ASSESSMENT OF SOME PHYSICO-CHEMICAL CHARACTERISTICS OF TEXTILE WASTEWATER OBTAINED FROM LAGOS, NIGERIA.

Abstract

Wastewater discharges from two textile industries in Lagos (Nigeria) were analyzed for some pollution characteristics such as temperature, pH suspended solids (SS), total solids (TS), permanganate value (PV), biochemical oxygen demand (BOD) and chemical oxygen demand (COD). For the first textile industry the range of values for the above named characteristics were: Temperature (29.10 - 33.50)0C, pH (9.25 - 11.18), SS (506.50 - 663.20) mg/l, TS (5157.50 - 6930.30) mg/l, PV (528.70 – 728.60) mg/l, BOD (646.10 – 880.00)mg/l, and COD (2190.00 – 2984.00)mg/l. Also for the second industry range of values were: Temperature (31.40 – 41.80) 0C, pH (9.22 - 11.60), SS (455.60 – 684.90) mg/l, TS (5099.20 – 7624.10) mg/l, PV (469.60 – 746.40) mg/l, BOD (584.30 – 885.00)mg/l and COD (2012.13 – 2960.00)mg/l. The study revealed that the textile wastewaters were highly polluted. The polluted wastewaters are discharged daily into nearby receiving surface waters. Urgent attention is needed to protect the quality and portability of the receiving surface water so as to reduce its adverse health implications on consumers in the surrounding environment. Keywords: Textile wastewater, Textile industries, Characterization, Pollution, Treatment, Disposal.