About 1800 tons of daily solid waste disposal is one of the consequences of the speedy industrial expansion in the province of
Khuzestan in the south west of Iran. There are more often than not diverse criteria for assessing the resulted pollution loads from
solid waste disposal. In this paper, a new application for the Intelligent Decision System (IDS) is demonstrated for industrial
solid waste assessment. IDS software is a Windows-based package for handling Multiple Criteria Decision Making (MCDM)
problems considering both qualitative and quantitative criteria under uncertainties. The basis of IDS is a recently developed
theory named the Evidential Reasoning (ER) approach. The major features, superiority and excellence of IDS will be clarified
through its application to the ranking of the industrial units located in the Khuzestan Province. Moreover, as a complimentary
assessment, a sensitivity analysis is carried out in which the effect of decision maker’s attitude toward risk on the total utility
which each industry would gain is investigated. The results show that Ahwaz, Abadan, and Khoramshahr are respectively the
three most polluting cities in the Khuzestan province. It is concluded that IDS can be utilized not only to handle problems which
traditional methods can work out, but also to arrange and evaluate more difficult decision problems that traditional methods are
not sufficiently expert of handling.