CN116282574A - Efficient treatment method for landfill leachate - Google Patents
Efficient treatment method for landfill leachate Download PDFInfo
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- CN116282574A CN116282574A CN202310260518.8A CN202310260518A CN116282574A CN 116282574 A CN116282574 A CN 116282574A CN 202310260518 A CN202310260518 A CN 202310260518A CN 116282574 A CN116282574 A CN 116282574A
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- China
- Prior art keywords
- landfill leachate
- treatment
- coal tar
- tar pitch
- divinylbenzene
- Prior art date
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- 238000011282 treatment Methods 0.000 title claims abstract description 60
- 239000000149 chemical water pollutant Substances 0.000 title claims abstract description 51
- 238000000034 method Methods 0.000 title claims abstract description 33
- 239000003463 adsorbent Substances 0.000 claims abstract description 26
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 25
- 230000000813 microbial effect Effects 0.000 claims abstract description 23
- 238000011221 initial treatment Methods 0.000 claims abstract description 22
- 239000007788 liquid Substances 0.000 claims abstract description 16
- 241000589614 Pseudomonas stutzeri Species 0.000 claims abstract description 12
- 241000193755 Bacillus cereus Species 0.000 claims abstract description 11
- 241000190950 Rhodopseudomonas palustris Species 0.000 claims abstract description 11
- 241000191023 Rhodobacter capsulatus Species 0.000 claims abstract description 10
- 239000007791 liquid phase Substances 0.000 claims abstract description 8
- 238000000926 separation method Methods 0.000 claims abstract description 8
- 230000001954 sterilising effect Effects 0.000 claims abstract description 3
- MYRTYDVEIRVNKP-UHFFFAOYSA-N 1,2-Divinylbenzene Chemical compound C=CC1=CC=CC=C1C=C MYRTYDVEIRVNKP-UHFFFAOYSA-N 0.000 claims description 32
- 239000011294 coal tar pitch Substances 0.000 claims description 23
- 238000003756 stirring Methods 0.000 claims description 18
- 238000000197 pyrolysis Methods 0.000 claims description 14
- JIAARYAFYJHUJI-UHFFFAOYSA-L zinc dichloride Chemical compound [Cl-].[Cl-].[Zn+2] JIAARYAFYJHUJI-UHFFFAOYSA-L 0.000 claims description 10
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 claims description 9
- 238000005576 amination reaction Methods 0.000 claims description 8
- WBIQQQGBSDOWNP-UHFFFAOYSA-N 2-dodecylbenzenesulfonic acid Chemical compound CCCCCCCCCCCCC1=CC=CC=C1S(O)(=O)=O WBIQQQGBSDOWNP-UHFFFAOYSA-N 0.000 claims description 7
- 229940060296 dodecylbenzenesulfonic acid Drugs 0.000 claims description 7
- 238000005286 illumination Methods 0.000 claims description 7
- 239000011592 zinc chloride Substances 0.000 claims description 5
- 235000005074 zinc chloride Nutrition 0.000 claims description 5
- 241000252506 Characiformes Species 0.000 claims description 4
- WCUXLLCKKVVCTQ-UHFFFAOYSA-M Potassium chloride Chemical compound [Cl-].[K+] WCUXLLCKKVVCTQ-UHFFFAOYSA-M 0.000 claims description 4
- KWGKDLIKAYFUFQ-UHFFFAOYSA-M lithium chloride Chemical compound [Li+].[Cl-] KWGKDLIKAYFUFQ-UHFFFAOYSA-M 0.000 claims description 4
- 239000011780 sodium chloride Substances 0.000 claims description 4
- 235000002639 sodium chloride Nutrition 0.000 claims description 4
- 241000894006 Bacteria Species 0.000 claims description 3
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims description 3
- 239000003054 catalyst Substances 0.000 claims description 2
- 239000003431 cross linking reagent Substances 0.000 claims description 2
- 238000006460 hydrolysis reaction Methods 0.000 claims description 2
- 239000000178 monomer Substances 0.000 claims description 2
- 239000001103 potassium chloride Substances 0.000 claims description 2
- 235000011164 potassium chloride Nutrition 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 5
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract description 2
- 229910052760 oxygen Inorganic materials 0.000 abstract description 2
- 239000001301 oxygen Substances 0.000 abstract description 2
- 239000010865 sewage Substances 0.000 abstract description 2
- 239000000126 substance Substances 0.000 abstract description 2
- 230000000052 comparative effect Effects 0.000 description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 14
- 238000010438 heat treatment Methods 0.000 description 12
- 238000002156 mixing Methods 0.000 description 8
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 6
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 6
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 6
- 230000001580 bacterial effect Effects 0.000 description 6
- 238000001914 filtration Methods 0.000 description 6
- 238000005406 washing Methods 0.000 description 6
- ZKQDCIXGCQPQNV-UHFFFAOYSA-N Calcium hypochlorite Chemical compound [Ca+2].Cl[O-].Cl[O-] ZKQDCIXGCQPQNV-UHFFFAOYSA-N 0.000 description 5
- 239000007844 bleaching agent Substances 0.000 description 5
- 229920001817 Agar Polymers 0.000 description 4
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 4
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 4
- 239000008272 agar Substances 0.000 description 4
- 238000001035 drying Methods 0.000 description 4
- 239000001888 Peptone Substances 0.000 description 3
- 108010080698 Peptones Proteins 0.000 description 3
- 229940041514 candida albicans extract Drugs 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 238000001816 cooling Methods 0.000 description 3
- 239000012153 distilled water Substances 0.000 description 3
- 239000003344 environmental pollutant Substances 0.000 description 3
- 239000001963 growth medium Substances 0.000 description 3
- 229910052757 nitrogen Inorganic materials 0.000 description 3
- 235000015097 nutrients Nutrition 0.000 description 3
- 235000019319 peptone Nutrition 0.000 description 3
- 231100000719 pollutant Toxicity 0.000 description 3
- 238000002360 preparation method Methods 0.000 description 3
- 238000007873 sieving Methods 0.000 description 3
- 238000001179 sorption measurement Methods 0.000 description 3
- 239000012138 yeast extract Substances 0.000 description 3
- YBJHBAHKTGYVGT-ZKWXMUAHSA-N (+)-Biotin Chemical compound N1C(=O)N[C@@H]2[C@H](CCCCC(=O)O)SC[C@@H]21 YBJHBAHKTGYVGT-ZKWXMUAHSA-N 0.000 description 2
- ALYNCZNDIQEVRV-UHFFFAOYSA-N 4-aminobenzoic acid Chemical compound NC1=CC=C(C(O)=O)C=C1 ALYNCZNDIQEVRV-UHFFFAOYSA-N 0.000 description 2
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonia chloride Chemical compound [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 239000012880 LB liquid culture medium Substances 0.000 description 2
- TWRXJAOTZQYOKJ-UHFFFAOYSA-L Magnesium chloride Chemical compound [Mg+2].[Cl-].[Cl-] TWRXJAOTZQYOKJ-UHFFFAOYSA-L 0.000 description 2
- PVNIIMVLHYAWGP-UHFFFAOYSA-N Niacin Chemical compound OC(=O)C1=CC=CN=C1 PVNIIMVLHYAWGP-UHFFFAOYSA-N 0.000 description 2
- 239000006087 Silane Coupling Agent Substances 0.000 description 2
- 238000012258 culturing Methods 0.000 description 2
- 239000004615 ingredient Substances 0.000 description 2
- 238000009630 liquid culture Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000002609 medium Substances 0.000 description 2
- 238000010992 reflux Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- VTEIFHQUZWABDE-UHFFFAOYSA-N 2-(2,5-dimethoxy-4-methylphenyl)-2-methoxyethanamine Chemical compound COC(CN)C1=CC(OC)=C(C)C=C1OC VTEIFHQUZWABDE-UHFFFAOYSA-N 0.000 description 1
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 description 1
- WQZGKKKJIJFFOK-GASJEMHNSA-N Glucose Natural products OC[C@H]1OC(O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-GASJEMHNSA-N 0.000 description 1
- 229910021380 Manganese Chloride Inorganic materials 0.000 description 1
- GLFNIEUTAYBVOC-UHFFFAOYSA-L Manganese chloride Chemical compound Cl[Mn]Cl GLFNIEUTAYBVOC-UHFFFAOYSA-L 0.000 description 1
- 229910021586 Nickel(II) chloride Inorganic materials 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- VMHLLURERBWHNL-UHFFFAOYSA-M Sodium acetate Chemical compound [Na+].CC([O-])=O VMHLLURERBWHNL-UHFFFAOYSA-M 0.000 description 1
- 229960004050 aminobenzoic acid Drugs 0.000 description 1
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 description 1
- 235000019270 ammonium chloride Nutrition 0.000 description 1
- 239000003963 antioxidant agent Substances 0.000 description 1
- 230000003078 antioxidant effect Effects 0.000 description 1
- 239000010426 asphalt Substances 0.000 description 1
- 235000015278 beef Nutrition 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229960002685 biotin Drugs 0.000 description 1
- 235000020958 biotin Nutrition 0.000 description 1
- 239000011616 biotin Substances 0.000 description 1
- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical compound OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 description 1
- 239000004327 boric acid Substances 0.000 description 1
- FAPWYRCQGJNNSJ-UBKPKTQASA-L calcium D-pantothenic acid Chemical compound [Ca+2].OCC(C)(C)[C@@H](O)C(=O)NCCC([O-])=O.OCC(C)(C)[C@@H](O)C(=O)NCCC([O-])=O FAPWYRCQGJNNSJ-UBKPKTQASA-L 0.000 description 1
- 239000001110 calcium chloride Substances 0.000 description 1
- 229910001628 calcium chloride Inorganic materials 0.000 description 1
- 229960002079 calcium pantothenate Drugs 0.000 description 1
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- GVPFVAHMJGGAJG-UHFFFAOYSA-L cobalt dichloride Chemical compound [Cl-].[Cl-].[Co+2] GVPFVAHMJGGAJG-UHFFFAOYSA-L 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- ORTQZVOHEJQUHG-UHFFFAOYSA-L copper(II) chloride Chemical compound Cl[Cu]Cl ORTQZVOHEJQUHG-UHFFFAOYSA-L 0.000 description 1
- BVTBRVFYZUCAKH-UHFFFAOYSA-L disodium selenite Chemical compound [Na+].[Na+].[O-][Se]([O-])=O BVTBRVFYZUCAKH-UHFFFAOYSA-L 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 229960002089 ferrous chloride Drugs 0.000 description 1
- 239000008103 glucose Substances 0.000 description 1
- 235000013882 gravy Nutrition 0.000 description 1
- NMCUIPGRVMDVDB-UHFFFAOYSA-L iron dichloride Chemical compound Cl[Fe]Cl NMCUIPGRVMDVDB-UHFFFAOYSA-L 0.000 description 1
- 150000002576 ketones Chemical class 0.000 description 1
- 229910001629 magnesium chloride Inorganic materials 0.000 description 1
- 239000011565 manganese chloride Substances 0.000 description 1
- 235000002867 manganese chloride Nutrition 0.000 description 1
- 229940099607 manganese chloride Drugs 0.000 description 1
- 239000013028 medium composition Substances 0.000 description 1
- 238000013048 microbiological method Methods 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910000402 monopotassium phosphate Inorganic materials 0.000 description 1
- 235000019796 monopotassium phosphate Nutrition 0.000 description 1
- QMMRZOWCJAIUJA-UHFFFAOYSA-L nickel dichloride Chemical compound Cl[Ni]Cl QMMRZOWCJAIUJA-UHFFFAOYSA-L 0.000 description 1
- 229960003512 nicotinic acid Drugs 0.000 description 1
- 235000001968 nicotinic acid Nutrition 0.000 description 1
- 239000011664 nicotinic acid Substances 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- GNSKLFRGEWLPPA-UHFFFAOYSA-M potassium dihydrogen phosphate Chemical compound [K+].OP(O)([O-])=O GNSKLFRGEWLPPA-UHFFFAOYSA-M 0.000 description 1
- LWIHDJKSTIGBAC-UHFFFAOYSA-K potassium phosphate Substances [K+].[K+].[K+].[O-]P([O-])([O-])=O LWIHDJKSTIGBAC-UHFFFAOYSA-K 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000035755 proliferation Effects 0.000 description 1
- ZUFQODAHGAHPFQ-UHFFFAOYSA-N pyridoxine hydrochloride Chemical compound Cl.CC1=NC=C(CO)C(CO)=C1O ZUFQODAHGAHPFQ-UHFFFAOYSA-N 0.000 description 1
- 229960004172 pyridoxine hydrochloride Drugs 0.000 description 1
- 235000019171 pyridoxine hydrochloride Nutrition 0.000 description 1
- 239000011764 pyridoxine hydrochloride Substances 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- 239000001632 sodium acetate Substances 0.000 description 1
- 235000017281 sodium acetate Nutrition 0.000 description 1
- 239000011684 sodium molybdate Substances 0.000 description 1
- 235000015393 sodium molybdate Nutrition 0.000 description 1
- TVXXNOYZHKPKGW-UHFFFAOYSA-N sodium molybdate (anhydrous) Chemical compound [Na+].[Na+].[O-][Mo]([O-])(=O)=O TVXXNOYZHKPKGW-UHFFFAOYSA-N 0.000 description 1
- 239000011781 sodium selenite Substances 0.000 description 1
- 235000015921 sodium selenite Nutrition 0.000 description 1
- 229960001471 sodium selenite Drugs 0.000 description 1
- 229940074404 sodium succinate Drugs 0.000 description 1
- ZDQYSKICYIVCPN-UHFFFAOYSA-L sodium succinate (anhydrous) Chemical compound [Na+].[Na+].[O-]C(=O)CCC([O-])=O ZDQYSKICYIVCPN-UHFFFAOYSA-L 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000005979 thermal decomposition reaction Methods 0.000 description 1
- 229960000344 thiamine hydrochloride Drugs 0.000 description 1
- 235000019190 thiamine hydrochloride Nutrition 0.000 description 1
- 239000011747 thiamine hydrochloride Substances 0.000 description 1
- DPJRMOMPQZCRJU-UHFFFAOYSA-M thiamine hydrochloride Chemical compound Cl.[Cl-].CC1=C(CCO)SC=[N+]1CC1=CN=C(C)N=C1N DPJRMOMPQZCRJU-UHFFFAOYSA-M 0.000 description 1
- 239000012137 tryptone Substances 0.000 description 1
Images
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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
- B01J20/20—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising free carbon; comprising carbon obtained by carbonising processes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/22—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising organic material
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/288—Treatment of water, waste water, or sewage by sorption using composite sorbents, e.g. coated, impregnated, multi-layered
-
- 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
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Organic Chemistry (AREA)
- Water Supply & Treatment (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Hydrology & Water Resources (AREA)
- Microbiology (AREA)
- Analytical Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Biodiversity & Conservation Biology (AREA)
- Inorganic Chemistry (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention relates to the technical field of sewage treatment, in particular to a high-efficiency treatment method of landfill leachate, which comprises the steps of adding microbial agent into the landfill leachate to treat the landfill leachate once, wherein the microbial agent consists of bacillus cereus, rhodopseudomonas palustris, pseudomonas stutzeri and rhodobacter capsulatus, adding adsorbent into the landfill leachate after the primary treatment to carry out secondary treatment, carrying out solid-liquid separation on the landfill leachate after the secondary treatment, collecting liquid phase and sterilizing, and the method provided by the invention has good treatment effect on the landfill leachate and COD (chemical oxygen demand) cr 、BOD 5 、NH 4 + The indexes of N, TP, TN, chromaticity and the like all meet the emission standard of pollution control Standard of household refuse landfill (GB 16889-2008).
Description
Technical Field
The invention relates to the technical field of sewage treatment, in particular to a high-efficiency treatment method of landfill leachate.
Background
The leachate generated in the landfill process has the characteristics of high pollutant concentration, complex components, unbalanced nutrient elements, large water quality fluctuation and the like, and if the leachate is improperly treated, serious pollution can be caused to underground water, soil and the like.
The adsorption method is a method for enriching pollutants in water to the surface of the material by applying the physical and chemical properties of the surface of the material, and is a common advanced treatment method for landfill leachate, but the single use of the adsorption method has an unsatisfactory treatment effect on the landfill leachate with high concentration.
Disclosure of Invention
The invention aims to: aiming at the technical problems, the invention provides a high-efficiency treatment method of landfill leachate.
The technical scheme adopted is as follows:
a high-efficiency treatment method for landfill leachate comprises the following steps: adding a microbial agent into landfill leachate to perform primary treatment, wherein the microbial agent consists of bacillus cereus, rhodopseudomonas palustris, pseudomonas stutzeri and rhodobacter capsulatus, and the microbial agent comprises the following components in percentage by weight:
bacillus cereus with viable count not less than 1.0X10 10 CFU/mL, strain number ATCC11778;
rhodopseudomonas palustris with viable count not less than 1.0X10 9 CFU/mL, strain number ATCC33872;
pseudomonas stutzeri, living bacteria number is not less than 1.0X10 9 CFU/mL, strain number ATCC 17591;
rhodobacter capsulatus with viable count not lower than 1.0X10 9 CFU/mL, strain number ATCC 11166;
adding adsorbent into the refuse leachate after the primary treatment for secondary treatment, carrying out solid-liquid separation on the refuse leachate after the secondary treatment, collecting liquid phase, and sterilizing.
Further, the primary treatment is carried out under the stirring state of 120-250rpm, the illumination intensity of 800-1200XL and the temperature condition of 20-40 ℃.
Further, the adsorbent is a pyrolysis product of divinylbenzene-modified coal tar pitch.
Further, the divinylbenzene modified coal tar pitch is prepared by modifying coal tar pitch with the catalyst of dodecylbenzene sulfonic acid by taking coal tar pitch as a monomer and divinylbenzene as a cross-linking agent.
Further, the dosage of the divinylbenzene and the dodecylbenzene sulfonic acid is respectively 10-20% and 2-6% of the mass of the coal tar pitch.
Further, the pyrolysis temperature of the divinylbenzene-modified coal tar pitch is 500-550 ℃.
Further, the pyrolysis product of the divinylbenzene-modified coal tar pitch is also subjected to high Wen Kuokong treatment.
Further, the high-temperature reaming treatment temperature is 900-950 ℃, and the used reaming agent is any one or a combination of more of lithium chloride, sodium chloride, potassium chloride and zinc chloride.
Further, the pyrolysis product of the divinylbenzene-modified coal tar pitch is also subjected to amination treatment.
Further, the amination treatment method comprises the following steps:
firstly, introducing active hydroxyl on the surface of a pyrolysis product of the divinylbenzene modified coal tar pitch by using piranha solution, and then, amination on the surface of the pyrolysis product of the divinylbenzene modified coal tar pitch by using KH-792 through hydrolysis reaction.
The invention has the beneficial effects that:
the invention provides a high-efficiency treatment method of landfill leachate, which comprises the following steps ofThe invention forms a coordinated ecological system by the synergistic effect and proliferation relation among high-efficiency compound microorganism flora consisting of bacillus cereus, rhodopseudomonas palustris, pseudomonas stutzeri and rhodobacter capsulatus, rapidly decomposes organic matters and metabolizes antioxidant matters, can eliminate pollutants such as COD, BOD, ammonia nitrogen, phosphorus and the like, has a certain biological decolorizing effect, and the adsorbent is a pyrolysis product of divinylbenzene modified coal asphalt, is subjected to high Wen Kuokong and amination treatment, has abundant internal pores, has the surface rich in oxygen-containing groups (such as hydroxyl, carboxyl, ketone and the like) and amino and other active groups, has good treatment effect on landfill leachate by combining a microbiological method and an adsorption method, and has COD cr 、BOD 5 、NH 4 + The indexes of N, TP, TN, chromaticity and the like all meet the emission standard of pollution control Standard of household refuse landfill (GB 16889-2008).
Drawings
FIG. 1 is a comparison of the appearance of the landfill leachate before and after treatment in example 1 of the present invention.
Detailed Description
The specific conditions are not noted in the examples and are carried out according to conventional conditions or conditions recommended by the manufacturer. The reagents or apparatus used were conventional products commercially available without the manufacturer's attention. The technology not mentioned in the present invention refers to the prior art, and unless otherwise indicated, the following examples and comparative examples are parallel tests, employing the same processing steps and parameters.
Example 1:
a high-efficiency treatment method for landfill leachate comprises the following steps:
culturing bacillus cereus ATCC11778 in a nutrient gravy agar medium to obtain bacillus cereus bacterial liquid;
the nutrient broth agar medium comprises peptone 5.0g, beef extract 3.0g, naCl 5.0g, agar 15.0g, and MnSO 4 ·H 2 O5 mg, distilled water 1.0L, and pH was adjusted to 7.0-7.2 with 1M NaOH.
Culturing rhodopseudomonas palustris ATCC33872 in YPD liquid culture medium to obtain rhodopseudomonas palustris liquid;
YPD liquid culture medium comprises yeast extract 10g, peptone 20g, glucose 20g, and distilled water 1.0L.
Pseudomonas stutzeri ATCC 17591 is cultured in an LB liquid culture medium to obtain Pseudomonas stutzeri liquid;
LB liquid culture medium comprises adding tryptone 10g, yeast extract 5g, and NaCl 10g into 950ml distilled water, adjusting pH to 7.0 with 1M NaOH, and fixing volume to 1L;
rhodobacter capsulatus ATCC 11166 is cultivated in a full-ingredient culture medium to obtain pseudomonas stutzeri bacterial liquid;
full-ingredient medium composition: 1.0g of ammonium chloride, 0.5g of monopotassium phosphate, 0.5g of magnesium chloride, 0.1g of calcium chloride, 1.0g of sodium chloride, 2.0g of sodium acetate, 1.0g of sodium succinate, 0.5g of yeast extract powder, 0.5g of peptone, 1.8mg of ferrous chloride, 0.25mg of cobalt chloride, 0.01mg of nickel chloride, 0.01mg of copper chloride, 0.07mg of manganese chloride, 0.1mg of zinc chloride, 0.5mg of boric acid, 0.01mg of sodium selenite, 0.01g of sodium molybdate, 0.01mg of biotin, 0.035mg of nicotinic acid, 0.01mg of calcium pantothenate, 0.03mg of thiamine hydrochloride and VB 12 0.005mg, pyridoxine hydrochloride 0.01mg, p-aminobenzoic acid 0.02mg, agar 13.0g, water to 1L.
Mixing bacillus cereus bacterial liquid, rhodopseudomonas palustris bacterial liquid, pseudomonas stutzeri bacterial liquid and rhodobacter capsulatus bacterial liquid to obtain microbial agent, wherein the number of viable bacteria of bacillus cereus is 1.5x10 10 CFU/mL；
Rhodopseudomonas palustris with viable count of 2.5X10 9 CFU/mL；
Pseudomonas stutzeri with viable count of 2.5X10 9 CFU/mL；
Rhodobacter capsulatus with viable count of 2.5X10 9 CFU/mL；
Adding a microbial agent into the landfill leachate to perform primary treatment, wherein the addition amount of the microbial agent is 10mL/L, the primary treatment is performed under the stirring state of 200rpm, the illumination intensity of 1000XL and the temperature condition of 30 ℃, and the primary treatment time is 4d;
adding an adsorbent into the landfill leachate after the primary treatment for secondary treatment, wherein the adding amount of the adsorbent is 50g/L, the secondary treatment time is 24 hours, the stirring speed is 450rpm during the secondary treatment, the temperature is 25 ℃, the solid-liquid separation is carried out on the landfill leachate after the secondary treatment, the liquid phase is collected, and the bleaching powder is sterilized.
The preparation method of the adsorbent comprises the following steps:
mixing 500g medium-temperature coal tar pitch with 80g divinylbenzene and 25g dodecylbenzene sulfonic acid uniformly, heating to 150 ℃ under the protection of nitrogen, preserving heat for reaction for 5 hours, naturally cooling the obtained product to room temperature, heating to 550 ℃ for thermal decomposition for 2 hours, crushing the obtained product, sieving with a 80-mesh sieve, mixing with 25g zinc chloride and 2.5L of 0.1M dilute hydrochloric acid solution, heating to reflux, preserving heat for 1 hour, filtering, washing the obtained solid, drying, heating to 930 ℃ for high-temperature reaming treatment for 2 hours, immersing in 2.5L piranha solution at 40 ℃ for 2 hours, filtering, washing with water, mixing with 4L toluene, 60mL of water and 200mL of ethanol, adding 450mL of silane coupling agent KH-900 under stirring, stirring for reaction for 2 hours at 40 ℃, dripping into 150mL of 0.1M dilute hydrochloric acid solution, heating to 50 ℃ for stirring for reaction for 6 hours after dripping, filtering, washing, and drying.
Example 2:
a high-efficiency treatment method for landfill leachate comprises the following steps:
the microbial agent prepared in the example 1 is added into landfill leachate to be treated once, the addition amount of the microbial agent is 10mL/L, the primary treatment is carried out under the condition of stirring at 250rpm, the illumination intensity of 1200XL and the temperature of 40 ℃, the primary treatment time is 4d, the adsorbent is added into the landfill leachate after the primary treatment to be treated again, the addition amount of the adsorbent is 50g/L, the secondary treatment time is 24h, the stirring speed is 450rpm, the temperature is 25 ℃, the solid-liquid separation is carried out on the landfill leachate after the secondary treatment, and the liquid phase is collected and the bleaching powder is sterilized.
The adsorbent was prepared in the same manner as in example 1.
Example 3:
a high-efficiency treatment method for landfill leachate comprises the following steps:
the microbial agent prepared in the example 1 is added into landfill leachate to be treated once, the addition amount of the microbial agent is 10mL/L, the primary treatment is carried out under the condition of 120rpm stirring, 800XL illumination intensity and 20 ℃ temperature, the primary treatment time is 4d, the adsorbent is added into the landfill leachate after the primary treatment to be treated again, the addition amount of the adsorbent is 50g/L, the secondary treatment time is 24h, the stirring speed is 450rpm during the secondary treatment, the temperature is 25 ℃, the solid-liquid separation is carried out on the landfill leachate after the secondary treatment, and the liquid phase is collected and the bleaching powder is sterilized.
The adsorbent was prepared in the same manner as in example 1.
Example 4:
a high-efficiency treatment method for landfill leachate comprises the following steps:
the microbial agent prepared in the example 1 is added into landfill leachate to be treated once, the addition amount of the microbial agent is 10mL/L, the primary treatment is carried out under the condition of stirring at 250rpm, the illumination intensity of 800XL and the temperature of 40 ℃, the primary treatment time is 4d, the adsorbent is added into the landfill leachate after the primary treatment to be treated again, the addition amount of the adsorbent is 50g/L, the secondary treatment time is 24h, the stirring speed is 450rpm, the temperature is 25 ℃, the solid-liquid separation is carried out on the landfill leachate after the secondary treatment, and the liquid phase is collected and the bleaching powder is sterilized.
The adsorbent was prepared in the same manner as in example 1.
Example 5:
a high-efficiency treatment method for landfill leachate comprises the following steps:
the microbial agent prepared in the example 1 is added into landfill leachate to be treated once, the addition amount of the microbial agent is 10mL/L, the primary treatment is carried out under the condition of 120rpm stirring, 1200XL illumination intensity and 20 ℃ temperature, the primary treatment time is 4d, the adsorbent is added into the landfill leachate after the primary treatment to be treated again, the addition amount of the adsorbent is 50g/L, the secondary treatment time is 24h, the stirring speed is 450rpm during the secondary treatment, the temperature is 25 ℃, the solid-liquid separation is carried out on the landfill leachate after the secondary treatment, and the liquid phase is collected and the bleaching powder is sterilized.
The adsorbent was prepared in the same manner as in example 1.
Comparative example 1:
substantially the same as in example 1, except that the microbial agent does not contain the Bacillus cereus culture solution.
Comparative example 2:
substantially the same as in example 1, except that the microbial agent contained no rhodopseudomonas palustris culture solution.
Comparative example 3:
substantially the same as in example 1, except that the microbial agent does not contain a Pseudomonas stutzeri culture solution.
Comparative example 4:
substantially the same as in example 1, except that the microbial agent does not contain rhodobacter capsulatus culture solution.
Comparative example 5:
substantially the same as in example 1, except that the adsorbent was replaced with commercially available activated carbon.
Comparative example 6:
substantially the same as in example 1, except that the adsorbent was not subjected to the amination treatment.
The preparation method of the adsorbent comprises the following steps:
mixing 500g medium-temperature coal tar pitch, 80g divinylbenzene and 25g dodecylbenzene sulfonic acid uniformly, heating to 150 ℃ under the protection of nitrogen, preserving heat for 5 hours, naturally cooling the obtained product to room temperature, heating to 550 ℃ for preserving heat and pyrolyzing for 2 hours, crushing the obtained product, sieving the crushed product with a 80-mesh sieve, mixing the crushed product with 25g zinc chloride and 2.5L of 0.1M dilute hydrochloric acid solution, heating to reflux and preserving heat for 1 hour, filtering, washing the obtained solid, drying, and heating to 930 ℃ for high-temperature reaming treatment for 2 hours.
Comparative example 7:
substantially the same as in example 1, except that the adsorbent was not subjected to high Wen Kuokong treatment.
The preparation method of the adsorbent comprises the following steps:
mixing 500g medium-temperature coal tar pitch, 80g divinylbenzene and 25g dodecylbenzene sulfonic acid uniformly, heating to 150 ℃ under the protection of nitrogen, preserving heat for 5 hours, naturally cooling the obtained product to room temperature, heating to 550 ℃ and preserving heat for pyrolysis 2 hours, crushing the obtained product, sieving the crushed product with a 80-mesh sieve, placing the crushed product in 2.5L piranha solution for soaking for 2 hours at 40 ℃, filtering, washing the crushed product with water, mixing the crushed product with 4L toluene, 60mL water and 200mL ethanol, adding 450mL silane coupling agent KH-900 under stirring, stirring for 2 hours at 40 ℃, dripping 150mL of 0.1M diluted hydrochloric acid solution, heating to 50 ℃ after dripping, stirring for 6 hours, filtering, washing with water, and drying.
Performance test:
the landfill leachate is taken from a domestic garbage landfill in Yongxing county, and the water quality is shown in table 1;
the water quality after being treated by the methods in examples 1 to 5 and comparative examples 1 to 7 is shown in Table 1;
table 1:
| COD cr | BOD 5 | NH 4 + -N | TP | TN | chromaticity of | |
| Before treatment | 7560 | 4642 | 441 | 82 | 793 | 405 |
| Example 1 | 76 | 12 | 8 | 1.4 | 17 | 5.5 |
| Example 2 | 81 | 18 | 10 | 1.9 | 20 | 6.3 |
| Example 3 | 96 | 26 | 15 | 2.6 | 29 | 8.0 |
| Example 4 | 85 | 15 | 13 | 1.3 | 23 | 7.1 |
| Example 5 | 70 | 22 | 16 | 2.0 | 25 | 6.2 |
| Comparative example 1 | 122 | 50 | 32 | 10.1 | 80 | 12.8 |
| Comparative example 2 | 110 | 47 | 25 | 5.6 | 66 | 16.0 |
| Comparative example 3 | 155 | 67 | 51 | 18.8 | 103 | 15.6 |
| Comparative example 4 | 94 | 34 | 23 | 6.3 | 58 | 13.5 |
| Comparative example 5 | 103 | 37 | 25 | 6.9 | 64 | 59.2 |
| Comparative example 6 | 90 | 27 | 27 | 5.5 | 52 | 34.6 |
| Comparative example 7 | 99 | 35 | 25 | 5.9 | 55 | 32.2 |
Note that: the units except the chromaticity are mg/L, and the chromaticity unit is multiplied.
As shown in the table 1, the method provided by the invention has good treatment effect on landfill leachate and COD cr 、BOD 5 、NH 4 + The indexes of N, TP, TN, chromaticity and the like all meet the emission standard of pollution control Standard of household refuse landfill (GB 16889-2008).
The above embodiments are only for illustrating the technical solution of the present invention, and are not limiting; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims (10)
1. The efficient treatment method of the landfill leachate is characterized by adding a microbial agent into the landfill leachate to treat the landfill leachate once, wherein the microbial agent consists of bacillus cereus, rhodopseudomonas palustris, pseudomonas stutzeri and rhodobacter capsulatus, and the microbial agent comprises the following components:
bacillus cereus with viable count not less than 1.0X10 10 CFU/mL, strain number ATCC11778;
rhodopseudomonas palustris with viable count not less than 1.0X10 9 CFU/mL, strain number ATCC33872;
pseudomonas stutzeri, living bacteria number is not less than 1.0X10 9 CFU/mL, strain number ATCC 17591;
rhodobacter capsulatus with viable count not lower than 1.0X10 9 CFU/mL, strain number ATCC 11166;
adding adsorbent into the refuse leachate after the primary treatment for secondary treatment, carrying out solid-liquid separation on the refuse leachate after the secondary treatment, collecting liquid phase, and sterilizing.
2. The method for efficiently treating landfill leachate according to claim 1, wherein the primary treatment is performed under the conditions of stirring at 120-250rpm, illumination intensity of 800-1200XL and temperature of 20-40 ℃.
3. The efficient treatment method of landfill leachate according to claim 1, wherein the adsorbent is a pyrolysis product of divinylbenzene modified coal tar pitch.
4. The method for efficiently treating landfill leachate according to claim 3, wherein the divinylbenzene-modified coal tar pitch is obtained by modifying coal tar pitch with a catalyst of dodecylbenzene sulfonic acid by using coal tar pitch as a monomer and divinylbenzene as a cross-linking agent.
5. The efficient treatment method of landfill leachate according to claim 4, wherein the dosage of divinylbenzene and dodecylbenzene sulfonic acid is 10-20% and 2-6% of the mass of the coal tar pitch respectively.
6. The method for efficiently treating landfill leachate according to claim 3, wherein the pyrolysis temperature of the divinylbenzene-modified coal tar pitch is 500-550 ℃.
7. A method for efficient treatment of landfill leachate according to claim 3, wherein the pyrolysis product of divinylbenzene modified coal tar pitch is further treated with high Wen Kuokong.
8. The efficient treatment method of landfill leachate according to claim 7, wherein the high-temperature reaming treatment temperature is 900-950 ℃, and the reaming agent is any one or a combination of more of lithium chloride, sodium chloride, potassium chloride and zinc chloride.
9. A method for efficient treatment of landfill leachate according to claim 3, wherein the pyrolysis product of divinylbenzene modified coal tar pitch is further subjected to an amination treatment.
10. The efficient treatment method of landfill leachate according to claim 9, wherein the amination treatment method comprises the following steps:
firstly, introducing active hydroxyl on the surface of a pyrolysis product of the divinylbenzene modified coal tar pitch by using piranha solution, and then, amination on the surface of the pyrolysis product of the divinylbenzene modified coal tar pitch by using KH-792 through hydrolysis reaction.
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