NOVELTY - Treatment of pharmaceutical wastewater involves filtering wastewater through 4 meshes stainless steel filter into centralized wastewater collection tanks; adjusting pH of wastewater to 6-8; irradiating with UV at 30-40 mJ/cm2 for 5 minutes; standing for 15 minutes; adding 10-15 mg/l ozone; processing for 20 minutes; filtering wastewater through 10 meshes stainless steel filter into flow sedimentation tank with lime to adjust pH 9-11; adding 80-85 mg/l ferric chloride; stirring and standing for 30-40 minutes; and filtering through 80 meshes stainless steel filter.    USE - Treatment of pharmaceutical wastewater.    ADVANTAGE - The method is effective to remove organic pollutant and pharmaceutical residues in wastewater to reduce impact on human body and environment. It provides high removal rate, and has low cost. The windmill grass planting reeds planted on wetland pond helps remove contaminants, beautify environment, and cleans air. The fermentation step allows degradation of organic matter and achieves full bacterial fermentation of waste. The macroporous resin adsorbs toxic substances that can be recycled. The resin is also recyclable. The method does not produce secondary pollution and has low cost.    DETAILED DESCRIPTION - Treatment of pharmaceutical wastewater comprises filtering wastewater through 4 meshes stainless steel filter into centralized wastewater collection tanks; adjusting pH of wastewater to 6-8; irradiating with UV at 30-40 mJ/cm2 for 5 minutes; standing for 15 minutes; adding 10-15 mg/l ozone; processing for 20 minutes; filtering wastewater through 10 meshes stainless steel filter into flow sedimentation tank with lime to adjust pH 9-11; adding 80-85 mg/l ferric chloride; stirring and standing for 30-40 minutes; filtering through 80 meshes stainless steel filter; feeding filtered stream to microbial pool; adding citric acid to adjust pH to 3-5; fermenting for 10-12 hours; filtering through 100-meshes stainless steel filter to obtain filtrate A; feeding filtrate into biogas fermentation tank; adjusting pH at 6-8; performing anaerobic fermentation; filtering through 100 meshes stainless steel filter to obtain filtrate B; flowing filtrate B into wetland pond planted with windmill grass planting reeds at 8-10 plants/m2; filtering water through 100 meshes stainless steel filter to obtain filtrate C; feeding filtrate C into adsorption tank; contacting with macroporous resin for 3-4 hours; and filtering through non-woven filter with pore size of 10 mu m.