A municipal wastewater treatment plant is a complex system of technological devices and facilities designed to remove pollutants from wastewater. The operation of such plants generates a waste stream that can be classified into three types: screenings (code 19 08 01). sand trap contents (code 19 08 02). and stabilized municipal sewage sludge (code 19 08 05). https://danddcollectiblers.shop/product-category/dip-sets/