CN109081454A - Iron restores biochemical treatment to the decrement method of landfill leachate membrane process concentrate - Google Patents
Iron restores biochemical treatment to the decrement method of landfill leachate membrane process concentrate Download PDFInfo
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- CN109081454A CN109081454A CN201811050588.6A CN201811050588A CN109081454A CN 109081454 A CN109081454 A CN 109081454A CN 201811050588 A CN201811050588 A CN 201811050588A CN 109081454 A CN109081454 A CN 109081454A
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- iron
- mixed
- reduction method
- hematite
- landfill leachate
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- 238000000034 method Methods 0.000 title claims abstract description 71
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 title claims abstract description 50
- 239000012528 membrane Substances 0.000 title claims abstract description 32
- 229910052742 iron Inorganic materials 0.000 title claims abstract description 25
- 239000012141 concentrate Substances 0.000 title claims abstract description 24
- 230000008569 process Effects 0.000 title claims abstract description 19
- 238000011282 treatment Methods 0.000 title claims abstract description 19
- 239000000149 chemical water pollutant Substances 0.000 title claims abstract description 15
- 241000894006 Bacteria Species 0.000 claims abstract description 27
- LIKBJVNGSGBSGK-UHFFFAOYSA-N iron(3+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[Fe+3].[Fe+3] LIKBJVNGSGBSGK-UHFFFAOYSA-N 0.000 claims abstract description 27
- 239000007788 liquid Substances 0.000 claims abstract description 22
- 230000009467 reduction Effects 0.000 claims abstract description 19
- 239000000126 substance Substances 0.000 claims abstract description 13
- 238000007254 oxidation reaction Methods 0.000 claims abstract description 6
- 239000002245 particle Substances 0.000 claims abstract description 6
- 230000000813 microbial effect Effects 0.000 claims abstract description 3
- 229910052595 hematite Inorganic materials 0.000 claims abstract 8
- 239000011019 hematite Substances 0.000 claims abstract 8
- 239000000370 acceptor Substances 0.000 claims abstract 2
- 239000000969 carrier Substances 0.000 claims abstract 2
- 239000002609 medium Substances 0.000 claims description 14
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 8
- 239000001963 growth medium Substances 0.000 claims description 8
- 238000011081 inoculation Methods 0.000 claims description 8
- 239000011259 mixed solution Substances 0.000 claims description 8
- 241000320697 Aquabacterium Species 0.000 claims description 6
- 241000589941 Azospirillum Species 0.000 claims description 6
- 241000193385 Geobacillus stearothermophilus Species 0.000 claims description 6
- 241000216643 Hydrogenophaga Species 0.000 claims description 6
- 241000194036 Lactococcus Species 0.000 claims description 6
- 241000589516 Pseudomonas Species 0.000 claims description 6
- 241000736110 Sphingomonas paucimobilis Species 0.000 claims description 6
- 239000000243 solution Substances 0.000 claims description 6
- 239000007790 solid phase Substances 0.000 claims description 5
- 238000009630 liquid culture Methods 0.000 claims description 4
- 229910052757 nitrogen Inorganic materials 0.000 claims description 4
- 238000000926 separation method Methods 0.000 claims description 4
- 235000013343 vitamin Nutrition 0.000 claims description 4
- 239000011782 vitamin Substances 0.000 claims description 4
- 229940088594 vitamin Drugs 0.000 claims description 4
- 229930003231 vitamin Natural products 0.000 claims description 4
- 150000003722 vitamin derivatives Chemical class 0.000 claims description 4
- 230000001580 bacterial effect Effects 0.000 claims description 3
- 229960002413 ferric citrate Drugs 0.000 claims 1
- NPFOYSMITVOQOS-UHFFFAOYSA-K iron(III) citrate Chemical compound [Fe+3].[O-]C(=O)CC(O)(CC([O-])=O)C([O-])=O NPFOYSMITVOQOS-UHFFFAOYSA-K 0.000 claims 1
- 241000894007 species Species 0.000 claims 1
- 239000011573 trace mineral Substances 0.000 claims 1
- 235000013619 trace mineral Nutrition 0.000 claims 1
- 239000013585 weight reducing agent Substances 0.000 claims 1
- 239000005416 organic matter Substances 0.000 abstract description 8
- 239000010813 municipal solid waste Substances 0.000 description 13
- 239000012530 fluid Substances 0.000 description 11
- 238000005325 percolation Methods 0.000 description 9
- 238000006243 chemical reaction Methods 0.000 description 7
- 239000003864 humus Substances 0.000 description 7
- 238000012545 processing Methods 0.000 description 7
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 6
- TWRXJAOTZQYOKJ-UHFFFAOYSA-L Magnesium chloride Chemical compound [Mg+2].[Cl-].[Cl-] TWRXJAOTZQYOKJ-UHFFFAOYSA-L 0.000 description 6
- -1 Methyl tertiary amine Chemical class 0.000 description 6
- 230000015572 biosynthetic process Effects 0.000 description 6
- MGWAVDBGNNKXQV-UHFFFAOYSA-N diisobutyl phthalate Chemical compound CC(C)COC(=O)C1=CC=CC=C1C(=O)OCC(C)C MGWAVDBGNNKXQV-UHFFFAOYSA-N 0.000 description 6
- HSEMFIZWXHQJAE-UHFFFAOYSA-N hexadecanamide Chemical compound CCCCCCCCCCCCCCCC(N)=O HSEMFIZWXHQJAE-UHFFFAOYSA-N 0.000 description 6
- IPCSVZSSVZVIGE-UHFFFAOYSA-N hexadecanoic acid Chemical compound CCCCCCCCCCCCCCCC(O)=O IPCSVZSSVZVIGE-UHFFFAOYSA-N 0.000 description 6
- WWZKQHOCKIZLMA-UHFFFAOYSA-N octanoic acid Chemical compound CCCCCCCC(O)=O WWZKQHOCKIZLMA-UHFFFAOYSA-N 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- UHOVQNZJYSORNB-UHFFFAOYSA-N monobenzene Natural products C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 5
- 235000015097 nutrients Nutrition 0.000 description 5
- UIIMBOGNXHQVGW-UHFFFAOYSA-M sodium bicarbonate Substances [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 description 5
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 4
- 230000008901 benefit Effects 0.000 description 4
- 230000003647 oxidation Effects 0.000 description 4
- UJJYKLUPCXMNIC-UHFFFAOYSA-N 2,3,4,5,6-pentamethyl-1h-indole Chemical class CC1=C(C)C(C)=C2C(C)=C(C)NC2=C1 UJJYKLUPCXMNIC-UHFFFAOYSA-N 0.000 description 3
- PUKLDDOGISCFCP-JSQCKWNTSA-N 21-Deoxycortisone Chemical class C1CC2=CC(=O)CC[C@]2(C)[C@@H]2[C@@H]1[C@@H]1CC[C@@](C(=O)C)(O)[C@@]1(C)CC2=O PUKLDDOGISCFCP-JSQCKWNTSA-N 0.000 description 3
- QJZYHAIUNVAGQP-UHFFFAOYSA-N 3-nitrobicyclo[2.2.1]hept-5-ene-2,3-dicarboxylic acid Chemical class C1C2C=CC1C(C(=O)O)C2(C(O)=O)[N+]([O-])=O QJZYHAIUNVAGQP-UHFFFAOYSA-N 0.000 description 3
- JDRMYOQETPMYQX-UHFFFAOYSA-M 4-methoxy-4-oxobutanoate Chemical compound COC(=O)CCC([O-])=O JDRMYOQETPMYQX-UHFFFAOYSA-M 0.000 description 3
- XZOYHFBNQHPJRQ-UHFFFAOYSA-N 7-methyloctanoic acid Chemical compound CC(C)CCCCCC(O)=O XZOYHFBNQHPJRQ-UHFFFAOYSA-N 0.000 description 3
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonia chloride Chemical compound [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 description 3
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 description 3
- 239000005635 Caprylic acid (CAS 124-07-2) Substances 0.000 description 3
- KRKNYBCHXYNGOX-UHFFFAOYSA-K Citrate Chemical compound [O-]C(=O)CC(O)(CC([O-])=O)C([O-])=O KRKNYBCHXYNGOX-UHFFFAOYSA-K 0.000 description 3
- FCYKAQOGGFGCMD-UHFFFAOYSA-N Fulvic acid Chemical class O1C2=CC(O)=C(O)C(C(O)=O)=C2C(=O)C2=C1CC(C)(O)OC2 FCYKAQOGGFGCMD-UHFFFAOYSA-N 0.000 description 3
- 239000007836 KH2PO4 Substances 0.000 description 3
- VMHLLURERBWHNL-UHFFFAOYSA-M Sodium acetate Chemical compound [Na+].CC([O-])=O VMHLLURERBWHNL-UHFFFAOYSA-M 0.000 description 3
- JDRMYOQETPMYQX-UHFFFAOYSA-N butanedioic acid monomethyl ester Natural products COC(=O)CCC(O)=O JDRMYOQETPMYQX-UHFFFAOYSA-N 0.000 description 3
- 239000001110 calcium chloride Substances 0.000 description 3
- 229910001628 calcium chloride Inorganic materials 0.000 description 3
- 235000014113 dietary fatty acids Nutrition 0.000 description 3
- 239000000194 fatty acid Substances 0.000 description 3
- 229930195729 fatty acid Natural products 0.000 description 3
- 150000004665 fatty acids Chemical class 0.000 description 3
- 239000002509 fulvic acid Chemical class 0.000 description 3
- 229940095100 fulvic acid Drugs 0.000 description 3
- 150000008282 halocarbons Chemical class 0.000 description 3
- XLYOFNOQVPJJNP-ZSJDYOACSA-N heavy water Substances [2H]O[2H] XLYOFNOQVPJJNP-ZSJDYOACSA-N 0.000 description 3
- 239000004021 humic acid Substances 0.000 description 3
- 229910001629 magnesium chloride Inorganic materials 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Natural products C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 3
- 229910000402 monopotassium phosphate Inorganic materials 0.000 description 3
- 229960002446 octanoic acid Drugs 0.000 description 3
- FATBGEAMYMYZAF-KTKRTIGZSA-N oleamide Chemical compound CCCCCCCC\C=C/CCCCCCCC(N)=O FATBGEAMYMYZAF-KTKRTIGZSA-N 0.000 description 3
- FATBGEAMYMYZAF-UHFFFAOYSA-N oleicacidamide-heptaglycolether Natural products CCCCCCCCC=CCCCCCCCC(N)=O FATBGEAMYMYZAF-UHFFFAOYSA-N 0.000 description 3
- XNGIFLGASWRNHJ-UHFFFAOYSA-N phthalic acid Chemical compound OC(=O)C1=CC=CC=C1C(O)=O XNGIFLGASWRNHJ-UHFFFAOYSA-N 0.000 description 3
- GNSKLFRGEWLPPA-UHFFFAOYSA-M potassium dihydrogen phosphate Chemical compound [K+].OP(O)([O-])=O GNSKLFRGEWLPPA-UHFFFAOYSA-M 0.000 description 3
- 238000002360 preparation method Methods 0.000 description 3
- 238000012216 screening Methods 0.000 description 3
- 229910000030 sodium bicarbonate Inorganic materials 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- VQKFNUFAXTZWDK-UHFFFAOYSA-N alpha-methylfuran Natural products CC1=CC=CO1 VQKFNUFAXTZWDK-UHFFFAOYSA-N 0.000 description 2
- 239000003344 environmental pollutant Substances 0.000 description 2
- 235000011187 glycerol Nutrition 0.000 description 2
- BDAGIHXWWSANSR-UHFFFAOYSA-N methanoic acid Natural products OC=O BDAGIHXWWSANSR-UHFFFAOYSA-N 0.000 description 2
- 231100000719 pollutant Toxicity 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 238000001223 reverse osmosis Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- DKGAVHZHDRPRBM-UHFFFAOYSA-N tert-butyl alcohol Substances CC(C)(C)O DKGAVHZHDRPRBM-UHFFFAOYSA-N 0.000 description 2
- 125000000999 tert-butyl group Chemical group [H]C([H])([H])C(*)(C([H])([H])[H])C([H])([H])[H] 0.000 description 2
- BGHCVCJVXZWKCC-UHFFFAOYSA-N tetradecane Chemical compound CCCCCCCCCCCCCC BGHCVCJVXZWKCC-UHFFFAOYSA-N 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- QTWJRLJHJPIABL-UHFFFAOYSA-N 2-methylphenol;3-methylphenol;4-methylphenol Chemical compound CC1=CC=C(O)C=C1.CC1=CC=CC(O)=C1.CC1=CC=CC=C1O QTWJRLJHJPIABL-UHFFFAOYSA-N 0.000 description 1
- OSWFIVFLDKOXQC-UHFFFAOYSA-N 4-(3-methoxyphenyl)aniline Chemical compound COC1=CC=CC(C=2C=CC(N)=CC=2)=C1 OSWFIVFLDKOXQC-UHFFFAOYSA-N 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-M Bicarbonate Chemical group OC([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-M 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- VTLYFUHAOXGGBS-UHFFFAOYSA-N Fe3+ Chemical compound [Fe+3] VTLYFUHAOXGGBS-UHFFFAOYSA-N 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 230000007059 acute toxicity Effects 0.000 description 1
- 231100000403 acute toxicity Toxicity 0.000 description 1
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000033558 biomineral tissue development Effects 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007665 chronic toxicity Effects 0.000 description 1
- 231100000160 chronic toxicity Toxicity 0.000 description 1
- 230000001112 coagulating effect Effects 0.000 description 1
- 238000011026 diafiltration Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000005189 flocculation Methods 0.000 description 1
- 230000016615 flocculation Effects 0.000 description 1
- 235000019253 formic acid Nutrition 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000003446 ligand Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000002503 metabolic effect Effects 0.000 description 1
- 229910021645 metal ion Inorganic materials 0.000 description 1
- 244000000010 microbial pathogen Species 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
- 125000001421 myristyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- YWFWDNVOPHGWMX-UHFFFAOYSA-N n,n-dimethyldodecan-1-amine Chemical compound CCCCCCCCCCCCN(C)C YWFWDNVOPHGWMX-UHFFFAOYSA-N 0.000 description 1
- OCKPCBLVNKHBMX-UHFFFAOYSA-N n-butyl-benzene Natural products CCCCC1=CC=CC=C1 OCKPCBLVNKHBMX-UHFFFAOYSA-N 0.000 description 1
- 238000001728 nano-filtration Methods 0.000 description 1
- 244000039328 opportunistic pathogen Species 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000011946 reduction process Methods 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 150000003512 tertiary amines Chemical class 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
- 229910003145 α-Fe2O3 Inorganic materials 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
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/34—Biological treatment of water, waste water, or sewage characterised by the microorganisms used
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/28—Anaerobic digestion processes
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/06—Contaminated groundwater or leachate
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Microbiology (AREA)
- Biodiversity & Conservation Biology (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Medicines Containing Material From Animals Or Micro-Organisms (AREA)
Abstract
一种铁还原生化处理对垃圾渗滤液膜工艺浓缩液的减量方法：在厌氧环境下，以赤铁矿颗粒为微生物载体及电子受体，引入混合铁还原菌种负载于赤铁矿表面的减量方法介质，通过化学配位和生物氧化反应，去除垃圾渗滤液中难降解有机物以及小分子有机物。本发明可有效削减垃圾渗滤液传统膜工艺膜浓缩液的产生量，同时降低膜工艺成本。
A method for iron reduction biochemical treatment to reduce the concentrated liquid of landfill leachate membrane process: under anaerobic environment, use hematite particles as microbial carriers and electron acceptors, and introduce mixed iron-reducing bacteria to load on the surface of hematite The reduction method medium, through chemical coordination and biological oxidation reaction, removes refractory organic matter and small molecular organic matter in landfill leachate. The invention can effectively reduce the production amount of membrane concentrate in traditional membrane technology of landfill leachate, and reduce the cost of membrane technology at the same time.
Description
Technical field
The present invention relates to the improved methods of landfill leachate membrane process, relate more specifically to iron reduction biochemical treatment to rubbish
The decrement method of percolation liquid membrane technique concentrate.
Background technique
The percolate generated in landfill yard is a kind of high-concentration waste water with acute and chronic toxicity.In " house refuse
Landfill percolate handles engineering legislation (HJ-564-2010) " in, percolate treating process can be divided into pretreatment, biology
It handles and three kinds of advanced treating.The percolate processing of China's refuse landfill first passes through flocculation precipitation pretreatment mostly, is passing through
O/A-MBR group technology removes the pollutant in landfill leachate, and COD concentration can control in 400-500mg/L, ammonia nitrogen after processing
Removal rate be 80%-90%, then major part treatment process in can use reverse osmosis membrane processing percolate, treated diafiltration
Liquid can be with qualified discharge.
Landfill leachate membrane process concentrate (hereinafter referred to as film concentrate) is landfill leachate after biodegrade
The residual solution retained by nanofiltration (or reverse osmosis membrane) does not have biodegradability generally, and main component is humus material, in palm fibre
Black, organic concentration is very high, and contains a large amount of metal ion, mishandling to easily cause serious secondary pollution.
The volume of film concentrate accounts for the 8-20% of landfill leachate stoste volume, and transfer freight is high.At conventional film concentrate
Reason method such as coagulating sedimentation, evaporation and concentration or absorption are burned etc. or treatment effect is bad or use condition is harsh, processing cost
It is higher, it is therefore necessary to find the decrement method of new membrane concentrate.
Some iron also pathogenic microorganism can be using Fe (III) as electron acceptor, with the reduction-states substance such as organic matter or hydrogen
As electron donor, vital metabolic activity is carried out.Some researches show that humus materials can be used as electron shuttle body, promotes three
The biological reducing process of valence iron oxide, and then accelerate the oxidation of reduction-state substance.It is mainly shown as: trivalent iron oxide
Humus material can be adsorbed, in the case where iron restores microbial action, the two forms ligand, accelerates organic matter anaerobism raw
The process of object oxidation.Bloodstone (α-Fe2O3) one kind as trivalent iron oxide, widely distributed in nature, reserves
It is higher.A large amount of research has proven to biochemical treatment ability of the bloodstone as electron acceptor to reduction-state pollutant at present.Red iron
Mine is that the iron of electron acceptor restores biochemical treatment process, and the reduction and processing for film concentrate have certain potentiality.
Summary of the invention
The purpose of the present invention is to provide a kind of reduction biochemical treatments of iron to the decrement method of film concentrate, also to mixing iron
The anaerobic biological oxidation organic matter process of opportunistic pathogen driving is strengthened, and provides a kind of economy for the decrement of conventional film concentration liquid measure and has
The method of effect.
To achieve the above object, iron reduction biochemical treatment provided by the invention subtracts landfill leachate membrane process concentrate
Amount method is:
Under anaerobic environment, using bloodstone particle as microbe carrier and electron acceptor, it is negative to introduce mixing iron-reducing bacterium kind
It is loaded in the decrement method medium on bloodstone surface, by chemical coordination and biooxidation reactions, removes difficult drop in landfill leachate
Solve organic matter and small organic molecule.
The decrement method, wherein for bloodstone by crushing and screening, partial size used is 2-4mm.
The decrement method, wherein mixing iron-reducing bacterium kind include Sphingomonas paucimobilis,
Genera Lactococcus、Genera Azospirillum、Geobacillus stearothermophilus、
Pseudomonas spp., Aquabacterium strains and Hydrogenophaga, by concentration ratio 5-7:10-12:4-6:
4-6:6-8:9-11:10-12 is mixed, the mixed bacteria of preparation Anaerobic culturel in iron-reducing bacterium fluid nutrient medium.
The decrement method, wherein iron-reducing bacterium Liquid Culture based formulas are as follows: NH4Cl 0.535g/L, KH2PO4
0.136g/L, MgCl2·6H2O 0.204g/L, CaCl2·2H2O 0.147g/L, NaHCO32.52g/L CH3COONa
0.82g/L, ironic citrate 0.735g/L, microelement mixed solution 10mL/L, vitamin mixed solution 10mL/L.
The decrement method, wherein mixing iron-reducing bacterium kind is carried on bloodstone surface and is divided into inoculation membrane formation method and oneself
Right biofilm method.
The decrement method, wherein inoculation membrane formation method is that bloodstone is soaked in the culture medium for including mixed bacteria
And it is continually fed into nitrogen, it is separated by solid-liquid separation, decrement method medium of the gained solid phase as concentrate.
The decrement method, wherein natural membrane method is that bloodstone is soaked in the culture medium for including mixed bacteria
It directly impregnates, then directly using solid, liquid mixed system as the decrement method medium of concentrate.
The invention has the advantages that and the utility model has the advantages that
(1) bloodstone and mixed bacteria (Sphingomonas paucimobilis, Genera used in the present invention
Lactococcus、Genera Azospirillum、Geobacillus stearothermophilus、Pseudomonas
Spp., Aquabacterium strains and Hydrogenophaga) it is widely distributed, cheap, the practicability of method is high；
(2) operating process of the present invention is easy, and additional energy source and manual maintenance are not necessarily in application process, is suitable for rubbish
The removal of hardly degraded organic substance and small organic molecule in percolate.
(3) method for treating garbage percolation liquid of the present invention takes full advantage of most ancient life process-anaerobic organism oxygen
The principle of change cuts down the yield of film concentrate, solves the problems, such as that the processing of rubbish percolation liquid membrane concentrate is difficult to a certain extent.
Detailed description of the invention
Fig. 1 is the principle that iron restores that rubbish percolation liquid membrane concentration output of fluid is cut down in biochemical treatment；
Fig. 2 is the process flow that iron restores that rubbish percolation liquid membrane concentration output of fluid is cut down in biochemical treatment；
Fig. 3 is the effect that iron restores that rubbish percolation liquid membrane concentration output of fluid is cut down in biochemical treatment, and wherein Fig. 3 a is that COD is dense
Degree, Fig. 3 b is DOC concentration, in figure: ■ is abiogenic reaction system, ▲ for biological reaction system, △ is Napier natural logrithm；
Fig. 4 is the organic component identification that iron restores that rubbish percolation liquid membrane concentration output of fluid is cut down in biochemical treatment, wherein Fig. 4 a
For abiogenic reaction system, Fig. 4 b is biological reaction system；In figure: 1 be to sylvan (9.62min), 2 is isononanoic acid
(10.23min), 3 be caprylic acid (12.23min), 4 be monomethyl succinate (13.68min), 5 be pentamethyl indoles
(15.99min), 6 be 3- butyne-2-alcohol (16.02), 7 be 3,5- di-tert-butyl alcohol (18.63min), 8 be myristyl two
Methyl tertiary amine (19.55min), 9 be hexadecylic acid (20.67min), 10 be diisobutyl phthalate (22.24min), 11 be
Palmitamide (23.74min), 12 be oleamide (25.19min), 13 be two 2- ethylhexyl of phthalic acid) ester
(26.22min)。
Specific embodiment
Present invention employs following technical solutions, in which:
For bloodstone by crushing and screening, partial size used is 2-4mm；
Under anaerobic environment, with bloodstone particle (partial size 2-4mm) for microbe carrier and electron acceptor, mixing iron is introduced
Reduction strain is carried on bloodstone surface in a manner of impregnating biofilm, by chemical coordination, biooxidation reactions, to garbage filter
Liquid (initial COD concentration 500-700mgL-1) in hardly degraded organic substance (such as the humus macromolecular such as humic acid, fulvic acid class)
And small organic molecule (such as volatile fatty acid, halogenated hydrocarbons etc.) removal, removal rate is up to 80% or more；Part has
Machine object includes: to sylvan, isononanoic acid, caprylic acid, monomethyl succinate, pentamethyl indoles, 3- butyne-2-alcohol, bis- uncle of 3,5-
Butyl benzene alcohol, dodecyldimethylamine base tertiary amine, hexadecylic acid, diisobutyl phthalate, palmitamide, oleamide, adjacent benzene two
Two 2- ethylhexyl of formic acid；
Mixing iron-reducing bacterium kind includes Sphingomonas paucimobilis, Genera Lactococcus, Genera
Azospirillum、Geobacillus stearothermophilus、Pseudomonas spp.、Aquabacterium
The strains such as strains and Hydrogenophaga are mixed, the mixed bacteria of preparation by concentration ratio 6:11:5:5:7:10:11
Anaerobic culturel 10~30 days in iron-reducing bacterium fluid nutrient medium；
The iron-reducing bacterium Liquid Culture based formulas are as follows: NH4Cl (0.535g/L), KH2PO4(0.136g/L), MgCl2·
6H2O (0.204g/L), CaCl2·2H2O (0.147g/L), NaHCO3(2.52g/L), CH3COONa (0.82g/L), ironic citrate
(0.735g/L), microelement mixed solution (10mL/L), vitamin mixed solution (10mL/L)；
The mixing iron-reducing bacterium kind is stored in 30% glycerine water solution to be utilized in the freezen protective at -80 DEG C, use
Fluid nutrient medium activates the mixed bacteria saved；
Microorganism, which impregnates biofilm mode, to be divided into: inoculation membrane formation method and natural membrane method.Inoculation membrane formation method is divided into following step
It is rapid: bloodstone being soaked in the culture medium for including mixed bacteria and is continually fed into nitrogen 12~24 hours；It is separated by solid-liquid separation, gained
Decrement method medium of the solid phase as concentrate.Natural membrane method is that bloodstone is soaked in the culture medium for including mixed bacteria
It directly impregnates 12-24 hours, then directly using solid, liquid mixed system as the decrement method medium of concentrate.
To make the objectives, technical solutions, and advantages of the present invention clearer, below in conjunction with specific embodiment, to this hair
It is bright to be described in further detail.
Decrement method working principle of the iron reduction biochemical treatment of the present invention to film concentrate are as follows:
As shown in Figure 1, the concentrate decrement method is under anaerobic environment, bloodstone particle (partial size 2-4mm) is served as
Microbe carrier and electron acceptor, introducing iron reduction mixed bacterial (Sphingomonas paucimobilis,
Lactococcus、Azospirillum、Geobacillus stearothermophilus、Pseudomonas spp.、
Aquabacterium strains and Hydrogenophaga), Humus organic matter (HA) plays chemical coordination in percolate
Organic matter biooxidation reactions are completed in effect, and to landfill leachate, (initial COD is 500-700mgL-1, BOD/COD < 0.3)
Middle hardly degraded organic substance (such as the macromoleculars such as humic acid, fulvic acid Humus) and small organic molecule (such as volatility
Fatty acid, halogenated hydrocarbons, benzene homologues etc.) removal, mineralization product is bicarbonate, carbon dioxide.The present invention can effectively cut down rubbish
The yield of percolate tradition membrane process film concentrate.
More specifically, by bloodstone by crushing and screening partial size as 2-4mm.It sieves obtained bloodstone and passes through inoculation membrane formation
It is mixed with the mode of natural membrane with iron-reducing bacterium kind is mixed, carries out impregnating load biofilm.The mixed bacteria
Sphingomonas paucimobilis、Genera Lactococcus、Genera Azospirillum、Geobacillus
Stearothermophilus, Pseudomonas spp., Aquabacterium strains and Hydrogenophaga.It presses
Strain concentration ratio 6:11:5:5:7:10:11 is mixed, the mixed bacteria of preparation Anaerobic culturel in iron reduction fluid nutrient medium
10-30 days.
The iron restores liquid culture medium prescription are as follows: NH4Cl (0.535g/L), KH2PO4(0.136g/L), MgCl2·6H2O
(0.204g/L), CaCl2·2H2O (0.147g/L), NaHCO3(2.52g/L), CH3COONa (0.82g/L), ironic citrate
(0.735g/L), microelement mixed solution (10mL/L), vitamin mixed solution (10mL/L).
The mixed bacteria, which is stored in 30% glycerine water solution, to be restored in the freezen protective at -80 DEG C, use using iron
Fluid nutrient medium activates the mixed bacteria saved.
The inoculation membrane formation method is divided into following steps: bloodstone is soaked in the culture medium for including mixed bacteria and is continued
It is passed through nitrogen 12-24 hours；It is separated by solid-liquid separation, decrement method solid-phase media of the gained solid phase as concentrate.
The iron reduction process is as shown in Figure 2 to film concentrate processing flow schematic diagram.The bloodstone for hanging film can be used for
To hardly degraded organic substance absorption and small organic molecule oxidation removal in garbage leachate treatment process, treated, and percolate can
Film process is carried out again.
Fig. 3 is the effect that iron restores that rubbish percolation liquid membrane concentration output of fluid is cut down in biochemical treatment, it is known that, initial COD concentration
500-700mg·L-1When, hardly degraded organic substance (such as the humus macromolecular such as humic acid, fulvic acid class) and small in percolate
Molecular organic (such as volatile fatty acid, halogenated hydrocarbons etc.) can be efficiently removed, and removal rate is up to 80% or more.Fig. 4 is
Iron restores the organic component identification that rubbish percolation liquid membrane concentration output of fluid is cut down in biochemical treatment, and partial organic substances include: to methyl
Phenol, isononanoic acid, caprylic acid, monomethyl succinate, pentamethyl indoles, 3- butyne-2-alcohol, 3,5- di-tert-butyl alcohol, the tetradecane
Base dimethyl tertiary amine, hexadecylic acid, diisobutyl phthalate, palmitamide, oleamide, two 2- ethylhexyl of phthalic acid
Ester.
Particular embodiments described above has carried out further in detail the purpose of the present invention, technical scheme and beneficial effects
Describe in detail bright, it should be understood that the above is only a specific embodiment of the present invention, is not intended to restrict the invention, it is all
Within the spirit and principles in the present invention, any modification, equivalent substitution, improvement and etc. done should be included in protection of the invention
Within the scope of.
Claims (7)
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| CN109775862A (en) * | 2019-01-30 | 2019-05-21 | 中国环境科学研究院 | A kind of permeable reaction wall and groundwater pollution in-situ bioremediation method |
| CN110257298A (en) * | 2019-07-04 | 2019-09-20 | 临沂大学 | A kind of microorganism mixed bacterial promoting photosynthesis of plant |
| CN112919625A (en) * | 2019-12-06 | 2021-06-08 | 南京理工大学 | Method for promoting degradation of ammonia nitrogen and organic matters in underground water by using starch modified hematite |
| CN115368906A (en) * | 2022-07-01 | 2022-11-22 | 华南理工大学 | A goethite-immobilized iron-sulfur reducing bacteria composite material and its preparation method and application |
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| CN115368906A (en) * | 2022-07-01 | 2022-11-22 | 华南理工大学 | A goethite-immobilized iron-sulfur reducing bacteria composite material and its preparation method and application |
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