id	keyword
brj-24233	cassava chaff
brj-24233	et al
brj-24233	adsorption
brj-24233	heat
brj-24233	ions
brj-24233	arsenic
brj-24233	ash
brj-24233	surface
brj-24233	adsorbent
brj-24233	cassava ash
brj-24233	article
brj-24233	water
brj-24233	treatment
brj-24233	peak
brj-24233	fig
brj-24233	chaff ash
brj-24233	rayyes
brj-24233	process