Parallel waterway test in the Koishikawa River, tributary of the Tokorogawa River, Kitami City, Hokkaido, Japan.
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概要
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A parallel waterway test was conducted to verify the ability of zeolite rocks, shell-bearing clastic rocks and woody biomass chips containing ferment bacilli to remove T-N, PO<SUB>4</SUB>-P and other physicochemical pollutants from water. Zeolite rocks from Tan-no Town in northeastern Hokkaido consist predominantly of heulandite-clinoptilolite series minerals and lesser quartz, plagioclase and opal-CT. The cation-exchange capacities (C.E.C.s) of zeolite rocks ranged from 170-176 meq/100g. Commonly occurring shell-bearing clastic rocks from Akan Town in eastern Hokkaido are dominantly calcite with lesser quartz, plagioclase, smectite, heulandite-clinoptilolite series minerals, gypsum and pyrite. The C.E.C. of shellbearing clastic rocks was 39 meq/100g.<BR>The results of this parallel waterway test clearly demonstrated that the zeolite rocks, shell-bearing clastic rocks and woody biomass chips were effective for removing of PO<SUB>4</SUB>-P, NH<SUB>4</SUB>-N, NO<SUB>2</SUB>-N, NO<SUB>3</SUB>-N, T-N, COD and BOD from the river water.
- 資源地質学会の論文
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