchen garbage, waste-water treatment system of the utility model changing food waste treatment system;
The specific embodiment
Below in conjunction with accompanying drawing the specific embodiment of the present utility model is further described:
A kind of changing food waste treatment system, wherein, comprise a meal kitchen rubbish pretreatment system, described changing food waste pretreatment system has many wastewater discharge pipe roads and many inlet channels, described many wastewater discharge pipe roads are connected with the water inlet of a meal kitchen garbage, waste-water treatment system, the delivery port of described kitchen garbage, waste-water treatment system is connected with many inlet channels of described changing food waste treatment system, enters the changing food waste pretreatment system again after the sewage that makes described changing food waste pretreatment system discharge is handled by described kitchen garbage, waste-water treatment system and recycles.
Fig. 1 is the structural representation of the changing food waste pretreatment system of the utility model changing food waste treatment system, sees also Fig. 1,
Fig. 1 is the structural representation of the utility model changing food waste pretreatment system, sees also Fig. 1, and a kind of changing food waste pretreatment system wherein, comprising:
One hopper 1, the bottom of described hopper 1 is provided with one first grizzly bar layer 11, one second grizzly bar layer 12 from top to bottom successively, the gap of the described second grizzly bar layer 12 is greater than the gap of the described first grizzly bar layer 11, two-layer grizzly bar layer is set makes and changing food waste can be separated by size, be convenient to follow-up cleaning work;
The bottom of described hopper 1 is provided with a grit water separator 3, the water side of described grit water separator 3 is connected with the water inlet of a meal kitchen garbage, waste-water treatment system, grit water separator 3 can proportion is bigger rubbish, come out as separation such as gravel, broken bone, fabrics, the rubbish that proportion is lighter and supernatant are from flowing into follow-up kitchen garbage, waste-water treatment system;
Described hopper 1 is provided with a material outlet, one rotary drum sieve is arranged on the side-lower of described hopper 1, one end of one mass transport passage 2 is connected on the described material outlet, the other end of described mass transport passage 2 is connected on the described rotary drum sieve, wherein, can be by passing through magnetic force on the mass transport passage 2, artificial separation band 5 is by manually with the difficult for biological degradation in the rubbish, hard bulk inorganic refuse, reach the technique effect of avoiding the pulverizer that may cause in the subsequent technique to destroy, wherein, the rotary drum sieve is a kind of horizontally-mounted waterpower rinsing device, can isolate automatically endways by the residue of rinsing simultaneously;
One end of one moving belt is arranged on the discharge end below of described rotary drum sieve, and the other end of described moving belt is arranged on a charging aperture top of pulverizing squeezer 6;
The discharge end of described pulverizing squeezer 6 is connected with a hydraulic flotation groove;
The discharge end of described hydraulic flotation groove is connected with a pressafiner, and described pressafiner has a discharging opening.
The gap of the described first grizzly bar layer 11 of the present utility model can be 8mm, and the width of the described first grizzly bar layer 11 can be 30mm.
The gap of the described second grizzly bar layer 12 of the present utility model can be 60mm, and the width of the described second grizzly bar layer 12 can be 30mm.
Further, the first grizzly bar layer 11 of the present utility model and the second grizzly bar layer 12 also can adopt other size, and protection domain of the present utility model is not restricted to above-mentioned size.
The grizzly bar of the described first grizzly bar layer 11 of the present utility model and the described second grizzly bar layer 12 all communicates with the steam input pipe road, and wherein, logical steam can prevent from covering obstruction with the animal fat fusion in the grizzly bar.Free water and slurry.
The interior method that feeds steam of grizzly bar has multiple, all should belong in the protection domain of the present utility model, does not repeat them here.
Described grit water separator 3 of the present utility model has a vapor inlet port, and wherein, logical steam can prevent from covering obstruction with the animal fat fusion in the grit water separator 3.
Described mass transport passage 2 of the present utility model is specifically as follows two differential spirals to be formed, and also can transmit by other means.
The water inlet end of described rotary drum sieve of the present utility model is connected with the delivery port of described kitchen garbage, waste-water treatment system, and the water side of described rotary drum sieve is connected with the water inlet of described kitchen garbage, waste-water treatment system, realizes the technique effect of waste water reuse.
The water inlet end of described pulverizing squeezer 6 of the present utility model is connected with the delivery port of described kitchen garbage, waste-water treatment system, the water side of described pulverizing squeezer 6 is connected with the water inlet of described kitchen garbage, waste-water treatment system, similar with the scheme of front, realize the technique effect of waste water reuse equally.
The feeding inlet of the discharging opening of described pressafiner of the present utility model and a drying plant, what the utility model changing food waste was handled can carry out the forage protein that follow-up oven dry handles to make high added value at last, further, also can directly do byproducts such as granular fuel.
Described hopper of the present utility model 1 top has a material and sends into conveyer belt, and the material that described material is sent into conveyer belt is put into end and had with on-ground weigher.
In an embodiment of the present utility model, concrete working method of the present utility model is as follows:
Changing food waste is through after receiving fortune vehicle transport arrival disposal field, after weighing in process ground, pour in the receiving hopper 1, (especially place, spiral bottom) is by gap 60mm and gap 8mm in the bottom of whole receiving hopper, the double-deck grizzly bar of wide 30mm is formed, logical steam can prevent from covering obstruction with the animal fat fusion in the grizzly bar.Free water and slurry, and the suspension of the following particle diameter of 8mm will through this process, estimate that the scale of construction of changing food waste will reduce half from the grit water separator 3 that falls into its underpart between grizzly bar.
The swill liquid that falls into grit water separator 3 continues the rubbish that proportion is bigger, comes out as separation such as gravel, broken bone, fabrics, and the rubbish that proportion is lighter and supernatant are from flowing into follow-up kitchen garbage, waste-water treatment system.Logical steam can prevent from covering obstruction with the animal fat fusion in the grit water separator 3.
The mass transport passage 2 that hopper 1 isolated bigger rubbish is formed by two differential spirals slowly and equably is transported to rotary drum sieve 4, finishes broken bag in this course simultaneously and handles.
The rubbish that helical feed is come falls in the rotary drum sieve continuously, relies on the rotation of rotary drum sieve that rubbish is stirred in rinsing liquid, reaches the purpose of washing.Through washing, the smell of residue improves greatly, and organic matter also is split into wastewater treatment.
Residue after the washing by magnetic force, artificial separation band 5 by artificial with the difficult for biological degradation in the rubbish, hard bulk inorganic refuse, may cause the back segment pulverizer to destroy, for example glass, porcelain watt, nonferrous metal (the ironware letter sorting of the magnetic force before entering manual sorting's platform is removed) letter sorting are removed.
Through after the artificial separation, rubbish relies on gravity to fall into to pulverize squeezer 6 to be pulverized, and pulverizes the laggard waterpower flotation cell of going into, and uses recycle-water to wash, can through overstocking, cutting, the organic matter of pulverizing the back outflow bring wastewater treatment into.
Rubbish residue after the pulverizing is sent into pressafiner solid content is risen to more than 50% from 10%, further grind then the following particle diameter of 3mm or thinner, send into follow-up oven dry and handle to make the forage protein of high added value or directly do byproducts such as granular fuel.
A kind of changing food waste pretreatment system in the utility model not only will be removed the stench peculiar smell that changing food waste produces by pre-washing, but also the thickness organic matter cleaning of more hogwash surface is gone to produce the natural pond.The washing of pulverizing squeezer can improve the treatment effect of pulverizing cutter head, the thickness organic matter that will flow out after further washing not only will be pulverized after pulverizing cleans and goes to produce the natural pond, and lubricating between the destruction crushed material, be conducive to the press dewatering effect, obtain higher mass dryness fraction and cleaner solid giving up, thereby reach extremely effective and outstanding garbage disposal result.
On the basis of changing food waste pretreatment system of the present utility model, the utility model also has a meal kitchen garbage, waste-water treatment system, handle in order to the waste water that the changing food waste pretreatment system is produced, and be re-applied in the changing food waste pretreatment system, the described kitchen garbage, waste-water treatment system in the utility model specifically comprises:
Fig. 2 is the structural representation of first of the kitchen garbage, waste-water treatment system of the utility model changing food waste treatment system, sees also Fig. 2, and a kind of kitchen garbage, waste-water treatment system wherein, comprising:
One waste water Buffer Pool 7, the side top of described waste water Buffer Pool 7 is provided with a three phase separation jar 12, the water inlet pipe of one elevator pump 9 stretches into described waste water Buffer Pool 7, and the outlet pipe of described elevator pump 9 is connected with described three phase separation jar 12, three phase separation jar 12 is set goes out grease and dirt in order to sub-argument;
Described three phase separation jar 12 has a water layer outlet, and described water layer outlet is provided with one and goes out water pump, the described water side that goes out water pump be connected with regulating reservoir 16;
The water inlet end of one feed pump 19 stretches into described regulating reservoir 16, and warm reactor 20 is connected in the water side of described regulating reservoir 16 and, and a large amount of organic matters is removed in middle temperature reactor 20, and is converted into biogas;
Fig. 3 is the structural representation of the second portion of the utility model changing food waste treatment system, see also Fig. 3, the water side of warm reactor 20 is connected with a discharge bay 22 in described, one end of one feed pump 19 is connected with described discharge bay 22, and the other end of described feed pump 19 is connected with a reactor 24;
The outlet side of described reactor 24 and an aeration tank 28 are to being communicated with, and the below, water side of described aeration tank 28 is provided with a sedimentation basin 30, and further degradation of organic substances of aeration tank 28 is set.
Be provided with a steam jet ejector 8 in the described waste water flushing tank of the present utility model, feed steam and heat, and prevent that grease from covering obstruction.
Be provided with two-stage vortex plate type heat exchanger between described waste water Buffer Pool 7 of the present utility model and the described three phase separation jar 12, in order to waste water is heated, make the temperature in the three phase separation jar 12 remain on the higher temperature, temperature can be remained on 70 degree, to reach separating effect preferably.
Described three phase separation jar 12 of the present utility model has an oil trap, also comprises a grease processing unit, is provided with a grease pump 14 between described oil trap and the described grease processing unit.
Be provided with an one-level vortex plate type heat exchanger 15 between described regulating reservoir 16 of the present utility model and the described three phase separation jar 12, to reduce wastewater temperature.
Have a grug feeding jar 18, an agitator 17 in the described regulating reservoir 16 of the present utility model, be provided with the NaOH medicament in the described grug feeding jar 18, also have a pH value on-line detector and a liquid level gauge in the described regulating reservoir 16.
Of the present utility model described in the top of warm reactor 20 be provided with a biogas outlet, one biogas storage tank 48 is connected with described biogas outlet, described biogas storage tank 48 belows are provided with a cold pouring jar 47, biogas drains into biogas storage tank 48 from reactor head, and the cold trickle in the biogas is collected by cold pouring jar 47.
Of the present utility model described in warm reactor 20 tops be provided with a flotation tank, also comprise a sludge dewatering system, be connected by a sludge pump 21 between described flotation tank and the described sludge treating system, the SS of other bio-degradables in the waste water and grease are separated in the flotation tank that reactor top is settled, be back in the BIOPAQ reactor together with a body refuse part of collecting in the air supporting, excess sludge is squeezed into sludge dewatering system by sludge pump 21 and is carried out processed.The water outlet of BIOPAQ reactor is from flowing into BIOPAQ discharge bay 22.
Be provided with activated sludge flavor scrubbing tower in the described aeration tank of the present utility model.
The water side of sedimentation basin 30 of the present utility model is connected with one first reaction tank 31, be provided with sulfuric acid, hydrogen peroxide, ferrous sulfate in described first reaction tank 31, and be provided with agitator 17 in described first reaction tank 31, the water side of described first reaction tank 31 is connected with one second reaction tank 31, be provided with NaOH in described second reaction tank 31, the water side of described second reaction tank 31 is connected with one the 4th reaction tank 31, has PAM in described the 4th reaction tank 31; The water side of described the 4th reaction tank 31 is connected with a hang plate settling vessel 36, also comprise a continuous sand filter 38, described continuous sand filter 38 is connected with described hang plate settling vessel 36 by a supernatant elevator pump 9, water reuse tank 39 is connected in the water side of described continuous sand filter 38 and, has water reuse water pump 40 in the water reuse tank 39 in described, wherein, described first reaction tank 31, second reaction tank 31, the 3rd reaction tank 31, the 4th reaction tank 31 can be four sub-reaction tanks of one reaction pool 31.
Fig. 2 is that structural representation, Fig. 3 of the first of the utility model changing food waste treatment system is that structural representation, Fig. 4 of the second portion of the utility model changing food waste treatment system is the structural representation of the third part of the utility model changing food waste treatment system, see also Fig. 2, Fig. 3, Fig. 4, in an embodiment of the present utility model, concrete working method of the present utility model is as follows:
Waste water Buffer Pool 7 is collected all pressing filtrates of front end and flushing water, waste water inside mixes, homogeneous, waste water heats by steam jet ejector 8 feeding steam in the pond simultaneously, to prevent that grease from covering obstruction, waste water is promoted to follow-up three phase separation jar 12 by elevator pump 9, use two-stage vortex plate type heat exchanger 10 at three phase separation jar 12 front ends, 11 carry out the waste water heating, make the wastewater temperature in the three phase separation jar 12 remain on 70 ℃, isolated grease is collected oil trap automatically and is delivered to the grease processing unit by grease pump 14, and mud then gravity current enters in the raw material refuse hopper.Water layer between oil reservoir and the following slag blanket is gone out water pump 13 and is squeezed into regulating reservoir 16 in the above, before regulating reservoir 16, use one-level vortex plate type heat exchanger 15 that wastewater temperature is down to 38 ℃, add the NaOH medicament by NaOH grug feeding jar 18 and regulate pH value of waste water, fully mix, dissolve by agitator 17, and prevent the sedimentation of solidity thing, be furnished with pH value on-line monitoring instrument and liquid level gauge in the pond with pH value and the liquid level of waste water in the continuous monitoring pond.Waste water is promoted to warm reactor 20 among the BIOPAQ by BIOPAQ feed pump 19, a large amount of organic matters is removed in the warm reactor 20 in BIOPAQ, be converted into biogas, biogas therefrom drains into biogas storage tank 48 in warm reactor 20 tops, cold trickle in the biogas is collected by cold pouring jar 47, biogas can directly burn by biogas burner 49, perhaps handles the back by THIOPAQ biogas desulfurization system and is used for generating.The SS of other bio-degradables in the waste water and grease are then separated in the flotation tank that settle on middle temperature reactor 20 tops, be back in the BIOPAQ reactor together with a body refuse part of collecting in the air supporting, excess sludge is squeezed into sludge dewatering system by sludge pump 21 and is carried out processed.The water outlet of BIOPAQ reactor is pumped to aerobic unit by PHOSPAQ charging pump 23 then from flowing into BIOPAQ discharge bay 22.
Waste water is further removed biodegradable organic pollution through the aerobic activated sludge system handles again after Anaerobic Treatment.Because P content is higher in the anaerobism water outlet, for effectively removing phosphorus and reducing the situation that occurs guanite in the follow-up system, the anaerobism water outlet pumps into PHOSPAQ reactor 24 by PHOSPAQ charging pump 23.Add NaOH and Mg salt respectively in reactor by NaOH grug feeding jar 18 and Mg salt grug feeding jar 26, air blast 27 is set oxygen is provided, under aerobic condition, struvite crystals can form and be deposited in reactor bottom in reactor.Guanite precipitation and the active excess sludge that produces are delivered in the mud blending tank 41 by PHOSPAQ sludge pump 25.COD in the water and BOD also can degrade under aerobic condition effectively.
Wherein, in the above-mentioned technology, warm reactor is to design according to volumetric loading VLR among the BIOPAQ that the efficient anaerobic technology adopts, rather than the CSTR of low usefulness is according to the hydraulic detention time original design of (the HRT=SRT bacterial classification time of staying), so in conjunction with technology of middle water recycle, core concept of the present utility model be do not limit in addition encourage to give up admittedly (hogwash) letter sorting and processing procedure adopt water in the circulation in a large number.The risk of having evaded traditional CSTR full-mixing type reactor volume undesirable extention simultaneously.
24 water outlets of PHOSPAQ reactor are from flowing to follow-up activated sludge process aeration tank 28 further degradable organic pollutants.And in this aeration tank, be provided with the waste gas that foul smell treating apparatus Bio-Scrubber activated sludge stink scrubbing tower 29 is handled whole process flow.Waste gas feeds Bio-Scrubber activated sludge stink scrubbing tower 29 from the bottom, by sludge pump 31 the partial reflux activated sludge is squeezed into scrubbing tower, packing layer at scrubbing tower fully contacts with waste gas, decomposes by microorganism, absorbs and decompose the gases of a large amount of generation stinks.Aeration tank 28 water outlets enter sedimentation basin 30 and precipitate, and sedimentation basin 30 water outlets require to continue to enter follow-up advanced treatment system according to water outlet.
Sedimentation basin 30 water outlets gravity flow enters follow-up Fenton reaction tank 31, in first reaction tank, add sulfuric acid, hydrogen peroxide, ferrous sulfate respectively by sulfuric acid grug feeding jar 32, hydrogen peroxide grug feeding jar 33 and ferrous sulfate grug feeding jar 34, fully mix by agitator, chemical oxidation reaction takes place, and removes the organic pollution of some difficult for biological degradation in the waste water.Add NaOH adjusting pH value of waste water by NaOH grug feeding jar 18 in second reaction tank, add PAM by PAM grug feeding jar 35 in the 4th reaction tank, the tiny flco that oxidation reaction is formed is condensed into bigger flco.The water outlet gravity flow enters tilted plate separator 36 and carries out Separation of Solid and Liquid.Supernatant enters continuous sand filter 38 by elevator pump 37 liftings and carries out subsequent treatment, and mud is from flowing into mud blending tank 41.Waste water is undertaken can reaching middle water reuse standard after the filtration treatment by final continuous sand filter 38, and water outlet is water reuse tank 39 in flowing into, and is supplied water to flushing and the spray of front end pre-processing device by middle water reuse water pump 40.
This technological process is provided with sludge treating system, mud blending tank 41 has been collected BIOPAQ anaerobic sludge, FENTON mud and guanite mud, fully mix by agitator 42, mud is squeezed into folded spiral shell dewaterer 44 by mud elevator pump 43 and is dewatered, and adds the dewatering that PAM improves mud by grug feeding jar 35 in mud.Filtrate in the dehydration is from flowing into reservoir 45.Squeezed into the sewage disposal system of front end handles by filtrate pump 46.
This technological process has really realized the innoxious and resource of " solid, liquid, gas " three wastes.When not increasing cost of investment, can obtain considerable economic.
Below enumerate a utility model obtained technique effect in actual applications:
Be example to handle 25 tons of/day changing food waste projects, 25 tons of/day changing food wastes through the front end preliminary treatment after, the waste water total amount that produce every day is 64m3, wherein receiving hopper is isolated free water 8.5m3; Rotary drum sieve flushing water 30.25m3; Screw press 25.6m3.The sewage disposal system of the about 64 m3/d disposal abilities of subsequent design, water outlet can reach three grades of discharge standards to waste water through biochemical treatment system, the advanced treating water outlet can reach municipal wastewater and handle one-level A discharge standard, but the water outlet reuse is to flushing, the spray of front end pre-processing device.
Relative subject device parameter list:
| Device name | Quantity | Equipment size/disposal ability |
| Receiving hopper | 2 | 2x2x1m |
| Helical feed | 2 | 3m3/h |
| Grit water separator | 1 | 10m3/d |
| The rotary drum sieve | 1 | Φ1.5m |
| Magnetic force, artificial separation device | 1 | 12m3/d |
| Pulverize squeezer | 1 | 12m3/d |
| Buffer Pool | 1 | 70m3 |
| The vortex plate type heat exchanger | 3 | 70 m3/d |
| The three phase separation jar | 1 | Φ4.5x6m |
| Regulating reservoir | 1 | 3m3 |
| Warm reactor among the BIOPAQ | 1 | Φ8.54x11.3m |
| The PHOSPAQ reactor | 1 | Φ2.1x8m |
| Sedimentation basin | ? | Φ1.5x4m |
| The biological scrubbing tower of Bio-Scrubber | 1 | Φ3.5x22.5m |
| The Fenton reaction tank | 1 | 3.4x1.3x3m |
| Tilted plate separator | 1 | 3.07x1.2x3.8m |
| Continuous sand filter | 1 | Φ0.958x4.31m |
| Folded spiral shell dewaterer | 1 | 5～8m3/h |
| The biogas air bag | 1 | 10m3 |
| Condensation water tank | 1 | Φ0.6x1.0m |
| Biogas burner | 1 | 150m3/h |
Whole anaerobic ferment devices estimates to produce biogas 2156m3/d, and behind the THIOPAQ biological desulphurization, H2S concentration can be purified to below the 50ppm;
Changing food waste is apt to deteriorate, produces stench, must in time collect, and ventilates energetically.After waste gas washs through the Bio-Scrubber activated sludge, can realize the secondary standard of factory's circle emission limit of " People's Republic of China's odorant pollutant discharge standard " regulation (GB14554-93).
This project makes changing food waste reach recycling treatment by High-efficient Anaerobic Technology, reaches the purpose that reclaims resource, energy savings.Entire process technology has demonstrated fully the principle of recycling economy, has realized material circulation and energy circulation between each technique unit.By calculating the calorific value of biogas, can realize the thermal balance of on-site.
This project operation cost: 930 yuan/day, amounting to processing cost is 37.2 yuan of/ton rubbish.
It is that biogas, bio-oil, natural pond slag are done the bio-fertilizer additive that this project is mainly moved income.
According to the operating experience of external project and domestic a large amount of experiments, produce 0.35 m3 methane according to 1kgCOD and calculate, can produce 1200m3 methane, amounting to biogas output is 2156m3/d, calculates according to 2 yuan/m3, can produce 4312 yuan income every day.
Wherein, therefore bio-oil content 1% in the normal changing food waste have 0.25 ton high oil content grease can obtain reclaiming, and bio-oil can produce 1000 yuan of incomes every day by 4000 yuan of/ton calculating.
The natural pond slag also can produce good income as the additive of fertilizer in the fermentation tank, specifically can adjust according to local circumstance.
The project common property is given birth to 64 tons of/day waste water, and theory needs heat 5400MJ/d to heat temperature raising from 50 ℃ to 70 ℃.And anaerobic methane production gas estimates that methane production is about 1200m3/d.Theoretical heat is 43000MJ/d.The remainder value is 37600 MJ/d.
In sum, owing to adopted technique scheme, the utility model changing food waste treatment system has solved prior art Chinese meal kitchen refuse disposal system incompatibility China's actual conditions, treatment effect is undesirable, easy wasting problem, changing food waste pretreatment system and kitchen garbage, waste-water treatment system are set respectively, by the changing food waste pretreatment system changing food waste is carried out preliminary treatment, and it is recycling again after the waste water that produces in the processing procedure handled by the kitchen garbage, waste-water treatment system, broken through the thinking of original solid anaerobic fermentation technical finesse changing food waste, adopting liquid phase efficient anaerobic technological processing craft is main process, water circulation use in the realization, middle water reuse is to the leading portion preprocessing process.The entire process flow process does not increase investment cost when improving treatment effect, really realized the innoxious and resource of " solid, liquid, gas " three wastes.
It should be appreciated by those skilled in the art that those skilled in the art can realize described variation example in conjunction with prior art and above-described embodiment, do not repeat them here.Such variation example does not influence flesh and blood of the present utility model, does not repeat them here.
More than preferred embodiment of the present utility model is described.It will be appreciated that the utility model is not limited to above-mentioned specific implementations, wherein the equipment of not describing in detail to the greatest extent and structure are construed as with the common mode in this area and are implemented; Any those of ordinary skill in the art, do not breaking away under the technical solutions of the utility model scope situation, all can utilize method and the technology contents of above-mentioned announcement that technical solutions of the utility model are made many possible changes and modification, or being revised as the equivalent embodiment of equivalent variations, this does not influence flesh and blood of the present utility model.Therefore, every content that does not break away from technical solutions of the utility model according to any simple modification, equivalent variations and the modification that technical spirit of the present utility model is done above embodiment, all still belongs in the scope of technical solutions of the utility model protection.
Claims (10)
1. changing food waste treatment system, it is characterized in that, comprise a meal kitchen rubbish pretreatment system, described changing food waste pretreatment system has many wastewater discharge pipe roads and many inlet channels, described many wastewater discharge pipe roads are connected with the water inlet of a meal kitchen garbage, waste-water treatment system, the delivery port of described kitchen garbage, waste-water treatment system is connected with many inlet channels of described changing food waste treatment system, enters the changing food waste pretreatment system again after the sewage that makes described changing food waste pretreatment system discharge is handled by described kitchen garbage, waste-water treatment system and recycles.
2. changing food waste treatment system according to claim 1, it is characterized in that, described changing food waste pretreatment system specifically comprises: a hopper, the bottom of described hopper is provided with one first grizzly bar layer, one second grizzly bar layer from top to bottom successively, and the gap of the described second grizzly bar layer is greater than the gap of the described first grizzly bar layer; The bottom of described hopper is provided with a grit water separator, and the water side of described grit water separator is connected with the water inlet of a meal kitchen garbage, waste-water treatment system; Described hopper is provided with a material outlet, and rotary drum sieve is arranged on the side-lower of described hopper, and an end of a mass transport passage is connected on the described material outlet, and the other end of described mass transport passage is connected on the described rotary drum sieve; One end of one moving belt is arranged on the discharge end below of described rotary drum sieve, and the other end of described moving belt is arranged on a charging aperture top of pulverizing squeezer; The discharge end of described pulverizing squeezer is connected with a hydraulic flotation groove; The discharge end of described hydraulic flotation groove is connected with a pressafiner, and described pressafiner has a discharging opening.
3. changing food waste treatment system according to claim 2 is characterized in that, described kitchen garbage, waste-water treatment system specifically comprises:
One waste water Buffer Pool, the side top of described waste water Buffer Pool is provided with a three phase separation jar, and the water inlet pipe of an elevator pump stretches into described waste water Buffer Pool, and the outlet pipe of described elevator pump is connected with described three phase separation jar;
Described three phase separation jar has a water layer outlet, and described water layer outlet is provided with one and goes out water pump, the described water side that goes out water pump be connected with regulating reservoir;
The water inlet end of one feed pump stretches into described regulating reservoir, and warm reactor is connected in the water side of described regulating reservoir and;
The water side of warm reactor is connected with a discharge bay in described, and an end of a feed pump is connected with described discharge bay, and the other end of described feed pump is connected with a reactor;
The outlet side of described reactor and an aeration tank are to being communicated with, and the below, water side of described aeration tank is provided with a sedimentation basin.
4. changing food waste treatment system according to claim 3, it is characterized in that, the water side of sedimentation basin is connected with one first reaction tank, be provided with sulfuric acid, hydrogen peroxide, ferrous sulfate in described first reaction tank, and be provided with agitator in described first reaction tank, the water side of described first reaction tank is connected with one second reaction tank, is provided with NaOH in described second reaction tank, the water side of described second reaction tank is connected with one the 4th reaction tank, has PAM in described the 4th reaction tank; The water side of described the 4th reaction tank is connected with a hang plate settling vessel, also comprise a continuous sand filter, described continuous sand filter is connected with described hang plate settling vessel by a supernatant elevator pump, the water reuse tank is connected in the water side of described continuous sand filter and, has water reuse water pump in the described middle water reuse tank.
5. changing food waste treatment system according to claim 3, it is characterized in that, the water inlet end of described rotary drum sieve is connected with the described middle water reuse water pump of described kitchen garbage, waste-water treatment system, and the water side of described rotary drum sieve is connected with described kitchen garbage, waste-water treatment system waste water Buffer Pool; The water inlet end of described pulverizing squeezer is connected with the described middle water reuse water pump of described kitchen garbage, waste-water treatment system, and the water side of described pulverizing squeezer is connected with the described waste water Buffer Pool of described kitchen garbage, waste-water treatment system.
6. changing food waste treatment system according to claim 2 is characterized in that, the grizzly bar of the described first grizzly bar layer and the described second grizzly bar layer all communicates with the steam input pipe road; Described grit water separator has a vapor inlet port.
7. changing food waste treatment system according to claim 3 is characterized in that, described three phase separation jar has an oil trap, also comprises a grease processing unit, is provided with a grease pump between described oil trap and the described grease processing unit.
8. changing food waste treatment system according to claim 3 is characterized in that, has a grug feeding jar, an agitator in the described regulating reservoir, is provided with the NaOH medicament in the described grug feeding jar, also has a pH value on-line detector and a liquid level gauge in the described regulating reservoir.
9. changing food waste treatment system according to claim 3 is characterized in that, described in the top of warm reactor be provided with a biogas outlet, a biogas storage tank is connected with described biogas outlet, described biogas storage tank below is provided with cold a pourings jar.
10. changing food waste treatment system according to claim 3 is characterized in that, described in warm reactor top be provided with a flotation tank, also comprise a sludge dewatering system, be connected by a sludge pump between described flotation tank and the described sludge treating system.
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| CN 201220521992 CN203108922U (en) | 2012-10-12 | 2012-10-12 | Kitchen waste treatment system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220521992 CN203108922U (en) | 2012-10-12 | 2012-10-12 | Kitchen waste treatment system |
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| CN203108922U true CN203108922U (en) | 2013-08-07 |
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| CN 201220521992 Expired - Lifetime CN203108922U (en) | 2012-10-12 | 2012-10-12 | Kitchen waste treatment system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103008322A (en) * | 2012-10-12 | 2013-04-03 | 帕克环保技术(上海)有限公司 | Kitchen waste treatment system and method |
| CN104759138A (en) * | 2015-03-20 | 2015-07-08 | 上海秉汇智能新材料科技有限公司 | Energy-saving kitchen waste processor |
-
2012
- 2012-10-12 CN CN 201220521992 patent/CN203108922U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103008322A (en) * | 2012-10-12 | 2013-04-03 | 帕克环保技术(上海)有限公司 | Kitchen waste treatment system and method |
| CN103008322B (en) * | 2012-10-12 | 2015-07-22 | 帕克环保技术(上海)有限公司 | Kitchen waste treatment system |
| CN104759138A (en) * | 2015-03-20 | 2015-07-08 | 上海秉汇智能新材料科技有限公司 | Energy-saving kitchen waste processor |
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