This advanced course explores green technologies, waste treatment, and ecological solutions. It covers principles of ecological design, biologically-based waste treatment systems, water quality parameters, and the implementation of green technologies. Key topics include ecology, ecological engineering, nutrient cycling, wastewater treatment, wetland treatment, leach fields, anaerobic digestion, composting, stream restoration, LEED certification, green walls, green roofs, living machines, rain gardens, bioswales, and algal turf scrubbers.