Abstract:
COMPARATIVE ANALYSIS OF THE IODINE VALUE OF SUNLIGHT BLENDS USING WIJS METHOD AND GLC METHOD
The iodine value (IV) is a measure of the unsaturation of fats and oils and is expressed in terms of the number of centigrams of iodine absorbed per gram of sample (% iodine absorbed) .
The IV values for Sunlight Blend oil samples were calculated using two methods.
1 .Wijs method
2.GLC method
Wijs method was allowed to calculate the number of double bond carbon (C = C) absorbed and remaining l2 was calculated by iodomatrictitration.
GLC method was used to analyze the methyl esters using fatty acid profile and IV was calculated theoretically.
The IV values of 30 Sunlight Blend oil samples were determined over a period of two months. The average % IV content from GLC Method was 34.43±2.1559, average IV from
Wijs Method was 34.44±2.4656.
TREND ANALYSIS OF ENVIRONMENTAL PARAMETER IN FATS AND OIL PROCESSING INDUSTRIAL EFFLUENT
Analysis of Environmental parameters in effluents from fats & oil processing industry is an important factor to measure the quality of effluents. The effluents are collect from varies
departments. In Uni lever Ceylon Ltd, the effluents are mainly containing fats, caustic, active detergent & shampoo. Firstly the effluents are collected in the large pans and the insoluble partical s like fats are separated by physical separation. The pH of effluents is reduced by the addition of acids. Once the soluble parts are separated the effluents are chemically
treated.
Three types of wastewater samples were collected daily from the effluenttreatment plant as effluent,aeration tank and treated affluent sample. Two types of parameters are used to
measure the quality of effluents. Chemical parameters such as COD, BOD, D.O & TDS and physical parameters such as temperature, pH & f low rate. COD, BODt pH & TDS were
measured in effluent & treated effluent samples while only pH & TDS inaerat ion tank.
The average pH/TDS values of effluent, treated effluent & aeration tank was 6.74/1080.5mg/l, 7.35/1 148.7 mg/l and 7.16/1156.8 mg/l respect ively. The average BOD/COD values of
effluent 's treatedef fluent was 546.44/1045 mg/l & 17.12/35.8
mg/l respectively. The Central Environmental Authority (CEA) specificat ions for pH, BOD & COD in treated effluent are 7,< 30 and < 250 respectively.
