Novel amino walnut shell adsorbent with efficient adsorption performance and preparation method thereof

The invention discloses a novel amino walnut shell adsorbent with efficient adsorption performance and a preparation method thereof. The novel adsorbent is used for adsorbing heavy metal ions in wastewater and is prepared based on research of adsorption material regeneration technology. The preparation process is mainly as follows: an amino walnut shell is prepared with a Sinkiang walnut shell as a basic material, epoxy chloropropane as an etherifying agent, N,N-dimethyl formamide as a solvent and triethylene tetramine as a crosslinking agent. Compared with an original Sinkiang walnut shell in the aspect of adsorbing heavy metal ions, the novel adsorbent has the advantages of high removal rate and large adsorbing capacity; as the novel adsorbent can be recycled, the cost is lowered and resources can be reasonably utilized in the aspect of economy; an effect of controlling waste with waste can be achieved by the novel adsorbent in the aspect of environment protection. The raw materials are readily available, a