BIOREMEDIATION OF TEXTILE INDUSTRIES EFFLUENTS USING SELECTED BACTERIAL SPECIES IN KANO, NIGERIA

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dc.contributor.authorGALADIMA, Adamu Dagona
dc.date.accessioned2014-02-17T09:30:25Z
dc.date.available2014-02-17T09:30:25Z
dc.date.issued2012-11
dc.descriptionBEING A THESIS SUBMITTED TO SCHOOL OF POSTGRADUATE STUDIES, IN PARTIAL FULFILMENT OF THE REQUIREMENTS FOR THE AWARD OF MASTER OF SCIENCE IN MICROBIOLOGY DEPARTMENT OF MICROBIOLOGY, FACULTY OF SCIENCE AHMADU BELLO UNIVERSITY, ZARIA, NIGERIA NOVEMBER, 2012en_US
dc.description.abstractRelease of untreated textile effluents, especially into water bodies makes the environment unhealthy, and thereby affecting entire life of humans, plants and other aquatic animals. This eventually affects the quality of water and limits its utilization. This study was carried out to determine the bioremediation potentials of bacteria species isolated from textile effluents of two industrial sites in Kano, Nigeria. Physicochemical characterization of textile effluents collected from Sharada and Chalawa industrial estates was carried out. The results showed high rates of contaminants and heavy metals. Temperature of discharge ranged from 35°C to 37°C and pH of the effluents was slightly above neutral level but within the permissible limits and ranged from 7.15 to 7.2. Using morphological and biochemical characteristics, fifteen (15) bacterial isolates were identified from the effluents sample and out of these, nine (9) of the isolates were selected for further studies based on their ability to degrade textile effluents and grow on minimum basal medium efficiently and rapidly. The biodegradation and decolourisations ability of these isolates were carried for ten days and the results were expressed in percentages with Bacillus subtilis having (99.60 %), Pseudomonas aeruginosa (99.60 %), Pseudomonas flourescens (96.00%), Bacillus brevis (95.60 %,), Alcaligenes faecalis (95.00%), Pseudomonas putida (92.00%) Bacillus licheniformis (91.60%), Aeromonas hydrophila (90.20%) and Bacillus megaterium (89.00%) Three microbial consortia were therefore developed and tested for their effectiveness in the bioremediation: Consortia 1 comprised of Pseudomonas aeruginosa, P. putida,and Bacillus subtilis and was able to degrade 99.70% of textile effluent within ten days, consortia 2 comprised of Pseudomonas aeruginosa, P. putida, Bacillus subtilis and P. fluorescence degraded by 96% and consortia 3 comprised of Pseudomonas aeruginosa, P. putida, Bacillus subtilis, Pseudomonas fluorescence and Alcaligenes faecalis degraded by 92%. Reduction efficiencies of different contaminants were evaluated and compared. Results indicated effectiveness of the investigated species for removal of the target contaminants ranged from 48% to 71% while, removal of heavy metal ranged from 50% to 99% was established. Analysis of variance of the results revealed that, there was statistically significant differences (p ≤ 0.05) in pH and DO after bioremediation. while there was no statistical significant difference in the reduction efficacy of BOD , COD, TSS, TDS, EC, however, adsorption of heavy metals (Cr, Cd, Cu, Fe, Mn, Ni, Pb, and Zn) showed significant difference (p ≤ 0.05), between individual organisms and the consortia after bioremediation . The selected bacterial species represent a promising tool for application in bioremediation of textile industrial effluents and the biodegradation potential observed would increase the applicability of these microorganisms for treatment of textile effluents before disposal to appropriate channel.en_US
dc.identifier.urihttp://hdl.handle.net/123456789/1651
dc.language.isoenen_US
dc.subjectBIOREMEDIATION,en_US
dc.subjectTEXTILE,en_US
dc.subjectINDUSTRIES,en_US
dc.subjectEFFLUENTS,en_US
dc.subjectUSING,en_US
dc.subjectSELECTED,en_US
dc.subjectBACTERIAL,en_US
dc.subjectSPECIES,en_US
dc.subjectKANO,en_US
dc.subjectNIGERIAen_US
dc.titleBIOREMEDIATION OF TEXTILE INDUSTRIES EFFLUENTS USING SELECTED BACTERIAL SPECIES IN KANO, NIGERIAen_US
dc.typeThesisen_US
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