Ammonia nitrogen adsorbing material and preparation method thereof

The invention discloses an ammonia nitrogen adsorbing material and a preparation method thereof. The preparation method specifically includes the steps that a sediment sample is selected, freeze-dried and ground into powder, the powder is screened, and sediment powder is obtained; under the condition that nitrogen is introduced, the sediment powder is anaerobically heated at the temperature of 500-800 DEG C; natural zeolite is cleaned, dried and ground into powder, the powder is screened, and natural zeolite powder is obtained; the heated sediment powder and the natural zeolite powder are evenly mixed, and the ammonia nitrogen adsorbing material is obtained. The preparation method further can include the steps of modification, heat treatment and the like. The material has the good ammonia nitrogen adsorbing effect, the ammonia nitrogen removal rate of water reaches 70%, and the material is suitable for removing ammonia nitrogen in natural water. The purpose of treating waste with waste is achieved through sediment in a lake, a raw material source is cheap and easy to obtain, and production cost is greatly reduced. The ecological risk to the lake water is low, the preparation method is simple and feasible, and market application prospects are good.