Abstract:
Water quality management is one of the most challenging issues as the industrialization; urbanization and human
population continue to grow globally.
Large quantities of unmanaged wastewater (WW) from the industr
ies and various
municipalities find their ways into the water bodies and can have adverse effects on both public and ecosystem health.
Efforts to assess the levels of pollution in water bodies through water quality assessment are therefore needed in order
to
create awareness to the concerned authorities so that necessary corrective measures can be undertaken. In this work, water
quality assessment survey was carried out along the river Nyando in relation to the WW discharged from Muhoroni
Agrochemical and f
ood company (ACFC) Ltd over a period running from October 2015 to August 2016. S
amples were
collected five times from the sampling points labeled 1
-
5 during the entire period of study. The samples were then
analyzed for selected physico
-
chemical parameters
using standard analytical methods. The results showed that there were
variations in the values of physico
-
chemical parameters between the sampling points 4 and 5 located along the river. The
study also showed that the entire WWTP was very efficient in COD
and BOD
5
with removal efficiencies of 92.47% and
97.26% respectively.
