JP5770809B2 - 水溶性ガラス組成物及び水質改善水処理方法 - Google Patents
水溶性ガラス組成物及び水質改善水処理方法 Download PDFInfo
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims description 150
- 229910001868 water Inorganic materials 0.000 title claims description 149
- 239000000203 mixture Substances 0.000 title claims description 66
- 238000000034 method Methods 0.000 title claims description 25
- 239000000498 cooling water Substances 0.000 claims description 54
- 238000001816 cooling Methods 0.000 claims description 51
- 150000002500 ions Chemical class 0.000 claims description 43
- 239000011521 glass Substances 0.000 claims description 34
- 230000006872 improvement Effects 0.000 claims description 20
- 229910004298 SiO 2 Inorganic materials 0.000 claims description 17
- 229910018072 Al 2 O 3 Inorganic materials 0.000 claims description 14
- 238000010828 elution Methods 0.000 claims description 12
- 229910052802 copper Inorganic materials 0.000 claims description 8
- 229910052708 sodium Inorganic materials 0.000 claims description 5
- 239000010949 copper Substances 0.000 description 50
- 230000000694 effects Effects 0.000 description 42
- 241000195493 Cryptophyta Species 0.000 description 36
- 239000011734 sodium Substances 0.000 description 27
- 230000006378 damage Effects 0.000 description 26
- 230000007797 corrosion Effects 0.000 description 18
- 238000005260 corrosion Methods 0.000 description 18
- 239000011701 zinc Substances 0.000 description 17
- JPVYNHNXODAKFH-UHFFFAOYSA-N Cu2+ Chemical compound [Cu+2] JPVYNHNXODAKFH-UHFFFAOYSA-N 0.000 description 15
- 230000000844 anti-bacterial effect Effects 0.000 description 15
- 229910001431 copper ion Inorganic materials 0.000 description 15
- 239000000126 substance Substances 0.000 description 14
- QPLDLSVMHZLSFG-UHFFFAOYSA-N Copper oxide Chemical compound [Cu]=O QPLDLSVMHZLSFG-UHFFFAOYSA-N 0.000 description 12
- 230000000052 comparative effect Effects 0.000 description 12
- 230000009471 action Effects 0.000 description 11
- 230000002265 prevention Effects 0.000 description 11
- 238000004090 dissolution Methods 0.000 description 9
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 8
- 229910021645 metal ion Inorganic materials 0.000 description 8
- 239000011575 calcium Substances 0.000 description 7
- 230000008569 process Effects 0.000 description 7
- 229960004643 cupric oxide Drugs 0.000 description 6
- 230000002829 reductive effect Effects 0.000 description 6
- 238000006243 chemical reaction Methods 0.000 description 5
- 239000003795 chemical substances by application Substances 0.000 description 5
- 238000005536 corrosion prevention Methods 0.000 description 5
- 238000007654 immersion Methods 0.000 description 5
- 238000002347 injection Methods 0.000 description 5
- 239000007924 injection Substances 0.000 description 5
- 239000002994 raw material Substances 0.000 description 5
- 230000001954 sterilising effect Effects 0.000 description 5
- 230000002195 synergetic effect Effects 0.000 description 5
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 4
- 238000002474 experimental method Methods 0.000 description 4
- 239000000945 filler Substances 0.000 description 4
- 230000005764 inhibitory process Effects 0.000 description 4
- 229910052742 iron Inorganic materials 0.000 description 4
- 238000012545 processing Methods 0.000 description 4
- 239000004332 silver Substances 0.000 description 4
- 229910052709 silver Inorganic materials 0.000 description 4
- -1 silver ions Chemical class 0.000 description 4
- 238000004659 sterilization and disinfection Methods 0.000 description 4
- 238000004378 air conditioning Methods 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 3
- 239000012535 impurity Substances 0.000 description 3
- 239000003621 irrigation water Substances 0.000 description 3
- 238000002844 melting Methods 0.000 description 3
- 230000008018 melting Effects 0.000 description 3
- 229910001415 sodium ion Inorganic materials 0.000 description 3
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 3
- 238000013268 sustained release Methods 0.000 description 3
- 239000012730 sustained-release form Substances 0.000 description 3
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 2
- XUJNEKJLAYXESH-REOHCLBHSA-N L-Cysteine Chemical compound SC[C@H](N)C(O)=O XUJNEKJLAYXESH-REOHCLBHSA-N 0.000 description 2
- 229910018068 Li 2 O Inorganic materials 0.000 description 2
- 229910010413 TiO 2 Inorganic materials 0.000 description 2
- 229910052791 calcium Inorganic materials 0.000 description 2
- 229910000019 calcium carbonate Inorganic materials 0.000 description 2
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 description 2
- 239000000920 calcium hydroxide Substances 0.000 description 2
- 229910001861 calcium hydroxide Inorganic materials 0.000 description 2
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 230000002401 inhibitory effect Effects 0.000 description 2
- 230000003993 interaction Effects 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 239000000155 melt Substances 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 230000003449 preventive effect Effects 0.000 description 2
- 238000005070 sampling Methods 0.000 description 2
- 239000010865 sewage Substances 0.000 description 2
- NDVLTYZPCACLMA-UHFFFAOYSA-N silver oxide Chemical compound [O-2].[Ag+].[Ag+] NDVLTYZPCACLMA-UHFFFAOYSA-N 0.000 description 2
- 230000001629 suppression Effects 0.000 description 2
- 230000002459 sustained effect Effects 0.000 description 2
- 230000008685 targeting Effects 0.000 description 2
- 239000012085 test solution Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 239000002351 wastewater Substances 0.000 description 2
- 229920001817 Agar Polymers 0.000 description 1
- 241000894006 Bacteria Species 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 235000013878 L-cysteine Nutrition 0.000 description 1
- 239000004201 L-cysteine Substances 0.000 description 1
- 241000589248 Legionella Species 0.000 description 1
- 208000004023 Legionellosis Diseases 0.000 description 1
- 208000007764 Legionnaires' Disease Diseases 0.000 description 1
- 238000003326 Quality management system Methods 0.000 description 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- 229910021607 Silver chloride Inorganic materials 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- PTFCDOFLOPIGGS-UHFFFAOYSA-N Zinc dication Chemical compound [Zn+2] PTFCDOFLOPIGGS-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000004480 active ingredient Substances 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 239000008272 agar Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 239000003242 anti bacterial agent Substances 0.000 description 1
- 244000052616 bacterial pathogen Species 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- BERDEBHAJNAUOM-UHFFFAOYSA-N copper(I) oxide Inorganic materials [Cu]O[Cu] BERDEBHAJNAUOM-UHFFFAOYSA-N 0.000 description 1
- KRFJLUBVMFXRPN-UHFFFAOYSA-N cuprous oxide Chemical compound [O-2].[Cu+].[Cu+] KRFJLUBVMFXRPN-UHFFFAOYSA-N 0.000 description 1
- 229940112669 cuprous oxide Drugs 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 239000012153 distilled water Substances 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 230000001747 exhibiting effect Effects 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000003641 microbiacidal effect Effects 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000004745 nonwoven fabric Substances 0.000 description 1
- 230000029553 photosynthesis Effects 0.000 description 1
- 238000010672 photosynthesis Methods 0.000 description 1
- 235000019353 potassium silicate Nutrition 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- HKZLPVFGJNLROG-UHFFFAOYSA-M silver monochloride Chemical compound [Cl-].[Ag+] HKZLPVFGJNLROG-UHFFFAOYSA-M 0.000 description 1
- 229910001923 silver oxide Inorganic materials 0.000 description 1
- 230000002269 spontaneous effect Effects 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000002341 toxic gas Substances 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
- 238000004017 vitrification Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
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
- Y02W10/30—Wastewater or sewage treatment systems using renewable energies
- Y02W10/37—Wastewater or sewage treatment systems using renewable energies using solar energy
Landscapes
- Glass Compositions (AREA)
Description
SiO2、Na2O、Cu2O、Al2O3、ZnO、B2O3、CaO及びMgO酸化物原材料を、後記表1及び表2に記載する成分割合となるように秤量して均一に混合撹拌し、この混合物をガラス溶解炉内で1320℃の温度で約3時間加熱して溶融させ、その溶融物を鉄板上に流延して上方から同様の鉄板でプレスして板状に成形し、冷却して厚さ6〜7mmの板状ガラス(水溶性ガラス組成物)を得た。その後、当該各板状ガラスを約30〜70mm角にカットして各水溶性ガラス試料(実施例1〜13)とした。
実施例1〜13と同様の酸化物原材料を後記表3に記載する成分割合となるように秤量して均一に混合撹拌した以外は、実施例1〜13と同様にして、カットした板状の水溶性ガラス試料を調製し、この試料を用いて実施例1〜13と同様して水質改善水処理を行った。その処理結果を表3に示す。
Cu2O(酸化第一銅)に代えてCuO(酸化第二銅)を用いた以外は、実施例1〜13と同様にしてカットした水溶性ガラス試料を調製し、この試料を用いて実施例1〜13と同様して水質改善水処理を行った。その処理結果を表4に示す。
処理開始から30日後の冷却水採取を初回とし、その後の未溶解試料ガラスが存在している間の1カ月経過毎に冷却水採取を行い、それぞれ各イオン濃度を測定し、その測定結果の平均値をとった。なお、測定は衛生分析センター(古川熱学エンジニアリング株式会社)に依頼し、Cu+濃度及びZn2+濃度をフレーム原子吸光法、Na+濃度をフレーム光度法にてそれぞれ測定した。
処理開始からイオン濃度の各値がCu+濃度0.03〜0.1ppm、Zn2+濃度0.02〜0.3ppm及びNa+濃度75〜120ppmの濃度範囲を満足していた日数を採用した。
比較例においては、30日後においても前記濃度範囲を全て満たすことはなく、スライム、藻類及びスケールの除去、腐食防止、殺菌のいずれかの効果が得られず、障害が改善されなかったため、この時点で実験を終了した。したがって、実験終了までの水溶性ガラス試料の目減り量から溶解してしまう日数を算出し、この値を溶解日数とし、有効濃度日数の代わりとして採用した。
冷却塔冷却水に発生し易いレジオネラ属菌を対象とし、処理開始から30日後と60日後に、それぞれ冷却水を採取し、新版レジオネラ症防止指針に基づく濾過濃縮法にて分析した。分析は、検水500mlをメンブランフィルターで濾過したのち、当該フィルターを滅菌蒸留水5ml中に浸して試験管ミキサーで1分間洗浄して濃縮検液を得、当該濃縮検液を50℃で30分間加熱して100倍に濃縮し、その100μlをGVPACαの寒天培地(日研生物医学研究所)に塗布し、36±1℃にて最長7日間、乾燥を防いで培養し、灰白色湿潤集落で特有の淡い酸臭があるか否か、グラム陰性桿菌で発育にL−システインを要求するか否か、自発蛍光の有無によって判定した。
冷却水の水回りでのスケール、スライム、藻類が発生している状態から、水溶性ガラス試料を浸漬後、各障害の改善状況を目視にて観察し、次の4段階で評価した。
優・・・・浸漬後30〜50日で改善されて最も優れていた。
良・・・・浸漬後60〜90日で改善されて優れていた。
可・・・・浸漬後100〜120日で改善されて目的を達成していた。
不可・・・浸漬後120日時点で変化がないか、悪化していた。
Claims (7)
- モル%として、SiO2を56.0〜60.0%、Na2Oを38.0〜40.0%、Cu2Oを0.1%以上1.0%未満、ZnOを0.1%以上1.0%未満、B2O3を1.0〜3.0%、Al2O3を0〜1.0%、それぞれ含有してなる水溶性ガラス組成物。
- モル%として、SiO2を56.0〜60.0%、Na2Oを38.0〜40.0%、Cu2Oを0.1%以上1.0%未満、ZnOを0.1%以上1.0%未満、B2O3を1.0〜3.0%、CaOを0.05%以上1.0%未満、MgOを0.05%以上1.5%未満、Al2O3を0〜1.0%、それぞれ含有してなる水溶性ガラス組成物。
- B2O3が1.0%以上3.0%未満、Al2O3が0.1%以上1.0%未満である請求項1又は2記載の水溶性ガラス組成物。
- 被処理水中に請求項1乃至請求項3のいずれか一項に記載の水溶性ガラス組成物を浸漬し、このガラス組成物から前記水中にイオンを溶出させることを特徴とする水質改善水処理方法。
- 被処理水中に溶出したイオン濃度をCu+濃度0.03〜0.1ppm、Zn2+濃度0.02〜0. 3ppm、Na+濃度75〜120ppmとする請求項4記載の水質改善水処理方法。
- 水溶性ガラス組成物からのイオン溶出を少なくとも120日間にわたって継続する請求項4又は5記載の水質改善水処理方法。
- 被処理水が冷却塔冷却水である請求項4乃至請求項6のいずれか一項に記載の水質改善水処理方法。
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JP2022146713A (ja) * | 2021-03-22 | 2022-10-05 | 東洋ガラス株式会社 | 緩水溶性ガラス、緩水溶性ガラス製品、組成物及び水質改善方法 |
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Publication number | Priority date | Publication date | Assignee | Title |
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JPH01317133A (ja) * | 1988-06-15 | 1989-12-21 | Mitsubishi Rayon Eng Co Ltd | ガラス水処理剤 |
JP2596684B2 (ja) * | 1992-01-30 | 1997-04-02 | 興亜硝子株式会社 | 抗菌性及び抗齲蝕性複合ガラス |
JP2004203775A (ja) * | 2002-12-25 | 2004-07-22 | Toyo Glass Co Ltd | 魚類寄生虫駆除剤およびこれを防藻剤又は一般抗菌剤として使用する方法 |
CN102834001B (zh) * | 2010-04-02 | 2014-11-19 | 东亚合成株式会社 | 溶解性玻璃质抗菌剂以及水处理剂 |
JP5647467B2 (ja) * | 2010-09-01 | 2014-12-24 | 学校法人近畿大学 | 無機系抗菌剤及びその製造方法 |
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