Salt-Affected Soil Amelioration with Flue Gas Desulfurization By-Products and Waste Gypsum Board in Tianjin, China

2011 ◽  
Vol 44 (10) ◽  
pp. 750-756 ◽  
Author(s):  
Yuji Sakai ◽  
Shunrong Ren ◽  
Chang Wang ◽  
Masayoshi Sadakata
Keyword(s):  
Flue Gas ◽  
Flue Gas Desulfurization ◽  
Soil Amelioration ◽  
Gypsum Board ◽  
Salt Affected Soil ◽  
Waste Gypsum ◽  
By Products

Band application of flue gas desulfurization gypsum improves sodic soil amelioration

2021 ◽  
Vol 298 ◽  
pp. 113535
Author(s):  
Wenchao Zhang ◽  
Wenxin Zhang ◽  
Shujuan Wang ◽  
Jia Liu ◽  
Yan Li ◽  
...  
Keyword(s):  
Flue Gas ◽  
Flue Gas Desulfurization ◽  
Soil Amelioration ◽  
Sodic Soil

scholarly journals Theoretical Study on the Production of Environment-Friendly Recycled Cement Using Inorganic Construction Wastes as Secondary Materials in South Korea

2018 ◽  
Vol 10 (12) ◽  
pp. 4449 ◽  
Author(s):  
Jihoon Kim ◽  
Sungho Tae ◽  
Rakhyun Kim
Keyword(s):  
Alternative Fuels ◽  
Cement Industry ◽  
Firing Process ◽  
Gypsum Board ◽  
Environment Friendly ◽  
X Ray ◽  
Mineral Components ◽  
Waste Gypsum ◽  
Cement Manufacturing ◽  
By Products

The cement industry endeavors to reduce CO2 emissions from cement manufacturing by utilizing industrial by-products as alternative fuels and developing secondary concrete products from construction wastes. With these efforts, the cement industry is attempting to become more eco-friendly and reduce environmental load. This study analyzed the possibility of using inorganic construction wastes to produce environmentally friendly recycled cement using the process of proportioning. To this end, the types and production trends of recyclable construction wastes and previous studies on the development of recycled cement using such construction wastes were analyzed. Based on this analysis, recyclable inorganic construction wastes were selected, and real waste was collected. The chemical composition of each inorganic construction waste was analyzed using X-ray fluorescence, and the composition of ordinary commercial cement was used as the baseline. After the collected inorganic construction wastes were mixed, they were fired using the Bogue formula. The mineral components of clinker, which was generated from the firing process, were predicted and analyzed. Waste gypsum board and ceiling materials were shown to contain large amounts of CaO, which could substitute limestone—a key component of cement. These results suggested that if the limestone content was greater than 85 wt %, mixing inorganic construction wastes in appropriate proportions could be used to develop various types of Portland cement.

Development Status of Resourceable Technology of Flue Gas Desulphurization

2014 ◽  
Vol 1073-1076 ◽  
pp. 775-778
Author(s):  
Zhi Guo Sun ◽  
Hong Yong Xie ◽  
Chang Wen Ma
Keyword(s):  
Special Reference ◽  
Flue Gas ◽  
Flue Gas Desulfurization ◽  
Development Status ◽  
Sulfur Containing ◽  
By Products ◽  
Flue Gas Desulphurization

Flue gas desulfurization (FGD) is one of the most effective techniques to control the emission of SO2 from the combustion of coal. The by-products of FGD may occupy much land and cause the second pollution. The resourceable technology of FGD changes SO2 from flue gas to sulfur-containing by-product, by which it is possible to solve the problem of desulfurization by-product treatment. This paper reviews the recent development of resurceable technology of FGD with special reference to removal of SO2 from flue gas.

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