Production of Silicon Carbide Liquid Fertilizer by Hydrothermal Carbonization Processes from Silicon Containing Agricultural Waste Biomass

Abstract

Abstract. Wastes from agriculture or sewage systems have several properties, such as huge volume, high humidity, and high organic composition. According to past studies, sugarcane extract, peanut shells and rice husks have high silicon content. Chemical conversion of biomass feedstock will enhance usage and provide value to agricultural waste. In this research, we applied hydrothermal carbonization to convert silicon-rich waste biomass to produce silicon-doped liquid fertilizer. The experimental trial comprised five different treatments: the application of rice husks, peanut shells and sugarcane extract, silicon carbide fertilizer, water and soil without any additives. Concentrations used were 6% rice husk, peanut shells and sugarcane extract carbide liquid fertilizer, 30% water and 50% dried soil. The concentration effect of synthesized liquid on plant growth was compared. The statistical comparison showed that peanut shell application had a significant effect on cabbage seed germination and improved the plant's growth rate when silicon carbide content was increased. When the content of silicon carbide in the liquid fertilizer was higher than 12%, crop growth was inhibited.

A Practical Case Report on the Node Point of a Butterfly Model Circular Economy: Synthesis of a New Hybrid Mineral–Hydrothermal Fertilizer for Rice Cropping

“…The pH and electro-conductivity (EC) of the BNS are 7.0 and 3.5 us/cm, respectively. The ICP element analysis (Table 1) revealed that the sugarcane contained 15.37% K, the rice husk contained 53.28% K, and the peanut shells contained 97.14% K, with high contents of C and Si [29,30]. Figure 3 shows that the addition of BNS and sericite increased rice plant height, number of grains, and panicle weight when compared with Ck (pure water only).…”

“…Therefore, from the viewpoint of circular design for agriculture, we can consider the application of silicon-containing mineral waste such as sericite to promote crop growth. This study used a cellulosic biomass nutrient solution (BNS) made from the hydrothermal carbonization (HC) of agricultural waste, as described in our previous investigations [29,30], and sericite mineral waste to enhance rice growth by reducing empty grains.…”

Taguchi Optimization of Fracture Toughness of Silicon Carbide Extracted from Agricultural Wastes

“…Hydrothermal Carbonization Method for making Silicon Carbide liquid fertilizer from Agricultural Waste was developed by Chang et al [15]. The low quality of the material extracted hampered its abrasive application.…”

Изменение Агрофизических Свойств Чернозема Выщелоченного В Зависимости От Применения Местных Кремнийсодержащих Пород И Удобрений

“…Исследования, проведенные с применением природных диатомитов, расширили возможности применения кремния и его соединений в сельском хозяйстве [1,3,7,10,16,17,19]. В настоящее время механизм действия кремнийсодержащих пород в почвенных процессах еще недостаточно изучен [2,4,6,8,18] В статье приведены результаты исследований по изучению влияния кремнийсодержащей породы (диатомита) и удобрений на агрофизические свойства чернозема выщелоченного и урожайность сельскохозяйственных культур.…”