| 摘要 |
<p>PROBLEM TO BE SOLVED: To prevent an evil influence of an increase of sewage in rainfall by forming a waterway on the periphery of a recess to be embedded with waste and inclining a roof to cover the plant downward toward the waterway. SOLUTION: This waste disposal plant 1 is set on the surface of the recess in soil and has a water shielding sheet 2 for isolating waste 3 from soil. A strut 4 higher than the ground is erected almost in the center of the plant 1, and a sheet roof 5 with one end supported by the strut 4 and inclined from the strut 4 downward toward the ground around the recess is provided to cover the plant 1. The sheet roof 5 is inclined from the strut 4 downward toward the ground due to the level difference between the strut 4 and the ground, a rainwater drainage 6 is provided along the peripheral edge of the roof 5 and connected to the sewerage, water reservoir, etc. Further, a sewage discharge passage 7 is extended through the corner of the water shielding sheet 2 where the leaked sewage is liable to accumulate and connected to sewage purifying facilities.</p> |
