Thermal Catalytic Production of Potassium Humate Fertilizer from Tobacco Straw and Its Performance in Wheat Hydroponics
Li Q. Li J. Zhao Y. Zhu Y. Baikenov M.I. Liu X. Su X.
2024E.A. Buketov Karaganda University Publish house
Eurasian Journal of Chemistry
2024#29Issue 37 - 15 pp.
Production of artificial humic acid (AHA) from waste biomass will contribute to environmental protection and agricultural productivity. However, there is still a lack of a faster, more efficient and eco-friendly way for sustainable production. In this study, potassium humate was prepared from agricultural waste tobacco straw by thermal catalysis using environmentally friendly Fe2O3 as a catalyst. The yield of potassium humate was successfully increased to 68.77 %. In the present study, using characterization methods such as TG-DTG and UV, it was found that the potassium humate prepared from tobacco straw had lower aromaticity, smaller molecular weight, as well as better solubility and better quality. In addition, the effect of potassium humate fertilizer on wheat biomass was also investigated in this experiment by wheat hydroponics. The results showed that the germination rate of wheat increased by 17 % and the fresh and dry weights increased by 6.94 % and 19.31 %, respectively, with the addition of potassium humate prepared with iron catalyst. This study provides a green and simple technology for the resourceful utilization of tobacco straw to produce high value-added potassium humate, and enriches the source of raw materials for potassium humate, expanding its application in the field of crop growth.
artificial humic acid (AHA) , biomass , fertilizer , potassium humate , thermal catalysis , Tobacco straw , tobacco straw , wheat growth , wheat hydroponics
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School of Environment and Energy, Guangdong Provincial Key Laboratory of Solid Wastes Pollution Control and Recycling, South China University of Technology, Guangdong, Guangzhou, 510006, China
Karaganda Buketov University, Universitetskaya street, 28, Karaganda, 100024, Kazakhstan
College of Chemistry and Chemical Engneering, Xinjiang Agricultural University, 311 East Nongda Road, Urumqi, 830052, China
School of Environment and Energy
Karaganda Buketov University
College of Chemistry and Chemical Engneering
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