▎ 摘　　要

NOVELTY - Wastewater treatment agent, comprises 10-40 pts. wt. modified diatomite, 10-30 pts. wt. iron ion flocculating agent, nano oxide and 5-15 pts. wt. macroporous resin. The modified diatomite is prepared by co-modification of graphene and polyacrylamide. The nano oxide comprises 1-10 pts. wt. nano silicon oxide and 1-10 pts. wt. nano zinc oxide. USE - The agent is useful in purifying papermaking wastewater (claimed). ADVANTAGE - The agent: utilizes graphene and polyacrylamide to jointly modify the diatomite, so that the structure of the modified diatomite is more stable, is not affected by acid and alkali, and has strong adsorption; enhances the flocculation and adsorption effects through modified diatomite composite iron ion flocculating agent and macroporous resin; and has a good treatment effect, especially the purification effect of suspended solids in wastewater. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for a preparation method of waste water treatment agent.