Plant filtering techniques have proved to be appropriate solutions in the treatment of wastewater. In addition, the effluents can be re-used in water-deficient areas, in urban settings as well as in rural agricultural areas. The influent from the secondary black water pilot scale filtration basins (RALBI) was treated during a six-month study. The study shows the elimination of different pollutants from black water effluents with the effectiveness of 46.9–63.26% COD and 31.72–60% of the NH₄⁺ concentrations. We also tested the performance of Arundo donax on the adsorption of nitrogen compounds. The rate of COD removal for the control was 0.0185 gCOD/m²/d and 0.012 gCOD/m²/d for the planted filters, while the mean loading rate of the influent was 0.317 g/d. The rate of NH₄-N removal for the control was 0.0152 gNH₄-N/m²/d and 0.0127 gNH₄-N/m²/d for the planted filters, while the mean loading rate of the influent was 0.271 g/d. Then, a concentration of 101.77–176.44 mg/L of nitrate was measured in the treated effluent. In addition, meaningful reduction of fecal coliforms and streptococci was achieved and reached over 95%. The quality of treated effluents has shown that the use of planted filters as a post-treatment stage is an efficient and inexpensive technology for the treatment of wastewater in small urban and rural communities.

事实证明，植物过滤技术是处理废水的合适解决方案。此外，废水可在缺水地区，城市环境以及农村农业地区中重复使用。在为期六个月的研究中，对来自二级黑水中试规模滤池（RALBI）的进水进行了处理。研究表明，从黑水废水中消除不同的污染物具有46.9–63.26％的COD和NH ₄ ⁺浓度的31.72–60％的有效性。我们还测试了Arundo donax对氮化合物的吸附性能。对照的COD去除率为0.0185 gCOD / m ² / d和0.012 gCOD / m ²/ d（对于植入的过滤器），而进水的平均负载率为0.317 g / d。对照的NH ₄ -N去除速率为0.0152 gNH ₄ -N / m ² / d，种植的过滤器为0.0127 gNH ₄ -N / m ² / d，而进水的平均负载率为0.271 g / N。 d。然后，在处理后的废水中测定的硝酸盐浓度为101.77–176.44 mg / L。此外，粪便中大肠菌群和链球菌的有效减少也达到了95％以上。经过处理的废水的质量表明，在后处理阶段使用人工过滤器是一种有效且廉价的技术，用于处理小型城市和农村社区的废水。