February 2011

Protective role of curcumin on cadmium-induced nephrotoxicity in rats

  Cadmium (Cd) is a well-known human carcinogen and a potent nephrotoxin. Curcumin, the yellow bioactive component of turmeric has established its antioxidant activities. The aim of this study was to investigate the protective role of curcumin against Cd induced nephrotoxicity. The rats were treated once daily by oral gavage for five days and divided into four groups of 8 rats each: control, Cd acetate 200...

Author(s): Naovarat Tarasub, Chinnawat Tarasub and Watcharaporn Devakul Na Ayutthaya

February 2011

Concentrations of heavy metals in some pharmaceutical effluents in Lagos, Nigeria

  The concentrations of some heavy metals in the effluents of nine pharmaceutical companies operating in Lagos, Nigeria were determined using atomic absorption spectrophotometer. The heavy metals analyzed in this study included Cadmium, Chromium, Lead, Nickel, Zinc and Copper. Most of the samples were found to contain the metals in varying concentrations. The highest concentration of heavy metal detected was...

Author(s):   Chimezie Anyakora, Kenneth Nwaeze, Olufunsho Awodele, Chinwe Nwadike, Mohsen Arbabi, and Herbert Coker

February 2011

A study on removal characteristics of para-nitrophenol from aqueous solution by fly ash

  The removal characteristics of para-nitrophenol from aqueous solution by fly ash were investigated under various conditions of contact time, pH and temperature. The influence of pH on the para-nitrophenol uptake by the fly ash was carried out between pH4 and pH 10. The level of uptake of para-nitrophenol by fly ash increased at higher pH values. The effect of temperature on the uptake of para-nitrophenol was...

Author(s): Alinnor I. J. and Nwachukwu M. A.