Biofilm and Trace Metals Removal from Waste Aqueous Effluent Using Moringa oleifera-Silver Nitrate Microparticles
Journal Title: Current Journal of Applied Science and Technology - Year 2017, Vol 20, Issue 6
Abstract
The present research investigated the synthesis of a novel adsorbent by combining Moringa oleifera and silver nitrate (AgNO3). The chemical components of the pre-adsorbent and adsorbent composites were characterized using Fourier Transform Infra-red spectroscopy (FTIR). The equilibrium adsorption capacity (Qe) for Cu, Mn and Fe in DMSH2O adsorbent was 0.04, 0.04 and 0.04 mg/g, respectively, while that for Cu, Mn and Fe for DMSC2H5OH adsorbent was also 0.04, 0.04 and 0.04 mg/g, respectively. The results indicate that the adsorbent was effective in removing Cu more than Mn and Fe from the aqueous salt mixture. Furthermore, the results observed for the biofilm experiment revealed that the M. oleifera-AgNO3 biocidal action was effective in deactivating oxidizable components in the wastewater system after 8 days. T-test of difference=0, at df=12, P<.05 for metal adsorption and t-test of difference=0.04, at df=8, P<.05 for COD removal indicate no statistical significant difference in metals adsorbed and COD removed in the waste stream. The above findings have demonstrated that the synthesized M. oleifera-AgNO3 adsorbent would be effective in cleaning-up waste streams contaminated with microbes and trace metals.
Authors and Affiliations
Ukiwe L. Nnabugwu, Oki R. Remi
Keywords
Related Articles
- EP ID EP318580
- DOI 10.9734/BJAST/2017/33000
- Views 111
- Downloads 0
Microstructural Evolution of Aluminum-4043/Nickel-Coated Silicon Carbide Composites Produced via Stir Casting
Aluminum-silicon carbide (Al/SiC) metal matrix composites have become a promising engineering material owing to its high strength to weight ratio. However, there is formation of aluminum carbide phase which is deleteriou...
A Comparative Study of the SAR Reduction Techniques for the Effects of Electromagnetic Waves on Human Head
Aims: In this paper, a comparison between three different human head models with three different types of antennas is presented to show the effect of shielding technique on the reduction of SAR. The three human head mode...
Adaptive Time Steps Runge-Kutta Methods: Comparative Analysis of Simulation Time in Nonlinear and Harmonically Excited Pendulum and Duffing Oscillators
Time management without integrity compromise is an integral part of good engineering practice. The present study investigated for the required computation time in nonlinear and harmonically excited oscillators (Pendulum...
Development of Ecofriendly Automobile Brake Pad Using Different Grade Sizes of Palm Kernel Shell Powder
Serious health repercussions/risks such as asbestosis and mesothelioma have engendered automakers to earnestly consider the use of non-asbestos organic (NAO) brake pads in contemporary manufacturing. On this account, sus...
Phenolic Compounds Enhanced Low Temperature Stress Tolerance in Tomato (Solanum lycopersicum L.)
Low temperature stress adversely affects plant growth and development and it directly affects the yield and quality of tomato. Phenolic compounds have been implicated to mitigate cold stress. Therefore an experiment was...