METHOD FOR CLEANING CONTAMINATED UNDERGROUND WATER

摘要

PROBLEM TO BE SOLVED: To provide a method for clarifying contaminated underground water using a wall body which permanently has ability of clarification and exhibits no possibility of remaining of foreign matters and can control the ability of clarification. SOLUTION: A channel hole 11a crossing a vein of water 5a of contaminated underground water in the up-and-down direction is drilled. A plurality of fluid feeding pipes 13 with fluid spouting holes 13a are inserted into the channel hole 11a and broken stones and pebbles 15 are filled therein to form a water- permeable wall body 17. A fluid 25 containing substances for propagating and activating organic substance decomposing microorganisms in water is fed from the fluid feeding pipe 13. As the substances, oxygen and methane are preferrable.