Analysis of resource potential of objects of oil-contaminated wastes recycling system with variable scale effect

The article proposes a new approach developed according to the Data Envelopment Analysis (DEA) method for calculating the estimates of the resource potential of the schemes of oil-contaminated waste (OCW) storage - recycling technology as part of the OCW recycling system. A two-stage calculation algorithm has been developed, at the first stage of which the estimate of the resource value of the OCW in storages is calculated in a known way, and at the second stage, using the BCC and Super-efficiency models of the DEA method, estimates of the resource potential of system objects with a constant, decreasing or increasing effect of scale are determined. Depending on the ranking of the obtained estimates of the resource potential of the objects of comparison in the system and the effect of scale, the order of processing of the OCW in storages by the appropriate technologies is determined. The developed procedure for control waste recycling in the system allows making sound operational and tactical decisions based on the results of solving two optimization problems according to the criteria: increasing the resource potential of the system objects and reducing the processing time. Approbation of the developed approach was carried out on the example of the OCW recycling system, which includes 20 storage facilities and 10 technologies located on the territory of the Samara region. The proposed approach can be extended to other regions of the Russian Federation to make informed management decisions in the OCW recycling system.