TY - JOUR
T1 - A pilot-plant study of the adsorptive micellar flocculation process
T2 - Optimum design and operation
AU - Sun, H.
AU - Hankins, N. P.
AU - Azzopardi, B. J.
AU - Hilal, N.
AU - Almeida, C. A.P.
N1 - Funding Information:
B.J. Azzopardi, N.P. Hankins, Removal and recycle of pollutants from water streams by adsorptive micellar flocculation, Final Report for EPSRC Grant No.: GR/R44393/01, EPSRC, Swindon, UK, 2005.
Funding Information:
The authors wish to acknowledge the Engineering and Physical Sciences Research Council (EPRSC) in the UK for funding the current work through grant number GR/R44393/01 (2001–2004), Dr F.I. Talens-Alesson for helping to design the experimental rig, and M. Bryce for technical support.
PY - 2008/9/1
Y1 - 2008/9/1
N2 - A pilot-plant scale study of the adsorptive micellar flocculation (AMF) process is presented for the first time, and builds on the solid foundation provided by previous fundamental laboratory studies. A number of experimental tests were conducted to validate the feasibility of using an AMF pilot rig to remove phenol from aqueous effluent streams. Several key factors, including flocculation time, floc settling time, optimum air flow-rate for agitation, and flocculant dosage, were determined. Residual concentrations in treated water indicated a surfactant removal efficiency of 95-98%, and pollutant removal reached 78% in two stages of process operation. A strategy for the separate recycling of surfactant, flocculant and pollutant has already been developed. The present study has thus made further progress in developing, testing, validating and optimising the operating conditions of a pilot-scale process. As such, it has demonstrated the feasibility of scaling up from the bench-scale to a commercial, continuously operated unit.
AB - A pilot-plant scale study of the adsorptive micellar flocculation (AMF) process is presented for the first time, and builds on the solid foundation provided by previous fundamental laboratory studies. A number of experimental tests were conducted to validate the feasibility of using an AMF pilot rig to remove phenol from aqueous effluent streams. Several key factors, including flocculation time, floc settling time, optimum air flow-rate for agitation, and flocculant dosage, were determined. Residual concentrations in treated water indicated a surfactant removal efficiency of 95-98%, and pollutant removal reached 78% in two stages of process operation. A strategy for the separate recycling of surfactant, flocculant and pollutant has already been developed. The present study has thus made further progress in developing, testing, validating and optimising the operating conditions of a pilot-scale process. As such, it has demonstrated the feasibility of scaling up from the bench-scale to a commercial, continuously operated unit.
KW - Adsorptive Micellar Flocculation (AMF)
KW - Aqueous effluent treatment
KW - Organic acids/bases
KW - Removal, recycle, reuse
KW - Surfactant-based separations
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U2 - 10.1016/j.seppur.2007.08.013
DO - 10.1016/j.seppur.2007.08.013
M3 - Article
AN - SCOPUS:50049136456
SN - 1383-5866
VL - 62
SP - 273
EP - 280
JO - Separation and Purification Technology
JF - Separation and Purification Technology
IS - 2
ER -