Valorization of peanut shells through biochar production using slow and fast pyrolysis and its detailed physicochemical characterization oleh Gajanan Sawargaonkar, Rajesh Pasumarthi, Santosh Kale, Pushpajeet Choudhari, S. Rakesh, Srikanth Mutnuri, Ajay Singh, Harikishan Sudini, Manasa Ramaraju, Ramesh Singh, Arabinda Kumar Padhee, Mangi Lal Jat