CN104230108A - Method for treating glass fiber production wastewater - Google Patents
Method for treating glass fiber production wastewater Download PDFInfo
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- CN104230108A CN104230108A CN201410477354.5A CN201410477354A CN104230108A CN 104230108 A CN104230108 A CN 104230108A CN 201410477354 A CN201410477354 A CN 201410477354A CN 104230108 A CN104230108 A CN 104230108A
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- wastewater
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- glass fibre
- fiber production
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Abstract
The invention relates to a method for treating glass fiber production wastewater, and belongs to the field of a wastewater treatment method. The method for treating the glass fiber production wastewater comprises the steps as follows: impurities in the glass fiber production wastewater are removed through a grid; wastewater flows automatically and enters a coagulating basin; the PH value of the wastewater is regulated in a range of 7-8; the wastewater is added with a flocculating agent and stirred for reaction and precipitation; drainage enters an SBR (styrene butadiene rubber) reactor for biochemical reaction; and reaction effluent is absorbed and filtered by activated carbon to obtain drainage which is well treated drainage up to standard. According to the method for treating the glass fiber production wastewater, a coagulation/SBR/activated carbon adsorption treatment technology is adopted to treat and degrade the wastewater by stages, so that the glass fiber wastewater is treated to reach the first-grade emission standard, and the method has the characteristics of good treatment effect, simplicity in operation, low cost and the like.
Description
Technical field
The present invention relates to a kind for the treatment of process of glass fibre factory effluent, belong to method of wastewater treatment field.
Background technology
Pollution substance in glass fibre factory production waste water is mainly used for improving " treating compound " component and fine glass fibre etc. the suspended substance of liquid to glass fibre wetting property.Treating compound main component is: epoxy emulsion, Polyurethane lactic acid, lubricant and static inhibitor, various coupling agents etc., and major part is the macromolecule organic matter that a little thermostability is high, be insoluble in water in addition to the solvents.First adopt effective means to remove suspended matter for this type of sewage, but due to organic polymer particulate matter light specific gravity, particle is thin, precipitation is slow, not only settling tank volume loading rate ability is little to adopt the precipitator method, and required chemical feeding quantity is large.And general coagulating sedimentation or the treatment effect of coagulation air-float to it undesirable.Therefore, study the treatment process being applicable to glass fibre factory effluent that a kind for the treatment of effect is good, operation is simple and cost is low and there is very high application prospect.
Summary of the invention
The present invention aims to provide the treatment process being applicable to glass fibre factory effluent that a kind for the treatment of effect is good, operation is simple and cost is low.
The treatment process of glass fibre factory effluent of the present invention, comprises the following steps:
Glass fibre factory effluent is entered in coagulation basin by the gravity flow of grid removing impurity, regulate waste water pH value to 7-8, add flocculation agent stirring reaction, precipitation, draining enters sbr reactor device and carries out biochemical reaction, and reaction water outlet obtains draining and is processed good draining up to standard after charcoal absorption is filtered.
Preferably, flocculation agent of the present invention is cationic polyacrylamide and polymerize aluminum chloride mixture, and consumption is respectively 2mg/L, 20mg/L.
Preferred, coagulation basin hydraulic detention time of the present invention is 1.5h, and sbr reactor device hydraulic detention time is 12h, and living and receiving charcoal absorption filtering pool hydraulic detention time is 20min.
In treatment process of the present invention, coagulation is the most basic in wastewater treatment, also be very important treating processes, according to waste water, there is higher colloidal stability and the feature of discharge inequality, need pre-treatment be carried out to this waste water or homogenize, to avoid bringing larger impact to follow-up biochemical treatment.Show through a large amount of tests, for the coagulating sedimentation of glass fibre factory effluent, be used alone macromolecule organic flocculating agent effect bad, and it is better than negatively charged ion organic floculant effect with positively charged ion organic floculant during inorganic coagulant compound use, the flocs unit body produced when cationic polyacrylamide and polymerize aluminum chloride compound use is large and structure is closely knit, easily be separated with water body, treatment effect is significantly improved, polymerize aluminum chloride dosage is also reduced, the optimal ph of cationic polyacrylamide and polymerize aluminum chloride compound use is 7.5, its optimum proportioning consumption is 2mg/L+20mg/L.
Glass fiber waste water is after coagulating treatment, and the conditions such as pH value, influent concentration, temperature are all more stable, and therefore hydraulic detention time is the major influence factors of sbr reactor device processing efficiency.Hydraulic detention time depends primarily on the character of waste water, and its biological degradation complexity is different, and required time is also just different.The water quality more complicated of glass fiber waste water, the time needed for organic various bond rupture is different.Show through a large amount of tests, go out as HRT<12h, COD clearance increases sharply with the increase of HRT, but change is little as HRT>15h, even if the clearance increasing hydraulic detention time COD by a relatively large margin improves also not obvious, if residence time <10h decontamination effect improving is poor, at this moment due to the acidication stage mainly larger molecular organics under the effect of bacterium extracellular enzyme, resolve into small molecules organic pollutant, pollutent just there occurs change in form, and change is quantitatively little.Mixed economy factor, the hydraulic detention time of oxygen-aerobic reactor of holding concurrently should control at 12h, and wherein hold concurrently oxygen, aerobic each 6h, and now COD clearance is 70.5%.
After coagulation and biochemical treatment, first grade discharging index be reached and also must carry out aftertreatment further.Present method adopts charcoal absorption filtration treatment, and only considers that the residence time i.e. adsorption time are on the impact of COD clearance.A large number of experiments show that, under the different residence time, the gac aftertreatment COD clearance of waste water is all more than 60%.During residence time 20min, COD clearance is up to more than 71.9%.Because gac belongs to class graphite mass, be the modification of microcrystalline carbon, the carbon atom on plane of crystal is in different electronic level states from body phase carbon atom, and gac and various material have chemistry and physisorption each other.In adsorption process, there is solute by the mass transfer of solvent to solid adsorbent surfaces, impellent can be solute hydrophobic characteristic or solute to the affinity of solid surface, or both all exist.Tensio-active agent is the organic compound with hydrophobic grouping and hydrophilic radical.Organism hydrophobic grouping is easily adsorbed near solid surface.Suspended substance in bio-reactor water outlet can not only be removed by gac aftertreatment, and also has stronger removal ability to residual soluble organic fraction.
The treatment process of glass fiber waste water of the present invention, adopt coagulation+SBR+ charcoal absorption treatment process, stage by stage process degraded is carried out to waste water, thus reaches the qualified discharge to glass fiber waste water, present method have treatment effect good, run the features such as simple and cost is low.
Embodiment
Embodiment one:
Glass fibre factory effluent is entered in coagulation basin by the gravity flow of grid removing impurity, regulate waste water pH value to 7-8, add cationic polyacrylamide (consumption is 2mg/L) and polymerize aluminum chloride (consumption is 20mg/L) mixture, after stirring reaction, precipitation 1.5h, draining enters sbr reactor device and carries out biochemical reaction 12h, and reaction water outlet obtains draining and is processed good draining up to standard after charcoal absorption filtration 20min.
Embodiment two: treatment effect
Use the treatment process of the treatment process of glass fiber waste water of the present invention, process the waste water of certain glass fibre factory, treatment effect as shown in Table-1.
From table-1, treatment process of the present invention, reach more than 95.4% to COD clearance, waste water reaches first discharge standard completely.
Claims (3)
1. the treatment process of glass fibre factory effluent, comprises the following steps:
Glass fibre factory effluent is entered in coagulation basin by the gravity flow of grid removing impurity, regulate waste water pH value to 7-8, add flocculation agent stirring reaction, precipitation, draining enters sbr reactor device and carries out biochemical reaction, and reaction water outlet obtains draining and is processed good draining up to standard after charcoal absorption is filtered.
2. the treatment process of glass fibre factory effluent as claimed in claim 1, it is characterized in that described flocculation agent is cationic polyacrylamide and polymerize aluminum chloride mixture, consumption is respectively 2mg/L, 20mg/L.
3. the treatment process of glass fibre factory effluent as claimed in claim 1, it is characterized in that described coagulation basin hydraulic detention time is 1.5h, sbr reactor device hydraulic detention time is 12h, and living and receiving charcoal absorption filtering pool hydraulic detention time is 20min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410477354.5A CN104230108A (en) | 2014-09-18 | 2014-09-18 | Method for treating glass fiber production wastewater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410477354.5A CN104230108A (en) | 2014-09-18 | 2014-09-18 | Method for treating glass fiber production wastewater |
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| Publication Number | Publication Date |
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| CN104230108A true CN104230108A (en) | 2014-12-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201410477354.5A Pending CN104230108A (en) | 2014-09-18 | 2014-09-18 | Method for treating glass fiber production wastewater |
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| CN (1) | CN104230108A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111423054A (en) * | 2020-03-16 | 2020-07-17 | 吴竹林 | Novel glass fiber wastewater treatment process |
| CN111977911A (en) * | 2020-08-28 | 2020-11-24 | 贵州中车绿色环保有限公司 | Method for treating leachate wastewater in electrolytic aluminum slag yard |
| CN113697915A (en) * | 2021-08-30 | 2021-11-26 | 重庆国际复合材料股份有限公司 | Treatment method of treating compound waste liquid for glass fiber |
-
2014
- 2014-09-18 CN CN201410477354.5A patent/CN104230108A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111423054A (en) * | 2020-03-16 | 2020-07-17 | 吴竹林 | Novel glass fiber wastewater treatment process |
| CN111977911A (en) * | 2020-08-28 | 2020-11-24 | 贵州中车绿色环保有限公司 | Method for treating leachate wastewater in electrolytic aluminum slag yard |
| CN113697915A (en) * | 2021-08-30 | 2021-11-26 | 重庆国际复合材料股份有限公司 | Treatment method of treating compound waste liquid for glass fiber |
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Legal Events
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| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20141224 |