CN106381180A - Method for preparing gas-bubble water-coal slurry or water-coke slurry by utilizing sludge and organic waste liquid through fermentation - Google Patents
Method for preparing gas-bubble water-coal slurry or water-coke slurry by utilizing sludge and organic waste liquid through fermentation Download PDFInfo
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- CN106381180A CN106381180A CN201610874592.9A CN201610874592A CN106381180A CN 106381180 A CN106381180 A CN 106381180A CN 201610874592 A CN201610874592 A CN 201610874592A CN 106381180 A CN106381180 A CN 106381180A
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
- C10L1/00—Liquid carbonaceous fuels
- C10L1/32—Liquid carbonaceous fuels consisting of coal-oil suspensions or aqueous emulsions or oil emulsions
- C10L1/326—Coal-water suspensions
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Abstract
The invention relates to a technique for improving the dispersibility and the stability of water-coal slurry/water-coke slurry, and aims at providing a method for preparing gas-bubble water-coal slurry or water-coke slurry by utilizing sludge and organic waste liquid through fermentation. The method comprises the following steps of blending coal powder/petroleum coke, the sludge and the organic waste liquid with a water-coal slurry additive/water-coke slurry additive, and preparing the water-coal slurry, which can ferment per se to generate gas bubbles, from an obtained mixture, wherein a relation among all raw-material components in percentages by mass concentration is that the percentage of the coal powder or petroleum coke powder is 47.8 to 62.0 percent, the percentage of the sludge which is converted according to moisture content of 80 percent is 9.5 to 12.5 percent, the percentage of the organic waste liquid is 25.0 to 42.4 percent, and the percentage of the water-coal slurry additive or the water-coke slurry additive is 0.3 to 0.5 percent. In the method provided by the invention, microorganisms in the sludge and the organic waste liquid are fermented to generate the gas bubbles; in a storage process, the gas bubbles are diffused inside a slurry body; the dispersibility and the stability of the slurry body are improved; the method is easy to realize, and is convenient to operate; slurry making raw materials are low in costs; the use level of the additive can be decreased by 40 percent; the slurry making cost is saved drastically; the purposes of utilizing waste and reducing environmental pollution are realized.
Description
Technical field
The present invention relates to a kind of improve the dispersed technology path with stability of the burnt slurry of water-coal-slurry/water and its method, specifically
It is related to for the blending such as mud, coal or petroleum coke, water or organic liquid waste to prepare the burnt slurry of bubble water-coal-slurry/water, using mud and organic
Waste liquid itself fermentation gas improve the dispersiveness of slurry and the technology path of stability and its method.
Background technology
With the fast development of China's economic and society, the demand of the energy is continuously increased, the energy supplies in recent years to make China
Tense situation should be constantly in, it has also become the bottleneck of the national economic development.The consumption of particularly high-grade energy such as oil, natural gas
Assume accelerated growth situation in recent years.China became net import of oil state from 1993, and production-demand gap constantly increases.2015 I
State's net importation oil amount reaches more than 3.28 hundred million tons, and dependence on foreign countries for oil reaches more than 60.6%.Due to this several years international oil prices
High, a large amount of foreign exchanges need to be paid every year for this.And in following 10-20, China's economy will high speed development, oil needs
Ask and will assume strong growth trend, supply and demand will continue to increase.Therefore, find new generation oil for gas fuel, substitute China and disappear every year
The bulk petroleum of consumption and natural gas, it is ensured that the sustainable development of the stable and social economy of China's energy supply, are to compel highly necessary to enter
The work of row.
Additionally, with economic and society fast development, the amount of sludge of municipal sewage plant also increases considerably, such as
What high-efficiency cleaning processes these mud at low cost, makes the development sustainability in city, it has also become problem in the urgent need to address.
Usually, the mud that sewage treatment plant dispatches from the factory is the mud after mechanical dehydration, and moisture content still reaches more than 80%, is difficult to
Directly utilize further.As burned or blending coal combustion, need moisture removal to 40-50% about, so also need to consume
Substantial amounts of heat energy.Additionally, the organic liquid waste that industry and life produce also is continuously increased in recent years, as processing of farm products, wine brewing, form sediment
The organic liquid waste that powder/sugar manufacture, alcohol manufacture, cheese manufacture or meat processing industry discharge in process of production, these are organic
The often organic substance that can be utilized by microorganism containing higher concentration in waste liquid, such as polysaccharide, protein, lipid etc., such as where
Managing these waste liquids is also the difficult problem encountered in economy and social development.
The burnt slurry of water-coal-slurry/water is a kind of fluid cleaning fuel of technology maturation, and it can have good flowing as oil
Property and stability, pumpable, atomization burnt with stable, the clean environment of storage and conveying, and boiler combustion efficiency is high, is a kind of ratio
Comparatively ideal generation oil, for gas clean fuel, can be widely used in Industrial Boiler, Industrial Stoves and station boiler.Water-coal-slurry/water
Burnt slurry technology is the suitable generation oil being suitable for China's current stage for gas, environmental protection and power-saving technology.Therefore, in national Filter Tuber For Clean Coal meter
It is listed in developing emphasis technology in drawing, in Energy Development in China, there is highly important strategic importance in the works.
The dispersiveness of slurry and stability are to prepare the key technology of the burnt slurry of water-coal-slurry/water, are also the weight weighing its quality
Want index.In order that the burnt slurry of water-coal-slurry/water has excellent dispersion and stability, during storage, occur without separation of solid and liquid
Phenomenon, does not produce hard precipitation simultaneously, generally requires to add additive in slurry (mainly by disperseing during commercial Application
Agent and stabilizer composition).The dispersant of water-coal-slurry and stabilizer kind are more at present, and dispersant has anion surfactant,
As lignosulfonates, naphthalenesulfonate formaldehyde condensation compound, polyolefm sulfonates, polycarboxylate etc., also there are cation and nonionic
Type surfactant；Stabilizer mainly has natural and synthesis hydrophilic macromolecule, such as cellulose, polysaccharide, carboxymethylcellulose calcium
With polyacrylamide etc. and for example some kinds of clay of some inorganic minerals.These additives (include dispersant and stablize
Agent) have preferable effect in the preparation of water-coal-slurry, but must be mated with coal characteristic, regular replacing additive with
Adapt to coal to require, for the burnt slurry of water, stablizing effect is very undesirable, short only 1-2 days of stabilization time, long
Also only one week about.Furthermore it is noted that the expense of additive is to be only second to pulping raw material expense in slurrying cost
Chief component.
Therefore, exploitation is a kind of can improve water-coal-slurry/water burnt slurry dispersiveness technical side cheap with stability, price and cost
Method, the consumption of additive when reducing slurrying, to the application cost reducing the burnt slurry of water-coal-slurry/water, improves the dispersiveness of slurry and steady
Qualitative, development and the popularization and application of accelerating water-coal-slurry/water Jiao's slurry technology are significant.
Content of the invention
The technical problem to be solved in the present invention is to overcome deficiency of the prior art, proposes a kind of using mud and organic
The method that bubble water-coal-slurry or the burnt slurry of water are prepared in waste liquid fermentation.
For solving technical problem, the solution of the present invention is：
A kind of method preparing the burnt slurry of bubble water-coal-slurry or water using mud and organic liquid waste fermentation is provided, be by coal dust,
Mud, organic liquid waste and slurries additive agent blend, and being prepared into itself to ferment produces the water-coal-slurry of bubble；Or by oil
Jiao, mud, organic liquid waste and water burnt slurry additive blends, and being prepared into the burnt slurry of water that energy itself fermentation produces bubble；Each raw material group
Point mass concentration percentage relation be：Coal dust or petroleum coke powder 47.8-62.0%, press the mud 9.5- of moisture content 80% conversion
12.5%th, organic liquid waste 25.0-42.4%, slurries additive agent or water burnt slurry additive 0.3-0.5%.
In the present invention, pass through to adjust the addition of organic liquid waste in blending procedure, make water-coal-slurry or the water being finally obtained
The mass concentration of the solid in burnt slurry is 50-65%.
In the present invention, described mud is the mud containing active microorganism, is municipal sewage or Industrial Waste Water Treatments mistake
The residual active sludge producing in journey or its mechanical dehydration product.
In the present invention, described organic liquid waste is the waste liquid containing the nutriment needed for growth of microorganism, is agricultural product
And food processing, starch/sugar manufacture, wine brewing or meat processing industry discharge in process of production containing polysaccharide, protein, fat
The organic liquid waste of class nutriment；Or the waste water of food and drink processing industry or family's kitchen discharge.
The present invention realizes principle：
Substantial amounts of microorganism is contained, these microorganisms can utilize polysaccharide, protein of mud itself etc. organic in mud
Material carries out fermentation output gas.As being blended into mud in the burnt slurry of water-coal-slurry/water, during storage, micro- in mud
The gas of the fermenting organic material output in biological utilisation mud can form bubble and be dispersed in inside slurry, using the position of bubble
Resistance effect improves dispersiveness and the stability of the burnt slurry of water-coal-slurry/water.In order to strengthen gas production, the organic of fermentation substrate can be increased
Matter content, such as by discarded object high for several contents of organic matter, waste liquid and mud mixed fermentation, it will produces more preferable effect.
In addition, agricultural product and food processing, starch/numerous industries such as sugar manufacture, wine brewing, meat packing, food and drink are produced in process of production
Go out substantial amounts of organic liquid waste.These organic liquid wastes include the microbial nutrition material such as polysaccharide, protein, lipid, such as do not close
Reason and timely process, not only pollute the environment, and also can degenerate the violent stench of generation.The present invention is by mud, organic liquid waste and coal/stone
Oil coke is mixed with fuel slurry, and during the storage of this mixture slurry, microorganism utilizes fermenting organic material simultaneously constantly
Output bubble, disperse, in slurry, reaches the purpose strengthening slurry dispersion and stability.Based on this, the present invention proposes utilization
Mud and organic liquid waste fermentation gas improve water-coal-slurry/water burnt slurry dispersiveness and the technology path of stability, can not only substantially change
Kind China water-coal-slurry/water burnt slurry quality, expands pulping raw material scope, mitigates the dependence to dispersant and stabilizer, accelerate water coal
Slurry/water burnt slurry popularization and application, and the recycling environmental contaminants such as mud, organic liquid waste effectively, realize change give up into
Precious purpose.
The present invention is made by blending and stirring organic liquid waste, mud, coal or petroleum coke and a small amount of additive
Mixture slurry, the organic substance that mud provides in microorganism necessary to fermentation, mud itself and organic liquid waste can conduct
Fermentation substrate, provides carbon source and nitrogen source for microorganism.In the storing process of this mixture slurry, the microorganism in mud utilizes
Organic substance in mud itself and organic liquid waste is fermented and is produced gas, forms bubble, bubble and slurry internal solids
Particle surface combines, and forms gas-solid association, and buoyance lift effect and the sterically hindered effect of bubble effectively prevent the coalescence of particle
Occur with sedimentation, thereby enhance dispersiveness and the stability of slurry.
Compared with prior art, the solution have the advantages that：
1st, in mud and organic liquid waste, fermentable produces bubble, during storage bubble disperse inside slurry,
Improve slurry dispersiveness and stability, method is easily realized, be easy to operate, pulping raw material is with low cost；
2nd, additive amount 40% can be reduced, significantly save slurrying cost.Compared with prior art, when decreasing slurrying
Necessary additive.
3rd, utilize the material slurrying such as mud, organic liquid waste it is achieved that twice laid, reduce the purpose of environmental pollution.
Brief description
Fig. 1 is the preparation flow schematic diagram of the burnt slurry of water-coal-slurry/water in the present invention.
Reference：1 petroleum coke/coal storage tank；2 organic liquid waste storage tanks；3 mud storage tanks；4 mixed pulp tanks；5 slurry cans.
Specific embodiment
Below example can make the technical staff of this professional skill field more fully understand the present invention, but not to appoint
Where formula limits the present invention.
As shown in figure 1, the present invention prepares bubble water-coal-slurry using mud and organic liquid waste fermentation or the method for the burnt slurry of water can
Improve the burnt slurry dispersion of water-coal-slurry/water and stability, specifically by organic liquid waste, mud, and coal or petroleum coke, and water-coal-slurry
Additive or water burnt slurry additive (according to actual conditions, its consumption can be adjusted), add in mixed pulp tank 4 in the lump
Blend and stir, be placed in standby in slurry can 5 after making mixture slurry.In the storing process of mixture slurry, in mud
Fermentable constantly produces gas and is internally formed bubble in slurry, and bubble is combined with solid particle, and disperse is in slurry
Inside, forms the burnt slurry of water-coal-slurry/water with polymolecularity and stability.
The present invention utilizes organic liquid waste to replace (or replacing most of) clear water preparation water-coal-slurry/burnt slurry of water, not only solves
The problem of environmental pollution that the discharge of organic liquid waste brings, organic substance contained therein can also increase the fermentable bottom in slurry
Thing concentration, the material not fallen by microbial digestion can also increase the calorific value of fuel slurry.Surface is contained in some organic liquid wastes
Bioactive agent composition, such as lignin, sulfonate, fatty alcohol esters etc., it is possible to reduce additive amount 40%, significantly save slurrying and become
This.
Described slurries additive agent or water burnt slurry additive are the burnt slurry of the water-coal-slurry/water that can be obtained by commercial mode
Additive, Main Function is the surface-active in order to improve coal/petroleum coke particles, reduces the viscosity of the burnt slurry of water-coal-slurry/water, simultaneously
Improve the stability of slurry.Slurries additive agent or water Jiao starch additive or the bag that additive can be single component
Mixed type additive containing dispersant and two kinds of compositions of stabilizer.
Embodiment 1：
(1) implementation
This example makes the burnt slurry of mud waste liquid water using petroleum coke, mud, starch factory waste liquid and a small amount of additive, right
Than the starch factory waste liquid and clear water difference on effect in slurrying.During slurrying, keep the mass ratio of petroleum coke, mud and additive not
Become, by changing the consumption of starch factory waste liquid (or clear water), prepared solid masses concentration be respectively 50%, 57% and 65% mixed
Close slurry, under three kinds of concentration, the quality proportioning of each component is respectively：1. 50% concentration slurry：Petroleum coke 47.8%, starch factory give up
Liquid (or clear water) 42.4%, mud 9.5%, additive 0.3%；2. 57% concentration slurry：Petroleum coke 54.4%, starch factory waste liquid
(or clear water) 34.3%, mud 10.9%, additive 0.4%；3. 65% concentration slurry：Petroleum coke 62.0%, starch factory waste liquid
(or clear water) 25.0%, mud 12.5%, additive 0.5%；After the proportioning of above-mentioned mud is by moisture content 80% conversion
Value.
The organic liquid waste adopting in this example is certain starch factory waste liquid, and its COD (COD) is 5910mg/L；Mud
Using certain paper mill sludge, moisture content is 84.8%；Petroleum coke is derived from Shanghai Jinshan petro-chemical corporation；Additive selects di-2-ethylhexylphosphine oxide
Sodium naphthalene sulfonate.
The one-tenth slurry viscosity of slurry utilizes rotary viscosity design determining, and the stability of slurry is surveyed using the syneresis rate after standing 7d
Fixed.
(2) test effect
Just made during slurry with standing 7d after slurry become slurry viscosity as shown in table 1.It can be seen in table 1 that with clear water slurrying phase
, using during starch factory waste liquid slurrying, becoming slurry viscosity lower slightly, this is probably due to contain lignin isoreactivity thing in starch factory waste liquid for ratio
Matter, can improve petroleum coke wettability of the surface.After slurry sealing and standing 7d, it is slightly agitated for, to uniform slurry, then
The secondary viscosity measuring slurry.In terms of the one-tenth slurry viscosity before and after standing, the one-tenth slurry viscosity of clear water slurrying is declined slightly, this mainly by
Mud component part in slurry is consumed by microbial activities, and mud Floe structure is subject to a certain degree of destruction, shows as
Become the reduction of slurry viscosity.By contrast, the slurry viscosity that becomes of starch factory waste liquid slurrying shows larger fall.This is mainly
Starch factory waste liquid slurry creates more micro-bubbles during standing, and bubble is attached to solid particles surface, enhances
The dispersiveness of particle, and bubble can play cushioning effect, the collision between its internal particle and rubbing when reducing slurry flowing
Wipe.
The pulping viscosity unit that table 1 has just been made during slurry and stood slurry after 7d:mPa·s
Table 2 lists and is utilized respectively starch factory waste liquid and clear water is made sludge water Jiao and starched and stand the syneresis rate after 7d.With
Clear water slurrying is compared, and the syneresis rate after starch factory waste liquid slurrying stands 7d is relatively low, shows the stability of starch factory waste liquid slurrying relatively
High.This is because, the burnt slurry of the sludge water that starch factory waste liquid is made creates more bubbles during standing, and bubble is attached to
Particle surface, on the one hand hinders the Hydrophobic agglomeration of particle, on the other hand plays castering action and prevents the gravity of particle to sink
Fall.
Table 2 starch factory waste liquid slurrying and clear water slurrying stand the syneresis rate contrast unit after 7d:%
To sum up, this example shows, compared to clear water slurrying, to show preferable particle dispersion using starch factory waste liquid slurrying
Property and stability.
Embodiment 2：
(1) implementation
Due to the water burnt slurry stability extreme difference being obtained using petroleum coke, comparatively speaking, under similarity condition, water-coal-slurry
Stability is far better, and therefore, this case study mud and organic liquid waste fermentation produce bubble to water burnt slurry stability
Impact effect.
The solid masses concentration of the mixture slurry being obtained in this example is 62%, and the quality proportioning of each raw material components is：Stone
Oil coke 59.1%, organic liquid waste 28.4%, mud 12.0% (converting by moisture percentage in sewage sludge 80%), additive 0.5%.
The organic liquid waste adopting in this example is taken respectively from winery, starch factory, meat-packing plant and food and drink waste water, they
COD (COD) be respectively 2480mg/L, 5910mg/L, 9220mg/L, 11900mg/L, different CODs
Waste liquid is expressed as W1, W2, W3, W4.Mud takes from Hangzhou seven lattice sewage treatment plant, is mechanical dehydration mud, after certainly fetching
Cord blood；Sludge suspension solid volatile matter content VSS is 41.12%, and moisture content is 82.42%；Petroleum coke is derived from Shanghai gold
Mountain petro-chemical corporation；Additive selects NDF slurries additive agent.
In order to simply and accurately describe the slurry sample being obtained in example, at this, some slurries are clearly indicated.
The burnt slurry of water of common clear water+petroleum coke preparation is named as S0, and the burnt slurry of water of clear water+mud+petroleum coke preparation is named as SS0, gives up
The burnt slurry of water of liquid+mud+petroleum coke preparation is named as WSS series, according to the difference of waste liquid and COD, be respectively designated as WSS1,
WSS2, WSS3, WSS4, correspond respectively to brewing wastewater (COD：2480mg/L), wastewater of starch factory (COD：5910mg/L), meat
Processing factory waste water (COD：9220mg/L), food and drink waste water (COD：11900mg/L).For ensureing the accuracy of experimental data, every kind of
Parallel three part all prepared by slurry sample, and the performance indications of following slurry are the mean value of three parts of parallel sample.
The slurry preparing is poured in the plastic containers with closure, after standing 7d, measures slurry by three kinds of methods
The static stability of sample：Bleed method, rod insert method, concentration difference method.
Bleed method：Stability is weighed with syneresis rate.The syneresis rate of slurry sample is defined as slurry and stands 7d in sealing container
Afterwards, the upper strata moisture that slurry separates out and the ratio of the total moisture contained by slurry.Syneresis rate is higher, and the degree of solid-liquid two-phase laminated flow is got over
Height, slurry stability is poorer.
Method inserted by rod：Under Gravitative Loads, rod iron (diameter:4mm, quality:20g) can be gradually inserted in slurry, hard when running into
During matter precipitation, rod iron will stop sinking.Slurry stability is weighed for index with penetrance.Penetrance refers within the 8min time, steel
Rod is subject to Gravitative Loads in the ratio of the height that will settle in vivo and slurries total height.Penetrance is higher, by body be internally formed hard
Matter precipitation is fewer, and slurry stability is better.
Concentration difference method, the slurry that airtight will stand 7d is divided into the quartering along short transverse, and four layers successively from the top down
For L1, L2, L3 and L4 layer, and measure the slurry mass concentration in each layer section.Concentration difference definition with orlop and the superiors
Poor for the Cmax of this slurry.Concentration difference is bigger, more uneven inside slurry, and slurry stability is poorer.
(2) test effect
Table 3 gives the burnt stability indicator syneresis rate starched after standing 7d of water of various organic liquid waste preparations and penetrates
Rate.
The light water burnt slurry S0 stability being prepared into using clear water is very poor, and after standing 7d, syneresis rate is up to 74.16%, steel
Excellent penetrance is only 39.94%.Standing the syneresis rate after 7d using the burnt slurry SS0 containing sludge water that clear water is made is 13.30%, wears
Rate improves to 79.03% thoroughly.When preparing the burnt slurry of water using organic liquid waste and mud, with the increase of waste liquid COD value, water burnt slurry analysis
Water rate reduces further, and rod iron penetrance improves further.When waste liquid COD value increases to 11900mg/L, the analysis of slurry WSS4
Water rate is reduced to 2.85%, and rod iron penetrance increases to 87.71%, and after illustrating to add organic liquid waste and mud, it is steady that water Jiao starches
The qualitative effect being greatly improved, serving stabilizer.
The burnt syneresis rate starched after standing 7d of the water of table 3 various organic liquid waste preparation and penetrance
Table 4 is the burnt solid masses concentration starching each layering of case study on implementation water of the present invention and Cmax is poor.List in table
The slurry concentration of four layerings and Cmax are poor from the top down for various slurries.It can be seen in table 1 that with organic liquid waste and mud system
The burnt slurry of water compare, the concentration difference of water burnt slurry tetra- layerings of SS0 that clear water and mud are obtained are larger, and Cmax difference is
20.3%.With the increase of organic liquid waste COD value, the concentration difference within slurry reduces, when waste liquid COD value increases to 11900mg/
During L, the Cmax difference of WSS4 is down to 2.97%, illustrates that water burnt slurry stability is greatly improved.
The various slurry of table 4 slurry concentration of four layerings and Cmax difference unit from the top down:%
Note：DmaxRepresent that Cmax is poor.
Embodiment 3：
(1) implementation
This example utilizes coal, mud, winery waste liquid (or clear water) and a small amount of additive to make mud waste liquid water coal
Slurry, investigates the impact to pulping effect of mud and winery waste liquid.
The coal adopting in this example is datong bitumite, and organic liquid waste takes from certain winery, and COD (COD) is
2480mg/L；Mud adopts Hangzhou seven lattice sewage plant residual active sludge, and moisture content is about 89%；Additive selects sulfomethylated lignin
Sour sodium.
The solid masses concentration of all slurries being obtained in this example is about 60%, and the quality proportioning of each component is：1. general
Logical clear water water-coal-slurry：Clear water 40.0%, coal 59.6%, additive 0.4%；2. mud clear water water-coal-slurry：Coal 57.6%, clear water
32.0%th, mud 10.0% (converting by moisture content 80%), additive 0.4%；3. mud waste water cwses：Coal 57.6%, wine
Brewery's waste liquid 32.0%, mud 10.0% (converting by moisture content 80%), additive 0.4%.
The one-tenth slurry viscosity of slurry utilizes rotary viscosity design determining, and the stability of slurry is surveyed using the syneresis rate after standing 7d
Fixed.
(2) test effect
Common clear water water-coal-slurry, mud clear water water-coal-slurry and mud waste water cwses are when just making slurry and after standing 7d
The one-tenth slurry viscosity of slurry is as shown in table 5.As seen from Table 5, compared with common water-coal-slurry, after adding mud pulping, the one-tenth of slurry
Slurry viscosity increases substantially.One-tenth slurry viscosity during the common firm pulping of water-coal-slurry is 112mPa s, adds mud to make mud clear water water
During coal slurry, slurry viscosity reaches 1297mPa s.Additionally, compared with mud clear water water-coal-slurry, using during winery waste liquid slurrying,
Slurry viscosity is become to be declined slightly, this is consistent with the result in embodiment 1, probably due to contain lignin etc. in winery waste liquid living
Property material, can improve the wetability of coal particle surface.
Generally, water-coal-slurry is not to produce just to use immediately, and often has certain storage time, because
This, this example is investigated the one-tenth slurry viscosity after slurry stands 7d.After slurry sealing and standing 7d, it is slightly agitated for,
To uniform slurry, measure the viscosity of slurry again.After clear water water-coal-slurry standing 7d, slurry precipitation is serious, and bottom precipitates firmly
Cannot be recovered to uniform slurry by stirring.After standing 7d, the one-tenth slurry viscosity of mud clear water water-coal-slurry is declined slightly, and this is mainly
During standing, the mud component part in slurry is consumed by microbial activities, and mud Floe structure is subject to a certain extent
Destruction, show as into the reduction of slurry viscosity.By contrast, the one-tenth slurry viscosity of mud winery waste water cwses show larger
Fall.Create more micro-bubbles mainly due to mud waste liquid slurry during standing, bubble is attached to
Solid particles surface, enhances the dispersiveness of particle, and bubble can play cushioning effect, reduce slurry flowing when its in
The intergranular collision in portion and friction.These results all with consistent in embodiment 1.
The pulping viscosity unit of 5 three kinds of water-coal-slurry of table slurry when just making slurry and after standing 7d:mPa·s
Table 6 lists the syneresis rate after three kinds of water-coal-slurry stand 7d.Common clear water water coal slurry stability is very poor, after standing 7d
Clearly, syneresis rate reaches 89.73% to separation of solid and liquid degree.After adding mud slurrying, the stability of slurry substantially improves, dirty
Syneresis rate after mud clear water water-coal-slurry stands 7d is down to 9.68%.This is distributed in mud floc sedimentation and forms stable space in slurry
Framework is relevant.Compared with mud clear water water-coal-slurry, the stability of mud waste water cwses is improved further, the bleed after standing 7d
Rate is 5.79%.A large amount of bubbles that this is produced during standing with mud waste water cwses are relevant, and bubble is attached to coal particle
Surface, on the one hand hinders the Hydrophobic agglomeration of particle, on the other hand plays the gravitational settling that castering action prevents particle.This
The result that one result is obtained with embodiment 1 is consistent.
Table 6 winery waste liquid slurrying and clear water slurrying stand the syneresis rate contrast unit after 7d:%
To sum up, this example demonstrates that compared to clear water water-coal-slurry, after adding mud slurrying, water-coal-slurry becomes slurry viscosity to increase,
But stability substantially improves.Compared to clear water slurrying, using during winery waste liquid slurrying, paste-forming properties and stability have all changed
Kind.
Embodiment 4：
(1) implementation
This example makes mud waste water cwses using coal, mud, food factory's waste liquid and a small amount of additive, obtains food
Dispersion and stablizing effect that product factory waste liquid is played in slurrying.
The coal adopting in this example is datong bitumite, and organic liquid waste takes from Hangzhou food processing factory, its COD
(COD) it is 4260mg/L；Mud adopts Hangzhou seven lattice sewage plant residual active sludge, and moisture content is about 89%；Additive is selected
NDF slurries additive agent.
The solid masses concentration of all slurries being obtained in this example is about 60%, during slurrying, keep slurry concentration and
The constant rate of coal, mud and food factory's waste liquid.Slurry numbering and proportioning are as follows：1. #1 slurry：Coal 57.6%, clear water 32.0%,
Mud 10.0% (converting by moisture content 80%), additive 0.4%；2. #2 slurry：Coal 57.6%, food factory's waste liquid 32.0%, dirt
Mud 10.0% (converting by moisture content 80%), additive 0.4%；3. #3 slurry：Coal 57.62%, food factory's waste liquid 32.01%, dirt
Mud 10.01% (converting by moisture content 80%), additive 0.36%；4. #4 slurry：Coal 57.69%, food factory's waste liquid 32.05%,
Mud 10.02% (converting by moisture content 80%), additive 0.24%.
It should be noted that above-mentioned #3 and #4 slurry in slurrying proportioning with #1 and #2 slurry slightly difference, this mainly due to
Additive amount difference causes.Due to additive amount seldom, therefore, other pulping raw materials being changed and being caused by its consumption
The change of consumption almost can be ignored.
The one-tenth slurry viscosity of slurry utilizes rotary viscosity design determining, and the stability of slurry is surveyed using the syneresis rate after standing 7d
Fixed.
(2) test effect
Just made during slurry with standing 7d after slurry become slurry viscosity as shown in table 7.As seen from Table 7, contrast #1 and #2 slurry,
It can be found that the identical result with embodiment 1 and 3, that is, under identical Pulping conditions, using food factory's waste liquid slurrying (#2 slurry)
Billy is low with the one-tenth slurry viscosity of clear water slurrying (#1 slurry), probably due to this is containing lignin isoreactivity material in food factory's waste liquid,
Coal wettability of the surface can be improved, this side reflects food factory's waste liquid and has certain viscosity reducing effect, slurrying can be played and divide
The effect of powder.When just making slurry, #3 with #4 slurry becomes slurry viscosity high than what #1 with #2 starched, and this is primarily due to additive amount and subtracts
Cause less.
Generally, water-coal-slurry is not to produce just to use immediately, and often has certain storage time, because
This, this example is investigated the one-tenth slurry viscosity after slurry stands 7d.After slurry sealing and standing 7d, it is slightly agitated for,
To uniform slurry, measure the viscosity of slurry again.In terms of the one-tenth slurry viscosity before and after standing, compared with #1 slurry, #2～#4 starches pulping
Viscosity decline becomes apparent from, and this is primarily due to #1 slurry and is made up of clear water, and #2～#4 slurry is made up of food plant wastewater.Clear water slurrying
One-tenth slurry viscosity be declined slightly, this is consumed by microbial activities mainly due to the mud component part in slurry, mud floc sedimentation
Structure is subject to a certain degree of destruction, shows as into the reduction of slurry viscosity.Food factory's waste liquid slurry creates during standing
More micro-bubbles, bubble is attached to solid particles surface, enhances the dispersiveness of particle, and bubble can play buffering
Effect, the collision between its internal particle and friction when reducing slurry flowing, thus the pulping of slurry that food factory's waste liquid is made
Viscosity shows larger fall.
Contrast #1 and #4 slurry, although #4 slurry employs lower additive amount, and (#4 additive amount subtracts compared to #1 slurry
Lack 40%), both are sufficiently close to the one-tenth slurry viscosity after standing 7d, and food factory's waste liquid that this adopts mainly due to #4 slurry is
Microbial activities provides more nutriments, creates more bubbles, the dispersion of bubble inside slurry during standing
Act on the larger one-tenth slurry viscosity reducing slurry, although #4 slurry is substantially high than #1 starches into slurry viscosity therefore when just making slurry,
But both become slurry viscosity close after standing 7d.It can be seen that the waste liquid slurrying of utilization food factory can be realized reducing the mesh of additive amount
's.
The pulping viscosity unit that table 7 has just been made during slurry and stood slurry after 7d:mPa·s
Table 8 lists the syneresis rate after #1～#4 slurry standing 7d.Compared with #1 slurry, the syneresis rate of #2～#4 slurry is relatively low, this
Being primarily due to the nutritional substrate concentration using during food factory's waste liquid slurrying, being available for fermentable inside slurry increases, micro- life
Thing activity creates more bubbles, improves the stability of sludge water-coal-slurry.Contrast #1 slurry, #3 and #4 slurry, it can be found that to the greatest extent
Pipe #3 and #4 slurry decreases the consumption of additive in slurrying, but the syneresis rate after standing 7d is also lower than #1 slurry, and this is due to #4
Using food factory's waste liquid preparation, the more bubble producing during slurry standing, the castering action of bubble improves slurry to slurry
Stability it is seen that the bubble being produced during storage using food factory's waste liquid slurrying can play the effect of stabilizer.
Syneresis rate contrast unit after table 8#1～#4 slurry standing 7d:%
To sum up, this example shows that using during food factory's waste liquid slurrying, slurry produces during storage compared to clear water slurrying
Give birth to more bubble, dispersion and stabilization can have been played, make water-coal-slurry hence with food factory's waste liquid and mud, coal etc.
When, it is possible to reduce the consumption of additive.
Separately, the stability experiment in various embodiments of the present invention employs 7 days syneresis rate of standing and layering two kinds of sides of concentration difference
Method judging, but to stand based on 7 days syneresis rate, a kind of this simply operation embodiment, similar time of repose is also
Permissible, such as 10 days, 30 days etc..
Claims (4)
1. using mud and organic liquid waste fermentation prepare the burnt slurry of bubble water-coal-slurry or water method it is characterised in that be by coal dust,
Mud, organic liquid waste and slurries additive agent blend, and being prepared into itself to ferment produces the water-coal-slurry of bubble；Or by oil
Jiao, mud, organic liquid waste and water burnt slurry additive blends, and being prepared into the burnt slurry of water that energy itself fermentation produces bubble；Each raw material group
Point mass concentration percentage relation be：Coal dust or petroleum coke powder 47.8-62.0%, press the mud 9.5- of moisture content 80% conversion
12.5%th, organic liquid waste 25.0-42.4%, slurries additive agent or water burnt slurry additive 0.3-0.5%.
2. method according to claim 1 is it is characterised in that pass through to adjust the interpolation of organic liquid waste in blending procedure
Amount, the mass concentration making the solid in the water-coal-slurry being finally obtained or the burnt slurry of water is 50-65%.
3. method according to claim 1, it is characterised in that described mud is the mud containing active microorganism, is
The residual active sludge producing during municipal sewage or Industrial Waste Water Treatments or its mechanical dehydration product.
4. the method according to claims 1 to 3 any one is it is characterised in that described organic liquid waste is containing micro-
The waste liquid of the nutriment needed for biological growth, is agricultural product and food processing, starch/sugar manufacture, make wine or meat packing row
Industry discharge in process of production containing polysaccharide, protein, lipids organic liquid waste；Or food and drink processing industry
Or the waste water of family's kitchen discharge.
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