PJB-2011-417
BIOCONVERSION OF DRIFTED SEAWEED BIOMASS INTO ORGANIC COMPOST COLLECTED FROM THE KARACHI COAST
TOOBA HAQ*, FAROOQ AHMED KHAN, RAZIA BEGUM AND ALIA BANO MUNSHI
Abstract
Present bioconversion studies were carried out to convert drifted seaweed biomass into bioactive organic compost. Chemical analysis of the collected seaweed biomass from the Karachi coast revealed 60.30 % organic matter. Aerobic composting method i.e., windrow composting technique was applied for the conversion of collected seaweed biomass into organic compost. Employing this technique almost 70% biomass was converted into organic compost. On analysis, the compost obtained by the above method showed 2.3% Nitrogen, 0.86% Phosphate and 1.8% Potassium. Results for the analysis of heavy metals showed Mercury 0.05 mg / kg, Arsenic BDL Cadmium 0.080 mg / kg and Copper 7.1 mg / kg. Results for the biological evaluation of seaweed compost showed 78% germabilty while the Biogold and cow dung showed 83 and 60% germabilty.
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