摘要：

The invention belongs to the technical field of water environment safety and resource reuse, and relates to thermal cracking carbon for removing polycyclic aromatic hydrocarbon in water as well as a preparation method and an application thereof. The thermal cracking carbon is prepared by the following steps: airing one or more agricultural wastes selected from maize straws, wheat straws or peanut shells; and then carbonizing under an anaerobic condition at 350-500 DEG C. The thermal cracking carbon can be applied to removing polycyclic aromatic hydrocarbon in water. The invention provides a novel adsorbing material, and the thermal cracking carbon is prepared from the raw materials of maize straws, wheat straws or peanut shells which are taken as the thermal cracking carbon, so that not only is the problem that the straws are unreasonably utilized solved, are the agricultural wastes effectively utilized and is the environment purified, but also polycyclic aromatic hydrocarbon is effectively adsorbed, particularly pyrene, and the concentration of polycyclic aromatic hydrocarbon in an organic polluted water body is reduced. The thermal cracking carbon is low in desorption rate, persistent and stable, and the water safety problem is solved, thereby realizing two purposes.

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