CN116282614A - Bamboo product processing wastewater treatment system and treatment method - Google Patents
Bamboo product processing wastewater treatment system and treatment method Download PDFInfo
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- 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
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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
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- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
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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
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
- C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
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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
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
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- C02F1/46104—Devices therefor; Their operating or servicing
- C02F1/46109—Electrodes
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- 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
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- 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
- C02F1/5272—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using specific organic precipitants
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- 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
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- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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- C02F1/66—Treatment of water, waste water, or sewage by neutralisation; pH adjustment
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- 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
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- C02F1/78—Treatment of water, waste water, or sewage by oxidation with ozone
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- C02F3/34—Biological treatment of water, waste water, or sewage characterised by the microorganisms used
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- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/34—Biological treatment of water, waste water, or sewage characterised by the microorganisms used
- C02F3/342—Biological treatment of water, waste water, or sewage characterised by the microorganisms used characterised by the enzymes used
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- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
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Abstract
The invention relates to the technical field of wastewater treatment, and discloses a wastewater treatment system for bamboo product processing, which aims at solving the problems of high difficulty and poor treatment effect of the wastewater treatment for bamboo product processing in the prior art. The system is efficient and stable. The invention also provides a method for treating the bamboo product processing wastewater by using the wastewater treatment system, and the wastewater treated by the method can reach the standard and be discharged.
Description
Technical Field
The invention relates to the technical field of wastewater treatment, in particular to a system and a method for treating wastewater generated in bamboo product processing.
Background
In order to meet the demands of consumers, the production amount and the production variety of the bamboo product industry are increasingly increased, and the wastewater amount and the component complexity degree generated in the bamboo product processing process are also increased, so that the wastewater produced in the bamboo product processing process can cause a huge burden on the water environment if the wastewater is not treated. The waste water generated by bamboo product processing mainly comes from H 2 O 2 A cooking process and a carbonization process. H 2 O 2 The waste water produced in the digestion is waste water with pH value of 3-3.5 and COD of about 30000 mg/L. The COD of the carbonized wastewater generated by carbonization is slightly lower than that of the cooking wastewater, but is also higher than 20000mg/L. In general, the wastewater produced by bamboo product processing contains a large amount of organic matters such as bamboo tar, polysaccharide, amino acid terpenes, phenolic acid, bamboo fibers, bamboo acid liquid and the like, has high COD, has turbid chromaticity and peculiar smell, and has high treatment difficulty.
For example, "a bamboo carbonization wastewater treatment system and method" with publication number CN105693030a disclosed on chinese patent literature comprises a materialization treatment system, a biochemical treatment system and a deep treatment system which are sequentially communicated, wherein the materialization treatment system comprises a steam discharge tank, a regulating tank, a coagulating sedimentation tank and a Fenton oxidation tank which are sequentially communicated, a boiler is communicated to the steam discharge tank, a first heat exchanger for cooling and heating boiler water is arranged between the steam discharge tank and boiler water, the biochemical treatment system comprises an anaerobic reactor and an aerobic biochemical tank which are sequentially communicated, a second heat exchanger is arranged between the regulating tank and the anaerobic reactor, and the deep treatment system comprises a secondary sedimentation tank and an activated carbon adsorption tank which are sequentially communicated. The treatment isThe object of the system treatment is bamboo carbonization wastewater, and relative to the bamboo carbonization wastewater, H 2 O 2 The COD value in the digestion wastewater is higher, the pH value is lower, and therefore, the system has the advantages of high-grade water quality and high-grade water quality 2 O 2 Cooking waste water or with H 2 O 2 The treatment effect of the carbonized wastewater after the mixture of the stewing wastewater is poor.
Disclosure of Invention
The invention aims at solving the problems of high difficulty and poor treatment effect of the bamboo product processing wastewater in the prior art, and provides a bamboo product processing wastewater treatment system which can effectively degrade organic matters in the bamboo product processing wastewater and decolorize, denitrify and desulfurate the organic matters, so that the bamboo product processing wastewater treated by the system reaches the dischargeable standard. The invention also provides a treatment method of the bamboo product processing wastewater, and the method has low dosage and good treatment effect.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
a bamboo product processing wastewater treatment system comprises
The water collecting tank is used for collecting the bamboo product processing wastewater;
the iron-carbon micro-electrolysis device is used for carrying out micro-electrolysis reaction on the wastewater in the water collecting tank;
the oxidation tank is used for further oxidizing the waste water subjected to micro-electrolysis;
the regulating tank is used for regulating the pH value of the oxidized wastewater;
the multi-element electrolysis device is used for electrolyzing the wastewater with the pH value adjusted and comprises a first-stage multi-element electrolysis device, a first-stage reaction sedimentation tank, a second-stage multi-element electrolysis device and a second-stage reaction sedimentation tank which are connected in sequence;
the biochemical treatment device is used for carrying out biochemical treatment on the electrolyzed wastewater and comprises an anaerobic tank, a facultative tank, an aerobic tank, a membrane bioreactor arranged at the tail end of the aerobic tank and an adsorption sedimentation tank which are connected in sequence;
a sludge treatment system for receiving and dewatering the sludge produced in the treatment system.
The bamboo product processing wastewater contains a large amount of bamboo tar, polysaccharide, amino acid terpene, phenolic acid, bamboo fiber and bamboo acid liquor, wherein the bamboo tar can inhibit microorganism propagation, and the biochemical degradation efficiency of high molecular organic matters such as polysaccharide, bamboo fiber and the like is low. According to the invention, the micro-electrolysis device, the oxidation pond and the multi-element electrolysis device are used for pretreating and detoxication the bamboo product processing wastewater, and biochemical toxic substances and nondegradable pollutants in the wastewater are removed to the greatest extent through pretreatment of the bamboo product processing wastewater so as to ensure the subsequent biochemical water quality performance, and then the pretreated wastewater is subjected to biochemical treatment. The iron-carbon micro-electrolysis, oxidation and multi-element electrolysis process in the pretreatment stage can open the ring of biochemical toxic substances and nondegradable pollutants, open the long chain of bamboo fibers and lignin, improve the biodegradability of wastewater, improve the B/C ratio, further condition the water quality, improve the biodegradability and microbial activity of the wastewater, improve the biochemical efficiency, control the COD concentration, lighten the load of a biochemical system and meet the requirements of nanotubes. The pretreated wastewater is subjected to biochemical degradation in an anaerobic tank, a facultative tank and an aerobic tank in sequence, and then mud-water separation is performed through a membrane bioreactor, so that the microbial agent is effectively intercepted while the high-efficiency degradation of pollutants is further performed on the water quality, and the sludge loss is prevented. The effluent of the membrane bioreactor is precipitated under the action of the adsorbent and the flocculant, and the supernatant can reach the standard and be discharged to the surrounding water body. The materialized and biochemical sludge generated by the system enters a sludge treatment system for dehydration treatment, the separated supernatant flows back to a water collecting tank for reprocessing, and the sludge cake is transported and treated.
Preferably, the oxidation pond is provided with a hydrogen peroxide dosing device and an ozone generator.
After iron-carbon micro-electrolysis, the waste water contains ferrous ions, the Fenton reaction can be generated by adding hydrogen peroxide, organic matters are further decomposed, the oxidation effect of the hydrogen peroxide can be improved by introducing ozone into the waste water, the addition amount of the hydrogen peroxide is reduced, the oxidation effect is enhanced, ferrous hydroxide can be fully converted into ferric hydroxide, and the color reversal caused by the ferrous ions in the subsequent treatment process is avoided.
Preferably, the activated sludge of the biochemical treatment device includes nitrite bacteria, nitrate bacteria, cellulose degrading bacteria and lignin degrading bacteria.
The wastewater produced in bamboo product processing contains a large amount of cellulose, and cellulose degrading bacteria and lignin degrading bacteria can degrade cellulose into small molecular saccharides which are easy to decompose.
Preferably, a biological enzyme adding device is arranged in the biochemical treatment device, and the biological enzyme comprises cellulase and hemicellulase.
The biological enzyme is a protein molecule with a catalytic function, can catalyze specific compounds and specific biochemical reaction processes, and reduces the reaction activation energy. The biological enzyme can strengthen the degradation effect of flora in the activated sludge through the catalysis of the biological enzyme, accelerate the biochemical degradation speed of degradable pollutants, improve the reaction rate, improve the broad spectrum of biochemical reaction, and degrade organic matters which are difficult to biodegrade originally to different degrees because of the strengthening effect of the biological enzyme, thereby obviously improving the treatment efficiency and the treatment load of the biochemical process, greatly reducing COD and chromaticity of the effluent and improving the biodegradability. The biological enzyme dosage is small, the sludge flora structure can be optimized, the active sludge biochemical activity is improved, the active sludge growth environment is further improved, under the condition of lower water quality B/C, the biochemical treatment device can stably operate, the water quality of the effluent is stable, only the biological enzyme consumption caused by the discharged water is needed to be supplemented in the stable operation process, the dosage of the corresponding materialized chemical and the sludge production can be reduced, and the treatment cost is further reduced.
Preferably, a neutralization tank is arranged between the oxidation tank and the regulating tank, and the neutralization tank is connected with a lime dosing device.
The wastewater contains a large amount of flocculent suspended matters after iron-carbon micro-electrolysis and oxidation, and the flocculent suspended matters can be fully separated in a precipitation form by mixing the wastewater with lime.
Preferably, the adsorption sedimentation tank is connected with an adsorbent dosing device and a flocculating agent dosing device.
Preferably, the primary reaction sedimentation tank and the secondary reaction sedimentation tank are respectively connected with a lime dosing device.
Lime is alkaline and can neutralize acidic wastewater, and the cost is low.
Preferably, the sludge treatment system is also connected to the sump by a pipe.
Liquid removed from the sludge in the sludge treatment system may be piped into a sump for circulation to be treated.
A method for treating bamboo product processing wastewater by using a wastewater treatment system, comprising the following steps:
(1) Carrying out micro-electrolysis reaction on the collected bamboo product processing wastewater, adding an oxidant for mixed oxidation, removing sediment, and adding acid to adjust the pH value of the wastewater to 3-4;
(2) Carrying out primary electrolysis treatment on the wastewater with the pH value adjusted, adding a neutralizing agent into the wastewater after electrolysis until the pH value is 7-9, removing the precipitate, then carrying out secondary electrolysis treatment, adding the neutralizing agent until the pH value of the wastewater is 7-8, and carrying out secondary precipitation;
(3) And (3) performing anaerobic-facultative-aerobic biochemical treatment on the wastewater after the sediment is removed, filtering the wastewater by a membrane bioreactor, and mixing the wastewater with an adsorbent and a flocculating agent to obtain supernatant fluid, wherein the supernatant fluid can be discharged.
H 2 O 2 The waste water from digestion is acidic, pH is 3-4, and the carbonized waste water is slightly acidic, pH is 5-7, so that the mixed bamboo product processing waste water is generally acidic, the decomposition effect of the direct micro-electrolysis reaction is good, few medicines are added, the micro-electrolyzed waste water is subjected to hydrogen peroxide and ozone to open polymer chains and rings by utilizing hydroxyl radicals generated by catalytic oxidation, and then the two-stage multi-electrolysis treatment is performed to create better biochemical water quality conditions. The wastewater is acidic when entering primary electrolytic treatment, fe in an electrolytic device has stronger reducibility in an acidic environment, is oxidized into ferrous ions and then forms hydroxide with hydroxide generated by water electrolysis, impurity particles are adsorbed by hydroxide flocculation, and floc is generated to adsorb and separate organic matters and suspended matters in the wastewater; after primary electrolysis and neutralization to remove sediment, the wastewater is alkaline, and secondary electrolysis can dissociate or ionize non-electrolytes such as humic acid and polycarboxylic acid compounds of bamboo acid in the wastewater under alkaline conditions, thereby reducing COD and ammonia nitrogen. An adjusting tank is arranged between the oxidation and the multielement electrolysis, and the pH value of the wastewater entering the multistage electrolysis device can be controlled so as to improve the electrolysis effect. Performing biochemical treatment on the electrolyzed supernatant, and under the combined action of microorganisms and enzymes, performing cellulose in the wastewaterAnd other organic molecules are decomposed, the COD and ammonia nitrogen content are reduced, suspended matters in the wastewater are precipitated under the action of the adsorbent and the flocculant, and the supernatant fluid reaches the dischargeable standard.
Preferably, the step (1) further comprises the steps of carrying out micro-electrolysis reaction on the bamboo product processing wastewater, mixing and oxidizing the bamboo product processing wastewater with an oxidant, adding lime, removing sediment, and adding acid to adjust the pH of the wastewater to 3-4.
Preferably, in the step (3), the adsorbent is one or more of activated carbon, diatomite, zeolite, resin adsorbent and humic acid adsorbent, and the flocculant is polyacrylamide.
Therefore, the invention has the following beneficial effects: the method for treating the bamboo product processing wastewater primarily decomposes organic matters difficult to biochemically degrade by a pretreatment detoxification technology, reduces the concentration of biotoxic substances in the wastewater, and improves the effect of subsequent biochemical treatment; the invention combines the microorganism treatment technology and the biological enzyme biochemical strengthening technology, improves the degradation effect of biochemical treatment on organic matters in the bamboo product processing wastewater, has strong effect of reducing COD, has good decomposition effect on bamboo leaf flavone, polysaccharide, amino acid terpene, phenolic acid and bamboo fiber contained in the bamboo product wastewater, realizes high efficiency and stability of a wastewater treatment system, and ensures that the treated wastewater can reach the standard and be discharged.
Drawings
FIG. 1 is a flow chart of the processing method of the present invention.
Detailed Description
The invention is further described with reference to the drawings and the detailed description.
Example 1
A bamboo product processing wastewater treatment system comprises a water collecting tank, an iron-carbon tower, an oxidation tank, a neutralization tank, a pH regulating tank, a primary multi-element electrolysis device, a primary reaction sedimentation tank, a secondary multi-element electrolysis device, a secondary reaction sedimentation tank, an intermediate tank, a UASB reactor, a facultative tank, an aerobic tank and an adsorption sedimentation tank which are sequentially connected, wherein the iron-carbon tower is internally provided with coke filler and iron-carbon filler with the mass ratio of 2:5, the oxidation tank is internally provided with a hydrogen peroxide dosing device and an ozone generator, the neutralization tank, the primary reaction sedimentation tank and the secondary reaction sedimentation tank are respectively connected with a lime dosing device, the adsorption sedimentation tank is connected with an adsorbent dosing device and a flocculating agent dosing device, a membrane bioreactor is arranged between the tail end of the aerobic tank and the adsorption sedimentation tank, bacterial species in the UASB reactor, the facultative tank and the aerobic tank are nitrite bacteria, nitrate bacteria, cellulose degradation bacteria and lignin degradation bacteria, the UASB reactor is connected with a cellulase and a semi-dosing device, a sludge pipe is arranged between the UASB reactor, the facultative tank and the bottom of the oxygen tank is communicated with the cellulase and the oxygen tank, and a floating device is arranged between the UASB reactor and the oxygen tank and the air floatation device; the system also comprises a sludge concentration tank connected with the oxidation tank, the neutralization tank, the primary reaction sedimentation tank, the secondary reaction sedimentation tank, the UASB reactor, the facultative tank, the aerobic tank and the adsorption sedimentation tank, wherein the sludge concentration tank is connected with the filter press, and the sludge concentration tank and the filter press are respectively provided with a pipeline connected with the water collecting tank.
The process flow of the bamboo product processing wastewater treated by the wastewater treatment system is shown in fig. 1, and comprises the following steps:
(1) Conveying the bamboo product processing wastewater in the water collecting tank to an iron-carbon tower through a pump for carrying out micro-electrolysis reaction for 2h, then flowing the wastewater into an oxidation tank, mixing and oxidizing the wastewater with hydrogen peroxide and ozone for 2h, flowing the wastewater into a neutralization tank, mixing the wastewater with lime to pH 8, flowing the supernatant into a pH adjusting tank, and adding sulfuric acid into the wastewater until the pH of the wastewater is 4;
(2) The wastewater with the pH value adjusted flows into a primary multi-element electrolysis device for electrolysis for 1h, lime is added into the wastewater flowing into a primary reaction sedimentation tank until the pH value is 8, supernatant fluid enters a secondary multi-element electrolysis device for reaction for 1h, and the supernatant fluid flows into a secondary reaction sedimentation tank and is mixed with lime until the pH value is 7;
(3) Pumping the supernatant into an intermediate water tank, sequentially flowing the supernatant into a UASB reactor, an air floatation tank, a facultative tank, an aerobic tank and a membrane bioreactor from intermediate water, wherein the residence time of the UASB reactor is 40h, the residence time of the facultative tank is 20h, the residence time of the facultative tank is 60h, the addition amounts of cellulase and hemicellulase are respectively 0.15% and 0.1% of the mass of wastewater in the UASB reactor, filtering the wastewater by the membrane bioreactor, and mixing the wastewater with 0.1% of activated carbon and 0.02% of polyacrylamide in an adsorption sedimentation tank to obtain supernatant which can be discharged;
(4) The method comprises the steps of conveying sediment in an oxidation tank, a neutralization tank, a primary reaction sedimentation tank, a secondary reaction sedimentation tank, a UASB reactor, a facultative tank, an aerobic tank and an adsorption sedimentation tank to a sludge concentration tank by a pump, refluxing supernatant of the sludge concentration tank to a water collecting tank, filtering sludge in a filter press, and conveying and disposing obtained mud cakes outside, and refluxing filtrate to the water collecting tank.
Example 1 the quality of wastewater in a sump and the quality of treated effluent are shown in the following table:
| type of waste water | COD(mg/L) | SS(mg/L) | Chromaticity (times) | Total nitrogen (mg/L) | Ammonia nitrogen (mg/L) | Total phosphorus (mg/L) |
| Water quality of water collecting tank | 25030 | 890 | 200 | 261 | 168 | 38 |
| Effluent quality | 87 | 52 | 30 | / | 9 | 0.2 |
The water quality of the wastewater treated by the treatment system and the treatment method reaches the dischargeable standard.
Comparative example 1
The difference from example 1 is that the addition amounts of cellulase and hemicellulase in step (3) of the treatment process are 0.
Comparative example 1 the quality of wastewater in a sump and the quality of treated effluent are shown in the following table:
| type of waste water | COD(mg/L) | SS(mg/L) | Chromaticity (times) | Total nitrogen (mg/L) | Ammonia nitrogen (mg/L) | Total phosphorus (mg/L) |
| Water quality of water collecting tank | 25030 | 890 | 200 | 261 | 168 | 38 |
| Effluent quality | 132 | 64 | 30 | / | 14 | 0.3 |
As is clear from the above table, the treatment effect is good when the bio-enzyme-assisted microorganism is used in the biochemical treatment system.
Claims (10)
1. A bamboo product processing wastewater treatment system is characterized by comprising
The water collecting tank is used for collecting the bamboo product processing wastewater;
the iron-carbon micro-electrolysis device is used for carrying out micro-electrolysis reaction on the wastewater in the water collecting tank;
the oxidation tank is used for further oxidizing the waste water subjected to micro-electrolysis;
the pH adjusting tank is used for adjusting the pH of the oxidized wastewater;
the multi-element electrolysis device is used for electrolyzing the wastewater with the pH value adjusted and comprises a first-stage multi-element electrolysis device, a first-stage reaction sedimentation tank, a second-stage multi-element electrolysis device and a second-stage reaction sedimentation tank which are connected in sequence;
the biochemical treatment device is used for carrying out biochemical treatment on the electrolyzed wastewater and comprises an anaerobic tank, a facultative tank, an aerobic tank, a membrane bioreactor arranged at the tail end of the aerobic tank and an adsorption sedimentation tank which are connected in sequence;
a sludge treatment system for receiving and dewatering the sludge produced in the treatment system.
2. The system for treating wastewater from bamboo product processing as recited in claim 1, wherein the oxidation tank is provided with a hydrogen peroxide dosing device and an ozone generator.
3. A bamboo product processing wastewater treatment system according to claim 1 and wherein said activated sludge of said biochemical treatment means comprises nitrite bacteria, nitrate bacteria, cellulose degrading bacteria and lignin degrading bacteria.
4. A system for treating wastewater from bamboo product processing as claimed in claim 1 or 3, wherein said biochemical treatment device is provided with a biological enzyme adding device, and the biological enzyme comprises cellulase and hemicellulase.
5. A bamboo product processing wastewater treatment system according to claim 1 or 2 and wherein a neutralization tank is provided between said oxidation tank and said pH adjusting tank, said neutralization tank being connected to a lime dosing device.
6. A bamboo product processing wastewater treatment system according to claim 1 and wherein said primary and secondary reaction tanks are each coupled to a lime dosing unit.
7. A bamboo product processing wastewater treatment system according to claim 1 and wherein said adsorption precipitation tank is coupled to an adsorbent dispensing means and a flocculant dispensing means.
8. A method of treating bamboo product processing wastewater using the wastewater treatment system of claim 1, comprising the steps of:
(1) Carrying out micro-electrolysis reaction on the collected bamboo product processing wastewater, adding an oxidant for mixed oxidation, removing sediment, and adding acid to adjust the pH value of the wastewater to 3-4;
(2) Carrying out primary electrolysis treatment on the wastewater with the pH value adjusted, adding a neutralizing agent into the wastewater after electrolysis until the pH value is 7-9, removing the precipitate, then carrying out secondary electrolysis treatment, adding the neutralizing agent until the pH value of the wastewater is 7-8, and carrying out secondary precipitation;
(3) And (3) performing anaerobic-facultative-aerobic biochemical treatment on the wastewater after the sediment is removed, filtering the wastewater by a membrane bioreactor, and mixing the wastewater with an adsorbent and a flocculating agent to obtain supernatant fluid, wherein the supernatant fluid can be discharged.
9. A method for treating bamboo product processing wastewater according to claim 8 and also comprising the steps of subjecting the bamboo product processing wastewater to a micro-electrolysis reaction, mixing the bamboo product processing wastewater with an oxidant for oxidation, adding lime, removing precipitate, and adding acid to adjust the pH of the wastewater to 3-4.
10. The method of claim 8, wherein in the step (3), the adsorbent is one or more of activated carbon, diatomaceous earth, zeolite, resin adsorbent and humic acid adsorbent, and the flocculant is polyacrylamide.
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Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103145274A (en) * | 2013-03-15 | 2013-06-12 | 中北大学 | Method and device for treating wastewater by advanced oxidation process |
| CN105271620A (en) * | 2015-11-13 | 2016-01-27 | 西华大学 | Method for efficiently treating bamboo shoot processing wastewater |
| CN105776624A (en) * | 2014-12-17 | 2016-07-20 | 厦门紫金矿冶技术有限公司 | Method for ozonizing printing and dyeing wastewater |
| CN107473513A (en) * | 2017-09-04 | 2017-12-15 | 杭州宸祥环境工程有限公司 | A kind of bamboo product waste water Fenton processing unit and method |
| CN107555712A (en) * | 2017-09-04 | 2018-01-09 | 杭州绿球科技有限公司 | A kind of electrolytic bamboo product wastewater treatment equipment |
| CN207159049U (en) * | 2017-09-04 | 2018-03-30 | 杭州绿球科技有限公司 | One kind utilizes light electrolysis, anaerobism and BAF PROCESS FOR TREATMENT bamboo product waste plants |
| CN108083570A (en) * | 2017-12-21 | 2018-05-29 | 浙江创伟竹业开发有限公司 | A kind of bamboo wood heat treatment spent liquor processing method |
| CN109650671A (en) * | 2019-01-24 | 2019-04-19 | 浙江省环境保护科学设计研究院 | A kind of the diversification integrated treatment process and device of high concentration bamboo product waste water |
| CN114230020A (en) * | 2021-11-11 | 2022-03-25 | 四川工商职业技术学院 | Treatment method of bamboo pretreatment wastewater |
-
2022
- 2022-11-03 CN CN202211370642.1A patent/CN116282614A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103145274A (en) * | 2013-03-15 | 2013-06-12 | 中北大学 | Method and device for treating wastewater by advanced oxidation process |
| CN105776624A (en) * | 2014-12-17 | 2016-07-20 | 厦门紫金矿冶技术有限公司 | Method for ozonizing printing and dyeing wastewater |
| CN105271620A (en) * | 2015-11-13 | 2016-01-27 | 西华大学 | Method for efficiently treating bamboo shoot processing wastewater |
| CN107473513A (en) * | 2017-09-04 | 2017-12-15 | 杭州宸祥环境工程有限公司 | A kind of bamboo product waste water Fenton processing unit and method |
| CN107555712A (en) * | 2017-09-04 | 2018-01-09 | 杭州绿球科技有限公司 | A kind of electrolytic bamboo product wastewater treatment equipment |
| CN207159049U (en) * | 2017-09-04 | 2018-03-30 | 杭州绿球科技有限公司 | One kind utilizes light electrolysis, anaerobism and BAF PROCESS FOR TREATMENT bamboo product waste plants |
| CN108083570A (en) * | 2017-12-21 | 2018-05-29 | 浙江创伟竹业开发有限公司 | A kind of bamboo wood heat treatment spent liquor processing method |
| CN109650671A (en) * | 2019-01-24 | 2019-04-19 | 浙江省环境保护科学设计研究院 | A kind of the diversification integrated treatment process and device of high concentration bamboo product waste water |
| CN114230020A (en) * | 2021-11-11 | 2022-03-25 | 四川工商职业技术学院 | Treatment method of bamboo pretreatment wastewater |
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