Title:
Remediation of Pulp and Paper Mill Effluent and Bio-diesel Production Using Mixed Microalgal Cultures
Author(s):
Chandra, R., Ghosh, U.K.
Document(s):
Paper
Poster
Abstract:
This work was undertaken to evaluate the phyco-remediation potential of microalga Chlorella minutissima (C. minutissima), Scenedesmus abundans (S. abundans) and their mixture (MMC). All the cultures were cultivated on 25, 50, 75 and 100% secondary treated pulp and paper mill effluent (PPME) in batch mode. Maximum biomass and lipid yield of 0.67 ± 0.03 g/Land 73.7 ± 0.002 mg/L was achieved by MMC grown on 75% PPME in 15 days. C. minutissima and S. abundans achieved biomass yield of 0.55 ± 0.03 and 0.48 ± 0.02 g/L, respectively in same conditions. MMC achieved increased biomass growth of 0.81 ± 0.05 g/L at light and dark cycles of 18:6 h, light intensity of 10000 lux and 27 ± 1 °C temperature when cultivated on 75% PPME having 10 g/L of Glucose. MMC removed about 73% COD, 81% BOD, 85% TDS, 53% phenols and 48% color content were removed in 15 days cultivation. Gas chromatography–mass spectrometry (GC-MS) analysis of fatty acid methyl ester (FAMEs) of MMC shown the presence of various fatty acids as myristic acid (C14:0), palmitic acid (C16:0), palmitoleic acid (C16:1), margaric acid (C17:0), stearic acid (C18:0), oleic acid (C18:1), linoleic acid (C18:2), linolenic acid (C18:3), and arachidic acid (C20:0) by 2.18%, 27.12%, 1.17%, 4.31%, 18.31%, 19.43%, 4.31%, 20.38%, and 0.76%, respectively. These outcomes suggest that the mixture of microalgae can offer a simple and effective remediation of PPME as well as feedstock for clean energy production.
Keywords:
biomass, microalgae, PPME, BOD, COD, photoperiod, fatty acid methyl esters
Topic:
Biomass Resources
Subtopic:
Algae production systems
Event:
27th European Biomass Conference and Exhibition
Session:
1DV.1.24
Pages:
261 - 267
ISBN:
978-88-89407-19-6
Paper DOI:
10.5071/27thEUBCE2019-1DV.1.24
Price:
FREE
