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The amount of heavy metals derived from domestic sources in Japan |
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| Authors: | Chino Mitsuo Moriyama Kiyoshi Saito Hiroshi Morn Tadahiro |
| Institution: | 1.Facult. Agr., Univ. Tokyo, 113, Bunkyo-ku, Tokyo, Japan ;2.Water Quality Div., Dept. Sewage Works, Yokosuka City, Kanagawa, Japan ;3.School of Med., Nagasaki Univ., Nagasaki City, Japan ;4.Facult. Agr., Shimane Univ., Matsue City, Shimane, Japan ; |
| Abstract: | The amount of heavy metals discharged from daily life was estimated in order to know the origin of the metals contained in the sewage sludge which is produced in the wastewater treatment plant treating only domestic wastewater. The amounts of the metals discharged from our daily life were estimated to be in the range of 0.2 to 0.3 for Cd, 1.6 to 1.9 for Ni, 3.5 to 6.8 for Pb, 0.8 to 1.4 for Cr, 8.2 to 19.3 for Mn 9.4 to 55.8 for Cu, 44.3 to 62.7 for Zn and 111 to 293 for Fe in mg.d–1 per person, Using these data, the cycle of the metals in our daily life was discussed in relation to land application of sewage sludge. |
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