Regional-wide waste disposal project on seacoast of enclosed coastal sea

Abstract

The wastes which are discharged from Kinki district amounts to a hundred millions tons a year. Even if the measures must be taken to promote resource recovery from such wastes and to reduce the weight and volume of wastes by intermediate treatment, we must dispose of forty-six millions tons of wastes to the final disposal site. Our plan is to dispose of the wastes such as general wastes, industrial wastes, soil discharged by construction activities, and dredged sand from the regional area (149 municipalities) to the two of our final disposal sites, off-Amagasaki (113ha) and off-Izumiotsu (203ha) with an eye to prevent environmental pollution. In the impermeable water controlled area where we dispose of general wastes, sewage sludge, slag, smoke dust and so on, we have driven in steel sheet piles in behind the sea wall down to the clay layer, and we are to discharge the water through the waste water treatment facilitiy in order to prevent water pollution.