COD and Nutrient Removal Kinetics of Piggery Wastewater in Nigeria
Journal Title: Journal of Scientific Research and Reports - Year 2017, Vol 16, Issue 5
Abstract
Waste stabilisation ponds (WSPs) have been employed in treatment of diverse kinds of wastewater over the years. This system’s dynamics have been poorly understood and this has led to diverse problems over time such as reduced efficiency of reactors. This study employed the use of four models in the study of biological reaction in removal of organic matter from the waste stabilisation ponds. Prediction of removal rates of piggery wastewater in the ponds and at different retention times were studied using first order model, Monod, Grau and the Stover Kincannon model by fitting model to experimental data. Adaptability of the Monod model was poor in the anaerobic and part of the facultative pond. Monod model showed extent of substrate utilization by the cell yield coefficient ‘Y’ while the Stover Kincannon model’s maximum utilization rate constant (μmax) increased with increase in retention time. Stover Kincannon model showed a better adaptability (R2) than first and Monod models. Although the adaptability of first order was very poor, incremental biodegradation with time was noted which agrees with other models. Grau model gives a better system adaptation and agrees with other model substrate degradation prediction and also it best predicts efficiency of removal of substrate.
Authors and Affiliations
B. U. Okoro, N. E. Nwaiwu
Keywords
Related Articles
- EP ID EP326548
- DOI 10.9734/JSRR/2017/24287
- Views 138
- Downloads 0
Science and Technology: A Catalyst for Improving Human Health in Developing Countries
Science and technology have the potential to make major contributions to the development of medical devices that can help address the highest burdens of diseases in developing countries. This paper examined how science a...
Antioxidant Vitamins Status in Wistar Rats with Induced Thyroid Dysfunction
Oxidative stress plays an important role in the pathogenesis of thyroid disorders. Major effects of thyroid hormones are the acceleration of mitochondrial respiration which is accompanied by excessive production of react...
Heavy Metal Pollution Assessment along Msimbazi River, Tanzania
Aims: The study aimed to determine the status of accumulations of heavy metals (Cr, Cu, Pb and Cd) in water and soil. The study also established the main entry of heavy metals in the river since heavy metals are referred...
Improving Modelling Accuracy of Aerodynamic Curve of a Wind Turbine Using Neural Networks
This paper addresses improved modelling of one of important aerodynamic curves of a wind turbine by means of artificial neural networks (ANNs). Aerodynamic curves play an important role in designing controller in wind tu...
Adaptation to the Effects of Climate Change on Health: Cost Implications for Ghana
This study estimates the additional investment that would be required by the Ghanaian government for adaptation to climate change in the health sector. The focus is on this sector because it is possibly the most importan...