Bottom slag-to-flue gas controls on S and Cl from co-combustion of textile dyeing sludge and waste biochar: Their interactions with temperature, atmosphere, and blend ratio
Yükleniyor...
Dosyalar
Tarih
2022
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Elseiver
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
S and Cl distribution patterns and their evolution pathways were quantified during the co-combustions of textile dyeing sludge (TDS) and waste biochar (BC). S in the flue gas rose from 10.60% at 700 degrees C to 45.09% at 1000 degrees C for the mono-combustion of TDS in the air atmosphere. At 1000 degrees C, S in the bottom slag and flue gas grew by 2.65% and fell by 2.11%, respectively, for the TDS mono-combustion in the 30%O2/70%CO2 atmosphere. The 40% BC addition increased the S retention in the bottom slag by 30.39% and decreased its release to the flue gas by 34.50% by changing the evolution of CaSO4 and enabling more K to fix S as K2SO4. The decomposition of inorganic Cl was the main source of the Cl-containing gases. The 20%O2/80%CO2 atmosphere (36.29%) and 40% BC addition (27.26%) had higher Cl in the bottom slag than did TDS mono-combusted at 1000 degrees C (25.60%) by inhibiting the decomposition of organic Cl. Our study provides insights into the co-combustion of TDS and BC and controls on S and Cl for a cleaner production. Future research remains to conducted to verify scale-up experiments.
Açıklama
Acknowledgement The National Natural Science Foundation of China (No. 51978175; 41773130) , the Scientific and Technological Planning Project of Guangzhou (No. 202103000004) , the Natural Science Foundation of Guangdong Province, China (No. 2022A1515010825) , and the Social Science and Technology Development Project of Dongguan (No. 20211800904662) all financially contributed to this scientific research. We would like to thank teacher Yan Kai at the Analysis and Test Center of Guangdong University of technology for his assistance with the XPS analysis.
Anahtar Kelimeler
Textile Dyeing Sludge, Sulfur, Chlorine, Sewage-Sludge, Hydrogen-Chloride, Heavy-Metals
Kaynak
Journal of Hazardous Materials
WoS Q Değeri
Q1
Scopus Q Değeri
Q1
Cilt
435
Sayı
Künye
Huang, H., Liu, J., Evrendilek, F., Zhang, G., Sun, S., & He, Y. (2022). Bottom slag-to-flue gas controls on S and Cl from co-combustion of textile dyeing sludge and waste biochar: Their interactions with temperature, atmosphere, and blend ratio. Journal of Hazardous Materials, 435, 129007.
