According to the database of Iranian industrial organizations, there are more than two hundred recycling units of used motor oil currently in Iran. With regard to the role of industrial sector for economic development and its priority for promoting other sectors to establish job opportunities, we need to survey the used motor oil industry through its indices. The objective of this study was survey of economic indices in used motor oil industry equipped to acidic sludge recycling unit. Therefore, the procedure of calculating the indices that would enable industries in specific sector regarding sustainability performance is presented. Present study was performed in site of case study industry. Based on the studies of technical and economical view-point, the indices values such as value-added percent, profit, annual income, breakeven point, value-added, output value, data value, variable cost of good unit and production costs were founded 56.34%, $2795396.8, $2775522.94, $260.83, $2955795.3, $2289986, $5245781.3, $535 and $2470258.36 respectively. The breakeven point about 6% and the time of return on investment about 0.26 (3.2 months) was indicated the economic success of this project.

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