Ou Wen-Sheng, Lin Ying-Feng, Jing Shuh-Ren, Lin Hsien-Te
Department of Recreation and Health-Care Management, Chia-Nan University of Pharmacy and Science, Taiwan, Republic of China.
Water Environ Res. 2006 Nov;78(12):2369-76. doi: 10.2175/106143006x95465.
A constructed wetland-pond system consisting of two free-water-surface-flow (FWS) wetland cells, a scenic pond, and a slag filter in series was used for reclamation of septic tank effluent from a campus building. The results show that FWS wetlands effectively removed major pollutants under a hydraulic loading rate between 2.1 and 4.2 cm/d, with average efficiencies ranging from 74 to 78% for total suspended solids, 73 to 88% for 5-day biochemical oxygen demand, 42 to 49% for total nitrogen, 34 to 70% for total phosphorous, 64 to 79% for total coliforms, and 90 to 99.9% for Escherichia coli. After passing through the scenic pond and slag filter, the reclaimed water was used for landscape irrigation. There were a variety of ornamental plants and aquatic animals established in the second FWS cell and scenic pond with good water quality, thus enhancing landscape and ecology amenity in campuses.
一个由两个自由水面流（FWS）湿地单元、一个景观池塘和一个串联的矿渣过滤器组成的人工湿地-池塘系统，被用于处理校园建筑化粪池污水的回收利用。结果表明，在水力负荷率为2.1至4.2厘米/天的条件下，FWS湿地能有效去除主要污染物，总悬浮固体的平均去除效率为74%至78%，五日生化需氧量为73%至88%，总氮为42%至49%，总磷为34%至70%，总大肠菌群为64%至79%，大肠杆菌为90%至99.9%。经过景观池塘和矿渣过滤器后，再生水被用于景观灌溉。在第二个FWS单元和水质良好的景观池塘中种植了多种观赏植物并养殖了水生动物，从而提升了校园的景观和生态舒适度。
