NATUREBASED OR PROCESSBASED PLANTS FOR ON-SITE WASTEWATER SYSTEMS LOW-TECH" NATURBASED HIGH-TECH" PROCESSBASED NINU- Norwegian University of Science and Technology Prof Hallvard Odegaard Dep Hydraulic and Environmental EngineeringNTNU - Norwegian University of Science and Technology Dep. Hydraulic and Environmental Engineering Prof. Hallvard Ødegaard NATUREBASED OR PROCESSBASED PLANTS FOR ON-SITE WASTEWATER SYSTEMS ? ”LOW-TECH” NATURBASED ”HIGH-TECH” PROCESSBASED