Prospects of using flue gas desulfurization gypsum to ameliorate saline-alkaline soils
ZHAO Yonggan1,2,3, WANG Shujuan1,2,3, LI Yan1,2,3, LIU Jia2,4, ZHUO Yuqun1,2,3
1. Department of Energy and Power Engineering, Tsinghua University, Beijing 100084, China; 2. Beijing Engineering Research Center for Ecological Restoration and Carbon Fixation of Saline-alkaline and Desert Land, Beijing 100084, China; 3. Shanxi Research Institute for Clean Energy, Tsinghua University, Taiyuan 030032, China; 4. Tsinghua Agriculture Co., Ltd., Beijing 100084, China
Abstract：The application of flue gas desulfurization (FGD) gypsum to ameliorate saline-alkaline soils not only provides a new use for FGD gypsum, but also provides a new method for improving saline-alkaline soils. This paper reviews the development of this technology for ameliorating saline-alkaline soils over the past 20 years including the basic theory, key technologies, short and long-term effects, environmental safety and industrialized applications of treating saline-alkaline soils with FGD gypsum. This paper also presents the future research needs to address current problems for large-scale applications. Efficient and safe treatments of large saline-alkaline soil areas using FGD gypsum should reduce the application rate of FGD gypsum per unit land area, increase long-term positioning of test points and formulate national standards for agricultural application of FGD gypsum.
赵永敢, 王淑娟, 李彦, 刘嘉, 禚玉群. 脱硫石膏改良盐碱土技术发展历程与展望[J]. 清华大学学报（自然科学版）, 2022, 62(4): 735-745.
ZHAO Yonggan, WANG Shujuan, LI Yan, LIU Jia, ZHUO Yuqun. Prospects of using flue gas desulfurization gypsum to ameliorate saline-alkaline soils. Journal of Tsinghua University(Science and Technology), 2022, 62(4): 735-745.
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2022, Vol. 62 
