Waste cooking oil (WCO) is that has been used for frying more than three times, so it classified as dangerous which can endanger human health and also have a negative impact on the environment. The city of Denpasar every month produces approximately 604,629 liters/month waste until now not clearly managed. WCO if managed properly will be potential, because processed into products provide added ...

Jatropha curcas L. or physic nut belonging to family Euphorbiaceae is an all purpose, zero waste perennial plant. It is considered as a potential source of non-edible fuel producing plant along with its different medicinal properties and grows well in the tropical and subtropical climate in India. The seed contains 40-50 % viscous oil known as ‘curcas oil’. Petroleum based fuel are limited rese...

The presence of ethylene glycol in used motor oil is an indication of antifreeze coolant leakage into the crankcase of an internal combustion engine, thus predicting engine-wear problems. Several options for the determination of glycols currently exist, including colorimetric tests which are easy to perform, but subjective in interpretation and not particularly sensitive, fast or cost effective...

The management of waste cooking oil (WCO) often poses significant challenges. improper disposal WCO results in negative environmental impacts and economic losses. However, from a circular economy perspective, can be recycled used as sustainable feedstock for numerous industrial products, replacing virgin vegetable oils. This approach enables the recovery resources while simultaneously addressin...

The quantity of the conventional sources energy such as petroleum, coal, and deposits hydrocarbon are limited in nature. rapid growth is observed industrial transportation section due to increase population that has compelled mankind look for an alternative fuels. Biodiesel can be a potential substitute its ease availability, accessibility, lower cost, nontoxic characteristics. In this study, w...

Waste cooking oil (WCO) was used as a potential feedstock for biodiesel production. High levels of free fatty acids (9.85% w/w) in WCO made it an undesirable substrate for direct transesterification reaction. To solve this issue, a two-step process was implemented in this research. Firstly, esterification reaction was performed in presence of sulfuric acid as a common acid catalyst to reduce th...

Biodiesel is a fuel comprised of mono alkyl esters of long chain fatty acids derived from vegetable oils or animal fats. Biodiesel is reliable, renewable, biodegradable and regarded as a clean alternative fuel to reduce exhaust emissions. Vegetable oils have become more attractive for the production of biodiesel in the recent past owing to its environmental benefits and the fact that it is made...

Cooking conditions affect oil properties and consequently, the quality of derived biodiesel. Nevertheless, little information regarding impact cooking process on biodiesel is currently available, especially for palm Therefore, this study examined effect temperature, time use, length reuse, selected produced from palm-based waste oils (WCO). Several WCO collected restaurants belonging to four ca...