CN108947201A - A kind of sludge treating agent and application - Google Patents
A kind of sludge treating agent and application Download PDFInfo
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- CN108947201A CN108947201A CN201811010055.5A CN201811010055A CN108947201A CN 108947201 A CN108947201 A CN 108947201A CN 201811010055 A CN201811010055 A CN 201811010055A CN 108947201 A CN108947201 A CN 108947201A
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- Prior art keywords
- sludge
- inorganic agent
- jacket
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- mass ratio
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- 239000010802 sludge Substances 0.000 title claims abstract description 133
- 239000003795 chemical substances by application Substances 0.000 title claims abstract description 63
- 229910001385 heavy metal Inorganic materials 0.000 claims abstract description 22
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 20
- 239000010801 sewage sludge Substances 0.000 claims abstract description 13
- 239000000843 powder Substances 0.000 claims description 41
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 30
- ROOXNKNUYICQNP-UHFFFAOYSA-N ammonium persulfate Chemical compound [NH4+].[NH4+].[O-]S(=O)(=O)OOS([O-])(=O)=O ROOXNKNUYICQNP-UHFFFAOYSA-N 0.000 claims description 20
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 18
- 239000006228 supernatant Substances 0.000 claims description 18
- 239000012153 distilled water Substances 0.000 claims description 14
- 239000000047 product Substances 0.000 claims description 11
- 239000007787 solid Substances 0.000 claims description 11
- 231100000331 toxic Toxicity 0.000 claims description 11
- 230000002588 toxic effect Effects 0.000 claims description 11
- HRPVXLWXLXDGHG-UHFFFAOYSA-N Acrylamide Chemical compound NC(=O)C=C HRPVXLWXLXDGHG-UHFFFAOYSA-N 0.000 claims description 10
- LZZYPRNAOMGNLH-UHFFFAOYSA-M Cetrimonium bromide Chemical compound [Br-].CCCCCCCCCCCCCCCC[N+](C)(C)C LZZYPRNAOMGNLH-UHFFFAOYSA-M 0.000 claims description 10
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 10
- 229910001870 ammonium persulfate Inorganic materials 0.000 claims description 10
- 229960000935 dehydrated alcohol Drugs 0.000 claims description 10
- 230000001376 precipitating effect Effects 0.000 claims description 10
- 239000012265 solid product Substances 0.000 claims description 10
- 238000003756 stirring Methods 0.000 claims description 10
- 238000001914 filtration Methods 0.000 claims description 9
- 238000000227 grinding Methods 0.000 claims description 9
- 229910052757 nitrogen Inorganic materials 0.000 claims description 9
- 238000006243 chemical reaction Methods 0.000 claims description 8
- 230000005484 gravity Effects 0.000 claims description 6
- 238000001816 cooling Methods 0.000 claims description 5
- 239000002244 precipitate Substances 0.000 claims description 5
- 230000001580 bacterial effect Effects 0.000 claims description 3
- 230000009467 reduction Effects 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 20
- 239000002893 slag Substances 0.000 abstract description 16
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 239000002699 waste material Substances 0.000 abstract description 6
- 230000008569 process Effects 0.000 abstract description 5
- 241000894006 Bacteria Species 0.000 abstract description 4
- 238000012545 processing Methods 0.000 abstract description 3
- 239000002994 raw material Substances 0.000 abstract description 3
- 231100000584 environmental toxicity Toxicity 0.000 abstract 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 10
- 229910052759 nickel Inorganic materials 0.000 description 9
- 229910052725 zinc Inorganic materials 0.000 description 9
- 239000011701 zinc Substances 0.000 description 9
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 8
- 244000061456 Solanum tuberosum Species 0.000 description 8
- 235000002595 Solanum tuberosum Nutrition 0.000 description 8
- 229910052785 arsenic Inorganic materials 0.000 description 8
- 229910052793 cadmium Inorganic materials 0.000 description 8
- 229910052804 chromium Inorganic materials 0.000 description 8
- 229910052802 copper Inorganic materials 0.000 description 8
- 239000010949 copper Substances 0.000 description 8
- 229910052745 lead Inorganic materials 0.000 description 8
- 239000011651 chromium Substances 0.000 description 7
- 239000011133 lead Substances 0.000 description 7
- 230000009466 transformation Effects 0.000 description 6
- 229920002472 Starch Polymers 0.000 description 5
- 238000002360 preparation method Methods 0.000 description 5
- 235000019698 starch Nutrition 0.000 description 5
- 239000008107 starch Substances 0.000 description 5
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000005189 flocculation Methods 0.000 description 4
- 230000016615 flocculation Effects 0.000 description 4
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N iron oxide Inorganic materials [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- AMWRITDGCCNYAT-UHFFFAOYSA-L manganese oxide Inorganic materials [Mn].O[Mn]=O.O[Mn]=O AMWRITDGCCNYAT-UHFFFAOYSA-L 0.000 description 4
- PPNAOCWZXJOHFK-UHFFFAOYSA-N manganese(2+);oxygen(2-) Chemical class [O-2].[Mn+2] PPNAOCWZXJOHFK-UHFFFAOYSA-N 0.000 description 4
- 239000001913 cellulose Substances 0.000 description 3
- 229920002678 cellulose Polymers 0.000 description 3
- 235000010980 cellulose Nutrition 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- 229920001592 potato starch Polymers 0.000 description 3
- 229920001661 Chitosan Polymers 0.000 description 2
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 2
- 230000000844 anti-bacterial effect Effects 0.000 description 2
- 239000006227 byproduct Substances 0.000 description 2
- -1 cellulose Chemical class 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- DNJIEGIFACGWOD-UHFFFAOYSA-N ethanethiol Chemical compound CCS DNJIEGIFACGWOD-UHFFFAOYSA-N 0.000 description 2
- 239000000706 filtrate Substances 0.000 description 2
- 229930003935 flavonoid Natural products 0.000 description 2
- 150000002215 flavonoids Chemical class 0.000 description 2
- 235000017173 flavonoids Nutrition 0.000 description 2
- 235000013305 food Nutrition 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000005012 migration Effects 0.000 description 2
- 238000013508 migration Methods 0.000 description 2
- 229920005615 natural polymer Polymers 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 230000006641 stabilisation Effects 0.000 description 2
- 238000011105 stabilization Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- UMGDCJDMYOKAJW-UHFFFAOYSA-N thiourea Chemical compound NC(N)=S UMGDCJDMYOKAJW-UHFFFAOYSA-N 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 102000014914 Carrier Proteins Human genes 0.000 description 1
- 108010078791 Carrier Proteins Proteins 0.000 description 1
- 102000002322 Egg Proteins Human genes 0.000 description 1
- 108010000912 Egg Proteins Proteins 0.000 description 1
- 102000011931 Nucleoproteins Human genes 0.000 description 1
- 108010061100 Nucleoproteins Proteins 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 235000009754 Vitis X bourquina Nutrition 0.000 description 1
- 235000012333 Vitis X labruscana Nutrition 0.000 description 1
- 240000006365 Vitis vinifera Species 0.000 description 1
- 235000014787 Vitis vinifera Nutrition 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 229930013930 alkaloid Natural products 0.000 description 1
- 150000003797 alkaloid derivatives Chemical class 0.000 description 1
- 150000001412 amines Chemical class 0.000 description 1
- 150000001413 amino acids Chemical class 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- BDOSMKKIYDKNTQ-UHFFFAOYSA-N cadmium atom Chemical compound [Cd] BDOSMKKIYDKNTQ-UHFFFAOYSA-N 0.000 description 1
- 235000014633 carbohydrates Nutrition 0.000 description 1
- 150000001720 carbohydrates Chemical class 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 235000013339 cereals Nutrition 0.000 description 1
- 239000000701 coagulant Substances 0.000 description 1
- 239000002361 compost Substances 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000008394 flocculating agent Substances 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 229910017053 inorganic salt Inorganic materials 0.000 description 1
- RBTARNINKXHZNM-UHFFFAOYSA-K iron trichloride Chemical compound Cl[Fe](Cl)Cl RBTARNINKXHZNM-UHFFFAOYSA-K 0.000 description 1
- RUTXIHLAWFEWGM-UHFFFAOYSA-H iron(3+) sulfate Chemical compound [Fe+3].[Fe+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O RUTXIHLAWFEWGM-UHFFFAOYSA-H 0.000 description 1
- 229910000360 iron(III) sulfate Inorganic materials 0.000 description 1
- 210000002429 large intestine Anatomy 0.000 description 1
- 150000002632 lipids Chemical class 0.000 description 1
- 229920002521 macromolecule Polymers 0.000 description 1
- 239000000395 magnesium oxide Substances 0.000 description 1
- 230000011987 methylation Effects 0.000 description 1
- 238000007069 methylation reaction Methods 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 150000007523 nucleic acids Chemical class 0.000 description 1
- 102000039446 nucleic acids Human genes 0.000 description 1
- 108020004707 nucleic acids Proteins 0.000 description 1
- 150000007524 organic acids Chemical class 0.000 description 1
- 210000004681 ovum Anatomy 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 230000003071 parasitic effect Effects 0.000 description 1
- 239000003375 plant hormone Substances 0.000 description 1
- 239000002574 poison Substances 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- 230000000607 poisoning effect Effects 0.000 description 1
- 229920002401 polyacrylamide Polymers 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 235000013573 potato product Nutrition 0.000 description 1
- 238000011085 pressure filtration Methods 0.000 description 1
- 102000004169 proteins and genes Human genes 0.000 description 1
- 108090000623 proteins and genes Proteins 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 230000001954 sterilising effect Effects 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
- C02F11/14—Treatment of sludge; Devices therefor by de-watering, drying or thickening with addition of chemical agents
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/20—Heavy metals or heavy metal compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/06—Sludge reduction, e.g. by lysis
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Treatment Of Sludge (AREA)
Abstract
The invention discloses a kind of sludge treating agents comprising inorganic agent A and inorganic agent B, which is that inorganic agent A and B are prepared using jacket slag, to handle sludge, to reduce harmful components in moisture percentage in sewage sludge and sludge；The addition of sludge treating agent A can significantly kill the bacterium in sludge, and reduce sludge water content；Inorganic agent B be added can heavy metal in stabilized sludge, weaken the environmental toxicity of heavy metal, while the release that water is combined in sludge can also be promoted, so that moisture percentage in sewage sludge significantly reduces；Simple in production process operation of the invention is easy, and raw material is simple and easy to get, and production cost is low, and sanitary waste is made full use of to prepare sludge treating agent, achievees the purpose that the treatment of wastes with processes of wastes against one another；The present invention can significantly improve the dewatering of sludge, and the environmental toxicity of sludge can be greatly lowered, and improve the feasibility of sludge subsequent processing and disposition, and lay a good foundation for the comprehensive utilization of sludge.
Description
Technical field
The invention belongs to sludge reduction and hamlessizing technology technology fields, while belonging to the recycling of house refuse
Application field, and in particular to a kind of sludge treating agent being prepared using jacket is used for Treatment of Sludge and place
It sets, to reduce moisture percentage in sewage sludge and sludge toxic.
Background technique
China is the maximum country of potato production as populous nation, nearly hundred million tons of yield, the fourth-largest as the whole world
Cereal crops, potato be used to produce various staple foods and non-staple foodstuff.In potato process, a large amount of potato can be generated
Skin, there are about the generations of 0.1 ton of skin slag for 1 ton of potato starch of every production.With the rapid development of potato starch industry, by-product
The yield of jacket powder is gradually increased.Contain a certain amount of starch, various carbohydrates such as cellulose, grape in jacket powder
Sugar；Various lipids such as phosphatide, fat；Various protein such as nucleoprotein, carrier protein and countless nucleic acid, amino acid are inorganic
Salt, plant hormone, organic acid, alkaloid.Currently, the producing level of jacket powder is lower, it is largely taken as house refuse
Abandon, the jacket slag of only 10%-15% for fermenting, compost etc., therefore, a large amount of of jacket slag generate and lower
Handling rate, bring large effect, and the high-moisture percentage of jacket slag and certain content of starch to environment, be easy grow
Raw a large amount of microorganisms, it is easily putrid and deteriorated, generate stench；It is higher in view of the ingredient utilizability of jacket powder, such as content of starch
It is higher, there is fibre structure, containing the Flavonoid substances etc. with sterilizing function, therefore, if serial of methods can be passed through by horse
Bell potato skin powder is used for related fields, and the resource utilization to jacket powder is had great significance with environment is improved.
Currently, the yield of municipal sludge is huge, moisture content is higher, and the moisture percentage in sewage sludge of factory is generally 80% or so, together
When, the harmful components in sludge are also more, such as parasitic ovum, germ, heavy metal.The main disposal options of municipal sludge include
Landfill, burning, land use etc., domestic main disposal options are landfills at present.And since sludge moisture content is larger, and wherein
Containing there are many toxic component, influence that can be totally unfavorable to soil reclamation after landfill, stench diffusion, transmission, pollution
Underground water, heavy metal accumulation and migration etc..Therefore, it is handled before sludge treatment, to reduce its moisture content and murder by poisoning
Property, it is very important.Currently, the technique of sludge dewatering has graduallyd mature, 106542718 A of patent application CN utilizes sheet frame
Filter press-type dehydration equipment pre-processes sludge by addition high polymer coagulant and flocculation aid, sludge is greatly improved
Solid content.Patent application 201510208090.8 is by bodied ferric sulfate, magnesia, ferric trichloride, chitosan, polyacrylamide
After amine, diatomite are sufficiently mixed, a kind of composite sludge dehydrant has been made, moisture percentage in sewage sludge can be down to 60% or less.And
Reduction for sludge toxic reduces the technique in terms of its toxic and but sends out since complicated component toxic in sludge is various
It opens up slower.106430875 A of patent application patent CN discloses a kind of method of heavy metal stabilizer, this method pass through by
Chitosan carboxy methylation, is compounded with active carbon afterwards, then is grafted thiocarbamide, and a kind of composite drug is prepared, and can stablize dirt
Heavy metal cadmium, nickel and zinc in mud.With continuing to optimize for sludge treatment technique, the treatment effect of sludge also obtains biggish mention
It rises, but in general, all there is complicated for operation, energy and material consumption is high, effect is unstable, expense of raw materials expends higher lack
Point.
Summary of the invention
The purpose of the present invention is to provide a kind of sludge treating agents comprising inorganic agent A and inorganic agent B；The inorganic agent A
It is by jacket crushing grinding at powdered, at 70-80 DEG C, sodium hydroxide solution is added and is carried out in jacket powder
It is gelatinized 0.5-1h, after cetyl trimethylammonium bromide solution is then added drop-wise to gelatinization by several times with the speed of 1-2mL/min
It in jacket powder, being modified at 50-70 DEG C, after modified 1-3h, is cooled to room temperature, product pours into dehydrated alcohol, into
Row precipitating embrittlement, filtering, solid product are placed at 60 DEG C and dry, and inorganic agent A is made；The inorganic agent B is to break jacket
Then breakdown mill is added distilled water, and be passed through nitrogen, 1-2h is gelatinized at 70-80 DEG C, ammonium persulfate is then added at powdered
Solution after reacting 8-12min, then is added acrylamide solution with dropper and carries out graft reaction 2-4h, after the reaction was completed, cooling,
Product is poured into dehydrated alcohol, precipitating embrittlement, filtering are carried out, solid product is placed at 60 DEG C and dries, and inorganic agent B is made；Place
It is continually fed into nitrogen in reason agent B preparation process, to exclude interference of the oxygen to polymerization reaction.
The concentration of the sodium hydroxide solution is 0.1-0.2mol/L, and the volume mass ratio with jacket powder is
10mL-20mL:1g。
The mass ratio of the cetyl trimethylammonium bromide and jacket powder is 1:25-1:200, in use, first
It is dissolved with distilled water.
The mass ratio of the ammonium persulfate and jacket powder is 1:200-1:50, acrylamide and jacket powder
Mass ratio be 1:200-1:25, in use, first dissolved with distilled water, be then added dropwise and be added with the speed of 1-2mL/min.
The present invention is another object is that above-mentioned sludge treating agent is applied in reducing moisture percentage in sewage sludge and sludge toxic, i.e.,
Inorganic agent A is added in the sludge after gravity precipitates, stirs quiet heavy 10-30min after 5-10min at normal temperature；Again to quiet heavy
Inorganic agent B is added in sludge afterwards, after stirring 5-10min at normal temperature, quiet heavy 10-30min；Filtering, it is lower to obtain moisture content
Sludge cake and sludge supernatant, reaching reduces bacterial content in mud cake and supernatant, reduce content of beary metal in supernatant,
The purpose of heavy metal in stabilized sludge mud cake.
The mass ratio of the inorganic agent A and dry solids in sludge is 1 ‰ -10 ‰, inorganic agent B and dry solids in sludge
Mass ratio be 2 ‰ -20 ‰.
The present invention utilizes the jacket powder finished product prepared through distinct methods, Combined Treatment is carried out to sludge, to reduce dirt
Water content and stable wherein heavy metal in mud；This method can promote the release that water is combined in sludge, reduce moisture percentage in sewage sludge,
The bacterium in sludge can also be reduced simultaneously, the concentration of the stronger heavy metal of migration in sludge is reduced, to weaken sludge
Toxic；This method promotes the comprehensive utilization of jacket powder, while reducing the processing cost of disposal of sludge, promotes sludge
Innoxious and minimizing.
The quantity of excrement colibacillus group in sludge is measured according to relevant criterion, heavy metal in sludge supernatant and sludge cake
The content accounting of heavy metals of different forms in content and sludge cake analyzes bacterial content variation and heavy metal in sludge
Changes of contents.Meanwhile with the moisture content of gravimetric detemination sludge cake.
Advantages of the present invention and technical effect:
Jacket powder derives from potato product producting factory in the present invention, is potato starch and staple and non-staple food production
By-product in the process contains a large amount of starch, cellulose, Flavonoid substances in jacket slag, itself has natural polymer
Minor structure is to prepare the very good material of natural macromolecule flocculating agent, and its own is with bactericidal effect, and being used to prepare has flocculation
There is a possibility that larger with the natural polymer sludge treating agent of bactericidal effect；Meanwhile existing in jacket slag a large amount of
Cellulose and starch form long-chain molecule, attachment current potential can not only be provided for mud granule after modification, moreover it is possible to
Enough chelating volumes sweep heavy metal, make heavy metal stabilization；
Using the effective component and structure in jacket powder, it is modified processing to it, is prepared with flocculation and kills
The inorganic agent A of bacterium function and with flocculation and stabilizing heavy metal inorganic agent B, the two is used to handle sludge, can be effective
Promote the release for combining water in sludge, reduces moisture percentage in sewage sludge, while the bacterium in sludge can also be killed, and reduce on sludge
Unstable heavy metal stabilization is reduced the poison of sludge by the content of beary metal in clear liquid while reducing moisture percentage in sewage sludge
Evil property；This method provides a feasible outlet for the comprehensive utilization of house refuse jacket powder, while also effectively facilitating
The minimizing of sludge and innoxious, for the recycling of sludge provides basis.
The raw material that this method uses is sanitary waste, reduces material consumption；Meanwhile the preparation method of inorganic agent A and B are simple
Easy, easy to operate, production cost is low, embodies the environmental protection concept of the treatment of wastes with processes of wastes against one another.
Specific embodiment
Below by embodiment, invention is further described in detail, but the scope of the present invention is not limited in described
Hold.
Following embodiment untreated sludges are derived from sewage treatment plant's gravity concentration tank, by untreated sludge-
Pressure filtration under 0.075MPa, the moisture content for obtaining sludge cake is 96.3%, and excrement large intestine in sludge supernatant and sludge cake
The quantity of flora is respectively 4800/L and 9000/kg dewatered sludge, heavy metal Cd, Cr, Cu, Pb, Zn in sludge supernatant,
The content of Ni and As is respectively 0.010mg/L, 0.085 mg/L, 0.049 mg/L, 0.550 mg/L, 0.960 mg/L, 0.020
Mg/L and 0.150 mg/L；The Main Morphology of Cd, Cr, Pb, Zn and Ni are that iron and manganese oxides reference state is (unstable in sludge cake
State), the form of Cu and As are carbonate combine state (labile state).
Embodiment 1: this sludge treating agent and its method for reducing moisture percentage in sewage sludge and sludge toxic, concrete operations are such as
Under:
(1) jacket slag crushing grinding is put into beaker at powdered, it is molten through 0.1mol/L sodium hydroxide at 70 DEG C
After liquid is gelatinized 1h, then cetyl trimethylammonium bromide solution is added in the jacket powder after gelatinization, at 50 DEG C
It being modified, after reacting 3h, beaker is taken out, room temperature is cooled to, product pours into dehydrated alcohol, and precipitating embrittlement is carried out, is filtered,
Solid product is placed in baking oven to be toasted 24 hours at 60 DEG C, and sludge treating agent A is made；Wherein, sodium hydroxide solution and Ma Ling
The volume mass ratio of potato skin powder is 10mL:1g, and the mass ratio of cetyl trimethylammonium bromide and jacket powder is 1:
200, when use, is first dissolved with distilled water, and point 2 speed with 1mL/min is added drop-wise in the jacket powder after gelatinization；
(2) jacket slag crushing grinding is put into conical flask at powdered, distilled water is added, and be passed through nitrogen, at 80 DEG C
Lower gelatinization 1 hour, is then added ammonium persulfate solution, and reaction after ten minutes, adds acrylamide solution and carries out graft reaction
2h takes out conical flask and pours into product in dehydrated alcohol after cooling, carries out precipitating embrittlement, filtering, and solid product is placed in baking oven
In, it is toasted 24 hours at 60 DEG C, sludge treating agent B is made；Wherein, the mass ratio of ammonium persulfate and jacket powder is 1:
200, it is both to be first dissolved in distilled water solution is made that the mass ratio of acrylamide and jacket powder, which is 1:200, then with
The speed of 1mL/min, which is divided 2 times, to be added dropwise in conical flask；Nitrogen is continually fed into preparation process；
(3) inorganic agent A is added in the sludge after gravity precipitates, stirs 5min at normal temperature, mixing speed 250rpm is quiet
Heavy 10min；Inorganic agent B is added into the sludge after quiet sink again, after stirring 5min at normal temperature, quiet heavy 10min；Wherein, it handles
The mass ratio of agent A and dry solids in sludge is 5 ‰, and the mass ratio of inorganic agent B and dry solids in sludge is 10 ‰；
(4) sludge after quiet sink is filtered at -0.075MPa, obtains the lower sludge cake of moisture content and sludge supernatant；
Be 50.5% with the moisture content of gravimetric detemination sludge cake, and in sludge supernatant and sludge cake excrement colibacillus group quantity
Respectively 500/L and 4000/kg dewatered sludge, heavy metal Cd, Cr, Cu, Pb, Zn, Ni and As in sludge supernatant contain
Amount is respectively 0.001mg/L, 0.030 mg/L, 0.009 mg/L, 0.06 mg/L, 0.45 mg/L, 0.002 mg/L and 0.050
mg/L；The Main Morphology of Cd, Cr, Pb, Zn and Ni are respectively from iron and manganese oxides reference state (labile state) to residual in sludge cake
The Main Morphology of slag state (stable state) transformation, Cu and As (are stablized from carbonate combine state (labile state) to residual form respectively
State) transformation.
Embodiment 2: this sludge treating agent and its method for reducing moisture percentage in sewage sludge and sludge toxic, concrete operations are as follows:
(1) jacket slag crushing grinding is put into beaker at powdered, it is molten through 0.15mol/L sodium hydroxide at 75 DEG C
After liquid is gelatinized 0.8h, then cetyl trimethylammonium bromide solution is added in the jacket powder after gelatinization, at 60 DEG C
Under be modified, react 2h after, beaker is taken out, room temperature is cooled to, product pours into dehydrated alcohol, carry out precipitating embrittlement, mistake
Filter, solid product is placed in baking oven to be toasted 24 hours at 60 DEG C, and sludge treating agent A is made；Wherein, sodium hydroxide solution and horse
The volume mass ratio of bell potato skin powder is 15mL:1g, and the mass ratio of cetyl trimethylammonium bromide and jacket powder is
1:100, when use, are first dissolved with distilled water, and point 3 speed with 2mL/min is added drop-wise in the jacket powder after gelatinization；
(2) jacket slag crushing grinding is put into conical flask at powdered, distilled water is added, and be passed through nitrogen, at 70 DEG C
Then ammonium persulfate solution is added in lower gelatinization 2 hours, after reaction 8 minutes, add acrylamide solution and carry out graft reaction
3h takes out conical flask and pours into product in dehydrated alcohol after cooling, carries out precipitating embrittlement, filtering, and solid product is placed in baking oven
In, it is toasted 24 hours at 60 DEG C, sludge treating agent B is made；Wherein, the mass ratio of ammonium persulfate and jacket powder is 1:
100, it is both to be first dissolved in distilled water solution is made that the mass ratio of acrylamide and jacket powder, which is 1:100, then with
The speed of 2mL/min, which is divided 3 times, to be added dropwise in conical flask；Nitrogen is continually fed into preparation process；
(3) inorganic agent A is added in the sludge after gravity precipitates, stirs 10min, mixing speed 250rpm at normal temperature,
Quiet heavy 20min；Inorganic agent B is added into the sludge after quiet sink again, after stirring 10min at normal temperature, quiet heavy 20min；Wherein, locate
The mass ratio for managing dry solids in agent A and sludge is 8 ‰, and the mass ratio of inorganic agent B and dry solids in sludge is 15 ‰；
(4) sludge after quiet sink is filtered at -0.075MPa, obtains the lower sludge cake of moisture content and sludge supernatant；
It is 49% with the moisture content of gravimetric detemination sludge cake, and the quantity of excrement colibacillus group is divided in sludge supernatant and sludge cake
Not Wei 410/L and 3500/kg dewatered sludge, heavy metal Cd, the content of Cr, Cu, Pb, Zn, Ni and As in sludge supernatant
Respectively 0.001mg/L, 0.021 mg/L, 0.006 mg/L, 0.032 mg/L, 0.305 mg/L, 0.002 mg/L and 0.036
mg/L；The Main Morphology of Cd, Cr, Pb, Zn and Ni are respectively from iron and manganese oxides reference state (labile state) to residual in sludge cake
The Main Morphology of slag state (stable state) transformation, Cu and As (are stablized from carbonate combine state (labile state) to residual form respectively
State) transformation.
Embodiment 3: this sludge treating agent and its method for reducing moisture percentage in sewage sludge and sludge toxic, concrete operations are as follows:
(1) jacket slag crushing grinding is put into beaker at powdered, it is molten through 0.2mol/L sodium hydroxide at 80 DEG C
After liquid is gelatinized 0.5h, then cetyl trimethylammonium bromide solution is added in the jacket powder after gelatinization, at 70 DEG C
Under be modified, react 1h after, beaker is taken out, room temperature is cooled to, product pours into dehydrated alcohol, carry out precipitating embrittlement, mistake
Filter, solid product is placed in baking oven to be toasted 24 hours at 60 DEG C, and sludge treating agent A is made；Wherein, sodium hydroxide solution and horse
The volume mass ratio of bell potato skin powder is 20mL:1g, and the mass ratio of cetyl trimethylammonium bromide and jacket powder is
1:50, when use, are first dissolved with distilled water, and point 2 speed with 1.5mL/min is added drop-wise in the jacket powder after gelatinization；
(2) jacket slag crushing grinding is put into conical flask at powdered, distilled water is added, and be passed through nitrogen, at 75 DEG C
Then ammonium persulfate solution is added in lower gelatinization 1.5 hours, after reaction 12 minutes, add acrylamide solution and be grafted instead
4h is answered, conical flask is taken out and pours into product in dehydrated alcohol after cooling, carries out precipitating embrittlement, filtering, solid product is placed in baking
It in case, is toasted 24 hours at 60 DEG C, sludge treating agent B is made；Wherein, the mass ratio of ammonium persulfate and jacket powder is
The mass ratio of 1:50, acrylamide and jacket powder are 1:30, are both to be first dissolved in distilled water solution is made, then with
The speed of 1.5mL/min, which is divided 2 times, to be added dropwise in conical flask；Nitrogen is continually fed into preparation process；
(3) inorganic agent A is added in the sludge after gravity precipitates, stirs 8min at normal temperature, mixing speed 250rpm is quiet
Heavy 30min；Inorganic agent B is added into the sludge after quiet sink again, after stirring 8min at normal temperature, quiet heavy 30min；Wherein, it handles
The mass ratio of agent A and dry solids in sludge is 10 ‰, and the mass ratio of inorganic agent B and dry solids in sludge is 20 ‰；
(4) sludge after quiet sink is filtered at -0.075MPa, obtains the lower sludge cake of moisture content and sludge supernatant；
Be 45.8% with the moisture content of gravimetric detemination sludge cake, and in sludge supernatant and sludge cake excrement colibacillus group quantity
Respectively 150/L and 3000/kg dewatered sludge, heavy metal Cd, Cr, Cu, Pb, Zn, Ni and As in sludge supernatant contain
Amount is respectively 0mg/L, 0.02 mg/L, 0.003 mg/L, 0.025 mg/L, 0.250 mg/L, 0.002 mg/L and 0.021
mg/L；The Main Morphology of Cd, Cr, Pb, Zn and Ni are respectively from iron and manganese oxides reference state (labile state) to residual in sludge cake
The Main Morphology of slag state (stable state) transformation, Cu and As (are stablized from carbonate combine state (labile state) to residual form respectively
State) transformation.
Claims (6)
1. a kind of sludge treating agent, it is characterised in that: including inorganic agent A and inorganic agent B；
The inorganic agent A is that sodium hydroxide solution at 70-80 DEG C, is added to jacket crushing grinding at powdered
Gelatinization 0.5-1h is carried out in jacket powder, then by cetyl trimethylammonium bromide solution with the speed of 1-2mL/min
It in jacket powder after being added drop-wise to gelatinization by several times, is modified at 50-70 DEG C, after modified 1-3h, is cooled to room temperature, product
It pours into dehydrated alcohol, carries out precipitating embrittlement, filtering, solid product is placed at 60 DEG C and dries, and inorganic agent A is made；
The inorganic agent B is then distilled water is added, and be passed through nitrogen, in 70-80 at powdered in jacket crushing grinding
It is gelatinized 1-2h at DEG C, ammonium persulfate solution is then added, after reacting 8-12min, adds acrylamide solution and be grafted instead
2-4h is answered, it is after the reaction was completed, cooling, product is poured into dehydrated alcohol, precipitating embrittlement, filtering are carried out, solid product is placed in 60
It is dried at DEG C, inorganic agent B is made.
2. sludge treating agent according to claim 1, it is characterised in that: the concentration of sodium hydroxide solution is 0.1-
0.2mol/L, the volume mass ratio with jacket powder are 10mL-20mL:1g.
3. sludge treating agent according to claim 1, it is characterised in that: cetyl trimethylammonium bromide and jacket
The mass ratio of powder is 1:25-1:200, in use, first being dissolved with distilled water.
4. sludge treating agent according to claim 1, it is characterised in that: the mass ratio of ammonium persulfate and jacket powder
For 1:200-1:50, the mass ratio of acrylamide and jacket powder is 1:200-1:25, in use, first water-soluble with distilling
Then solution is added dropwise with the speed of 1-2mL/min and is added.
5. application of the sludge treating agent described in claim 1 in reduction moisture percentage in sewage sludge and sludge toxic, feature exist
In: inorganic agent A is added in the sludge after gravity precipitates, stirs quiet heavy 10-30min after 5-10min at normal temperature；Again to quiet
Inorganic agent B is added in sludge after heavy, after stirring 5-10min at normal temperature, quiet heavy 10-30min；Filtering, obtain moisture content compared with
Low sludge cake and sludge supernatant, reaching reduces bacterial content in mud cake and supernatant, reduces heavy metal in supernatant and contains
It measures, the purpose of heavy metal in stabilized sludge mud cake.
6. applying according to claim 5, it is characterised in that: the mass ratio of inorganic agent A and dry solids in sludge is 1 ‰-
The mass ratio of 10 ‰, inorganic agent B and dry solids in sludge is 2 ‰ -20 ‰.
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