CN104528864A - Method for treating dye wastewater by utilizing potassium permanganate modified aerobic granular sludge - Google Patents
Method for treating dye wastewater by utilizing potassium permanganate modified aerobic granular sludge Download PDFInfo
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- CN104528864A CN104528864A CN201410771603.1A CN201410771603A CN104528864A CN 104528864 A CN104528864 A CN 104528864A CN 201410771603 A CN201410771603 A CN 201410771603A CN 104528864 A CN104528864 A CN 104528864A
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- Prior art keywords
- particle mud
- aerobic particle
- dye wastewater
- potassium permanganate
- granular sludge
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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
- C02F1/28—Treatment of water, waste water, or sewage by sorption
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
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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
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
- C02F2101/308—Dyes; Colorants; Fluorescent agents
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/30—Nature of the water, waste water, sewage or sludge to be treated from the textile industry
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Analytical Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Water Treatment By Sorption (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
- Activated Sludge Processes (AREA)
Abstract
The invention discloses a method for treating dye wastewater by utilizing potassium permanganate modified aerobic granular sludge and belongs to the field of dye wastewater treatment and waste reutilization. According to the method disclosed by the invention, waste aerobic granular sludge is taken as a raw material to prepare an absorbent for treating the dye wastewater, so the method has the advantages of use of easily available raw material, convenient operation, good economical performance and high efficiency, and is also a new research on recycle of waste sludge. By using the modified aerobic granular sludge to treat the dye wastewater, the removal rate can reach a quite high level at a proper condition. By taking peacock green simulative dyeing wastewater as a sample, the removal rate is as high as 98.95% underconditions that the temperature is 25+/-1 DEG C, the pH is 7 to 8 and the amount of the added aerobic granular sludge is 0.6g/L. The removal rate is always above 95% under conditions that the pH is 7 to 8 and the amount of the added aerobic granular sludge is 0.6g/L when actual peacock green dye wastewater of which the concentration is 5 to 150 mg/L is treated at normal temperature.
Description
Technical field
The present invention relates to one and utilize potassium permanganate modification aerobic particle mud, prepare the method for dye wastewater adsorbent, belong to dye wastewater treatment and waste reclaimation field.
Background technology
According to statistics, in the sewage that China discharges every year, industrial sewage accounts for 51%, and textile printing and dyeing industry quantity of wastewater effluent accounts for 35% of total discharged volume of industrial waste water, and dyeing waste water has become one of current topmost pollution source of water body of China.The features such as dyeing waste water has complicated component simultaneously, colourity is large, organic poison content is high, water quality and quantity variation is large, biodegradability can differ from are the persistent ailments of sewage treatment area always.The treatment process of traditional dyeing waste water has Physical, chemical method, physico-chemical processes, biochemical process etc., and the most frequently used in Physical be active carbon adsorption.But many, the large mesopores of activated carbon capillary are not enough, wetting ability is strong, limit the internal diffusion of macromole and hydrophobic dye, poor to the decolorizing effect of this kind of material, and regeneration difficulty, cost is high, is generally applied to the lower dye wastewater treatment of concentration or advanced treatment.
Compared with traditional active sludge, it is fast that aerobic particle mud has settling velocity, and sludge concentration is high, the advantage such as the strong and microbe species of biological activity is many, there is larger development potentiality, more and more paid close attention in recent years, also become one of sewage disposal technology be most widely used at present.Aerobic particle mud is the special biopolymer that the throwing out of microorganism dependence self is combined into, surface has a lot of function key, with scanning electron microscopic observation granule sludge surface, often can find many spaces and cave, these spaces and cave are considered to the passage that matrix is transmitted, and gas also can transfer out through this.So there is investigator that sorbent material is made in aerobic particle mud drying, absorption is as Pb
2+, Cu
2+, Cr
2+plasma, adsorption effect is better, and has higher analytic ability.Aerobic, anaerobic grain sludge and sewage work's waste sludge after xanthation to Cu
2+have higher absorption property, maximal absorptive capacity is 142.9mg/g; Calcification aerobic particle mud is to Pb
2+, Cu
2+, Cr
2+adsorptive capacity be respectively 173.3mg/g, 58.39mg/g, 168.9mg/g; Black aerobic particle mud is 52.63mg/gVSS to Victoria Green WPB dye wastewater maximal absorptive capacity, and absorption property is good.The adsorption of dry aerobic particle mud heavy metal ion is verified, and its absorption to waste water from dyestuff is studied less and is in the tentative experiment stage.Simultaneously the decolorizing effect of oxidation style to most of dyestuff such as potassium permanganate is remarkable, and dry aerobic particle mud also has very strong absorption property to waste water from dyestuff, if both advantages can be put together, potassium permanganate modification aerobic particle mud is utilized to make high-efficiency adsorbent, not only raw material be easy to get, cheap, simple to operate, and be the new exploration of dye waste water treatment method, there is very high researching value.
The present invention is for actual malachite green dye waste water, and under normal temperature condition, get the actual dye wastewater 250mL within the scope of 5 ~ 150mg/L, pH is 7.3, and add modified aerobic particle mud 0.6g/L, whip attachment 60min, dyestuff clearance is all more than 95%.Compared with conventional treatment method, there is very large development potentiality.
Summary of the invention
The present invention be directed to current dye wastewater treatment difficulty, existing sorbent material cost is high, absorption and resolve a kind of low cost, high-level efficiency, the easy-operating dye wastewater adsorbent making method of the phenomenon propositions such as difficulty, complex operation, namely makes dye wastewater adsorbent with low cost by potassium permanganate modification aerobic particle mud.Purify dyeing waste water with this sorbent material, reach the object of economical and efficient treatment of dyeing and printing.Granule sludge of the present invention is common aerobic particle mud.
Utilize potassium permanganate modification aerobic particle mud to make the method for dye wastewater adsorbent, comprise following concrete steps:
A, get the aerobic particle mud of certain mass, (volatile suspended solid concentration VSS and total suspended solid concentration SS ratio are 0.75 ~ 0.79) uses washed with de-ionized water 4 ~ 5 times, be centrifugal 1 ~ 3min under the condition of 4500 ~ 5000r/min at rotating speed, then dry 20h in the constant temperature blast drying oven at 100 ~ 120 DEG C, granule sludge water ratio is 1% ~ 10%;
B, by described in a aerobic particle mud cooling, filter out the aerobic particle mud of particle diameter at 0.5 ~ 1.5mm with molecular sieve;
C, add to the aerobic particle mud described in every gram of b the potassium permanganate solution that 10mL concentration is 0.1mol/L, and be placed in the shaking table boiling water bath vibration boiling 30min of 100 DEG C;
D, the aerobic particle mud of cooling described in c, and under the condition of 4500 ~ 5000r/min centrifugal 1 ~ 3min, collect this aerobic particle mud, repeatedly clean to neutrality with deionized water, then be placed in the dry 20h of constant temperature blast drying oven of 100 ~ 120 DEG C, granule sludge water ratio is 1% ~ 10%;
With obtained aerobic particle mud treatment of simulated waste water from dyestuff, measure clearance and the percent of decolourization of waste water from dyestuff before and after process.Adsorptive capacity and clearance are shown in formula (1) (2)
Q
t＝(C
0-C
t)*V/m (1)
W
t＝(C
0-C
t)/C
0(2)
Q in formula
tfor the loading capacity mg/g of t aerobic particle mud; C
0and C
tbe respectively the starting point concentration of dyestuff and the concentration mg/L of t; V is the volume mL of solution; M is the quality mg of sorbent material.
The aerobic particle mud that the present invention uses, not only raw material is easy to get, and belongs to the recycling of resource, is conducive to the Sustainable development of environment.Recycling potassium permanganate in addition modification is used for dye wastewater treatment, more economically efficiently, and simple to operate, being convenient to control, is effective exploration of new adsorbent.
Accompanying drawing explanation
Fig. 1 is the aerobic particle mud microscopy photo that SBR cultivates
Fig. 2 is the impact of different pH on clearance
Fig. 3 is that variable grain mud dosage is on the impact of clearance
Embodiment
Case study on implementation 1
Get the aerobic particle mud of certain mass, by washed with de-ionized water 4 ~ 5 times, be centrifugal 1 ~ 3min under the condition of 4500 ~ 5000r/min, dry 20h in the constant temperature blast drying oven then at 100 ~ 120 DEG C at rotating speed, granule sludge water ratio is 1% ~ 10%; Above-mentioned aerobic particle mud is cooled, filters out the aerobic particle mud of particle diameter at 0.5 ~ 1.5mm with molecular sieve; Add to above-mentioned aerobic particle mud the potassium permanganate solution that 10mL concentration is 0.1mol/L, and be placed in the shaking table boiling water bath vibration boiling 30min of 100 DEG C; Cooling gained aerobic particle mud, and under the condition of 4500 ~ 5000r/min centrifugal 1 ~ 3min, collect this aerobic particle mud, repeatedly clean to neutrality with deionized water, then be placed in the dry 20h of constant temperature blast drying oven of 100 ~ 120 DEG C, granule sludge water ratio is 1% ~ 10%.
By the Victoria Green WPB dye wastewater that above-mentioned aerobic particle mud process starting point concentration is 150mg/L.Concrete steps get the Erlenmeyer flask of 5 500mL for (1), add the Victoria Green WPB dye wastewater of 250mL respectively; (2) be 0.6g/L respectively to adding modified aerobic particle mud amount in the Erlenmeyer flask in step (1); (3) pH in each Erlenmeyer flask is regulated to be 1,3,5,7,9; (4) oscillatory reaction in the constant temperature waters of 25 ± 1 DEG C, until when the dyestuff clearance before and after sampling differs 0.5 ± 0.01, reaction stops.Measure the absorbancy of water sample.Result shows that removal effect is best when initial pH value is 7, and clearance is up to 98.46%, and maximal absorptive capacity is 73.84mg/g, and when pH is 1, the proterties on aerobic particle mud surface has changed, and clearance is only 0.53%.
Case study on implementation 2
Be to be the actual malachite green dye waste water of 50mg/L by the aerobic particle mud concentration for the treatment of after processing with the difference of case study on implementation 1.Concrete steps get the waste water from dyestuff of 1300mL for (1), regulate pH to be 7.3; (2) in the Erlenmeyer flask of 5 500mL, respectively add the above-mentioned waste water of 250mL; (3) respectively to adding 50 in the Erlenmeyer flask in step (2), 100,150,200, the aerobic particle mud of 250mg; (4) oscillatory reaction in the constant temperature waters of 25 ± 1 DEG C, until when the dyestuff clearance before and after sampling differs 0.5 ± 0.01, reaction stops.Measure the absorbancy of water sample.Result shows that treatment effect is best, and clearance reaches 98.95% when the initial dosage of granule sludge is 150mg (0.6g/L), maximal absorptive capacity is 82.47mg/g, and observe discovery, granule sludge dosage is larger, and the time reaching adsorption equilibrium is shorter.
Claims (4)
1. utilize a method for potassium permanganate modification aerobic particle mud dye wastewater treatment, comprise the following steps:
(1) aerobic particle mud is got, by washed with de-ionized water 4 ~ 5 times, centrifugal, dry 20h in the constant temperature blast drying oven then at 100 ~ 120 DEG C;
(2) by the aerobic particle mud cooling in step (1), the aerobic particle mud of particle diameter at 0.5 ~ 1.5mm is filtered out with molecular sieve;
(3) add to the aerobic particle mud in every gram of step (2) potassium permanganate solution that 10mL concentration is 0.1mol/L, and be placed in shaking table boiling water bath vibration boiling 30min;
(4) cooling and collected by centrifugation step (3) in aerobic particle mud, repeatedly clean to neutrality with deionized water, be then placed in the dry 20h of air dry oven of 100 ~ 120 DEG C;
(5) the aerobic particle mud sealing of step (4) is preserved, for subsequent use.
2. a kind of method utilizing potassium permanganate modification aerobic particle mud dye wastewater treatment according to claim 1, it is characterized in that in step (1) and step (4), centrifugal condition is 4500 ~ 5000r/min, centrifugation time is 1 ~ 3min.
3. a kind of method utilizing potassium permanganate modification aerobic particle mud dye wastewater treatment according to claim 1, is characterized in that aerobic particle mud water ratio is 1% ~ 10% after the drying in step (1) and step (4).
4. use the method for the aerobic particle mud dye wastewater treatment prepared by claim 1, it is characterized in that comprising the following steps: under normal temperature, get the waste water from dyestuff of concentration within the scope of 5 ~ 150mg/L; In pH scope 7 ~ 8, aerobic particle mud dosage is oscillatory reaction 60min under 0.6g/L condition.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106902762A (en) * | 2017-03-31 | 2017-06-30 | 济南大学 | A kind of preparation and application of magnetic aerobic particle mud graphene oxide multi-walled carbon nano-tubes compound adsorbent |
| WO2018036300A1 (en) * | 2016-08-25 | 2018-03-01 | 江南大学 | Method for treating and recycling waste slurry in bobbin paper production |
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| JPH091174A (en) * | 1995-06-22 | 1997-01-07 | Kubota Corp | Granular sludge coal, treatment of waste water using same and soil improving method |
| CN101024162A (en) * | 2007-01-09 | 2007-08-29 | 国家环境保护总局华南环境科学研究所 | Organic waste-gas adsorbant and preparing method and use |
| CN101053817A (en) * | 2006-04-12 | 2007-10-17 | 中国科学院生态环境研究中心 | Activated sludge adsorbent for zinc and its alkali preparing method |
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2014
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Patent Citations (3)
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| JPH091174A (en) * | 1995-06-22 | 1997-01-07 | Kubota Corp | Granular sludge coal, treatment of waste water using same and soil improving method |
| CN101053817A (en) * | 2006-04-12 | 2007-10-17 | 中国科学院生态环境研究中心 | Activated sludge adsorbent for zinc and its alkali preparing method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018036300A1 (en) * | 2016-08-25 | 2018-03-01 | 江南大学 | Method for treating and recycling waste slurry in bobbin paper production |
| CN106902762A (en) * | 2017-03-31 | 2017-06-30 | 济南大学 | A kind of preparation and application of magnetic aerobic particle mud graphene oxide multi-walled carbon nano-tubes compound adsorbent |
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