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Solidification treatment method for soils contaminated with soil modifiers, soil solidifiers and heavy metals
Solidification treatment method for soils contaminated with soil modifiers, soil solidifiers and heavy metals
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机译：土壤改良剂，土壤固化剂和重金属污染土壤的固化处理方法
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摘要
PROBLEM TO BE SOLVED: To provide a soil modification material capable of bringing pH of a soil contaminated by heavy metal or the like close to neutral, for example keeping the pH in a range of 5.8 to 8.6, which is an effluent standard, by applying the same to the soil.SOLUTION: There is provided a soil modification material for bringing pH of a soil contaminated by heavy metal or the like close to neutral by applying the same to the soil, containing gypsum hemihydrate of 40 to 93 mass%, ferrous sulfate of 5 to 50 mass% and lime of 2 to 35 mass% and having fluorine elution amount of 0.8 mg/L or less when an elution solution of the soil modification material is measured by a method according to appendix 6 "measurement method of fluorine" of Showa 46, December 28th, Environment Agency notification No.59, "Environmental Standard regarding to Water Contamination" or "JIS K 0102:2013 (industrial waste water test method".SELECTED DRAWING: None
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机译：解决的问题：提供一种土壤改性材料，该改性材料能够通过施用而使被重金属或类似物污染的土壤的pH接近中性，例如将pH保持在5.8至8.6的范围内，这是废水标准。解决方案：提供了一种土壤改性材料，其通过将含有40至93质量％的石膏半水合物的亚铁施用到土壤上，使被重金属等污染的土壤的pH值接近中性。当通过附录6“氟的测量方法”测量土壤改性材料的洗脱溶液时，硫酸盐含量为5至50质量％，石灰含量为2至35质量％，氟洗脱量为0.8 mg / L以下”，昭和46年12月28日发布，环保局第59号通知，“有关水污染的环境标准”或“ JIS K 0102：2013（工业废水测试方法”）。
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