CN105036429B - Papermaking wastewater treatment method - Google Patents
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- CN105036429B CN105036429B CN201510456628.7A CN201510456628A CN105036429B CN 105036429 B CN105036429 B CN 105036429B CN 201510456628 A CN201510456628 A CN 201510456628A CN 105036429 B CN105036429 B CN 105036429B
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- 238000004065 wastewater treatment Methods 0.000 title abstract 4
- 239000002351 wastewater Substances 0.000 claims abstract description 48
- -1 polyoxyethylene Polymers 0.000 claims abstract description 26
- 150000002009 diols Chemical class 0.000 claims abstract description 18
- 239000007788 liquid Substances 0.000 claims abstract description 18
- 229920001451 polypropylene glycol Polymers 0.000 claims abstract description 18
- 238000003756 stirring Methods 0.000 claims abstract description 18
- 238000004659 sterilization and disinfection Methods 0.000 claims abstract description 17
- 239000012535 impurity Substances 0.000 claims abstract description 12
- 229920003171 Poly (ethylene oxide) Polymers 0.000 claims abstract description 9
- 229920002472 Starch Polymers 0.000 claims abstract description 9
- 239000000440 bentonite Substances 0.000 claims abstract description 9
- 229910000278 bentonite Inorganic materials 0.000 claims abstract description 9
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 claims abstract description 9
- 235000010408 potassium alginate Nutrition 0.000 claims abstract description 9
- 239000000737 potassium alginate Substances 0.000 claims abstract description 9
- MZYRDLHIWXQJCQ-YZOKENDUSA-L potassium alginate Chemical compound [K+].[K+].O1[C@@H](C([O-])=O)[C@@H](OC)[C@H](O)[C@H](O)[C@@H]1O[C@@H]1[C@@H](C([O-])=O)O[C@@H](O)[C@@H](O)[C@H]1O MZYRDLHIWXQJCQ-YZOKENDUSA-L 0.000 claims abstract description 9
- 239000008107 starch Substances 0.000 claims abstract description 9
- 235000019698 starch Nutrition 0.000 claims abstract description 9
- WXZMFSXDPGVJKK-UHFFFAOYSA-N pentaerythritol Chemical compound OCC(CO)(CO)CO WXZMFSXDPGVJKK-UHFFFAOYSA-N 0.000 claims abstract description 8
- 229920002401 polyacrylamide Polymers 0.000 claims abstract description 6
- 238000000034 method Methods 0.000 claims description 15
- 238000003672 processing method Methods 0.000 claims description 10
- 239000002699 waste material Substances 0.000 claims description 10
- RNHWYOLIEJIAMV-UHFFFAOYSA-N 1-chlorotetradecane Chemical compound CCCCCCCCCCCCCCCl RNHWYOLIEJIAMV-UHFFFAOYSA-N 0.000 claims description 8
- FGKJLKRYENPLQH-UHFFFAOYSA-N alpha-isocaproic acid Natural products CC(C)CCC(O)=O FGKJLKRYENPLQH-UHFFFAOYSA-N 0.000 claims description 8
- 238000006266 etherification reaction Methods 0.000 claims description 8
- XXBDWLFCJWSEKW-UHFFFAOYSA-N dimethylbenzylamine Chemical compound CN(C)CC1=CC=CC=C1 XXBDWLFCJWSEKW-UHFFFAOYSA-N 0.000 claims description 7
- PPSSQRUPSRPZON-UHFFFAOYSA-N nitrobenzene;sodium Chemical compound [Na].[O-][N+](=O)C1=CC=CC=C1 PPSSQRUPSRPZON-UHFFFAOYSA-N 0.000 claims description 7
- 229940059574 pentaerithrityl Drugs 0.000 claims description 7
- 229940051841 polyoxyethylene ether Drugs 0.000 claims description 6
- 229920000056 polyoxyethylene ether Polymers 0.000 claims description 6
- 238000001556 precipitation Methods 0.000 claims description 6
- 230000001954 sterilising effect Effects 0.000 claims description 5
- 239000000126 substance Substances 0.000 claims description 5
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 claims 1
- 125000006182 dimethyl benzyl group Chemical group 0.000 claims 1
- 239000003795 chemical substances by application Substances 0.000 abstract description 5
- 150000002191 fatty alcohols Chemical class 0.000 abstract description 3
- 238000004062 sedimentation Methods 0.000 abstract description 3
- 235000012216 bentonite Nutrition 0.000 abstract description 2
- 238000001914 filtration Methods 0.000 abstract 2
- ROHFNLRQFUQHCH-YFKPBYRVSA-N L-leucine Chemical compound CC(C)C[C@H](N)C(O)=O ROHFNLRQFUQHCH-YFKPBYRVSA-N 0.000 abstract 1
- 150000003973 alkyl amines Chemical class 0.000 abstract 1
- SFBHPFQSSDCYSL-UHFFFAOYSA-N n,n-dimethyltetradecan-1-amine Chemical compound CCCCCCCCCCCCCCN(C)C SFBHPFQSSDCYSL-UHFFFAOYSA-N 0.000 abstract 1
- OMNKZBIFPJNNIO-UHFFFAOYSA-N n-(2-methyl-4-oxopentan-2-yl)prop-2-enamide Chemical compound CC(=O)CC(C)(C)NC(=O)C=C OMNKZBIFPJNNIO-UHFFFAOYSA-N 0.000 abstract 1
- 239000013049 sediment Substances 0.000 abstract 1
- LJRGBERXYNQPJI-UHFFFAOYSA-M sodium;3-nitrobenzenesulfonate Chemical compound [Na+].[O-][N+](=O)C1=CC=CC(S([O-])(=O)=O)=C1 LJRGBERXYNQPJI-UHFFFAOYSA-M 0.000 abstract 1
- 229910001385 heavy metal Inorganic materials 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 150000002500 ions Chemical class 0.000 description 5
- HRPVXLWXLXDGHG-UHFFFAOYSA-N Acrylamide Chemical compound NC(=O)C=C HRPVXLWXLXDGHG-UHFFFAOYSA-N 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 239000001913 cellulose Substances 0.000 description 3
- 229920002678 cellulose Polymers 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 230000002079 cooperative effect Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- QQGISFDJEJMKIL-JAIQZWGSSA-N (5z)-5-[[3-(hydroxymethyl)thiophen-2-yl]methylidene]-10-methoxy-2,2,4-trimethyl-1h-chromeno[3,4-f]quinolin-9-ol Chemical group C1=CC=2NC(C)(C)C=C(C)C=2C2=C1C=1C(OC)=C(O)C=CC=1O\C2=C/C=1SC=CC=1CO QQGISFDJEJMKIL-JAIQZWGSSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 238000000354 decomposition reaction Methods 0.000 description 2
- 238000005189 flocculation Methods 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 244000273256 Phragmites communis Species 0.000 description 1
- 235000014676 Phragmites communis Nutrition 0.000 description 1
- 239000002202 Polyethylene glycol Substances 0.000 description 1
- 229920001131 Pulp (paper) Polymers 0.000 description 1
- QYKIQEUNHZKYBP-UHFFFAOYSA-N Vinyl ether Chemical compound C=COC=C QYKIQEUNHZKYBP-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 150000001335 aliphatic alkanes Chemical class 0.000 description 1
- 125000005233 alkylalcohol group Chemical group 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 125000003368 amide group Chemical group 0.000 description 1
- 150000001412 amines Chemical class 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005868 electrolysis reaction Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 230000016615 flocculation Effects 0.000 description 1
- 125000000524 functional group Chemical group 0.000 description 1
- 231100000206 health hazard Toxicity 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 150000002576 ketones Chemical class 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 239000010893 paper waste Substances 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 229920001223 polyethylene glycol Polymers 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- LIBWRRJGKWQFSD-UHFFFAOYSA-M sodium;2-nitrobenzenesulfonate Chemical compound [Na+].[O-][N+](=O)C1=CC=CC=C1S([O-])(=O)=O LIBWRRJGKWQFSD-UHFFFAOYSA-M 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 238000010025 steaming Methods 0.000 description 1
- 238000003911 water pollution Methods 0.000 description 1
Landscapes
- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
The invention relates to a papermaking wastewater treatment method. The papermaking wastewater treatment method comprises the following steps: (1) enabling papermaking wastewater to pass through a grating at first to filter large-sized impurities in wastewater and then to flow into an adjusting sedimentation tank; (2) adding diacetone acrylamide, polyoxyethylene alkyl amine, polyacrylamide and tetradecyl dimethyl ammonium chilride, and leaving to stand after stirring; (3) adding etherified starch, bentonite, potassium alginate and sodium 3-nitrobenzene sulfonate into papermaking wastewater, and leaving to stand after stirring; (4) adding a polyoxypropylene diol I, pentaerythritol, polyoxyethylene fatty alcohol, a polyoxypropylene diol II and alpha-aminoisocaproic acid, leaving to stand after stirring, and carrying out filtering to remove sediments and impurities; (5) feeding filtering clear liquid obtained in the step (4) into an ultraviolet disinfection tank for ultraviolet sterilization and disinfection. The papermaking wastewater treatment method is low in consumption of a treating agent, and particularly suitable for treating high-concentration papermaking wastewater.
Description
Technical field
The present invention relates to the processing method of papermaking wastewater, belong to water treatment field.
Background technology
It is raw material that paper industry uses timber, Caulis et Folium Oryzae, phragmites communiss, rag etc., isolates cellulose through High Temperature High Pressure steaming and decocting,
Make paper pulp.In process of production, the non-cellulose part finally discharged in raw material becomes black liquid.Contain wooden in black liquor
Element, cellulose, VFA etc., heavy metal contaminants, frowziness, contaminative is very strong, can severe contamination water resource, make
Become ecological balance, the sewage handling problem in current paper mill is very serious, and high expensive is so that the paper waste in paper mill
Become one of great water pollution source, it administers further urgent, and the method administered at present has sedimentation, biological decomposition method, electricity
Solution etc., the effect of sedimentation is poor, biological decomposition method is difficult to control to and electrolysis expense is too high it is therefore desirable to a kind of use letter
The administering method single, effect is good, expense is low.
Adsorption-flocculation method is a kind of process for treating waste liquid from paper mill of low cost, but flocculant single at present gives up to papermaking
In liquid, the treatment effect of simultaneous multiple pollutant is not good.In addition contain aluminium element, to human body in existing flocculant more
Health hazard is very big.
Content of the invention
The purpose of the present invention is to overcome the deficiencies in the prior art, provides a kind of processing method of papermaking wastewater, including as follows
Process step:
(1) first by papermaking wastewater through grid, filter out large volume impurity in waste liquid, then papermaking wastewater flow into adjust heavy
Shallow lake pond；
(2) N-[2-(2-methyl-4-oxopentyl) of 10-20 part, 5-10 part polyoxyethylene, 10- are added in papermaking wastewater
16 parts of polyacrylamide, the tetradecyl chloride base dimethyl benzyl ammonium of 5-10 part, after stirring 30-40 minute, standing 15-25 divides
Clock；
(3) add in papermaking wastewater again the etherification starch of 2-6 part, the bentonite of 5-15 part, the potassium alginate of 8-16 part,
The m-nitrobenzene sodium sulfonate of 6-12 part, stands 25-35 minute after stirring 45-60 minute；
(4) Polyoxypropylene diol of 4-10 part, the tetramethylolmethane of 10-20 part, 5-10 are added again in papermaking wastewater
The fatty alcohol-polyoxyethylene ether of part, the Polyoxypropylene diol of 2-8 part, the alpha-amido isocaproic acid of 5-15 part, stirring 60-90 divides
Filter after standing 40-50 minute after clock and remove precipitation and impurity；
(5) cleaner liquid excessively obtaining in step (4) is delivered to and in ultraviolet disinfection pond, carry out ultraviolet-sterilization sterilization；
Step (2), (3), the quality sum of all substances adding in (4) with the ratio of the volume of processed papermaking wastewater are
10mg/l.
Preferably, in step (2), add in papermaking wastewater 15 parts N-[2-(2-methyl-4-oxopentyl), 8 parts of polyethylene glycol oxide alkane
Base amine, 12 parts of polyacrylamide, 7 parts of tetradecyl chloride base dimethyl benzyl ammonium.
Preferably, in step (3), add in papermaking wastewater 4 parts etherification starch, 10 parts of bentonite, 12 parts of sea
Potassium alginate, 8 parts of m-nitrobenzene sodium sulfonate.
Preferably, in step (4), add in papermaking wastewater 6 parts Polyoxypropylene diol, 15 parts of Ji Wusi
Alcohol, 8 parts of fatty alcohol-polyoxyethylene ether, 6 parts of Polyoxypropylene diol, about 10 parts of alpha-amido isocaproic acid.
The method have the advantages that
The paper making waste liquid treatment agent that the present invention provides, can simultaneously work as the effect flocculated, build bridge, adsorb, degrade.Double third
Ketone acrylamide, polyoxyethylene, polyacrylamide, several material of tetradecyl chloride base dimethyl benzyl ammonium compound,
Create cooperative effect, be greatly improved flocculation and bridging action.Polyoxypropylene diol, tetramethylolmethane, poly alkyl alcohol
Oxygen vinyl Ether, Polyoxypropylene diol, several material of alpha-amido isocaproic acid compounding, create cooperative effect, serve good
Good oxide degradation effect.Several material of etherification starch, bentonite, potassium alginate, m-nitrobenzene sodium sulfonate compounds, and creates
Cooperative effect, is greatly improved the adsorption of water treatment agent, and efficiently eliminates the heavy metal ion in waste liquid.Simultaneously
The functional group such as the hydroxyl that has in each component, amido, sulfonic group charge density is high, and breaking is good, good water solubility.The present invention answers
The consumption closing the inorganic agent of process for treating waste liquid from paper mill is little, is directly appended in waste liquid, easy to use, processing cost is low, right
Cod, bod, ss, the clearance height of heavy metal ion, are particularly well-suited to the process of high concentration papermaking wastewater.The place of the present invention simultaneously
Do not contain aluminum in reason agent, secondary pollution will not be produced.
Specific embodiment
Below by embodiment, technical scheme is described in further detail.
Embodiment one:
A kind of processing method of papermaking wastewater, including following process step:
(1) first by papermaking wastewater through grid, filter out large volume impurity in waste liquid, then papermaking wastewater flow into adjust heavy
Shallow lake pond；
(2) add in papermaking wastewater 20 parts N-[2-(2-methyl-4-oxopentyl), 10 parts of polyoxyethylene, 16 parts poly-
Acrylamide, 10 parts of tetradecyl chloride base dimethyl benzyl ammonium, stand 15-25 minute after stirring 30-40 minute；
(3) add in papermaking wastewater again 6 parts etherification starch, 15 parts of bentonite, 16 parts of potassium alginate, 12 parts
M-nitrobenzene sodium sulfonate, stands 25-35 minute after stirring 45-60 minute；
(4) add in papermaking wastewater again 10 parts Polyoxypropylene diol, 20 parts of tetramethylolmethane, 10 parts of fat
Polyoxyethylenated alcohol, 8 parts of Polyoxypropylene diol, 15 parts of alpha-amido isocaproic acid, stand 40- after stirring 60-90 minute
Filter after 50 minutes and remove precipitation and impurity；
(5) cleaner liquid excessively obtaining in step (4) is delivered to and in ultraviolet disinfection pond, carry out ultraviolet-sterilization sterilization；
Step (2), (3), the quality sum of all substances adding in (4) with the ratio of the volume of processed papermaking wastewater are
10mg/l.
After reaction completely, the clearance of cod is the clearance of 99.1%, bod is 99.5%, and the clearance of total suspended matter is
99.2%, the clearance of colourity is 96%, and the clearance of heavy metal ion is 99.4%.
Embodiment two:
A kind of processing method of papermaking wastewater, including following process step:
(1) first by papermaking wastewater through grid, filter out large volume impurity in waste liquid, then papermaking wastewater flow into adjust heavy
Shallow lake pond；
(2) add in papermaking wastewater 10 parts N-[2-(2-methyl-4-oxopentyl), 5 parts of polyoxyethylene, 10 parts poly-
Acrylamide, 5 parts of tetradecyl chloride base dimethyl benzyl ammonium, stand 15-25 minute after stirring 30-40 minute；
(3) add in papermaking wastewater again 2 parts etherification starch, 5 parts of bentonite, 8 parts of potassium alginate, between 6 parts
Nitrobenzene sodium sulfonate, stands 25-35 minute after stirring 45-60 minute；
(4) add in papermaking wastewater again 4 parts Polyoxypropylene diol, 10 parts of tetramethylolmethane, 5 parts of fatty alcohol
Polyoxyethylene ether, 2 parts of Polyoxypropylene diol, 5 parts of alpha-amido isocaproic acid, after stirring 60-90 minute, standing 40-50 divides
Filter after clock and remove precipitation and impurity；
(5) cleaner liquid excessively obtaining in step (4) is delivered to and in ultraviolet disinfection pond, carry out ultraviolet-sterilization sterilization；
Step (2), (3), the quality sum of all substances adding in (4) with the ratio of the volume of processed papermaking wastewater are
10mg/l.
After reaction completely, the clearance of cod is the clearance of 96.4%, bod is 97.5%, and the clearance of total suspended matter is
98.4%, the clearance of colourity is 96%, and the clearance of heavy metal ion is 98.9%.
Embodiment three:
A kind of processing method of papermaking wastewater, including following process step:
(1) first by papermaking wastewater through grid, filter out large volume impurity in waste liquid, then papermaking wastewater flow into adjust heavy
Shallow lake pond；
(2) add in papermaking wastewater 15 parts N-[2-(2-methyl-4-oxopentyl), 8 parts of polyoxyethylene, 12 parts poly-
Acrylamide, 7 parts of tetradecyl chloride base dimethyl benzyl ammonium, stand 15-25 minute after stirring 30-40 minute；
(3) add in papermaking wastewater again 4 parts etherification starch, 10 parts of bentonite, 12 parts of potassium alginate, 8 parts
M-nitrobenzene sodium sulfonate, stands 25-35 minute after stirring 45-60 minute；
(4) add in papermaking wastewater again 6 parts Polyoxypropylene diol, 15 parts of tetramethylolmethane, 8 parts of fatty alcohol
Polyoxyethylene ether, 6 parts of Polyoxypropylene diol, 10 parts of alpha-amido isocaproic acid, stand 40-50 after stirring 60-90 minute
Filter after minute and remove precipitation and impurity；
(5) cleaner liquid excessively obtaining in step (4) is delivered to and in ultraviolet disinfection pond, carry out ultraviolet-sterilization sterilization；
Step (2), (3), the quality sum of all substances adding in (4) with the ratio of the volume of processed papermaking wastewater are
10mg/l.
After reaction completely, the clearance of cod is the clearance of 98.1%, bod is 98.2%, and the clearance of total suspended matter is
99.2%, the clearance of colourity is 96%, and the clearance of heavy metal ion is 99.1%.
Described above has fully disclosed the specific embodiment of the present invention.It is pointed out that being familiar with this field
Any change that technical staff is done to the specific embodiment of the present invention is all without departing from the model of claims of the present invention
Enclose.Correspondingly, the scope of the claim of the present invention is also not limited only to previous embodiment.
Claims (4)
1. a kind of processing method of papermaking wastewater is it is characterised in that include following process step:
(1) first by papermaking wastewater through grid, filter out large volume impurity in waste liquid, then papermaking wastewater flow into adjust precipitation
Pond；
(2) N-[2-(2-methyl-4-oxopentyl) of 10-20 part, 5-10 part polyoxyethylene, 10-16 part are added in papermaking wastewater
Polyacrylamide, the tetradecyl chloride base dimethyl benzyl ammonium of 5-10 part, stirring 30-40 minute after stand 15-25 minute；
(3) etherification starch of 2-6 part, the bentonite of 5-15 part, the potassium alginate of 8-16 part, 6-12 are added again in papermaking wastewater
The m-nitrobenzene sodium sulfonate of part, stands 25-35 minute after stirring 45-60 minute；
(4) Polyoxypropylene diol of 4-10 part, the tetramethylolmethane of 10-20 part, 5-10 part are added again in papermaking wastewater
Fatty alcohol-polyoxyethylene ether, the Polyoxypropylene diol of 2-8 part, the alpha-amido isocaproic acid of 5-15 part, after stirring 60-90 minute
Filter after standing 40-50 minute and remove precipitation and impurity；
(5) cleaner liquid excessively obtaining in step (4) is delivered to and in ultraviolet disinfection pond, carry out ultraviolet-sterilization sterilization；
Step (2), (3), the quality sum of all substances adding in (4) with the ratio of the volume of processed papermaking wastewater are
10mg/l.
2. processing method according to claim 1 is it is characterised in that in step (2), add 15 parts in papermaking wastewater
N-[2-(2-methyl-4-oxopentyl), 8 parts of polyoxyethylene, 12 parts of polyacrylamide, 7 parts of tetradecyl chloride base dimethylbenzyl
Base ammonium.
3. processing method according to claim 1 is it is characterised in that in step (3), add 4 parts in papermaking wastewater
Etherification starch, 10 parts of bentonite, 12 parts of potassium alginate, 8 parts of m-nitrobenzene sodium sulfonate.
4. processing method according to claim 1 is it is characterised in that in step (4), add 6 parts in papermaking wastewater
Polyoxypropylene diol, 15 parts of tetramethylolmethane, 8 parts of fatty alcohol-polyoxyethylene ether, 6 parts of Polyoxypropylene diol,
10 parts of alpha-amido isocaproic acid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510456628.7A CN105036429B (en) | 2015-07-30 | 2015-07-30 | Papermaking wastewater treatment method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510456628.7A CN105036429B (en) | 2015-07-30 | 2015-07-30 | Papermaking wastewater treatment method |
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| Publication Number | Publication Date |
|---|---|
| CN105036429A CN105036429A (en) | 2015-11-11 |
| CN105036429B true CN105036429B (en) | 2017-01-25 |
Family
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510456628.7A Active CN105036429B (en) | 2015-07-30 | 2015-07-30 | Papermaking wastewater treatment method |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112919683A (en) * | 2021-02-07 | 2021-06-08 | 汪波 | Advanced biochemical treatment system for papermaking sewage |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1789159A (en) * | 2005-12-05 | 2006-06-21 | 赵清顺 | Sterilization inhibitor for circulated cooling water treatment |
| EP1950181A1 (en) * | 2007-01-25 | 2008-07-30 | GEO - Ground Engineering Operations Produtos e Solucoes de Engenharia e Geotecnia, Lda | Chemical composition and process for treating geotechnical slurries |
-
2015
- 2015-07-30 CN CN201510456628.7A patent/CN105036429B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1789159A (en) * | 2005-12-05 | 2006-06-21 | 赵清顺 | Sterilization inhibitor for circulated cooling water treatment |
| EP1950181A1 (en) * | 2007-01-25 | 2008-07-30 | GEO - Ground Engineering Operations Produtos e Solucoes de Engenharia e Geotecnia, Lda | Chemical composition and process for treating geotechnical slurries |
Non-Patent Citations (1)
| Title |
|---|
| 表面活性剂在造纸中的应用;谢新良等;《黑龙江造纸》;20030630(第2期);第24-25页 * |
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Inventor after: Xie Yunjun Inventor after: Zhang Xiang Inventor after: Wang Zusheng Inventor after: Zhang Bin Inventor after: Li Wenjing Inventor after: Cao Jingyi Inventor after: Wu Hao Inventor after: Yan Lijie Inventor after: Tu Can Inventor after: Wu Wenwen Inventor before: Li Pinglan |
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Effective date of registration: 20161208 Address after: 518000 Guangdong, Futian District Lotus Street news Road, East Building, information information, No. 2619, block Applicant after: Shenzhen environmental science and Technology Co., Ltd. Address before: The streets of Jiyang city of Shaoxing province Zhejiang 311899 Pavilion Village in Zhuji City Applicant before: Li Pinglan |
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Denomination of invention: Papermaking wastewater treatment method Effective date of registration: 20170719 Granted publication date: 20170125 Pledgee: Shenzhen high tech investment and financing Company limited by guarantee Pledgor: Shenzhen environmental science and Technology Co., Ltd. Registration number: 2017990000659 |
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Date of cancellation: 20190329 Granted publication date: 20170125 Pledgee: Shenzhen high tech investment and financing Company limited by guarantee Pledgor: Shenzhen environmental science and Technology Co., Ltd. Registration number: 2017990000659 |
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Denomination of invention: Papermaking wastewater treatment method Effective date of registration: 20190329 Granted publication date: 20170125 Pledgee: Shenzhen high tech investment and financing Company limited by guarantee Pledgor: Shenzhen environmental science and Technology Co., Ltd. Registration number: 2019990000279 |
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Date of cancellation: 20201023 Granted publication date: 20170125 Pledgee: Shenzhen high tech investment and financing Company limited by guarantee Pledgor: Shenzhen Toyusun Environmental Technology Co.,Ltd. Registration number: 2019990000279 |
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Denomination of invention: A treatment method of papermaking wastewater Effective date of registration: 20201028 Granted publication date: 20170125 Pledgee: Bank of Jiangsu Limited by Share Ltd. Shenzhen branch Pledgor: Shenzhen Toyusun Environmental Technology Co.,Ltd. Registration number: Y2020440020013 |
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Date of cancellation: 20211026 Granted publication date: 20170125 Pledgee: Bank of Jiangsu Limited by Share Ltd. Shenzhen branch Pledgor: Shenzhen Toyusun Environmental Technology Co.,Ltd. Registration number: Y2020440020013 |