JP2007330919A - 下水処理施設 - Google Patents
下水処理施設 Download PDFInfo
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- JP2007330919A JP2007330919A JP2006167577A JP2006167577A JP2007330919A JP 2007330919 A JP2007330919 A JP 2007330919A JP 2006167577 A JP2006167577 A JP 2006167577A JP 2006167577 A JP2006167577 A JP 2006167577A JP 2007330919 A JP2007330919 A JP 2007330919A
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- sewage
- sewage treatment
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- 239000010865 sewage Substances 0.000 title claims abstract description 72
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 96
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 82
- 239000011574 phosphorus Substances 0.000 claims abstract description 74
- 229910052698 phosphorus Inorganic materials 0.000 claims abstract description 74
- -1 phosphorus compound Chemical class 0.000 claims abstract description 67
- 239000010802 sludge Substances 0.000 claims abstract description 67
- 229910052742 iron Inorganic materials 0.000 claims abstract description 43
- 239000000463 material Substances 0.000 claims abstract description 31
- 238000002848 electrochemical method Methods 0.000 claims abstract description 7
- 239000007788 liquid Substances 0.000 claims description 91
- 238000005868 electrolysis reaction Methods 0.000 claims description 24
- 238000000926 separation method Methods 0.000 claims description 16
- 239000012528 membrane Substances 0.000 claims description 9
- 239000000615 nonconductor Substances 0.000 claims description 9
- 230000018044 dehydration Effects 0.000 claims description 8
- 238000006297 dehydration reaction Methods 0.000 claims description 8
- 238000003795 desorption Methods 0.000 claims description 5
- 238000000034 method Methods 0.000 abstract description 28
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 abstract description 24
- 239000006228 supernatant Substances 0.000 abstract description 4
- 239000002699 waste material Substances 0.000 abstract description 4
- 238000001914 filtration Methods 0.000 description 27
- 229910000398 iron phosphate Inorganic materials 0.000 description 21
- WBJZTOZJJYAKHQ-UHFFFAOYSA-K iron(3+) phosphate Chemical compound [Fe+3].[O-]P([O-])([O-])=O WBJZTOZJJYAKHQ-UHFFFAOYSA-K 0.000 description 21
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 16
- 239000010409 thin film Substances 0.000 description 14
- 239000010408 film Substances 0.000 description 12
- 150000003018 phosphorus compounds Chemical class 0.000 description 12
- 238000001556 precipitation Methods 0.000 description 11
- 238000006243 chemical reaction Methods 0.000 description 8
- 239000000126 substance Substances 0.000 description 8
- 239000004020 conductor Substances 0.000 description 7
- 239000003337 fertilizer Substances 0.000 description 7
- 208000005156 Dehydration Diseases 0.000 description 6
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 6
- 229920000642 polymer Polymers 0.000 description 6
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 238000002425 crystallisation Methods 0.000 description 4
- 229940085991 phosphate ion Drugs 0.000 description 4
- 239000002244 precipitate Substances 0.000 description 4
- 238000005119 centrifugation Methods 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 3
- 239000010419 fine particle Substances 0.000 description 3
- CWYNVVGOOAEACU-UHFFFAOYSA-N iron (II) ion Substances [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 3
- 238000002844 melting Methods 0.000 description 3
- 230000008018 melting Effects 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- 238000011084 recovery Methods 0.000 description 3
- 238000004062 sedimentation Methods 0.000 description 3
- 238000005273 aeration Methods 0.000 description 2
- 230000008025 crystallization Effects 0.000 description 2
- 239000008394 flocculating agent Substances 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 229910052588 hydroxylapatite Inorganic materials 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 239000003002 pH adjusting agent Substances 0.000 description 2
- XYJRXVWERLGGKC-UHFFFAOYSA-D pentacalcium;hydroxide;triphosphate Chemical compound [OH-].[Ca+2].[Ca+2].[Ca+2].[Ca+2].[Ca+2].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O XYJRXVWERLGGKC-UHFFFAOYSA-D 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 125000006850 spacer group Chemical group 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 229920003002 synthetic resin Polymers 0.000 description 2
- 239000000057 synthetic resin Substances 0.000 description 2
- 238000011144 upstream manufacturing Methods 0.000 description 2
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- JLVVSXFLKOJNIY-UHFFFAOYSA-N Magnesium ion Chemical compound [Mg+2] JLVVSXFLKOJNIY-UHFFFAOYSA-N 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- MXZRMHIULZDAKC-UHFFFAOYSA-L ammonium magnesium phosphate Chemical compound [NH4+].[Mg+2].[O-]P([O-])([O-])=O MXZRMHIULZDAKC-UHFFFAOYSA-L 0.000 description 1
- CKMXBZGNNVIXHC-UHFFFAOYSA-L ammonium magnesium phosphate hexahydrate Chemical compound [NH4+].O.O.O.O.O.O.[Mg+2].[O-]P([O-])([O-])=O CKMXBZGNNVIXHC-UHFFFAOYSA-L 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000006209 dephosphorylation reaction Methods 0.000 description 1
- 239000007772 electrode material Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- BHEPBYXIRTUNPN-UHFFFAOYSA-N hydridophosphorus(.) (triplet) Chemical class [PH] BHEPBYXIRTUNPN-UHFFFAOYSA-N 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 229910001425 magnesium ion Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910052567 struvite Inorganic materials 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 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
Landscapes
- Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)
- Chemical Treatment Of Metals (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
- Activated Sludge Processes (AREA)
- Removal Of Specific Substances (AREA)
- Treatment Of Sludge (AREA)
- Water Treatment By Electricity Or Magnetism (AREA)
- Electrodes For Compound Or Non-Metal Manufacture (AREA)
Abstract
【解決手段】少なくともリン化合物を含む下水を処理するものであって、下水の処理工程において排出されるリン化合物を含む汚泥を脱水処理する濃縮・脱水機4と、該脱水機4にて分離された脱離液を電気化学的手法により処理する電解処理装置5と、電解処理装置5にて処理された後の脱離液を返流水として下水の処理工程の前段に返送する返送配管7とを備え、電解処理装置5は、脱離液に少なくとも一部が浸漬された一対の電解用電極12、13を備え、少なくともアノードを構成する電解用電極12は、鉄材料を含む。
【選択図】図1
Description
反応A Fe3++PO4 3-→FePO4↓
これにより、脱離液中に含有されたリン化合物としてのリン酸イオンをリン酸鉄として沈殿処理することができる。
2 水処理手段
3 汚泥処理システム
4 濃縮・脱水機
5 電解処理装置
6 ろ過装置
7 返送配管
10 処理室
11 処理槽
12、42 電極(アノード)
12A 電極部
12B 底壁
12C 側壁
13、43 電極(カソード)
14 電源
15 鉄材料
16 不導体
22 ろ過処理槽
24 微孔性薄膜
28 ブロワー
30 膜体
Claims (5)
- 少なくともリン化合物を含む下水を処理する下水処理施設において、
前記下水の処理工程において排出される前記リン化合物を含む汚泥を脱水処理する脱水手段と、
前記脱水手段にて分離された脱離液を電気化学的手法により処理する電解処理手段と、
前記電解処理手段にて処理された後の脱離液を返流水として前記下水の処理工程の前段に返送する返送手段とを備え、
前記電解処理手段は、前記脱離液に少なくとも一部が浸漬された一対の電解用電極を備え、少なくともアノードを構成する電解用電極は、鉄材料を含むことを特徴とする下水処理施設。 - 前記アノードを構成する電解用電極は、通水可能な容器状の電極部と、当該電極部の内部に収容され、該電極部と導通可能とされる鉄材料とから構成されることを特徴とする請求項1の下水処理施設。
- 前記電極部のカソードを構成する他方の電解用電極と近接する部分は、不導体にて構成されることを特徴とする請求項2の下水処理施設。
- 前記脱離液は、前記アノードを構成する電解用電極から前記カソードを構成する電解用電極に向けて通水されることを特徴とする請求項2又は請求項3の下水処理施設。
- 前記電解処理手段にて処理された後の脱離液を膜分離処理することを特徴とする請求項1、請求項2、請求項3又は請求項4の下水処理施設。
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JP2006167577A JP5283831B2 (ja) | 2006-06-16 | 2006-06-16 | 下水処理施設及び下水処理方法 |
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JP2006167577A JP5283831B2 (ja) | 2006-06-16 | 2006-06-16 | 下水処理施設及び下水処理方法 |
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JP2007330919A true JP2007330919A (ja) | 2007-12-27 |
JP5283831B2 JP5283831B2 (ja) | 2013-09-04 |
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JP2006167577A Active JP5283831B2 (ja) | 2006-06-16 | 2006-06-16 | 下水処理施設及び下水処理方法 |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2010005491A (ja) * | 2008-06-24 | 2010-01-14 | Tokyo Metropolis | 電解式リン回収装置及びこれを用いた下水処理システム |
JP2016524037A (ja) * | 2013-05-13 | 2016-08-12 | ホガナス アクチボラグ (パブル) | カソード、電気化学セル及びその使用 |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110132629B (zh) | 2019-06-06 | 2020-03-10 | 浙江清华长三角研究院 | 一种利用支持向量机预测农村生活污水处理设施运行有效性的方法 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH10258286A (ja) * | 1997-03-18 | 1998-09-29 | Sanyo Electric Co Ltd | 汚水処理装置 |
JPH11207363A (ja) * | 1998-01-23 | 1999-08-03 | Matsushita Electric Works Ltd | 電解式脱リン装置 |
JP2006110482A (ja) * | 2004-10-15 | 2006-04-27 | Mitsubishi Heavy Ind Ltd | 液状有機性廃棄物の処理方法及び処理システム |
-
2006
- 2006-06-16 JP JP2006167577A patent/JP5283831B2/ja active Active
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH10258286A (ja) * | 1997-03-18 | 1998-09-29 | Sanyo Electric Co Ltd | 汚水処理装置 |
JPH11207363A (ja) * | 1998-01-23 | 1999-08-03 | Matsushita Electric Works Ltd | 電解式脱リン装置 |
JP2006110482A (ja) * | 2004-10-15 | 2006-04-27 | Mitsubishi Heavy Ind Ltd | 液状有機性廃棄物の処理方法及び処理システム |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2010005491A (ja) * | 2008-06-24 | 2010-01-14 | Tokyo Metropolis | 電解式リン回収装置及びこれを用いた下水処理システム |
JP2016524037A (ja) * | 2013-05-13 | 2016-08-12 | ホガナス アクチボラグ (パブル) | カソード、電気化学セル及びその使用 |
US10676378B2 (en) | 2013-05-13 | 2020-06-09 | Höganäs Ab (Publ) | Cathode, electrochemical cell and its use |
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JP5283831B2 (ja) | 2013-09-04 |
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