Soil mercury removal device based on adsorbent extraction

• Main Authors: LI WENFENG, XIE SHIBING, GAO QINGYING, NI ZHIZHI, ZHANG HUI, CHEN JINGJING, ZHANG WEIYI, WANG LIANG, YANG SU-MI, ZHANG JING, LIN DINGPENG
• Format: Patent
• Language: Chinese; English
• Published: 05.07.2022
• Subjects: DISPOSAL OF SOLID WASTE; PERFORMING OPERATIONS; RECLAMATION OF CONTAMINATED SOIL; RECLAMATION OF CONTAMINED SOIL SOIL; TRANSPORTING

According to the technical scheme, the soil mercury removal device is characterized by comprising a shed body, the shed body is connected with a negative pressure extraction mechanism and a heating mechanism buried in soil, the negative pressure extraction mechanism is connected with a shell, and an adsorption pipe internally provided with an adsorbent is detachably connected into the shell. The method has the following beneficial effects that the sealed shed body is built on the land needing mercury removal, the heating mechanism is buried in the soil, a neutralizing agent or other auxiliary agents are sprayed, mercury ions in the soil are converted into mercury or an easily-evaporated mercury compound, the heating mechanism is used for heating, the mercury is evaporated, and the mercury removal effect is achieved. The mercury vapor enters the adsorption pipe through the through hole and the strip-shaped hole, and the adsorbent adsorbs the mercury vapor, so that the mercury in the soil can be removed, and th