CN1041799A - Black liquid and China grass degumming liquid processing method - Google Patents
Black liquid and China grass degumming liquid processing method Download PDFInfo
- Publication number
- CN1041799A CN1041799A CN 89105791 CN89105791A CN1041799A CN 1041799 A CN1041799 A CN 1041799A CN 89105791 CN89105791 CN 89105791 CN 89105791 A CN89105791 A CN 89105791A CN 1041799 A CN1041799 A CN 1041799A
- Authority
- CN
- China
- Prior art keywords
- processing method
- fzc
- press filtration
- liquid
- aeration agitation
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000007788 liquid Substances 0.000 title claims abstract description 20
- 238000003672 processing method Methods 0.000 title claims abstract description 8
- 240000008564 Boehmeria nivea Species 0.000 title claims abstract description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 15
- 238000005273 aeration Methods 0.000 claims abstract description 12
- 238000013019 agitation Methods 0.000 claims abstract description 12
- 239000000701 coagulant Substances 0.000 claims abstract description 12
- 238000000034 method Methods 0.000 claims abstract description 11
- 238000001914 filtration Methods 0.000 claims abstract description 10
- 230000008901 benefit Effects 0.000 claims abstract description 9
- 239000000284 extract Substances 0.000 claims abstract description 7
- 235000013379 molasses Nutrition 0.000 claims abstract description 7
- 239000002023 wood Substances 0.000 claims abstract description 7
- 238000007599 discharging Methods 0.000 claims abstract description 6
- 230000003311 flocculating effect Effects 0.000 claims abstract description 6
- 239000006228 supernatant Substances 0.000 claims abstract description 6
- 238000011010 flushing procedure Methods 0.000 claims abstract description 5
- 239000013049 sediment Substances 0.000 claims abstract description 5
- 238000005352 clarification Methods 0.000 claims abstract description 4
- 238000010411 cooking Methods 0.000 claims abstract description 3
- 239000000463 material Substances 0.000 claims abstract description 3
- XMGQYMWWDOXHJM-UHFFFAOYSA-N limonene Chemical compound CC(=C)C1CCC(C)=CC1 XMGQYMWWDOXHJM-UHFFFAOYSA-N 0.000 claims description 10
- 230000015271 coagulation Effects 0.000 claims description 6
- 238000005345 coagulation Methods 0.000 claims description 6
- 239000002253 acid Substances 0.000 claims description 5
- 229940087305 limonene Drugs 0.000 claims description 5
- 235000001510 limonene Nutrition 0.000 claims description 5
- 238000009835 boiling Methods 0.000 claims description 3
- 231100000862 numbness Toxicity 0.000 claims description 2
- 239000012141 concentrate Substances 0.000 claims 1
- 239000012530 fluid Substances 0.000 claims 1
- 238000004042 decolorization Methods 0.000 abstract description 3
- 230000000694 effects Effects 0.000 abstract description 3
- 230000001351 cycling effect Effects 0.000 abstract 1
- 239000000126 substance Substances 0.000 description 4
- 244000025254 Cannabis sativa Species 0.000 description 3
- 235000012766 Cannabis sativa ssp. sativa var. sativa Nutrition 0.000 description 3
- 235000012765 Cannabis sativa ssp. sativa var. spontanea Nutrition 0.000 description 3
- 235000009120 camo Nutrition 0.000 description 3
- 235000005607 chanvre indien Nutrition 0.000 description 3
- 239000011487 hemp Substances 0.000 description 3
- 239000010865 sewage Substances 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 239000003610 charcoal Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000003344 environmental pollutant Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 231100000719 pollutant Toxicity 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 229920002488 Hemicellulose Polymers 0.000 description 1
- 238000003916 acid precipitation Methods 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 239000013043 chemical agent Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 235000021050 feed intake Nutrition 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000010802 sludge Substances 0.000 description 1
Landscapes
- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
A kind of black liquid, the China grass degumming liquid processing method, its treatment step is: (1) wet method drops into the FZC coagulant, after (2) aeration agitation, flocculating setting, adding the HCl acidifying and adjusting pH is below 4, continues aeration agitation, and (3) clarification is after 2～5 hours, the sediment that extracts press filtration is a wood molasses, the discharging supernatant and and press filtration after water send back to together, in order to flushing cooking of pulp material or dilute the dense degumming baths of ramie, add a small amount of FZC coagulant in (4) circular treatment.Advantage of the present invention is that facility is simple, and small investment is handled the water seal cycling and reutilization, thoroughly eradicates the pollution to environment, and promptly have an economic benefit, and treatment effect is good: BOD, COD clearance are 75～90%, and percent of decolourization is more than 98%.
Description
The present invention is that a kind of suitable black liquid is Yu the sewage water treatment method of Limonene hemp retting liquid.
Black liquid is with the Limonene hemp retting liquid is a kind of high density pollution thing waste liquid sewage.Usually adopt the tertiary treatment way of biological treatment+chemical coagulation+charcoal absorption, make pollutant BOD, COD, suspended matter obtain handling more completely, but its treatment facility takes investment greatly, treatment technology is complicated and be difficult to control, it is also big to produce sludge quantity, and power consumption is high, and it is many to add chemical agent.Processing cost is expensive.
Certainly, the condensed combustion of employing method is arranged also usually, extract alkali from black liquor and degumming baths, make sewage obtain handling more completely simultaneously, BOD and COD clearance are all more than 90%, and this method has the treatment facility investment high equally, and big shortcoming consumes energy.
It is simple to the purpose of this invention is to provide a kind of facility, not discharging outward of the water circulation use sealing after the processing, and thoroughly radical cure can extract a large amount of wood molasses again simultaneously and pay product, and the Pollutant Treatment effect is better the pollution of environment.
The objective of the invention is to adopt " economic benefits and social benefits closed circulation facture " to realize that its step is as follows:
1, drop into the FZC coagulant: the amount wet method with 1～8g/l drops into (annotate: the FZC coagulant is applied for patent of invention simultaneously).
2, aeration agitation impels coagulant evenly to disseminate in soiling solution, increases to contact with interparticle, and can make organic and inorganic reducing substances be subjected to oxidation.After the aeration agitation 0.5～2 hour, flocculating setting 0.5～1 hour, adding HCL again, to transfer to PH be below 4, continued aeration agitation 0.5～1.5 hour, stops aeration agitation.The coagulant that add this moment all discharges from flco, is dissolved in the water, and wooden and hemicellulose acid precipitation.
3, clarification is after 2～5 hours, and the sediment that extracts press filtration is a wood molasses, discharges supernatant, and sends back to together with the water after the press filtration, in order to flushing cooking of pulp material or Xi Shi Limonene numbness concentrated degumming liquid, promptly recycles.
4, in circular treatment, adding FZC coagulation dosage is 0.2～1.5g/l.
The present invention compares with the tertiary treatment method of prior biological processing+chemical coagulation+charcoal absorption has following advantage:
1, because of being that closed circulation is handled, the acid water that carries coagulant sends back to utilization again in the production, and the pollution of waste liquid to environment thoroughly do not eradicated in discharging outward.
Need add HCL when 2, handling, the acidifying amount only equates with existing tertiary treatment pH value adjustment amount, so it is low to have a cost, technology is simple, manageable advantage.
3, after the acid water that carries coagulant was got back to and re-used in the production, the black liquid that flows into regulating reservoir was Yu Limonene hemp retting liquid pH value is generally 5～8, and organic natural degradation power is strong, and its percent of decolourization can be reached more than 98%.
4, handle the acid water that carries coagulant in back, when adjusting pH value 7～8, the supernatant of secondary flocculating setting, BOD, COD clearance all can reach 75～90%, and percent of decolourization still is that water quality is as clear as crystal more than 98%, no suspended substance, its treatment effect is preferable.
5, handle in the process of water, extracted a large amount of wood molasses and paid product, the funds that in filling up processing, consumed, also can obtain certain economic benefits like this.
6, settling of floccus is not influenced by temperature, and the flco dewatering is good.
The present invention is as follows to the best implementation method of black liquid:
1, is 4g/l by FZC coagulation dosage, carries out wet method and feed intake.
2, aeration agitation is after 1 hour, and flocculating setting 0.5 hour adds HCL and adjusts PH=3.5, continues aeration agitation 1 hour.
3, clarification is after 3 hours, and the sediment that extracts press filtration is a wood molasses, the discharging supernatant, and the water after press filtration sends back to, the slurry in order to after the flushing boiling promptly recycles.
4, after the processing water flushing boiling with acid year coagulant, slurry forms new black liquor, and the FZC additional amount is 0.3 during processing.
Claims (5)
1, a kind of black liquid and China grass degumming liquid processing method is characterized in that adopting economic benefits and social benefits closed circulation facture, and its step is as follows:
A, wet method drop into coagulant FZC.
B, aeration agitation, flocculating setting is acidified with acid, and continues aeration agitation again.
C, the press filtration sediment that extracts after the clarification are wood molasses, the discharging supernatant and and press filtration after water liquid send back to together, in order to the pulpwood of flushing boiling or dilute the China grass degumming concentrate, promptly recycle.
Add the FZC coagulant in D, the circular treatment at every turn.
2, according to the processing method of claim 1, it is characterized in that it is 1～8g/l that processing for the first time adds FZC coagulation dosage, wet method drops in the treatment fluid.
3, according to the processing method of claim 1, it is characterized in that aeration agitation after 0.5～2 hour, flocculating setting 0.5～1 hour adds the HCL acidifying, and adjusts below the PH=4, continues aeration agitation 0.5～1.5 hour.
4, according to the processing method of claim 1, it is characterized in that clarifying 2～5 hours after, the sediment that extracts press filtration is a wood molasses, the discharging supernatant and and press filtration after water send back to together, in order to wash cooking of pulp material or Xi Shi Limonene numbness concentrated degumming liquid.
5, according to the processing method of claim 1, it is characterized in that adding in the circular treatment FZC coagulation dosage is 0.2～1.5g/l.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 89105791 CN1041799A (en) | 1989-11-18 | 1989-11-18 | Black liquid and China grass degumming liquid processing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 89105791 CN1041799A (en) | 1989-11-18 | 1989-11-18 | Black liquid and China grass degumming liquid processing method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1041799A true CN1041799A (en) | 1990-05-02 |
Family
ID=4856439
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 89105791 Pending CN1041799A (en) | 1989-11-18 | 1989-11-18 | Black liquid and China grass degumming liquid processing method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1041799A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100366548C (en) * | 2006-03-09 | 2008-02-06 | 湖北大学 | A kind of treatment reuse method of ramie degumming wastewater |
| CN106673365A (en) * | 2016-12-30 | 2017-05-17 | 四川师范大学 | Ramie production wastewater treatment method |
-
1989
- 1989-11-18 CN CN 89105791 patent/CN1041799A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100366548C (en) * | 2006-03-09 | 2008-02-06 | 湖北大学 | A kind of treatment reuse method of ramie degumming wastewater |
| CN106673365A (en) * | 2016-12-30 | 2017-05-17 | 四川师范大学 | Ramie production wastewater treatment method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103864266B (en) | A method for recycling waste paper and papermaking wastewater and sludge | |
| CN101708916B (en) | Closed circulation and zero emission processes for papermaking wastewater | |
| CA1256603A (en) | Methane fermentation process for treating evaporator condensate from pulp making system | |
| CN101037287A (en) | Method of resource protection, decrement treatment of town sewage and sludge | |
| AU2003258548A1 (en) | Production of a fermentation product | |
| CN111410362A (en) | Method for treating coffee primary processing wastewater | |
| CN101439920A (en) | Green treatment process for activated sludge | |
| Barford et al. | Anaerobic digestion of high‐strength cheese whey utilizing semicontinuous digesters and chemical flocculant addition | |
| CN109019830B (en) | Activated sludge process sludge reduction and floc structure regulation and control method | |
| CN103159372B (en) | Treatment method for wheat straw pulping black liquor | |
| CN103043789A (en) | Anaerobic reactor and treatment method of cotton pulp production waste water | |
| CN101519853B (en) | Treatment method of alkaline pulping black liquor in papermaking process | |
| DE19800224C1 (en) | Anaerobic treatment of waste material with bacteria | |
| CN1041799A (en) | Black liquid and China grass degumming liquid processing method | |
| CN1772660A (en) | Treating process of high concentration papermaking effluent | |
| CN115124124A (en) | Black water coagulation anaerobic fermentation method and system based on plant flocculant | |
| CN100552131C (en) | A kind of treatment method of straw pulp papermaking black liquor by alkaline method | |
| CN107265798A (en) | A kind of method for sludge treatment | |
| CN108017196A (en) | A kind of wastewater deep treatment process of acid out oxidizing, flocculating precipitation | |
| CN103771632B (en) | A kind of preprocess method of cellulose alcoholic fermentation waste liquid | |
| CN213569890U (en) | Thermal power plant circulating water blowdown water full membrane method zero release processing system | |
| CN1270982C (en) | Process for comprensive treating waste water of paper making by grass pulp | |
| CN101585611B (en) | Industrial wastewater and municipal wastewater treatment method | |
| CN204369720U (en) | Culturing wastewater processing system | |
| CN1144781A (en) | Harnessing method for papermaking waste water |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C01 | Deemed withdrawal of patent application (patent law 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |