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A comparison of four widely used linear equations of the Langmuir types of isotherm (The Langmuir Type 1, 2, 3 and 4) were examined in an experiment using dye sorption onto derived acid and salt treated Fish Activated Carbon (H3PO4-FAC and ZnCl2-FAC respectively). Isotherm parameters obtained from the four Langmuir linear equations differed. Though Langmuir type 1 is the most popular form, but the type 2 had the highest coefficient of determination (R 2 = 0.931-0.984) compared with the other Langmuir linear equations (with R 2 values ranges of 0.696-0.982, 0.613-0.926 and 0.613-0.926 for Langmuir type 1,3 and 4 isotherm models respectively). 3,7 bis(dimethylamino) phenothiazin-5-ium ion was used to measure the Extent of monolayer coverage (qm) and specific surface areas (SMB) following the application of type 1 isotherm. From this study, Value obtained for the Acid treated carbon (H3PO4-FAC with SMB ; 18.170) is higher than that of the Salt treated carbon, (ZnCl2-FAC, SMB ; 13.579) which compared more to that of commercial carbon, CAC (SMB ; 13.884) units in multiple of 10-3 km 2 kg-1. The reliability of the Langmuir type 1 and 2 methods seems very good in specific surface area estimation. @JASEM

Pu mpkin seeds were analysed for their nutritional and anti-nutrit ional co mposition, the results obtained were; mo isture content (5.00%), ash (5.50%), crude lipid (38.00%, crude fibre (1.00%), crude protein (27.48%), Available carbohydrate (28.03%) and calorific value (564kcal/ 100g). Elemental analysis shows that potassium is the most abundant element in the sample (273mg/100g) and manganese is least (0.06mg/100g).The anti-nutritional parameters analysed are; phytate (35.06 mg/100g ), o xalate (0.02±0.10mg/100g), hydrocyanic acid content (0.22±0.04mg/100g ) and nitrate (2.27±002mg/ 100g). The result shows that the pumpkin seeds if properly utilized can serve as good source of minerals.