JP2020163265A - 汚染土壌の分級洗浄処理方法 - Google Patents
汚染土壌の分級洗浄処理方法 Download PDFInfo
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/62—Plastics recycling; Rubber recycling
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Abstract
Description
Fs 受入分別施設
Fc 分級洗浄施設
BM 破袋機
SV1,SV2 篩機
BC1〜BC4 ベルトコンベア
WM 洗浄処理装置
CM 分級処理装置
DM 分離処理装置
DHM 脱水処理装置
DWM 排水処理装置
S1〜S4 土壌
Sc 除去土壌
Sp 浄化済等土壌
Sd 脱水ケーキ
Pf 細粒分
Pc 粗粒分
Ph 汚染物質
Claims (10)
- 高分子吸水性樹脂を含む汚染土壌の分級洗浄処理の開始時に、前記汚染土壌に膨潤抑制剤を添加することを特徴とする汚染土壌の分級洗浄方法。
- 前記膨潤抑制剤の添加量を変えることにより、前記分級洗浄処理において篩を通過する土粒子の量および前記篩を通過せず残留する土粒子の量を制御することを特徴とする請求項1記載の汚染土壌の分級洗浄方法。
- 前記汚染土壌が除去土壌であり、前記除去土壌のうち、汚染物質濃度が相対的に高い除去土壌に添加する前記膨潤抑制剤の添加量を、前記汚染物質濃度が相対的に低い除去土壌に添加する前記膨潤抑制剤の添加量よりも多くすることを特徴とする請求項1または2記載の汚染土壌の分級洗浄方法。
- 前記膨潤抑制剤は塩化カルシウムまたは硫酸第一鉄七水和塩を含むことを特徴とする請求項1〜3のいずれか1項に記載の汚染土壌の分級洗浄方法。
- 前記膨潤抑制剤は塩化カルシウムを含み、前記塩化カルシウムの添加量は、0.25〜5wt%であることを特徴とする請求項1記載の汚染土壌の分級洗浄方法。
- 前記塩化カルシウムの添加量は、1〜5wt%であることを特徴とする請求項5記載の汚染土壌の分級洗浄方法。
- 前記膨潤抑制剤は硫酸第一鉄七水和塩を含み、前記硫酸第一鉄七水和塩の添加量は、0.1〜5wt%であることを特徴とする請求項1記載の汚染土壌の分級洗浄方法。
- 前記硫酸第一鉄七水和塩の添加量は、0.5〜3wt%であることを特徴とする請求項7記載の汚染土壌の分級洗浄方法。
- 前記膨潤抑制剤は塩化カルシウムを含み、前記汚染物質濃度が相対的に低い除去土壌に添加する塩化カルシウムの添加量は、0.25〜1wt%であり、前記汚染物質濃度が相対的に高い除去土壌に添加する塩化カルシウムの添加量は、1〜5wt%であることを特徴とする請求項3記載の汚染土壌の分級洗浄方法。
- 前記膨潤抑制剤は硫酸第一鉄七水和塩を含み、前記汚染物質濃度が相対的に低い除去土壌に添加する硫酸第一鉄七水和塩の添加量は、0.1〜0.5wt%であり、前記汚染物質濃度が相対的に高い除去土壌に添加する硫酸第一鉄七水和塩の添加量は、0.5〜3wt%であることを特徴とする請求項3記載の汚染土壌の分級洗浄方法。
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Cited By (1)
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CN112718832A (zh) * | 2020-12-17 | 2021-04-30 | 徐州云乐环保设备科技有限公司 | 一种重金属污染土壤的自分散修复方法 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2006328321A (ja) * | 2005-05-30 | 2006-12-07 | Nippon Shokubai Co Ltd | 含水土壌の粒状化方法および含水土壌処理剤 |
JP2013092428A (ja) * | 2011-10-25 | 2013-05-16 | Shimizu Corp | 放射性物質汚染土壌の洗浄処理方法 |
JP2019021336A (ja) * | 2018-10-03 | 2019-02-07 | パイオニア株式会社 | サーバ装置、端末装置、情報提示システム、情報提示方法、情報提示プログラムおよび記録媒体 |
JP2019103989A (ja) * | 2017-12-14 | 2019-06-27 | 清水建設株式会社 | 汚染土壌の洗浄分級処理方法 |
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Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
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JP2006328321A (ja) * | 2005-05-30 | 2006-12-07 | Nippon Shokubai Co Ltd | 含水土壌の粒状化方法および含水土壌処理剤 |
JP2013092428A (ja) * | 2011-10-25 | 2013-05-16 | Shimizu Corp | 放射性物質汚染土壌の洗浄処理方法 |
JP2019103989A (ja) * | 2017-12-14 | 2019-06-27 | 清水建設株式会社 | 汚染土壌の洗浄分級処理方法 |
JP2019021336A (ja) * | 2018-10-03 | 2019-02-07 | パイオニア株式会社 | サーバ装置、端末装置、情報提示システム、情報提示方法、情報提示プログラムおよび記録媒体 |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN112718832A (zh) * | 2020-12-17 | 2021-04-30 | 徐州云乐环保设备科技有限公司 | 一种重金属污染土壤的自分散修复方法 |
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