Resource - Guidance Material
Technical Documents
Wastewater Treatment
National Study for the Composition of Sewage Sludge
01/12/1998
Discharges of hazardous wastes to sewers can cause treatment processes to fail. This can result in unsatisfactory effluent being discharged to natural waters, or in incompletely digested sludge being pumped to lagoons where it can create a public health risk or bad odours.