CN102381705B - Method for producing activated carbon by thermally activating coal tar dreg/ sludge fermentation body by using microwaves - Google Patents
Method for producing activated carbon by thermally activating coal tar dreg/ sludge fermentation body by using microwaves Download PDFInfo
- Publication number
- CN102381705B CN102381705B CN 201110211312 CN201110211312A CN102381705B CN 102381705 B CN102381705 B CN 102381705B CN 201110211312 CN201110211312 CN 201110211312 CN 201110211312 A CN201110211312 A CN 201110211312A CN 102381705 B CN102381705 B CN 102381705B
- Authority
- CN
- China
- Prior art keywords
- coal
- tar
- microwave
- fermentation
- sludge
- 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.)
- Active
Links
Abstract
The invention discloses a method for producing activated carbon by thermally activating a coal tar dreg/sludge mixed fermentation body by using microwaves. The method comprises the steps of: firstly crushing and grinding coal tar dreg into more than 200 meshes, then, mixing the ground coal tar dreg with sludge, and performing aerobic fermentation for 10-20 days; then, adding zinc chloride serving as an activator into the mixed fermentation body, and infiltrating for 12-24h at 70-80 DEG C, wherein the added zinc chloride is 0.5-4 times more than the mixed fermentation body in mass; and finally, carbonizing and activating for 30-120min in a microwave carbonization furnace under a N2 protection condition to obtain coal tar dreg/sludge mixed activated carbon, washing with water till a neutral condition is achieved, and drying to obtain a product disclosed by the invention. The method disclosed by the invention has the advantages of simplicity and convenience for operation, easiness for control, low cost, high product synthesis rate and favorable product performance, and can be widely applied to industrial wastewater treatment, refractory wastewater treatment, sound insulation, noise reduction, deodorization, oil absorption, lipid suction and other industries.
Description
Technical field
The present invention relates to a kind of microwave thermal activated coal coke tar refuse mixing sludge production process of active carbon, belong to the technical field of environmental friendliness gac in the Chemicals.
Background technology
Coal-based because it has the advantage of high-carbon content and low price, be the important source material of preparation absorbent charcoal material, utilization carbon resource wherein is prepared into activated carbon application with it a lot of examples in environmental protection industry.Coal-tar residue is natural to have cellular structure, characteristics that specific surface area is bigger, and contains a large amount of unburnt carbon.Coal-tar residue is carried out the development and use research of resource utilization and also locate the primary stage at home, particularly with the raw materials for production of coal-tar residue as gac.Therefore, utilize the valuable carbon resource in the coal-tar residue, also can eliminate ambient water, the gas pollution problem that slag brings in the time of preparation low cost active charcoal, realize society, environment, economy benefit in many ways.
Mud is the product after the sewage disposal, be a kind of by organic relic, bacterium thalline, inorganic particle, colloid, etc. the extremely complicated heterogeneous body formed.The main characteristic of mud is that water ratio can be up to more than 99%, and the organic content height is degenerated smellyly easily, and particle is thin, proportion is less, it is gluey liquid to be.It is the concentrated thing between liquid and solid, can transport with pump, but it is difficult to carry out solid-liquid separation by sedimentation.Or long-term ponding, hygrophilous vegetation growth, organic accumulation obviously, reductive action is strong, tool gley horizon or have the soil marsh mud of peat bed concurrently.
Aerobic high-heat fermentation is all ideal method of a kind of economic benefit and ecological benefits.The aerobic high-heat fermentation is fast to the organism decomposition, degraded is thorough, fermentation is even; The leavening temperature height, generally at 35-65 ℃, high reaches more than 70 ℃; Dewatering speed is fast, dehydration rate is high, fermentation period is short, general thermophilic fermentation through about 15 days, and water ratio namely is down to 40-50% from 70-80%; Killing pathogenic bacteria, parasite (ovum) and weed seed and good deodorization effect, but the suitable excrement material water ratio of starting fermentation is 55%-65%.In the process of microbial fermentation auxiliary agent material handling, temperature can reach more than 70 degrees centigrade and lasting several hrs, can effectively eliminate pig hammer germ virus, microorganism breeds and produces a large amount of special efficacy metabolic substds in a large number in the process of fermentation, as microbiotic, hormone etc., microbiotic can make and make the propagation that fertilizer obviously suppresses the soil-borne disease bacterium, improves the crop disease-resistant ability.
Microwave heating has improved the adsorptive power of gac, microwave power and irradiation time are the key factors that determines the modified activated carbon absorption property, microwave activation can be to pore texture and the microstructure change control to gac, at present, the research of the coal-based material preparation gac of microwave activation is comparative maturity, especially for the cheap coal mass active carbon of preparation, effect highly significant.This method activation raw material active high, required soak time is shorter, and the micropore size distribution uniform makes the steady quality of gac, and specific surface area is higher, increases micropore and distributes, and can increase the Application of Brand Active Carbon scope.The microorganism of occurring in nature energy degradation of hydrocarbon has the hundreds of kind, mostly is bacterium, yeast and fungi.Degraded is to be finished by enzyme and enzyme system that they produce.Filter out advantage fungi 3 strains of degraded oil in the contaminated soil indigenous microorganism: little Ke Yinhan (Cunninghamella sp.), Mucor (Mucor sp.) and aspergillus (Aspergillus sp.); Bacterium 2 strains: genus bacillus (Bacillus sp.) and moving glue bacillus (Zoogloea sp.).Because coal-tar residue often is in alkalescence, be alkali when dissolving for the coal microorganism according to the alkali dissolution mechanism of microorganism and coal material effect, can play katalysis.Some microorganisms such as fungi, actinomycetes and unicellular mushroom etc. can produce this type of catalyzer between incubation period again.The nitrogenous alkaline matter that produces in reaction is that substratum or medium pH value increase, thus the dissolving of catalysis coal material.And different types of microorganisms is also also different with quantity because of the alkaline substance kind that the difference of dissolving the coal ability produces.
The feature of the high-carbon content of comprehensive coal-tar residue and mud and the high efficiency of microwave activation.At first coal-tar residue and mud are crushed to below 200 orders, then coal-tar residue and active sludge are mixed high-temperature aerobic fermentation by a certain percentage, in mixture, add activator zinc chloride and certain water gaging, fully mix, with the raw material sample send in the microwave oven soak a few hours after, then under logical nitrogen situation, under the power of 600W-2000W, activate 5min-30min, in the reactivation process wherein except the C element other elements with H
2O, NO, NO
2Discharge the empty structure of formation Deng the small molecules form, in addition because the dehydrogenation of zinc chloride can suppress the generation of tar, and it mainly plays dehydrogenation, reductive action, simultaneously because zinc chloride just forms melt in the time of 239 ℃, it passes through in inside, duct, can increase pore passage structure.At last the sample behind the microwave activation is washed till neutral oven dry through deionized water and namely gets the gac sample.
A certain proportion of mud will be mixed in the coal-tar residue, not only can be used as binding agent to strengthen mixture forming ability and physical strength, also can play benefit carbon simultaneously, regulate pore size distribution structure and the surface area feature of gac, wherein with coal-tar residue as the microbial nutrition material, under aerobic condition, through fermentation macromole difficult degradation carbonaceous organic material wherein is converted into the carbonaceous organic material that easily utilizes than small molecules, thereby the carbon resource that takes full advantage of in these wastes is made low cost, the gac of applied range, high-efficiency adsorbent and the catalyzer of acquisition heavy demand in environmental protection and Chemical Manufacture, owing to contain sludge components compositions such as silicon and aluminium in the mud, can form certain carbon simultaneously, silicon, the silica gel composite absorbent of aluminium coexistence.The characteristics of this method are to be mainly in the coal-tar residue naphthenic hydrocarbon, in the process of cracking, be conducive to generate aromatic hydrocarbons, contain the many raw material aromatics yield height in the process of cracking of naphthenic hydrocarbon, and can form layered framework, increase the specific surface area of gac, the aperture is mainly middle macroporous structure, mud in the research of activation preparation gac main cash at the bottom of the yield, pore size distribution is mainly microvoid structure, both are mixed with gac not only can improve yield, and can prepare little, in, the activated carbon product that is evenly distributed of macroporous structure, increase it and utilize scope.Because the adding of mud increases this mechanical performance of products, solve the environmental safety problem simultaneously, turned waste into wealth, turned harm into good the recycle resource.
Disclose a kind of manufacture method of granulated active carbon among the Chinese patent CN 1634761, may further comprise the steps successively: the shell of particle or moulding is carried out charing under 400～500 ℃ of temperature, carbonization time is 3～16 hours; Carry out first, second time activation respectively under the atmosphere of water vapor and overheated steam successively, activation temperature is 400～900 ℃ for the first time, and the time of activation is 6～16 hours, and activation temperature is 800～1200 ℃ for the second time, and the time of activation is 2～10 hours; The activated particles charcoal carries out pickling, and the acid that pickling is used is hydrochloric acid, nitric acid or phosphoric acid, and acid concentration is 0.1～20wt%, and pickling temperature is 50～120 ℃, and the pickling time is 0.2～16 hour; Particle charcoal after the pickling to neutral, obtains the finished product gac after the drying screening with deionized water wash then.Advantage of the present invention is that the gac that obtains has higher specific surface and higher intensity simultaneously, is particularly suitable as the carrier of loaded catalyst.
The manufacture method of gac and the manufacture method of a kind of gac of gac are disclosed in the Chinese patent 1749158, its feature is made of following operation: with noncaking coal as raw material, and this raw material pulverizing become particle diameter 150 μ m or following, wherein at least 80 weight % or above particle diameter are 75 μ m or following pulverizing process; To the crushed products mix asphalt that is obtained by this pulverizing process and the mixed processes that stirs; Make the mixture that obtained by this mixed processes in the molding procedure of pressurized conditions compacted under; After will being heated to 200-500 ℃ by the moulding product that this molding procedure obtains, in atmosphere, once cooling, then, reheat the destructive distillation operation to 500-750 ℃; And the activation procedure that makes the destructive distillation product activation that is obtained by this destructive distillation operation.
Disclosing a kind of refinery coke among the Chinese patent CN 101028923, to prepare the method for super-activated carbon a kind of be the method for feedstock production super-activated carbon with the refinery coke.Refinery coke is crushed to the 10-200 order before will forging, at first the speed with 5～25 ℃/min is warming up to certain temperature under oxygenous atmosphere, carry out pre-oxidation treatment, the volatile substances oxidation is burnt loses, form preoxidation Jiao with certain porosity simultaneously, then preoxidation Jiao is mixed by the certain mass ratio with alkali metal hydroxide, rise to certain temperature and activate under inert atmosphere, cooling obtains the super-activated carbon product by washing, drying.
Summary of the invention
The purpose of this invention is to provide a kind of microwave thermal activated coal coke tar refuse/mud mixed fermentation body production process of active carbon.
Technical scheme of the present invention is: a kind of microwave thermal activated coal coke tar refuse/sludge fermentation mixture feedstock production process of active carbon, it is at first with coal-tar residue fragmentation, levigate to more than 200 orders, after itself and mud were mixed aerobe fermentation 10-20 days, its quality of adding 0.5-4 doubly gets zinc chloride and makes activator in the mixed fermentation body then, the 12-24h that infiltrates under 70-80 ℃ of condition is placed on N at last
2Charcoal activation 30-120min obtains coal-tar residue/mud mixed active charcoal in the microwave charring furnace under the protective condition, finally by be washed to neutral back dry product of the present invention.
Concrete processing step is:
A, coal-tar residue pulverizing and jevigating: through crusher in crushing by pulverizer be ground to 200 orders below stand-by earlier coal-tar residue;
B, mixed coal tar slag and sludge fermentation: will pulverize stand-by coal-tar residue and contain organic abundant mud mixing according to coal-tar residue quality: sludge quality=0.5:1-1:1, regulating its mixture water ratio is 50%-70%, C:N 〉=20:1, as the pH of mixture not under the interval condition at 5-8, regulating pH with the sodium hydroxide solution of the phosphoric acid of 5%-20%, 1-5moL/L is 5-8; According to mixture, bacterium volume ratio be=10:1 inserts the liquid bacterial strain, keeping temperature is 30 ℃ of-65 ℃ of following high-temperature aerobic fermentation 10-20 days;
C, infiltration mixed fermentation body: be that 1:1-1:2 mixes by the mass ratio of fermentation body, activator zinc chloride with the mixed fermentation body behind aerobic fermentation, adding certain water gaging becomes muddy fully to mix, place microwave oven to regulate temperature at 70 ℃-80 ℃ infiltration 6h-12h, it is thick that its water ratio after immersion is that 30%-40% presents, and places the charcoal activated reactor to be activated then;
D, the hot charing pre-treatment of low power microwave: will soak microwave oven under the protective condition that pretreated thick mixture places nitrogen atmosphere flow 1000mL/min～3000mL/min through aerobic fermentation, regulating microwave power is 200W～500W(300 ℃-500 ℃) first charing, carbonization time is 30 min～120min;
E, High-Power Microwave thermal activation, regulating microwave power after the charing is 800W～2000W(500 ℃-1000 ℃), continuing activation under the protective condition of nitrogen atmosphere flow 1000mL/min～3000mL/min, soak time is 30 min～120min;
F, washing: the composite activated carbon after will activating is used deionized water wash after boiling 10min-30min with the hydrochloric acid soln immersion of 1:5 earlier, washs at least three water to neutral slant acidity, and reclaims the activator zinc chloride;
G, drying: will till dry 1h-6h is dried substantially to surface-moisture in 105 ℃ baking oven to neutral combination product, pack to be used through washing.
Selected coal-tar residue refers to through refining the product that is rich in the high-carbon grade and the waste material of tar in the method among the present invention; Mud mainly is that organic mud is rich on the mud and the natural swampland surface that produce after biological process is handled waste water, wherein the fixed carbon component content be respectively 〉=80%, 5-10 %; Moisture is respectively≤and 10%, 80-95%, other (impurity etc.) are respectively 5-10%, 0-10%, if foreign matter content needs through Screening Treatment more; Acid such as activator phosphoric acid, hydrochloric acid, sulfuric acid; Alkali such as sodium hydroxide, potassium hydroxide; Salt such as yellow soda ash, Repone K, sodium bicarbonate replace; Bacterial classification be can degradation of hydrocarbon the coal microorganism, and it can be adapted to the halophile of the molten mechanism degraded of alkali coal material, as negative bacillus, positive bacillus, genus bacillus, Mucor, aspergillus etc., the domestication liquid nutrient medium makes its concentration C FO=1*10
8-1*10
9
Major advantage of the present invention: 
Coal-tar residue and mud mixing high-temperature aerobic fermentation with high-carbon content, utilize the microorganism growth metabolism to take full advantage of the carbon resource in the larger molecular organics in two kinds of compounding substances, be translated into more low molecular carbon resource, be beneficial to and reduce the activation energy that it produces gac, save cost;
It is useful resources that coal-tar residue and mud mixed fermentation are taken full advantage of the resource conversion that the different energy of oxidation microorganism high-temperature aerobic fermentation in the mud takes full advantage of in the fermentation body;
This method adopts the compound sample of microwave activation, is heated evenly, and activating velocity is fast, reduces production costs;
It is that activator prepares gac with the zinc chloride that this method adopts the microwave heat two-step approach, and the charing stage is conducive to the aperture and radially forms, and activation stage is conducive to the aperture and laterally forms, and increases its microvoid structure;
Technological operation is easy, easy to control, cost is low, and the technological process environmentally safe;
Technology does not have strict demand to the material composition of producing gac, and is applied widely; The product of producing can be widely used in environmental protection industries such as industry, sanitary wastewater processing, atmospheric polluting material removal, heavy metal accumulation removal, deodorizing, sound insulation, has broad application prospects.
Embodiment
Be the specific embodiment that coal-tar residue/mud is produced gac below:
Can produce the product that reaches the object of the invention by the various embodiments described above parameter and by following processing step.Embodiments of the invention all can be implemented, and the invention is not restricted to these embodiment.
Technical scheme of the present invention is: a kind of microwave thermal activated coal coke tar refuse/sludge fermentation mixture feedstock production process of active carbon, it is at first with coal-tar residue fragmentation, levigate to more than 200 orders, after itself and mud were mixed aerobe fermentation 10-20 days, its quality of adding 0.5-4 doubly gets zinc chloride and makes activator in the mixed fermentation body then, the 12-24h that infiltrates under 70-80 ℃ of condition is placed on N at last
2Charcoal activation 30-120min obtains coal-tar residue/mud mixed active charcoal in the microwave charring furnace under the protective condition, finally by be washed to neutral back dry product of the present invention.
Concrete processing step is:
A, coal-tar residue pulverizing and jevigating: through crusher in crushing by pulverizer be ground to 200 orders below stand-by earlier coal-tar residue;
B, mixed coal tar slag and sludge fermentation: will pulverize stand-by coal-tar residue and contain organic abundant mud mixing according to coal-tar residue quality: sludge quality=0.5:1-1:1, regulating its mixture water ratio is 50%-70%, C:N 〉=20:1, as the pH of mixture not under the interval condition at 5-8, regulating pH with the sodium hydroxide solution of the phosphoric acid of 5%-20%, 1-5moL/L is 5-8; According to mixture, bacterium volume ratio be=10:1 inserts the liquid bacterial strain, keeping temperature is 30 ℃ of-65 ℃ of following high-temperature aerobic fermentation 10-20 days;
C, infiltration mixed fermentation body: be that 1:1-1:2 mixes by the mass ratio of fermentation body, activator zinc chloride with the mixed fermentation body behind aerobic fermentation, adding certain water gaging becomes muddy fully to mix, place microwave oven to regulate temperature at 70 ℃-80 ℃ infiltration 6h-12h, it is thick that its water ratio after immersion is that 30%-40% presents, and places the charcoal activated reactor to be activated then;
D, the hot charing pre-treatment of low power microwave: will soak microwave oven under the protective condition that pretreated thick mixture places nitrogen atmosphere flow 1000mL/min～3000mL/min through aerobic fermentation, regulating microwave power is 200W～500W(300 ℃-500 ℃) first charing, carbonization time is 30 min～120min;
E, High-Power Microwave thermal activation, regulating microwave power after the charing is 800W～2000W(500 ℃-1000 ℃), continuing activation under the protective condition of nitrogen atmosphere flow 1000mL/min～3000mL/min, soak time is 30 min～120min;
F, washing: the composite activated carbon after will activating is used deionized water wash after boiling 10min-30min with the hydrochloric acid soln immersion of 1:5 earlier, washs at least three water to neutral slant acidity, and reclaims the activator zinc chloride;
G, drying: will till dry 1h-6h is dried substantially to surface-moisture in 105 ℃ baking oven to neutral combination product, pack to be used through washing.
Selected coal-tar residue refers to through refining the product that is rich in the high-carbon grade and the waste material of tar in the method among the present invention; Mud mainly is that organic mud is rich on the mud and the natural swampland surface that produce after biological process is handled waste water, wherein the fixed carbon component content be respectively 〉=80%, 5-10 %; Moisture is respectively≤and 10%, 80-95%, other (impurity etc.) are respectively 5-10%, 0-10%, if foreign matter content needs through Screening Treatment more; Acid such as activator phosphoric acid, hydrochloric acid, sulfuric acid; Alkali such as sodium hydroxide, potassium hydroxide; Salt such as yellow soda ash, Repone K, sodium bicarbonate replace; Bacterial classification be can degradation of hydrocarbon the coal microorganism, and it can be adapted to the halophile of the molten mechanism degraded of alkali coal material, as negative bacillus, positive bacillus, genus bacillus, Mucor, aspergillus etc., the domestication liquid nutrient medium makes its concentration C FO=1*10
8-1*10
9
Claims (4)
1. a microwave thermal activates coal-tar residue ∕ sludge fermentation mixture raw material production process of active carbon, it is characterized in that its concrete processing step is:
A, coal-tar residue pulverizing and jevigating: through crusher in crushing by pulverizer be ground to 200 orders more than stand-by earlier coal-tar residue;
B, mixed coal tar slag and sludge fermentation: will pulverize stand-by coal-tar residue and contain organic abundant mud mixing according to coal-tar residue quality: sludge quality=0.5:1～1:1, regulating its mixture water ratio is 50%～70%, C:N is more than or equal to 20:1, as the pH of mixture not under the interval condition 5～8, it is 5～8 that the phosphoric acid with 5%～20%, the sodium hydroxide solution of 1～5moL/L are regulated pH; According to mixture, bacterium volume ratio be=10:1 inserts the liquid bacterial strain, keeping temperature is 30 ℃～65 ℃ following high-temperature aerobic fermentations 10～20 days;
C, infiltration mixed fermentation body: be that 1:1～1:2 mixes by the mass ratio of fermentation body, activator zinc chloride with the mixed fermentation body behind aerobic fermentation, adding certain water gaging becomes muddy fully to mix, place microwave oven to regulate temperature at 70 ℃～80 ℃ infiltration 6h～12h, its water ratio after infiltration is 30%～40% to present thickly, places the charcoal activated reactor to be activated then;
D, the hot charing pre-treatment of low power microwave: will place microwave oven under the protective condition of nitrogen atmosphere flow 1000mL/min～3000mL/min through the aerobic fermentation pretreated thick mixture that infiltrates, regulating microwave power is 200W～500W elder generation charing, and carbonization time is 30 min～120min;
E, High-Power Microwave thermal activation, regulating microwave power after the charing is 800W～2000W, continues activation under the protective condition of nitrogen atmosphere flow 1000mL/min～3000mL/min, soak time is 30 min～120min;
F, washing: use deionized water wash after the resulting material of E step boiled 10min-30min with the hydrochloric acid soln infiltration of 1:5 earlier, wash extremely neutral slant acidity of at least three water, and recovery activator zinc chloride;
G, drying: will through washing to neutral product in 105 ℃ baking oven dry 1h～6h to surface-moisture dry product of the present invention.
2. microwave thermal activated coal coke tar refuse according to claim 1/sludge fermentation mixture raw material production process of active carbon, it is characterized in that, selected coal-tar residue refers to through refining the product that is rich in the high-carbon grade and the waste material of tar, the fixed carbon component content is more than or equal to 80%, and moisture is less than or equal to 10%; Described mud mainly is to handle the mud and the natural swampland surface that produce behind the waste water through biological process to be rich in organic mud, fixed carbon component content 5～10 %; Moisture is 80～95%.
3. microwave thermal activated coal coke tar refuse according to claim 1/sludge fermentation mixture raw material production process of active carbon is characterized in that described activator phosphoric acid, hydrochloric acid, sulfuric acid; Sodium hydroxide, potassium hydroxide; Yellow soda ash, Repone K, sodium bicarbonate salt replace.
4. microwave thermal activated coal coke tar refuse according to claim 1/sludge fermentation mixture raw material production process of active carbon, it is characterized in that, described liquid bacterial strain is the coal microorganism of the hydrocarbon of degrading, and it can be adapted to the halophile of the molten mechanism degraded of alkali coal material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110211312 CN102381705B (en) | 2011-07-27 | 2011-07-27 | Method for producing activated carbon by thermally activating coal tar dreg/ sludge fermentation body by using microwaves |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110211312 CN102381705B (en) | 2011-07-27 | 2011-07-27 | Method for producing activated carbon by thermally activating coal tar dreg/ sludge fermentation body by using microwaves |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102381705A CN102381705A (en) | 2012-03-21 |
| CN102381705B true CN102381705B (en) | 2013-08-21 |
Family
ID=45821608
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110211312 Active CN102381705B (en) | 2011-07-27 | 2011-07-27 | Method for producing activated carbon by thermally activating coal tar dreg/ sludge fermentation body by using microwaves |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102381705B (en) |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102674344A (en) * | 2012-05-22 | 2012-09-19 | 韩钊武 | Method for producing activated carbon by coal tar |
| CN104045082A (en) * | 2014-06-25 | 2014-09-17 | 无锡市崇安区科技创业服务中心 | Sludge activated carbon and preparation method thereof |
| CN104556029B (en) * | 2014-12-21 | 2017-03-08 | 沈阳工程学院 | Petroleum residual oil is combined with tar slag and prepares activated carbon and fuel oil |
| CN106185933A (en) * | 2016-07-27 | 2016-12-07 | 福建工程学院 | A kind of method that paper-making deinking mud prepares activated carbon |
| CN106276896B (en) * | 2016-08-09 | 2018-11-13 | 山东建筑大学 | A kind of preparation method of Micro -storedstalk activated carbon |
| CN106986340A (en) * | 2017-04-20 | 2017-07-28 | 神华集团有限责任公司 | Super-activated carbon, and preparation method thereof |
| CN108190888A (en) * | 2018-03-22 | 2018-06-22 | 淮北智淮科技有限公司 | A kind of biomass granular activated carbon and preparation method thereof |
| CN108465449A (en) * | 2018-06-07 | 2018-08-31 | 张家港保税区宝成环保科技有限公司 | For greasy filth, the microwave cracking machine and cleavage method of waste oil, Regenevating Waste Activated Carbon |
| CN108911286A (en) * | 2018-07-18 | 2018-11-30 | 张金河 | A kind of 3,4- dichloroaniline wastewater processing technology |
| CN110563487A (en) * | 2019-09-12 | 2019-12-13 | 广西博世科环保科技股份有限公司 | preparation method of anaerobic sludge-based biochar |
| CN110713182A (en) * | 2019-11-06 | 2020-01-21 | 中冶南方都市环保工程技术股份有限公司 | Method and system for co-processing coking wastewater sludge and tar residue |
| CN112811782A (en) * | 2020-12-31 | 2021-05-18 | 上海源绿水务科技有限公司 | Method for carbonizing and treating sludge by microwave heating |
| CN115090264B (en) * | 2022-07-26 | 2023-10-20 | 中国矿业大学 | Super-hydrophobic/super-oleophylic adsorbent prepared from coal gas slag as raw material, and preparation method and application thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4149994A (en) * | 1977-12-02 | 1979-04-17 | The Carborundum Company | Granular activated carbon manufacture from brown coal treated with dilute inorganic acid |
| CN1644495A (en) * | 2004-12-14 | 2005-07-27 | 南开大学 | Method for preparing active carbon from urban sewage treatment plant mud |
| CN1986399A (en) * | 2006-12-25 | 2007-06-27 | 天津城市建设学院 | Preparing process of active sludge carbon for desulfurizing fume |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3682376B2 (en) * | 1998-08-31 | 2005-08-10 | 株式会社まさなみ鉄工 | Method for producing carbon-containing granular activated sludge fertilizer |
-
2011
- 2011-07-27 CN CN 201110211312 patent/CN102381705B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4149994A (en) * | 1977-12-02 | 1979-04-17 | The Carborundum Company | Granular activated carbon manufacture from brown coal treated with dilute inorganic acid |
| CN1644495A (en) * | 2004-12-14 | 2005-07-27 | 南开大学 | Method for preparing active carbon from urban sewage treatment plant mud |
| CN1986399A (en) * | 2006-12-25 | 2007-06-27 | 天津城市建设学院 | Preparing process of active sludge carbon for desulfurizing fume |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102381705A (en) | 2012-03-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102381705B (en) | Method for producing activated carbon by thermally activating coal tar dreg/ sludge fermentation body by using microwaves | |
| CN110171830B (en) | Preparation method and application of nitrogen-doped magnetic biochar | |
| Xu et al. | Hydrothermal carbonization of sewage sludge: Effect of aqueous phase recycling | |
| Xu et al. | Improving performance and phosphorus content of anaerobic co-digestion of dairy manure with aloe peel waste using vermiculite | |
| CN109226188B (en) | Method for treating kitchen waste by hydrothermal carbonization coupled anaerobic digestion | |
| Song et al. | Improving biohydrogen production through dark fermentation of steam-heated acid pretreated Alternanthera philoxeroides by mutant Enterobacter aerogenes ZJU1 | |
| Zhang et al. | A review of biochar prepared by microwave-assisted pyrolysis of organic wastes | |
| CN104370582B (en) | A kind of organic waste odorless aerobic compost method | |
| CN107365593A (en) | A kind of method that antibiotic bacterium dregs prepare charcoal | |
| CN104724694A (en) | Preparation method of rice straw biochar | |
| CN102942978B (en) | Manufacturing method of sludge biomass fuel | |
| Huezo et al. | Hydrothermal carbonization of anaerobically digested sewage sludge for hydrochar production | |
| CN105417918A (en) | Technical method for treating civil sludge through microwave pyrolysis | |
| Wu et al. | Improving nutrients removal and energy recovery from wastes using hydrochar | |
| CN210419701U (en) | Straw and sludge coprocessing device | |
| CN104109550A (en) | Method and system for preparing biological oil by antibiotic bacteria residue | |
| CN105016600A (en) | Sludge biological drying method | |
| Razaviarani et al. | Algal biomass dual roles in phycoremediation of wastewater and production of bioenergy and value-added products | |
| CN103739179A (en) | Sludge pre-treatment method | |
| Liu et al. | Obtain high quality hydrochar from waste activated sludge with low nitrogen content using acids and alkali pretreatment by enhancing hydrolysis and catalyzation | |
| CN103896472B (en) | A kind of mud microwave cracking method of resource | |
| CN111905691B (en) | Rapid oxidation modification method of biomass charcoal, product and application thereof | |
| CN101255227A (en) | Method for synthesizing polyhydroxyalkanoates by employing oil-containing sludge | |
| CN204918477U (en) | Clean processing apparatus of mud | |
| CN108218160A (en) | A kind of sludge fast and harmless treatment process of high pressure hydro-thermal and recirculating fluidized bed pyrolysis auxiliary |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |