Analysis of pollution status of Amadi Creek and its management

Abstract

Research Article| September 01 2006 Analysis of pollution status of Amadi Creek and its management J. C. Agunwamba; J. C. Agunwamba 1Department of Civil Engineering, University of Nigeria, Nsukka, Nigeria E-mail: jcagunwamba@yahoo.com Search for other works by this author on: This Site PubMed Google Scholar C. N. Maduka; C. N. Maduka 1Department of Civil Engineering, University of Nigeria, Nsukka, Nigeria Search for other works by this author on: This Site PubMed Google Scholar A. M. Ofosaren A. M. Ofosaren 1Department of Civil Engineering, University of Nigeria, Nsukka, Nigeria Search for other works by this author on: This Site PubMed Google Scholar Journal of Water Supply: Research and Technology-Aqua (2006) 55 (6): 427–435. https://doi.org/10.2166/aqua.2006.036 Article history Received: May 26 2005 Accepted: June 21 2006 Views Icon Views Article contents Figures & tables Video Audio Supplementary Data Share Icon Share Facebook Twitter LinkedIn MailTo Tools Icon Tools Cite Icon Cite Permissions Search Site Search Dropdown Menu toolbar search search input Search input auto suggest filter your search All ContentAll JournalsThis Journal Search Advanced Search Citation J. C. Agunwamba, C. N. Maduka, A. M. Ofosaren; Analysis of pollution status of Amadi Creek and its management. Journal of Water Supply: Research and Technology-Aqua 1 September 2006; 55 (6): 427–435. doi: https://doi.org/10.2166/aqua.2006.036 Download citation file: Ris (Zotero) Reference Manager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex In this research work, the oxygen sag curve and purification capacity of Amadi Creek was studied. The reaeration constant (k2) was computed from data generated by sampling the DO concentration along the creek from the point of waste discharge downstream while the deoxygenation constant (k1) was determined by monitoring the BOD of samples obtained along the creek. The reaeration coefficient ranged from 0.09 d−1 to 0.17 d−1. The Streeter–Phelps formula grossly under-estimated k2. Hence, a new empirical model was derived by multiple regression analysis and was successfully verified with an independent set of data. The study not only identified and quantified the amount of effluent into the creek from various sources but also evaluated its assimilatory capacity which is important information for the prevention of further degradation of the creek water. The critical dissolved oxygen deficit was 3.6 mg/l while the existing dissolved oxygen was also 3.6 mg/l which falls below the 5.0 mg/l stipulated for fish life. The high level of pollution in the creek calls for some critical implementation of the recommended strategies. Amadi Creek, management, reaeration coefficient, water pollution This content is only available as a PDF. © IWA Publishing 2006 You do not currently have access to this content.