Abstract:
The study was to enumerate the microbial population in the wastewater and the draining streams of slaughterhouse The multiple tube fermentation technique method was used for analysis. Sterile sample bottles of 2.0 liters were used to specially draw part of the wastewater and the stream water at the two abattoirs as wastewater was running off the drainage system and inside the streams after mixture with SWW. Samples were picked from these slaughterhouses twice on different days during the morning hours between 8.00am and 9.00 using the grab sampling method. The samples were placed in an ice box containing ice packs and were transported immediately to the laboratory within 1 hour after collection for analysis. The results showed that both abattoir wastewater and stream water contain several million colony forming units (cfu) /g of total coliform, Municipal SWW and draining stream water having 4.8x103 and 4.x104 , and Asuret SWW and draining stream water 4.2x104 and 4.1x107 cfu/g respectively. The presence of these nonpathogenic microbes indicates the possible presence of pathogens of enteric origin. And when Oxytetracycline and vim were used for treating the bacteria, the bacteria were destroyed. It was thus concluded that it is important to treat the SWW before releasing it in the nearby water sources.
