THEORETICAL ESTIMATION FOR REMOVAL ABILITY OF ORGANIC POLLUTANTS THROUGH CRUSHED STONE LAYER AROUND LEACHATE COLLECTION PIPE AND DESIGN OF THE PIPE IN SEMIAEROBIC SANITARY LANDFILLS

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  • 準好気性埋立地浸出水集排水管周りの砕石層における有機汚濁浄化能の理論的評価と管設計
  • ジュン コウキセイ ウメタテチ シンシュツスイシュウ ハイスイカン マワリ ノ

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Abstract

The removal ability of organic pollutants from leachate is numerically studied in crushed stone layer around leachate collection pipes on the bottom of semiaerobic sanitary landfills, which are popular in Japan. It is shown that to exhibit the ability of TOC removal, the pore fraction of the perforated pipes is desirable about 25%, the depth of crushed stone layer should be 0.5-1.0m, and the diameter of the pipes should be 1m in latticework arrangement, or 2m in fish-bones-like arrangement on the conditions that the interval between each of pipes is 20m and design target of TOC removal is 1000mg/L.

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