改善土壤(污泥)鉛、銅含量之方法

專利類型

發明

專利國別 (專利申請國家)

中華民國

專利申請案號

094103143

專利證號

I280952

專利獲證名稱

改善土壤(污泥)鉛、銅含量之方法

專利所屬機關 (申請機關)

朝陽科技大學

獲證日期

2007/05/11

技術說明

本發明係提供一種改善土壤(污泥)重金屬含量之方法，其係可維持pH中性且具提升去除土壤 (污泥)重金屬效率，其主要實施方法係將陽、陰二電極安置在操作液儲存槽中且不與土壤(污 泥)直接接觸，並對處理土壤(污泥)施加一直流電壓，而操作液以具有高pH緩衝且低毒性的電 解質液混合適當濃度的螯合劑為之；同時，操作液環繞於處理土壤（污泥）周圍，藉由輸送 裝置將陰極溶液輸送至陽極，以形成一循環系統，藉此，於去除土壤(污泥)重金屬過程中， 可保持土壤(污泥)之中性pH，並加速重金屬之移除效率，而移出之重金屬可電鍍於陰極上， 而完成重金屬污染土壤（污泥）之復育。 The invention is to provide a method to remediate the heavy metal contaminated soils (sludges). The major feature is to enhance the removal efficiency of heavy metal from soils (sludges) under neutral pH condition. The execution method is to install the cathode and anode in the storage area of operational solution but not contact with soils (sludges). The DC current is employed into the electrodes and operational solution is one kind of chelating agent with high pH buffering capacity and low toxicity. Simultaneously, the operational solution is transported from cathode to anode, which constructs a circulation system. Therefore, the soils (sludges) can obtain neutral pH condition and enhance the removal efficiency of heavy metal. In addition, the heavy metal can be electroplated on the cathode and recover it.

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04-23323000

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