TY - JOUR
T1 - Removal of phosphorus from aqueous solution by Posidonia oceanica fibers using continuous stirring tank reactor
AU - Wahab, Mohamed Ali
AU - Hassine, Rafik Ben
AU - Jellali, Salah
N1 - Funding Information:
Financial support of this work by the Tunisian Ministry of Higher Education, Scientific Research and Technology for financial support is gratefully acknowledged.
PY - 2011/5/15
Y1 - 2011/5/15
N2 - The present study aims to develop a new potentially low-cost, sustainable treatment approach to soluble inorganic phosphorus removal from synthetic solutions and secondary wastewater effluents in which a plant waste (Posidonia oceanica fiber: POF) is used for further agronomic benefit. Dynamic flow tests using a continuous stirred tank reactor (CSTR) were carried out to study the effect of initial concentration of phosphorus, amount of adsorbent, feeding flow rate and anions competition. The experimental results showed that the removal efficiency of phosphorus from synthetic solutions is about 80% for 10gL-1 of POF. In addition, the variation of the initial concentration of phosphorus from 8 to 50mgL-1 increased the adsorption capacity from 0.99 to 3.03mgg-1. The use of secondary treated wastewater showed the presence of competition phenomenon between phosphorus and sulphate which could be overcoming with increasing the sorptive surface area and providing more adsorption sites when increasing the adsorbent dosage of POF. Compared with columns studies, this novel CSTR system showed more advantages for the removal of soluble phosphorus as a tertiary treatment of urban secondary effluents with more adsorption efficiency and capacity, in addition to the prospect use of saturated POF with nutriment as fertilizer and compost.
AB - The present study aims to develop a new potentially low-cost, sustainable treatment approach to soluble inorganic phosphorus removal from synthetic solutions and secondary wastewater effluents in which a plant waste (Posidonia oceanica fiber: POF) is used for further agronomic benefit. Dynamic flow tests using a continuous stirred tank reactor (CSTR) were carried out to study the effect of initial concentration of phosphorus, amount of adsorbent, feeding flow rate and anions competition. The experimental results showed that the removal efficiency of phosphorus from synthetic solutions is about 80% for 10gL-1 of POF. In addition, the variation of the initial concentration of phosphorus from 8 to 50mgL-1 increased the adsorption capacity from 0.99 to 3.03mgg-1. The use of secondary treated wastewater showed the presence of competition phenomenon between phosphorus and sulphate which could be overcoming with increasing the sorptive surface area and providing more adsorption sites when increasing the adsorbent dosage of POF. Compared with columns studies, this novel CSTR system showed more advantages for the removal of soluble phosphorus as a tertiary treatment of urban secondary effluents with more adsorption efficiency and capacity, in addition to the prospect use of saturated POF with nutriment as fertilizer and compost.
KW - Adsorption
KW - CSTR
KW - Phosphorus removal
KW - Posidonia oceanica fibers (POF)
KW - Tertiary treatment
UR - http://www.scopus.com/inward/record.url?scp=79953789087&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=79953789087&partnerID=8YFLogxK
U2 - 10.1016/j.jhazmat.2011.02.079
DO - 10.1016/j.jhazmat.2011.02.079
M3 - Article
C2 - 21414719
AN - SCOPUS:79953789087
SN - 0304-3894
VL - 189
SP - 577
EP - 585
JO - Journal of Hazardous Materials
JF - Journal of Hazardous Materials
IS - 1-2
ER -