Screening and optimising metal salt concentration for marine microalgae harvesting by flocculation

Biodiesel is one of the most renewable fuels that are non-toxic and biodegradable.Demand of biodiesel is constantly increasing as the reservoir of fossil fuel are depleting.The microalgae biomass with high oil content is significant as a sustainable resource for biodiesel production. Production of b...

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Main Author:	Nur Anis, Saarani
Format:	Undergraduates Project Papers
Language:	English
Published:	2012
Subjects:	TP Chemical technology
Online Access:	http://umpir.ump.edu.my/id/eprint/3643/ http://umpir.ump.edu.my/id/eprint/3643/ http://umpir.ump.edu.my/id/eprint/3643/1/CD6374_NUR_ANIS_SAARANI.pdf

id	ump-3643
recordtype	eprints
spelling	ump-36432015-03-03T08:02:21Z http://umpir.ump.edu.my/id/eprint/3643/ Screening and optimising metal salt concentration for marine microalgae harvesting by flocculation Nur Anis, Saarani TP Chemical technology Biodiesel is one of the most renewable fuels that are non-toxic and biodegradable.Demand of biodiesel is constantly increasing as the reservoir of fossil fuel are depleting.The microalgae biomass with high oil content is significant as a sustainable resource for biodiesel production. Production of biodiesel using microalgae biomass appears to be a feasible alternative because there is no conflict with food supply compared with the first generation biofuels, such as oil crops and animal fat. This report deals with the screening and optimisation of metal salts for harvesting marine microalgae by flocculation. The metal salts studies are ferric chloride, aluminium sulphate and ferric sulphate.Wild Nannochloropsis strains of microalgae were cultivated aseptically in sea water for 7 days, after that the microalgae was harvested by using flocculation step with different concentration of metal salt. In order to monitor the efficiency of the metal salt,the turbidity region of microalgae in glass cylinder before and after flocculation was observed. Besides that cell dry weight and FAME (Fatty Acid Methyl Ester) produced was also compared for three flocculation agent used.The most efficient metal saltwash then further optimized for its best performed concentration and pH.Chloride salts (FeCl3) was found to be more efficient in comparison with sulfate salts (Al2 (SO4)3 and Fe2(SO4)3)in harvesting microalgae. FeCl3 gives the highest flocculation efficiency, cell dry weight and FAME production whichare99.3%,0.0791g, 44.3% at 1.0 M concentration of FeCl respectively.Ferric Chloride Was further optimized, where the optimum pH and concentration of FeCl3 are 7.5and 0.9M,with flocculation efficiency of 89.3%, cell dry weight of 3.5g and FAME production 43.3%.In conclusion 0.9 M ferric chloride salt at pH 7.5 is optimum in harvesting microalgae by flocculation. 2012-02 Undergraduates Project Papers NonPeerReviewed application/pdf en http://umpir.ump.edu.my/id/eprint/3643/1/CD6374_NUR_ANIS_SAARANI.pdf Nur Anis, Saarani (2012) Screening and optimising metal salt concentration for marine microalgae harvesting by flocculation. Faculty of Chemical and Natural Resources Engineering, Universiti Malaysia Pahang. http://iportal.ump.edu.my/lib/item?id=chamo:66859&theme=UMP2
repository_type	Digital Repository
institution_category	Local University
institution	Universiti Malaysia Pahang
building	UMP Institutional Repository
collection	Online Access
language	English
topic	TP Chemical technology
spellingShingle	TP Chemical technology Nur Anis, Saarani Screening and optimising metal salt concentration for marine microalgae harvesting by flocculation
description	Biodiesel is one of the most renewable fuels that are non-toxic and biodegradable.Demand of biodiesel is constantly increasing as the reservoir of fossil fuel are depleting.The microalgae biomass with high oil content is significant as a sustainable resource for biodiesel production. Production of biodiesel using microalgae biomass appears to be a feasible alternative because there is no conflict with food supply compared with the first generation biofuels, such as oil crops and animal fat. This report deals with the screening and optimisation of metal salts for harvesting marine microalgae by flocculation. The metal salts studies are ferric chloride, aluminium sulphate and ferric sulphate.Wild Nannochloropsis strains of microalgae were cultivated aseptically in sea water for 7 days, after that the microalgae was harvested by using flocculation step with different concentration of metal salt. In order to monitor the efficiency of the metal salt,the turbidity region of microalgae in glass cylinder before and after flocculation was observed. Besides that cell dry weight and FAME (Fatty Acid Methyl Ester) produced was also compared for three flocculation agent used.The most efficient metal saltwash then further optimized for its best performed concentration and pH.Chloride salts (FeCl3) was found to be more efficient in comparison with sulfate salts (Al2 (SO4)3 and Fe2(SO4)3)in harvesting microalgae. FeCl3 gives the highest flocculation efficiency, cell dry weight and FAME production whichare99.3%,0.0791g, 44.3% at 1.0 M concentration of FeCl respectively.Ferric Chloride Was further optimized, where the optimum pH and concentration of FeCl3 are 7.5and 0.9M,with flocculation efficiency of 89.3%, cell dry weight of 3.5g and FAME production 43.3%.In conclusion 0.9 M ferric chloride salt at pH 7.5 is optimum in harvesting microalgae by flocculation.
format	Undergraduates Project Papers
author	Nur Anis, Saarani
author_facet	Nur Anis, Saarani
author_sort	Nur Anis, Saarani
title	Screening and optimising metal salt concentration for marine microalgae harvesting by flocculation
title_short	Screening and optimising metal salt concentration for marine microalgae harvesting by flocculation
title_full	Screening and optimising metal salt concentration for marine microalgae harvesting by flocculation
title_fullStr	Screening and optimising metal salt concentration for marine microalgae harvesting by flocculation
title_full_unstemmed	Screening and optimising metal salt concentration for marine microalgae harvesting by flocculation
title_sort	screening and optimising metal salt concentration for marine microalgae harvesting by flocculation
publishDate	2012
url	http://umpir.ump.edu.my/id/eprint/3643/ http://umpir.ump.edu.my/id/eprint/3643/ http://umpir.ump.edu.my/id/eprint/3643/1/CD6374_NUR_ANIS_SAARANI.pdf
first_indexed	2023-09-18T21:58:03Z
last_indexed	2023-09-18T21:58:03Z
_version_	1777414211439165440

Screening and optimising metal salt concentration for marine microalgae harvesting by flocculation

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