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1. 发明专利

JP2003340421A Method for washing contaminated soil 有权
标题翻译：洗涤污染土壤的方法
公开(公告)号：JP2003340421A
公开(公告)日：2003-12-02
申请号：JP2002147857
申请日：2002-05-22
申请人： Hitachi Zosen Corp , Maeda Corp , Zenitaka Corp , 前田建設工業株式会社 , 日立造船株式会社 , 株式会社銭高組
发明人： ABE SATOSHI , SAEKI TEI , TAKATSU TADASHI , UEDA KOZO , SATO NOBUKAZU , YASUDA KENJI , FUKATSU REI , HAMANO SHUJI , OGUCHI FUKASHI , NODA KENJI , YAMAMOTO TATSUO , TAKAHASHI KAZUO , KOGO MASAHIRO
IPC分类号： B09C1/02 , B09B3/00 , B09C1/00 , B09C1/04 , B09C1/08
摘要： PROBLEM TO BE SOLVED: To provide a method for washing contaminated soil, by which the contaminated soil can be washed efficiently and which can cope with various contaminants.
SOLUTION: This method comprises a step to feed the soil contaminated with contaminants such as heavy metals and organic compounds to a centrifugal separator together with water and separate the contaminated soil into contaminant-containing soil and contaminant-free soil, this step is carried out at least twice or more times, a step to crush lumps of the soil contaminated with contaminants, a step to add water to the soil contaminated with contaminants, a step to remove the water content of the contaminant-containing soil separated by another centrifugal separator, and a step to precipitate minute particles contained in the removed water content.
COPYRIGHT: (C)2004,JPO
摘要翻译：要解决的问题：提供一种洗涤污染土壤的方法，通过该方法可以有效地清洗污染的土壤，并且可以处理各种污染物。
解决方案：该方法包括将污染物如重金属和有机化合物污染的土壤与水一起送入离心分离器的步骤，将污染土壤分离为含污染土壤和无污染土壤，该步骤为进行至少两次或更多次，一步一步地粉碎被污染物污染的土壤块，向被污染物污染的土壤中添加水的步骤，一个步骤，去除由另一个离心分离的含污染土壤的含水量分离器，以及沉淀除去的水分含有的微粒子的步骤。版权所有（C）2004，JPO

2. 发明专利

JP2005040764A Cleaning method of oil polluted soil 审中-公开
标题翻译：油污染土壤清洁方法
公开(公告)号：JP2005040764A
公开(公告)日：2005-02-17
申请号：JP2003280107
申请日：2003-07-25
申请人： Hitachi Zosen Corp , Maeda Corp , Toyo Constr Co Ltd , Zenitaka Corp , 前田建設工業株式会社 , 日立造船株式会社 , 東洋建設株式会社 , 株式会社錢高組
发明人： OGUCHI FUKASHI , NODA KENJI , YAMAMOTO TATSUO , TAKAHASHI KAZUO , KOGO MASAHIRO , ABE SATOSHI , SAEKI TEI , TAKATSU TADASHI , SUGIMOTO ICHIRO , UEDA KOZO , FUKATSU REI , HAMANO SHUJI , IWAMOTO TOMOHITO , KAWANISHI RYUICHI , MINEMATSU ASASHIGE , MIYAHARA KAZUHITO , BABA SHINTARO
IPC分类号： E02F7/00 , B03B5/00 , B03B5/02 , B09C1/00 , B09C1/04
摘要： PROBLEM TO BE SOLVED: To provide a cleaning method of oil polluted soil capable of efficiently removing heavy oil and high concentration oil by performing multi-stage processing including agitation washing in oil polluted oil.
SOLUTION: On the first process, the oil polluted soil is fed into an agitation apparatus 3 (for example, a pan type or pug mill type mixer) having a rotary blade, is mixed with water and is agitated by the rotary blade. On the succeeding process, slurry formed by mixing and agitating the oil polluted soil and water is transferred from the agitation apparatus to a vibration apparatus 4 and, by applying vibrations, is screened into the water containing fine particles to which the oil is attached and coarse particles. Thereupon, shower water is sprayed to the slurry and, at the same time, drainage is performed. On the subsequent process, the coarse particles screened from the vibration apparatus is transferred to a rinsing apparatus 5 (for example, a spiral classifier), clean water is supplied and the oil is floated up from the surface of the coarse particles. Thereupon, the shower water is sprayed to the coarse particles and, at the same time, drainage is performed.
COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：提供一种能够通过进行包括在油污染油中的搅拌洗涤的多级处理来有效地除去重质油和高浓度油的油污染土壤的清洁方法。解决方案：在第一种方法中，将油污染的土壤进料到具有旋转叶片的搅拌设备3（例如锅式或搅拌式混合机）中，与水混合并被旋转叶片。在后续处理中，通过混合和搅拌油污染的土壤和水形成的浆料从搅拌装置转移到振动装置4，并通过施加振动将其筛分入含有油的细颗粒的水中并且粗糙粒子。因此，将淋浴水喷洒到浆料上，同时进行排水。在随后的处理中，将从振动装置筛选出的粗粒子转移到冲洗装置5（例如，螺旋分选机）中，供给清洁水并从粗粒子的表面浮起油。于是，将淋浴水喷洒到粗颗粒上，同时进行排水。版权所有（C）2005，JPO＆NCIPI

3. 发明专利

JP2004050029A Method for detoxifying contaminated soil containing heavy metal compound 有权
公开(公告)号：JP2004050029A
公开(公告)日：2004-02-19
申请号：JP2002210471
申请日：2002-07-19
申请人： Hitachi Zosen Corp , 日立造船株式会社
发明人： YASUDA KENJI , HAMANO SHUJI , UEDA KOZO , FUKATSU REI , IWAMOTO TOMOHITO
IPC分类号： B09C1/02 , B09C1/06 , B09C1/08 , A62D3/00
摘要： PROBLEM TO BE SOLVED: To provide a method for detoxifying contaminated soil containing heavy metal compounds which efficiently removes heavy metals contained in the soil contaminated with the heavy metal compounds with relatively low energy and at a lower cost.
SOLUTION: Predetermined amount of silicone oil is mixed with the contaminated soil containing the heavy metal compounds, and the mixture is heated to not less than 600°C in an inert gas stream to decompose the silicone oil. Silicon (Si) caused by decomposition of the silicone oil reduces the heavy metal compounds in the contaminated soil to form single heavy metals or oxides thereof and vapor of these single heavy metals or oxides thereof is evaporated and removed from the contaminated soil. When the heavy metal compound is an arsenic compound, the arsenic oxide is formed by the reduction thereof and the vapor of the arsenic oxide is evaporated, and when the heavy metals are a lead, zinc or cadmium compound, single metals of these substances are formed by reduction thereof and the vapor of the single metals is evaporated and removed.
COPYRIGHT: (C)2004,JPO

4. 发明专利

JP2004025087A Soil decontamination apparatus 有权
公开(公告)号：JP2004025087A
公开(公告)日：2004-01-29
申请号：JP2002187432
申请日：2002-06-27
申请人： Hitachi Zosen Corp , 日立造船株式会社
发明人： YASUDA KENJI , UMEMURA SHOZO , HAMANO SHUJI , UEDA KOZO , FUKATSU REI
IPC分类号： F23G5/027 , B09C1/06 , F23G5/50 , F23G7/14
摘要： PROBLEM TO BE SOLVED: To provide a method for applying a fluidized bed apparatus with a higher volume efficiency as compared to the rotation type apparatus applied for heating methods and washing methods as the soil decontamination apparatus in the conventional practice to the treatment of soil having a broad particle size distribution.
SOLUTION: On the decontamination of contaminated soil by means of a heating method, the soil is charged into decontamination vessels 6, 6', gas for decontamination such as heating air, inactive air and reducing gas is allowed to flow upward from the under part of the decontamination vessels and the soil is made to be in a fluidized state, the contaminant existing near the surface of soil particles is burned or is thermally decomposed and the flow speed in the vessel of the gas for decontamination is periodically changed in a specified range.
COPYRIGHT: (C)2004,JPO

5. 发明专利

JP2003062556A Method for removing arsenic compound in soil and removing chemical of the same 审中-公开
标题翻译：在土壤中去除芳香化合物并除去其中化学物质的方法
公开(公告)号：JP2003062556A
公开(公告)日：2003-03-04
申请号：JP2001257108
申请日：2001-08-28
申请人： Hitachi Zosen Corp , 日立造船株式会社
发明人： HAMANO SHUJI , UEDA KOZO , FUKATSU REI
IPC分类号： B09C1/02 , B09B3/00 , B09C1/06 , B09C1/08 , C09K3/00
摘要： PROBLEM TO BE SOLVED: To provide a method for decomposing and removing an indecomposasble arsenic compound from soil and a removing chemical of the same.
SOLUTION: Soil contaminated with arsenic is heated after adding a reducing agent thereto. It is preferred that the soil is heated under a low-oxygen concentration condition. A nitrogen atmosphere is preferred as the low-oxygen concentration condition. The reducing agent used is selected from the group consisting of heavy oil, coal, coke, salts of low oxyacids (NaH
2 PO
2 , Na
2 S
2 O
3 and the like), hydrides (LiAlH
4 and the like), hydrazines, diimides, aldehydes and saccharaides. It is preferred that, as the reducing agent, saccharaides such as starch are easily available at cheap prices.
COPYRIGHT: (C)2003,JPO
摘要翻译：要解决的问题：提供一种从土壤中分解除去不配成分的砷化合物的方法及其除去的化学物质。解决方案：加入还原剂后，加入砷污染土壤。优选在低氧浓度条件下加热土壤。作为低氧浓度条件，优选氮气氛。所用的还原剂选自重油，煤，焦炭，低含氧酸的盐（NaH 2 PO 2，Na 2 S 2 O 3等），氢化物（LiAlH 4等），肼，二酰亚胺，醛和蔗糖。优选的是，作为还原剂，蔗糖如淀粉容易以便宜的价格获得。

6. 发明专利

JP2004025086A Decontamination method of contaminated soil 有权
公开(公告)号：JP2004025086A
公开(公告)日：2004-01-29
申请号：JP2002187428
申请日：2002-06-27
申请人： Hitachi Zosen Corp , 日立造船株式会社
发明人： YASUDA KENJI , UMEMURA SHOZO , HAMANO SHUJI , UEDA KOZO , FUKATSU REI
IPC分类号： B09C1/02 , B03B5/00 , B09B3/00 , B09C1/08
摘要： PROBLEM TO BE SOLVED: To provide a method for applying a fluidized bed apparatus with a higher volume efficiency as compared to the rotation type apparatus applied for heating methods and washing methods as the soil decontamination apparatus in the conventional practice to the treatment of soil having a broad particle size distribution.
SOLUTION: On the decontamination of contaminated soil by means of a washing method, the soil is charged into washing vessel 3, washing fluid is allowed to flow upward from the under part of the washing vessel and the soil is made to be in a fluidized state, the contaminant existing near the surface of soil particles is washed and the flow speed in the vessel of the washing fluid is periodically changed within a specified range.
COPYRIGHT: (C)2004,JPO

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