Study on Alkali Soils Reclamation with By-product from Flue Gas Desulfurization
The objective of this paper is to research the change of soil physical and chemical properties with different amount of by-product from flue gas desulfurization (FGD) applied. We investigated the effect of alkali soils reclamation using by-product from FGD and searched for the optimal quantity of soil amendment due to the improvement of alkali soils. The effect of soil reclamation was observed by using four types of soil samples from Yinchuan of Ningxia and Ordos of Inner Mongolia at four levels (i.e. the amount of by-product from FGD is 0.5wt%, 1.0wt%, 1.5wt%, and 2.0wt %). As a result, soil pH and ESP decreased and this result indicates that by-product from FGD has the effect of improving alkali soil physical and chemical properties. In the certain range (0-2.0wt %), the amelioration effect of alkali soil presents positive correlation with the applied amount of by-product from FGD. If the amount exceeds the range, the better effect of the soil reclamation could not be attained and a great deal of salts will be accumulated in soil and it will be more difficult to improve the alkali soil. In terms of this experiment result, the optimum range of applied amount is 0.5wt%-1.0wt%.
flue gas desulfurization CaSO4 soil reclamation alkali soil
LI Guangbi WANG Chang Yuji SAKAI XIA Lin LU Xiaocui
College of Marine Science and Engineering,Tianjin University of Science & Technology,Tianjin 300457, College of Marine Science and Engineering,Tianjin University of Science & Technology,Tianjin 300457, Department of Environmental Chemical Engineering,Kogakuin University,Tokyo 192-0015,Japan
国际会议
2009 International Symposium on Environmental Science and Technology(2009环境科学与技术国际会议)
上海
英文
1983-1987
2009-06-02（万方平台首次上网日期，不代表论文的发表时间）