Development of Bioflocculant from Chicken's Eggshell Membrane to Harvest Chlorella vulgaris

International Conference on Sustainable Energy and Green Technology 2018

能源学;生态环境科学

Suparmaniam, U.^1 ; Lam, M.K.^1^2 ; Uemura, Y.^1^2 ; Shuit, S.H.^3

Chemical Engineering Department, Universiti Teknologi PETRONAS, Seri Iskandar, Perak

32610, Malaysia^1

Centre for Biofuel and Biochemical Research, Institute of Self-Sustainable Building, Universiti Teknologi PETRONAS, Seri Iskandar, Perak

32610, Malaysia^2

Department of Chemical Engineering, Lee Kong Chian Faculty of Engineering and Science, Universiti Tunku Abdul Rahman, Selangor

43000, Malaysia^3

关键词: Bioflocculants;    Chlorella vulgaris;    Eggshell membranes;    Flocculant dosages;    Flocculating agents;    Flocculation efficiency;    Full-scale applications;    Potential technologies;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/268/1/012121/pdf
DOI  :  10.1088/1755-1315/268/1/012121

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

As microalgae biomass is considered as the most assuring source of biodiesel, flocculation has become a potential technology that could be able to alleviate microalgae dewatering cost which is the cornerstone hindrance of their full-scale application. However, large scale harvesting of microalgae biomass using commercial flocculating agents is obstructed by economic and environmental drawbacks upon downstream discharge. Thus, in the present work, a novel introduction of natural flocculant extracted from waste biomass, which is, chicken's eggshell membrane was made to harvest Chlorella vulgaris. Flocculation tests were carried out to test the effectiveness of the natural flocculant to recover microalgae biomass. Chicken's eggshell membrane was proven to be one of the effective bioflocculant as it achieved above 60 % of flocculation efficiency after 1 hour of sedimentation with optimum flocculation parameters of pH 11.8 with 80 mg/L of flocculant dosage at 40 °C.