CN102452783A - Compound agent for raising slurry concentration and method thereof - Google Patents
Compound agent for raising slurry concentration and method thereof Download PDFInfo
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- CN102452783A CN102452783A CN201010530056XA CN201010530056A CN102452783A CN 102452783 A CN102452783 A CN 102452783A CN 201010530056X A CN201010530056X A CN 201010530056XA CN 201010530056 A CN201010530056 A CN 201010530056A CN 102452783 A CN102452783 A CN 102452783A
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Abstract
The invention provides a compound agent for raising a slurry concentration, comprising the following two parts: a first part is at least one of lignosulfonate, humic acid salt, polyhydroxy carboxylate, methylnaphthalene sulfonate formaldehyde condensation product or naphthalene sulfonate; a second part is at least one of stearate, dodecyl benzene sulfonate, hexadecyl trimethyl ammonium bromide, fatty glyceride, sorbitan fatty acid, polysorbate, alkylolamides, lecithin, amino acid type or betaine type surfactant, wherein the mass ratio of the first part to the second part is 1: 1-1: 5. The invention also provides a method for raising the slurry concentration with the compound agent.
Description
Invention field
Improve the recombiner and the method that improves concentration of hydraulic mixture of concentration of hydraulic mixture when the present invention relates to prepare mud by mud and water.
Background technology
In recent years; Along with rapid economy development has driven quickening of urbanization process, the municipal sewage treatment amount is also increasing, and the amount of sludge that produces after the WWT increases thereupon; Be example only with small and medium-sized cities; The active sludge that sewage work produces reaches more than 100 tons every day, and this quantity is also in continuous growth, and metropolitan water treatment sludge quantity is just more.Contain a large amount of organic pollutants for example bacterium, virus, household chemicals etc. in the mud, also contain heavy metal contaminants sometimes.Because of the rapid increase of municipal sludge and can't dispose, brought serious pollution to The Surroundings in Cities, also be provided with very big obstacle to urban construction, water treatment sludge becomes one of bottleneck of urban development.Through test, the calorific value of the mud after the municipal sewage treatment reaches about 5MJ/kg, has very high calorific value, and recovered energy in the middle of the mud has not only solved problem of environmental pollution, and the heat of recovery can also generate electricity or produce LP steam, and mud is turned waste into wealth.
Traditional sludge incineration processing scheme mostly is earlier mud to be collected and dehydrated to add a large amount of combustiblematerialss again after the processing and ignite, and puts into incinerator and burns.This burning mode is lower because of sludge calorific value on the one hand; And moisture content is big, causes fire box temperature low, and insufficient callable heat that burns is also few; So also higher usually fuel blending burning with calorific values such as coal, refinery cokes; Also have the inadequate solid residue of more burning after the burning, contain a large amount of oxysulfides, oxynitride and dioxin toxic and harmful in the middle of the tail gas simultaneously, atmosphere, HUMAN HEALTH are all produced detrimentally affect.
The supercritical water oxidation technology of organic matters such as mud is a special property of utilizing water under supercritical state, to be had, makes organism and oxygenant in supercritical water, react thorough decomposing organic matter rapidly, finally generates CO
2Gas, the N element in the organic matter transforms for N under this condition
2And/or nitrate salt, the S element is converted into vitriol, and this technology has realized the harmless treatment of N, S element, is a kind of very ideal treatment technology.
Generally; Sewage work in sewage treatment process through the mud that produces behind the flocculating settling after band filter filters; Sludge concentration is about 20%; Among this paper sludge concentration is defined as the per-cent that mud dry weight accounts for the mud gross weight, wherein mud dry weight is meant the weight with dry-matter remaining behind this drying sludge to the anhydrous state.Above-mentioned resulting after filtering mud is paste, does not have flowability, and the dry-matter particulate broad particle distribution in the mud, and the organic as Mierocrystalline cellulose of part etc. is difficult to grinding.Further dilution and the grinding of the central processing of industry mud makes its particle diameter that reaches processing requirement, and has good flowability and stable, and then further handles with the form pumping entering process unit of mud again.
The mud that can not steady flow among the present invention and the mixture of water are called mud, and the mud that can steady flow and the mixture of water are called mud.
Common concentration of hydraulic mixture is 5-8%, among this paper concentration of hydraulic mixture is defined as the per-cent that the mud dry weight accounts for the mud gross weight, and wherein the mud dry weight is meant the weight that this mud is dried to dry-matter remaining behind the anhydrous state.Because solid matter granularity in the effect of flocculation agent and the mud of wider distribution; Concentration of hydraulic mixture is difficult to further improve; This makes that the central water ratio of mud is too high; The heat that mud produced of handling unit mass is very limited, is unfavorable for energy recovery and reuse, has also influenced the treatment capacity of mud unit time simultaneously.
Patent " CN1594514A sludge water-coal-slurry and manufacture craft thereof " has been mentioned technology and the method for utilizing mud, coal water slurry, three kinds of preparation of raw material sludge water-coal-slurries of recombiner; But do not spell out the concrete effect of recombiner in process for preparation, particularly do not specify using of raising mud slurrying concentration.
It is the method for feedstock production sludge petroleum charred slurry with mud, refinery coke, recombiner that patent " CN101054541A sludge petroleum charred slurry " has been mentioned a kind of.This patent does not clearly propose the concrete effect of recombiner equally, is particularly improving the effect of bringing into play on the concentration of hydraulic mixture.In addition, more than the raw material that relates to of two patents different with the present invention, there is some difference for the recombiner role.
In the actual mud processing treatment process, often hope to improve the treatment capacity of mud in the unit time, also will reduce facility investment simultaneously as far as possible, therefore, the concentration that improves solid matter in the mud is a kind of very effective method.General concentration of hydraulic mixture after milled processed is 5-8% in the industry, and this concentration is defined as the per-cent that solid matter (comprising colloidalmaterial) dry weight in the mud accounts for the mud gross weight.The viscosity of mud improves if concentration of hydraulic mixture further improves then, and mobile variation, stability also descend thereupon, and sedimentation is fast, is unfavorable for actual fed.
Summary of the invention
For overcoming the above problems, the present invention can improve the concentration of mud through adding a kind of special recombiner, and the good stability of mud, can keep good mobility, has a great deal of practical meanings.
The invention provides a kind of recombiner that is used to improve concentration of hydraulic mixture, it is made up of following two portions:
First part, it is selected from least a in sulfonated lignin, humate, polyhydroxycarboxyliacid acid salt, methyl naphthalene sulfonic acid salt formaldehyde condensation products or the naphthalenesulfonate;
Second section, it is selected from, and stearate, dodecylbenzene sulfonate, cetyl trimethylammonium bromide, glycerin fatty acid ester, lipid acid sorb are smooth, at least a in polysorbate, alkylol amide, Yelkin TTS, amino acid pattern or the betaine type amphoteric surfactant;
Wherein the mass ratio of first part and second section is 1: 1 to 1: 5.
The present invention also provides a kind of method that improves concentration of hydraulic mixture, comprises in mud, adding described recombiner.
The accompanying drawing summary
Fig. 1 is the indicative flowchart of method of the present invention.
Detailed Description Of The Invention
Recombiner of the present invention is made up of following two portions:
First part, it is selected from least a in sulfonated lignin, humate, polyhydroxycarboxyliacid acid salt, methyl naphthalene sulfonic acid salt formaldehyde condensation products or the naphthalenesulfonate; Be preferably selected from least a in sulfonated lignin or the methyl naphthalene sulfonic acid salt formaldehyde condensation products;
Second section; It is selected from least a in stearate, dodecylbenzene sulfonate, cetyl trimethylammonium bromide, glycerin fatty acid ester, lipid acid sorb smooth (being also referred to as sapn), polysorbate (being also referred to as tween), alkylol amide, Yelkin TTS, amino acid pattern or the betaine type amphoteric surfactant, is preferably selected from that dodecane sulfonate, lipid acid sorb are smooth, at least a in polysorbate or the alkylol amide;
Wherein the mass ratio of first part and second section is 1: 1 to 1: 5.
Above-mentioned all alternative materials are the prior art known substances, and the finished product of commercially available acquisition is also all arranged.Their property profile is following:
Sulfonated lignin are sub products of sulphite process papermaking wood pulp, are linear polymer.Sulfonated lignin dissolve in the aqueous solution of various pH values, are insoluble to organic solvent, and functional group is a phenolic hydroxyl.Be generally tawny pressed powder or sticky slurries.Good diffustivity is arranged, soluble in water.With sulphite papermaking wood pulp waste liquor through add concentrate after, with precipitation agents such as lime, calcium chloride, monobasic lead acetates, pass through technology such as deposition, separation, oven dry and make lignosulphonate solid.
Humate is meant the metal-salt or the ammonium salt of humic acid.Wherein humic acid is the plant-animal remains, mainly is the remains of plant, through decomposition and the conversion of mikrobe, and a series of chemical process and a type organic matter that accumulates.It is the polymeric organic acid that is made up of aromatic series and multiple functional group thereof, has functions such as good physiologically active and absorption, complexing, exchange.It extensively is present in soil, lake, river, ocean and peat (claiming the peat composed of rotten mosses again), brown coal, the weathered coal.Common humate is sodium humate, potassium humate and ammonium humate.
Polyhydroxycarboxyliacid acid salt, naphthalenesulfonate, stearate, dodecylbenzene sulfonate, cetyl trimethylammonium bromide, glycerin fatty acid ester, amino acid pattern or betaine type amphoteric surfactant all have definite definition in various TMs and dictionary, repeat no more at this.
Alkylol amide (being commonly called as 6501), its molecular formula is RCON (C
2H
4OH)
2Mainly form by lipid acid and hydramine condensation; Product is faint yellow glop, belongs to nonionogenic tenside, has the foamy effect of detergent solutions such as stabilization and increase shampoo; Tangible thickening power and certain conditioning and anti-static stability, anti-luring property are arranged, and are one of daily use chemicals industry important source material.
The general formula of sulfonated alkyl naphathalene formaldehyde condensation products is (R-C
10H
6)
m(CH
2-)
n(SO
3M)
p, wherein R is an alkyl, for example methyl, ethyl, propyl group, butyl etc., and M is a metals ion, m, n, p are positive integer.This compounds is dispersion agent or the tensio-active agent of using always, and its advantage is to be that solid, whipability are little under good dispersivity, the normal temperature, and is stable in hard water and acid-base medium, also has certain wettability concurrently.
Yelkin TTS belongs to a kind of mixture, is the one group of filemot oil material that is present among animal vegetable tissue and the yolk, and its constituent comprises phosphoric acid, choline, lipid acid, glycerine, glycolipid, tri-glyceride and phosphatide.Yelkin TTS is described as and protein, VITAMINs " the 3rd nutrient substance " arranged side by side.Yelkin TTS still is the synonym of pure phosphatidylcholine sometimes.
Lipid acid sorb smooth (being also referred to as sapn) performance: these article are white or little yellow wax, plates, powder shape (>=100 order).Be dissolved in ethanol, ether, methyl alcohol and the tetracol phenixin of heat; Be slightly soluble in ether, sherwood oil, can be scattered in the hot water; Be w/o type emulsifying agent, have very strong emulsification, dispersion, lubrication, can use with various surfactants; Especially adapt to and Tween-60 (T-60), composite result of use is better.HLB (hydrophilic-lipophilic balance) value 4.7, fusing point 52-57 ℃.
Polysorbate (being also referred to as tween) tween is the transliteration of (TWEEN), also is emulsifying agent Tween, is the condenses of sapn (Span, Span) and oxyethane, is one type of triton.
Dodecylbenzene sulfonate for example calcium dodecylbenzene sulphonate has good emulsifying property, is the important component part of the mixed emulsifier used of the various agricultural chemicals of preparation.Sodium alkyl benzene sulfonate is a neutral, and is responsive to the water hardness, is difficult for oxidation, and foaming power is strong, and detersive power is high, is prone to and various additive compounds, and cost is lower, and synthesis technique is ripe, and Application Areas is extensive, is very outstanding AS.Alkyl benzene sulphonate(ABS) is received to particulate fouling; Albumen dirt and oily dirt have significant clean effect, and good especially to the cleaning function of particulate fouling on the natural fiber, detersive power strengthens with the rising of wash temperature; Effect to the albumen dirt is higher than nonionogenic tenside, and foam is abundant.
The method of raising concentration of hydraulic mixture of the present invention comprises and in mud, adds recombiner of the present invention.
Be that example is explained method of the present invention now with Fig. 1.
Among Fig. 1, a1 is a water, and a2 is the mud as raw material, and b1 is that product mud, b2 are the waste material on screen cloth upper strata.
1 is transfer system, and 2 is mixing tank, and 3 is pump, and 4 is shredder, and 5 is sieve shaker, and 6 is surge tank, and 7 is that pump, 8 is mud tank.
As shown in the figure, raw material a1 and a2 are transported to mixing tank 2 according to a certain percentage, after stirring; Be delivered to shredder 4 by pump 3 and grind, the mud slurry after the grinding is after sieve shaker 5 filters, and the filter screen upper strata is the thicker waste material b2 of particle diameter; Lower floor's mud gets into surge tank 6, and is delivered to mud tank 8 by pump 7, prepares the sludge slurry b1 of processing requirement; This mud b1 can send to and carry out subsequent disposal, for example with supercritical water it is carried out oxide treatment.
Recombiner of the present invention can add before or after grinding steps or in the process of lapping.
The quality of the recombiner that is added among the present invention accounts for 0.5 ‰ to 10 ‰ of quality of mud fluid, and preferred 0.8 ‰ to 5 ‰.
Mud used in the present invention can be disposed by various mud and water.These mud can be from domestic sludge, agriculture mud or industrial sludge.
Abovely specific embodiments of the present invention is described, but those skilled in the art obviously it will also be appreciated that other embodiment in claim scope of the present invention with reference to accompanying drawing.
Embodiment
Mud process for preparation in the present embodiment such as above said to Fig. 1.
The character of use therein raw sludge is seen table 1.
The essential property of table 1 raw sludge
The character of the concentration of hydraulic mixture among each embodiment, recombiner kind and consumption and the mud that makes is as shown in table 2.Wherein the stability of mud was represented by the settling time.The measuring method of settling time is following: the mud of weighing certain mass places beaker; Leave standstill for some time; Take out the lower sediment thing; This sedimentary quality of weighing after drying is anhydrated just is defined as the settling time for 50% o'clock time of repose of solid masses contained in the mud with this throw out quality.Settling time is long more, explains that the stability of mud is good more.
Table 2 embodiment 1-4
* the recombiner ratio refers to the mass ratio of first part and second section.
Table 3 embodiment 5-8
Table 4 embodiment 9-12
Table 5 embodiment 13-16
Table 6 embodiment 17-20
Table 7 embodiment 21-24
Table 8 embodiment 25-28
Table 9 embodiment 29-32
Table 10 embodiment 33-36
The present invention adds adjacent twice feed space that settling time behind the recombiner wants to guarantee that mud can be in subsequent processing steps at a distance from interior not sedimentation; That is: in subsequent processing device; After the sewage sludge feed; Can guarantee after this charging of mud that until dispose (next time before the charging), sedimentation does not take place mud.It is thus clear that, add recombiner of the present invention after, not only concentration of hydraulic mixture can improve several times, and the settling time obviously prolong, explain that the stability of mud also is significantly improved, this will help the subsequent processing steps of mud.
Claims (11)
1. recombiner that is used to improve concentration of hydraulic mixture, it is made up of following two portions:
First part, it is selected from least a in sulfonated lignin, humate, polyhydroxycarboxyliacid acid salt, methyl naphthalene sulfonic acid salt formaldehyde condensation products or the naphthalenesulfonate;
Second section; It is selected from that stearate, dodecylbenzene sulfonate, cetyl trimethylammonium bromide, glycerin fatty acid ester, lipid acid sorb are smooth, at least a in polysorbate, alkylol amide, Yelkin TTS, amino acid pattern or the betaine type amphoteric surfactant
Wherein the mass ratio of first part and second section is 1: 1 to 1: 5.
2. the recombiner of claim 1, wherein first part is selected from least a in sodium lignosulfonate or the methyl naphthalene sulfonate formaldehyde condensate; Second section is selected from that sodium laurylsulfonate, lipid acid sorb are smooth, at least a in polysorbate or the alkylol amide.
3. the recombiner of claim 1, wherein first part is selected from sulfonated lignin, and second section is selected from dodecylbenzene sulfonate or polysorbate, perhaps is selected from the smooth mixture with polysorbate of lipid acid sorb.
4. the recombiner of claim 1, wherein first part is selected from methyl naphthalene sulfonic acid salt formaldehyde condensation products, and it is smooth that second section is selected from the lipid acid sorb.
5. the recombiner of claim 1, wherein first part is selected from naphthalenesulfonate, and second section is selected from cetyl trimethylammonium bromide.
6. the recombiner of claim 1, wherein first part is selected from humate, and second section is selected from glycerin fatty acid ester or is selected from the mixture of Yelkin TTS and alkylol amide.
7. the recombiner of claim 1, wherein first part is selected from polyhydroxycarboxyliacid acid salt, and second section is selected from alkylol amide.
8. the recombiner of claim 1, wherein first part is selected from the mixture of sodium naphthalene sulfonate and sodium lignosulfonate, and second section is selected from the smooth mixture with polysorbate of lipid acid sorb.
9. method that improves concentration of hydraulic mixture comprises the recombiner that in mud, adds among the claim 1-8 each.
10. the method for claim 9, wherein the quality of recombiner accounts for 0.5 ‰ to 10 ‰ of quality of mud fluid.
11. the method for claim 9, wherein the quality of recombiner accounts for 0.8 ‰ to 5 ‰ of quality of mud fluid.
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| CN201010530056.XA CN102452783B (en) | 2010-11-03 | 2010-11-03 | Compound agent for raising slurry concentration and method thereof |
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| CN201010530056.XA CN102452783B (en) | 2010-11-03 | 2010-11-03 | Compound agent for raising slurry concentration and method thereof |
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| CN102452783B CN102452783B (en) | 2015-05-13 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103540374A (en) * | 2012-07-09 | 2014-01-29 | 王庆 | Modified sludge coal slurry and preparation method thereof |
| CN106430880A (en) * | 2016-11-23 | 2017-02-22 | 李军 | Oil-containing sludge treating agent as well as preparation method and using method thereof |
| CN107601803A (en) * | 2017-09-18 | 2018-01-19 | 中海油能源发展股份有限公司 | A kind of material hardening and tempering method of supercritical water oxidation processing sludge |
| CN111534341A (en) * | 2020-04-24 | 2020-08-14 | 梵境新能源科技(浙江)有限公司 | Method for utilizing and disposing waste activated carbon and waste organic solvent in synergy harmless resources |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101157530A (en) * | 2007-09-21 | 2008-04-09 | 北京交通大学 | Nano modified lignin mahogany sulfonate concrete water reducer and preparation method thereof |
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2010
- 2010-11-03 CN CN201010530056.XA patent/CN102452783B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101157530A (en) * | 2007-09-21 | 2008-04-09 | 北京交通大学 | Nano modified lignin mahogany sulfonate concrete water reducer and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 尹芪等: "混凝土减水剂应用于陶瓷泥浆制备的初步研究", 《中国陶瓷》 * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103540374A (en) * | 2012-07-09 | 2014-01-29 | 王庆 | Modified sludge coal slurry and preparation method thereof |
| CN103540374B (en) * | 2012-07-09 | 2017-12-22 | 任相坤 | A kind of modified sewage sludge coal slurry and preparation method thereof |
| CN106430880A (en) * | 2016-11-23 | 2017-02-22 | 李军 | Oil-containing sludge treating agent as well as preparation method and using method thereof |
| CN107601803A (en) * | 2017-09-18 | 2018-01-19 | 中海油能源发展股份有限公司 | A kind of material hardening and tempering method of supercritical water oxidation processing sludge |
| CN111534341A (en) * | 2020-04-24 | 2020-08-14 | 梵境新能源科技(浙江)有限公司 | Method for utilizing and disposing waste activated carbon and waste organic solvent in synergy harmless resources |
| CN111534341B (en) * | 2020-04-24 | 2021-10-26 | 梵境新能源科技(浙江)有限公司 | Method for utilizing and disposing waste activated carbon and waste organic solvent in synergy harmless resources |
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