A sustainable and environmentally friendly approach for wastewater treatment using natural flocculants: pH effect and optimization
سال انتشار: 1401
نوع سند: مقاله کنفرانسی
زبان: انگلیسی
مشاهده: 152
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شناسه ملی سند علمی:
CAUCONG02_074
تاریخ نمایه سازی: 19 آذر 1401
چکیده مقاله:
Coagulation and flocculation is one of the most important solid-liquid separation processesthat is used in wastewater treatment. In this study, performance of Pistacia terebinthus,as an eco-friendly coagulant for wastewater treatment was evaluated. To do this,different dosages of Pistacia terebinthus (۰.۵, ۱, ۱.۵, and ۲ g/L) was applied towastewater samples to remove chemical oxygen demand (COD) and turbidity.Additionally, the effect of various initial pH (۳, ۵, ۷, ۹, ۱۱) on the flucculantperformance and settling time was investigated. Moreover, zeta potential analysis wasconducted to find the main mechanism of treatment. The results showed that in theoptimal condition of NF dosage= ۲ g/L and pH=۱۱after ۶۰ minutes of settling time,maximum removal efficiencies of ۹۵% and ۹۸% was obtained for COD and turbidity,respectively. Moreover, it can be concluded that the main mechanism of the Pistaciaterebinthus as natural flocculant with pH adjustment is bridging combined with chargeneutralization.
کلیدواژه ها:
نویسندگان
Saba Abdolalian
Department of Civil and Environmental Engineering, Babol Noshirvani University of Technology, Babol, Iran
Bahman Nazari
Department of Chemical Engineering, Babol Noshirvani University of Technology, Babol, Iran
Mohsen Taghavijeloudar
Department of Civil and Environmental Engineering, Seoul National University, Seoul, Korea