جستجوی مقالات مرتبط با کلیدواژه « بتون » در نشریات گروه « صنایع چوب و کاغذ »

Considering the special position of biomass in providing energy in today's world and the increasing use of these renewable resources, it is expected that the production of ash will increase in the future. Therefore, the importance of biomass ash management and recycling regarding environmental and economic aspects has become more apparent. In this study, the properties of ash obtained from different lignocellulosic biomasses were investigated. For this purpose, two methods of electric furnace and open-air combustion are utilized to prepare ash from six types of lignocellulosic biomass, including rice husk, wheat straw, tree branches, MDF waste, recycled fibers from MDF waste and waste paper pulp. The content, dimensions, color, pH and chemical composition of different biomasses were investigated. The lowest content of ash was observed in recycled fibers and the highest amount of ash was observed in rice husk. All the ashes were alkaline. The color of the ashes obtained by the electric furnace method was brighter than that of open-air combustion. The smallest dimensions of the ash particles were related to the pulp ash of the electric furnace method and the largest dimensions were related to the branch ash obtained by the open-air method. The chemical compositions of the ashes were different. The obtained information is useful in determining the appropriate application of ashes.