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Titlu: Comparative study of As (III) removal efficiency from water by electrocoagulation and conventional coagulation [articol]
Autori: Ihoș, Monica
Negrea, Adina
Lupa, Lavinia Afrodita
Ciopec, Elvira-Mihaela
Negrea, Petru
Subiecte: Arsenic removal
Conventional coagulation
Electrocoagulation
Water treatment
Data publicării: 2005
Editura: Timişoara: Editura Politehnica
Citare: Ihoș, Monica. Comparative study of As (III) removal efficiency from water by electrocoagulation and conventional coagulation. Timişoara: Editura Politehnica, 2005
Serie/Nr. raport: Seria chimie şi ingineria mediului, Tom 50(64), fasc. 1-2 (2005)
Abstract: The purpose of this paper was As (III) removal from simulated water by electrocoagulation (EC). The working conditions were: pH = 7, As (III) concentration 100 μg/L, and 0.01 M NaCl as supporting electrolyte. The sacrificial anode was made of aluminium and applied current densities were 25, 50 and 150 A/m2 at various electrolysis times. The results of EC were compared with those obtained by conventional coagulation (CC). The coagulation reagent was AlK(SO4)2.12H2O at the same concentration of Al3+ in solution as in EC experiments and working conditions: solutions of 100 μg/L As (III) and pH = 7. By comparison, As (III) was practically removed from solutin by EC, while arsenic residual concentration was 63.08 mg/L for 604 mg/L of alum by CC.
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