CN105693007B - It is a kind of can be with the chemical engineering sewage advanced treatment system of deodorization - Google Patents
It is a kind of can be with the chemical engineering sewage advanced treatment system of deodorization Download PDFInfo
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- CN105693007B CN105693007B CN201510418051.0A CN201510418051A CN105693007B CN 105693007 B CN105693007 B CN 105693007B CN 201510418051 A CN201510418051 A CN 201510418051A CN 105693007 B CN105693007 B CN 105693007B
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- Y—GENERAL 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
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Abstract
The present invention provides one kind can be with the chemical engineering sewage advanced treatment system of deodorization, including coarse rack, lift pump room, fine fack, rotary drum Microfilter, acid-base accommodation pond, flocculation basin sedimentation basin, PVA gel pond, sedimentation basin, membrane bioreactor, secondary settling tank, EV fibre filter, ultrasonic sterilization pond, disinfection by ultraviolet light pond, water outlet lift pump room, mud concentration basin is also respectively connected in flocculation basin sedimentation basin, sedimentation basin, secondary settling tank simultaneously, and the outlet of mud concentration basin is connected between sludge dewatering；Acid-base accommodation pond is connected with exhaust air deodorization device；Flocculant includes following components: alkali paper-making sludge: sodium sulfite or sodium thiosulfate；The chloro- 2- hydroxypropyl-trimethyl ammonium chloride of 3-.By sewage disposal system of the invention, water quality can reach and be higher than the discharge standard of " urban wastewater treatment firm pollutant emission standard " (GB18918-2002) level-one A, while can also carry out deodorization to the exhaust gas of generation.
Description
Technical field
The present invention relates to one kind to belong to technical field of sewage with the chemical engineering sewage advanced treatment system of deodorization.
Background technique
Industrial enterprise's quantity of wastewater effluent in China is in higher level, and on February 25th, 2010, national environmental protection portion was public
" national Pollutant source investigation bulletin for the first time " display of cloth: 2007, national industrial wastewater yield was 738.33 hundred million tons, warp
The amount of 140652 sets of Industrial Wastewater Treatment facilities processing is about 458.52 hundred million tons, and handling rate is about 62%.At the sewage of industrial enterprise
Reason problem becomes always the matter of utmost importance for restricting Industrial Economic Development.
The sewage discharge of chemical company accounts for very big a part of specific gravity in trade effluent, and pharmacy sewage belongs to chemical engineering sewage
A major class, usually need to use the chemical reagent of many organic or inorganics in pharmacy procedure, generated in last production process
Sewage largely endangers the micro- life of nocuousness of human health in addition to also containing containing a large amount of organic and inorganic pollution beyond the region of objective existence
Object, if without processing direct emission serious harm will can be generated to ecological environment and human health.And now with
The enhancing of the environmental consciousness of people also more enhances the concern of sewage treatment.
Meanwhile currently, China is higher and higher to the standard requirements of sewage treatment.For example Jiangsu Province is in order to protect Taihu Lake ring
Border, the water outlet for the sewage treatment plant for requiring Ring theory all in Taihu Lake water pollution control programme of work need to execute " city
Town Wastewater Treatment discharge standard " (GB18918-2002) level-one A discharge standard and more stringent ground
Square pollutant emission standard.This standard is compared to " urban wastewater treatment firm pollutant emission standard " (GB18918-2002)
It is more stringent to the BOD5 in sewage treatment, the requirements such as CODCr, SS, TN, NH3- N, TP for level-one B standard.
In the past, following processing technological flow was substantially used for the processing of sewage: wastewater influent → inlet pumping station → just
Heavy pond → biological reaction pool → secondary settling tank → sterilization pool → draining, this sewage treatment process can not sufficiently dispose dirt
Pollutant and impurity in water.
Meanwhile in sewage disposal process, primary sedimentation tank or biological reaction pool and etc. before, it will usually use adjusting
Pond, still, conditioning tank have given out a large amount of foul waste gas in wastewater treatment process, seriously pollute surrounding enviroment, exhaust gas
Main component is inorganic foul gas and the volatile organic matters such as H2S, NH3.If these foul smell are without processing, directly
Discharge as in air, can health to people and environmental protection cause serious harm.Therefore, in sewage disposal process
In, we otherwise the quality problem that is solely focused on that treated, summary pay close attention to the deodorization problem in treatment process.
Therefore, in order to protect environment, also for the development of industrial economy, it is necessary to develop a kind of new sewage treatment system
System, the system can carry out advanced treating to sewage, and water quality reaches and is higher than " urban wastewater treatment firm such that treated
Pollutant emission standard " (GB18918-2002) level-one A discharge standard, while guarantee advanced treatment of wastewater when
It waits, may also reach up the purpose of deodorization.
Summary of the invention
Goal of the invention: It is an object of the present invention to solve the deficiency of the existing technology and provide one kind can be with the chemical industry of deodorization
Advanced sewage treatment system.
Technical solution: in order to achieve the goal above, it is of the invention it is a kind of can with the chemical engineering sewage advanced treatment system of deodorization,
Including coarse rack, lift pump room, fine fack, rotary drum Microfilter, acid-base accommodation pond, flocculation basin sedimentation basin, PVA gel pond, precipitating
Pond, membrane bioreactor, secondary settling tank, EV fibre filter, ultrasonic sterilization pond, disinfection by ultraviolet light pond, water outlet lift pump room, it is above-mentioned
Device is sequentially connected by pipeline；Mud concentration is also respectively connected in the flocculation basin sedimentation basin, sedimentation basin, secondary settling tank simultaneously
The outlet in pond, the mud concentration basin is connected between sludge dewatering, and the acid-base accommodation pond is equipped with exhaust outlet, and the exhaust outlet connects
Be connected to exhaust air deodorization device, the exhaust air deodorization device include spray column, bacteria bed, air-introduced machine exhaust gas air-introduced machine effect
Under, successively it is discharged into air again after spray column and bacteria bed deodorization；
The flocculant that the flocculation basin sedimentation basin uses includes following components by mass fraction:
Alkali paper-making sludge: 100 parts；
Sodium sulfite or sodium thiosulfate: 25-30 parts；
The chloro- 2- hydroxypropyl-trimethyl ammonium chloride of 3-: 45-55 parts.
Intake pump is equipped in the present invention in lift pump room, realizes the primary promotion of sewage, mainly to realize subsequent processing
The gravity stream of technique；
Due to containing a large amount of suspended matter and floating material in sewage, entering water treatment building can sink under water or float on
The water surface affects the normal operation of equipment, makes it be difficult to play the effect of should having, it is necessary to be removed.In order to remove this
Suspension or floating substance a bit, therefore coarse rack is provided with before intake pump is promoted, provided with fine fack, setting after intake pump promotion
Coarse rack and fine fack can retain the suspended matter or floating material of different-grain diameter, mitigate the pressure of subsequent processing device；
The rotary drum Microfilter being equipped with can remove organic and inorganic fragment and various compared to common filter plant from water
Phytoplankton, algae or fibre pulp of type etc. can mitigate the pressure of subsequent reactions system；
The acid-base accommodation pond being equipped with can will enter the sewage in pond and carry out pH adjusting, by pH to suitable numerical value, so as to
In the decontamination processing program for implementing next step；
The flocculation sedimentation tank being equipped with carries out flocculation reaction to the impurity in sewage, so by the way that flocculant is added in flocculation zone
It is precipitated afterwards in settling zone, can remove the BOD of SS, 20%-30% of 40%-55% in sewage, reduce subsequent structures
Load；
The PVA gel pond being equipped with is handled sewage using porous PVA biologic packing material, and PVA is different from general raw
Object filler, not only surface can effectively be enriched with microorganism PVA bead, but also it is internal with countless micro holes
Hole is also effectively enriched with for a large amount of microorganism, to greatly increase biomass in PVA reactor, is had higher
Volumetric loading and good mud decrement effect, especially CODCr removal effect is more excellent, while PVA gelled pill has
Good hydrophily, compared to than other aerobic process, PVA technique has starting speed faster；
The sedimentation basin being equipped with is separated by solid-liquid separation the sewage by the processing of PVA gel pond, under the clear liquid isolated enters
The subsequent processing of one step, the mud isolated enter mud concentration basin and carry out subsequent reactions；
The membrane bioreactor being equipped with can be handled the clear liquid flowed out in sedimentation basin, using not characteristic can be with
CODcr, TN and TP in sewage are removed well, and removal rate can respectively reach 70%, 50%, 60%；
The secondary settling tank being equipped with precipitates the water Jing Guo Membrane Bioreactor for Wastewater Treatment again, is separated by solid-liquid separation, separation
Clear liquid out enters the subsequent processing of next step, and the mud isolated enters mud concentration basin and carries out subsequent reactions；
Equipped with EV fibre filter, filtration treatment again, the filter tank phase are carried out to the clear liquid obtained after secondary settling tank
For common filter plant, which uses rotor type fibre filtrate, relative to other type filtrates, rotor
Formula fiber filtering, which has the following characteristics that (1) both, has the characteristic of granule filter material, while also with the dual spy of fiber filtering characteristic
Point；(2) can form very ideal filter bed, voidage be in the horizontal plane it is uniform, on the vertical plane from top to bottom
It is to be distributed in up big and down small change of gradient, can guarantees high-precision filtration and the filtering of high filtering velocity simultaneously；(3) backwash is thorough, uses water
Amount is few: rotor drives fibre bundle rotation, waves when backwash, mutually impacts, accelerates the suspension adhered on fibre bundle
The separation of grain improves the cleaning speed of filtrate, saves backwash water amount；(4) there is oleophobic property, when operation after surface treated
It is not easy to wind, is not easy knotting and resistance to backwash.Therefore the SS that 80% or more can be effectively removed using EV fibre filter, to BOD5
Also there is the removal rate of 30%-50% with COD；
Equipped with ultrasonic sterilization pond, make full use of the property of ultrasonic wave, can be very good except in decontaminated water CODCr,
The substances such as NH3- N, meanwhile, ultrasonic technique is used in combination with ultraviolet light, Disinfection Effect is far superior to used alone ultraviolet
Line disinfection, can make the removal effect of hardly degraded organic substance more ideal, meanwhile, the controllability of ultrasonic technology is strong, is easy to adjust
Whole operating status, it is adaptable to the variation of waste water quality water；
The disinfection by ultraviolet light pond being equipped with further carries out disinfection by ultraviolet light processing to water, and UV energy makes thin in water
The DNA internal structure of bacterium, virus and other pathogens is destroyed, and is lost activity and is killed, water quality obtains sterilizing and purifying；
Be equipped with water outlet lift pump room in the rear end in disinfection by ultraviolet light pond, it can be ensured that Chinese effluent after decontamination it is smooth；
The exhaust air deodorization device being equipped with can carry out deodorization to the foul smell in acid-base accommodation pond, first in air-introduced machine
Under the action of, foul smell is introduced into spray column, is then handled again by the biologic packing material in bacteria bed foul smell, exhaust gas
In various odorant pollutants live away from home on biologic packing material growth a large amount of microbial actions under, be oxidized to H2SO4, CO2 and
H2O is purified exhaust gas, and purification gas is discharged into atmosphere, to protect environment, avoid environmental pollution and human health by
To harm；
The flocculant of use is the flocculant prepared using the sludge of recycling, it can sufficiently recycling sludge has
The new flocculant of available one kind, for common aluminium salt and Ferric Salt Flocculants, flocculating effect is more preferable.
The pitch of the coarse rack is 20-25mm, and the pitch of the fine fack is 8-10mm.
Filled with spherical PVA gel particle in PVA gel pond, the average grain diameter of the PVA gel particle is
5mm, the volume of the PVA gel particle account for the 1/8-1/10 of PVA gel pond effective volume.Spherical gel particle, with water
Contact area it is maximum, the filler under identical material can be made, treatment effect is best, meanwhile, the gel particle body of use
Product can both guarantee that wastewater treatment efficiency had under this dosage and be unlikely to waste material.
Aperture≤5mm grid is equipped in PVA gel pond, the running temperature in PVA gel pond is 30-35 DEG C.
At this temperature, gel rubber material is best to the treatment effect of sewage, while the grid being equipped with can prevent PVA bead stream
It loses, to guarantee the wastewater treatment efficiency of PVA bead.
The subtraction paper mill sludge is that the waste water generated in subtraction paper making process takes off by molysite coagulating sedimentation, sludge
Water recycles gained after air-drying, wherein including: water 5-10%, lignin 40-45%, cellulose 8-12%, remaining ingredient by mass fraction
For the soil grains of sand and inorganic salt impurities.
Diversion trench and convection current gallery are equipped in the acid-base accommodation pond.Diversion trench is uniformly distributed water and is allowed to be formed excessive
Stream falls exposure form, and convection current gallery Shi Ge road waste water generates convection current, and raw water mixes homogeneous, to guarantee the optimum efficiency of subsequent processing.
The bottom external of the spray column and bacteria bed has been respectively coupled circulating water chennel and water circulating pump, and inside is equipped with
The top of packing layer, packing layer is equipped with spray equipment.
Two layers of packing layer is equipped in the bacteria bed, the filler is biological compounded mix, and the compounded mix presses matter
Measuring score includes following components:
Wood fragments consider 30-40 parts to be worth doing；
30-40 parts of peat；
30-40 parts of compost；
6-10 parts of palm fibre；
12-16 parts of column-shaped active carbon；
10-16 parts of coconut husk；
6-10 parts of diatomite.The composite biological packing can have good apposition growth to the microorganism in exhaust gas
Characteristic, and improve the gas permeability of filler and the rigid structure of whole biologic packing material to a certain extent.
The membrane bioreactor be bioreactor of dynamic membrane, membrane material use active carbon sponge, aperture 500um,
Thick 1cm；The arrangement mode of membrane module is lateral, longitudinal each 2 row, and every row is individually discharged.Active carbon sponge is as dynamic film bio
The film base material of reactor can organically combine the absorption property of active carbon and the strainability of sponge, and active carbon sponge is to use
Macromolecule binding material is by the stronger powdery photocatalytic active carbon appendix of high-quality, absorption property in mistake manufactured on polyurethane foam carrier
Filter material material, carbon content have good absorption property in 30-50%；Meanwhile active carbon sponge has some characteristics of sponge,
Such as higher porosity, good strainability, so that preventing membrane pollution ability is enhanced.
The utility model has the advantages that provided by the invention can have with the chemical engineering sewage advanced treatment system of deodorization compared with prior art
It has the advantage that
Of the invention can be with the chemical engineering sewage advanced treatment system of deodorization, and by biological treatment, (processing of PVA gel pond, film are raw
Object reactor for treatment) and physical treatment (filtering of EV fibre filter), chemical treatment (flocculation sedimentation tank processing) combine, Ke Yishi
Advanced treating now is carried out to sewage, so that wastewater treatment efficiency is more superior, while also reducing energy consumption, it can by of the invention
With the chemical engineering sewage advanced treatment system of deodorization, water quality can reach and be higher than " urban wastewater treatment firm pollutant emission standard "
The discharge standard of (GB18918-2002) level-one A；For simultaneously in flocculation basin using the paper mill sludge preparation of recycling
Flocculant has saved resource, and improve flocculated effect；Exhaust air deodorization device is increased simultaneously, to sewage disposal process
The exhaust gas of middle generation carries out deodorization, purifies exhaust gas, avoids exhaust gas discharge as caused in air to human health and environmental protection
Harm.
Detailed description of the invention
Fig. 1 be it is provided in an embodiment of the present invention can be with the structural schematic diagram of the chemical engineering sewage advanced treatment system of deodorization；
Fig. 2 is exhaust air deodorization device structural schematic diagram provided in an embodiment of the present invention；
In figure: 1- coarse rack, 2- lift pump room, 3- fine fack, 4- rotary drum Microfilter, 5- acid-base accommodation pond, 6- flocculation basin
Sedimentation basin, 7- PVA gel pond, 8- sedimentation basin, 9- membrane bioreactor, 10- secondary settling tank, 11- EV fibre filter, 12- ultrasound
Wave sterilization pool, 13- disinfection by ultraviolet light pond, 14- water outlet lift pump room, 15- mud concentration basin, between 16- sludge dewatering, 17- exhaust gas
Deodorization device, 171- spray column, 172- bacteria bed, 173- air-introduced machine, 174- water circulating pump, 175- circulating water chennel, 176- spray
Shower device.
Specific embodiment
Below in conjunction with specific embodiment, the present invention is described in detail, but illustrates protection scope of the present invention simultaneously simultaneously
It is not limited to the specific range of the present embodiment, based on the embodiments of the present invention, those of ordinary skill in the art are not making
Every other embodiment obtained, shall fall within the protection scope of the present invention under the premise of creative work.
Embodiment 1
It is as illustrated in fig. 1 and 2:
It is a kind of can be with the chemical engineering sewage advanced treatment system of deodorization, including coarse rack 1, lift pump room 2, fine fack 3, rotary drum
Microfilter 4, acid-base accommodation pond 5, flocculation basin sedimentation basin 6, PVA gel pond 7, sedimentation basin 8, membrane bioreactor 9, secondary settling tank 10,
EV fibre filter 11, ultrasonic sterilization pond 12, disinfection by ultraviolet light pond 13, water outlet lift pump room 14, above-mentioned apparatus by pipeline according to
Secondary connection；Mud concentration basin 15, the silt is also respectively connected simultaneously in the flocculation basin sedimentation basin 6, sedimentation basin 8, secondary settling tank 10
The outlet of mud thickener 15 is connected with 16 between sludge dewatering；The acid-base accommodation pond 5 is equipped with exhaust outlet, and the exhaust outlet is connected with
Exhaust air deodorization device 17, the exhaust air deodorization device 17 include spray column 171, bacteria bed 172, air-introduced machine 173, and exhaust gas is drawing
Under the action of blower 173, successively it is discharged into air again after 172 deodorization of spray column 171 and bacteria bed, the spray column
171 and the bottom external of bacteria bed 172 be respectively coupled circulating water chennel 175 and water circulating pump 174, inside is equipped with filler
The top of layer, packing layer is equipped with spray equipment 176；The pitch of the coarse rack 1 is 20mm, and the pitch of the fine fack 3 is
8mm；Diversion trench and convection current gallery are equipped in the acid-base accommodation pond 5.
Filled with spherical PVA gel particle in PVA gel pond 7, the average grain diameter of the PVA gel particle is
5mm, the volume of the PVA gel particle account for the 1/8 of 7 effective volume of PVA gel pond.
The grid of aperture 5mm is equipped in PVA gel pond 7, the running temperature in PVA gel pond 7 is 30 DEG C.
The membrane bioreactor 9 be bioreactor of dynamic membrane, membrane material use active carbon sponge, aperture 500um,
Thick 1cm；The arrangement mode of membrane module is lateral, longitudinal each 2 row, and every row is individually discharged.
The flocculant that the flocculation sedimentation tank 6 uses includes following components by mass fraction:
Alkali paper-making sludge: 100 parts；
Sodium sulfite or sodium thiosulfate: 25 parts；
The chloro- 2- hydroxypropyl-trimethyl ammonium chloride of 3-: 45 parts.
The subtraction paper mill sludge is that the waste water generated in subtraction paper making process takes off by molysite coagulating sedimentation, sludge
Water recycles gained after air-drying, wherein including: water 5%, lignin 40%, cellulose 8% by mass fraction, remaining ingredient is that soil is husky
Grain and inorganic salt impurities.
Two layers of packing layer is equipped in the bacteria bed 172, the filler is biological compounded mix, and the compounded mix is pressed
Mass fraction includes following components:
Wood fragments consider 30 parts to be worth doing；
30 parts of peat；
30 parts of compost；
6 parts of palm fibre；
12 parts of column-shaped active carbon；
10 parts of coconut husk；
6 parts of diatomite.
Embodiment 2
It is as illustrated in fig. 1 and 2:
It is a kind of can be with the chemical engineering sewage advanced treatment system of deodorization, including coarse rack 1, lift pump room 2, fine fack 3, rotary drum
Microfilter 4, acid-base accommodation pond 5, flocculation basin sedimentation basin 6, PVA gel pond 7, sedimentation basin 8, membrane bioreactor 9, secondary settling tank 10,
EV fibre filter 11, ultrasonic sterilization pond 12, disinfection by ultraviolet light pond 13, water outlet lift pump room 14, above-mentioned apparatus by pipeline according to
Secondary connection；Mud concentration basin 15, the silt is also respectively connected simultaneously in the flocculation basin sedimentation basin 6, sedimentation basin 8, secondary settling tank 10
The outlet of mud thickener 15 is connected with 16 between sludge dewatering；The acid-base accommodation pond 5 is equipped with exhaust outlet, and the exhaust outlet is connected with
Exhaust air deodorization device 17, the exhaust air deodorization device 17 include spray column 171, bacteria bed 172, air-introduced machine 173, and exhaust gas is drawing
Under the action of blower 173, successively it is discharged into air again after 172 deodorization of spray column 171 and bacteria bed, the spray column
171 and the bottom external of bacteria bed 172 be respectively coupled circulating water chennel 175 and water circulating pump 174, inside is equipped with filler
The top of layer, packing layer is equipped with spray equipment 176；The pitch of the coarse rack 1 is 22mm, and the pitch of the fine fack 3 is
9mm；Diversion trench and convection current gallery are equipped in the acid-base accommodation pond 5.
Filled with spherical PVA gel particle in PVA gel pond 7, the average grain diameter of the PVA gel particle is
5mm, the volume of the PVA gel particle account for the 1/9 of 7 effective volume of PVA gel pond.
The grid of aperture 4mm is equipped in PVA gel pond 7, the running temperature in PVA gel pond 7 is 33 DEG C.
The membrane bioreactor 9 be bioreactor of dynamic membrane, membrane material use active carbon sponge, aperture 500um,
Thick 1cm；The arrangement mode of membrane module is lateral, longitudinal each 2 row, and every row is individually discharged.
The flocculant that the flocculation sedimentation tank 6 uses includes following components by mass fraction:
Alkali paper-making sludge: 100 parts；
Sodium sulfite or sodium thiosulfate: 28 parts；
The chloro- 2- hydroxypropyl-trimethyl ammonium chloride of 3-: 50 parts.
The subtraction paper mill sludge is that the waste water generated in subtraction paper making process takes off by molysite coagulating sedimentation, sludge
Water recycles gained after air-drying, wherein including: water 8%, lignin 42%, cellulose 10% by mass fraction, remaining ingredient is that soil is husky
Grain and inorganic salt impurities.
Two layers of packing layer is equipped in the bacteria bed 172, the filler is biological compounded mix, and the compounded mix is pressed
Mass fraction includes following components:
Wood fragments consider 35 parts to be worth doing；
35 parts of peat；
35 parts of compost；
8 parts of palm fibre；
14 parts of column-shaped active carbon；
14 parts of coconut husk；
8 parts of diatomite.
Embodiment 3
It is as illustrated in fig. 1 and 2:
It is a kind of can be with the chemical engineering sewage advanced treatment system of deodorization, including coarse rack 1, lift pump room 2, fine fack 3, rotary drum
Microfilter 4, acid-base accommodation pond 5, flocculation basin sedimentation basin 6, PVA gel pond 7, sedimentation basin 8, membrane bioreactor 9, secondary settling tank 10,
EV fibre filter 11, ultrasonic sterilization pond 12, disinfection by ultraviolet light pond 13, water outlet lift pump room 14, above-mentioned apparatus by pipeline according to
Secondary connection；Mud concentration basin 15, the silt is also respectively connected simultaneously in the flocculation basin sedimentation basin 6, sedimentation basin 8, secondary settling tank 10
The outlet of mud thickener 15 is connected with 16 between sludge dewatering；The acid-base accommodation pond 5 is equipped with exhaust outlet, and the exhaust outlet is connected with
Exhaust air deodorization device 17, the exhaust air deodorization device 17 include spray column 171, bacteria bed 172, air-introduced machine 173, and exhaust gas is drawing
Under the action of blower 173, successively it is discharged into air again after 172 deodorization of spray column 171 and bacteria bed, the spray column
171 and the bottom external of bacteria bed 172 be respectively coupled circulating water chennel 175 and water circulating pump 174, inside is equipped with filler
The top of layer, packing layer is equipped with spray equipment 176；The pitch of the coarse rack 1 is 25mm, and the pitch of the fine fack 3 is
10mm；Diversion trench and convection current gallery are equipped in the acid-base accommodation pond 5.
Filled with spherical PVA gel particle in PVA gel pond 7, the average grain diameter of the PVA gel particle is
5mm, the volume of the PVA gel particle account for the 1/10 of 7 effective volume of PVA gel pond.
The grid of aperture 3mm is equipped in PVA gel pond 7, the running temperature in PVA gel pond 7 is 35 DEG C.
The membrane bioreactor 9 be bioreactor of dynamic membrane, membrane material use active carbon sponge, aperture 500um,
Thick 1cm；The arrangement mode of membrane module is lateral, longitudinal each 2 row, and every row is individually discharged.
The flocculant that the flocculation sedimentation tank 6 uses includes following components by mass fraction:
Alkali paper-making sludge: 100 parts；
Sodium sulfite or sodium thiosulfate: 30 parts；
The chloro- 2- hydroxypropyl-trimethyl ammonium chloride of 3-: 55 parts.
The subtraction paper mill sludge is that the waste water generated in subtraction paper making process takes off by molysite coagulating sedimentation, sludge
Water recycles gained after air-drying, wherein including: water 10%, lignin 45%, cellulose 12% by mass fraction, remaining ingredient is soil
The grains of sand and inorganic salt impurities.
Two layers of packing layer is equipped in the bacteria bed 172, the filler is biological compounded mix, and the compounded mix is pressed
Mass fraction includes following components:
Wood fragments consider 40 parts to be worth doing；
40 parts of peat；
40 parts of compost；
10 parts of palm fibre；
16 parts of column-shaped active carbon；
16 parts of coconut husk；
10 parts of diatomite.
The flocculant preparation method used in above-described embodiment is as follows:
The alkaline paper-making sludge of recycling is crushed, is then added in water and is uniformly mixed, the mass ratio of water-bath sludge
For 10:1,10%NaOH solution is then added dropwise into mixed liquor, it is at this moment molten until the pH stable of solution is 11.5 or so
The lignin and cellulose contained in liquid is all completely dissolved, and then under 90 DEG C of condition of water bath heating, it is (thio that sodium sulfite is added
Sodium sulphate can also be with), 2 h are persistently stirred, quantitative 3- chloro- 2- hydroxypropyl-trimethyl ammonia chloride is then added at a temperature of 70 DEG C
Ammonium (CHPTMA, component content 66%, using commercially available product) reacts 5h, has precipitating to generate, and is separated by solid-liquid separation, what is obtained consolidates
Body product is required flocculant.
Of the invention can be with the chemical engineering sewage advanced treatment system of deodorization, and specific works operational process is as follows:
For example, a kind of pharmacy sewage of pharmaceutical factory is handled using sewage disposal system of the invention, the pH of sewage
Value is 4-5 or so, and CODcr content therein is up to 4000 mg/L, and BOD5 is up to 4500 mg/L, and SS is up to 400 mg/L.
The sewage of discharge first passes around coarse rack 1, and the coarse rack spotter being equipped in coarse rack 1 can remove grain in sewage
The biggish suspended matter of diameter or floating material；Then sewage is once promoted by lift pump room 2, to realize subsequent treatment process
Gravity stream, lift pump room 2 can be equipped with 4 promotion water pumps (3 is standby with one)；Sewage after being promoted passes through fine fack 3 into one
Step removes the wherein lesser suspended matter of particle or floating material；Then sewage enters rotary drum Microfilter 4, and rotary drum Microfilter 4 can make
Some inorganic particle impurity in sewage, which are filtered while can also filter, removes some organic substances；By above-mentioned preliminary
Treated, and sewage is adjusted using acid-base accommodation pond 5 to suitable pH value, in order to subsequent biological treatment, due to subsequent
Flocculation reaction and PVA gel reaction, require under conditions of alkalinity, therefore, carbonic acid can be added in this step
PH value is adjusted to 10 or so by sodium or sodium bicarbonate；Uniformly mixed pH value after adjusting is suitable for that waste water enters flocculation sedimentation tank 6
Flocculation reaction is carried out under the action of flocculant, generates insoluble SS and gel-like foreign matters particle flocculation, and heavy floccule body is first
It is precipitated in settling zone, then the small floccule body of specific gravity floats in air flotation zone and micro-bubble attachment, will by flotation tank slag scraper
Air bearing body refuse is collected and conveyed to mud concentration basin 15, and the amount of flocculant is added in 300ml/L or so in this step, and flocculation reaction is to go
It is very good to the treatment effect of the CODcr in sewage in the step except impurity, can remove 70-80% CODcr, BOD5 and
SS；Then sewage enters PVA(polyvinyl alcohol) gel pond 7 handled, and PVA is a kind of novel porous filler, solely due to it
Special structure, carrier form aerobic, anoxic and anaerobism microenvironment by surface to inside, provide the environment of microbe survival,
Oxygen transmits resistance and reduces, and achievees the effect that prevent sludge bulking, can reduce the volume of mud, convenient for separating in sewage treatment
Mud subsequent processing out, while organic substance most of in sewage and microorganism can also be handled, it is especially right
The treatment effect of CODcr is more preferable, can at least dispose 85% CODcr, while can also reduce the coloration of sewage, can incite somebody to action
The coloration of water quality is down to 40 times from 250-300 times hereinafter, in PVA gel pond 7, in addition to being added with PVA filler, is also filled with work
Property mud, the activated sludge which is used using common sewage treatment plant, wherein activated sludge and PVA bead
Volume ratio be preferably kept in 3:1 or so, PVA bead uses commercially available PVA bead, and the running temperature in PVA gel pond 7 is 30
DEG C, in order to keep treatment effect best, the pH value in reaction tank is maintained at 10 or so；Treated water enters in sedimentation basin 8 into
Row is separated by solid-liquid separation, and the clear liquid isolated enters subsequent water treatment programs, and the mud isolated then enters mud concentration basin
Subsequent sludge treatment is carried out in 15；It is entered in membrane bioreactor 9 from the clear liquid isolated in sedimentation basin 8, passes through reaction
Membrane material in device handles water, during processing, closes inflow and outflow every 8h daily in reactor, beats simultaneously
It opens two Fans and carries out backwash 30-45min, in this step, to the removal effect of CODcr, TN, TP, NH3- N in sewage
Very well, removal rate respectively reaches 70%, 50%, 60%, 90%；By membrane bioreactor 9, treated that water enters secondary settling tank 10
In be separated by solid-liquid separation, the clear liquid isolated enters subsequent water treatment programs, and it is dense that the mud isolated then enters mud
Subsequent sludge treatment is carried out in contracting pond 15；It enters in EV fibre filter 11 and carried out from the clear liquid isolated in secondary settling tank 10
Filter is handled, and backwash pump house is additionally provided in the EV fibre filter 11, and EV fibre filter 11 is used as a kind of novel filter, has filtering
Effect is good, filter cycle is long, stable water outlet, filtering velocity are high, takes up little area, backwashes the advantages that water is few, operational management facilitates, can be with
Except impurity such as SS, CODcr, BOD5 and NH3- N, TN remaining in decontaminated water, more clean clear water is obtained；It is discharged after processing
Clear water pass sequentially through ultrasonic sterilization pond 12 (ultrasonic power is about 80 W, 30 min of reaction time or so) and ultraviolet light
Combined disinfection is carried out in sterilization pool 13, remove the bacterium in water, virus and is difficult to the substance removed, and water quality is made to obtain myristylpicolinum bromide
Change；Then clear water after purifying sterilizing, which finally carries out gravity promotion again by water outlet lift pump room 14, can be discharged.
By above-mentioned processing, the impurity such as BOD5, CODCr, SS, TN, NH3- N, TP in sewage can be obtained
Effective removal.
During water process, the mud isolated in flocculation basin sedimentation basin 6, sedimentation basin 8, secondary settling tank 10 is all concentrated
In mud concentration basin 15 after gravity concentration, then entered in 16 between sludge dewatering through belt filters pressing by mud elevator pump
Machine dehydration, dewatered mud can transport outward landfill stabilization.
Meanwhile in sewage disposal process, when acid-base accommodation pond 5 carries out acid-base accommodation, a large amount of evil can have been given out
Smelly exhaust gas, seriously pollutes surrounding enviroment, and the main component of exhaust gas is that the inorganic foul gas such as H2S, NH3 and volatile have
Machine object VOCs, therefore, our exhaust outlets in acid-base accommodation pond 5 are equipped with exhaust air deodorization device 17 and carry out purified treatment to exhaust gas,
Exhaust air deodorization device 17 includes spray column 171, bacteria bed 172, air-introduced machine 173, the spray column 171 and bacteria bed 172
Bottom external be respectively coupled circulating water chennel 175 and water circulating pump 174, inside is equipped with packing layer, sets above packing layer
There is spray equipment 176, be wherein equipped with one layer of packing layer in spray column 171, filler can use Pall ring, in bacteria bed 172
In order to preferably remove exhaust gas, it is equipped with two layers of packing layer, uses composite biological packing.Exhaust gas is first in the work of air-introduced machine 173
Under, it is introduced into spray column 171 by adjusting valve regulation exhaust gas flow, is filled by circulating water chennel 175, water circulating pump 174 and spray
176 pairs of exhaust gas progress continuous countercurrent washings are set to enter back into bacteria bed 172 after the washed absorption of exhaust gas, it is each in exhaust gas
Kind of odorant pollutant live away from home on biologic packing material growth a large amount of microbial actions under, be oxidized to H2SO4, CO2 and H2O, make to give up
Gas is purified, and purification gas is discharged into atmosphere.To keep the suitable growth conditions of microorganism in bacteria bed 172, except control temperature
Degree is outside 25 DEG C of -40 DEG C of ranges, it is necessary to allow biologic packing material to keep certain moisture content, and supply micro inorganic nutrient salt.It is raw
Two layers of packing layer is set in object filter bed 172, and top sets atomizing sprayer 176, and packing layer shelf has liquid re-distributor concurrently
Function, set gas-guide tube can make exhaust gas can smoothly enter into packing layer on shelf, and shower water is concentrated in bacteria bed lower part and is discharged.
By giving the processing of exhaust air deodorization device 17, H2S the and NH3 entirety removal efficiency in exhaust gas has reached 87% He
The whole removal efficiency of 90.191%, VOCs are 34%, while the filler in bacteria bed can also inhibit to a certain extent
The rapid growth of degradation VOCs microorganism.
Can be with the chemical engineering sewage advanced treatment system of deodorization by of the invention, the water quality being discharged is according to " town sewage
Treatment plant's pollutant emission index " (GB18918-2002) level-one A standard carries out detection execution, the water quality detection result of water outlet
It is as shown in the table:
Table 1: effluent quality
By upper table as it can be seen that through the invention can with the chemical engineering sewage advanced treatment system of deodorization treated sewage,
Its water quality indicator fully achieves " urban wastewater treatment firm pollutant emission index " (GB18918-2002) level-one A standard,
Therefore of the invention can be a kind of effective advanced sewage treatment system with the chemical engineering sewage advanced treatment system of deodorization.
Meanwhile the present invention carries out flocculation treatment using the flocculant that the paper mill sludge of recycling is prepared in flocculation.It is mixed
Solidifying is common preprocess method in sewage disposal process.Although frequently as pre-treatment link, coagulation process and coagulant/
The use of flocculant not only will affect effluent quality, moreover it is possible to influence energy consumption, cost of drugs and operating cost.Currently used coagulation
Agent is aluminium salt and molysite, such as aluminium polychloride, aluminum sulfate and ferric trichloride.For organic flocculant, using inorganic
Aluminium salt and Ferric Salt Flocculants, usage amount is more, and also will affect the water quality of processing.Paper mill sludge is sewage treatment in paper-making process
Product, yield is big, complicated component, is a kind of important trade waste.Currently, handling it mode of disposition mainly with soil
Based on ground landfill, only partially it is comprehensively utilized, not only wastes a large amount of land resource, but also secondary pollution can be generated.
Containing a large amount of unemployed lignin in paper mill sludge, therefore can be to lignin recovery to utilize.
And the present invention has then recycled paper mill sludge, and has saved cost, its flocculating effect of the flocculant of production and removes
It is to achieve many things at one stroke more preferably for the effect of decontamination is compared to common flocculant, that is, protects environment, and save
Cost meets the policy of current national green energy-saving and emission-reduction.
Simultaneously present invention uses membrane bioreactor, especially with use active carbon sponge for the dynamic of membrane material
Membrane bioreactor, the bio-dynamic membrane realization formed during the excessively active sludge filtration of the reactor is similar to microfiltration membranes
Filter effect, which has many advantages, such as capital construction and operating cost is low, fouling membrane is easy to control, and membrane material has reproducibility, passes through
Hydrodynamic cleaning can make membrane flux restore 90% or more, and the membrane material of use is for other membrane materials, due to active carbon
Organic matter can be enriched with surface and the surrounding for being concentrated in active carbon sponge substrate by huge surface area and suction-operated, be microorganism
Metabolic activity has built good microenvironment, accelerates the degradation process of organic matter, also, enzyme can enter active carbon sponge
In micropore, by the organic matter degradation of absorption, and the adsorption potential vacated can adsorb organic matter again, thus realize work simultaneously
Property charcoal regeneration, whole system just absorption degradation regenerate this synergistic effect of heavily adsorb under run, finally improve effluent quality.
Bioreactor of dynamic membrane is mainly to have benefited from being formed by denitrification space inside active carbon sponge to the removal advantage of TN.This
Kind processing mode, for common precipitating, filtration treatment, effect is fine.
The present invention has been equipped with exhaust air deodorization device, can while advanced treatment of wastewater, to rich carry out purified treatment,
In this way, through the invention, the water quality of discharge and the gas being discharged into air can achieve the effect that purification, to protect ring
Border.
The above embodiments merely illustrate the technical concept and features of the present invention, and the purpose is to allow the skill for being familiar with the technical field
Art personnel can understand the content of the present invention and implement it accordingly, and can not be limited the scope of the invention with this.All bases
Equivalent changes or modifications made by spirit of the invention, should be covered by the protection scope of the present invention.
Claims (1)
1. one kind can be with the chemical engineering sewage advanced treatment system of deodorization, it is characterised in that: including coarse rack (1), lift pump room
(2), fine fack (3), rotary drum Microfilter (4), acid-base accommodation pond (5), flocculation basin sedimentation basin (6), PVA gel pond (7), sedimentation basin
(8), membrane bioreactor (9), secondary settling tank (10), EV fibre filter (11), ultrasonic sterilization pond (12), disinfection by ultraviolet light pond
(13), lift pump room (14) are discharged, above-mentioned apparatus is sequentially connected by pipeline；The flocculation basin sedimentation basin (6), sedimentation basin (8),
Secondary settling tank (10) is also respectively connected mud concentration basin (15) simultaneously, and it is de- that the outlet of the mud concentration basin (15) is connected with mud
Between water (16), the acid-base accommodation pond (5) is equipped with exhaust outlet, and the exhaust outlet is connected with exhaust air deodorization device (17), described useless
Gas deodorization device (17) includes spray column (171), bacteria bed (172), air-introduced machine (173), work of the exhaust gas in air-introduced machine (173)
Under, successively it is discharged into air again after spray column (171) and bacteria bed (172) deodorization；The spray column (171) and
The bottom external of bacteria bed (172) has been respectively coupled circulating water chennel (175) and water circulating pump (174), and inside is equipped with filler
The top of layer, packing layer is equipped with spray equipment (176)；Two layers of packing layer is equipped in the bacteria bed (172), the filler is
Biological compounded mix, the compounded mix include following components by mass fraction:
Wood fragments consider 30-40 parts to be worth doing；
30-40 parts of peat；
30-40 parts of compost；
6-10 parts of palm fibre；
12-16 parts of column-shaped active carbon；
10-16 parts of coconut husk；
6-10 parts of diatomite；
The flocculant that the flocculation basin sedimentation basin (6) uses includes following components by mass fraction:
Alkali paper-making sludge: 100 parts；The alkali paper-making sludge is that the waste water generated in alkali paper-making production process passes through molysite
Coagulating sedimentation, sludge dewatering recycle gained after air-drying, wherein including: water 5-10%, lignin 40-45%, fiber by mass fraction
Plain 8-12%, remaining ingredient are the soil grains of sand and inorganic salt impurities；
Sodium sulfite or sodium thiosulfate: 25-30 parts；
The chloro- 2- hydroxypropyl-trimethyl ammonium chloride of 3-: 45-55 parts；
The pitch of the coarse rack (1) is 20-25mm, and the pitch of the fine fack (3) is 8-10mm, PVA gel pond (7)
The interior PVA gel particle filled with spherical shape, the average grain diameter of the PVA gel particle are 5mm, the body of the PVA gel particle
Product accounts for the 1/8-1/10 of PVA gel pond (7) effective volume；Aperture≤5mm grid is equipped in PVA gel pond (7), it is described
The running temperature in PVA gel pond (7) is 30-35 DEG C；Diversion trench and convection current gallery are equipped in the acid-base accommodation pond (5)；It is described
Membrane bioreactor (9) is bioreactor of dynamic membrane, and membrane material uses active carbon sponge, aperture 500um, thick 1cm；Film group
The arrangement mode of part is lateral, longitudinal each 2 row, and every row is individually discharged.
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| CN108862828A (en) * | 2018-06-22 | 2018-11-23 | 即墨市污水处理有限公司 | A kind of municipal sewage denitrogenation dephosphorizing treatment process |
| CN109621659A (en) * | 2018-11-30 | 2019-04-16 | 江苏旭龙环境科技有限公司 | A kind of novel circulation-type waste gas treatment equipment |
| AT524960B1 (en) * | 2021-10-12 | 2022-11-15 | Reprotex Gmbh | MOBILE WASTEWATER TREATMENT DEVICE |
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| CN201263971Y (en) * | 2008-04-29 | 2009-07-01 | 机科发展科技股份有限公司 | Four-segment combined biological deodorizing equipment |
| CN103920378B (en) * | 2014-05-08 | 2016-03-09 | 山东天力干燥股份有限公司 | A kind of municipal sludge drying tail gas treating apparatus and method |
| CN204237680U (en) * | 2014-10-31 | 2015-04-01 | 苏州工业园区清源华衍水务有限公司 | A kind of industrial sewage advanced treatment system |
| CN204342597U (en) * | 2014-10-31 | 2015-05-20 | 苏州工业园区清源华衍水务有限公司 | A kind of Sewage treatment systems |
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