JP4344274B2 - 生物ろ過装置 - Google Patents
生物ろ過装置 Download PDFInfo
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- JP4344274B2 JP4344274B2 JP2004111314A JP2004111314A JP4344274B2 JP 4344274 B2 JP4344274 B2 JP 4344274B2 JP 2004111314 A JP2004111314 A JP 2004111314A JP 2004111314 A JP2004111314 A JP 2004111314A JP 4344274 B2 JP4344274 B2 JP 4344274B2
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- water
- biological filtration
- treated
- oxygen
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- 238000001914 filtration Methods 0.000 title claims description 67
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 109
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 78
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 42
- 239000001301 oxygen Substances 0.000 claims description 42
- 229910052760 oxygen Inorganic materials 0.000 claims description 42
- 229910052742 iron Inorganic materials 0.000 claims description 38
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims description 34
- 238000000034 method Methods 0.000 claims description 19
- 229910021529 ammonia Inorganic materials 0.000 claims description 17
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 claims description 11
- 239000007789 gas Substances 0.000 claims description 5
- 230000002265 prevention Effects 0.000 claims description 5
- 238000007599 discharging Methods 0.000 claims description 3
- 239000011572 manganese Substances 0.000 description 24
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 22
- 229910052748 manganese Inorganic materials 0.000 description 22
- 230000000052 comparative effect Effects 0.000 description 11
- 238000005273 aeration Methods 0.000 description 10
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 9
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 8
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 8
- 239000000460 chlorine Substances 0.000 description 8
- 229910052801 chlorine Inorganic materials 0.000 description 8
- 230000003647 oxidation Effects 0.000 description 7
- 238000007254 oxidation reaction Methods 0.000 description 7
- 241000295146 Gallionellaceae Species 0.000 description 6
- 239000000126 substance Substances 0.000 description 6
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 description 5
- 239000002349 well water Substances 0.000 description 5
- 235000020681 well water Nutrition 0.000 description 5
- 239000003673 groundwater Substances 0.000 description 4
- BZDIAFGKSAYYFC-UHFFFAOYSA-N manganese;hydrate Chemical compound O.[Mn] BZDIAFGKSAYYFC-UHFFFAOYSA-N 0.000 description 4
- 229910052757 nitrogen Inorganic materials 0.000 description 4
- 238000009287 sand filtration Methods 0.000 description 4
- 241000894006 Bacteria Species 0.000 description 3
- 239000012298 atmosphere Substances 0.000 description 3
- 238000002474 experimental method Methods 0.000 description 3
- 238000000746 purification Methods 0.000 description 3
- 239000000377 silicon dioxide Substances 0.000 description 3
- 239000004743 Polypropylene Substances 0.000 description 2
- RHZUVFJBSILHOK-UHFFFAOYSA-N anthracen-1-ylmethanolate Chemical compound C1=CC=C2C=C3C(C[O-])=CC=CC3=CC2=C1 RHZUVFJBSILHOK-UHFFFAOYSA-N 0.000 description 2
- 239000003830 anthracite Substances 0.000 description 2
- 230000015271 coagulation Effects 0.000 description 2
- 238000005345 coagulation Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000001546 nitrifying effect Effects 0.000 description 2
- -1 polypropylene Polymers 0.000 description 2
- 229920001155 polypropylene Polymers 0.000 description 2
- 238000001556 precipitation Methods 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- 230000011218 segmentation Effects 0.000 description 2
- 239000002351 wastewater Substances 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- 241001009039 Gallionella sp. Species 0.000 description 1
- 241001478273 Leptothrix sp. (in: Bacteria) Species 0.000 description 1
- 241001141412 Toxothrix Species 0.000 description 1
- 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 1
- 238000011001 backwashing Methods 0.000 description 1
- 230000007227 biological adhesion Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000008119 colloidal silica Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 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
- 230000005484 gravity Effects 0.000 description 1
- 150000004679 hydroxides Chemical class 0.000 description 1
- 239000008235 industrial water Substances 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 239000008188 pellet Substances 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 239000012286 potassium permanganate Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 241000894007 species Species 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
- 239000003643 water by type Substances 0.000 description 1
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
Description
[鉄]
4Fe(HCO3)2+O2+6H2O
→ 4Fe(OH)3↓+4H2CO3+4CO2↑+58kcal
Fe:O=4×56:16×2=1:0.14
[マンガン]
4Mn(HCO3)2+O2+6H2O
→ 4Mn(OH)3↓+4H2CO3+4CO2↑+76kcal
Mn:O=4×55:16×2=1:0.15
[アンモニア性窒素]
NH4 ++2O2 → NO3−+H2O+2H+
N:O=14:16×4=1:4.57
まず、深井戸水を被処理水とした場合の生物ろ過処理における溶存酸素濃度DOの影響を確認した。図3に示す実験装置によって、深井戸水の連続通水を行った。この実験装置は、生物ろ過装置として、通常の急速ろ過装置を用いた。本体60の内部には、1つのろ層62が設けられている。なお、ろ層62の下方には、支持砂利層64を設け、この内部にストレーナを配置して、ろ過処理水をストレーナを介し排出する。また、この生物ろ過装置の前段に原水槽66を設け、ここに噴水式曝気装置68を設けた。さらに、生物ろ過装置の流入部分は、瀑布式曝気構造とした。
次に、下降流でありながら上部ろ層を低DOとし、下部ろ層を高DOとする図1の装置にて深井戸水の通水実験を行った。上部ろ層24と下部ろ層16の合計のろ層高さは120cm、通水速度LVは225m/d、上部ろ層24の高さは40cmとした。また、空気噴出管18から空気を導入し、溶解しきれない酸素と窒素は余剰空気として空気抜き管32により排出した。
また、比較として、(比較例1、2)生物ろ過装置の流入前に曝気有り、ろ層中部曝気なし、(比較例3)流入前曝気有り(小)、ろ層中部曝気無しでの実験も行った。
Claims (4)
- 被処理水をろ材を充填したろ層に下降流で通過させ、前記ろ材に付着した生物を利用して生物処理を行う生物ろ過装置において、
前記ろ層の中間部において上部ろ層を通過してきた被処理水に酸素含有ガスを供給する酸素供給手段と、
この酸素供給手段によって供給された酸素が前記ろ層の上部に供給されることを防止する酸素供給防止手段と、
を有することを特徴とする生物ろ過装置。 - 請求項1に記載の生物ろ過装置において、
前記酸素供給防止手段は、
前記ろ層の中間部に設けられ、被処理水の流通を許容しつつ、前記ろ層を上下二層に分割する分割床板と、
この分割床板の下部に設けられ、過剰酸素含有ガスを排出する酸素排出手段と、
を有し、
前記酸素供給手段は、前記分割床板の下方に設けられていることを特徴とする生物ろ過装置。 - 請求項2に記載の生物ろ過装置において、
前記分割床板は、前記ろ材の径よりも小さい目開きの網を取り付けてある通水口と、この通水口を包囲して、下方に伸びる通水管を有しており、
前記酸素供給手段は、前記通水管の外側であって、通水管の下端より上方に位置していることを特徴とする生物ろ過装置。 - 請求項1〜3のいずれか1つに記載の生物ろ過装置において、
前記被処理水は、鉄、マンガン、アンモニアのうちの1つ以上を含み、これらのうちの1つ以上を処理対象とすることを特徴とする生物ろ過装置。
Priority Applications (1)
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---|---|---|---|
JP2004111314A JP4344274B2 (ja) | 2004-04-05 | 2004-04-05 | 生物ろ過装置 |
Applications Claiming Priority (1)
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---|---|---|---|
JP2004111314A JP4344274B2 (ja) | 2004-04-05 | 2004-04-05 | 生物ろ過装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2005288416A JP2005288416A (ja) | 2005-10-20 |
JP4344274B2 true JP4344274B2 (ja) | 2009-10-14 |
Family
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Application Number | Title | Priority Date | Filing Date |
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JP2004111314A Expired - Lifetime JP4344274B2 (ja) | 2004-04-05 | 2004-04-05 | 生物ろ過装置 |
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JP (1) | JP4344274B2 (ja) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4579648B2 (ja) * | 2004-10-29 | 2010-11-10 | 株式会社神鋼環境ソリューション | 浄水処理方法及び浄水処理装置 |
JP2007144307A (ja) * | 2005-11-28 | 2007-06-14 | Ishi No Kanzaemon:Kk | 水処理方法及びその処理装置 |
JP5319231B2 (ja) * | 2008-10-10 | 2013-10-16 | オルガノ株式会社 | 生物ろ過装置 |
JP5297221B2 (ja) * | 2009-02-16 | 2013-09-25 | 株式会社テクノ菱和 | 水溶性有機化合物の除去システム |
JP2011104496A (ja) * | 2009-11-16 | 2011-06-02 | Nissin Electric Co Ltd | 生物接触ろ過装置及び地下水浄化システム |
JP5781871B2 (ja) * | 2011-09-12 | 2015-09-24 | 株式会社奥村組 | 鉄、マンガン、アンモニア性窒素を含有する原水の浄化方法、および浄化装置 |
JP5996311B2 (ja) * | 2012-07-19 | 2016-09-21 | 株式会社トーエネック | 排水処理装置及び排水処理方法 |
JP6207067B2 (ja) * | 2013-09-27 | 2017-10-04 | 国立研究開発法人土木研究所 | 藻類増殖抑制方法 |
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2004
- 2004-04-05 JP JP2004111314A patent/JP4344274B2/ja not_active Expired - Lifetime
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