DEVELOPMENT OF NOVEL WATER TREATMENT PROCESSES USING MULTI-ELECTRODE SYSTEM

使用多电极系统开发新型水处理工艺

• 批准号: 11650556
• 负责人: SAKAKIBARA Yutaka
• 金额: $ 2.18万
• 依托单位: Gunma University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 1999
• 资助国家: 日本
• 起止时间: 1999 至 2000
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-11650556/
• 关键词: Multi-electrode system; novel water treatment process; heavy metal ion; nitrate; phosphorus compound; 電流; 電荷輸送; 電極反応; 水処理; 電気化学的処理; 電解; 直流

Three novel processes for the treatments of heavy metal (Cu^<2+>) ion, nitrate, and phosphorous compounds, respectively, were proposed and their performances were studied experimentally and theoretically.In the process for heavy metal ion removal, it was found that removal efficiency of a model metal ion (Cu^<2+>) was enhanced comparing with former electrolytic process, because electric current was effectively utilized for the metal reduction on the cathode surface (i.e. Cu^<2+> to Cu) in the multi-electrode system. This enhanced performance is attributable to smaller electric current density below limiting current density. Furthermore, it was shown that the multi-electrode system consisting of GAC also increased bio-electrochemical denitrification rate several times, in comparison with former BER studies.Moreover, the multi-electrode system was successfully applied to a novel phosphorous removal process, where phosphorus precipitation occurred with no addition of chemicals and was facilitated by a unique alkaline zone-formation in the multi-electrode system. This invention was applied as domestic, US and EU patents.

提出了三个用于重金属治疗（Cu^<2+>），硝酸盐和磷化合物的新型过程，并通过实验和理论上对其性能进行了研究，重金属离子去除过程。在重金属离子去除过程中，与以前的电源相比，对型号的电流（Cu^<2 <2）的取消效率（Cu^<2 <2）是基本的，因为cu^<2 <2 <2 <2 <2 <2 <2 <2 <2 <2在多电极系统中的阴极表面（即Cu^<2+> cu）上。这种增强的性能归因于较小的电流密度以下限制电流密度。此外，结果表明，与以前的BER研究相比，由GAC组成的多电极系统还几次增加了生物电化学的非化硝化率。此外，多电极系统被成功地应用于新型的磷酸化清除过程中，在没有化学物质的磷酸化量并不是由化学物质添加的情况下，并且由化学物质添加了独特的区域。这项发明是作为国内，美国和欧盟专利的。

项目成果

Y.Sakakibara, T.Nakayama, K.Ihara: "Denitrification and Oxygenation Process Equipped with a Multi-Electrode System"CD Rom of the 1_<st> World Water Congress of the International Water Association. L243. 4 (2000)

Y.Sakakibara、T.Nakayama、K.Ihara：“配备多电极系统的反硝化和氧化过程”国际水协会第一届世界水大会光盘。

M. Prosnansky, Y. Sakakibara: "High-Rate Denitrification in Biofilm-Electrode Reactor Combined with Microfiltration"Bioremediation of Inorganic Compounds, Leeson, Peyton, Means, and Magar (eds), Battle Press. 6(9). 201-207 (2001)

M. Prosnansky、Y. Sakakibara：“生物膜电极反应器中与微滤相结合的高速反硝化”无机化合物的生物修复，Leeson、Peyton、Means 和 Magar（编辑），Battle Press。

Y.Sakakibara, T.Nakayama: "A Novel Multi -Electrode System for Electrolytic and Biological Water Treatments : Electric Charge Transfer and Application to Denit rification"Water Research. Vol.35,No.2. 768-778 (2001)

Y.Sakakibara、T.Nakayama：“用于电解和生物水处理的新型多电极系统：电荷转移和脱硝应用”水研究。

Y.Sakakibara, T.Nakayama, K.Ihara: "Denitrification and Oxygenation Process Equipped with a Multi -Electrode System"CD Rom of the 1^<st> World Water Congress of the International Water Association. L243. 4 (2000)

Y.Sakakibara、T.Nakayama、K.Ihara：“配备多电极系统的反硝化和氧化过程”国际水协会第一届世界水大会光盘。

M.Prosnansky, Y.Sakakibara: "High-Rate Denitrification in Biofilm-Electrode Reactor Combined with Microfiltration"6_<th> In Situ and On-Site Bioremediation International Symposium(accepted). (2001)

M.Prosnansky、Y.Sakakibara：“生物膜电极反应器与微滤相结合的高速反硝化”第六届原位和现场生物修复国际研讨会（已接受）。