Scientific analysis of the harmless disposal of heavy metal-contaminated farmland

Recently, in a rice field in Wangcheng District, Changsha, staff from Hunan Yongqing Environmental Protection Group were adjusting atmospheric deposition collection vessels.

A comprehensive report from the Sannong Direct Express: In 2014, China launched comprehensive restoration and treatment of heavy metal-contaminated farmland, and 1.7 million mu of farmland in the Chang-Zhu-Tan (Changsha, Zhuzhou, Xiangtan) area of Hunan Province became the first batch of pilot areas. Areas designated as "alternative planting zones" in the pilot are currently mainly treated through alternative crop planting or fallowing. For moderately and lightly contaminated areas, the VIP+n restoration and treatment technical model is being gradually promoted for treatment. During treatment, for grain with excessive heavy metals, a harmless disposal model of "purchase by designated enterprises, storage in designated warehouses, special subsidies, dedicated disposal, and closed-loop operation" is implemented to prevent substandard grain from entering the market.

Photo by Xinhua News Agency reporter Li Ga