“…These are abundantly available feedstock to produce carbonaceous adsorbents that don't compete with food crops for arable land. The investigated crop residue-based feedstocks are rice stalk and husk (Liu et al, 2016), wheat straw (Li et al, 2016;Han et al, 2018), rice straw (Sangon et al, 2018), weeds (Güzel et al, 2017), bamboo (Yang et al, 2014), corn stover and cobs (Fang, 2012), cassava (Beakou et al, 2017a;Beakou et al, 2017b), swiss grass (Mahmoud et al, 2016), sugarcane bagasse pith (Amin, 2008), jute fiber (Senthilkumar et al, 2006), and sorghum stalk (Khalil et al, 2017).…”