TREATMENT AND RECYCLING OF WASTEWATER FROM SELECTED PIGGERY IN FUTA COMMUNITY

Year 2018, Volume: 2 Issue: 3, 106 - 112, 27.09.2018

Olawale Olanrewaju

Abstract

The
establishment of piggery farms in residential areas is becoming an issue of
public health concern owing to the discharge of its contaminated wastewater into
the surrounding environment. Due to potential pollutants in these effluents,
this study also attempted treating and recycling wastewater from selected
piggery in FUTA community. The available piggery farms (medium and small-scale)
cannot afford the cost of most existing municipal wastewater treatment plant. In
furtherance, designing an effluent treatment plant made from locally available
plastic materials which consist of bio-filters such as coarse, fine sand and
activated carbon was considered. The water quality characteristics was carried
out before the treatment of the wastewater in order to know the present contaminants.
Moreover, the microbial-treated water was channeled into the filtration tank,
where the larger particles of dirt (gravel and coarse sand) were removed. Also,
grease and oil were removed by the activated carbon. The performance of the
treatment plant was evaluated on the effluents and the results showed a
decrease in Biological Oxygen Demand, Dissolved Oxygen, Phosphorus, Total
Nitrogen, Total Dissolved Solids, Total Suspended Solid, Total Solids and Heavy
metals (Cadmium, Lead and Zinc). Surprisingly, there was an increase in pH value
of the microbial-treated water due to the detention time. The values obtained
after treatment were compared to the Food and Agricultural Organization (FAO)
water quality standard. This showed that the water is safe for discharge into
the environment (waterways) and it can be used for irrigation purposes.

Keywords

Piggery farms, wastewater, detention time, activated carbon

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