▎ 摘　　要

NOVELTY - Mixed sewage treatment agent comprises 10-20 pts. wt. orange peel, 5-10 pts. wt. Fuller's earth, 8-15 pts. wt. dodecyl dimethyl benzyl ammonium chloride, 5-15 pts. wt. graphene, 5-10 pts. wt. polyferric sulfate, 0.5-1 pts. wt. butyl acetate, 5-10 pts. wt. sodium carbonate, 5-10 pts. wt. sodium xylene sulfonate, 3-10 pts. wt. trimeric sodium phosphate, 2-8 pts. wt. tall oil fatty acid, 5-18 pts. wt. peracetic acid disinfectant, 2-5 pts. wt. lauryl betaine, 2-5 pts. wt. octadecyl trimethyl ammonium chloride, and 10-15 pts. wt. fly ash. USE - The agent is useful for reducing heavy metal ion, chemical oxygen demand (COD), suspended solid (SS) content in the sewage (claimed). ADVANTAGE - The agent: has no toxic substance, and good decoloring effect; and process water without producing odor. The method: is simple; has low cost and short period. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for preparing the mixed sewage treatment agent, comprising (i) weighing each raw material, (ii) uniformly mixing the fly ash, and sodium carbonate, placing into a muffle furnace, firstly heating for 10-20 minutes at 200-400 degrees C, and calcining for 20-50 minutes at 450-750 degrees C, (iii) grinding the product obtained in the step (ii), sieving, adding lauryl betaine, graphene, polymeric ferric sulfate, and uniformly stirring at 40-60 degrees C, (iv) placing the orange peel into grinder, and sieving through 100-150 meshes to obtain orange peel powder, (v) adding orange peel powder into the per acetic acid disinfectant, and adding butyl acetate, sodium tripolyphosphate, tall oil fatty acid, octadecyl trimethyl ammonium chloride, sodium xylene sulfonate and dodecyl dimethyl benzyl ammonium chloride, using stirrer to stir uniformly for 10-20 minutes at 5-15 degrees C, and (vi) mixing the product obtained in the step (iii) and step (v), and shaking for 5-10 minutes by ultrasonic wave to obtain product.