Environmental friendly remediation and recycling method for contaminated soil by combination of Bioleaching and Bioremediation

生物浸出与生物修复相结合的污染土壤环保修复与资源化方法

• 批准号: 18510068
• 负责人: KAMIYA Osamu
• 金额: $ 2.56万
• 依托单位: Akita University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2006
• 资助国家: 日本
• 起止时间: 2006 至 2007
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-18510068/
• 关键词: Environment Technology; Environmental pollution; Valorization; Soil; Microbe; Acid Drainage; Ammonia generation bacterium; Neutralizing action; 土壤圏現象; チュニジア; リン酸; 農業肥料

A basic experiment was executed aiming at remediation of the polluted soil and valorization for the resource. Concretely, the piling up residue polluted with the sulfuric acid exhausted by the system phosphoric acid agricultural fertilizer factory in the Sfax city of Republic of Tunisia is neutralized and gypsum (CaSO4) that is the resource is extracted. The flotation method that was the mine technology was able to be used to take out high purity White gypsum. It succeeded in the improvement of the collection rate of gypsum by addition of the sulfuric acid aluminum as the flocculent of the flotation. When the gypsum fineness was examined, it was confirmed to reach the fineness that was able to be used as a setting retarder of cement.The residue is a strong acid of about pH1.8 according to the sulfuric acid of the contaminant. A strong acid solution that washed the residue executed neutralizing with calcium carbonate. It became pH6 and possible to neutralize by adding the calcium carbon … More ate of about 3g to aqueous acids obtained from the residue sample 100g.In addition, the possibility of neutralizing by the action of the microorganism was examined. Three kinds of bacilli that generated ammonia, Rhizopus delmer, Aspergillus niger, and MJKC25 were used. First of all, the one that refinement water 100 ml was added to the residue 100 g was filtered, it planted, the above-mentioned bacillus was applied to the LB agar medium including the top water, and it observed it. Living and the neutralizing action of each bacterium in the strong acid were confirmed from the change of the color of methylic red of the pH indicator into yellow from red. When the initial pH is from 4.9 to 6.3, the neutralizing action was confirmed from the rise of the pH to 7 or 8 at the period about the four day. On the other hand, neutralizing was able hardly to be confirmed when the initial pH was near 3. It was verified that the neutralizing processing by the bacillus was possible from the residue in the above-mentioned for the drain of pH 5 or more Less

针对污染土壤的修复和资源的有价化进行了基础实验。具体地说，对突尼斯共和国斯法克斯市系统磷酸农用化肥厂排放的硫酸污染的堆渣进行中和，提取作为资源的石膏(CaSO4)。采用浮选法即矿山技术，可以提取出高纯度的白石膏。添加硫酸铝作为浮选的絮凝剂，成功地提高了石膏的捕收率。通过对石膏细度的检测，确定石膏细度达到了可以用作水泥缓凝剂的细度，根据污染物的硫酸，残渣是一种pH值在1.8左右的强酸。洗涤残渣的强酸溶液与碳酸钙中和。它的pH值变为6，可以通过添加钙碳…来中和从100g的残渣样品中获得了更多的约3g的水相酸，此外，还考察了微生物作用下中和的可能性。使用了三种产氨的细菌：德尔默根霉、黑曲霉和MJKC25。首先，将100g残渣中加入精制水100ml的菌株过滤后种植，将上述芽孢杆菌应用于含上清水的LB琼脂培养基中，观察其生长情况。PH指示剂甲基红颜色由红色变为黄色，证实了各细菌在强酸中的存活和中和作用。当初始pH为4.9~6.3时，从pH升高到7~8时，约4天左右即可确认中和作用。另一方面，当初始pH接近3时，几乎不能确认中和。证实了当排水pH小于等于5时，从上述残留物中可以进行芽孢杆菌的中和处理

项目成果

汚染土壌の浄化と資源リサイクル

污染土壤净化及资源循环利用

• 发表时间: 2007
• 期刊: 秋田大学ベンチャービジネスラボラトリー平成18年度年報
• 作者: K.;Oe;R.;Tomimatsu;T.;Oshima;Y.;Baba;神谷修・柴山敦・葛野栄一・植澤陽一・住川大樹
• 通讯作者: 神谷修・柴山敦・葛野栄一・植澤陽一・住川大樹

Valorization and neutralizing processing of agricultural fertilizer industrial residue.

农肥工业废渣的增值及中和处理。

• 发表时间: 2007
• 期刊: Conference of Akita University VBL in 2007
• 作者: Daiki Umikawa;Eiichi Kuzuno;Atushi Shibayama;Yasuyuki Miyano and Osmau Kamiya
• 通讯作者: Yasuyuki Miyano and Osmau Kamiya

農業肥料工業残渣の有効利用と中和処理

农肥工业残留物的有效利用和中和

• 发表时间: 2008
• 期刊: 秋田大学ベンチャービジネスラボラトリー平成19年度年報
• 作者: K;Prabakar;T;Takahashi;T;Nezuka;K;Takahashi;T;Nakashima;Y;Kubota;A. Fujishima;住川大樹・葛野栄一・柴山敦・宮野泰征・神谷修
• 通讯作者: 住川大樹・葛野栄一・柴山敦・宮野泰征・神谷修

農業肥料工場より排出された工業残渣の有効利用

农肥厂排放的工业废渣的有效利用

• 发表时间: 2007
• 作者: K. Ohe;T. Oshima;Y. Baba;M. Shimikzu;Y. Mivake;T. Horikawa;H. Yokota;住川大樹・植澤陽一・葛野栄一・柴山敦・宮野泰征・神谷修
• 通讯作者: 住川大樹・植澤陽一・葛野栄一・柴山敦・宮野泰征・神谷修

Valorization and neutralizing processing of agricultural fertilizer industrial residue

农肥工业废渣的增值中和处理

• 发表时间: 2007
• 期刊: Annual report 2007 of Akita University VBL
• 作者: Daiki Umikawa;Eiichi Kuzuno;Atushi Shibayama;Yasuyuk Miyano and Osmau Kamiya
• 通讯作者: Yasuyuk Miyano and Osmau Kamiya