Effect of surfactant-coated iron oxide nanoparticles on the effluent water quality from a simulated sequencing batch reactor treating domestic wastewater

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• 作者：Sangchul  ; Hwang^a ;   ; ^{sangchul.hwang@upr.edu} ; Diana  ; Martinez^a ; Priscilla  ; Perez^b ; Carlos  ; Rinaldi^c
• 关键词：Effluent quality ; Engineered nanoparticles ; Sequencing batch reactor ; Wastewater
• 刊名：Environmental Pollution
• 出版年：2011
• 出版时间：December 2011
• 年：2011
• 卷：159
• 期：12
• 页码：3411-3415
• 全文大小：481 K

文摘

This study was conducted to evaluate the effect of commercially available engineered iron oxide nanoparticles coated with a surfactant (ENP_Fe-surf) on effluent water quality from a lab-scale sequencing batch reactor as a model secondary biological wastewater treatment. Results showed that ?.7 % of ENP_Fe-surf applied were present in the effluent stream. The stable presence of ENP_Fe-surf was confirmed by analyzing the mean particle diameter and iron concentration in the effluent. Consequently, aqueous ENP_Fe-surf deteriorated the effluent water quality at a statistically significant level (p?<?0.05) with respect to soluble chemical oxygen demand, turbidity, and apparent color. This implied that ENP_Fe-surf would be introduced into environmental receptors through the treated effluent and could potentially impact them.