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Clinical Microbiology: Open Access | ISSN: 2327-5073 | Volume: 7
Microbiology: Education, R&D and Market
7
th
Annual Summit on
September 28-29, 2018 | San Antonio, USA
The production and application of bioflocculants and their nanoparticles in dairy wastewater
treatment
Adeleke R Oluwakamiye
and
Bukola C Adebayo-Tayo
University of Ibadan, Nigeria
O
ne of the most pervasive and challenging problems faced by dairy industries is the availability of clean water, reclamation
of wastewater and its discharge. This challenge requires modern biotechnological and the fast-growing nanotechnological
approaches as robust and newest methods of treating and purifying water at lower cost with less energy in production
industries, while at the same time minimizing the use of chemical flocculants and the deleterious health and environmental
effects. Bioflocculants, and its silver and magnetic nanoparticles were produced and applied in dairy wastewater treatment.
The flocculating activity of all the isolates ranged from 12.14 - 85.39% in which
Bacillus subtilis
B2 had the highest flocculating
efficiency (85.40%). The best three with high flocculating efficiencies were selected for further studies and production of
nanoparticles. They were
Bacillus subtilis
B2 (85.39 %),
Fusarium
sp. F6. (81.30%) and
Bacillus licheniformis
B5 (70.88 %). The
application of the bioflocculant nanoparticles brought about a reduction in BOD, COD, TSS, TDS, pH, Salinity, Conductivity
and turbidity with percentage reduction ranging from 1.11% - 44.17% for BOD, 16.12 – 71.44% for COD, 7.61 – 83.70 % for
TSS, 2.02% – 74.94% for TDS, 4.8 – 6.2 for pH, 2.38% - 85.20% for salinity, 15.25% - 85.69% for conductivity and for turbidity
2.56% - 85.09%. Metal content reduction ranged from 2.91% - 71.46% for Fe, 6.15% - 95.38% for Cu and 12.57% - 97.96% for
Zn. Fourier transform infrared spectroscopy revealed the carboxyl (COH) and hydroxyl (OH) group that gave rise to reduced
and stable nanoparticle bioflocculants. Scanning electron micrograph showed their crystalline fluffy structures, dendritic
nature in different shapes and sizes.
Biography
Rachael is a first year PhD student in the Biotechnology and Industrial Microbiology Program, University of Ibadan, Nigeria. Where she is working to proffer
solution to the seemingly unending problem faced by industries in the reuse and discharge of wastewater. She is interested in employing biotechnological and
nanotechnological approach in mitigating and recycling wastewater discharge from factories/ industries.
rachaeloluwakamiye@yahoo.comAdeleke R Oluwakamiye et al., Clin Microbiol 2018, Volume: 7
DOI: 10.4172/2327-5073-C3-040