JP5826850B2 - 同時的に行う低酸素で生物的なリンと窒素の除去 - Google Patents
同時的に行う低酸素で生物的なリンと窒素の除去 Download PDFInfo
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- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 title claims description 72
- 229910052698 phosphorus Inorganic materials 0.000 title claims description 72
- 239000011574 phosphorus Substances 0.000 title claims description 72
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 title claims description 41
- 229910052757 nitrogen Inorganic materials 0.000 title claims description 16
- 206010021143 Hypoxia Diseases 0.000 title claims description 8
- 230000001146 hypoxic effect Effects 0.000 title claims description 5
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 103
- 239000001301 oxygen Substances 0.000 claims description 103
- 229910052760 oxygen Inorganic materials 0.000 claims description 103
- 239000010802 sludge Substances 0.000 claims description 78
- 238000000034 method Methods 0.000 claims description 50
- 239000002351 wastewater Substances 0.000 claims description 42
- 238000005273 aeration Methods 0.000 claims description 35
- 239000012528 membrane Substances 0.000 claims description 33
- 239000011368 organic material Substances 0.000 claims description 30
- 230000008569 process Effects 0.000 claims description 29
- 241000894006 Bacteria Species 0.000 claims description 21
- 239000000203 mixture Substances 0.000 claims description 20
- 229910002651 NO3 Inorganic materials 0.000 claims description 18
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 claims description 18
- IOVCWXUNBOPUCH-UHFFFAOYSA-M Nitrite anion Chemical compound [O-]N=O IOVCWXUNBOPUCH-UHFFFAOYSA-M 0.000 claims description 12
- 238000000855 fermentation Methods 0.000 claims description 12
- 230000004151 fermentation Effects 0.000 claims description 12
- 230000012010 growth Effects 0.000 claims description 9
- 239000002846 particulate organic matter Substances 0.000 claims description 9
- 239000000126 substance Substances 0.000 claims description 8
- 244000005700 microbiome Species 0.000 claims description 7
- 239000005416 organic matter Substances 0.000 claims description 7
- 239000005446 dissolved organic matter Substances 0.000 claims description 6
- 239000007788 liquid Substances 0.000 claims description 6
- 238000002156 mixing Methods 0.000 claims description 4
- 230000000977 initiatory effect Effects 0.000 claims description 2
- 238000011144 upstream manufacturing Methods 0.000 claims description 2
- 238000004064 recycling Methods 0.000 claims 1
- 238000006243 chemical reaction Methods 0.000 description 34
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 30
- 229910052799 carbon Inorganic materials 0.000 description 30
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 28
- 238000004065 wastewater treatment Methods 0.000 description 17
- 229910021529 ammonia Inorganic materials 0.000 description 14
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 9
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 8
- 229910001873 dinitrogen Inorganic materials 0.000 description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 8
- 229910001868 water Inorganic materials 0.000 description 8
- 230000007062 hydrolysis Effects 0.000 description 6
- 238000006460 hydrolysis reaction Methods 0.000 description 6
- 230000003647 oxidation Effects 0.000 description 5
- 238000007254 oxidation reaction Methods 0.000 description 5
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 5
- 229910019142 PO4 Inorganic materials 0.000 description 4
- 230000001580 bacterial effect Effects 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 4
- 239000001569 carbon dioxide Substances 0.000 description 4
- 229910002092 carbon dioxide Inorganic materials 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 150000002823 nitrates Chemical class 0.000 description 4
- 239000010452 phosphate Substances 0.000 description 4
- 229920000388 Polyphosphate Polymers 0.000 description 3
- 230000001651 autotrophic effect Effects 0.000 description 3
- 238000000354 decomposition reaction Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000000813 microbial effect Effects 0.000 description 3
- 239000005014 poly(hydroxyalkanoate) Substances 0.000 description 3
- 229920000903 polyhydroxyalkanoate Polymers 0.000 description 3
- 239000001205 polyphosphate Substances 0.000 description 3
- 235000011176 polyphosphates Nutrition 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- 239000002028 Biomass Substances 0.000 description 2
- 241001453382 Nitrosomonadales Species 0.000 description 2
- IOVCWXUNBOPUCH-UHFFFAOYSA-N Nitrous acid Chemical compound ON=O IOVCWXUNBOPUCH-UHFFFAOYSA-N 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- -1 hydrogen cations Chemical class 0.000 description 2
- 230000007954 hypoxia Effects 0.000 description 2
- 238000001471 micro-filtration Methods 0.000 description 2
- 230000001546 nitrifying effect Effects 0.000 description 2
- 230000001590 oxidative effect Effects 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 238000003786 synthesis reaction Methods 0.000 description 2
- 238000000108 ultra-filtration Methods 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
- 241000203069 Archaea Species 0.000 description 1
- 241000233866 Fungi Species 0.000 description 1
- 241000700141 Rotifera Species 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 150000001722 carbon compounds Chemical class 0.000 description 1
- 230000010261 cell growth Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000009295 crossflow filtration Methods 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 239000012510 hollow fiber Substances 0.000 description 1
- BHEPBYXIRTUNPN-UHFFFAOYSA-N hydridophosphorus(.) (triplet) Chemical compound [PH] BHEPBYXIRTUNPN-UHFFFAOYSA-N 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 230000003834 intracellular effect Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000005374 membrane filtration Methods 0.000 description 1
- VUZPPFZMUPKLLV-UHFFFAOYSA-N methane;hydrate Chemical compound C.O VUZPPFZMUPKLLV-UHFFFAOYSA-N 0.000 description 1
- 239000011259 mixed solution Substances 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- LFLZOWIFJOBEPN-UHFFFAOYSA-N nitrate, nitrate Chemical compound O[N+]([O-])=O.O[N+]([O-])=O LFLZOWIFJOBEPN-UHFFFAOYSA-N 0.000 description 1
- 150000002826 nitrites Chemical class 0.000 description 1
- HLNRBHDRGMNBEG-UHFFFAOYSA-N nitrous acid Chemical compound ON=O.ON=O HLNRBHDRGMNBEG-UHFFFAOYSA-N 0.000 description 1
- 230000036284 oxygen consumption Effects 0.000 description 1
- 238000006213 oxygenation reaction Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000002957 persistent organic pollutant Substances 0.000 description 1
- QVLTXCYWHPZMCA-UHFFFAOYSA-N po4-po4 Chemical compound OP(O)(O)=O.OP(O)(O)=O QVLTXCYWHPZMCA-UHFFFAOYSA-N 0.000 description 1
- 238000004540 process dynamic Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000006479 redox reaction Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
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- 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
- C02F3/30—Aerobic and anaerobic processes
- C02F3/308—Biological phosphorus removal
-
- 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
- C02F3/30—Aerobic and anaerobic processes
-
- 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
- C02F3/02—Aerobic processes
- C02F3/12—Activated sludge processes
- C02F3/1236—Particular type of activated sludge installations
- C02F3/1268—Membrane bioreactor systems
-
- 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
- C02F3/02—Aerobic processes
- C02F3/12—Activated sludge processes
- C02F3/1236—Particular type of activated sludge installations
- C02F3/1268—Membrane bioreactor systems
- C02F3/1273—Submerged membrane bioreactors
-
- 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
- C02F3/30—Aerobic and anaerobic processes
- C02F3/302—Nitrification and denitrification treatment
-
- 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
- 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
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/02—Aerobic processes
- C02F3/12—Activated sludge processes
- C02F3/1205—Particular type of activated sludge processes
- C02F3/1215—Combinations of activated sludge treatment with precipitation, flocculation, coagulation and separation of phosphates
-
- 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
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/28—Anaerobic digestion processes
- C02F3/2846—Anaerobic digestion processes using upflow anaerobic sludge blanket [UASB] reactors
-
- 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
- C02F3/30—Aerobic and anaerobic processes
- C02F3/302—Nitrification and denitrification treatment
- C02F3/307—Nitrification and denitrification treatment characterised by direct conversion of nitrite to molecular nitrogen, e.g. by using the Anammox process
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S210/00—Liquid purification or separation
- Y10S210/902—Materials removed
- Y10S210/906—Phosphorus containing
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- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
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- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Molecular Biology (AREA)
- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
- Treatment Of Water By Oxidation Or Reduction (AREA)
Description
混合液は、粒状有機物質と溶存態有機物質の発酵を可能にするとともにリン除去性バクテリアの発育のために有利な条件を提供するような低い溶存酸素濃度を有する通気タンクに流入する。次いで、混合液は、活性スラッジからプラントの流出液を分離するためのメンブランタンクに流入する。さらに、活性スラッジの一部は戻りの活性スラッジとして低酸素タンクへ再循環される。
上述したように、本発明の態様によれば、硝化と脱窒素は低酸素タンクと通気タンクの両者において起こる。従来の硝化−脱窒素は、下の反応(7)、(8)および(9)によって表される。反応(9)は反応(7)および(8)の最終結果である。多くの場合、この反応の連鎖は高濃度の溶存酸素と外部の炭素源を必要とする。ここで、反応(7)については1グラムのN-NH3につき約4.57グラムのO2が必要であり、反応(8)については1グラムのN-NO3につき約2.86グラムのCOD-O2が必要である。これらの式は次の通りである。
Claims (18)
- 有機物質、窒素、およびリンを同時に除去するために廃水を処理するための方法であって:
溶存酸素濃度が0.3mg/l未満である低酸素の条件下で作用する第一のタンクの中に二つ以上の流れを供給すること、このとき、その二つ以上の流れはプラントの流入廃水と戻りの活性スラッジを含んでいる;
プラントの流入廃水と戻りの活性スラッジを第一のタンクの中で混合して混合液を形成し、それによってリンの放出および粒状有機物質と溶存態有機物質の発酵を開始させること;
混合液を、微好気性の条件下で作用する第二のタンクへ移すこと、このとき、第二のタンク中の溶存酸素の濃度は0.3mg/l未満であり、これは、同時の硝化、脱窒素、リンの放出、およびリンの取り込みを促進させるのに有効な濃度である;および
混合液を第三のタンクへ移し、そこで、微生物を含む活性スラッジから処理済み流出液を分離させること、このとき、活性スラッジの第一の部分が、戻りの活性スラッジとして第一のタンクへ戻される;
を含む方法。 - 第三のタンクはメンブランバイオリアクターである、請求項1に記載の方法。
- 第三のタンクは清澄器である、請求項1に記載の方法。
- 第一のタンクの中で生じるリンの放出の量は、プラントの流入廃水と戻りの活性スラッジの混合率、または第一のタンクの中への戻りの活性スラッジの流量のうちの一つ以上のものに基づく、請求項1に記載の方法。
- 活性スラッジの第二の部分を第二のタンクの中に加えることをさらに含む、請求項1に記載の方法。
- 第二のタンクの中の微好気性の条件によって、混合液の中の粒状有機物質の発酵が促進される、請求項1に記載の方法。
- 第二のタンクの中の微好気性の条件によって、リンの除去のために用いられる微生物の個体群の発育が可能になる、請求項1に記載の方法。
- 第一のタンクの中に供給される戻りの活性スラッジは、残留酸素、硝酸塩および亜硝酸塩を含む、請求項1に記載の方法。
- 第一のタンクの中の低酸素の条件によって、リンの取り込みが起こることが可能になる、請求項1に記載の方法。
- 有機物質、窒素、およびリンを同時に除去するために廃水を処理するための方法であって:
プラントの流入廃水を戻りの活性スラッジと低酸素タンクの中で接触させて混合液を形成させること、このとき、戻りの活性スラッジは、低酸素タンクの中でリンの放出を開始させることのできるバクテリアを含んでおり、低酸素タンク内の溶存酸素濃度は0.3mg/l未満である;
混合液を、粒状有機物質と溶存態有機物質の発酵を可能にするとともにリン除去性バクテリアの発育のために有利な条件を提供するような0.3mg/l未満の溶存酸素濃度を有する通気タンクに流入させること;
混合液を、活性スラッジからプラントの流出廃水を分離するためのメンブランタンクに流入させること;
活性スラッジの一部を戻りの活性スラッジとして低酸素タンクへ再循環させること;および
プラントの流出廃水をさらなる加工処理へ送ること;
を含む方法。 - プラントの流入廃水と戻りの活性スラッジは、低酸素タンクの中でミキサーによって混合される、請求項10に記載の方法。
- 低酸素タンクの中でリンの放出が起こる、請求項10に記載の方法。
- 通気タンクの中で硝化、脱窒素、リンの放出、およびリンの取り込みが同時に起こる、請求項10に記載の方法。
- 有機物質、窒素、およびリンを同時に除去するために廃水を処理するための装置であって:
プラントの流入廃水と戻りの活性スラッジを受け入れる第一のタンク、ここで、この第一のタンクは、脱窒素、リンの放出、および粒状有機物質と溶存態有機物質の発酵を促進するため、溶存酸素濃度が0.3mg/l未満である低酸素の条件下で作用する;
第一のタンクから混合液を受け入れる第二のタンク、ここで、この第二のタンク中の溶存酸素の濃度は0.3mg/l未満であり、それにより第一のタンクの中へ受け入れた戻りの活性スラッジ中に存在するリン放出性バクテリアの発育が効果的に促進され、そして戻りの活性スラッジ中のリン放出性バクテリアは、第一のタンクの中でのリンの放出と粒状有機物質の発酵を可能にする;および
活性スラッジからプラントの流出廃水を分離する第三のタンク、ここで、活性スラッジの一部は戻りの活性スラッジとして第一のタンクへ再循環される;
以上の構成要素を有する装置。 - 第一のタンクは低酸素タンクであり、第二のタンクは通気タンクであり、そして第三のタンクはメンブランタンクである、請求項14に記載の装置。
- 第二のタンクは微好気性の条件下で作用する、請求項14に記載の装置。
- 第二のタンクの中で硝化、脱窒素、リンの放出、およびリンの取り込みが同時に起こる、請求項16に記載の装置。
- 第一のタンクの下流および第三のタンクの上流に配置される第四のタンクをさらに有し、この第四のタンクは嫌気性の条件下で作用する、請求項14に記載の装置。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US12/886,321 | 2010-09-20 | ||
US12/886,321 US8747671B2 (en) | 2010-09-20 | 2010-09-20 | Simultaneous anoxic biological phosphorus and nitrogen removal |
PCT/US2011/050655 WO2012039931A1 (en) | 2010-09-20 | 2011-09-07 | Simultaneous anoxic biological phosphorus and nitrogen removal |
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Publication Number | Publication Date |
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JP2013537109A JP2013537109A (ja) | 2013-09-30 |
JP5826850B2 true JP5826850B2 (ja) | 2015-12-02 |
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JP2013529142A Expired - Fee Related JP5961169B2 (ja) | 2010-09-20 | 2011-07-07 | 廃水からの最適化された栄養素の除去 |
JP2013529198A Expired - Fee Related JP5826850B2 (ja) | 2010-09-20 | 2011-09-07 | 同時的に行う低酸素で生物的なリンと窒素の除去 |
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