PAPER TITLE :ENGINEERING MANAGEMENT OF ABATTOIR WASTEWATER: A CASE STUDY OF ONYEARUGBULEM MARKET, AKURE SOUTH WES

JOURNAL Of SUSTAINABLE TECHNOLOGY | VOLUME 6 NUMBER 1 2015

Paper Details

  • Author(s) : BABATOLA, J..O.1; ADEWUMI, J.R. 1* and ADEJUWON, E.O.2
  • Abstract:

This paper presents a sustainable approach to abattoir wastewater management
using Onyearugbulem Market abattoir in Akure, South West Nigeria as a case study. The research
approach combined both laboratory experiment and field work pilot scale treatment system in
establishing engineering parameters required for abattoir wastewater treatment. The result of the
pilot scale treatment system shows that the quality parameters (TS, TSS, BOD5 , COD and
Conductivity) meet the disposal standards by the National Environmental Standards and Regulation
Enforcement Agency (NESREA) after 25 days detention time in anaerobic treatment pond with the
exception of dissolved oxygen which was 0.1mg/L against 3.0mg/L recommended. In the abattoir,
the required land space for 25 days detention period for 3 anaerobic ponds of 3 m depth is 231 m2
which will take care of 594 m3 of wastewater. Three trapezoidal ponds (top width = 7 m; bottom width
= 5 m; depth 3 m and length = 11 m, Volume = 594 m3) is recommended for anaerobic treatment. In
order to improve the dissolved oxygen before disposal into receiving water body, it is recommended
that the effluent from anaerobic pond should be allowed to pass through a gentle slope with buffers
to create a turbulent flow and increase dissolved oxygen.