Heavy metal-contaminated soil leaching remediation and leaching liquid regeneration integrated device and method

• Main Authors: DING LIANG, QU CHANGSHENG, ZHANG MANCHENG, WANG SHUI
• Format: Patent
• Language: Chinese; English
• Published: 11.05.2018
• Subjects: DISPOSAL OF SOLID WASTE; PERFORMING OPERATIONS; RECLAMATION OF CONTAMINATED SOIL; RECLAMATION OF CONTAMINED SOIL SOIL; TRANSPORTING

The invention discloses a heavy metal-contaminated soil leaching remediation and leaching liquid regeneration integrated device and method. The device comprises a leaching tank, a first peristaltic pump, a leacheate electrochemical treatment tank, a second peristaltic pump, a leacheate storage tank and a third peristaltic pump, and the above parts are orderly connected to form a loop through communication pipes. The leacheate electrochemical treatment tank is communicated with the leacheate storage tank through a pipe. The pipe is provided with a forth peristaltic pump. A heavy metal ion adsorption electrode and a counter electrode are arranged in the leacheate electrochemical treatment tank. The adsorption electrode and the counter electrode are connected to a power supply. The top of theleaching tank is provided with a nozzle connected to the third peristaltic pump. The device utilizes a leacheate circulation system and an electrode regeneration system, well realizes the recycling of the leacheate and the e