CN102766494A - Process for preparing coal water slurry by winery wastewater - Google Patents
Process for preparing coal water slurry by winery wastewater Download PDFInfo
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Abstract
The invention discloses a process for preparing coal water slurry by winery wastewater, which relates to a wastewater treatment field and a coal water slurry preparation field. The coal water slurry is prepared by the winery wastewater, thereby making the best of an available heating value inside the winery wastewater, implementing harmless treatment for the winery wastewater and residues, alleviating the environment pollution, and saving a plurality of sewage treatment cost; synchronously, the water resource is saved, the indexes of the prepared coal water slurry accord with the requirements, the coal water slurry can be taken as a fuel of an industrial boiler and a coal water slurry, the superheated steam produced by the boiler can be used for generating and supplying heat, and the adequate and cheap power energy can be provided for a production process of the wineries, so that the coal resources are saved and the production cost is greatly reduced; and the capacities of the wineries and the coal water slurry factories are configured in a balanced way, so that the zero release of the winery wastewater and residues can be thoroughly implemented, the wastewater and residues of the wineries can be extensively consumed, and the discharge of pollutants in the wineries can be reduced.
Description
Technical field
The present invention relates to field of waste water treatment and coal water slurry preparation field, specifically a kind of brewing wastewater prepares the technology of coal water slurry.
Background technology
As everyone knows; Light industry is quite serious to the pollution of water resources; Wherein fermentation industry is only second to paper industry and occupies the second the pollution level of environment, and just shortage of China's water resources itself, the industrial pollution that is on the rise has more caused the nervous situation of water resources today.Contain multiple by product and waste that brewing process produces in the brewing wastewater, the annual brewing wastewater that produces of China is more than more than 4,000 ten thousand tons now, and COD is than higher in the waste water; The wastewater treatment expense of distillery is greatly about 2 yuan/ton, and processing costs is higher, and a lot of distillerys are profit-seeking; Waste water is not handled direct discharging; Not only waste resource, and cause serious industrial pollution, thereby fully and effectively brewing wastewater is fully utilized; Both can alleviate environmental pollution, again can save energy, reduce cost.
China is the country of a rich coal, oil-poor, weak breath, and coal has found that resource reaches 10141.02 hundred million tons, accounts for more than 80% of fossil energy, the petroleum resources relative shortage, and proven reserve are merely 3 tons per capita, and are consumed in and increase rapidly.Coal water slurry is to pulverize coal with water and contain surface-active dispersant solution to mix; The pulpous state fluid that is prepared from;, power burns under carrying then as heavy oil; Be the substitute products of heavy oil, residual oil, fallen by boiler combustion, can practice thrift out the bulk petroleum resource thereby reduce bulk petroleum.Coal water slurry can improve the rate of combustion of coal, reduces the pollution to environment, is a kind of extremely promising clean coal fuel.The preparation technology of coal water slurry is quite ripe at present, mainly contains high density ore grinding pulping process, middle concentration ore grinding pulping process, height---middle concentration ore grinding associating pulping process.The coal resources of China's abundant provide sufficient reliable coal for coal water slurry is prepared on the material choice, various places are different different with specification of quality according to raw material, adopted suit measures to local conditions, diversified pulping process.
Existing moisture has thermal value again in the brewing wastewater waste residue; Be well suited for being used to prepare coal water slurry, can utilize its moisture can utilize its available heating value again, can fall the harmless treatment of brewing wastewater waste residue again simultaneously; Kill two birds with one stone, the technology of utilizing brewing wastewater to prepare coal water slurry is not at present appeared in the newspapers.
Summary of the invention
For solving the technical problem of above-mentioned existence; The invention provides the technology that a kind of brewing wastewater prepares coal water slurry; Make full use of brewing wastewater and replace the slurrying water, make full use of the heat in the brewing wastewater waste residue, again the conserve water resource; Realize the pollution-free processing of brewing wastewater simultaneously, reduce the pollution of the discharging of waste water and dregs environment.
For achieving the above object, the technical scheme that the present invention adopts is following:
A kind of brewing wastewater prepares coal water slurry process, realizes through following steps:
(1) brewing wastewater is handled: collection distillery concentration is 3%～6% cleaning of evaporator waste water, clean bottles waste water, distillation waste water, and it is for use to get into buffer tank through links such as transportation, buffer memory, pre-treatment, conveying and meterings;
(2) feed coal is prepared: promote feed coal again with chapelet and carry out fragmentation through two counter beating hammer type disintegrators of chute entering, the granularity after the fragmentation is less than 5 millimeters, and it is for use that the feed coal after the fragmentation gets into buffering coal bin;
(3) dispersion agent adds: earlier dry powder dispersion agent or high concentration liquid dispersion agent being carried out thin up is 10%～15% to concentration, and it is for use to be delivered to the dispersion agent storage pool;
(4) stablizer adds: carry out dissolved dilution to stablizer earlier and arrive concentration 14%～20%, it is for use to import the stablizer buffer tank then;
(5) slurrying: by closed loop control system by setting requirement slurrying; The concentration of setting the preparation coal water slurry is controlled between 64%～67%; Feed coal and the brewing wastewater in the buffer tank in the buffering coal bin feed Ф 2.4 * 8.5m ball mill together by mass ratio 64%～67%:36%～33% of setting; 0.4%～0.7% the dispersant solution that the addition that allotment is good is in advance accounted for the dry coal quality adds ball mill simultaneously, carries out the high density ore grinding;
(6) stabilizing treatment: the product of ball mill outlet is the coal water slurry primary products, after coarse filtration, gets into surge tank, carries out the essence filter through being pumped into colour strainer again; The foreign matter in the slurry is sneaked in elimination; To reach after the smart filter that content is less than 0.5% more than 300 microns, be greater than 75%, filter the back from colour strainer and flow into stability and handle bucket less than 75 microns content; 0.10%～0.2% the stabiliser solution that simultaneously addition is accounted for the dry coal quality feeds stability and handles bucket; Make stablizer and coal slurry thorough mixing and to contact through stirring, each serial stability is handled and barrel is established two, tandem working; Coal water slurry after stability is handled is pumped into the mixing mixing vessels and carries out suitable stirring and evenly mixing processing, through being pumped into slurry can.
Said dispersion agent adopts the naphthalene sulfonic dipersant.
Said stablizer adopts the technical grade ferrous sulfate.
The present invention utilizes brewing wastewater to prepare coal water slurry, has made full use of the inner available heating value of brewing wastewater, realizes the harmless treatment to the brewing wastewater waste residue; Alleviate environmental pollution, saved a large amount of WWT expenses, practiced thrift water resources simultaneously; The various indexs of the coal water slurry for preparing meet the requirements, and as the fuel of Industrial Boiler, station boiler, the superheated vapour that boiler produces is used for generating and heat supply; Can be the distillery production technique sufficient, cheap power source is provided, practiced thrift coal resources, greatly reduce production cost; As long as the ability of brewery, coal water mixture plant configuration balance; Just can thoroughly realize the zero release of brewing wastewater waste residue, can consume the distillery waste water and dregs on a large scale, reduce the discharging of distillery pollutent; Thereby set up the Recycling Economy System of brewing wastewater waste residue mass-producing processing, comprehensive utilization of resources, have social benefit, economic benefit and environmental benefit significantly.
Embodiment
The brewing wastewater that the present invention set forth prepares the technology of coal water slurry, realizes through following steps:
(1) brewing wastewater is handled: collection distillery concentration is 3%～6% cleaning of evaporator waste water, clean bottles waste water, distillation waste water; It is for use to get into buffer tank through links such as transportation, buffer memory, pre-treatment, conveying and meterings; Wherein pre-treatment is to carry out pH value to measure, neutralize and stir; Carry and adopt the metering mono-pump, adopt magnetic flow meter to measure;
(2) feed coal is prepared: be promoted to 27 meters to feed coal with chapelet and carry out fragmentation through two counter beating hammer type disintegrators of chute entering again, the granularity after the fragmentation is less than 5 millimeters, and it is for use that the feed coal after the fragmentation gets into buffering coal bin;
(3) dispersion agent adds: adopt the naphthalene sulfonic dipersant, earlier dry powder dispersion agent or high concentration liquid dispersion agent being carried out thin up is 10%～15% to concentration, is delivered to the dispersion agent storage pool, for use;
(4) stablizer adds: stablizer adopts the technical grade ferrous sulfate, in the dilution agitation vat, carries out dissolved dilution to stablizer earlier and arrives concentration between 14%～20%, imports the stablizer buffer tank then, and is for use;
(5) slurrying: by closed loop control system by setting requirement slurrying; The concentration of setting the preparation coal water slurry is controlled between 64%～67%; Feed coal and the brewing wastewater in the buffer tank in the buffering coal bin feed Ф 2.4 * 8.5m ball mill together by mass ratio 64%～67%:36%～33% of setting; 0.4%～0.7% the dispersant solution that the addition that allotment is good is in advance accounted for the dry coal quality adds ball mill simultaneously, carries out the high density ore grinding; In adding the process of brewing wastewater, be principle, farthest utilize brewing wastewater not add water;
(6) stabilizing treatment: the product of ball mill outlet is the coal water slurry primary products, after the vibratory screening apparatus coarse filtration, gets into surge tank, again through being pumped into the smart filter of colour strainer; Smart filter back more than 300 microns content be less than 0.5%; Greater than 75%, elimination feeds stability and handles bucket after sneaking into foreign matter in the slurry (like large granular materials, less wood chip, plastic optical fibre etc.) less than 75 microns content; 0.10%～0.2% the stabiliser solution that simultaneously addition is accounted for the dry coal quality feeds stability and handles bucket; Make stablizer and coal slurry thorough mixing and to contact through stirring, each serial stability is handled and barrel is established two, tandem working; A full back overflow is gone into another, so that press the add-on and prolongation stablizer mixing time of the agent of constant volume method control stabilization.Coal water slurry after stability is handled is pumped into the mixing mixing vessels and carries out suitable stirring and evenly mixing processing, it is finally become both had good fluidity, and the finished product coal water slurry of stronger yielding stress is arranged again.Through the mixing coal water slurry after handling of sizing mixing, be the finished product coal water slurry through being pumped into slurry can.
Whole technology realizes by closed-loop control system, describes the present invention in detail below by technological parameter in the specific embodiment and experimental data.
Embodiment 1:
Processing condition: set paste producing amount 13t/h, slurry concentration 64%, the full water 8% of known coal; Brewing wastewater waste residue concentration is 3%, and brewing wastewater is a principle by no longer adding water, and dispersion agent is diluted to 10% solution; Addition is pressed 0.4% of dry coal amount, stablizer weaker concn 20%, and addition is pressed 0.1% of dry coal amount; Then wet coal consumption 8.93t/h, brewing wastewater consumption 3.74m
3/ h, the mass ratio of used dry coal and waste water are 64.25%:35.75%, add 0.317m through dispersion agent
3/ h, stablizer addition are 0.0392 m
3/ h is 64.25% through the concentration of measuring the coal water slurry that finally makes, and viscosity is 948mPaS, is specification product.
Embodiment 2:
Processing condition: set paste producing amount 13t/h, slurry concentration 64%, the full water 8% of known coal; Brewing wastewater waste residue concentration is 4%, and brewing wastewater is a principle by no longer adding water, and dispersion agent is diluted to 12% solution; Addition is pressed 0.55% of dry coal amount, stablizer weaker concn 15.5%, and addition is pressed 0.15% of dry coal amount; Then wet coal consumption 8.89t/h, brewing wastewater consumption 3.75m
3/ h, the mass ratio of used dry coal and waste water are 64.03%:35.97%, and dispersion agent adds 0.364m
3/ h, stablizer addition are 0.076 m
3/ h is 64.03% through the concentration of measuring the coal water slurry that finally makes, and viscosity is 925mPaS, is specification product.
Embodiment 3:
Processing condition: set paste producing amount 13.5t/h, slurry concentration 64.5%, the full water 7.5% of known coal; Brewing wastewater waste residue concentration is 3.52%, and brewing wastewater is a principle by no longer adding water, and dispersion agent is diluted to 13.64% solution; Addition is pressed 0.58% of dry coal amount, stablizer weaker concn 15.85%, and addition is pressed 0.13% of dry coal amount; Then wet coal consumption 9.28t/h, brewing wastewater consumption 3.85m
3/ h, the mass ratio of used dry coal and waste water are 64.48%:35.52%, and dispersion agent adds 0.353m
3/ h, stablizer addition are 0.067 m
3/ h is 64.48% through the concentration of measuring the coal water slurry that finally makes, and viscosity is 986mPaS, is specification product.
Embodiment 4:
Processing condition: set paste producing amount 13.5t/h, slurry concentration 65%, the full water 8.3% of known coal; Brewing wastewater waste residue concentration is 3.25%, and brewing wastewater is a principle by no longer adding water, and dispersion agent is diluted to 14.22% solution; Addition is pressed 0.56% of dry coal amount, stablizer weaker concn 16.07%, and addition is pressed 0.12% of dry coal amount; Then wet coal consumption 9.45t/h, brewing wastewater consumption 3.71m
3/ h, the mass ratio of used dry coal and waste water are 64.92%:35.08%, and dispersion agent adds 0.329m
3/ h, stablizer addition are 0.0618 m
3/ h is 64.92% through the concentration of measuring the coal water slurry that finally makes, and viscosity is 1034mPaS, is specification product.
Embodiment 5:
Processing condition: set paste producing amount 13t/h, slurry concentration 64%, the full water 8% of known coal; Brewing wastewater waste residue concentration is 6%, and brewing wastewater is a principle by no longer adding water, and dispersion agent is diluted to 15% solution; Addition is pressed 0.7% of dry coal amount, stablizer weaker concn 14%, and addition is pressed 0.2% of dry coal amount; Then wet coal consumption 9.04t/h, brewing wastewater consumption 3.77m
3/ h, the mass ratio of used dry coal and waste water are 64%:36%, and dispersion agent adds 0.396m
3/ h, stablizer addition are 0.112 m
3/ h is 64% through the concentration of measuring the coal water slurry that finally makes, and viscosity is 987mPaS, is specification product.
Embodiment 6:
Processing condition: set paste producing amount 13.5t/h, slurry concentration 65.5%, the full water 8.5% of known coal; Brewing wastewater waste residue concentration is 3.38%, and brewing wastewater is a principle by no longer adding water, and dispersion agent is diluted to 12.68% solution; Addition is pressed 0.57% of dry coal amount, stablizer weaker concn 16.25%, and addition is pressed 0.12% of dry coal amount; Then wet coal consumption 9.54t/h, brewing wastewater consumption 3.56m
3/ h, the mass ratio of used dry coal and waste water are 65.63%:34.37%, and dispersion agent adds 0.0.379m
3/ h, stablizer addition are 0.0616 m
3/ h is 65.63% through the concentration of measuring the coal water slurry that finally makes, and viscosity is 1087mPaS, is specification product.
Embodiment 5:
Processing condition: set paste producing amount 13.5t/h, slurry concentration 66%, the full water 8.0% of known coal; Brewing wastewater waste residue concentration is 3.55%, and brewing wastewater is a principle by no longer adding water, and dispersion agent is diluted to 12.05% solution; Addition is pressed 0.58% of dry coal amount, stablizer weaker concn 16.78%, and addition is pressed 0.12% of dry coal amount; Then wet coal consumption 9.56t/h, brewing wastewater consumption 3.51m
3/ h, the mass ratio of used dry coal and waste water are 66.07%:33.93%, and dispersion agent adds 0.408m
3/ h, stablizer addition are 0.060 m
3/ h is 66.07% through the concentration of measuring the coal water slurry that finally makes, and viscosity is 1156mPaS, is specification product.
Embodiment 6:
Processing condition: set paste producing amount 13.5t/h, slurry concentration 66.5%, the full water 7.8% of known coal; Brewing wastewater waste residue concentration is 3.48%, and brewing wastewater is a principle by no longer adding water, and dispersion agent is diluted to 12.11% solution; Addition is pressed 0.60% of dry coal amount, stablizer weaker concn 16.42%, and addition is pressed 0.11% of dry coal amount; Then wet coal consumption 9.62t/h, brewing wastewater consumption 3.44m
3/ h, the mass ratio of used dry coal and waste water are 66.44%:33.56%, and dispersion agent adds 0.424m
3/ h, stablizer addition are 0.0567 m
3/ h is 66.44% through the concentration of measuring the coal water slurry that finally makes, and viscosity is 1231mPaS, is specification product.
Embodiment 7:
Processing condition: set paste producing amount 13.5t/h, slurry concentration 67%, the full water 8.2% of known coal; Brewing wastewater waste residue concentration is 3.63%, and brewing wastewater is a principle by no longer adding water, and dispersion agent is diluted to 13.38% solution; Addition is pressed 0.62% of dry coal amount, stablizer weaker concn 15.66%, and addition is pressed 0.11% of dry coal amount; Then wet coal consumption 9.73t/h, brewing wastewater consumption 3.62m
3/ h, the mass ratio of used dry coal and waste water are 67%:33 %, and dispersion agent adds 0.405m
3/ h, stablizer addition are 0.0599 m
3/ h is 66.98% through the concentration of measuring the coal water slurry that finally makes, and viscosity is 1282mPaS, is specification product.
Embodiment 8:
Processing condition: set paste producing amount 14.5t/h, slurrying concentration 65%, the full water 6.5% of known coal; Brewing wastewater waste residue concentration is 5.25%, and brewing wastewater is a principle by no longer adding water, and dispersion agent is diluted to 10.56% solution; Addition is pressed 0.45% of dry coal amount, stablizer weaker concn 14.36%, and addition is pressed 0.18% of dry coal amount; Then wet coal consumption 9.86t/h, brewing wastewater consumption 4.24m
3/ h, the mass ratio of used dry coal and waste water are 65.28%:34.72%, and dispersion agent adds 0.383m
3/ h, stablizer addition are 0.111 m
3/ h is 65.28% through the concentration of measuring the coal water slurry that finally makes, and viscosity is 1014mPaS, is specification product.
Embodiment 9:
Processing condition: set paste producing amount 15t/h, slurry concentration 65%, the full water 9.8% of known coal; Brewing wastewater waste residue concentration is 4.28%, and brewing wastewater is a principle by no longer adding water, and dispersion agent is diluted to 14.7% solution; Addition is pressed 0.66% of dry coal amount, stablizer weaker concn 17.45%, and addition is pressed 0.15% of dry coal amount; Then wet coal consumption 10.64t/h, brewing wastewater consumption 3.92m
3/ h, the mass ratio of used dry coal and waste water are 64.45%:35.55%, and dispersion agent adds 0.417m
3/ h, stablizer addition are 0.079 m
3/ h is 64.45% through the concentration of measuring the coal water slurry that finally makes, and viscosity is 1065mPaS, is specification product.
Embodiment 10:
Processing condition: set paste producing amount 15.5t/h, slurry concentration 65%, the full water 8.55% of known coal; Brewing wastewater waste residue concentration is 3.73%, and brewing wastewater is a principle by no longer adding water, and dispersion agent is diluted to 11.98% solution; Addition is pressed 0.55% of dry coal amount, stablizer weaker concn 15.48%, and addition is pressed 0.13% of dry coal amount; Then wet coal consumption 10.86t/h, brewing wastewater consumption 4.18m
3/ h, the mass ratio of used dry coal and waste water are 65.24%:34.76%, and dispersion agent adds 0.441m
3/ h, stablizer addition are 0.0798 m
3/ h is 65.24% through the concentration of measuring the coal water slurry that finally makes, and viscosity is 1126mPaS, is specification product.
Embodiment 11:
Processing condition: set paste producing amount 16t/h, slurry concentration 67%, the full water 6.85% of known coal; Brewing wastewater waste residue concentration is 5.66%, and brewing wastewater is a principle by no longer adding water, and dispersion agent is diluted to 11.44% solution; Addition is pressed 0.48% of dry coal amount, stablizer weaker concn 19.3%, and addition is pressed 0.14% of dry coal amount; Then wet coal consumption 11.51t/h, brewing wastewater consumption 4.28m
3/ h, the mass ratio of used dry coal and waste water are 66.95%:33.05%, and dispersion agent adds 0.428m
3/ h, stablizer addition are 0.0711 m
3/ h is 66.95% through the concentration of measuring the coal water slurry that finally makes, and viscosity is 1255mPaS, is specification product.
Embodiment 12:
Processing condition: set paste producing amount 17t/h, slurry concentration 65%, the full water 9.47% of known coal; Brewing wastewater waste residue concentration is 4.64%, and brewing wastewater is a principle by no longer adding water, and dispersion agent is diluted to 11.88% solution; Addition is pressed 0.65% of dry coal amount, stablizer weaker concn 18.35%, and addition is pressed 0.17% of dry coal amount; Then wet coal consumption 12t/h, brewing wastewater consumption 4.39m
3/ h, the mass ratio of used dry coal and waste water are 65.22%:34.78%, and dispersion agent adds 0.576m
3/ h, stablizer addition are 0.0965 m
3/ h is 65.22% through the concentration of measuring the coal water slurry that finally makes, and viscosity is 1164mPaS, is specification product.
Certainly, above-mentioned explanation is not to be limitation of the present invention, and the present invention also is not limited in above-mentioned giving an example, and variation, remodeling, interpolation or replacement that the technician in present technique field is made in essential scope of the present invention also should belong to protection scope of the present invention.
Claims (3)
1. a brewing wastewater prepares the technology of coal water slurry, it is characterized in that, realizes through following steps:
(1) brewing wastewater is handled: collection distillery concentration is 3%～6% cleaning of evaporator waste water, clean bottles waste water, distillation waste water, and it is for use to get into buffer tank through links such as transportation, buffer memory, pre-treatment, conveying and meterings;
(2) feed coal is prepared: promote feed coal again with chapelet and carry out fragmentation through two counter beating hammer type disintegrators of chute entering, the granularity after the fragmentation is less than 5 millimeters, and it is for use that the feed coal after the fragmentation gets into buffering coal bin;
(3) dispersion agent adds: earlier dry powder dispersion agent or high concentration liquid dispersion agent being carried out thin up is 10%～15% to concentration, and it is for use to be delivered to the dispersion agent storage pool;
(4) stablizer adds: carry out dissolved dilution to stablizer earlier and arrive concentration 14%～20%, it is for use to import the stablizer buffer tank then;
(5) slurrying: by closed loop control system by setting requirement slurrying; The concentration of setting the preparation coal water slurry is controlled between 64%～67%; Feed coal and the brewing wastewater in the buffer tank in the buffering coal bin feed Ф 2.4 * 8.5m ball mill together by mass ratio 64%～67%:36%～33% of setting; 0.4%～0.7% the dispersant solution that the addition that allotment is good is in advance accounted for the dry coal quality adds ball mill simultaneously, carries out the high density ore grinding;
(6) stabilizing treatment: the product of ball mill outlet is the coal water slurry primary products, after coarse filtration, gets into surge tank, carries out the essence filter through being pumped into colour strainer again; The foreign matter in the slurry is sneaked in elimination; To reach after the smart filter that content is less than 0.5% more than 300 microns, be greater than 75%, filter the back from colour strainer and flow into stability and handle bucket less than 75 microns content; 0.10%～0.2% the stabiliser solution that simultaneously addition is accounted for the dry coal quality feeds stability and handles bucket; Make stablizer and coal slurry thorough mixing and to contact through stirring, each serial stability is handled and barrel is established two, tandem working; Coal water slurry after stability is handled is pumped into the mixing mixing vessels and carries out suitable stirring and evenly mixing processing, through being pumped into slurry can.
2. brewing wastewater according to claim 1 prepares the technology of coal water slurry, it is characterized in that, said dispersion agent adopts the naphthalene sulfonic dipersant.
3. brewing wastewater according to claim 1 prepares the technology of coal water slurry, it is characterized in that, said stablizer adopts the technical grade ferrous sulfate.
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| CN106190377A (en) * | 2016-08-24 | 2016-12-07 | 内蒙古伊泰煤制油有限责任公司 | A kind of recoverying and utilizing method of Fischer-Tropsch synthesis oil waste water |
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| CN105542887A (en) * | 2014-10-30 | 2016-05-04 | 中国石油化工股份有限公司 | Preparation of coal water slurry by using high salt content wastewater |
| CN105623757A (en) * | 2014-10-30 | 2016-06-01 | 中国石油化工股份有限公司 | Method for preparing coal water slurry from oil refining and chemical engineering alkaline residue waste water |
| CN105623756A (en) * | 2014-10-30 | 2016-06-01 | 中国石油化工股份有限公司 | Method for preparing coal water slurry through mixing of reverse osmosis membrane (RO) sewage and VAE emulsion waste water |
| CN105623757B (en) * | 2014-10-30 | 2017-10-24 | 中国石油化工股份有限公司 | Water-coal-slurry is prepared using oil-refining chemical alkaline sewage |
| CN105623756B (en) * | 2014-10-30 | 2017-12-08 | 中国石油化工股份有限公司 | Water-coal-slurry is mixed with using RO sewage and VAE emulsions wastewaters |
| CN105542887B (en) * | 2014-10-30 | 2017-12-08 | 中国石油化工股份有限公司 | Water-coal-slurry is prepared using high slat-containing wastewater |
| CN104560248A (en) * | 2015-01-30 | 2015-04-29 | 袁涓 | Coal water slurry prepared from industrial wastewater and preparation technique thereof |
| CN106190377A (en) * | 2016-08-24 | 2016-12-07 | 内蒙古伊泰煤制油有限责任公司 | A kind of recoverying and utilizing method of Fischer-Tropsch synthesis oil waste water |
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| CN102766494B (en) | 2016-05-25 |
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