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Effect Of Potassium Salts On Biochar Pyrolysis, Yuthapong Wongmat, David R. Wagner
Effect Of Potassium Salts On Biochar Pyrolysis, Yuthapong Wongmat, David R. Wagner
Faculty Research, Scholarly, and Creative Activity
Alkali pretreatment is one of the chemical pretreatment technologies that has been examined on various types of lignocellulosic biomass. To gain a better insight into the effects of a potassium-based catalyst on pyrolysis behavior with different materials, potassium bicarbonate (KHCO3) and potassium nitrate (KNO3) were used as additives in this study. The experimental parameters which included particle size, heating rate, and additive loading were investigated. The results showed that adding potassium for both KHCO3 and KNO3 to feedstocks led to increase in biochar. A model-free method, Flynn–Wall–Ozawa (FWO), was implemented in this study to determine the activation energy values for …
Co-Composted Biochar Improves Dry-Farmed Tomato Productivity In The Santa Clara Valley, Ca, With No Change In Soil Microbiology, Duncan A. Keller
Co-Composted Biochar Improves Dry-Farmed Tomato Productivity In The Santa Clara Valley, Ca, With No Change In Soil Microbiology, Duncan A. Keller
Master's Theses
California is a globally important site for agricultural production, but the state is currently suffering from an unprecedented drought. One strategy to conserve water is dry farming, where growers cache moisture in the soil from off-season rain or early-season irrigation for crops to use throughout the growing season. Some California growers have dry-farmed tomatoes for decades. Recently, some have begun adding co-composted biochar (COMBI) to boost productivity and stimulate soil microbiology, particularly arbuscular mycorrhizal fungi. To the best of my knowledge, no field research on dry-farmed tomato systems currently exists, let alone on the effects of COMBI amendments on yield, …