Enhanced coagulation for improving coagulation performance and reducing residual aluminum combining polyaluminum chloride with diatomite.
作者： Wenchao Hu , Chunde Wu
DOI: 10.1007/S11356-015-5282-0
关键词:
摘要: The feasibility of using enhanced coagulation, which combined polyaluminum chloride (PAC) with diatomite for improving coagulation performance and reducing the residual aluminum (Al), was discussed. effects PAC dosage on Al were mainly investigated. Results demonstrated that removal efficiencies turbidity, dissolved organic carbon (DOC), UV254 significantly improved by compared alone. Meaningfully, five forms (total (TAl), total (TDAl), (DOAl), monomeric (DMAl), (DOMAl)) all had different degrees reduction in presence achieved lowest concentrations (0.185, 0.06, 0.053, 0.014, 0 mg L(-1), respectively) at a dose 15 L(-1) 40 L(-1). In addition, when used as coagulant, majority existed form (about 31.14-70.16%), content DOMAl small DMAl.
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