Brewer’s Spent Grain Biochar: Grinding Method Matters

The present work is based on the principle of biomass waste valorization. Brewer’s spent grains (BSG) come from breweries as by-products. Their huge amount production an industrial scale should focus our attention their valorization, which creates challenges well opportunities. One way to valorize BSG by-products convert them into biochar, a functional material with multiple potential applications. With emphasis sustainable development and circular economy, in this work, we focused comparative study different mechanical processes grinding effect resulting biochar formed after pyrolysis. Home appliances such blenders, coffee mills, mortar pestles were used for purpose. FESEM images confirmed successful creation five morphologies same under pyrolysis conditions. Interestingly, novel Chinese tea leaf egg-like was also formed. It found that series physical pretreatments resulted reduced roughness surface, i.e., they became smoother, thus negatively affecting quality biochar. XRD revealed treatments reflected crystallinity some Via Raman study, witnessed pressure features through pressure-induced modifications biomass’s internal structure. This induced enhanced graphitization. good example role mechanochemistry. DSC thermochemical transformation samples be exothermic reactions. opens up interesting possibility synthesis controlled morphology, crystallinity, degree graphitization, heat capacity.