JP4600985B2 - 塩類を含む土の除塩方法 - Google Patents
塩類を含む土の除塩方法Info
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- JP4600985B2 JP4600985B2 JP2005022319A JP2005022319A JP4600985B2 JP 4600985 B2 JP4600985 B2 JP 4600985B2 JP 2005022319 A JP2005022319 A JP 2005022319A JP 2005022319 A JP2005022319 A JP 2005022319A JP 4600985 B2 JP4600985 B2 JP 4600985B2
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- soil
- water
- salt
- soil containing
- salt removal
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Description
特に、土を粒状化することによって透水性を改善し、造粒物の水洗時間を短くし、効率よく除塩を行うことにより、短時間での除塩を可能にする。
また、水洗は湾内や汽水域の通常の浚渫土であれば造粒物体積の5〜10倍程度の水で除塩可能である。
図4によれば残存率はいずれの場合も風乾のものより加熱したものの残存率(安定性)が高い。
除塩は、プラスチック製の鉢に300mlの造粒物を入れ、蒸留水を300mlづつ、1時間毎に計6回水洗した。なお、鉢の底には回収トレーを置き、散水毎に洗浄水を回収しECを測定した。測定結果を図5に示す。図5によれば、第1回目以後の測定からEC値は急速に低下し、第6回目時点では市販の栽培土の未処理状態以下に低下している(塩類が除去されている)ことが確認できる。
Claims (3)
- 塩類を含む土を除塩する方法において、あらかじめ水分が調整され又は含水率40〜80%の土を造粒して、加熱によって水分を造粒物表面より浸出させて蒸発させ、土に含まれる塩類を造粒物表面に析出させるとともに造粒物が水に浸った際に粒状を保持できる安定性を前記造粒物に付与した後、水洗することによって除塩を行う塩類を含む土の除塩方法。
- 土が有機物を含む土である請求項1の塩類を含む土の除塩方法。
- 造粒前の土に有機物又は有機物を含む土を添加混入する請求項1又は2の塩類を含む土の除塩方法。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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JP2005022319A JP4600985B2 (ja) | 2005-01-28 | 2005-01-28 | 塩類を含む土の除塩方法 |
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JP2005022319A JP4600985B2 (ja) | 2005-01-28 | 2005-01-28 | 塩類を含む土の除塩方法 |
Publications (2)
Publication Number | Publication Date |
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JP2006205096A JP2006205096A (ja) | 2006-08-10 |
JP4600985B2 true JP4600985B2 (ja) | 2010-12-22 |
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JP2005022319A Active JP4600985B2 (ja) | 2005-01-28 | 2005-01-28 | 塩類を含む土の除塩方法 |
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JP (1) | JP4600985B2 (ja) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4608658B2 (ja) * | 2006-02-20 | 2011-01-12 | 国立大学法人島根大学 | ヘドロ処理方法 |
CN111613358B (zh) * | 2020-04-07 | 2023-06-13 | 福建福清核电有限公司 | 一种更为经济的核电站核岛废液处理控制方法 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH05317892A (ja) * | 1992-05-21 | 1993-12-03 | Mitsuboshi Belting Ltd | 塩類含有土壌の除塩方法 |
JPH10273094A (ja) * | 1997-03-28 | 1998-10-13 | Toshiba Corp | ヘドロの処理船 |
JP2000167595A (ja) * | 1998-12-04 | 2000-06-20 | Kurita Water Ind Ltd | 有機性廃棄物の処理方法 |
-
2005
- 2005-01-28 JP JP2005022319A patent/JP4600985B2/ja active Active
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH05317892A (ja) * | 1992-05-21 | 1993-12-03 | Mitsuboshi Belting Ltd | 塩類含有土壌の除塩方法 |
JPH10273094A (ja) * | 1997-03-28 | 1998-10-13 | Toshiba Corp | ヘドロの処理船 |
JP2000167595A (ja) * | 1998-12-04 | 2000-06-20 | Kurita Water Ind Ltd | 有機性廃棄物の処理方法 |
Also Published As
Publication number | Publication date |
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JP2006205096A (ja) | 2006-08-10 |
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