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Step 1 Step 2 STEP 1 FINE SCREENING: The wastewater flows through a perforated rotary drum screen to remove large material in the wastewater. STEP 2 BIOLOGICAL TREATMENT: The screened wastewater The screened wastewater then enters the bioreactor tanks (below ground) where microorganisms feed on waste particles and dissolved organic material to help clean the wastewater. wastewater. WATER RECYCLING DEMONSTRATION FACILITY ---PAGE BREAK--- MEMBRANE FILTRATION: The treated wastewater then moves into the ultrafiltration membranes. These membrane filters contain small tubes made of material, which have microscopic pores that screen out smaller particles and the majority of microorganisms. STEP 3 WATER RECYCLING DEMONSTRATION FACILITY ---PAGE BREAK--- STEP 4 DISINFECTION: After passing through the membranes, the water is disinfected by ozone and ultraviolet light to kill any microorganisms that remain. Ozone also helps to eliminate odor and color in the water. Chlorine is then added to ensure that the recycled water remains clean in the pipes while being delivered to the end users. The final product is clean, clear, odor-free disinfected recycled water that is ready for non-potable use. non-potable use. WATER RECYCLING DEMONSTRATION FACILITY ---PAGE BREAK--- CALIFORNIA-FRIENDLY LANDSCAPED GARDEN F E A T U R E S RAINWATER HARVESTING AND POROUS PAVEMENT reduces pollution to streams and the ocean and helps replenish the local groundwater basin WATER-EFFICIENT IRRIGATION effective at minimizing water loss from overspray and evaporation DROUGHT-TOLERANT LANDSCAPING minimizes the dependence on water while beautifying the aesthetics of the campus