JP7479238B2 - 純水製造装置及び純水製造方法 - Google Patents
純水製造装置及び純水製造方法 Download PDFInfo
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims description 129
- 238000004519 manufacturing process Methods 0.000 title claims description 33
- 238000000034 method Methods 0.000 title claims description 13
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 claims description 74
- 239000004202 carbamide Substances 0.000 claims description 74
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 69
- 239000002253 acid Substances 0.000 claims description 46
- 244000005700 microbiome Species 0.000 claims description 24
- 239000005416 organic matter Substances 0.000 claims description 20
- CUILPNURFADTPE-UHFFFAOYSA-N hypobromous acid Chemical compound BrO CUILPNURFADTPE-UHFFFAOYSA-N 0.000 claims description 13
- 238000001514 detection method Methods 0.000 claims description 7
- 230000001678 irradiating effect Effects 0.000 claims description 3
- 230000002596 correlated effect Effects 0.000 claims 1
- JHJLBTNAGRQEKS-UHFFFAOYSA-M sodium bromide Chemical compound [Na+].[Br-] JHJLBTNAGRQEKS-UHFFFAOYSA-M 0.000 description 16
- 239000003638 chemical reducing agent Substances 0.000 description 12
- 238000005342 ion exchange Methods 0.000 description 11
- 241000894006 Bacteria Species 0.000 description 9
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- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 8
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- SUKJFIGYRHOWBL-UHFFFAOYSA-N sodium hypochlorite Chemical compound [Na+].Cl[O-] SUKJFIGYRHOWBL-UHFFFAOYSA-N 0.000 description 8
- 239000000969 carrier Substances 0.000 description 7
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- 239000003153 chemical reaction reagent Substances 0.000 description 5
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- 108090000790 Enzymes Proteins 0.000 description 3
- 102000004190 Enzymes Human genes 0.000 description 3
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 description 3
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- GEHJYWRUCIMESM-UHFFFAOYSA-L sodium sulfite Chemical compound [Na+].[Na+].[O-]S([O-])=O GEHJYWRUCIMESM-UHFFFAOYSA-L 0.000 description 2
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- UJTTUOLQLCQZEA-UHFFFAOYSA-N 9h-fluoren-9-ylmethyl n-(4-hydroxybutyl)carbamate Chemical compound C1=CC=C2C(COC(=O)NCCCCO)C3=CC=CC=C3C2=C1 UJTTUOLQLCQZEA-UHFFFAOYSA-N 0.000 description 1
- 239000004471 Glycine Substances 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 1
- 229910021380 Manganese Chloride Inorganic materials 0.000 description 1
- GLFNIEUTAYBVOC-UHFFFAOYSA-L Manganese chloride Chemical compound Cl[Mn]Cl GLFNIEUTAYBVOC-UHFFFAOYSA-L 0.000 description 1
- 229910002651 NO3 Inorganic materials 0.000 description 1
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 description 1
- IOVCWXUNBOPUCH-UHFFFAOYSA-M Nitrite anion Chemical compound [O-]N=O IOVCWXUNBOPUCH-UHFFFAOYSA-M 0.000 description 1
- 229910021536 Zeolite Inorganic materials 0.000 description 1
- 238000002835 absorbance Methods 0.000 description 1
- 230000003213 activating effect Effects 0.000 description 1
- 125000000129 anionic group Chemical group 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000001580 bacterial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000010000 carbonizing Methods 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 125000002091 cationic group Chemical group 0.000 description 1
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- 238000002242 deionisation method Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
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- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
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- 239000003673 groundwater Substances 0.000 description 1
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- QWPPOHNGKGFGJK-UHFFFAOYSA-N hypochlorous acid Chemical compound ClO QWPPOHNGKGFGJK-UHFFFAOYSA-N 0.000 description 1
- GEOVEUCEIQCBKH-UHFFFAOYSA-N hypoiodous acid Chemical compound IO GEOVEUCEIQCBKH-UHFFFAOYSA-N 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000008235 industrial water Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 229940099607 manganese chloride Drugs 0.000 description 1
- 235000002867 manganese chloride Nutrition 0.000 description 1
- 239000011565 manganese chloride Substances 0.000 description 1
- 229910000403 monosodium phosphate Inorganic materials 0.000 description 1
- 235000019799 monosodium phosphate Nutrition 0.000 description 1
- 235000015097 nutrients Nutrition 0.000 description 1
- 150000007524 organic acids Chemical class 0.000 description 1
- 235000005985 organic acids Nutrition 0.000 description 1
- 125000001477 organic nitrogen group Chemical group 0.000 description 1
- 239000007800 oxidant agent Substances 0.000 description 1
- 238000006864 oxidative decomposition reaction Methods 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 229910052763 palladium Inorganic materials 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 238000006303 photolysis reaction Methods 0.000 description 1
- 230000015843 photosynthesis, light reaction Effects 0.000 description 1
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical group [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 239000004323 potassium nitrate Substances 0.000 description 1
- 235000010333 potassium nitrate Nutrition 0.000 description 1
- 230000035755 proliferation Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000003908 quality control method Methods 0.000 description 1
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- 230000001172 regenerating effect Effects 0.000 description 1
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- 150000003839 salts Chemical class 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- AJPJDKMHJJGVTQ-UHFFFAOYSA-M sodium dihydrogen phosphate Chemical compound [Na+].OP(O)([O-])=O AJPJDKMHJJGVTQ-UHFFFAOYSA-M 0.000 description 1
- 235000010265 sodium sulphite Nutrition 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
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- 238000003756 stirring Methods 0.000 description 1
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- 239000011573 trace mineral Substances 0.000 description 1
- 235000013619 trace mineral Nutrition 0.000 description 1
- 238000009281 ultraviolet germicidal irradiation Methods 0.000 description 1
- 239000010457 zeolite Substances 0.000 description 1
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- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
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- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/76—Treatment of water, waste water, or sewage by oxidation with halogens or compounds of halogens
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- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/02—Aerobic processes
- C02F3/10—Packings; Fillings; Grids
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- C02F3/30—Aerobic and anaerobic processes
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- C02F1/20—Treatment of water, waste water, or sewage by degassing, i.e. liberation of dissolved gases
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- C02F1/42—Treatment of water, waste water, or sewage by ion-exchange
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- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
- C02F1/441—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by reverse osmosis
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- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/76—Treatment of water, waste water, or sewage by oxidation with halogens or compounds of halogens
- C02F1/766—Treatment of water, waste water, or sewage by oxidation with halogens or compounds of halogens by means of halogens other than chlorine or of halogenated compounds containing halogen other than chlorine
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- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F2003/001—Biological treatment of water, waste water, or sewage using granular carriers or supports for the microorganisms
- C02F2003/003—Biological treatment of water, waste water, or sewage using granular carriers or supports for the microorganisms using activated carbon or the like
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- C02F2103/02—Non-contaminated water, e.g. for industrial water supply
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- C02F2201/32—Details relating to UV-irradiation devices
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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
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- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
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- Physical Water Treatments (AREA)
- Treatment Of Water By Oxidation Or Reduction (AREA)
- Biological Treatment Of Waste Water (AREA)
- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Description
以下、図面を参照して本発明の純水製造装置と純水製造方法の実施形態について説明する。図1は本発明の第1の実施形態に係る純水製造装置1Aの概略構成を示している。純水製造装置1(1次システム)は上流側の前処理システムと下流側のサブシステム(2次システム)とともに超純水製造装置を構成する。前処理システムで製造された原水(以下、被処理水という)は尿素を含む有機物を含有している。
純水に試薬尿素と生物処理に必要な微量元素とを添加し、尿素濃度100μg/Lの模擬原水を作成した。また、容積1.5Lの円筒カラムに嵩体積1.0Lの粒状活性炭(オルビーズQHG(オルガノ製))を充填して、固定床式の生物処理槽を準備した。生物処理槽に硝化脱窒汚泥を200mg/Lの割合で添加し、原水に浸漬させた。その後、原水を通水量SV12hr-1(通水流量÷活性炭充填量)で、下降流にて生物処理槽に通水し、96日間の連続通水試験を実施した。試験期間中、原水の水温は18~20℃、pHは7.3~7.5に維持した。逆洗は3日に1回の頻度で、1回当たり10分間実施した。具体的には、処理水を、線速度LV25m/h(通水流量÷円筒カラム断面積)で、上向流にて通水した。尿素濃度は、ORUREA(オルガノ製)で測定した。
12,12a~12c 生物活性炭塔(生物処理手段)
15 紫外線照射装置
16 イオン交換装置
18 尿素検出手段
20 次亜ハロゲン酸添加手段
21 還元剤添加手段
Claims (9)
- 有機物を含む被処理水に生物処理を行う生物処理手段と、
前記生物処理手段の下流に位置し、生物処理が行われた前記被処理水に次亜ハロゲン酸を添加する次亜ハロゲン酸添加手段と、
前記次亜ハロゲン酸添加手段の下流に位置し、前記次亜ハロゲン酸が添加された前記被処理水に紫外線を照射する紫外線照射装置と、
前記紫外線照射装置が設置された配管と、
前記配管に設けられ、前記次亜ハロゲン酸が添加される添加点と、を有し、
前記添加点と前記紫外線照射装置は前記配管のみで接続されている、純水製造装置。 - 前記生物処理手段は微生物が担持された生物活性炭を有する、請求項1に記載の純水製造装置。
- 前記生物処理手段は、微生物が担持された生物活性炭が充填された複数の活性炭塔を有し、前記複数の活性炭塔は並列に配置されている、請求項1に記載の純水製造装置。
- 前記次亜ハロゲン酸は次亜臭素酸である、請求項1から3のいずれか1項に記載の純水製造装置。
- 前記有機物は尿素を含み、
前記生物処理手段と前記次亜ハロゲン酸添加手段の間に被処理水の尿素濃度を測定する尿素検出手段を有し、前記次亜ハロゲン酸添加手段の次亜ハロゲン酸添加量は、前記尿素検出手段で測定された尿素濃度と正の相関関係にある、請求項1から4のいずれか1項に記載の純水製造装置。 - 前記紫外線照射装置の下流に位置する他の紫外線照射装置を有する、請求項1から5のいずれか1項に記載の純水製造装置。
- 前記紫外線照射装置の下流に位置する次亜ハロゲン酸除去手段を有する、請求項1から5のいずれか1項に記載の純水製造装置。
- 有機物を含む被処理水に生物処理を行い前記有機物の一部を除去することと、
前記生物処理が行われた前記被処理水に次亜ハロゲン酸を添加することと、
前記次亜ハロゲン酸が添加された前記被処理水に紫外線照射装置によって紫外線を照射すること、を有し、
前記次亜ハロゲン酸の添加点は前記紫外線照射装置が設置された配管に設けられ、前記添加点と前記紫外線照射装置は前記配管のみで接続されている純水製造方法。 - 前記被処理水は尿素を含む、請求項8に記載の純水製造方法。
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