CN108264203A - A kind of processing system and method for paper waste foul smell - Google Patents

A kind of processing system and method for paper waste foul smell Download PDF

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Publication number
CN108264203A
CN108264203A CN201810300934.5A CN201810300934A CN108264203A CN 108264203 A CN108264203 A CN 108264203A CN 201810300934 A CN201810300934 A CN 201810300934A CN 108264203 A CN108264203 A CN 108264203A
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foul smell
paper waste
biology
pipeline
tank
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CN108264203B (en
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谭拥军
赵会芳
马晓鸣
徐根林
徐强
陆祥根
陈建东
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ZHEJIANG RONGSHENG PAPER INDUSTRY HOLDING Co Ltd
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ZHEJIANG RONGSHENG PAPER INDUSTRY HOLDING Co Ltd
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    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F9/00Multistage treatment of water, waste water or sewage
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D53/00Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/02Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D53/00Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34Chemical or biological purification of waste gases
    • B01D53/74General processes for purification of waste gases; Apparatus or devices specially adapted therefor
    • B01D53/84Biological processes
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D53/00Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34Chemical or biological purification of waste gases
    • B01D53/74General processes for purification of waste gases; Apparatus or devices specially adapted therefor
    • B01D53/84Biological processes
    • B01D53/85Biological processes with gas-solid contact
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2251/00Reactants
    • B01D2251/95Specific microorganisms
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2253/00Adsorbents used in seperation treatment of gases and vapours
    • B01D2253/10Inorganic adsorbents
    • B01D2253/102Carbon
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2257/00Components to be removed
    • B01D2257/30Sulfur compounds
    • B01D2257/304Hydrogen sulfide
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2257/00Components to be removed
    • B01D2257/30Sulfur compounds
    • B01D2257/306Organic sulfur compounds, e.g. mercaptans
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2257/00Components to be removed
    • B01D2257/40Nitrogen compounds
    • B01D2257/406Ammonia
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/001Processes for the treatment of water whereby the filtration technique is of importance
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/24Treatment of water, waste water, or sewage by flotation
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/52Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F11/00Treatment of sludge; Devices therefor
    • C02F11/12Treatment of sludge; Devices therefor by de-watering, drying or thickening
    • C02F11/121Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering
    • C02F11/122Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering using filter presses
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2103/00Nature of the water, waste water, sewage or sludge to be treated
    • C02F2103/26Nature of the water, waste water, sewage or sludge to be treated from the processing of plants or parts thereof
    • C02F2103/28Nature of the water, waste water, sewage or sludge to be treated from the processing of plants or parts thereof from the paper or cellulose industry
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2303/00Specific treatment goals
    • C02F2303/02Odour removal or prevention of malodour
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F3/00Biological treatment of water, waste water, or sewage
    • C02F3/30Aerobic and anaerobic processes
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A50/00TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
    • Y02A50/20Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E50/00Technologies for the production of fuel of non-fossil origin
    • Y02E50/30Fuel from waste, e.g. synthetic alcohol or diesel

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Biomedical Technology (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Analytical Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Molecular Biology (AREA)
  • Hydrology & Water Resources (AREA)
  • Water Supply & Treatment (AREA)
  • Organic Chemistry (AREA)
  • Treating Waste Gases (AREA)
  • Activated Sludge Processes (AREA)

Abstract

The present invention relates to a kind of processing systems and method of paper waste foul smell.The system of the present invention includes, by pipeline slanted screen connected in sequence, pretreatment unit, anaerobic tower, aeration tank, secondary settling tank and sludge press filtration unit, further including the multiple filling layers biology spray column and activated carbon adsorption device connected by pipeline;The slanted screen, pretreatment unit, anaerobic tower, aeration tank, secondary settling tank and sludge press filtration unit are connect by pipeline with the multiple filling layers biology spray column, and the pretreatment unit is included through pipeline flotation tank connected in sequence and acidification pool.The present invention accomplishes to link work at selected spots with that in entire areas, comprehensive collection, to slanted screen, flotation tank, acidification pool, anaerobic tower, aeration tank, secondary settling tank and the totally-enclosed collection of sludge treatment device that waste water passes through, accomplish not leak, and the present invention to the removal rate of paper waste foul gas up to more than 99%.In addition, the present invention, using single column biochemical treatment, equipment investment is few, and operating cost is low.

Description

A kind of processing system and method for paper waste foul smell
Technical field:
The present invention relates to Odor control technical fields, and in particular to a kind of processing system and method for paper waste foul smell.
Background technology:
Due to the highly concentrated characteristic of waste paper making wastewater, anaerobic-aerobic biotechnology is obtained in waste paper making wastewater process field Extensive use.Foul smell, especially anaerobic stages can be generated in highly concentrated process of paper-making wastewater treatment and generate a large amount of foul smell, these evils Odour is mainly H2S、NH3, methyl mercaptan, methyl sulfide, amine etc., wherein H2S and NH3Content is more.In the anaerobism of sewage disposal Hydrolysis section, macromolecular or particulate organic matter are broken down into volatile low molecule organic matter VOCs, are rich in paper waste SO4 2-It is reduced to H2S, organic amine are broken down into ammonia, after these waste gas components are discharged into air, form foul gas.Together The sludge that sample wastewater treatment process generates can also generate foul smell in processing.The stink odor and concentration of generation are with sewage, dirt The treatment process of mud is different and different.Due to many facilities such as slanted screen of current our province papermaking enterprise sewage disposal, just heavy Pond, aeration tank, secondary settling tank and sludge treatment device etc. are unenclosed construction, can directly give out foul gas, belong to inorganization Face source emission.
Application of the prior art in highly concentrated paper waste deodorization is seldom, and the waste water foul smell in most paper mills is without group Knit discharge.The waste water in only a few paper mill is also not perfect with prior art processing foul smell, and general treatment effeciency is relatively low, it is difficult to up to standard Discharge.Foul smell in wastewater treatment process is exposed to outer mechanical equipment to some and causes greatly to corrode, and shortens it and uses the longevity Life, causes economic loss.Stench is to pollute one of environment, six big public hazards being detrimental to health simultaneously.Wherein H2S is rotten egg Taste has severe toxicity, and the perception amount of people is 0.00037mg/m3, containing 0.1%H2The gas of S can make human body be poisoned, the higher vulcanization of concentration Hydrogen can make one lethal in a short time.NH3For strong impulse smell, methyl mercaptan is cabbage putrid taste, other sulfur-bearings have Machine compound is putrid taste or undesirable foul smell.These foul gas cause the health of human body of on-site staff Great threat;The stink that distributes in an atmosphere certainly will also influence whether surrounding area simultaneously, and respiratory system to human body disappears The generations such as change system, the circulatory system, nervous system endanger, and directly influence people's health and living standard, severe jamming The daily life of surrounding resident.With the development of papermaking enterprise, odor pollution is also constantly aggravating, and complains as the periphery common people With the key object of complaint, it can also cause some social conflicts when serious, affect social harmony to a certain extent.
At present, the odor treatment method generated in wastewater treatment process mainly has WATER-WASHING METHOD, active carbon adsorption, ozone oxygen Change method, deodorization solution deodorization process, ion deodorization method, chemical washing method and biological odor removal method etc..
WATER-WASHING METHOD is that the characteristic of water can be dissolved in using the main matter in foul smell, makes H in foul smell2S、NH3Gases and water is waited to connect It touches, dissolving, achievees the purpose that deodorization, water consumption is big, less efficient.
Active carbon adsorption is come deodorization using activated carbon to the physisorption of foul smell.Its advantage is that method is simple, Shortcoming is only to be applicable in the processing of low concentration foul smell, and investment and operating cost are very high.
Ozonation is the strong oxidizing property using ozone, aoxidizes the chemical analysis in foul smell, achievees the purpose that deodorization. Ozonation is divided into gas phase and liquid phase, since the chemical reaction that ozone occurs is slower, generally first passes through liquid ablution, goes Except most of odor causing substance, ozone oxidation is then carried out again.
Deodorization solution deodorization process is covered and is neutralized unpleasant using the stronger gas odor of people's acceptable smell The method of stink.The major advantage of this method is simple, small investment and quick.It is difficult to change stink odor completely that shortcoming, which is, May still have certain extent of damage to people and animals, equipment and environment etc..
Ion deodorization method be using high-frequency and high-voltage electrostatic special burst electric discharge generate high density high energy active ion, be allowed to Foul smell contacts, and destroys foul smell molecular chemistry key, the odorless substance of low molecule is resolved into, so as to which gas be made to achieve the purpose that purification.It should Method processing equipment volume is relatively small, and from heavy and light, suitable for occasions such as characteristics of compact layout, narrow fields, but equipment is disposably thrown It is larger to enter expense, operation expense is higher.
Chemical washing method is using chemicals and foul smell after chemical reaction generation is destitute of smell or change that stink is relatively low Product is learned to eliminate the method for foul smell.Such as use chemical mediator (NaOH, NaClO or H2O2) and H2The substances such as S carry out third-order reaction, So as to reach deodorization purpose.The advantages of this method is to change the ingredient of foul smell, reduces foul smell to people and animals, equipment and environment etc. The extent of damage, shortcoming is that investment is big, and operation cost is relatively high, and the product after particularly chemically reacting, which has, causes new environment The possibility and tendency of pollution need strictly to handle the chemical product after washing.
Biological odor removal method is the odor treatment method that the 1950s, Later development got up.The principle of bad smell biological purification It is the microorganism by being attached in reactor on filler, is converted into the pollutant in exhaust gas simply in metabolic processes Inorganic matter (carbon dioxide, water and sulfate radical) and microorganism cellular material, the volatility organic contamination wherein in exhaust gas Object is decomposed into carbon dioxide, water and other simple inorganic matters;Sulfide in sulfur-containing foul pollutant is converted into environment Relatively stable sulfate, nitrogenous compound are converted into nitrate or nitrogen.Biological odor removal method is relative to traditional processing side Method has the characteristics that treatment effeciency is high, operating cost is low, non-secondary pollution.But there is also some problems, such as biofiltration and life Object washing method generally requires double tower combination, and the major function on absorption tower is that the main component of foul smell is transferred in liquid phase, so as to Realize mass transfer process, then with activated sludge process by the metabolism of microorganism handle this partially absorbed stench into The waste water divided, investment is relatively high, and it is mostly divided using a kind of organic filler or inorganic filler as microorganism carrier Solve foul smell.Since single filler tends not to form ideal micropopulation, its adaptability to different foul smell can be influenced, so as to Influence its odor removal efficient;Biological island is generally single column structure, but needs Additional nutrient solution in running, and circulation fluid need to be arranged periodically Put processing;Its spray liquid is generally the water without deodorization functions, so efficiency need to be further improved.In addition it is also micro- just like deodorization The culture of biology, the screening of bacterial strain mix the processing of foul gas, optimization of technological parameter of deodorizing device etc..
It is, therefore, desirable to provide a kind of processing system and method for more applicable paper waste foul smell, to solve the above problems.
Invention content:
The object of the present invention is to provide a kind of processing system and method for paper waste foul smell, to the place of paper waste foul smell Reason accomplishes to link work at selected spots with that in entire areas, comprehensive collection, slanted screen, pretreatment unit, anaerobic tower, aeration tank, secondary settling tank and the dirt passed through to waste water The totally-enclosed collection of mud processing equipment is accomplished not leak.
To achieve the above object, the present invention uses following technical scheme:
The processing system of paper waste foul smell provided by the invention, including:Pass through pipeline slanted screen connected in sequence, pretreatment Unit, anaerobic tower, aeration tank, secondary settling tank and sludge press filtration unit are further included and are sprayed by the multiple filling layers biology that pipeline connects Drench tower and activated carbon adsorption device;The slanted screen, pretreatment unit, anaerobic tower, aeration tank, secondary settling tank and sludge press filtration unit are equal It is connect by pipeline with the multiple filling layers biology spray column, and the pretreatment unit is included through pipeline gas connected in sequence Floating pond and acidification pool.
Processing is sealed at the top of the anaerobic tower.
The pond face of flotation tank, acidification pool and aeration tank, secondary settling tank in the pretreatment unit is sealed processing.
The mesh of the slanted screen is 120~150 mesh, and the slanted screen is sealed processing.
The workshop of the sludge press filtration operation is integrally sealed processing.
Several spray heads are provided with above the multiple filling layers biology spray column, the spray head is fed by pipeline cycle Biological spray liquid, and cycle metering pump is installed on the pipeline being connect with spray head.
The biology spray liquid is compounded by plant extracts and chitosan and is made, and the plant extracts is ginkgo leaf, tea Arbitrary three kinds or more plant extracts in leaf, bamboo, camphortree leaf, pine.
The internal circulating load of the biology spray liquid is 20~30m3/ h, it is primary every 5~10 days supplements.
The filler used in the multiple filling layers biology spray column includes Pall ring, Raschig ring and the biology of multistage arrangement Filler, above-mentioned three kinds of fillers combine in tower, in two layers of arrangement, two layers of total a height of 1~2m.
The biologic packing material is by bamboo charcoal, charcoal, useless flaxen fiber in mass ratio 1:0.3~0.5:0.3~0.5 composition.
And in first layer packing layer, the height ratio of Pall ring, Raschig ring and biologic packing material is 1:1~2:1~2, In second layer filler, the height ratio of Pall ring, Raschig ring and biologic packing material is 1:0.5~1:2~3.
When the operating temperature of the multiple filling layers biology spray column is 30~40 DEG C, pH value is 1.2~2.0, gas stops Between be 8~12 seconds.
In the activated carbon adsorption device material of activated carbon be cocoanut active charcoal, average particle diameter be 8~10 mesh, layer A height of 1~2m, replacement cycle are 5~October, and gas residence time is 8~12 seconds.
The method handled using a kind of above-mentioned processing system of paper waste foul smell paper waste foul smell is specific to walk It is rapid as follows:
The fiber fines in paper waste are recycled by slanted screen first;Then it is given up by pretreatment unit to papermaking Water is pre-processed;The UMIC system for anaerobic treatment used by anaerobic tower handles reducing substances in paper waste; Aeration Aerobic Process for Treatment is carried out using activated sludge process to paper waste in aeration tank;Pass through the water reuse after sedimentation in secondary sedimentation tank or row It puts;It is comprehensively utilized after the sludge press filtration generated after processing;In slanted screen, pretreatment unit, anaerobic tower, aeration tank, secondary settling tank and dirt The foul smell generated in mud press filtration unit processing procedure is passed through multiple filling layers biology spray column level-one deodorization, through multiple filling layers biology Spray column level-one deodorization, then the qualified discharge after activated carbon adsorption device two level deodorization.
The preparation method of biological spray liquid employed in the multiple filling layers biology spray column is specific as follows:First use clear water By powdered plant extract stirring and dissolving, a concentration of 0.3~0.5% biological spray liquid is then configured in circulating water pool, In, the mixing speed is 300~500 turns/min, and solution temperature is 20~40 DEG C, and mixing time is 10~30min.
Further, the pretreating process described in above-mentioned technical proposal is specially:First waste water is carried out with flotation tank just Step processing, removes most suspended substances;Then pre-acidified processing is carried out by acidification pool, pre-acidified retention time of sewage is 4~5 Hour, pH value is 6.5~7.5, and pre-acidified degree is 40~50%.
A kind of processing system of paper waste foul smell of the present invention and the advantageous effect of method:
It cannot accomplish to link work at selected spots with that in entire areas for the prior art, comprehensive collection, therefore still have the point of release, papermaking odor pollution problem, The present invention accomplishes to link work at selected spots with that in entire areas, comprehensive collection, slanted screen, pretreatment unit, anaerobic tower, aeration tank, the secondary settling tank passed through to waste water With the totally-enclosed collection of sludge treatment device, accomplish not leak;
It uses the technology that biology spray deodorization is combined with microorganism decomposition deodorization, and the absorption of foul smell and decomposable process are only Need to can be fully completed in a tower, realize double tower unification, structure closely, small investment.The present invention uses plant extract The biological spray liquid circulated sprinkling foul smell that object is prepared, biology spray liquid energy absorb rapidly the effluviums such as hydrogen sulfide, methyl mercaptan, ammonia Body occurs the reactions such as polymerization, substitution, displacement, absorption, original polluted gas odor molecules structure is made to change, is allowed to become Nontoxic, tasteless molecule, so as to achieve the effect that deodorization.Biological spray liquid provides source as microorganism simultaneously, in circulated sprinkling mistake Microorganism is promoted to be grown on filler in journey, utilize the metabolic decomposing H of microorganism2S、NH3Foul smell are waited, so as to fulfill biology Spray deodorization is combined with microorganism decomposition deodorization, and compared to the biological deodorization system of clear water spray, the present invention has higher remove Smelly efficiency.In addition biological spray liquid also acts as the effect for providing microbial nutrition source, so the present invention need not provide additional battalion Nutrient solution without regular discharge cycle liquid, also mitigates the burden of wastewater treatment;
It is filled out simultaneously also using Pall ring, Raschig ring and the biologic packing material of independent research as microorganism carrier by a variety of Material combines multi-tier arrangement in tower, gives full play to various types of filler advantage, multiple types micropopulation can be formed on filler, is improved To the adaptability of different foul smell, so as to effectively improve removal efficiency;
Using biology spray and activated carbon adsorption two level deodorization technology, this yet there are no correlation in paper waste deodorization at home Report.Major part H can be achieved in biology spray2S、NH3, the foul smell such as methyl mercaptan decomposition, after activated carbon physical absorption is as deodorization Continuation of insurance barrier, the technical combinations treatment effeciency is high, removal effect is apparent, to the removal rate of main foul gas up to more than 99%, makes Exhaust reaches《Emission standard for odor pollutants》(GB14554-93) secondary discharge standard.The two level deodorization technology of the present invention does not have Using harmful chemical agent, energy demand is cheap, does not generate secondary pollution, and last product is benign, is a kind of true The highly concentrated paper waste deodorizing method of positive green;
Using single column biochemical treatment, equipment investment is few, and Additional nutrient solution is not needed in system operation, and circulation fluid is not arranged It puts, operating cost is low, and odor removal efficient is high, solves equipment etching problem and harm and pollution to health and ambient enviroment Problem.
Description of the drawings:
Fig. 1 is a kind of processing system block diagram of paper waste foul smell of the present invention;
In figure:1- slanted screens, 2- pretreatment units, 3- anaerobic towers, 4- aeration tanks, 5- secondary settling tanks, 6- sludge press filtration units, 7- Multiple filling layers biology spray column, 8- activated carbon adsorption devices, 9- pipelines.
Specific embodiment:
Below in conjunction with the attached drawing in the embodiment of the present invention, the technical solution in the embodiment of the present invention is carried out clear, complete Site preparation describes, it is clear that described embodiment is only the part of the embodiment of the present invention, instead of all the embodiments.Base Embodiment in the present invention, those of ordinary skill in the art obtained without creative efforts it is all its His embodiment, shall fall within the protection scope of the present invention.
It is to be appreciated that the directional instruction (such as up, down, left, right, before and after ...) of institute is only used in the embodiment of the present invention In explaining relative position relation, motion conditions under a certain particular pose (as shown in drawings) between each component etc., if should When particular pose changes, then directionality instruction also correspondingly changes correspondingly.
In addition, the technical solution between each embodiment can be combined with each other, but must be with ordinary skill Personnel can be implemented as basis, and this technical side is will be understood that when the combination appearance of technical solution is conflicting or can not realize The combination of case is not present, also not the present invention claims protection domain within.
According to Fig. 1, the processing system of paper waste foul smell provided by the invention, including:It is sequentially connected with by pipeline 9 Slanted screen 1, pretreatment unit 2, anaerobic tower 3, aeration tank 4, secondary settling tank 5 and sludge press filtration unit 6, further include through pipeline 9 The multiple filling layers biology spray column 7 and activated carbon adsorption device 8 of connection;The slanted screen 1, pretreatment unit 2, anaerobic tower 3, aeration Pond 4, secondary settling tank 5 and sludge press filtration unit 6 are connect, and the pre- place by pipeline 9 with the multiple filling layers biology spray column 7 Unit 2 is managed to include through 9 flotation tank connected in sequence of pipeline and acidification pool, and place is sealed to the top of the anaerobic tower 3 It manages, the pond face of flotation tank, acidification pool and aeration tank 4, secondary settling tank 5 in the pretreatment unit 2 is sealed processing, described The mesh of slanted screen 1 is 120~150 mesh, and the slanted screen 1 is sealed processing, and the workshop of 6 operation of sludge press filtration unit is whole Be sealed processing so that the present invention can link work at selected spots with that in entire areas, comprehensive collection, to waste water pass through slanted screen 1, pretreatment unit 2, detest Oxygen column 3, the 6 totally-enclosed collection of aeration tank 4, secondary settling tank 5 and sludge press filtration unit, accomplish not leak.
Further, 7 top of the spray column of multiple filling layers biology described in above-mentioned technical proposal is provided with several spray heads, institute It states spray head and biological spray liquid is fed by the cycle of pipeline 9, and cycle metering is installed on the pipeline 9 being connect with spray head Pump.
Further, biological spray liquid described in above-mentioned technical proposal is made by 3~5 Plant Extracts and chitosan compounding , the plant extracts is the arbitrary three kinds or more plant extract in ginkgo leaf, tealeaves, bamboo, camphortree leaf, pine Object;When actually being sprayed, the internal circulating load of the biology spray liquid is 20~30m3/ h, and it is primary every 5~10 days supplements.
Further, the filler used in the multiple filling layers biology spray column 7 described in above-mentioned technical proposal includes multistage Pall ring, Raschig ring and the biologic packing material of arrangement, above-mentioned three kinds of fillers combine in tower, are arranged in two layers, total a height of the 1 of two layers ~2m, and in first layer packing layer, the height ratio of Pall ring, Raschig ring and biologic packing material is 1:1~2:1~2, second In layer filler, the height ratio of Pall ring, Raschig ring and biologic packing material is 1:0.5~1:2~3, and further, the biology Filler is by bamboo charcoal, charcoal, useless flaxen fiber in mass ratio 1:0.3~0.5:0.3~0.5 composition, in actual job, the multilayer The operating temperature of filler biological spray column 7 is 30~40 DEG C, pH value is 1.2~2.0, gas residence time is 8~12 seconds.
Further, the material of activated carbon is cocoanut active charcoal in activated carbon adsorption device 8 described in above-mentioned technical proposal, Average particle diameter is 8~10 mesh, and floor height is 1~2m, and the replacement cycle is 5~October, and gas residence time is 8~12 seconds.
The method handled using a kind of above-mentioned processing system of paper waste foul smell paper waste foul smell is specific to walk It is rapid as follows:
The fiber fines in paper waste are recycled by slanted screen 1 first;Then by pretreatment unit 2 to papermaking Waste water is pre-processed;By anaerobic tower 3 use UMIC system for anaerobic treatment to reducing substances in paper waste at Reason;Aeration Aerobic Process for Treatment is carried out using activated sludge process to paper waste in aeration tank 4;Water after being precipitated by secondary settling tank 5 returns With or discharge;The sludge generated after processing comprehensively utilizes after 6 press filtration of sludge press filtration unit;In slanted screen 1, pretreatment unit 2, detest The foul smell generated in oxygen column 3,6 processing procedure of aeration tank 4, secondary settling tank 5 and sludge press filtration unit is passed through the spray of multiple filling layers biology 7 level-one deodorization of tower is drenched, after the 7 level-one deodorization of multiple filling layers biology spray column, then is reached after 8 two level deodorization of activated carbon adsorption device Mark discharge.
The preparation method of biological spray liquid employed in the multiple filling layers biology spray column 7 is specific as follows:First with clear Then powdered plant extract stirring and dissolving is configured to a concentration of 0.3~0.5% biological spray liquid by water in circulating water pool, Wherein, the mixing speed is 300~500 turns/min, and solution temperature is 20~40 DEG C, and mixing time is 10~30min.
Further, the pretreating process described in above-mentioned technical proposal is specially:First waste water is carried out with flotation tank just Step processing, removes most suspended substances;Then pre-acidified processing is carried out by acidification pool, pre-acidified retention time of sewage is 4~5 Hour, pH value is 6.5~7.5, and pre-acidified degree is 40~50%.
The present invention is detected foul smell (be biological spray column foul smell) concentration after level-one deodorization, each component foul smell Concentration range is as follows:Concentration≤30mg/L of foul smell molecule, ammonia≤2mg/L, hydrogen sulfide≤0.1mg/L, mercaptan≤0.01mg/L.
The odor concentration range escaped from activated carbon adsorption device:Odor concentration≤25mg/L, ammonia≤1mg/L, hydrogen sulfide ≤ 0.05mg/L, mercaptan≤0.005mg/L, odor removal efficient is up to more than 99%.
Finally it should be noted that:The above embodiments are merely illustrative of the technical scheme of the present invention and are not intended to be limiting thereof, to the greatest extent Pipe is described in detail the present invention with reference to above-described embodiment, those of ordinary skills in the art should understand that:Still may be used It is modified or replaced equivalently with the specific embodiment to the present invention, and is repaiied without departing from any of spirit and scope of the invention Change or equivalent replacement, should all cover in present claims range.

Claims (10)

1. a kind of processing system of paper waste foul smell, including:Pass through pipeline slanted screen connected in sequence, pretreatment unit, anaerobism Tower, aeration tank, secondary settling tank and sludge press filtration unit, it is characterised in that:It further includes and is sprayed by the multiple filling layers biology that pipeline connects Drench tower and activated carbon adsorption device;The slanted screen, pretreatment unit, anaerobic tower, aeration tank, secondary settling tank and sludge press filtration unit are equal It is connect by pipeline with the multiple filling layers biology spray column, and the pretreatment unit is included through pipeline gas connected in sequence Floating pond and acidification pool.
2. the processing system of paper waste foul smell according to claim 1, it is characterised in that:The top of the anaerobic tower into Row encapsulation process;The pond face of flotation tank, acidification pool and aeration tank, secondary settling tank in the pretreatment unit is sealed place Reason;The mesh of the slanted screen is 120~150 mesh, and the slanted screen is sealed processing;The workshop of the sludge press filtration operation is whole It is sealed processing;Several spray heads are provided with above the multiple filling layers biology spray column, the spray head is followed by pipeline Ring feeds biological spray liquid, and cycle metering pump is equipped on the pipeline being connect with spray head.
3. the processing system of paper waste foul smell according to claim 2, it is characterised in that:The biology spray liquid is by planting Object extract is made with chitosan compounding, and the plant extracts is arbitrary in ginkgo leaf, tealeaves, bamboo, camphortree leaf, pine Three kinds or more plant extracts;The internal circulating load of the biology spray liquid is 20~30m3/ h supplemented one every 5~10 days It is secondary.
4. the processing system of paper waste foul smell according to claim 2, it is characterised in that:The multiple filling layers biology The filler used in spray column includes Pall ring, Raschig ring and the biologic packing material of multistage arrangement, above-mentioned three kinds of fillers group in tower It closes, in two layers of arrangement, two layers of total a height of 1~2m.
5. the processing system of paper waste foul smell according to claim 4, it is characterised in that:The biologic packing material is by bamboo Charcoal, charcoal, useless flaxen fiber in mass ratio 1:0.3~0.5:0.3~0.5 composition.
6. the processing system of paper waste foul smell according to claim 5, it is characterised in that:In first layer packing layer, The height ratio of Pall ring, Raschig ring and biologic packing material is 1:1~2:1~2, in second layer filler, Pall ring, Raschig ring and The height ratio of biologic packing material is 1:0.5~1:2~3.
7. the processing system of paper waste foul smell according to claim 1 or 2, it is characterised in that:The multiple filling layers life The operating temperature of object spray column is 30~40 DEG C, pH value is 1.2~2.0, gas residence time is 8~12 seconds.
8. the processing system of paper waste foul smell according to claim 1 or 2, it is characterised in that:The activated carbon adsorption In device the material of activated carbon be cocoanut active charcoal, average particle diameter be 8~10 mesh, floor height be 1~2m, the replacement cycle 5 ~October, gas residence time are 8~12 seconds.
9. a kind of processing system of paper waste foul smell using described in claims 1 or 22 handles paper waste foul smell Method, it is characterised in that:It is as follows:
The fiber fines in paper waste are recycled by slanted screen first;Then by pretreatment unit to paper waste into Row pretreatment;The UMIC system for anaerobic treatment used by anaerobic tower handles reducing substances in paper waste;It is exposing Gas pond carries out aeration Aerobic Process for Treatment to paper waste using activated sludge process;Pass through the water reuse or discharge after sedimentation in secondary sedimentation tank; It is comprehensively utilized after the sludge press filtration generated after processing;In slanted screen, pretreatment unit, anaerobic tower, aeration tank, secondary settling tank and sludge pressure The foul smell generated during filter cell processing is passed through multiple filling layers biology spray column level-one deodorization, is sprayed through multiple filling layers biology Tower level-one deodorization, then the qualified discharge after activated carbon adsorption device two level deodorization;It is adopted in the multiple filling layers biology spray column The preparation method of biological spray liquid is specific as follows:First with clear water then powdered plant extract stirring and dissolving is being recycled A concentration of 0.3~0.5% biological spray liquid is configured in pond, wherein, the mixing speed is 300~500 turns/min, is dissolved Temperature is 20~40 DEG C, and mixing time is 10~30min.
10. the processing method of paper waste foul smell according to claim 9, it is characterised in that:The pretreating process Specially:Preliminary treatment is first carried out to waste water with flotation tank, removes most suspended substances;Then pre-acidified is carried out by acidification pool Processing, pre-acidified retention time of sewage are 4~5 hours, and pH value is 6.5~7.5, and pre-acidified degree is 40~50%.
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