CN103159385A - Treatment method for carton packaging and printing production wastewater - Google Patents

Treatment method for carton packaging and printing production wastewater Download PDF

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Publication number
CN103159385A
CN103159385A CN2013101296944A CN201310129694A CN103159385A CN 103159385 A CN103159385 A CN 103159385A CN 2013101296944 A CN2013101296944 A CN 2013101296944A CN 201310129694 A CN201310129694 A CN 201310129694A CN 103159385 A CN103159385 A CN 103159385A
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electrolysis
treatment
reaction
waste water
wastewater
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王宏
王宁
盛伟
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Hefei Zhongda Environment Science & Technology Co Ltd
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Hefei Zhongda Environment Science & Technology Co Ltd
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Abstract

The invention discloses a treatment method for carton packaging and printing production wastewater. The treatment method comprises the following steps of: a, adjusting the pH value of the carton packaging and printing production wastewater to be between 2 to 4, performing acid precipitation reaction, and eliminating floating dross; b, performing aeration micro-electrolysis reaction on the wastewater after acid precipitation; c, adding alkali in the wastewater after micro-electrolysis, adjusting the pH value to be between 8 to 9 and generating a precipitate, and removing the precipitate generated by the reaction; d, conveying the wastewater after precipitation in an aerobiotic treatment pond and performing biochemical treatment; and e, precipitating the wastewater after the biochemical treatment and then draining to the outside, wherein the aeration micro-electrolysis reaction performs a strong oxidation reaction in an aeration micro-electrolysis reactor; fillers in the aeration micro-electrolysis reactor are waste iron scraps and active carbon; the mass ratio of the waste iron scraps to the active carbon is (1 to 3): 1; and the wastewater after the biochemical treatment is precipitated in an SBR (sequencing batch reactor) pond, and the supernatant is drained after reaching the standard. The treatment method disclosed by the invention is low in construction and use costs, and capable of preventing the sludge bulking of an SBR system and guaranteeing the stable running of the system.

Description

A kind of packed in cases and print production method of wastewater treatment
Technical field
The present invention relates to a kind for the treatment of process of waste water, relate in particular to the treatment process of a kind of packed in cases, print production waste water.
Background technology
Development along with commodity economy, on market, the Packaging economy of commodity of all kinds promotes the fast development of dressing bag, packing except household electrical appliance, dress ornament etc., packaging is especially in continuous surging all trades and professions of infiltrating commodity economy, so the manufacturing pollution problem of following one by one packing is also following.The carton factory effluent contains vinylformic acid, band color base group, shredded paper slurry in waste water, and the organism of a large amount of difficult for biological degradation such as starchy material, and principal pollutant are COD, SS, colourity etc., and Biodegradability of Wastewater is poor.
At present, domestic processing for printing packaging, print production waste water, the following treatment process of general employing: air supporting+contact oxidation technology.But the method is mainly water outlet is difficult to qualified discharge, especially shows COD, colourity aspect be difficult to satisfy the qualified discharge requirement, and sludge bulking to occur easily aerobic system.
Summary of the invention
The technical problem to be solved in the present invention is to provide the treatment process of a kind of packed in cases and printing packaging factory effluent, this treatment process can improve the biodegradability of waste water, can greatly reduce again aerobic system sludge bulking easily occurs, water outlet is COD not only, and the equal energy of colourity stably reaching standard, management is simple, and use cost is low.
In order to solve the problems of the technologies described above, the technical solution used in the present invention is: a kind of packed in cases and print production method of wastewater treatment comprise the following steps:
Carry out acid precipitation reaction between the pH value to 2 of a, adjusting packed in cases, print production waste water~4, remove the floating scum silica frost;
B, the waste water after acid out is carried out the aeration micro-electrolysis reaction;
Waste water after c, little electrolysis adds alkali and adjusts generation precipitation between pH value to 8~9, and removes the throw out that dereaction generates;
Waste water after d, precipitation enters the aerobic treatment pond and carries out biochemical treatment;
Waste water after e, biochemical treatment effluxes after precipitation.
As preferably, in step a, acid precipitation reaction carries out in the acid out pond.
As preferably, in step b, described aeration micro-electrolysis reaction carries out strong oxidizing reaction in the aeration micro-electrolysis reactor, improves the biodegradability of waste water.
As preferably, the filler in the aeration micro-electrolysis reactor is waste iron filing and gac; The mass ratio of waste iron filing and gac is 1~3:1.
As preferably, in step e, the waste water after biochemical treatment precipitates in the SBR pond, the supernatant liquor qualified discharge.
The invention has the beneficial effects as follows:
Utilize acid-precipitation method to carry out pre-treatment, separate out vinylformic acid and band color base group, remove through solid-liquid separation, reduce follow-up biochemical system loading; Utilize the aeration micro-electrolysis reaction, to macromole, long-chain, ring-type hardly degraded organic substance open loop chain rupture in waste water, the biodegradability of waste water is improved; The molysite or the ferrous salt that utilize the aeration micro-electrolysis reactor to generate are conducive to prevent the sludge bulking of SBR system, guarantee system stable operation.
Simultaneously, utilize the strong acidic environment of acid out, be fit to the running environment of micro-electrolysis reactor; Micro-electrolysis reactor water outlet pH value reduces the chemical feeding quantity of subsequent adjustment pH between 5~6, reduce running cost.
Description of drawings
The present invention is further detailed explanation below in conjunction with the drawings and specific embodiments.
Fig. 1 is the schema of packed in cases of the present invention and print production method of wastewater treatment embodiment.
Embodiment
As shown in Figure 1, a kind of packed in cases and print production method of wastewater treatment the steps include:
A, regulate the printing packaging factory effluent in the pH regulator pond the pH value to 3 left and right, the resene pollutent (as water-based ink) that dissolves in waste water is separated from water;
B, the scum silica frost that floats after acid out is separated with waste water;
C, waste water enter and carry out the aeration micro-electrolysis reaction in the aeration micro-electrolysis reactor, with the macromole in waste water, long-chain, ring-type hardly degraded organic substance open loop chain rupture;
Waste water after d, little electrolysis flow into and adds alkali (as NaOH) in chemical reaction pond, regulates and generates precipitation or throw out between pH value to 8~9; Described alkali is Ca (OH) also 2, preferably add NaOH here, because the solid waste that adds NaOH to produce is few, reduce secondary pollution;
E, water outlet are passed into settling tank, the throw out that generates except dereaction in settling tank;
F, settling tank water outlet enter the sbr reactor pond and carry out aerobic treatment, the degraded most COD;
Standard discharge after precipitation after g, sewage aerobic are processed.
Table 1 is the measured data before and after the printing packaging production wastewater treatment:
Table 1
Figure BDA0000305079071
Found out by table 1: utilize the aeration micro-electrolysis reaction, to macromole, long-chain, ring-type hardly degraded organic substance open loop chain rupture, the biodegradability of waste water obviously improves, the biological oxygen demand BOD shown in table 1 50.22 be increased to 0.42 with the ratio B/C of chemical oxygen demand COD before process, but B/C is the biochemical treatment index that industry is generally acknowledged more than or equal to 0.3; So that subsequent disposal and final qualified discharge.
In the present embodiment, the mature and reliable, easy to operate such as the acid precipitation reaction groove that uses, aeration micro-electrolysis reactor, equipment investment cost and use cost are all lower, and acid adjustment, accent alkali are all also the chemical industry operations that is easy to grasp, the H that uses 2SO 4, acid, the alkali such as NaOH is all industrial chemicals at a low price, use cost is also very low, this just makes the overall use cost of the treatment process of the present embodiment greatly reduce.
In addition, except acid out carries out in the aeration micro-electrolysis reactor at acid precipitation reaction groove, micro-electrolysis reaction, other processing is all carried out in the treating pond with a constant volume, can certainly carry out in the pipeline of serialization, but treating pond can hold the waste water of more volume, can make first, after the waste water that enters in the pond in mix and cushion, make effluent index more stable, be convenient to carry out on a large scale wastewater treatment.
The aeration micro-electrolysis reaction is as long as add active metal and catalyzer in waste water, and guarantee that waste water and active metal and catalyzer have and to realize certain duration of contact, the preferred metal of the present embodiment is waste iron filing, realize that the treatment of wastes with processes of wastes against one another reduces processing cost, catalyzer is gac, reaction is being carried out in the aeration micro-electrolysis reactor of filler take waste iron filing and gac, because with respect to building reaction tank, the cost of making reactor is lower, the mass ratio of waste iron filing and gac is 1~3:1, and hydraulic detention time is greatly about 1~2 hour; Experiment shows: the mass ratio of waste iron filing and gac is 2:1, and treatment effect is best.
After the aeration micro-electrolysis reaction, outlet waste water is passed into and carries out aerobic microbiological in the SBR pond and process, qualified discharge after precipitation.Simultaneously, the Fe of aeration micro-electrolysis reaction generation 2+, Fe 3+Can effectively prevent the sludge bulking in SBR pond.
Above-described embodiment of the present invention does not consist of the restriction to protection domain of the present invention.Any modification of doing within the spirit and principles in the present invention, be equal to and replace and improvement etc., within all should being included in claim protection domain of the present invention.

Claims (5)

1. a packed in cases and print production method of wastewater treatment is characterized in that comprising the following steps:
Carry out acid precipitation reaction between the pH value to 2 of a, adjusting packed in cases, print production waste water~4, remove the floating scum silica frost;
B, the waste water after acid out is carried out the aeration micro-electrolysis reaction;
Waste water after c, little electrolysis adds alkali and adjusts generation precipitation between pH value to 8~9, and removes the throw out that dereaction generates;
Waste water after d, precipitation enters the aerobic treatment pond and carries out biochemical treatment;
Waste water after e, biochemical treatment effluxes after precipitation.
2. packed in cases production wastewater treatment method according to claim 1 is characterized in that: in step a, described acid precipitation reaction carries out in the acid out pond.
3. the treatment process of packed in cases factory effluent according to claim 1, it is characterized in that: in step b, described aeration micro-electrolysis reaction carries out strong oxidizing reaction in the aeration micro-electrolysis reactor.
4. the treatment process of packed in cases factory effluent according to claim 3 is characterized in that: the filler in described aeration micro-electrolysis reactor is waste iron filing and gac; The mass ratio of described waste iron filing and gac is 1~3:1.
5. the treatment process of packed in cases factory effluent according to claim 1 is characterized in that: in step e, the waste water after biochemical treatment precipitates in the SBR pond, the supernatant liquor qualified discharge.
CN2013101296944A 2013-04-15 2013-04-15 Treatment method for carton packaging and printing production wastewater Pending CN103159385A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104496088A (en) * 2014-11-25 2015-04-08 苏州中亚油墨有限公司 Water-based ink wastewater treatment process
CN106045208A (en) * 2016-07-12 2016-10-26 佛山杰致信息科技有限公司 Domestic sewage treatment method

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1834041A (en) * 2006-03-30 2006-09-20 南京科环环境***工程有限公司 Aqueous ink wastewater treatment technique

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1834041A (en) * 2006-03-30 2006-09-20 南京科环环境***工程有限公司 Aqueous ink wastewater treatment technique

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
刘林等: "混凝气浮-微电解-SBR工艺处理油墨与黏合剂混合废水", 《环境工程》 *
吴忠山: "纸箱印刷包装行业废水处理技术探讨", 《机电信息》 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104496088A (en) * 2014-11-25 2015-04-08 苏州中亚油墨有限公司 Water-based ink wastewater treatment process
CN106045208A (en) * 2016-07-12 2016-10-26 佛山杰致信息科技有限公司 Domestic sewage treatment method

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Application publication date: 20130619