aerial drone perspective sewage sludge disposal practices sustainable waste management strategies

sewage sludge waste management wastewater treatment drone aerial view environmental impact disposal site recycling sustainability biosolids land application incineration anaerobic digestion effluent plant monitoring resource recovery landfilling composting pollution control remediation ecological soil amendment organic fertilizer water dewatering drying processing protection sustainable green technology circular economy science engineering utilization energy renewable regulations prevention reduction minimization beds thickening technologies