Petrochemical plants generate solid wastes and sludge some which are hazardous in nature due to toxic organics and heavy metals (e.g. spent caustic)
Proper facilities should be provided for handling and storage of hazardous wastes. For final disposal , recycling/reuse should be given priority. For incinerable wastes, properly designed incinerators should be installed and non-incinerable hazardous wastes should be disposed in secured landfill (TSDF)