Lipid Extraction and Optimization for Biodiesel Production from Blended Waste Water Treatment Sludge Disposal with Algae

Abstract

Waste sewage sludge is the most pollutant that affects our environment which constituent’s major organic volatile materials and it represents lipid components. And also non-renewable energy engine consumption releases high amounts of oxide pollutants to the environment; in addition the depletion non-renewable energy like petroleum, natural gas fossil fuel increases from time to time over the world with the demand increment. In the recent time production of biodiesel established mostly from edible oil for the coverage of non-renewable energy depilation. But also it again became great challenges on food security. Therefore seeking another opportunity that lipid extracting from algae and sludge is the recent studies for substitution of consumable and non-renewable raw materials and farther treatment for sewage sludge wastes. The objective of this study was extraction and optimization of lipid from blended sludge disposal with algae for biodiesel production. The procedures are fist characterize algal and sludge wastes, extract lipid component by Soxhlet extraction. From the experiment the optimization was achieved at 80°C and 6 h retention time, that 47% lipid recovered from 20 g equal dried blended sludge and algae using 200 ml n-hexane solvent. And also design model equation where developed using design expert software with in the factor ranges (time 3 to 6 h and temperature 75 to 85°C).