JP2016185515A - 水処理システム及び水処理方法 - Google Patents
水処理システム及び水処理方法 Download PDFInfo
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- JP2016185515A JP2016185515A JP2015066788A JP2015066788A JP2016185515A JP 2016185515 A JP2016185515 A JP 2016185515A JP 2015066788 A JP2015066788 A JP 2015066788A JP 2015066788 A JP2015066788 A JP 2015066788A JP 2016185515 A JP2016185515 A JP 2016185515A
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- water
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- acid
- treated water
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 227
- 238000000034 method Methods 0.000 title claims description 12
- 238000006243 chemical reaction Methods 0.000 claims abstract description 92
- 239000002253 acid Substances 0.000 claims abstract description 88
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims abstract description 80
- 239000011575 calcium Substances 0.000 claims abstract description 73
- 229910052791 calcium Inorganic materials 0.000 claims abstract description 41
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 claims abstract description 40
- 238000000855 fermentation Methods 0.000 claims abstract description 33
- 230000004151 fermentation Effects 0.000 claims abstract description 33
- 239000007788 liquid Substances 0.000 claims abstract description 28
- 238000000926 separation method Methods 0.000 claims abstract description 22
- 239000007787 solid Substances 0.000 claims abstract description 18
- 239000000126 substance Substances 0.000 claims abstract description 11
- 150000007524 organic acids Chemical class 0.000 claims abstract description 6
- 238000004519 manufacturing process Methods 0.000 claims description 18
- 238000004062 sedimentation Methods 0.000 claims description 12
- 230000007423 decrease Effects 0.000 abstract description 9
- 230000015572 biosynthetic process Effects 0.000 abstract description 3
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 33
- 239000008187 granular material Substances 0.000 description 32
- 238000001556 precipitation Methods 0.000 description 23
- 229910000019 calcium carbonate Inorganic materials 0.000 description 15
- 239000003002 pH adjusting agent Substances 0.000 description 12
- 238000005259 measurement Methods 0.000 description 11
- 241000894006 Bacteria Species 0.000 description 9
- BHPQYMZQTOCNFJ-UHFFFAOYSA-N Calcium cation Chemical compound [Ca+2] BHPQYMZQTOCNFJ-UHFFFAOYSA-N 0.000 description 9
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 9
- 229910001424 calcium ion Inorganic materials 0.000 description 9
- 239000008239 natural water Substances 0.000 description 6
- 238000004065 wastewater treatment Methods 0.000 description 6
- 238000007599 discharging Methods 0.000 description 5
- 239000006228 supernatant Substances 0.000 description 5
- 239000002351 wastewater Substances 0.000 description 5
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000005192 partition Methods 0.000 description 4
- 238000012545 processing Methods 0.000 description 4
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 3
- 229920001131 Pulp (paper) Polymers 0.000 description 3
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 3
- 229910000037 hydrogen sulfide Inorganic materials 0.000 description 3
- 229940088417 precipitated calcium carbonate Drugs 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000006722 reduction reaction Methods 0.000 description 3
- 239000011593 sulfur Substances 0.000 description 3
- 229910052717 sulfur Inorganic materials 0.000 description 3
- 238000012546 transfer Methods 0.000 description 3
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 230000003749 cleanliness Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 235000014113 dietary fatty acids Nutrition 0.000 description 2
- 238000010494 dissociation reaction Methods 0.000 description 2
- 230000005593 dissociations Effects 0.000 description 2
- 239000000194 fatty acid Substances 0.000 description 2
- 229930195729 fatty acid Natural products 0.000 description 2
- 150000004665 fatty acids Chemical class 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000007791 liquid phase Substances 0.000 description 2
- 239000010815 organic waste Substances 0.000 description 2
- 238000010979 pH adjustment Methods 0.000 description 2
- 239000002244 precipitate Substances 0.000 description 2
- 239000010802 sludge Substances 0.000 description 2
- 239000011343 solid material Substances 0.000 description 2
- 239000003513 alkali Substances 0.000 description 1
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-N carbonic acid Chemical compound OC(O)=O BVKZGUZCCUSVTD-UHFFFAOYSA-N 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- RWSOTUBLDIXVET-UHFFFAOYSA-M hydrosulfide Chemical compound [SH-] RWSOTUBLDIXVET-UHFFFAOYSA-M 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 235000005985 organic acids Nutrition 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 238000005191 phase separation Methods 0.000 description 1
- 230000001376 precipitating effect Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
Images
Classifications
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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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E50/00—Technologies for the production of fuel of non-fossil origin
- Y02E50/30—Fuel from waste, e.g. synthetic alcohol or diesel
Abstract
【解決手段】カルシウムを含有する原水を処理する水処理システム1において、原水に含まれる被処理水をメタン発酵処理する反応部4と、原水中の有機物から有機酸を生成する酸生成部2と、酸生成部2で処理され反応部4へ送られる処理水からカルシウム含有固形物を固液分離する固液分離部3と、を備える構成とする。
【選択図】図1
Description
次に図3を参照して、第2実施形態に係る水処理システムについて説明する。第2実施形態に係る水処理システムが、第1実施形態の水処理システムと違う点は、酸生成槽(酸生成部)22の内部に、沈殿部23が設けられている点である。以下、第2実施形態の説明において、第1実施形態と同様の説明は省略する。
Claims (5)
- カルシウムを含有する原水を処理する水処理システムであって、
前記原水に含まれる被処理水をメタン発酵処理する反応部と、
前記原水中の有機物から有機酸を生成する酸生成部と、
前記酸生成部で処理され前記反応部へ送られる処理水からカルシウム含有固形物を固液分離する固液分離部と、を備えた水処理システム。 - 前記固液分離部は、前記固液分離として、前記カルシウム含有固形物を沈降分離する請求項1に記載の水処理システム。
- 前記酸生成部で処理された前記処理水のpHが7.5以上8.5以下である請求項1又は2に記載の水処理システム。
- 前記反応部で処理された処理水の一部を前記酸生成部に返送する請求項1〜3の何れか一項に記載の水処理システム。
- カルシウムを含有する原水を処理する水処理方法であって、
前記原水に含まれる被処理水をメタン発酵処理するメタン発酵工程と、
前記原水中の有機物から有機酸を生成する酸生成工程と、
前記酸生成工程で処理された処理水からカルシウム含有固形物を固液分離する固液分離工程と、を備えた水処理方法。
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Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0097388A1 (en) * | 1982-06-23 | 1984-01-04 | Gist-Brocades N.V. | A method and flow-sheet for adapting waste water, being rich in calcium, for an anaerobic fermentation |
JPH0538499A (ja) * | 1991-08-07 | 1993-02-19 | Kurita Water Ind Ltd | ビート糖製造廃水の処理方法 |
JP2587301B2 (ja) * | 1990-02-15 | 1997-03-05 | 株式会社荏原製作所 | メタン発酵処理方法 |
JP2004298677A (ja) * | 2003-03-28 | 2004-10-28 | Asahi Breweries Ltd | 糖質系嫌気性排水処理方法 |
JP2005193189A (ja) * | 2004-01-09 | 2005-07-21 | Kurita Water Ind Ltd | 嫌気性処理方法および装置 |
JP2008012488A (ja) * | 2006-07-07 | 2008-01-24 | Mitsui Eng & Shipbuild Co Ltd | 嫌気性発酵方法及び生物脱硫方法 |
JP2013146673A (ja) * | 2012-01-19 | 2013-08-01 | Japan Organo Co Ltd | 嫌気排水処理装置および嫌気排水処理方法 |
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2015
- 2015-03-27 JP JP2015066788A patent/JP6385872B2/ja active Active
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0097388A1 (en) * | 1982-06-23 | 1984-01-04 | Gist-Brocades N.V. | A method and flow-sheet for adapting waste water, being rich in calcium, for an anaerobic fermentation |
JP2587301B2 (ja) * | 1990-02-15 | 1997-03-05 | 株式会社荏原製作所 | メタン発酵処理方法 |
JPH0538499A (ja) * | 1991-08-07 | 1993-02-19 | Kurita Water Ind Ltd | ビート糖製造廃水の処理方法 |
JP2004298677A (ja) * | 2003-03-28 | 2004-10-28 | Asahi Breweries Ltd | 糖質系嫌気性排水処理方法 |
JP2005193189A (ja) * | 2004-01-09 | 2005-07-21 | Kurita Water Ind Ltd | 嫌気性処理方法および装置 |
JP2008012488A (ja) * | 2006-07-07 | 2008-01-24 | Mitsui Eng & Shipbuild Co Ltd | 嫌気性発酵方法及び生物脱硫方法 |
JP2013146673A (ja) * | 2012-01-19 | 2013-08-01 | Japan Organo Co Ltd | 嫌気排水処理装置および嫌気排水処理方法 |
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