CN104261637B - The treatment process of firecracker paper paper waste - Google Patents
The treatment process of firecracker paper paper waste Download PDFInfo
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- CN104261637B CN104261637B CN201410559875.5A CN201410559875A CN104261637B CN 104261637 B CN104261637 B CN 104261637B CN 201410559875 A CN201410559875 A CN 201410559875A CN 104261637 B CN104261637 B CN 104261637B
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/54—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using organic material
- C02F1/56—Macromolecular compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/722—Oxidation by peroxides
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/26—Nature of the water, waste water, sewage or sludge to be treated from the processing of plants or parts thereof
- C02F2103/28—Nature 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
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/30—Aerobic and anaerobic processes
Abstract
The invention discloses a kind for the treatment of process of firecracker paper paper waste, step is as follows: firecracker paper paper waste is inputted successively equalizing tank, pretreatment reaction settling tank, anaerobic pond, Aerobic Pond, biochemical sedimentation basin, advanced treatment first order reaction settling tank, oxidizing reaction pond and advanced treating secondary reaction settling basin; Wherein, add ferrous sulfate at the feed-water end of equalizing tank, in pretreatment reaction settling tank, add lime, PAC and PAM; The vitriol oil, ferrous sulfate is added in advanced treatment first order reaction settling tank; Oxidizing reaction adds hydrogen peroxide in pond; NaOH, PAC and PAM is added in advanced treating secondary reaction settling basin.Treatment process of the present invention significantly can reduce the concentration of organic pollutant in firecracker paper paper waste, organic dye (especially rhodamine b extra 500), makes each index of waste water up to standard; And test shows: engineer applied runs in 2 years, and each stage procedure operating parameter is stablized, and the temperature Change adaptive faculty of system to the fluctuation of concentration of water quality and the external world is strong.
Description
Technical field
The present invention relates to field of waste water treatment, particularly a kind for the treatment of process of firecracker paper paper waste.
Background technology
At present, the papermaking of firecracker paper generally adopts thin wood powder, bamboo pulp (caustic soda or the brewed magma of lime), waste paper to be raw material, the ratio of its three kinds of raw materials is about and respectively accounts for 1/3rd, after first paper pulp being broken in three kinds of raw material mixing, basic rhodamine, the dyestuff such as bright red, acid orange red II is added in paper pulp, through drying or obtaining red rhodamine b extra 500 papermaking after drying, current manufacturer mainly concentrates on the ground such as Hunan, Guangxi, Jiangxi, belongs to the papermaking of part magma partial regeneration paper.Owing to can produce a large amount of red waste water in firecracker paper production process, organic concentration is high, and decolouring difficulty is large.The CODcr of waste water is between 12000-15000mg/L, and colourity at 8000-12000 doubly, belongs to the high concentrated organic wastewater integrating waste water from dyestuff, magma papermaking, paper-reproducing wastewater.And according to national environmental standard, could discharge after this kind of waste water need reach " pulp and paper industry pollution discharge standard " (GB3544-2008), main Con trolling index and requiring as pH:6-9, colourity≤50 times, suspended substance≤30mg/L, BOD
5≤ 20mg/L, COD
cr≤ 80mg/L, ammonia nitrogen≤8mg/L, total phosphorus≤0.8mg/L.
But, the domestic case this firecracker paper paper waste (containing rhodamine b extra 500) not being had to process up to standard at present, the treatment process of the Engineering Projects employing of main flow is the method for " pre-treatment+biochemical treatment+conventional depth process ", pretreatment stage main method is for adding medicament postprecipitation or air supporting, conventional dispensing combination has the medicament such as " PAC+PAM ", " ferrous sulfate+PAC+PAM ", " ferrous sulfate+lime+PAC+PAM ", makes effluent part particulate matter and suspended substance removal.Pretreated waste water enters biochemical treatment, and the process combination that the biochemical treatment stage adopts is " anaerobic biological process+aerobe method ".The treatment stage of waste water after biochemical treatment last penetration depth, advanced treatment stage conventional process combination has: direct oxidation method (oxidation of ozone oxidation, Chlorine Dioxide Oxidation, drift ice, Fenton oxidation), coagulant sedimentation, active carbon adsorption etc.But above-mentioned technical process combination all can not make projects index of waste water all reach the requirement of emission standard, and after running about 3-4 month, there will be biochemical system instability and even paralyse, and bio-chemical effluent worsens.
The main drawback of above-mentioned art breading is: (1) pre-treatment effectively can not remove the materials such as the organic dye be dissolved in water, and Pollutant levels are very high (COD still
crcan 7500-9000mg/L be reached), very large burden is caused to follow-up biochemical treatment.(2) Coal Gas Washing Cycling Water sulfate ion can have an impact to anaerobic system, and time serious, paralysis situation can occur anaerobic system.(3) biochemical treatment stage water outlet organic contamination substrate concentration is high, and direct oxidation, coagulation or absorption can not make wastewater treatment to up to standard.
Summary of the invention
Based on this, the invention provides a kind for the treatment of process of firecracker paper paper waste.
The concrete technical scheme solved the problems of the technologies described above is as follows:
A treatment process for firecracker paper paper waste, comprises the following steps:
(1) firecracker paper paper waste is inputted equalizing tank, pretreatment reaction settling tank successively; Wherein, add ferrous sulfate at the feed-water end of equalizing tank, the dosage of described ferrous sulfate is add 1-2kg in equalizing tank waste water per ton; Feeding lime, PAC and PAM in pretreatment reaction settling tank, and regulate pH to be 7.5-8.0; The dosage of described lime, PAC and PAM is respectively in pretreatment reaction settling tank waste water per ton and adds 0.3-0.7kg, 1-2kg and 0.03-0.07kg.Add ferrous sulfate at the feed-water end of equalizing tank, effectively can extend the duration of contact of ferrous ion and organic dye molecule (as: rhodamine b extra 500), make it abundant reaction, namely complexing is abundant; And then feeding lime, can remove most sulfate ion in waste water, follow-up anaerobically fermenting is more easily carried out, and the color producing species of waste water is removed more thorough, and CODcr removes more abundant; Adding PAC and PAM makes the suspended substance in water or other macromolecular substance be adsorbed the particulate matter forming easily precipitation, precipitates removal under gravity, and then realizes mud-water separation;
(2) waste water processed through step (1) is inputted anaerobic pond, Aerobic Pond and biochemical sedimentation basin successively;
(3) the waste water input advanced treatment first order reaction settling tank that will process through step (2), adds ferrous sulfate, and regulates pH to be 3.0-3.5 with the vitriol oil; The dosage of described ferrous sulfate is add 1-2kg in advanced treatment first order reaction settling tank waste water per ton.Utilize acid out effect, the lignin that in waste water, part is not decomposed significantly can be made to separate out under sour environment, and by introducing medicament ferrous sulfate, strengthen the cohesion performance of precipitate, make it precipitate removal, and then realize effectively being separated of acid insolubles and waste water supernatant;
(4) in the waste water input oxidizing reaction pond that will process through step (3), and add hydrogen peroxide, the dosage of described hydrogen peroxide is add 2-4L in the waste water of oxidizing reaction pond per ton;
(5) the waste water input advanced treating secondary reaction settling basin that will process through step (4), add PAC and PAM, and regulating pH to be 7.5-8.0 with NaOH, the dosage of described PAC and PAM is add 140-160g and 0.8-1.2g in advanced treating secondary reaction settling basin waste water per ton.
Wherein in some embodiments, the dosage of ferrous sulfate described in step (1) is add 1.4-1.6kg in equalizing tank waste water per ton.
Wherein in some embodiments, the dosage of ferrous sulfate described in step (3) is add 1.5-1.6kg in advanced treatment first order reaction settling tank waste water per ton.
Wherein in some embodiments, the hydraulic detention time in equalizing tank described in step (1) is 12h.
Wherein in some embodiments, described in step (1), pretreatment reaction settling tank is divided into reaction zone and settling region, in the reaction region feeding lime, PAC and PAM, and regulates pH to be 7.5-8.0; The dosage of described lime, PAC and PAM is respectively 0.4-0.6kg/t, 1.4-1.6kg/t, 0.04-0.06kg/t, and the hydraulic detention time HRT controlling reaction zone is 36min, and settling region surface load q is 0.8m
3/ (m
2h).
Wherein in some embodiments, step (3) described advanced treatment first order reaction settling tank is divided into reaction zone and settling region, and wherein, reaction zone is provided with second order reaction groove, and every grade of hydraulic detention time is 12min, and settling region surface load is 0.8m
3/ (m
2h).
Wherein in some embodiments, in anaerobic pond described in step (2), volumetric loading is 1.73kgCOD
cr/ (m
3d), hydraulic detention time is 3d.
Wherein in some embodiments, in Aerobic Pond described in step (2), volumetric loading is 0.71gCOD
cr/ (m
3d), hydraulic detention time is 2.8d.
Wherein in some embodiments, in biochemical sedimentation basin described in step (2), surface load is 0.8m
3/ (m
2h).
Wherein in some embodiments, the hydraulic detention time in the described oxidizing reaction pond of step (4) is 2.0h.
Wherein in some embodiments, the described advanced treating secondary reaction settling basin of step (5) is divided into reaction zone and settling region, and wherein, reaction zone is provided with third order reaction groove, and every grade of hydraulic detention time is 12min, and settling region surface load is 0.8m
3/ (m
2h).
The treatment process of a kind of firecracker paper paper waste of the present invention has the following advantages and beneficial effect:
(1) the present invention is through a large amount of experiment of contriver and long-term research, draws the best approach of process firecracker paper paper waste, and determines its optimum technology parameter.This treatment process by adjustment equalizing tank in dosing mode and before oxidizing reaction pond, set up advanced treatment first order reaction settling tank, optimize the technical parameter in pretreatment reaction settling tank, anaerobic pond, Aerobic Pond, biochemical sedimentation basin, oxidizing reaction pond and advanced treating secondary reaction settling basin simultaneously, significantly reduce the organic pollutant in firecracker paper paper waste, organic dye (especially rhodamine b extra 500) concentration, make each index of handled waste water reach country's " pulp and paper industry pollution discharge standard " (GB3544-2008) standard; And engineering example is run in 2 years, each stage procedure operating parameter is stablized, and the temperature Change adaptive faculty of system to the fluctuation of concentration of water quality and the external world is strong.
(2) treatment process of the present invention, ferrous sulfate is added at equalizing tank feed-water end, effectively can extend the duration of contact of the dyestuff such as ferrous ion and rhodamine b extra 500, make both fully complexings, and most sulfate ion can be removed at pretreatment stage feeding lime, PAC, PAM, anaerobically fermenting is more easily carried out, also makes the color producing species of waste water remove more thorough, CODcr removes more abundant.
(3) treatment process of the present invention, adding before hydrogen peroxide carries out oxidizing reaction, set up advanced treatment first order reaction settling tank, thus the pre-treatment of removal part, anaerobic treatment and aerobic treatment stage fail to remove organism thoroughly effectively, strengthen subsequent oxidation step of reaction to the immunity from interference of variation water quality.
(4) treatment process of the present invention, in advanced treatment first order reaction settling tank, be provided with acid out process, the xylogen be not decomposed in waste water can be effectively made to separate out in acid condition, and add ferrous sulfate, the cohesion performance of precipitate can be strengthened further, effectively remove precipitation, realize effectively being separated of acid insolubles and wastewater supernatant fluid.
Accompanying drawing explanation
Fig. 1 is the process flow sheet of the treatment process of firecracker paper paper waste described in embodiment 1;
Treatment process each stage CODcr, BOD that Fig. 2 is firecracker paper paper waste described in embodiment 1
5and the variation diagram of colourity.
Embodiment
COD
cr: chemical oxygen demand (COD); BOD
5: five-day BOD; H
2s: hydrogen sulfide; PAC: polymerize aluminum chloride (Al
2cl (OH)
5); PAM: polyacrylamide (C
3h
5nO)
n.
The present invention's each raw material used and molecular formula thereof and effective content as follows:
The vitriol oil: H
2sO
4, effective content: 98.0%,
Ferrous sulfate: FeSO
4.7H
2o, effective content: 98.0%,
Hydrogen peroxide: H
2o
2, effective content: 27.5%,
Caustic soda: NaOH, effective content: 96.0%,
Lime powder: Ca (OH)
2, effective content: 90.0%,
PAC:(Al
2cl (OH)
5), effective content: 28.0%,
PAM:(C
3h
5nO)
n, effective content: 90.0%, PAM used in following embodiment is cationic, and molecular weight is about 1,200 ten thousand, but PAM of the present invention is not limited only to this type.
Below with reference to specific embodiment, the present invention will be further described.
Embodiment 1
The present embodiment is the treatment process of firecracker paper paper waste, and its process flow sheet, see Fig. 1, specifically comprises the steps:
(1) firecracker paper paper waste is inputted equalizing tank, pretreatment reaction settling tank successively;
Add ferrous sulfate at the feed-water end of equalizing tank, the dosage of described ferrous sulfate is 1.5kg/t, and it effectively extends the duration of contact of ferrous ion and organic dye molecule (as: rhodamine b extra 500), and make it abundant reaction, namely complexing is abundant; In regulating and controlling pond, hydraulic detention time HRT is 12h simultaneously.
Be divided into reaction zone and settling region at pretreatment reaction settling tank, in the reaction region feeding lime, PAC and PAM, and regulate pH to be 7.5-8.0; The dosage of described lime, PAC and PAM is respectively 0.5kg/t, 1.5kg/t, 0.05kg/t, and the hydraulic detention time HRT controlling reaction zone is 36min; Wherein, feeding lime can remove most sulfate ion in waste water, and follow-up anaerobically fermenting is more easily carried out, and the color producing species of waste water is removed more thorough, and CODcr removes more abundant; Adding PAC and PAM makes the suspended substance in water or other macromolecular substance be adsorbed the particulate matter forming easily precipitation, precipitates removal under gravity, and then realizes mud-water separation; Control settling region surface load q=0.8m simultaneously
3/ (m
2h); Concrete principle is as follows:
Ferrous ion and dye molecule play complexing action, become central ion, and then change the structure of dye molecule, make it variable color.And generate FeS throw out with toxic substance sulfide (being described for hydrogen sulfide and ferrous reaction formula) below, make waste water detoxification, all the other are excessive then generates colloid and throw out with the lime effect that adds in waste water, suspended substance in further adhesion waste water, add PAC reaction mechanism like this too, concrete reaction formula is as follows:
Fe
2++H
2S＝FeS↓+2H
+
Fe
2++2OH
-＝Fe(OH)
2↓
Ca
2++SO
4 2-＝CaSO
4↓
Al
3++3OH
-＝Al(OH)
3↓
By the coherency of colloid, not only combine with the suspended substance in waste water, also mutually collide between colloid and form larger particle.When adding flocculation agent PAM, hydrogen bond and Van der Waals force impel particle to form the material being formed further and be easy to precipitate, and then by action of gravity, realize being separated of suspended substance and supernatant liquor in waste water.
(2) waste water processed through step (1) is inputted anaerobic pond, Aerobic Pond and biochemical sedimentation basin successively, control volumetric loading Nv=1.73kgCOD in anaerobic pond
cr/ (m
3d), hydraulic detention time HRT=3.0d; Control volumetric loading Nv=0.71kgCOD in Aerobic Pond
cr/ (m
3d), residence time HRT=2.8d, controls surface load q=0.8m in biochemical sedimentation basin
3/ (m
2h); Under above-mentioned parameter condition, effectively can reduce the COD in waste water
cr, BOD
5value, concrete principle is as follows:
In anaerobic pond, contaminant particle in waste water is by the effect of anerobe, insoluble hydrolysis of organic matter is dissolved organic matter, the macromolecular substance of difficult for biological degradation is converted into the process of the small-molecule substance of readily biodegradable, and partial hydrolysate is decomposed into the material such as carbonic acid gas and biogas, thus significantly reduce CODcr, the BOD in waste water
5deng; In Aerobic Pond, suspended solids in waste water and gelatinoid are by activated sludge absorption, solubility organic sludge thing in waste water is then used as the nutrition of self-reproduction by the microorganism in active sludge, metabolic conversion is biomass cells, and is oxidized to final product (mainly CO
2).
(3) in the waste water input advanced treatment first order reaction settling tank that will process through step (2), and add ferrous sulfate and sulfuric acid, regulate pH to 3.0-3.5, the dosage of described ferrous sulfate is 1.5kg/t, this advanced treatment first order reaction settling tank is divided into Liang Ge district, reaction zone and settling region, and reaction zone establishes second order reaction groove altogether, every grade of hydraulic detention time is 12min, and second order reaction groove adds up to stop HRT=24min; And settling region surface load gets q=0.8m
3/ (m
2h); Under above-mentioned parameter condition, effectively can remove the acid insolubles in waste water, concrete principle is as follows:
Utilize acid out effect, the xylogen making in waste water part not be decomposed is separated out under sour environment, and by introducing medicament ferrous sulfate, strengthening the cohesion performance of precipitate, making it precipitate removal, and then realizes effectively being separated of acid insolubles and waste water supernatant.
(4), in the waste water input oxidizing reaction pond that will process through step (3), add hydrogen peroxide 2.0-4.0L/t, and control hydraulic detention time HRT=2.0h, with the CODcr in effective degrading waste water, colourity; Concrete principle is as follows: hydrogen peroxide is when catalyzer ferrous ion etc. exists, and can generate hydroxyl free radical, the decomposition mechanism of hydrogen peroxide is in systems in which:
Fe
2++H
2O
2→Fe
3++·OH+OH
-(1)
Fe
3++H
2O
2→Fe
2++HO
2·H
+(2)
Fe
2++·OH→Fe
3++HO
-(3)
Fe
3++HO
2·→Fe
2++H
++O
2(4)
·OH+H
2O
2→HO
2·+HO
2·(5)
Fe
2++HO
2·→HO
2 -+Fe
3+(6)
The strong oxidizer that this hydroxyl free radical is more conventional than some has higher oxidizing electrode current potential (OH+H
++ e
-→ H
2o, E
0=2.8V), therefore (OH) is a kind of very strong oxygenant, is specially adapted to the oxide treatment that bio-refractory or general chemical oxidation are difficult to the organic waste water proved effective.
(5), in the waste water input advanced treating secondary reaction settling basin that will process through step (4), the amount adding PAC, PAM and NaOH is respectively 0.15kg/t, 0.001kg/t, 0.6-1.2kg/t, and adjustment pH is 7.5-8.0; This advanced treatment first order reaction settling tank is divided into Liang Ge district, and be reaction zone and settling region respectively, reaction section establishes third order reaction groove altogether, and every grade of hydraulic detention time is 12min, and third order reaction groove adds up to stop HRT=36min, and settling region surface load gets q=0.8m
3/ (m
2h), under above-mentioned parameter condition, can effectively make the suspended substance in water or other macromolecular substance be adsorbed the particulate matter forming easily precipitation, remove particulate matter, concrete principle is as follows:
In waste water by oxidation, the PAC that adds forms colloid with the reaction in the caustic soda added, reaction formula is as follows:
Fe
3++3OH
-＝Fe(OH)
3↓
Al
3++3OH
-＝Al(OH)
3↓
By the coherency of colloid, not only combine with the suspended substance in waste water, also mutually collide between colloid and form larger particle.When adding flocculation agent PAM, hydrogen bond and Van der Waals force impel particle to form the material being formed further and be easy to precipitate, and then by action of gravity, realize mud-water separation.
(6) through the waste water of above-mentioned process: pH:6-9, colourity≤16 times, suspended substance≤30mg/L, BOD
5≤ 10mg/L, COD
cr≤ 60mg/L, ammonia nitrogen≤8mg/L, total phosphorus≤0.8mg/L, can reach emission standard; Wherein, stage contaminated wastewater index COD in above-mentioned wastewater treatment process
cr, BOD
5, colourity change as table 1 and Fig. 2:
From table 1 and Fig. 2: the waste water implementing described processing method process through this, CODcr, BOD
5, all remarkable emission standard lower than GB defined of colourity, namely illustrate that method of wastewater treatment of the present invention not only effectively can remove dyestuff, reduction organic contamination substrate concentration in waste water, and engineering example is run in 2 years, each stage procedure operating parameter is stablized, the temperature Change adaptive faculty of system to the fluctuation of concentration of water quality and the external world is strong, shows that method of wastewater treatment of the present invention is applicable to this firecracker wastewater treatment completely.
Embodiment 2
One, experiment purpose
By the treatment effect of method of wastewater treatment described in comparative analysis Evaluation operation example 1.
Two, experimental technique
This experiment is divided into control group and experimental group, wherein, the treatment process of control group and experimental group is as table 2: comparative example 1 and this comparative example of embodiment are for adopting common process, pre-treatment+biochemical treatment+conventional depth process, the process ration for the treatment of process described in itself and embodiment 1 and treatment effect synopsis are as table 2:
The treatment process synopsis of table 2 control group and experimental group
Three, experimental result
As known from Table 2: compared with comparative example 1, embodiment 1 is by adding ferrous sulfate at equalizing tank feed-water end, effectively can extend the duration of contact of the dyestuffs such as ferrous and rhodamine b extra 500, make it complexing abundant, and in pretreatment reaction settling tank feeding lime, PAC, PAM because Lime-Injecting, sulfate ion is made to obtain major part removing, and then anaerobically fermenting is more easily carried out, the color producing species of waste water is removed more thorough, and CODcr removes more abundant; And after equalizing tank and the process of pretreatment reaction settling tank, in waste water, CODcr is reduced to 7000 ~ 8000mg/L by 15000mg/L, and colourity is reduced to 2048 times by 8192 times, and supernatant liquor is without rose-colored, and turbidity is low; And by the volumetric loading in optimization anaerobic pond, Aerobic Pond and biochemical sedimentation basin and hydraulic detention time, in waste water, CODcr is reduced to 600 ~ 1000mg/L, and colourity is 512 ~ 1024 times; Acid out process and add the further process that ferrous sulfate strengthens cohesion performance and oxidizing reaction pond and advanced treating secondary reaction settling basin in advanced treatment first order reaction settling tank again, finally make discharged wastewater met the national standard, i.e. CODcr≤80mg/L, Se Du≤50 times, BOD
5≤ 20mg/L.
The above embodiment only have expressed several embodiment of the present invention, and it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to the scope of the claims of the present invention.It should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection domain of patent of the present invention should be as the criterion with claims.
Claims (10)
1. a treatment process for firecracker paper paper waste, is characterized in that, comprises the following steps:
(1) firecracker paper paper waste is inputted equalizing tank, pretreatment reaction settling tank successively; Wherein, add ferrous sulfate at the feed-water end of equalizing tank, the dosage of described ferrous sulfate is add 1-2kg in equalizing tank waste water per ton; Feeding lime, PAC and PAM in pretreatment reaction settling tank, and regulate pH to be 7.5-8.0; The dosage of described lime, PAC and PAM is respectively in pretreatment reaction settling tank waste water per ton and adds 0.3-0.7kg, 1-2kg and 0.03-0.07kg;
(2) waste water processed through step (1) is inputted anaerobic pond, Aerobic Pond and biochemical sedimentation basin successively;
(3) the waste water input advanced treatment first order reaction settling tank that will process through step (2), adds ferrous sulfate, and regulates pH to be 3.0-3.5 with the vitriol oil; The dosage of described ferrous sulfate is add 1-2kg in advanced treatment first order reaction settling tank waste water per ton;
(4) in the waste water input oxidizing reaction pond that will process through step (3), and add hydrogen peroxide, the dosage of described hydrogen peroxide is add 2-4L in the waste water of oxidizing reaction pond per ton;
(5) the waste water input advanced treating secondary reaction settling basin that will process through step (4), add PAC and PAM, and regulating pH to be 7.5-8.0 with NaOH, the dosage of described PAC and PAM is respectively in advanced treating secondary reaction settling basin waste water per ton and adds 140-160g and 0.8-1.2g.
2. the treatment process of firecracker paper paper waste according to claim 1, is characterized in that, the dosage of ferrous sulfate described in step (1) is add 1.4-1.6kg in equalizing tank waste water per ton.
3. the treatment process of firecracker paper paper waste according to claim 1 and 2, is characterized in that, the dosage of ferrous sulfate described in step (3) is add 1.5-1.6kg in advanced treatment first order reaction settling tank waste water per ton.
4. the treatment process of firecracker paper paper waste according to claim 3, it is characterized in that, step (3) described advanced treatment first order reaction settling tank is divided into reaction zone and settling region, wherein, reaction zone is provided with second order reaction groove, every grade of hydraulic detention time is 12min, and settling region surface load is 0.8m
3/ (m
2h).
5. the treatment process of firecracker paper paper waste according to claim 3, is characterized in that, the hydraulic detention time in equalizing tank described in step (1) is 12h.
6. the treatment process of firecracker paper paper waste according to claim 3, is characterized in that, in anaerobic pond described in step (2), volumetric loading is 1.73kgCOD
cr/ (m
3d), hydraulic detention time is 3d.
7. the treatment process of firecracker paper paper waste according to claim 3, is characterized in that, in Aerobic Pond described in step (2), volumetric loading is 0.71kgCOD
cr/ (m
3d), hydraulic detention time is 2.8d.
8. the treatment process of firecracker paper paper waste according to claim 3, is characterized in that, in biochemical sedimentation basin described in step (2), surface load is 0.8m
3/ (m
2h).
9. the treatment process of firecracker paper paper waste according to claim 3, is characterized in that, the hydraulic detention time in the described oxidizing reaction pond of step (4) is 2.0h.
10. the treatment process of firecracker paper paper waste according to claim 3, it is characterized in that, the described advanced treating secondary reaction settling basin of step (5) is divided into reaction zone and settling region, wherein, reaction zone is provided with third order reaction groove, every grade of hydraulic detention time is 12min, and settling region surface load is 0.8m
3/ (m
2h).
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