... used in purificication. Coconut Shell Activated CarbonActivated carbon with high-quality walnut shells, peach shell, almond shell as raw ... granular, with well-developed voids, adsorption, good performance, high strength, easy regeneration, economic and durable and so on. ... max 8—12% Water concentMax 3%Specific heat capacity-1.00J/g.ºC Best quality coconut shell activated carbon for water treatment