CN102701464B - Ecological fungus bed sewage treatment process - Google Patents
Ecological fungus bed sewage treatment process Download PDFInfo
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- CN102701464B CN102701464B CN2012102096014A CN201210209601A CN102701464B CN 102701464 B CN102701464 B CN 102701464B CN 2012102096014 A CN2012102096014 A CN 2012102096014A CN 201210209601 A CN201210209601 A CN 201210209601A CN 102701464 B CN102701464 B CN 102701464B
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- 239000010865 sewage Substances 0.000 title claims abstract description 52
- 238000000034 method Methods 0.000 title claims abstract description 28
- 230000008569 process Effects 0.000 title claims abstract description 25
- 238000011282 treatment Methods 0.000 title claims abstract description 24
- 241000233866 Fungi Species 0.000 title abstract 2
- 241000894006 Bacteria Species 0.000 claims abstract description 43
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 15
- 230000001580 bacterial effect Effects 0.000 claims abstract description 14
- 239000000919 ceramic Substances 0.000 claims abstract description 11
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 9
- 239000000126 substance Substances 0.000 claims abstract description 9
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 claims abstract description 8
- 235000013405 beer Nutrition 0.000 claims abstract description 8
- 229910052804 chromium Inorganic materials 0.000 claims abstract description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 5
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims abstract description 5
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 5
- 229910052745 lead Inorganic materials 0.000 claims abstract description 5
- 229910052698 phosphorus Inorganic materials 0.000 claims abstract description 5
- 239000011574 phosphorus Substances 0.000 claims abstract description 5
- 239000011780 sodium chloride Substances 0.000 claims abstract description 4
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims description 9
- 241001074903 Methanobacteria Species 0.000 claims description 8
- 239000005864 Sulphur Substances 0.000 claims description 8
- 229910001385 heavy metal Inorganic materials 0.000 claims description 6
- 125000000623 heterocyclic group Chemical group 0.000 claims description 6
- 239000000084 colloidal system Substances 0.000 claims description 5
- 238000012544 monitoring process Methods 0.000 claims description 4
- 238000006073 displacement reaction Methods 0.000 claims description 3
- 230000008020 evaporation Effects 0.000 claims description 3
- 238000001704 evaporation Methods 0.000 claims description 3
- 230000005012 migration Effects 0.000 claims description 3
- 238000013508 migration Methods 0.000 claims description 3
- 230000000737 periodic effect Effects 0.000 claims description 3
- 238000002360 preparation method Methods 0.000 claims description 3
- 239000002994 raw material Substances 0.000 claims description 3
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 claims description 3
- 229910010271 silicon carbide Inorganic materials 0.000 claims description 3
- 238000005245 sintering Methods 0.000 claims description 3
- 235000015097 nutrients Nutrition 0.000 claims description 2
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonia chloride Chemical compound [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 abstract 1
- LKDRXBCSQODPBY-VRPWFDPXSA-N D-fructopyranose Chemical compound OCC1(O)OC[C@@H](O)[C@@H](O)[C@@H]1O LKDRXBCSQODPBY-VRPWFDPXSA-N 0.000 abstract 1
- 239000007836 KH2PO4 Substances 0.000 abstract 1
- 235000019270 ammonium chloride Nutrition 0.000 abstract 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract 1
- 239000003795 chemical substances by application Substances 0.000 abstract 1
- 235000015165 citric acid Nutrition 0.000 abstract 1
- 239000006260 foam Substances 0.000 abstract 1
- XLYOFNOQVPJJNP-ZSJDYOACSA-N heavy water Substances [2H]O[2H] XLYOFNOQVPJJNP-ZSJDYOACSA-N 0.000 abstract 1
- 229910000402 monopotassium phosphate Inorganic materials 0.000 abstract 1
- 235000019796 monopotassium phosphate Nutrition 0.000 abstract 1
- 238000012946 outsourcing Methods 0.000 abstract 1
- 229910052760 oxygen Inorganic materials 0.000 abstract 1
- 239000001301 oxygen Substances 0.000 abstract 1
- GNSKLFRGEWLPPA-UHFFFAOYSA-M potassium dihydrogen phosphate Chemical compound [K+].OP(O)([O-])=O GNSKLFRGEWLPPA-UHFFFAOYSA-M 0.000 abstract 1
- 239000010802 sludge Substances 0.000 abstract 1
- 235000011088 sodium lactate Nutrition 0.000 abstract 1
- 239000001540 sodium lactate Substances 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 9
- 239000011651 chromium Substances 0.000 description 5
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 4
- JVTAAEKCZFNVCJ-UHFFFAOYSA-N lactic acid Chemical compound CC(O)C(O)=O JVTAAEKCZFNVCJ-UHFFFAOYSA-N 0.000 description 4
- 235000014653 Carica parviflora Nutrition 0.000 description 3
- 241000243321 Cnidaria Species 0.000 description 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000007667 floating Methods 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- PAYRUJLWNCNPSJ-UHFFFAOYSA-N Aniline Chemical compound NC1=CC=CC=C1 PAYRUJLWNCNPSJ-UHFFFAOYSA-N 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 2
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 2
- 229910021529 ammonia Inorganic materials 0.000 description 2
- 150000004945 aromatic hydrocarbons Chemical class 0.000 description 2
- 238000011109 contamination Methods 0.000 description 2
- 238000009713 electroplating Methods 0.000 description 2
- 235000014655 lactic acid Nutrition 0.000 description 2
- 239000010985 leather Substances 0.000 description 2
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 241000894007 species Species 0.000 description 2
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- LEVWYRKDKASIDU-QWWZWVQMSA-N D-cystine Chemical compound OC(=O)[C@H](N)CSSC[C@@H](N)C(O)=O LEVWYRKDKASIDU-QWWZWVQMSA-N 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 229910002651 NO3 Inorganic materials 0.000 description 1
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 description 1
- JVMRPSJZNHXORP-UHFFFAOYSA-N ON=O.ON=O.ON=O.N Chemical compound ON=O.ON=O.ON=O.N JVMRPSJZNHXORP-UHFFFAOYSA-N 0.000 description 1
- 241000269799 Perca fluviatilis Species 0.000 description 1
- 206010000269 abscess Diseases 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 239000003570 air Substances 0.000 description 1
- 239000012080 ambient air Substances 0.000 description 1
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 description 1
- 229910052785 arsenic Inorganic materials 0.000 description 1
- RQNWIZPPADIBDY-UHFFFAOYSA-N arsenic atom Chemical compound [As] RQNWIZPPADIBDY-UHFFFAOYSA-N 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000031018 biological processes and functions Effects 0.000 description 1
- 238000009395 breeding Methods 0.000 description 1
- 230000001488 breeding effect Effects 0.000 description 1
- 229910052793 cadmium Inorganic materials 0.000 description 1
- BDOSMKKIYDKNTQ-UHFFFAOYSA-N cadmium atom Chemical compound [Cd] BDOSMKKIYDKNTQ-UHFFFAOYSA-N 0.000 description 1
- 150000001720 carbohydrates Chemical class 0.000 description 1
- 239000013043 chemical agent Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000011284 combination treatment Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 229960003067 cystine Drugs 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- DNJIEGIFACGWOD-UHFFFAOYSA-N ethanethiol Chemical compound CCS DNJIEGIFACGWOD-UHFFFAOYSA-N 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 229920002521 macromolecule Polymers 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 1
- 229910052753 mercury Inorganic materials 0.000 description 1
- 230000000813 microbial effect Effects 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 238000006396 nitration reaction Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000000243 photosynthetic effect Effects 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 150000003464 sulfur compounds Chemical class 0.000 description 1
- 229910021653 sulphate ion Inorganic materials 0.000 description 1
- 230000009469 supplementation Effects 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/30—Wastewater or sewage treatment systems using renewable energies
- Y02W10/37—Wastewater or sewage treatment systems using renewable energies using solar energy
Abstract
The invention discloses an ecological fungus bed sewage treatment process, which comprises the following steps of (1) pool building: foam ceramics are arranged at the pool bottom, and anaerobic beer sludge is added; and (2) bacterium culture: culture agents of NaCl, Na2S4O6.2H2O, KH2PO4, C6H12O6, C6H8O7, NH4Cl and C3H5NaO3 are added, the ratio of carbon: nitrogen: phosphorus is (200-300):5:1, andprepared bacterial stains are added according to a ratio of 1:10000; and (3) pollution addition: industrial sewage is added from the pool bottom after three-week culture, H2S, SS, SO4<2->, Cr, Pb, COD (Chemical Oxygen Demand) and chromaticity are monitored, when the removal rate reaches 70 percent, the sewage is gradually replenished, the mud water is discharged out, and the removal rate is maintained to be stabilized at 60 percent. The process belongs to an outsourcing type sewage treatment process, no H2S is released, and the process has the characteristics that the impact resistance is high, the efficiency is high, in addition, the use is simple and convenient, and the like.
Description
Technical field
The present invention relates to a kind of sewage treatment process, relate in particular to a kind of ecological bacterium bed sewage treatment process.
Background technology
Contain heavy metal, insoluble colloid and heterocyclic sewage and generally must adopt chemical method and biological process combination treatment at present.In the industry because reduce between sulfide and heavy metal, the macromolecule organic, do not dissolve, curing, cystine linkage and sour volatile sulfur compounds relations such as (AVS), therefore generally having a large amount of sulfate radicals to exist in this class sewage, will be acidication through anaerobic biological treatment generally.Problem is that anaerobic process sulphate reducing bacteria (SRB) is oxidized to H to sulfate radical
2S disengages, just common sewage stench phenomenon.This also is the problem that treating processes bothers most.If add chemical agent destructible anaerobic system again in this process.Both at home and abroad various specific aim dominant bacterias have been cultivated in the laboratory for addressing this problem in recent years, but because this class sewage relative complex, if simply some bacterial classification is applied to this class sewage, difficulty be effective and culture success ratio very low, and this process is the key of later stage biological nitration.
Our these type of sewage characteristics of comprehensive all conglomeraties are intended to develop ecological bacterium bed sewage disposal technology and address this problem for this reason.
Summary of the invention
For solving the problems of the technologies described above, the object of the present invention is to provide a kind of ecological bacterium bed sewage treatment process, this technology is kind of a straddle sewage treatment process, no H
2S disengages, and has strong shock resistance, characteristics such as efficient and easy to use.
Technology of the present invention comprises the steps:
(1), build the pond: set up the pond, foamed ceramics is installed at the bottom of the pond, add anaerobism beer mud, organic loading is 2-3kgCOD/ (m
3D); PH is at 7.0-7.2, and temperature is 30-43 ℃, and redox potential is-(70-80) mv;
(2), bacteria: add NaCl, Na
2S
4O
62H
2O, KH
2PO
4, C
6H
12O
6, C
6H
8O
7, NH
4Cl, C
3H
5NaO
3Nutrient chemical, carbon: nitrogen: phosphorus is 200-300: 5: 1, according to the bacterial classification that adding in 1: 10000 prepares, single bacterial classification strain quantitative proportion comprised the sulphur bacteria of methanobacteria and the 7-8% of 9-10% at 5-20%;
(3), add dirt: at the bottom of the pond, add industry sewage after cultivating for 3 weeks, monitoring H
2S, SS, SO
4 2-, Cr, Pb, COD and colourity treats that clearance reaches 70%, supply sewage and discharge muddy water gradually safeguards that above-mentioned clearance is stabilized in 60% again; In above-mentioned, described industry sewage is for containing heavy metal, insoluble colloid and heterocyclic sewage.
Preferably,
The size in pond is 6 meters of 3 meters * of the high 5 meters * of length and width in the step (1), and the anaerobism beer mud of adding is 2000 liters; The nutrient chemical that adds in the step (2) is 100gNaCl, 100gNa
2S
4O
62H
2O, 34gKH
2PO
4, 2700gC
6H
12O
6, 2880gC
6H
8O
7, 67gNH
4Cl, 3640gC
3H
5NaO
3Adding industry sewage in the step (3) is 5000 liters.
Temperature is 35-38 ℃ in the step (1).
Regularly detect and additional NH in the step (1)
4Cl makes pH maintain 7.0-7.2.
Redox potential is by ORP instrument periodic monitor in the step (1), keeps redox potential and is-(70-80) mv.
Increasing steps A between step (1) and the step (3): the air in the inflated with nitrogen displacement pool of pond.
The preparation method of foamed ceramics is as follows in the step (1): adopting nanometer silicon carbide is that raw material passes through evaporation and migration at the supercritical state subparticle, at macrobead connection section sintering, thereby macrobead is coupled together, and forms foamed ceramics.
This ecological bacterium bed sewage treatment process is kind of a straddle sewage treatment process, no H
2S disengages, and has strong shock resistance, characteristics such as efficient and easy to use, contains higher concentration heavy metal, insoluble colloid and heterocyclic sewage in processing especially and more embodies this process advantage.
Embodiment
Can further understand the present invention by specific embodiments of the invention given below, but they not limitation of the invention.Some nonessential conversion, improvement and adjustment for those skilled in the art does according to the foregoing invention content also are considered as dropping in protection scope of the present invention.
Method of the present invention and principle are as follows:
Deep-sea coral bed is the typical anaerobic ecosystem, is that deep-sea ecology is the most intensive, and circulation is the most concentrated place of beginning eventually, therefore also is the place of the enrichment of anaerobic species.The there does not have light, no photosynthetic, anaerobic, and bottom-dwelling is mainly by changing the H that can synthesize the ejection of bacterium (sulphur bacteria) oxidation hot spring
2The energy that S obtains, and then with the acquisition of the C synthetic carbohydrate in water food source.Adopt nano ceramics emulation deep-sea coral bed and beer mud as carrier, cultivation complex vitriolate reduction bacterium, sulphur bacteria, milk-acid bacteria, methanobacteria, tens class anaerobic species such as floating mustiness bacterium, anaerobism nitrifier and denitrifying bacteria form ecological flora, carry out enrichment culture by bacterium bed and substratum in advance, and progressively adjust water quality environment by the simulation direction.
The hydrogen that complex vitriolate reduction bacterium (SRB) utilizes microbial film to produce is H with sulfate reduction
2S, H
2S and chromium, nickel, cadmium, arsenic, mercury etc. form sulfide precipitation, another part H
2S is oxidized to elemental sulfur by sulphur bacteria and assimilates CO simultaneously
2Composite S RB and sulphur bacteria work provide a large amount of H simultaneously
+, milk-acid bacteria, methanobacteria utilize H
+Organic molecule and heterocycle molecule C-C opened long-chain is converted into short chain, provide ammonia source nitrogenous source for floating mustiness bacterium, anaerobism nitrifier simultaneously, floating mustiness bacterium, anaerobism nitrifier further are converted into nitrate to ammonia source nitrogenous source and clean bacterium bed abscess simultaneously, are converted into N by denitrifying bacteria again
2Fall to the ecological chain that the pond water surface reaches nitrogen envelope effect, through artificial supplementation sewage and discharge throw out, form the ecological flora recycle system, each bacterial classification is shared out the work and helped one another in each link and is made system balancing.Deep-sea coral bed and other nature ecosystem are to rely on H
2S, solar energy circulate ecological chain, and the present invention's dependence is the ecosystem that artificial spoil disposal and supply sewage make the ecological chain circulation.Wherein the bacterial classification preparation is solidified by factors such as substratum, pH and temperature adjusting single culture curing and different ratios coexistence in the laboratory according to each bacterial classification living environment feature, obtains the environmental data of sewage lagoon enrichment culture.
Technology of the present invention is as follows:
(1), build the pond: set up the pond, foamed ceramics is installed at the bottom of the pond, add anaerobism beer mud, organic loading is 2-3kgCOD/ (m
3D); PH is at 7.0-7.2, and temperature is 30-43 ℃, and redox potential is-(70-80) mv;
(2), bacteria: add NaCl, Na
2S
4O
62H
2O, KH
2PO
4, C
6H
12O
6, C
6H
8O
7, NH
4Cl, C
3H
5NaO
3Nutrient chemical, carbon: nitrogen: phosphorus is 200-300: 5: 1, according to the bacterial classification that adding in 1: 10000 prepares, single bacterial classification strain quantitative proportion comprised the sulphur bacteria of methanobacteria and the 7-8% of 9-10% at 5-20%;
(3), add dirt: at the bottom of the pond, add industry sewage after cultivating for 3 weeks, monitoring H
2S, SS, SO
4 2-, Cr, Pb, COD and colourity treats that clearance reaches 70%, supply sewage and discharge muddy water gradually safeguards that above-mentioned clearance is stabilized in 60% again; In above-mentioned, described industry sewage is for containing heavy metal, insoluble colloid and heterocyclic sewage.
The technology according to the present invention, specifically implement as follows:
First phase of construction is selected plating, leather, aromatic hydrocarbons, 4 industries of pharmacy, design the pond of 6 meters of 3 meters * of two high 5 meters * of length and width, one of them pond can be dropped into emulation at once and be safeguarded, another pond can be used as standby, 2.7 meters foamed ceramicses of two 2 meters * are installed at the bottom of each pond, each adds 2000 liters of lower concentration anaerobism beer mud, and organic loading is 2-3kgCOD/ (m
3D).Consider that methanogen is strict to growth conditions, the pH value is controlled at 7.0-7.2, regularly detects and additional NH
4Cl.Temperature is 35-38 ℃, and gradient of temperature generally is no more than 5 ℃ in short-term.Redox potential is-(70-80) mv and by ORP instrument periodic monitor, fill the nitrogen displacement in case of necessity, and because that methanobacteria requires growing environment is comparatively strict, increase the growth that anaerobic condition is conducive to methanobacteria.Add 100gNaCl, 100gNa in the different industries pond
2S
4O
62H
2O, 34gKH
2PO
4, 2700gC
6H
12O
6, 2880gC
6H
8O
7, 67gNH
4Cl, 3640gC
3H
5NaO
3Nutrient chemical, carbon: nitrogen: phosphorus is controlled to be 200-300: 5: 1.According to the bacterial classification that adding in 1: 10000 prepares, single bacterial classification strain quantitative proportion comprises the methanobacteria and the sulphur bacteria that is generally 7-8% in leather or aromatic hydrocarbons pond that are generally 9-10% generally at 5-20%.At the bottom of the pond, add 5000 liters of industry sewage after cultivating for 3 weeks, monitoring H
2S, SS, SO
4 2-, Cr, Pb, COD and colourity treats that clearance reaches 70%, supply sewage and discharge muddy water gradually safeguards that above-mentioned every clearance is stabilized in 60% again.
During application, select the simulator approaching with treatment sewage, to system progressively add treatment sewage, progressively applied environment is treated in emulation, regulates ecological bacterium bed simultaneously and makes it to shake down, success back is transplanted to applied environment to ecological bacterium bed and is safeguarded and produce.
Remove H
2S is one of emphasis of technology of the present invention, in this specific embodiment foamed ceramics adopt nanometer silicon carbide be raw material at the supercritical state subparticle by evaporation and migration, at macrobead connection section sintering, thereby macrobead coupled together and form foamed ceramics.Because each material only is connected with other particles, thereby in sintered compact, form a large amount of three-dimensional perforation ducts on several points, have big specific surface area (5000m
2/ m
3), good three-dimensional network connectivity structure, chemical property is stable, and anti-bacterium hydrolysis, acid-alkali-corrosive-resisting are conducive to each bacterial classification and perch breeding and share out the work and help one another work, promote ecological chain to form.
To Jinjiang electroplating sewerage factory, Putian percolate sewage disposal obtains following effect with technology of the present invention, referring to table 1 and table 2.
Table 1 Jinjiang electroplating sewerage factory quotes ecological bacterium bed water treatment data
| Contamination index | Water inlet | Water outlet | Go rate (%) |
| H 2S(μg/m 3) | 286 | 40 | 86 |
| Ni(mg/L) | 76 | 1.6 | 97 |
| Cr(mg/L) | 16 | 0.3 | 98 |
| COD(mg/L) | 3640 | 250 | 93 |
| BOD 5(mg/L) | 3100 | 200 | 93 |
Table 2 Putian percolate is quoted ecological bacterium bed water treatment data
| Contamination index | Water inlet | Water outlet | Go rate (%) |
| H 2S(μg/m 3) | 597 | 50 | 91 |
| Pb(mg/L) | 9.7 | 0.8 | 92 |
| Aniline (mg/L) | 300 | 1.5 | 99 |
| SS(mg/L) | 1200 | 150 | 87 |
| COD(mg/L) | 25000 | 610 | 98 |
| BOD 5(mg/L) | 19000 | 458 | 97 |
By table 1 and table 2 as can be seen, the pollutants removal rate of two plant effuents is 70%-90% (being up to more than 90%), H
2The S removal effect is remarkable, even reach " ambient air quality " (GB3095-1996) secondary limit value, and the accumulation of pollutents such as nitrite nitrogen do not occur, the ammonia nitrogen mass concentration in the polluted raw can reach " sewage comprehensive discharge " GB8978-1996 secondary standard.Therefore ecological bacterium bed sewage treatment process is a kind of efficient, practical and easy sewage water treatment method.
Claims (7)
1. an ecological bacterium bed sewage treatment process is characterized in that: comprise the steps:
(1), build the pond: set up the pond, foamed ceramics is installed at the bottom of the pond, add anaerobism beer mud, organic loading is 2-3kgCOD/ (m
3D); PH is at 7.0-7.2, and temperature is 30-43 ℃, and redox potential is-(70-80) mv;
(2), bacteria: add NaCl, Na
2S
4O
62H
2O, KH
2P
O4, C
6H
12O
6, C
6H
8O
7, NH
4Cl, C
3H
5NaO
3Nutrient chemical, carbon: nitrogen: phosphorus is 200-300: 5: 1, according to the bacterial classification that adding in 1: 10000 prepares, single bacterial classification strain quantitative proportion comprised the sulphur bacteria of methanobacteria and the 7-8% of 9-10% at 5-20%;
(3), add dirt: at the bottom of the pond, add industry sewage after cultivating for 3 weeks, monitoring H
2S, SS, SO
4 2-, Cr, Pb, COD and colourity treats that clearance reaches 70%, supply sewage and discharge muddy water gradually safeguards that above-mentioned clearance is stabilized in 60% again; In above-mentioned, described industry sewage is for containing heavy metal, insoluble colloid and heterocyclic sewage.
2. ecological bacterium bed sewage treatment process as claimed in claim 1 is characterized in that:
The size in pond is 6 meters of 3 meters * of the high 5 meters * of length and width in the step (1), and the anaerobism beer mud of adding is 2000 liters;
The nutrient chemical that adds in the step (2) is 100gNaCl, 100gNa
2S
4O
62H
2O, 34gKH
2PO
4, 2700gC
6H
12O
6, 2880gC
6H
8O
7, 67gNH
4Cl, 3640gC
3H
5NaO
3
Adding industry sewage in the step (3) is 5000 liters.
3. ecological bacterium bed sewage treatment process as claimed in claim 1 is characterized in that: temperature is 35-38 ℃ in the step (1).
4. ecological bacterium bed sewage treatment process as claimed in claim 1 is characterized in that: regularly detect and additional NH in the step (1)
4Cl makes pH maintain 7.0-7.2.
5. ecological bacterium bed sewage treatment process as claimed in claim 1 is characterized in that: redox potential is kept redox potential and is-(70-80) mv by ORP instrument periodic monitor in the step (1).
6. ecological bacterium bed sewage treatment process as claimed in claim 1 is characterized in that: increasing steps A between step (1) and the step (3): the air in the inflated with nitrogen displacement pool of pond.
7. ecological bacterium bed sewage treatment process as claimed in claim 1, it is characterized in that: the preparation method of foamed ceramics is as follows in the step (1): adopting nanometer silicon carbide is that raw material passes through evaporation and migration at the supercritical state subparticle, at macrobead connection section sintering, thereby macrobead is coupled together, form foamed ceramics.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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