CN100526240C - Method for anerobic aerobic granular sludge treating high concentration waste water from paper-making method tobacco slice production - Google Patents
Method for anerobic aerobic granular sludge treating high concentration waste water from paper-making method tobacco slice production Download PDFInfo
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- CN100526240C CN100526240C CNB2007100262818A CN200710026281A CN100526240C CN 100526240 C CN100526240 C CN 100526240C CN B2007100262818 A CNB2007100262818 A CN B2007100262818A CN 200710026281 A CN200710026281 A CN 200710026281A CN 100526240 C CN100526240 C CN 100526240C
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Abstract
The invention discloses a disposing method of high concentrated tobacco slice wastewater in the paper making processes through anaerobic aerobic granular sludge, which comprises the following steps: pre-processing concrete; pumping waste water into anaerobic complex reactor to get anaerobic degradation with sludge density at 30-40g/L, COD load at 12-18kg COD/m3.d and under 35-37 deg.c; adopting interval aerobic particle sludge method to get aerobic treatment; pumping water 1h with aeration of micropore aerated pipe at 8-16h; setting the density of density at 7-12g/L; making COD load at 1.2-1.5kg/(m3.d) . The invention can reach the first emission standard of nation.
Description
Technical field
The present invention relates to paper waste and handle, be specifically related to a kind of employing anerobic aerobic granular mud combination process and handle the wastewater from manufacture of tobacco slice by papermaking process method, belong to water-treatment technology field.
Background technology
Tobacco sheets by paper making method production is that to utilize depleted offal, tobacco cut and the offal etc. " waste " that produce in tobacco redrying and the production of cigarettes process be main raw material, be equipped with a spot of " skeleton " fibrous material, through extracting, mill separate, operations such as moulding and backfill handle, make tobacco sheet, for reducing the cigarette cost, saving plurality of advantages such as raw materials consumption, resource reutilization, reduce tobacco industry raw material consumption, reduce production costs and even improve the output and the quality of product, all have great importance.
All contain higher hot-water extraction thing in offal and the crumbled tobacco, therefore dissolved organic matter content is very high in the waste water, contain higher muriate and certain nicotine in the offal, so basicity in the waste water, total nitrogen content is higher, and lignin content is higher in offal and the crumbled tobacco, content of cellulose is higher, higher ash oontent is arranged in offal and the crumbled tobacco, so suspension content is very high in waste water, it is very necessary must effectively removing in wastewater treatment.Paper process tobacco wastewater water quality fluctuates bigger with tobacco leaf kind difference, CODcr and BOD
5The concentration height is rich in carbohydrate and tar, Nicotine, phenols and benzene ring substance based on polysaccharide, good biodegradability, colourity dark (being reddish-brown) and SS is higher, redox potential is higher, waste water characteristics such as easily corruption is rotten.
Though domesticly built corresponding waste water treatment engineering at waste water generated during paper-making process reconstituted-tobacco production, all there is certain problem in these waste water treatment engineerings, what adopt as Chinese invention patent CN1033359 is the factory effluent first reuse production of trying one's best, discharging after simple materialization is handled or diluted on a small quantity, being untreated or handling incomplete factory effluent is back to production and will greatly influences the quality of product, handles or the dilution back is discharged and also will be caused great harm to environment through simple materialization.
Chinese invention patent CN1683261 then adopts waste water to remove wherein suspended solid through coagulating treatment, air supporting method earlier, sends into the aeration tank then and handles removal most COD material by aerobic microbiological.This method is applicable to that water COD concentration into is not more than the tobacco sheet factory effluent of 3000mg/L, when water inlet COD concentration during greater than 3000mg/L, adopts this method wastewater treatment can not qualified discharge.
Though at present along with the updating of papermaking-method reconstituted tobaccos production technique, unit product water consumption and water displacement are constantly reducing, produce the waste strength that entered in continuous increase, waste water COD
Cr, BOD
5With colourity respectively up to 5000～12000mg/L, 2000～5000mg/L and 1500～5000CU.High density, high chroma tobacco sheets by paper making method factory effluent have increased the intractability of waste water greatly, and the waste water generated during paper-making process reconstituted-tobacco production emission standard is to improve constantly, and present emission standard is: SS≤100mg/L, COD
CR≤ 100mg/L, BOD
5≤ 50mg/L, colourity is less than 50 times.If still adopt simple materialization coagulation and aerobic biochemical technology, wastewater treatment can not qualified discharge.
Summary of the invention
The objective of the invention is to overcome the shortcoming of prior art, a kind of treatment process of handling high density, high chroma tobacco sheets by paper making method factory effluent is provided.
Purpose of the present invention is achieved through the following technical solutions:
The method of anerobic aerobic granular sludge treating high concentration wastewater from manufacture of tobacco slice by papermaking process comprises the steps and processing condition:
(1) coagulation pretreatment: waste water is less floating matter in rotary drum sieve amputation sewage at first; Reclaim useful slurry, rotary drum sieve screen cloth is 50 orders.Gravity flow enters the equilibrium adjusting that equalizing tank is made water quality, the water yield then, enter paper waste HWP highly effective coagulation cleaner (Chinese invention patent with the pump lifting, patent No. ZL97114281.5 and patent No. ZL97245878.6), by wastewater volume, add 150～200mg/L polymerize aluminum chloride at pump intake, reaction zone at cleaner pumps into polyacrylamide (PAM), and add-on is 0.5～1mg/L, and hydraulic detention time is 1.5～2 hours; Coagulation pretreatment part effluent reuse is got the raw materials ready in tobacco sheets by paper making method technology and the boiling extraction stages, the treatment stage that remaining water outlet entering anaerobism, aerobic biochemical.
(2) anaerobic degradation: the waste water after coagulating treatment is pumped and is entered the hybrid anaerobic reactor degradation treatment, it below the reactor Sludge Bed that high concentration particle mud is formed, its mixed liquor suspended solid, MLSS concentration (MLSS) reaches 30～40g/L, and top is the filter material layer that filler and the microbial film that adheres to thereof are formed.Because the existence of filler, the bubble of carrying mud secretly bumps with it in uphill process, has quickened separating of mud and bubble, thereby has reduced the loss of mud.Filler top is provided with water, gas, solid triphase separator, because the two combined action of filler and triphase separator, make the volume of hybrid anaerobic reactor to utilize to greatest extent, the ability of accumulation microorganism greatly strengthens, the organic loading rate of reactor is higher, thereby it is fast to have toggle speed, processing efficiency height, characteristics such as stable.Anaerobic pond COD load is 12～18kg COD/m
3.d, sludge concentration is 30～40g/L, and temperature is 35～37 ℃.
(3) aerobic treatment: waste water enters the aerobic reaction pond then, deliquescent organism in the waste water is further handled, aerobic process adopts the intermission aerobic granule sludge method, the Aerobic Pond operational conditions is: intake 1 hour, aeration: 8～16 hours, precipitate 30 minutes, draining 20 minutes, aeration mode is a micropore aeration pipe.Sludge concentration is 7～12g/L in the reactor, COD load 1.2～1.5kg/ (m
3.d).Outputted aerobic water partly is back to the washing refining system, and remaining water outlet enters the bleaching tower processing of decolouring.Help to form aerobic particle mud than short sedimentation time and bigger current shearing action in the reactor, finish into water, reaction (aeration), quiet heavy, drainage procedure successively, do not need secondary sedimentation basins, thereby reduce occupation of land, reduction cost by the time sequence; Its operation scheme can make the maximization of organic concentration gradient, has improved the biochemical reaction impellent greatly, have the characteristic of ideal plug flow reactor on the time, thereby effluent quality is good, biological degradation efficient height; Be complete static state deposition during precipitation, do not have the interference of turnover current, muddy water divides high effective; The pond feed-water end is provided with biological selecting area, the anoxic oxygen condition of becoming reconciled alternately exists in the pond, both give full play to separately Degradation of double oxygen bacterium and aerobic bacteria, improved the utilization ratio of dissolved oxygen, can select by biological again, effectively suppress hyphomycetic breeding, overcome the insoluble sludge bulking problem of conventional activated sludge process; Sludge back flow quantity is less, has reduced the power consumption that promotes returned sluge.It is simple that this technology also has technology, can not produce the current short circuit, anti impulsion load, and working cost is low.
(4) decolouring is handled: the water after aerobic treatment pumps in the bleaching tower, and the decolouring advanced treatment adds molysite (PFS) and PAM is respectively 800～1500mg/L and 1～2mg/L.Water part, decolouring back is back to the thin slice workshop section that manufactures paper with pulp in the tobacco sheets by paper making method technology.Every index of handling the back water outlet has all reached the requirement of national environmental protection first discharge standard.
The present invention compares with existing method, has following advantage:
(1) the present invention is by the organic assembling of anaerobic-aerobic biochemical processing process and coagulation pretreatment and decolouring materialization processing; based on biochemical processing process; especially in the anaerobic and aerobic reactive system, realize the granulating of mud respectively; because granule sludge has high volumetric loading; and sedimentation function is good; do not need extra settling tank, thereby reduce the reactor floor space, have the low and few characteristics of sludge quantity of working cost.
(2) produce each stage according to tobacco sheet and require the difference of reuse water quality, make the water after the processing carry out each processing section separate-recycling, reduced the treatment capacity of water of productive use and waste water, final treat effluent really reaches discharging.
Embodiment
The present invention is further illustrated below by embodiment, but the scope of protection of present invention is not limited to the scope of embodiment statement.
Embodiment 1:
Handle wastewater from manufacture of tobacco slice by papermaking process with technical solution of the present invention, the influent quality index is as follows, and waste water is less floating matter and suspended substance in rotary drum sieve amputation sewage at first, reclaims useful slurry, and rotary drum sieve screen cloth is 50 orders.Gravity flow enters the equilibrium adjusting that equalizing tank is made water quality, the water yield then, enter paper waste HWP type highly effective coagulation cleaner with the pump lifting, add poly-aluminium at pump intake, reaction zone with medicament pump at cleaner pumps into polyacrylamide, by non-solubility organism such as suspended matter, colloidalmaterial in flocculation, the adsorption removal waste water, in pending wastewater volume, poly-aluminium of flocculation treatment and polyacrylamide (PAM) addition are respectively 200mg/L and 1mg/L, and the residence time is 2 hours.Coagulation pretreatment 30% effluent reuse is got the raw materials ready in tobacco sheets by paper making method technology and the boiling extraction stages, the treatment stage that remaining water outlet entering anaerobism, aerobic biochemical.
Waste water after coagulating treatment is pumped the hybrid anaerobic reactor that enters South China Science ﹠ Engineering University's papermaking engineering center preparation, it below the reactor Sludge Bed that high concentration particle mud is formed, its mixed liquor suspended solid, MLSS concentration (MLSS) can reach 38g/L, and top is the filter material layer that filler and the microbial film that adheres to thereof are formed.Filler top is provided with water, gas, solid triphase separator.Anaerobic pond COD
CrLoad 17kgCOD/m
3.d, temperature is 35～37 ℃.
Waste water enters the aerobic reaction pond then, and aerobic process adopts sequence batch (intermission aerobic granule treatment process, finishes into water, reaction (aeration), quiet heavy, drainage procedure successively by the time sequence, does not need secondary sedimentation basins, and the pond feed-water end is provided with biological selecting area.
The Aerobic Pond operational conditions is: intake aeration 1 hour: 16 hours, precipitate 30 minutes, and draining 20 minutes, aeration mode is a micropore aeration pipe.Sludge concentration is 12g/L in the reactor, COD load 1.5kg/ (m
3.d) time.Water outlet after the aerobic treatment 40% is back to the washing refining system in the tobacco sheets by paper making method technology, and remaining water outlet enters the bleaching tower processing of decolouring.
Water after aerobic treatment pumps in the bleaching tower of South China Science ﹠ Engineering University's papermaking engineering center preparation, and the decolouring advanced treatment adds molysite (PFS) and PAM is respectively 1400mg/L and 2mg/L.Decolouring back the manufacture paper with pulp thin slice workshop section of 20% effluent reuse in tobacco sheets by paper making method technology.Handle the every index such as the following table 1 of back water outlet.
As shown in Table 1, adopt this treatment process that the tobacco sheet wastewater of high density is had treatment effect preferably, its final colourity, COD and BOD reach 64C.U. or 55 times, 85mg/L and 45mg/L respectively, have all reached the requirement of national environmental protection first discharge standard.
Table 1: tobacco sheet wastewater treatment effect
| Former water | Rotary drum sifts out water | The HWP flocculation sediment | The anaerobism water outlet | Outputted aerobic water | The decolouring aftertreatment | Emission standard | |
| Colourity * (C.U.) | 7680 | 5780 | 3906 | 2540 | 1935 | 64(55) | (60) |
| PH value | 4.74 | 4.74 | 5.18 | 6.81 | 8.5 | 7.3 | 6-9 |
| CODcr (mg/L) | 11600 | 7900 | 5495 | 857 | 236 | 95 | 100 |
| BOD 5 (mg/L) | 5850 | 3690 | 2898 | 350 | 120 | 45 | 50 |
*Annotate: colour measurement has two kinds of methods, and data are the extension rate method data in the national standard in the bracket, and the outer data of bracket are for adopting the data in the CPPA standard
Embodiment 2
Handle wastewater from manufacture of tobacco slice by papermaking process with technical solution of the present invention, the influent quality index is as follows, and waste water is less floating matter and suspended substance in rotary drum sieve amputation sewage at first, reclaims useful slurry, and rotary drum sieve screen cloth is 50 orders.Gravity flow enters the equilibrium adjusting that equalizing tank is made water quality, the water yield then, promote the paper waste HWP highly effective coagulation cleaner that enters South China Science ﹠ Engineering University's papermaking engineering center preparation with pump., add poly-aluminium at pump intake, reaction zone with medicament pump at cleaner pumps into polyacrylamide, by non-solubility organism such as suspended matter, colloidalmaterial in flocculation, the adsorption removal waste water, poly-aluminium of flocculation treatment and polyacrylamide (PAM) addition are respectively 180mg/L and 0.5mg/L, the residence time: 2 hours.Coagulation pretreatment 30% effluent reuse is got the raw materials ready in thin slice technology and the boiling extraction stages, the treatment stage that remaining water outlet entering anaerobism, aerobic biochemical.
Waste water after coagulating treatment is pumped the hybrid anaerobic reactor that enters South China Science ﹠ Engineering University's papermaking engineering center preparation, it below the reactor Sludge Bed that high concentration particle mud is formed, its mixed liquor suspended solid, MLSS concentration (MLSS) reaches 35g/L, and top is the filter material layer that filler and the microbial film that adheres to thereof are formed.Filler top is provided with water, gas, solid triphase separator, anaerobic pond COD
CrLoad 14kgCOD/m
3.d, temperature is 35～37 ℃.
Waste water enters the aerobic reaction pond then, and aerobic process adopts sequence batch (intermission aerobic granule treatment process, finishes into water, reaction (aeration), quiet heavy, drainage procedure successively by the time sequence, does not need secondary sedimentation basins, and the pond feed-water end is provided with biological selecting area.
The Aerobic Pond operational conditions is: intake aeration 1 hour: 14 hours, precipitate 30 minutes, and draining 20 minutes, aeration mode is a micropore aeration pipe.Sludge concentration is 10g/L in the reactor, COD load 1.2～1.3kg/ (m
3.d) time.The bleaching tower that the washing refining system of aerobic 40% effluent reuse in tobacco sheets by paper making method technology, remaining water outlet enter the preparation of the South China Science ﹠ Engineering University papermaking engineering center processing of decolouring.
Water after aerobic treatment pumps in the bleaching tower of South China Science ﹠ Engineering University's papermaking engineering center preparation, and the decolouring advanced treatment adds molysite (PFS) and PAM is respectively 900mg/L and 2mg/L.Decolouring back the manufacture paper with pulp thin slice workshop section of 20% effluent reuse in tobacco sheets by paper making method technology.Handle the every index such as the following table 2 of back water outlet.
Table 2: tobacco sheet wastewater treatment effect
| Former water | Rotary drum sifts out water | The HWP coagulating sedimentation | The anaerobism water outlet | Outputted aerobic water | The decolouring aftertreatment | Emission standard | |
| Colourity * (C.U.) | 5900 | 5000 | 3290 | 1970 | 1935 | 50(45) | (60) |
| PH value | 4.74 | 4.74 | 5.18 | 6.81 | 8.5 | 7.3 | 6-9 |
| CODcr (mg/L) | 9500 | 5700 | 4120 | 612 | 201 | 83 | 100 |
| BOD 5 (mg/L) | 4120 | 3200 | 2020 | 230 | 110 | 33 | 50 |
*Annotate: colour measurement has two kinds of methods, and data are the extension rate method data in the national standard in the bracket, and the outer data of bracket are for adopting the data in the CPPA standard
As shown in Table 2, adopt this treatment process that the tobacco sheet wastewater of high density is had treatment effect preferably, its final colourity, COD and BOD reach 50C.U. or 45 times, 83mg/L and 33mg/L respectively, have all reached the requirement of national environmental protection first discharge standard
Embodiment 3
Handle wastewater from manufacture of tobacco slice by papermaking process with technical solution of the present invention, the influent quality index is as follows, and waste water is less floating matter and suspended substance in rotary drum sieve amputation sewage at first, reclaims useful slurry, and rotary drum sieve screen cloth is 50 orders.Gravity flow enters the equilibrium adjusting that equalizing tank is made water quality, the water yield then, promote the paper waste HWP highly effective coagulation cleaner that enters South China Science ﹠ Engineering University's papermaking engineering center preparation with pump, add poly-aluminium at pump intake, reaction zone with medicament pump at cleaner pumps into polyacrylamide, by non-solubility organism such as suspended matter, colloidalmaterial in flocculation, the adsorption removal waste water, poly-aluminium of flocculation treatment and polyacrylamide (PAM) addition are respectively 150mg/L and 0.5mg/L, the residence time: 1.5 hours.Coagulation pretreatment 30% effluent reuse is got the raw materials ready in thin slice technology and the boiling extraction stages, the treatment stage that remaining water outlet entering anaerobism, aerobic biochemical.
Waste water is after treatment pumped the hybrid anaerobic reactor that enters South China Science ﹠ Engineering University's papermaking engineering center preparation, it below the reactor Sludge Bed that high concentration particle mud is formed, its mixed liquor suspended solid, MLSS concentration (MLSS) reaches 32g/L, and top is the filter material layer that filler and the microbial film that adheres to thereof are formed.Filler top is provided with water, gas, solid triphase separator, anaerobic pond COD
CrLoad 12kgCOD/m
3.d, temperature is 35～36 ℃.
Waste water enters the aerobic reaction pond then, and aerobic process adopts sequence batch (intermission aerobic granule treatment process, finishes into water, reaction (aeration), quiet heavy, drainage procedure successively by the time sequence, does not need secondary sedimentation basins, and the pond feed-water end is provided with biological selecting area.
The Aerobic Pond operational conditions is: intake aeration 1 hour: 8 hours, precipitate 30 minutes, and draining 20 minutes, aeration mode is a micropore aeration pipe.Sludge concentration is 7g/L in the reactor, COD load 1.2kg/ (m
3.d) time.The washing refining system of aerobic 40% effluent reuse in tobacco sheets by paper making method technology, remaining water outlet enter the bleaching tower processing of decolouring.
Water after aerobic treatment pumps in the bleaching tower of South China Science ﹠ Engineering University's papermaking engineering center preparation, and the decolouring advanced treatment adds molysite (PFS) and PAM is respectively 800mg/L and 1mg/L.Decolouring back the manufacture paper with pulp thin slice workshop section of 20% effluent reuse in tobacco sheets by paper making method technology.Every index of handling the back water outlet is as follows.
Table 3: tobacco sheet wastewater treatment effect
| Former water | Rotary drum sifts out water | The HWP flocculation sediment | The anaerobism water outlet | Outputted aerobic water | Aftertreatment | Emission standard | |
| Colourity * (C.U.) | 3100 | 2500 | 2290 | 1870 | 1835 | 50(45) | (60) |
| PH value | 4.74 | 4.74 | 5.18 | 6.81 | 8.5 | 7.3 | 6-9 |
| CODcr (mg/L) | 4700 | 2900 | 2120 | 448 | 201 | 75 | 100 |
| BOD 5 (mg/L) | 2300 | 1900 | 1720 | 153 | 80 | 25 | 50 |
*Annotate: colour measurement has two kinds of methods, and data are the extension rate method data in the national standard in the bracket, and the outer data of bracket are for adopting the data in the CPPA standard
As shown in Table 3, adopt this treatment process that the tobacco sheet wastewater of high density is had treatment effect preferably, its final colourity, COD and BOD reach 50C.U. or 45 times, 75mg/L and 25mg/L respectively, have all reached the national environmental protection first discharge standard.
Claims (5)
1, the method for anerobic aerobic granular sludge treating high concentration wastewater from manufacture of tobacco slice by papermaking process is characterized in that comprising the steps and processing condition:
(1) coagulation pretreatment: waste water is less floating matter in rotary drum sieve amputation sewage at first; Promote with pump and to enter the paper waste cleaner, by wastewater volume, add 150～200mg/L polymerize aluminum chloride at pump intake, pump into polyacrylamide at the reaction zone of cleaner, add-on is 0.5～1mg/L, and hydraulic detention time is 1.5～2 hours; Coagulation pretreatment part effluent reuse is got the raw materials ready in tobacco sheets by paper making method technology and the boiling extraction stages, and remaining water outlet enters anaerobic degradation and aerobic the treatment stage successively;
(2) anaerobic degradation: the waste water after coagulation pretreatment is pumped and is entered the hybrid anaerobic reactor degradation treatment, and sludge concentration is 30～40g/L, and the COD load is 12～18kgCOD/m
3.d, temperature is 35～37 ℃;
(3) aerobic treatment: adopt the intermission aerobic granule sludge method to handle: intake 1 hour, the micropore aeration pipe aeration is 8～16 hours, precipitates 30 minutes, draining 20 minutes; Sludge concentration is 7～12g/L in the reactor, COD load 1.2～1.5kg/ (m
3.d);
(4) decolouring is handled: the water after aerobic treatment pumps in the bleaching tower, adds molysite and polyacrylamide, the advanced treatment of decolouring, and by processed waste water, molysite and polyacrylamide dosage are respectively 800～1500mg/L and 1～2mg/L.
2,, it is characterized in that rotary drum sieve screen cloth is 50 orders according to the method for the described anerobic aerobic granular sludge treating high concentration wastewater from manufacture of tobacco slice by papermaking process of claim 1.
3, according to the method for the described anerobic aerobic granular sludge treating high concentration wastewater from manufacture of tobacco slice by papermaking process of claim 1, it is characterized in that described hybrid anaerobic reactor bottom is the Sludge Bed that high concentration particle mud is formed, top is the filter material layer that filler and the microbial film that adheres to thereof are formed, and filler top is provided with water, gas, solid triphase separator.
4, according to the method for the described anerobic aerobic granular sludge treating high concentration wastewater from manufacture of tobacco slice by papermaking process of claim 1, it is characterized in that water part after aerobic treatment is back in the tobacco sheets by paper making method technology washs refining system, and remaining water outlet enters the bleaching tower processing of decolouring.
5, method according to claim 1 is characterized in that the water part after decolouring is back to the thin slice workshop section that manufactures paper with pulp of tobacco sheets by paper making method.
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| CN102219297A (en) * | 2010-04-16 | 2011-10-19 | 复旦大学 | Rapid culture method of aerobic granular sludge |
| CN101805077B (en) * | 2010-04-29 | 2011-08-03 | 广东金科再造烟叶有限公司 | Treating method of paper-making water recycling use in the production process of reconstituted tobacco |
| CN101891346B (en) * | 2010-07-15 | 2012-04-25 | 中国林业科学研究院林产化学工业研究所 | Discharge-reducing method for biologically treating chemical-mechanical pulping waste water |
| CN102276093B (en) * | 2011-07-19 | 2012-11-28 | 湖北中烟工业有限责任公司 | Treatment method of papermaking method tobacco sheet production wastewater |
| CN102531285B (en) * | 2011-12-30 | 2013-07-17 | 福建金闽再造烟叶发展有限公司 | Process for treating high-concentration organic wastewater of paper-making reconstituted tobacco |
| CN103011502B (en) * | 2012-12-05 | 2014-06-18 | 浙江理工大学 | Method for deeply treating waste paper pulping and papermaking comprehensive wastewater by using ultrafiltration membrane |
| CN103241909B (en) * | 2013-05-31 | 2014-01-29 | 波鹰(厦门)科技有限公司 | Process device for waste water generated in tobacco sheet production |
| CN103351088B (en) * | 2013-08-08 | 2014-08-06 | 波鹰(厦门)科技有限公司 | Treatment and regenerative cyclic utilization device for tobacco sheet production wastewater |
| CN103549641B (en) * | 2013-11-14 | 2016-01-06 | 红塔烟草(集团)有限责任公司 | The purifying treatment method that stalk water circulation uses is washed in a kind of papermaking-method reconstituted tobaccos production process |
| CN106186569A (en) * | 2016-08-29 | 2016-12-07 | 武汉东川自来水科技开发有限公司 | A kind of recycling treatment system for reconstituted tobacoo sewage and method |
| CN106746044A (en) * | 2016-12-09 | 2017-05-31 | 苏州纳贝通环境科技有限公司 | A kind of advanced treatment method for papermaking waste water |
| CN107244781A (en) * | 2017-06-27 | 2017-10-13 | 安徽比伦生活用纸有限公司 | A kind of processing method of paper waste |
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