CN105330092A - Technology for processing transformer oil stains - Google Patents
Technology for processing transformer oil stains Download PDFInfo
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- CN105330092A CN105330092A CN201510421971.8A CN201510421971A CN105330092A CN 105330092 A CN105330092 A CN 105330092A CN 201510421971 A CN201510421971 A CN 201510421971A CN 105330092 A CN105330092 A CN 105330092A
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- 238000005516 engineering process Methods 0.000 title abstract description 6
- 238000000034 method Methods 0.000 claims abstract description 54
- 239000007788 liquid Substances 0.000 claims abstract description 35
- 239000002351 wastewater Substances 0.000 claims abstract description 35
- 230000008569 process Effects 0.000 claims abstract description 22
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 15
- 238000006243 chemical reaction Methods 0.000 claims abstract description 9
- 230000000813 microbial effect Effects 0.000 claims abstract description 5
- 238000000926 separation method Methods 0.000 claims abstract description 5
- 238000009713 electroplating Methods 0.000 claims description 16
- 241000894006 Bacteria Species 0.000 claims description 12
- 239000003795 chemical substances by application Substances 0.000 claims description 12
- 239000000203 mixture Substances 0.000 claims description 11
- 241000195493 Cryptophyta Species 0.000 claims description 10
- 241000589517 Pseudomonas aeruginosa Species 0.000 claims description 10
- 241000605272 Acidithiobacillus thiooxidans Species 0.000 claims description 9
- 241000228245 Aspergillus niger Species 0.000 claims description 9
- 241000193830 Bacillus <bacterium> Species 0.000 claims description 9
- 244000249201 Scenedesmus obliquus Species 0.000 claims description 9
- 235000007122 Scenedesmus obliquus Nutrition 0.000 claims description 9
- 241000605118 Thiobacillus Species 0.000 claims description 9
- 238000005189 flocculation Methods 0.000 claims description 9
- 230000016615 flocculation Effects 0.000 claims description 9
- 238000009472 formulation Methods 0.000 claims description 9
- 235000017060 Arachis glabrata Nutrition 0.000 claims description 6
- 235000010777 Arachis hypogaea Nutrition 0.000 claims description 6
- 244000105624 Arachis hypogaea Species 0.000 claims description 6
- 235000018262 Arachis monticola Nutrition 0.000 claims description 6
- 235000012054 meals Nutrition 0.000 claims description 6
- 235000020232 peanut Nutrition 0.000 claims description 6
- 238000003756 stirring Methods 0.000 claims description 6
- 239000002068 microbial inoculum Substances 0.000 claims description 5
- 239000000126 substance Substances 0.000 claims description 4
- 239000005995 Aluminium silicate Substances 0.000 claims description 3
- 229920002101 Chitin Polymers 0.000 claims description 3
- 229920001661 Chitosan Polymers 0.000 claims description 3
- 239000004159 Potassium persulphate Substances 0.000 claims description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 3
- 235000012211 aluminium silicate Nutrition 0.000 claims description 3
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 claims description 3
- 239000000292 calcium oxide Substances 0.000 claims description 3
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 claims description 3
- 238000007667 floating Methods 0.000 claims description 3
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 claims description 3
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 claims description 3
- 239000012286 potassium permanganate Substances 0.000 claims description 3
- USHAGKDGDHPEEY-UHFFFAOYSA-L potassium persulfate Chemical compound [K+].[K+].[O-]S(=O)(=O)OOS([O-])(=O)=O USHAGKDGDHPEEY-UHFFFAOYSA-L 0.000 claims description 3
- 235000019394 potassium persulphate Nutrition 0.000 claims description 3
- 239000000843 powder Substances 0.000 claims description 3
- 238000010298 pulverizing process Methods 0.000 claims description 3
- 239000002994 raw material Substances 0.000 claims description 3
- 241001103617 Pseudomonas aeruginosa ATCC 15442 Species 0.000 claims 1
- 230000006378 damage Effects 0.000 abstract description 4
- 238000007599 discharging Methods 0.000 abstract 1
- 239000008394 flocculating agent Substances 0.000 abstract 1
- 239000002054 inoculum Substances 0.000 abstract 1
- 239000000725 suspension Substances 0.000 abstract 1
- 229910001385 heavy metal Inorganic materials 0.000 description 13
- 150000002500 ions Chemical class 0.000 description 9
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 7
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- 238000005342 ion exchange Methods 0.000 description 5
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- NWUYHJFMYQTDRP-UHFFFAOYSA-N 1,2-bis(ethenyl)benzene;1-ethenyl-2-ethylbenzene;styrene Chemical compound C=CC1=CC=CC=C1.CCC1=CC=CC=C1C=C.C=CC1=CC=CC=C1C=C NWUYHJFMYQTDRP-UHFFFAOYSA-N 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 3
- 239000010949 copper Substances 0.000 description 3
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- 239000003456 ion exchange resin Substances 0.000 description 3
- 229920003303 ion-exchange polymer Polymers 0.000 description 3
- 239000012074 organic phase Substances 0.000 description 3
- 239000002904 solvent Substances 0.000 description 3
- 238000001179 sorption measurement Methods 0.000 description 3
- 238000004065 wastewater treatment Methods 0.000 description 3
- RSWGJHLUYNHPMX-UHFFFAOYSA-N 1,4a-dimethyl-7-propan-2-yl-2,3,4,4b,5,6,10,10a-octahydrophenanthrene-1-carboxylic acid Chemical compound C12CCC(C(C)C)=CC2=CCC2C1(C)CCCC2(C)C(O)=O RSWGJHLUYNHPMX-UHFFFAOYSA-N 0.000 description 2
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 2
- 241000588813 Alcaligenes faecalis Species 0.000 description 2
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- 239000003463 adsorbent Substances 0.000 description 2
- 229940005347 alcaligenes faecalis Drugs 0.000 description 2
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- WRIDQFICGBMAFQ-UHFFFAOYSA-N (E)-8-Octadecenoic acid Natural products CCCCCCCCCC=CCCCCCCC(O)=O WRIDQFICGBMAFQ-UHFFFAOYSA-N 0.000 description 1
- LQJBNNIYVWPHFW-UHFFFAOYSA-N 20:1omega9c fatty acid Natural products CCCCCCCCCCC=CCCCCCCCC(O)=O LQJBNNIYVWPHFW-UHFFFAOYSA-N 0.000 description 1
- QJZYHAIUNVAGQP-UHFFFAOYSA-N 3-nitrobicyclo[2.2.1]hept-5-ene-2,3-dicarboxylic acid Chemical compound C1C2C=CC1C(C(=O)O)C2(C(O)=O)[N+]([O-])=O QJZYHAIUNVAGQP-UHFFFAOYSA-N 0.000 description 1
- QSBYPNXLFMSGKH-UHFFFAOYSA-N 9-Heptadecensaeure Natural products CCCCCCCC=CCCCCCCCC(O)=O QSBYPNXLFMSGKH-UHFFFAOYSA-N 0.000 description 1
- 239000002028 Biomass Substances 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- XFXPMWWXUTWYJX-UHFFFAOYSA-N Cyanide Chemical compound N#[C-] XFXPMWWXUTWYJX-UHFFFAOYSA-N 0.000 description 1
- 241000233866 Fungi Species 0.000 description 1
- OYHQOLUKZRVURQ-HZJYTTRNSA-N Linoleic acid Chemical compound CCCCC\C=C/C\C=C/CCCCCCCC(O)=O OYHQOLUKZRVURQ-HZJYTTRNSA-N 0.000 description 1
- IOVCWXUNBOPUCH-UHFFFAOYSA-M Nitrite anion Chemical compound [O-]N=O IOVCWXUNBOPUCH-UHFFFAOYSA-M 0.000 description 1
- 239000005642 Oleic acid Substances 0.000 description 1
- ZQPPMHVWECSIRJ-UHFFFAOYSA-N Oleic acid Natural products CCCCCCCCC=CCCCCCCCC(O)=O ZQPPMHVWECSIRJ-UHFFFAOYSA-N 0.000 description 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 1
- 239000005864 Sulphur Substances 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
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- 150000001875 compounds Chemical class 0.000 description 1
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- 230000018109 developmental process Effects 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 230000005674 electromagnetic induction Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 239000004021 humic acid Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- QXJSBBXBKPUZAA-UHFFFAOYSA-N isooleic acid Natural products CCCCCCCC=CCCCCCCCCC(O)=O QXJSBBXBKPUZAA-UHFFFAOYSA-N 0.000 description 1
- 229960004232 linoleic acid Drugs 0.000 description 1
- 238000011068 loading method Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 244000005706 microflora Species 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- XTAZYLNFDRKIHJ-UHFFFAOYSA-N n,n-dioctyloctan-1-amine Chemical compound CCCCCCCCN(CCCCCCCC)CCCCCCCC XTAZYLNFDRKIHJ-UHFFFAOYSA-N 0.000 description 1
- OHADWZGOXBOKDQ-UHFFFAOYSA-N n-heptylacetamide Chemical compound CCCCCCCNC(C)=O OHADWZGOXBOKDQ-UHFFFAOYSA-N 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- ZQPPMHVWECSIRJ-KTKRTIGZSA-N oleic acid Chemical compound CCCCCCCC\C=C/CCCCCCCC(O)=O ZQPPMHVWECSIRJ-KTKRTIGZSA-N 0.000 description 1
- JRKICGRDRMAZLK-UHFFFAOYSA-L persulfate group Chemical group S(=O)(=O)([O-])OOS(=O)(=O)[O-] JRKICGRDRMAZLK-UHFFFAOYSA-L 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
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- 125000002924 primary amino group Chemical class [H]N([H])* 0.000 description 1
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- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
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- RWSOTUBLDIXVET-UHFFFAOYSA-O sulfonium Chemical compound [SH3+] RWSOTUBLDIXVET-UHFFFAOYSA-O 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
- 230000031068 symbiosis, encompassing mutualism through parasitism Effects 0.000 description 1
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- 230000009466 transformation Effects 0.000 description 1
- STCOOQWBFONSKY-UHFFFAOYSA-N tributyl phosphate Chemical compound CCCCOP(=O)(OCCCC)OCCCC STCOOQWBFONSKY-UHFFFAOYSA-N 0.000 description 1
- ZMBHCYHQLYEYDV-UHFFFAOYSA-N trioctylphosphine oxide Chemical compound CCCCCCCCP(=O)(CCCCCCCC)CCCCCCCC ZMBHCYHQLYEYDV-UHFFFAOYSA-N 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- 229910052725 zinc Inorganic materials 0.000 description 1
Landscapes
- Separation Of Suspended Particles By Flocculating Agents (AREA)
- Water Treatment By Sorption (AREA)
Abstract
The invention relates to a technology for processing transformer oil stains. The technology comprises the following steps: carrying out solid-liquid separation to effectively prevent the obstruction phenomenon and apparatus damages appearing in the wastewater conveying process, removing suspensions by using a floater removal device, adding 10g of a flocculating agent to every cubic meter of wastewater, reacting for 30-40min, discharging wastewater to a microbial reaction tank, adjusting the pH value to 7-8, adding 15g of an inoculant to every cubic meter of the liquid, and standing for a weak. The technology improves the water treatment capacity and the quality of treated water, reduces the running cost, and promotes standard reaching discharge.
Description
Technical field
The invention belongs to microbial technology field, be specifically related to a kind of technique for the treatment of transformer greasy dirt.
Background technology
Transformer (Transformer) utilizes the principle of electromagnetic induction to change the device of voltage of alternating current, along with the generally application of transformer, the a large amount of electroplating wastewaters producing the generation of this transformer must arouse enough attention, the waste water etc. that electroplating wastewater main source has the rinse water of plating piece, useless electroplate liquid, plating shop ground flushing water and plating piece surface treatment to produce, its complicated component, general containing heavy metal ion and prussiates such as chromium, nickel, copper, zinc, gold and silver, toxicity is very strong, huge to the destruction of environment.
The treatment process of prior art to electroplating wastewater is generally following several:
1, solvent extration
Solvent extration be utilize heavy metal ion organic phase and in water the difference of solubleness, make heavy metal concentrate in the separation method of organic phase.Organic phase also claims extraction agent, common are tributyl phosphate, trioctylphosphine oxide, diformazan heptyl ethanamide, trioctylamine, primary amine, oleic acid and linolic acid etc.In addition, in metal form analysis, organic extractant is also widely used, as acetone, ethanol etc.Solvent extration process heavy metal wastewater thereby equipment is simple, easy and simple to handle, and it is little to add extraction dosage, and the recyclable recycling of extraction agent, secondary pollution is little, is a kind for the treatment of process having very much development potentiality.
2, chemical precipitation method
Chemical precipitation method is the principle according to solubility product, adds oxyhydroxide, sulfide, carbonated etc., heavy metal ion and hydroxide ion, sulfonium ion, carbanion etc. is combined and forms insoluble compound.Although technique is comparatively simple, operation is also than being easier to, and this method is subject to the impact of precipitation agent and envrionment conditions, makes aqueous concentration not reach emission standard.In addition, if a large amount of waste residues that reaction produces well are not processed, easily produce secondary pollution, do not meet the principle of environmental protection.
3, ion exchange method
Ion exchange method is the process of heavy metal ion and ion exchange resin generation ion-exchange, and resin property heavy metal is removed considerable influence.Conventional ion exchange resin has Zeo-karb, anionite-exchange resin, resin and Humic Acid Resin etc.Ion exchange method is optionally heavy-metal ion removal, and technique is simple, easy and simple to handle, and removal effect is fine.Compare with electrolytic process with the precipitator method, ion exchange method has certain advantage in the wastewater treatment of lower concentration, but this method is by the loading capacity of resin, the useless impact of impurities in water and the restriction of exchanger kind, output and cost, and higher to the pre-processing requirements of waste water, the process of regeneration of ion-exchange resin and regenerated liquid is also an insoluble problem.
4, absorption method
Absorption method is in fact the attraction of adsorbent activity surface heavy metal ion, is the adsorption utilizing porous solid material, makes the heavy metal ion adsorbed a kind of method removed at solid adsorbent surfaces in waste water.The most frequently used sorbent material is gac, but it is expensive, and work-ing life is short, and need regeneration, process cost is high.In addition, absorption method process heavy metal-containing waste water is applied widely, can not cause secondary pollution, but the adsorption selectivity of sorbent material often heavy metal ion is not high, can not well be promoted.
National environmental protection portion requires that electroplating industry need discharge according to GB21900-2008 " plating pollutant emission standard ", use the electroplating wastewater of conventional disposal methods complicated component, be difficult to shunting thoroughly, be difficult to process up to standard, biochemical difficulty, or need by transformation of facility or multiple-stage treatment etc., such medicine dosage is large, technique repeat produce mud also many, cost is high, be also difficult to guarantee sewage qualified discharge.Therefore, develop that a kind of construction investment is few, running cost is low, the method for the place to go transformer electroplating wastewater of good treatment efficiency is extremely urgent.
Summary of the invention
The object of this invention is to provide a kind of technique for the treatment of transformer electroplating wastewater.
The present invention adopts following technical scheme to realize:
A technique for place to go transformer electroplating wastewater, is characterized in that comprising the steps:
(1) solid-liquid separation is carried out to transformer electroplating wastewater, can effectively prevent from producing latch up phenomenon and damage equipment in waste water course of conveying by this operation;
(2) step (1) is obtained liquid by floating matter removal device removing suspended substance.The processing efficiency in subsequent technique can be improved;
(3) waste water that step (2) processes is added flocculation agent, the ratio adding 8g according to every cubic metre of waste water is added, and reaction 40min, is dewatered by whizzer;
(4) waste water that step (4) processes is discharged to microbial reaction pond, adjustment pH value is 7-8, then adds biotechnological formulation 15g according to every cubic metre of liquid, leaves standstill one week.
Described biotechnological formulation is prepared as follows:
(1) Pericarppium arachidis hypogaeae is put in pulverizer, cross 100 mesh sieves after pulverizing and obtain peanut hull meal;
(2) by thiobacillus ferrooxidant, Bacillus foecalis alkaligenes, thiobacillus thiooxidans, it is 1 × 10 that Pseudomonas aeruginosa and aspergillus niger are cultured to concentration respectively
7the bacterium liquid of individual/ml, then mixes according to the volume ratio of 5:3:1:2:1, obtains mixed bacteria liquid; Mixed bacteria liquid and peanut hull meal are mixed according to the weight ratio of 1:1, obtains microbial inoculum;
Described thiobacillus ferrooxidant is preferably thiobacillus ferrooxidant CGMCCNO.0727 (see CN1375553A);
Described Bacillus foecalis alkaligenes is that Bacillus foecalis alkaligenes (Alcaligenesfaecalis) ATCC31555(is for example, see document Structuralstudiesofanextracellularpolysaccharide (S-130) elaboratedby
alcaligenesaTCC31555, CarbohydrateResearch, 1986);
Described thiobacillus thiooxidans is preferably thiobacillus thiooxidans CGMCCNO.0759 (see CN1389564A);
Described Pseudomonas aeruginosa is preferably Pseudomonas aeruginosa (Pseudomonasaeruginosa) ATCC15442;
Described aspergillus niger be preferably aspergillus niger (
aspergillusnige) CCTCCNo:M206034 (CN1924000 openly uses).
(3): scenedesmus obliquus being cultured to concentration is 1 × 10
5the algae liquid of individual/ml
Described scenedesmus obliquus is preferably (Scenedesmusobliquus) CGMCCNo.8015(see CN103484374A)
(4) carrier is prepared:
Described carrier is by kaolin 15 parts, chitosan 10 parts, chitin 10 parts, 40 parts, water, and get above-mentioned raw materials according to parts by weight and add in stirred reactor, 500 turns/min stirs 10min, leaves standstill 30min, and being placed in 60 DEG C of oven dry to moisture contents is 5%.
Algae liquid prepared by bacterium liquid step (2) prepared, step (3) and carrier prepared by step (4) mix according to the mass ratio of 2:2:3, and stir, 30 DEG C are dried to water content is 10%, obtains biotechnological formulation.
Bacterial classification of the present invention all can be bought and obtain from China Committee for Culture Collection of Microorganisms's common micro-organisms center (CGMCC) and American Type Culture collection warehousing (ATCC), Chinese agriculture Microbiological Culture Collection administrative center (ACCC).
Bacterial classification of the present invention and algae all obtain bacterium liquid or the algae liquid of desired concn by the cultural method of routine, this is innovative point of the present invention not, as space is limited, does not repeat one by one.
Described flocculation agent is composed of the following components: 10 parts, diatomite, 8 parts, potassium permanganate, Potassium Persulphate 7 parts, calcium oxide 10 powder, 9 parts, aluminum oxide.
In above-mentioned flocculation agent, the adjustable pH value of alkaline matter, provides the alkaline condition of wastewater treatment, and can precipitate C u
2+, Zn
2+, Ni
2+plasma.Activated alumina can be used as flocculation adsorption suspended solid, and persulphate has and helps solidifying character, in the basic conditions can by some heavy metal ion as Ni
2+change into oxide precipitation.The inorganics such as nitrite, prussiate can be oxidized by oxygenant, has good removal effect, use above-mentioned flocculation agent to reach optimum synergistic effect to waste water effect to the COD in waste water, chromium, sulphur etc.
Composite fungus agent of the present invention is by the various bacterial classification that can form dominant microflora, be mixed with high-efficiency microorganism preparation, be added in Waste Water Treatment by a certain amount of, accelerate the degraded of microbe, to improve the biological treatment efficiency of system, ensure system stable operation.It contains multiple microorganism Recalcitrant chemicals being had to excellent degradation capability, reasonable compatibility between each bacterial classification, symbiosis is coordinated, mutually not antagonism, active high, biomass is large, breeding is fast, is suitable for the process of transformer electroplating wastewater, can improve the process water yield and water quality treatment, reduce working cost, promote qualified discharge.
Embodiment
Embodiment 1:
A technique for place to go transformer electroplating wastewater, is characterized in that comprising the steps:
(1) solid-liquid separation is carried out to transformer electroplating wastewater, can effectively prevent from producing latch up phenomenon and damage equipment in waste water course of conveying by this operation;
(2) step (1) is obtained liquid by floating matter removal device removing suspended substance.The processing efficiency in subsequent technique can be improved;
(3) waste water that step (2) processes is added flocculation agent, the ratio adding 8g according to every cubic metre of waste water is added, and reaction 40min, is dewatered by whizzer;
(4) waste water that step (4) processes is discharged to microbial reaction pond, adjustment pH value is 7-8, then adds biotechnological formulation 15g according to every cubic metre of liquid, leaves standstill one week.
Described biotechnological formulation is prepared as follows:
(1) Pericarppium arachidis hypogaeae is put in pulverizer, cross 100 mesh sieves after pulverizing and obtain peanut hull meal;
(2) by thiobacillus ferrooxidant, Bacillus foecalis alkaligenes, thiobacillus thiooxidans, it is 1 × 10 that Pseudomonas aeruginosa and aspergillus niger are cultured to concentration respectively
7the bacterium liquid of individual/ml, then mixes according to the volume ratio of 5:3:1:2:1, obtains mixed bacteria liquid; Mixed bacteria liquid and peanut hull meal are mixed according to the weight ratio of 1:1, obtains microbial inoculum;
Described thiobacillus ferrooxidant is preferably thiobacillus ferrooxidant CGMCCNO.0727 (see CN1375553A);
Described Bacillus foecalis alkaligenes is that Bacillus foecalis alkaligenes (Alcaligenesfaecalis) ATCC31555(is for example, see document Structuralstudiesofanextracellularpolysaccharide (S-130) elaboratedby
alcaligenesaTCC31555, CarbohydrateResearch, 1986);
Described thiobacillus thiooxidans is preferably thiobacillus thiooxidans CGMCCNO.0759 (see CN1389564A);
Described Pseudomonas aeruginosa is preferably Pseudomonas aeruginosa (Pseudomonasaeruginosa) ATCC15442;
Described aspergillus niger be preferably aspergillus niger (
aspergillusnige) CCTCCNo:M206034 (CN1924000 openly uses).
(3): scenedesmus obliquus being cultured to concentration is 1 × 10
5the algae liquid of individual/ml
Described scenedesmus obliquus is preferably (Scenedesmusobliquus) CGMCCNo.8015(see CN103484374A)
(4) carrier is prepared:
Described carrier is by kaolin 15 parts, chitosan 10 parts, chitin 10 parts, 40 parts, water, and get above-mentioned raw materials according to parts by weight and add in stirred reactor, 500 turns/min stirs 10min, leaves standstill 30min, and being placed in 60 DEG C of oven dry to moisture contents is 5%.
Algae liquid prepared by microbial inoculum step (2) prepared, step (3) and carrier prepared by step (4) mix according to the mass ratio of 2:2:3, and stir, 30 DEG C are dried to water content is 10%, obtains biotechnological formulation.
Bacterial classification of the present invention all can be bought and obtain from China Committee for Culture Collection of Microorganisms's common micro-organisms center (CGMCC) and American Type Culture collection warehousing (ATCC), Chinese agriculture Microbiological Culture Collection administrative center (ACCC).
Bacterial classification of the present invention and algae all obtain bacterium liquid or the algae liquid of desired concn by the cultural method of routine, this is innovative point of the present invention not, as space is limited, does not repeat one by one.
Described flocculation agent is composed of the following components: 10 parts, diatomite, 8 parts, potassium permanganate, Potassium Persulphate 7 parts, calcium oxide 10 powder, 9 parts, aluminum oxide.
Embodiment 2
Get transformer electroplating wastewater 1L in beaker, the former water index of this electroplating wastewater is respectively: pH5.8, COD1753mg/L, Cr
6+6.37mg/L, Ni
2+68mg/L, Cu
2+39.5mg/L, Zn
2+212mg/L, NH
3-N50mg/L, according to the method first solid-liquid separation-remove suspended substance-flocculation-microbial reaction of above-described embodiment 1, after process, records liquid indices result and is respectively: pH8.0, COD30.2mg/L, Cr
6+0.008mg/L, Ni
2+0.12mg/L, Cu
2+0.07mg/L, Zn
2+0.035mg/L, NH
3-N1.21mg/L.
Embodiment 3
Adopt method process transformer production factory electroplating sewerage prepared by embodiment 1, result is as shown in table 1 below.
Table 1
| Before process (mg/L) | After process (mg/L) | Clearance | |
| COD | 1651 | 22.7 | 98.6％ |
| Cr 6+ | 19 | 0.007 | 99.9％ |
| NH 3-N | 61 | 1.22 | 96.4％ |
| Ni 2+ | 95 | 0.13 | 99.8% |
Although above done detailed explanation with general explanation and embodiment to this case, on basis of the present invention, can make some modifications or improvements it, this will be apparent to those skilled in the art.Therefore, amendment done without departing from theon the basis of the spirit of the present invention or improvement, all belong to the scope of protection of present invention.
Claims (3)
1., for the treatment of a technique for transformer greasy dirt, it is characterized in that comprising the steps:
(1) solid-liquid separation is carried out to transformer electroplating wastewater;
(2) step (1) is obtained liquid by floating matter removal device removing suspended substance;
(3) waste water that step (2) processes is added flocculation agent, the ratio adding 8g according to every cubic metre of waste water is added, and reaction 40min, is dewatered by whizzer;
(4) waste water that step (4) processes is discharged to microbial reaction pond, adjustment pH value is 7-8, then adds biotechnological formulation 15g according to every cubic metre of liquid, leaves standstill one week;
Described biotechnological formulation is prepared as follows:
1) Pericarppium arachidis hypogaeae is put in pulverizer, cross 100 mesh sieves after pulverizing and obtain peanut hull meal;
2) by thiobacillus ferrooxidant, Bacillus foecalis alkaligenes, thiobacillus thiooxidans, it is 1 × 10 that Pseudomonas aeruginosa and aspergillus niger are cultured to concentration respectively
7the bacterium liquid of individual/ml, then mixes according to the volume ratio of 5:3:1:2:1, obtains mixed bacteria liquid; Mixed bacteria liquid and peanut hull meal are mixed according to the weight ratio of 1:1, obtains microbial inoculum;
3) scenedesmus obliquus being cultured to concentration is 1 × 10
5the algae liquid of individual/ml
Described scenedesmus obliquus is (Scenedesmusobliquus) CGMCCNo.8015;
4) carrier is prepared:
Described carrier is by kaolin 15 parts, chitosan 10 parts, chitin 10 parts, 40 parts, water, and get above-mentioned raw materials according to parts by weight and add in stirred reactor, 500 turns/min stirs 10min, leaves standstill 30min, and being placed in 60 DEG C of oven dry to moisture contents is 5%;
5) by step 2) carrier prepared of the algae liquid prepared of the microbial inoculum prepared, step 3) and step 4) mixes according to the mass ratio of 2:2:3, and stir, 30 DEG C are dried to water content is 10%, obtains biotechnological formulation.
2. method according to claim 1, is characterized in that:
Described thiobacillus ferrooxidant is preferably thiobacillus ferrooxidant CGMCCNO.0727;
Described Bacillus foecalis alkaligenes is Bacillus foecalis alkaligenes ATCC31555;
Described thiobacillus thiooxidans is preferably thiobacillus thiooxidans CGMCCNO.0759;
Described Pseudomonas aeruginosa is preferably Pseudomonas aeruginosa ATCC15442;
Described aspergillus niger is preferably aspergillus niger CCTCCNo:M206034.
3. method according to claim 1, is characterized in that, described flocculation agent is composed of the following components: 10 parts, diatomite, 8 parts, potassium permanganate, Potassium Persulphate 7 parts, calcium oxide 10 powder, 9 parts, aluminum oxide.
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| CN109626596A (en) * | 2019-01-16 | 2019-04-16 | 合肥市东方美捷分子材料技术有限公司 | A kind of preparation method and applications of effective microorganisms |
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