摘要
为了研究满足压载水排放标准的处理系统,建立了可以实现单独控制的以钛基氧化锡钌(Ti/SnO2-RuO2)为阳极材料的电催化系统和紫外辐射复合压载水处理系统。以杜氏盐藻、青岛大扁藻、锥状克里斯普藻和四爿藻为目标处理微生物,对该系统进行微藻灭活实验结果表明,Ti/SnO2-RuO2阳极电催化-UV复合系统克服了单独电催化系统高能耗、单独紫外辐射系统紫外灯衰减迅速的缺点,在紫外辐射出度45μW/cm2、电流密度130 m A/cm2、HRT为1.0 s的条件下,处理出水4 h后活藻数量可以达到国际海事组织(IMO)对压载水中10~50μm微生物的灭活要求。总剩余氧化物(TRO)含量会随时间推移而有衰减,且没有出现细胞光复活和修复现象,说明该复合系统具有理想的持续灭活作用。
To explore the treatment system that enables the quality of ballast water to meets the discharge standard,the electro-catalysis/UV combined ballast water treatment system with Ti/SnO2/RuO2 anode was established,in which electro-catalysis and UV could be controlled independently.Dunaliella salina,platymonas helgolandica,scrippsiella trochoidea and tetraselmis were target microalgae for study the inactivation of microalgae.The results showed that,the Ti/SnO2-RuO2/UV anode electro-catalysis/UV composite system overcomed the disadvantages of high energy consumption and rapid attenuation of ultraviolet lamp in the individual system.Under the condition of the 45μW/cm2 UV irradiance,130 m A/cm2 current density and 1.0 s hydraulic retention time,the viable microalgae in effluent could meet the microbial inactivation standards of IMO for microorganisms in ballast water of 10~50μm after 4 h treatment.TRO content decayed with time,and there was no resurrection or restoration of microalgae,indicating that the composite system had an ideal continuous inactivation effect.
作者
王玺雯
李之鹏
尤宏
苏婷
徐仲
陈其伟
WANG Xiwen;LI Zhipeng;YOU Hong;SU Ting;XU Zhong;CHEN Qiwei(School of Marine Science and Technology,Harbin Institute of Technology,Weihai 264200,China;State Key Laboratory of Urban Water Resource and Environment,School of Environmental,Harbin Institute of Technology,Harbin 150090,China;PAN-CHINA Construction Group Co.Ltd.,Hunan Branch,Changsha 410000,China)
出处
《水处理技术》
CAS
CSCD
北大核心
2020年第3期105-109,共5页
Technology of Water Treatment
基金
国家自然基金资助项目(51408158)
山东省自然科学基金(ZR2017MEE020).
