Optimization of Batch Conditions for COD and Ammonia Nitrogen Removal Using cockle shells Through Response Surface Methodology
Year: 2018
Type: article
Abstract: The optimal conditions for the reduction of COD and NH 3 -N using cockle shells (CS) from a stabilised landfill effluent were analyzed.The influence of two variables (adsorbent dosage and pH) were analysed through the application of response surface methodology (RSM) and central composite design (CCD).Quadratic models were developed for the removals of COD and NH 3 -N parameters.The optimum conditions for removal of 65.6% and 53.6% for COD and NH 3 -N respectively was achieved at pH 6.34, adsorbent dosage of 20.21 g having 0.888 desirability value.The model F-value obtained for NH 3 -N removal Prob.> F value of 0.0001 with F-value of 104.21 was obtained.Similarly the Prob.> F value of < 0.0001 for COD with F-value of 82.74 was obtained, these P-values confirmed the significance of the model.The predicted response versus the experimental response depicted that the experimental data were relatively close to the predicted data.Thus, the generated models significantly enclosed the correlation between the process variables and the response.
Language: English
Subfield: Water Science and Technology
Field: Environmental Science
Domain: Physical Sciences
Open Access status: diamond
OpenAlex ID: W2913145262