Method for preparing ammonia nitrogen adsorbent by using banana peel and application of ammonia nitrogen adsorbent

The invention discloses a method for preparing an ammonia nitrogen adsorbent by using a banana peel. According to the method, the ammonia nitrogen adsorbent can be prepared by dehydration, crushing, soaking and scrubbing. Compared with the common method using peels and shells to prepare an activated carbon adsorbent through heating at high temperature, the method disclosed by the invention is simple and feasible in operation and has no need of heating, low energy consumption and high yield. The invention also provides an application of the ammonia nitrogen adsorbent prepared by using the method disclosed by the invention. The ammonia nitrogen adsorbent product prepared by the method for preparing the ammonia nitrogen adsorbent by using the banana peel disclosed by the invention has good adsorption effect on the ammonia nitrogen in 10-150mg/L of ammonia nitrogen aqueous solution, the time for reaching adsorption balance is short, the adsorptive property is stable, and the ammonia nitrogen adsorbent can be used