A Study of Self-purification Capacity in Anyim Stream

Authors

  • J. I. Obianyo Department of Civil Engineering, Michael Okpara University of Agriculture Umudike, Abia State, NIGERIA
  • E. E. Ohazurike Department of Civil Engineering, Michael Okpara University of Agriculture Umudike, Abia State, NIGERIA
  • O. O. Onyeike Department of Civil Engineering, Michael Okpara University of Agriculture Umudike, Abia State, NIGERIA
  • I. Ije Department of Civil Engineering, Michael Okpara University of Agriculture Umudike, Abia State, NIGERIA
  • S. Eboh Department of Civil Engineering, Michael Okpara University of Agriculture Umudike, Abia State, NIGERIA
  • L. I. Nwobia Department of Civil Engineering, Michael Okpara University of Agriculture, Umudike, Abia State, NIGERIA

Keywords:

A study, Self-purification, Capacity, Anyim, Stream

Abstract

This paper studied the self-purification capacity of Anyim stream to identify the location where pollution load is comparably less for water abstraction and economical treatment and distribution to consumers. Standard methods were used to determine the water quality parameters along the stream reach. Results show that temperature remained constant at 26.60, turbidity reduced from 145.4 NTU to 85.0 NTU, average color along the stream were 198.33 PCU, 192.33 PCU, 121.33 PCU and 135.67 PCU, average dissolved oxygen trend were 6.0 mg/l, 8.0 mg/l, 4.0 mg/l and 7.0 mg/l. BOD trend presented 15.0 mg/l, 10.0 mg/l, 30.0 mg/l and 20.0 mg/l. Maximum oxygen deficit of 9.17 mg/l occurred in 4.42 days while maximum oxygen recovery of 31.46 mg/l happened in 21.68 days. Complete self-purification will take place at a distance of 114.57 km downstream of the influent station of Anyim stream. The trend show that water in Anyim stream experienced self-purification from Okosi through Ahaba to Okporo-akanu and increased to Amaokwe because of effluent from confluence station of Anyim and Etu streams. It is recommended that water should be sourced downstream of Okporo-akanu and 114.57 km downstream of Anyim stream for treatment and distribution to consumers since these sources would require less elaborate treatment methods and hence would be cheaper and more economical to manage.

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Published

2022-04-26

How to Cite

Obianyo, J. I., Ohazurike, . E. E. ., Onyeike, . O. O. ., Ije, I. ., Eboh, S., & Nwobia, . L. I. . (2022). A Study of Self-purification Capacity in Anyim Stream . Nigerian Journal of Technology, 41(2), 359–364. Retrieved from https://nijotech.com/index.php/nijotech/article/view/2821

Issue

Section

Agricultural, Bioresources, Biomedical, Food, Environmental & Water Resources Engineering