To create, establish, maintain and operate a public incinerator for waste disposal by incineration by any means or method, for use by municipalities for the disposal of municipal wastes and by industries for the disposal of industrial waste; and to lease land and said incineration facilities for the operation of an incinerator for a term not exceeding 99 years and to fix and collect just, reasonable and non-discriminatory charges for the use of such incinerating facilities, and to use the charges or lease proceeds to defray the reasonable expenses of the Port District, and to pay the principal of and interest on any revenue bonds issued by the Port District.
70 ILCS 1825/4.20