Open AccessValorization of potato peel residues to produce a bioflocculant to be used in the treatment of liquid effluents
Author(s) -
Fatima Zohra Choumane,
Fatiha Zaoui,
Fatma Kandouci,
Bouhana Maachou,
Belkacem Benguella
Publication year - 2021
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/1204/1/012002
Subject(s) - flocculation , turbidity , coagulation , effluent , chemistry , wastewater , pulp and paper industry , sewage treatment , chloride , chromatography , food science , environmental engineering , environmental science , organic chemistry , biology , psychology , ecology , psychiatry , engineering
The present study aims primarily to investigate the flocculation capacity of a novel potato peel-based bioflocculant in wastewater treatment. The analysis of wastewater revealed high COD and BOD 5 contents that could respectively reach the values 529.08 mg O 2 /l and 317.03 mg O 2 /l. In addition, the effect of experimental parameters such as the pH, coagulant/flocculant dosage, and contact time, was studied using the coagulation-flocculation treatment technique. The experiments were carried out with a lab-scale jar-test apparatus where aluminum chloride (AlCl 3 ) was used as a coagulant agent. It should be noted that the optimal dose of AlCl 3 was equal to 0.6 g at 10 mn, with turbidity reduction of 99.01%. Moreover, the flocculation tests showed higher turbidity removal (98%), for a flocculant dosage of 0.2g. The results obtained in this study indicated that using the natural potato peel-based flocculant, in the presence of a coagulant, provides an effective and environmentally friendly coagulation option for wastewater treatment.