SCImago Journal & Country Rank

Ranking and Indexing

Rank:
Index Copernicus Value (2010): 5.45
CNCSIS B+ (code 820) since 2007

International Databases:
SCOPUS since 2009
EBSCO Academic Search Complete since 2008
Index Copernicus Journals Master List since 2009
Directory of Open Access Journals (DOAJ) since 2008
ProQuest
Genamics JournalSeek since 18/2008

International Catalogues:
Oxford University's Library since 2003

Journal Info

Title: Studia Universitatis Vasile Goldis, Seria Stiintele Vietii (Life Sciences Series)
Abbreviated title: Studia Univ. VG, SSV
Publisher: "Vasile Goldis" University Press
Owner: Western University "Vasile Goldis" Arad, Romania
ISSN: 1584-2363
e-ISSN: 1842-7863
ISSN-L: 1584-2363

Who's Online

We have 26 guests online

Index Databases

Extraction, characterization and application of a bioflocculant produced from a mixed culture of two bacteria strains isolated from algoa bay, South Africa Print E-mail
Written by Ugbenyen A., Simonis J., Vine N., Basson A., Okoh A.   
Read full article
Article Title: Extraction, characterization and application of a bioflocculant produced from a mixed culture of two bacteria strains isolated from algoa bay, South Africa
Authors: Ugbenyen A., Simonis J., Vine N., Basson A., Okoh A.
Affiliation: Department of Hydrology, University of Zululand, kwadlangezwa, KZN, South Africa.
Department of Zoology and Entomology, University of Fort Hare, Private Bag X1314, Alice 5700, South Africa.
Department of Biochemistry and Microbiology, University of Zululand, kwadlangezwa, KZN, South Africa.
Applied and Environmental Microbiology Research Group (AEMREG), Department of Biochemistry and Microbiology, University of Fort Hare, Private Bag X1314, Alice 5700, South Africa.
Abstract: Two bioflocculant-producing marine bacteria isolated from the sediment samples of Algoa Bay in the Eastern Cape Province of South Africa identified as Cobetia sp. OAUIFE and Bacillus sp. Gilbert (accession number JF799092, and HQ537128 respectively) were used in a mixed culture to produce a bioflocculant of high yield and enhanced flocculating activity. The characteristics of the bioflocculant produced by the consortium of the two strains showed an optimum flocculation (89.8 %) of kaolin suspension when the dosage concentration was 0.2 mg/ml, under neutral ph, and Ca 2+ as a coagulant aid. The FTIR analysis of the bioflocculant indicated the presence of hydroxyl and carbonyl functional groups. Scanning electron microscopy (SEM) image of the bioflocculant revealed crystal linear spongy-like structure. The produced bioflocculant was highly efficient in removing turbidity and reducing chemical oxygen demand (COD) from brewery wastewater, diary wastewater and river water. The bioflocculant from the consortium showed a relatively higher flocculating activity compared with traditional flocculants such as alum and polyacrylamide. This boflocculant is relatively inert, eco-friendly and save for use and could serve as an important alternative to the hazardous inorganic and synthetic organic flocculants that are currently popularly used in water/ wastewater treatment and other downstream processes.
Keywords: bioflocculant, consortium, characteristic, efficient, wastewater.
References:
*Correspondence: Anthony Ugbenyen, Department of Hydrology, University of Zululand, kwadlangezwa, KZN, South Africa, Tel.: +27833980306 (mobile), email: This e-mail address is being protected from spambots. You need JavaScript enabled to view it