CN110591918A - 净化二级尾水或污泥上清液耦合生产藻源糖的方法 - Google Patents
净化二级尾水或污泥上清液耦合生产藻源糖的方法 Download PDFInfo
- Publication number
- CN110591918A CN110591918A CN201910826798.8A CN201910826798A CN110591918A CN 110591918 A CN110591918 A CN 110591918A CN 201910826798 A CN201910826798 A CN 201910826798A CN 110591918 A CN110591918 A CN 110591918A
- Authority
- CN
- China
- Prior art keywords
- algae
- reactor
- microalgae
- tail water
- concentration
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 241000195493 Cryptophyta Species 0.000 title claims abstract description 71
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 42
- 235000000346 sugar Nutrition 0.000 title claims abstract description 35
- 239000010802 sludge Substances 0.000 title claims abstract description 20
- 239000006228 supernatant Substances 0.000 title claims abstract description 20
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 15
- 230000008878 coupling Effects 0.000 title claims abstract description 9
- 238000010168 coupling process Methods 0.000 title claims abstract description 9
- 238000005859 coupling reaction Methods 0.000 title claims abstract description 9
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 19
- 229910052698 phosphorus Inorganic materials 0.000 claims abstract description 14
- 239000007788 liquid Substances 0.000 claims abstract description 12
- 235000015097 nutrients Nutrition 0.000 claims abstract description 12
- 239000002028 Biomass Substances 0.000 claims abstract description 10
- 238000001914 filtration Methods 0.000 claims abstract description 10
- 239000000843 powder Substances 0.000 claims abstract description 8
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 7
- 230000029553 photosynthesis Effects 0.000 claims abstract description 7
- 238000010672 photosynthesis Methods 0.000 claims abstract description 7
- 239000011573 trace mineral Substances 0.000 claims abstract description 7
- 235000013619 trace mineral Nutrition 0.000 claims abstract description 7
- 238000001035 drying Methods 0.000 claims abstract description 5
- 230000004060 metabolic process Effects 0.000 claims abstract description 4
- 230000001502 supplementing effect Effects 0.000 claims abstract description 3
- 238000000034 method Methods 0.000 claims description 18
- 239000010865 sewage Substances 0.000 claims description 11
- ATNHDLDRLWWWCB-AENOIHSZSA-M chlorophyll a Chemical compound C1([C@@H](C(=O)OC)C(=O)C2=C3C)=C2N2C3=CC(C(CC)=C3C)=[N+]4C3=CC3=C(C=C)C(C)=C5N3[Mg-2]42[N+]2=C1[C@@H](CCC(=O)OC\C=C(/C)CCC[C@H](C)CCC[C@H](C)CCCC(C)C)[C@H](C)C2=C5 ATNHDLDRLWWWCB-AENOIHSZSA-M 0.000 claims description 10
- 229930002875 chlorophyll Natural products 0.000 claims description 8
- 235000019804 chlorophyll Nutrition 0.000 claims description 8
- 230000014759 maintenance of location Effects 0.000 claims description 6
- 230000035755 proliferation Effects 0.000 claims description 6
- 238000010992 reflux Methods 0.000 claims description 6
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical compound [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 claims description 4
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 claims description 4
- 238000003306 harvesting Methods 0.000 claims description 4
- 238000005286 illumination Methods 0.000 claims description 4
- 230000002503 metabolic effect Effects 0.000 claims description 4
- FGIUAXJPYTZDNR-UHFFFAOYSA-N potassium nitrate Chemical compound [K+].[O-][N+]([O-])=O FGIUAXJPYTZDNR-UHFFFAOYSA-N 0.000 claims description 4
- 230000001105 regulatory effect Effects 0.000 claims description 4
- YGSDEFSMJLZEOE-UHFFFAOYSA-N salicylic acid Chemical group OC(=O)C1=CC=CC=C1O YGSDEFSMJLZEOE-UHFFFAOYSA-N 0.000 claims description 4
- VWDWKYIASSYTQR-UHFFFAOYSA-N sodium nitrate Chemical compound [Na+].[O-][N+]([O-])=O VWDWKYIASSYTQR-UHFFFAOYSA-N 0.000 claims description 4
- JIAARYAFYJHUJI-UHFFFAOYSA-L zinc dichloride Chemical compound [Cl-].[Cl-].[Zn+2] JIAARYAFYJHUJI-UHFFFAOYSA-L 0.000 claims description 4
- 241000195649 Chlorella <Chlorellales> Species 0.000 claims description 3
- 241000195663 Scenedesmus Species 0.000 claims description 3
- 239000001763 2-hydroxyethyl(trimethyl)azanium Substances 0.000 claims description 2
- 240000002900 Arthrospira platensis Species 0.000 claims description 2
- 235000016425 Arthrospira platensis Nutrition 0.000 claims description 2
- 235000019743 Choline chloride Nutrition 0.000 claims description 2
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 claims description 2
- 239000005977 Ethylene Substances 0.000 claims description 2
- 229910021578 Iron(III) chloride Inorganic materials 0.000 claims description 2
- 229910021380 Manganese Chloride Inorganic materials 0.000 claims description 2
- GLFNIEUTAYBVOC-UHFFFAOYSA-L Manganese chloride Chemical compound Cl[Mn]Cl GLFNIEUTAYBVOC-UHFFFAOYSA-L 0.000 claims description 2
- 241000192701 Microcystis Species 0.000 claims description 2
- 238000005273 aeration Methods 0.000 claims description 2
- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical compound OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 claims description 2
- 239000004327 boric acid Substances 0.000 claims description 2
- 229960002645 boric acid Drugs 0.000 claims description 2
- SGMZJAMFUVOLNK-UHFFFAOYSA-M choline chloride Chemical group [Cl-].C[N+](C)(C)CCO SGMZJAMFUVOLNK-UHFFFAOYSA-M 0.000 claims description 2
- 229960003178 choline chloride Drugs 0.000 claims description 2
- UFMZWBIQTDUYBN-UHFFFAOYSA-N cobalt dinitrate Chemical compound [Co+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O UFMZWBIQTDUYBN-UHFFFAOYSA-N 0.000 claims description 2
- 229910001981 cobalt nitrate Inorganic materials 0.000 claims description 2
- 229910000365 copper sulfate Inorganic materials 0.000 claims description 2
- 229960000355 copper sulfate Drugs 0.000 claims description 2
- ARUVKPQLZAKDPS-UHFFFAOYSA-L copper(II) sulfate Chemical compound [Cu+2].[O-][S+2]([O-])([O-])[O-] ARUVKPQLZAKDPS-UHFFFAOYSA-L 0.000 claims description 2
- ZPWVASYFFYYZEW-UHFFFAOYSA-L dipotassium hydrogen phosphate Chemical compound [K+].[K+].OP([O-])([O-])=O ZPWVASYFFYYZEW-UHFFFAOYSA-L 0.000 claims description 2
- 238000007599 discharging Methods 0.000 claims description 2
- RBTARNINKXHZNM-UHFFFAOYSA-K iron trichloride Chemical compound Cl[Fe](Cl)Cl RBTARNINKXHZNM-UHFFFAOYSA-K 0.000 claims description 2
- 235000002867 manganese chloride Nutrition 0.000 claims description 2
- 239000011565 manganese chloride Substances 0.000 claims description 2
- 229940099607 manganese chloride Drugs 0.000 claims description 2
- FJKROLUGYXJWQN-UHFFFAOYSA-N papa-hydroxy-benzoic acid Natural products OC(=O)C1=CC=C(O)C=C1 FJKROLUGYXJWQN-UHFFFAOYSA-N 0.000 claims description 2
- 239000004323 potassium nitrate Substances 0.000 claims description 2
- 235000010333 potassium nitrate Nutrition 0.000 claims description 2
- 229960004889 salicylic acid Drugs 0.000 claims description 2
- 235000017557 sodium bicarbonate Nutrition 0.000 claims description 2
- 229910000030 sodium bicarbonate Inorganic materials 0.000 claims description 2
- 239000011780 sodium chloride Substances 0.000 claims description 2
- 235000015393 sodium molybdate Nutrition 0.000 claims description 2
- 239000011684 sodium molybdate Substances 0.000 claims description 2
- TVXXNOYZHKPKGW-UHFFFAOYSA-N sodium molybdate (anhydrous) Chemical compound [Na+].[Na+].[O-][Mo]([O-])(=O)=O TVXXNOYZHKPKGW-UHFFFAOYSA-N 0.000 claims description 2
- 239000004317 sodium nitrate Substances 0.000 claims description 2
- 235000010344 sodium nitrate Nutrition 0.000 claims description 2
- 229940082787 spirulina Drugs 0.000 claims description 2
- 235000005074 zinc chloride Nutrition 0.000 claims description 2
- 239000011592 zinc chloride Substances 0.000 claims description 2
- NWONKYPBYAMBJT-UHFFFAOYSA-L zinc sulfate Chemical compound [Zn+2].[O-]S([O-])(=O)=O NWONKYPBYAMBJT-UHFFFAOYSA-L 0.000 claims description 2
- 229910000368 zinc sulfate Inorganic materials 0.000 claims description 2
- 229960001763 zinc sulfate Drugs 0.000 claims description 2
- SHZGCJCMOBCMKK-UHFFFAOYSA-N D-mannomethylose Natural products CC1OC(O)C(O)C(O)C1O SHZGCJCMOBCMKK-UHFFFAOYSA-N 0.000 claims 1
- PNNNRSAQSRJVSB-SLPGGIOYSA-N Fucose Natural products C[C@H](O)[C@@H](O)[C@H](O)[C@H](O)C=O PNNNRSAQSRJVSB-SLPGGIOYSA-N 0.000 claims 1
- SHZGCJCMOBCMKK-DHVFOXMCSA-N L-fucopyranose Chemical compound C[C@@H]1OC(O)[C@@H](O)[C@H](O)[C@@H]1O SHZGCJCMOBCMKK-DHVFOXMCSA-N 0.000 claims 1
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 abstract description 34
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 abstract description 12
- 239000011574 phosphorus Substances 0.000 abstract description 12
- 150000001720 carbohydrates Chemical class 0.000 abstract description 5
- 230000006872 improvement Effects 0.000 abstract description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 10
- 230000007613 environmental effect Effects 0.000 description 6
- 150000003839 salts Chemical class 0.000 description 6
- 239000000126 substance Substances 0.000 description 5
- 229910019142 PO4 Inorganic materials 0.000 description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 4
- 230000008901 benefit Effects 0.000 description 4
- 150000002632 lipids Chemical class 0.000 description 4
- 229910052760 oxygen Inorganic materials 0.000 description 4
- 239000001301 oxygen Substances 0.000 description 4
- 239000010452 phosphate Substances 0.000 description 4
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 238000000746 purification Methods 0.000 description 4
- 238000011160 research Methods 0.000 description 4
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 210000004027 cell Anatomy 0.000 description 3
- 238000012258 culturing Methods 0.000 description 3
- 238000012851 eutrophication Methods 0.000 description 3
- 230000000050 nutritive effect Effects 0.000 description 3
- 239000002352 surface water Substances 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- MMDJDBSEMBIJBB-UHFFFAOYSA-N [O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O.[NH6+3] Chemical compound [O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O.[NH6+3] MMDJDBSEMBIJBB-UHFFFAOYSA-N 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 2
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 description 2
- 239000002551 biofuel Substances 0.000 description 2
- 229930002868 chlorophyll a Natural products 0.000 description 2
- 230000002354 daily effect Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 239000003344 environmental pollutant Substances 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 239000000413 hydrolysate Substances 0.000 description 2
- 230000003301 hydrolyzing effect Effects 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 231100000719 pollutant Toxicity 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 150000008163 sugars Chemical class 0.000 description 2
- 239000002351 wastewater Substances 0.000 description 2
- 241001495180 Arthrospira Species 0.000 description 1
- 206010021033 Hypomenorrhoea Diseases 0.000 description 1
- 241000206744 Phaeodactylum tricornutum Species 0.000 description 1
- 240000004808 Saccharomyces cerevisiae Species 0.000 description 1
- 235000014680 Saccharomyces cerevisiae Nutrition 0.000 description 1
- 230000005791 algae growth Effects 0.000 description 1
- 239000005422 algal bloom Substances 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 238000009360 aquaculture Methods 0.000 description 1
- 244000144974 aquaculture Species 0.000 description 1
- 230000001651 autotrophic effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000036983 biotransformation Effects 0.000 description 1
- 235000014633 carbohydrates Nutrition 0.000 description 1
- 210000003850 cellular structure Anatomy 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 239000002283 diesel fuel Substances 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 230000003203 everyday effect Effects 0.000 description 1
- 238000000855 fermentation Methods 0.000 description 1
- 230000004151 fermentation Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 230000012010 growth Effects 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 239000010842 industrial wastewater Substances 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
- 239000010841 municipal wastewater Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000000243 photosynthetic effect Effects 0.000 description 1
- 238000012805 post-processing Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 102000004169 proteins and genes Human genes 0.000 description 1
- 108090000623 proteins and genes Proteins 0.000 description 1
- 230000002285 radioactive effect Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 238000004065 wastewater treatment Methods 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
- C02F3/32—Biological treatment of water, waste water, or sewage characterised by the animals or plants used, e.g. algae
- C02F3/322—Biological treatment of water, waste water, or sewage characterised by the animals or plants used, e.g. algae use of algae
-
- 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
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12N—MICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA
- C12N1/00—Microorganisms, e.g. protozoa; Compositions thereof; Processes of propagating, maintaining or preserving microorganisms or compositions thereof; Processes of preparing or isolating a composition containing a microorganism; Culture media therefor
- C12N1/12—Unicellular algae; Culture media therefor
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12N—MICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA
- C12N1/00—Microorganisms, e.g. protozoa; Compositions thereof; Processes of propagating, maintaining or preserving microorganisms or compositions thereof; Processes of preparing or isolating a composition containing a microorganism; Culture media therefor
- C12N1/20—Bacteria; Culture media therefor
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/105—Phosphorus compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/16—Nitrogen compounds, e.g. ammonia
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/16—Nitrogen compounds, e.g. ammonia
- C02F2101/163—Nitrates
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2301/00—General aspects of water treatment
- C02F2301/08—Multistage treatments, e.g. repetition of the same process step under different conditions
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2305/00—Use of specific compounds during water treatment
- C02F2305/06—Nutrients for stimulating the growth of microorganisms
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Biotechnology (AREA)
- Health & Medical Sciences (AREA)
- Organic Chemistry (AREA)
- Microbiology (AREA)
- Zoology (AREA)
- Wood Science & Technology (AREA)
- Genetics & Genomics (AREA)
- Bioinformatics & Cheminformatics (AREA)
- Hydrology & Water Resources (AREA)
- Biodiversity & Conservation Biology (AREA)
- Tropical Medicine & Parasitology (AREA)
- Virology (AREA)
- Water Supply & Treatment (AREA)
- Biomedical Technology (AREA)
- Environmental & Geological Engineering (AREA)
- Medicinal Chemistry (AREA)
- Botany (AREA)
- Biochemistry (AREA)
- General Engineering & Computer Science (AREA)
- General Health & Medical Sciences (AREA)
- Cell Biology (AREA)
- Micro-Organisms Or Cultivation Processes Thereof (AREA)
- Preparation Of Compounds By Using Micro-Organisms (AREA)
- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
Abstract
本发明公开了一种净化二级尾水或污泥上清液耦合生产藻源糖的方法,包括以下步骤:1)二级尾水或污泥上清液流入反应器A,利用微藻去除水中氮磷;2)反应器A出水过滤后外排,浓缩的高浓度藻液排入反应器B;当反应器A中藻类生物量不足时,可将适量的高浓度藻液回流至反应器A;3)反应器B中补充营养和微量元素,添加光合作用促进剂和代谢干扰剂,促进糖类增加;4)培养结束后,经过过滤或离心后形成高浓度藻液,干燥后得到藻粉。本发明将二级尾水或污泥上清液水质提升和藻源性糖类生产相结合,大大降低了出水氮磷,还解决了藻源性糖类生产中大量生物量的供给问题,有效降低了培养成本。
Description
技术领域
本发明属于环境保护和生物能源技术领域,特别是涉及一种利用微藻深度净化污水处理厂尾水或污泥上清液耦合生产藻源糖的方法。
背景技术
随着城市化的发展,城市生活污水量大大增加,城镇污水处理厂排放的尾水量(包括二级尾水和污泥上清液)也十分庞大。依据《城镇污水处理厂污染物排放标准(GB18918-2002)》,即使是符合排放标准的二级尾水,其中总氮、总磷含量也均未达到《地表水环境质量标准(GB3838-2002)》中Ⅳ、Ⅴ类功能水域质量标准的要求,而污泥上清液中氮、磷的浓度则更高,达到几十mg/L,甚至超过100 mg/L。含有较高氮、磷的尾水排入河流、湖泊时,会大大增加受纳水体的营养负荷,加速富营养化进程。目前我国的污水处理厂已采用活性炭吸附法、膜分离法、高级氧化法等方法来进一步去除尾水中的氮、磷,但这些方法通常成本较高,且不具备附加的经济价值。
氮、磷是藻类生长的必需元素,氮磷含量过多会导致水体富营养化进而引发藻类水华。藻类是分布广泛、光合利用率高的自养微生物,具有增殖速度快、环境适应性强、不与传统农业争夺土地资源的特点。目前已有相关文献及科研成果表明利用藻类去除水体中过剩的营养盐具有至少和化学处理法相等的效率。用经过一定处理的污水或尾水培养藻,可以使水质得到进一步净化,减少环境污染。这种废水净化方式将藻类培养和生物净化相结合,成本低、耗能少、效益明显,且开发潜力大。藻类可以利用工业废水(不含重金属和放射性同位素)、水产养殖污水等含有的有机物、氮、磷作为营养来源,并减轻水体富营养化压力。研究表明,实验室条件下藻类已广泛用于废水的脱氮除磷。然而,藻类的后续处理存在一定问题。剩余藻类的处理会增加运行成本,而且,若处理不当,可能会导致受纳水体爆发水华。
对剩余藻类加以利用是比较有前景的处理方式。藻细胞生长代谢过程中可产生大量的蛋白质、碳水化合物(糖)、脂肪和其他物质,可通过生物转化或后加工形成多种形式的生物能源、工业和食物原料,具有一定的经济价值。在藻类能源化方面,目前国内外已经广泛开展利用微藻制备柴油、乙醇、氢气等生物燃料的研究。绝大多数采用常规手段培养的微藻,其脂类(8-15%)和糖(10%-30%)含量偏低,普遍认为不适合直接作为生产生物燃料的原料。
一些研究发现,通过控制培养条件可能诱导微藻生产特定细胞成分物质,如研究发现氮限制培养可诱导小球藻、栅藻、节旋藻、三角褐指藻等微藻生产脂类或糖,其含量可提升至50%以上。然而,这一方法仅仅在藻类资源化领域有所应用,且藻类的大规模培养需要有充足的水源、营养盐等供给,这会使培养成本过高,压缩其经济和生态效益。此外,胁迫条件下,微藻的增殖速率明显降低,导致产量减少,进而影响脂类或糖的生产,这也是亟待解决的技术难题。
发明内容
本发明的目的是提供一种利用微藻深度净化污水厂尾水或污泥上清液,并同步生产藻源糖的方法,该方法将水质净化和藻类资源化培养两个工艺相结合,即利用微藻吸收尾水中的氮磷从而提升尾水水质,同时培养产生大量微藻生物量,并进一步调控培养条件定向诱导生成可供资源化利用的糖。该方法一方面可以实现尾水深度净化,另一方面产生的大量藻泥可以同步实现资源化,从而可以降低处理成本,提高经济和生态效益。
本发明的目的可以通过以下技术方案来实现:
一种净化二级尾水或污泥上清液耦合生产藻源糖的方法,该方法包括以下步骤:
步骤1:污水处理厂尾水或污泥上清液流入反应器A,接种微藻,叶绿素浓度为 2-8 mg/L,调控pH至7.5-9,曝气,进行第一阶段培养,该阶段水力停留时间为1-4天;
步骤2:步骤1出水经过过滤装置过滤后外排,微藻过滤或离心浓缩后形成叶绿素浓度为15-30 mg /L的高浓度藻液;高浓度藻液回流比根据反应器A每天微藻的增殖量和出水中微藻生物量确定,当增殖量小于出藻量时,高浓度藻液回流至反应器A,回流比为20-90%,补充其藻类生物量;剩余部分进入反应器B;
步骤3:反应器B中补充营养和微量元素,曝气,并添加0.02-4‰光合作用促进剂和1-3‰代谢干扰剂,进行第二阶段培养,培养时间为2-4天;
步骤4:收集经步骤3培养的藻,利用过滤装置过滤或离心浓缩后形成含水率90-98%的浓藻液,40-80 ℃干燥,时间24-48 h;收集藻粉,即为藻源糖。
所述微藻为小球藻、栅藻、微囊藻或螺旋藻。
所述的反应器A和反应器B中曝气在光周期时实施。
所述反应器A和反应器B条件为:光照10000-100000 lx,光暗周期14h-24h:10h-0h,温度28-35℃。
所述步骤1中反应器A水力停留时间根据出水N、P浓度确定。
所述反应器B为2-4个平行的培养池,第一个培养池接受第一天的反应器A出水,第二个培养池接受第二天的反应器A出水,以此类推;当培养池微藻的糖含量超过干重的50%时,收获微藻,收获结束后再次接受反应器A排出的高浓度藻液。
所述步骤4光合作用促进剂为氯化胆碱、氯化铁或碳酸氢钠;代谢干扰剂为水杨酸、氯化钠、乙烯或氯化锌;营养和微量元素为硝酸钠(或硝酸钾)、磷酸氢二钾、氯化锰、硼酸、硫酸锌、硫酸铜、硝酸钴或钼酸钠。
本发明的有益效果是:
1)本发明将尾水或污泥上清液用于培养微藻,营养盐转化为微藻生物量,生产的藻源性糖类可用于后续制备生物能源,如生物乙醇、甲烷、氢气等。不是将营养盐单纯作为污染物看待,而是考虑其利用价值,一举两得,即解决了生态和环境问题,又解决了能源问题。
2)本发明解决了微藻大规模培养所需要水源、营养盐等供给问题,将微藻生物量生产阶段和水质提升阶段合并,解决了藻源糖的生产中大量生物量的供给问题,大大缩短了生产周期,有效减少了培养成本。
附图说明
图1为本发明流程图。
具体实施方式
下面结合几个具体的实施例,对本发明所述方法做进一步的说明。
实施例1
某污水处理厂的污泥上清液无机氮(硝氮、氨氮)浓度约为19.8 mg/L,磷酸盐浓度约为3.45 mg/L。反应器A体积为10 L,微藻叶绿素a浓度设置为4-5 mg/L,光照15000-20000 lx,光暗周期16h:8h,温度28℃,调控pH至约为8,曝气。为保证反应器A出水氮、磷浓度基本符合《地表水环境质量标准(GB3838-2002)》中Ⅴ类功能水域质量标准的要求,设置水力停留时间为4天。反应器A连续运行约30天,经过初期2-3天的适应期后,出水水质稳定,其中无机氮0.4-1.3 mg/L,去除率为93.4-98.0%;磷酸盐0.10-0.25 mg/L,去除率为92.8-97.1%; TN为0.89-1.57 mg/L,TP为0.29-0.53 mg/L,COD为7.2-15.3 mg/L。微藻日产量(以叶绿素计)为3.86-4.27 mg /L/d,与每日出水中微藻的量相当,不设置回流,高浓度藻液进入反应器B。
反应器B体积为0.8 L,数量4个。反应器A微藻浓缩至叶绿素浓度约为15 mg/L,进入反应器B,添加营养和微量元素,曝气,并添加2‰光合作用促进剂和2‰代谢干扰剂,置于约40000 lx,28℃下培养。定期测定干重和糖产量,计算糖含量;测定藻细胞内含物的化学需氧量(COD)和生化需氧量(BOD),计算BOD/COD用于表征其可生化性。培养4天后,干重由1.03 g/L增加至3.52 g/L,糖由0.10 g/L增加至2.26 g/L。A池藻的微藻糖含量为10.0%,B池增加至64.3%,A池的BOD/COD为0.41,B池增加至0.87,藻的糖含量和生物可利用性显著提升。反应器B中微藻经离心浓缩,60℃干燥48小时后收集。
实施例2
某污水处理厂的二级尾水无机氮(硝氮、氨氮)浓度约为5.1 mg/L,磷酸盐浓度约为0.52 mg/L。反应器A体积为10 L,微藻叶绿素a浓度设置为2.5-3.0 mg/L,光照10000-12000lx,光暗周期14h:10h,温度28℃,调控pH至约为8,曝气。为保证反应器A出水氮、磷浓度基本符合《地表水环境质量标准(GB3838-2002)》中Ⅴ类功能水域质量标准的要求,设置水力停留时间为1天。反应器A连续运行约30天,经过初期2-3天的适应期后,出水水质稳定,其中无机氮0.20-0.72 mg/L,去除率为85.9-96.0%;磷酸盐0.03-0.09 mg/L,去除率为82.7-94.2%;TN为0. 4-1.01 mg/L,TP为0.07-0.21 mg/L,COD为5.3-8.2 mg/L。微藻日产量(以叶绿素计)为2.96-3.61 mg/L/d,小于每日出水中微藻的量。为确保反应器A内微藻生物量稳定,设置回流比为5/6,剩余1/6的高浓度藻液进入反应器B,进行第二阶段培养。
反应器B体积为0.6 L,数量4个。反应器A微藻浓缩至叶绿素浓度约为10 mg/L,进入反应器B,添加营养和微量元素,曝气,并添加1.5‰光合作用促进剂和1‰代谢干扰剂,置于约30000 lx,28℃下培养。定期测定干重和糖产量,计算糖含量;测定藻细胞内含物的化学需氧量(COD)和生化需氧量(BOD),计算BOD/COD用于表征其可生化性。培养4天后,干重由0.63 g/L增加至2.18 g/L,糖由0.06 g/L增加至1.30 g/L。A池藻的微藻糖含量为9.3%,B池增加至59.7%,A池的BOD/COD为0.42,B池增加至0.88,藻的糖含量和生物可利用性显著提升。反应器B中微藻经离心浓缩,60℃干燥48小时后收集。
实施例3
将实施例1收集的1.2 g藻粉反应器B产出的藻粉直接溶于40 ml 5%(v/v)的硫酸溶液中,制成30 g/L的藻液。121℃高温水解30 min,水解液经0.45 μm滤膜过滤,水解液NaOH固体调节至pH=6.5±0.2,加入酿酒酵母,以150r/min的速度在35℃下发酵72 h。同时将反应器A产出的藻粉置于同样条件下水解发酵。
30 g/L的反应器B藻粉产生生物乙醇浓度8.44 g/L,乙醇产率28.1 %,而30 g/L的反应器A藻粉产生生物乙醇浓度仅为0.93 g/L,乙醇产率为3.1%。经反应器B培养后,微藻的乙醇产率显著提升。经该工艺培养的微藻制备生产生物能源的潜力大幅提高。
以上所述为本发明的较佳实施例而已,但本发明不应该局限于该实施例所公开的内容。所以凡是不脱离本发明所公开的精神下完成的等效或修改,都落入本发明的保护范围。
Claims (7)
1.一种净化二级尾水或污泥上清液耦合生产藻源糖的方法,其特征在于,该方法包括以下步骤:
步骤1:污水处理厂尾水或污泥上清液流入反应器A,接种微藻,叶绿素浓度为 2-8 mg/L,调控pH至7.5-9,曝气,进行第一阶段培养,该阶段水力停留时间为1-4天;
步骤2:步骤1出水经过过滤装置过滤后外排,微藻过滤或离心浓缩后形成叶绿素浓度为15-30 mg /L的高浓度藻液;高浓度藻液回流比根据反应器A每天微藻的增殖量和出水中微藻生物量确定,当增殖量小于出藻量时,高浓度藻液回流至反应器A,回流比为20-90%,补充其藻类生物量;剩余部分进入反应器B;
步骤3:反应器B中补充营养和微量元素,曝气,并添加0.02-4‰光合作用促进剂和1-3‰代谢干扰剂,进行第二阶段培养,培养时间为2-4天;
步骤4:收集经步骤3培养的藻,利用过滤装置过滤或离心浓缩后形成含水率90-98%的浓藻液,40-80 ℃干燥,时间24-48 h;收集藻粉,即为藻源糖。
2.根据权利要求1所述的净化二级尾水或污泥上清液耦合生产藻源糖的方法,其特征在于,所述微藻为小球藻、栅藻、微囊藻或螺旋藻。
3.根据权利要求1所述的净化二级尾水或污泥上清液耦合生产藻源糖的方法,其特征在于,所述的反应器A和反应器B中曝气在光周期时实施。
4.根据权利要求1所述的净化二级尾水或污泥上清液耦合生产藻源糖的方法,其特征在于,所述反应器A和反应器B条件为:光照10000-100000 lx,光暗周期14h-24h:10h-0h,温度28-35℃。
5.根据权利要求1所述的净化二级尾水或污泥上清液耦合生产藻源糖的方法,其特征在于,所述步骤1中反应器A水力停留时间根据出水N、P浓度确定。
6.根据权利要求1所述的净化二级尾水或污泥上清液耦合生产藻源糖的方法,其特征在于,所述反应器B为2-4个平行的培养池,第一个培养池接受第一天的反应器A出水,第二个培养池接受第二天的反应器A出水,以此类推;当培养池微藻的糖含量超过干重的50%时,收获微藻,收获结束后再次接受反应器A排出的高浓度藻液。
7.根据权利要求1所述的净化二级尾水或污泥上清液耦合生产藻源糖的方法,其特征在于,所述步骤4光合作用促进剂为氯化胆碱、氯化铁或碳酸氢钠;代谢干扰剂为水杨酸、氯化钠、乙烯或氯化锌;营养和微量元素为硝酸钠或硝酸钾、磷酸氢二钾、氯化锰、硼酸、硫酸锌、硫酸铜、硝酸钴或钼酸钠。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201910826798.8A CN110591918A (zh) | 2019-09-03 | 2019-09-03 | 净化二级尾水或污泥上清液耦合生产藻源糖的方法 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201910826798.8A CN110591918A (zh) | 2019-09-03 | 2019-09-03 | 净化二级尾水或污泥上清液耦合生产藻源糖的方法 |
Publications (1)
Publication Number | Publication Date |
---|---|
CN110591918A true CN110591918A (zh) | 2019-12-20 |
Family
ID=68857364
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201910826798.8A Pending CN110591918A (zh) | 2019-09-03 | 2019-09-03 | 净化二级尾水或污泥上清液耦合生产藻源糖的方法 |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN110591918A (zh) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111747534A (zh) * | 2020-07-27 | 2020-10-09 | 南昌航空大学 | 垃圾渗滤液的处理方法 |
CN112499886A (zh) * | 2020-10-22 | 2021-03-16 | 河海大学 | 一种城市污水碳氮磷全回收的两段资源化*** |
CN112537848A (zh) * | 2020-11-30 | 2021-03-23 | 华川技术有限公司 | 一种用于污水厂尾水水质提升的工艺 |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101525576A (zh) * | 2009-04-14 | 2009-09-09 | 中华绿油有限公司 | 利用生活污水和工业废水生产微藻的方法 |
CN102863115A (zh) * | 2011-07-07 | 2013-01-09 | 江南大学 | 一种利用微藻处理发酵工业废水并生产藻粉的方法 |
CN105417877A (zh) * | 2015-12-16 | 2016-03-23 | 苏州恺利尔环保科技有限公司 | 一种畜禽废水处理新工艺 |
CN105603019A (zh) * | 2016-01-29 | 2016-05-25 | 厦门大学 | 一种利用沼液耦合微藻积累碳水化合物的方法 |
CN106399113A (zh) * | 2016-12-21 | 2017-02-15 | 江南大学 | 一种膜光生物反应器中利用市政污水高密度培养微藻的方法 |
CN109913278A (zh) * | 2019-03-28 | 2019-06-21 | 哈尔滨工业大学(深圳) | 利用城市生活污水与污泥浓缩池上清液混合培养小球藻与栅藻生产生物柴油的方法 |
-
2019
- 2019-09-03 CN CN201910826798.8A patent/CN110591918A/zh active Pending
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101525576A (zh) * | 2009-04-14 | 2009-09-09 | 中华绿油有限公司 | 利用生活污水和工业废水生产微藻的方法 |
CN102863115A (zh) * | 2011-07-07 | 2013-01-09 | 江南大学 | 一种利用微藻处理发酵工业废水并生产藻粉的方法 |
CN105417877A (zh) * | 2015-12-16 | 2016-03-23 | 苏州恺利尔环保科技有限公司 | 一种畜禽废水处理新工艺 |
CN105603019A (zh) * | 2016-01-29 | 2016-05-25 | 厦门大学 | 一种利用沼液耦合微藻积累碳水化合物的方法 |
CN106399113A (zh) * | 2016-12-21 | 2017-02-15 | 江南大学 | 一种膜光生物反应器中利用市政污水高密度培养微藻的方法 |
CN109913278A (zh) * | 2019-03-28 | 2019-06-21 | 哈尔滨工业大学(深圳) | 利用城市生活污水与污泥浓缩池上清液混合培养小球藻与栅藻生产生物柴油的方法 |
Non-Patent Citations (2)
Title |
---|
项荩仪: ""基于小球藻培养的市政污水处理研究"", 《中国优秀博硕士学位论文全文数据库(硕士)工程科技Ⅰ辑》 * |
项荩仪: ""基于小球藻培养的市政污水处理研究"", 《中国优秀博硕士学位论文全文数据库(硕士)工程科技Ⅰ辑》, 15 January 2018 (2018-01-15), pages 027 - 742 * |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111747534A (zh) * | 2020-07-27 | 2020-10-09 | 南昌航空大学 | 垃圾渗滤液的处理方法 |
CN111747534B (zh) * | 2020-07-27 | 2022-10-14 | 南昌航空大学 | 垃圾渗滤液的处理方法 |
CN112499886A (zh) * | 2020-10-22 | 2021-03-16 | 河海大学 | 一种城市污水碳氮磷全回收的两段资源化*** |
CN112499886B (zh) * | 2020-10-22 | 2021-12-14 | 河海大学 | 一种城市污水碳氮磷全回收的两段资源化*** |
CN112537848A (zh) * | 2020-11-30 | 2021-03-23 | 华川技术有限公司 | 一种用于污水厂尾水水质提升的工艺 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
Li et al. | Microalgae-based wastewater treatment for nutrients recovery: A review | |
Gao et al. | Simultaneous nutrient removal and biomass/lipid production by Chlorella sp. in seafood processing wastewater | |
Ruiz-Martinez et al. | Microalgae cultivation in wastewater: nutrient removal from anaerobic membrane bioreactor effluent | |
Hongyang et al. | Cultivation of Chlorella pyrenoidosa in soybean processing wastewater | |
CN102336498B (zh) | 一种序批式反应器耦合光生物反应器处理氮磷污水的方法 | |
CN110697986B (zh) | 基于能源循环利用的菌藻耦合污水处理装置及其使用方法 | |
CN102718325B (zh) | 培养高密度油脂微藻处理酵母工业废水的方法 | |
CN104630295B (zh) | 一种利用固定化微藻处理城市二级废水及生产油脂的方法 | |
CN105174476A (zh) | 用于废水处理的活性污泥与微藻耦合颗粒化***及其构建和运行方法 | |
CN110591918A (zh) | 净化二级尾水或污泥上清液耦合生产藻源糖的方法 | |
Zhou et al. | Pretreatment of pig manure liquid digestate for microalgae cultivation via innovative flocculation-biological contact oxidation approach | |
CN110885756A (zh) | 利用污泥厌氧消化液培养产油小球藻的方法 | |
CN103981220B (zh) | 一种氢烷发酵耦合微藻养殖处理有机废弃物的方法 | |
CN105417877A (zh) | 一种畜禽废水处理新工艺 | |
CN102583767B (zh) | 一种利用微藻处理污水并生产生物油脂的***及方法 | |
CN106630483B (zh) | 一种基于藻菌共生的高效净化沼液的方法 | |
CN101366444A (zh) | 谷氨酸废水生产高蛋白盐藻饲料添加剂的方法 | |
Zhang et al. | Ammonia-nitrogen and orthophosphate removal by immobilized Chlorella sp. isolated from municipal wastewater for potential use in tertiary treatment | |
CN103663715A (zh) | 一种利用微藻高效净化沼液的生物处理方法 | |
CN113105991B (zh) | 一种微纳米气泡培养采收一体化微藻生物膜反应器及其微藻培养采收方法 | |
CN113307377A (zh) | 一种利用活性微藻耦合处理发酵排放废气与废水的方法 | |
CN109942091A (zh) | 菌藻附着型生物纤维床及其制备方法及其强化处理猪废水脱氮除磷的方法 | |
Huang et al. | Effect of external acetate added in aquaculture wastewater on mixotrophic cultivation of microalgae, nutrient removal, and membrane contamination in a membrane photobioreactor | |
CN102994565A (zh) | 一种促进藻类废液厌氧发酵产沼气的方法 | |
CN101037280A (zh) | 米酒糟废水的处理方法及处理装置 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PB01 | Publication | ||
PB01 | Publication | ||
SE01 | Entry into force of request for substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
RJ01 | Rejection of invention patent application after publication | ||
RJ01 | Rejection of invention patent application after publication |
Application publication date: 20191220 |