Being a cost-effective and environmentally benign technology, vermifiltration has significantly replaced the available conventional wastewater remediation methods in many cases over the last few decades. The present work emphasizes on the investigation of the nitrogen transformation dynamics, in addition to the organic carbon abatement in the designed high rate hybrid vermifilter. Moreover, the economical sustainability of the vermifiltration technology has also been enlightened by creating a bridge with the concept of circular bio-economy. The designed high rate macrophyte-assisted vermifilter (MAVF) ascertained significant high nitrogen and organic carbon removal efficiencies from the real domestic sewage, considering the chemical oxygen demand (COD) of the influent and hydraulic loading rate (HLR) as the input variables. The designed MAVF facilitated the maximum ammonium nitrogen (NH₄⁺-N), organic nitrogen, and total kjeldahl nitrogen removal efficiencies up to 98.2 ± 0.70%, 100%, and 99 ± 0.47%, respectively when COD of the influent and HLR were 200 ± 25 mg/L and 3 ± 0.1 m³/m²-d, respectively. On the other hand, substantial enhancement in the nitrate nitrogen (NO₃⁻-N) in the effluent (73 ± 10.55 times its influent concentration) was observed with influent COD of 200 ± 25 mg/L and HLR of 7 ± 0.2 m³/m²-d. When the influent COD and HLR were maintained at 700 ± 45 mg/L and 3 ± 0.1 m³/m²-d, respectively, the highest total nitrogen removal of 87 ± 2.25% was obtained. Alternatively, the influent COD of 200 ± 25 mg/L and HLR of 3 ± 0.1 m³/m²-d yielded the highest COD removal efficiency of 77 ± 1.59%. Hence, the outcome of the present research work strengthens the suitability of the vermifiltration technology as an economically and ecologically sound natural wastewater bio-remediation technology for the treatment of domestic wastewater.

作为一种具有成本效益和环境友好的技术，蚯蚓过滤在过去几十年的许多情况下已经显着取代了现有的传统废水修复方法。目前的工作除了在设计的高速率混合蚯蚓过滤器中减少有机碳外，还强调对氮转化动力学的研究。此外，蚯蚓过滤技术的经济可持续性也通过建立循环生物经济概念的桥梁而得到启发。考虑到进水的化学需氧量 (COD) 和水力负荷率 (HLR) 作为输入变量，设计的高速大型植物辅助蚯蚓过滤器 (MAVF) 确定了从实际生活污水中显着的高氮和有机碳去除效率。_{当进水 COD 和 HLR 分别为 200 ± 25 mg/L 和 3 ± 0.1 时， 4} ⁺ -N)、有机氮和总凯氏脱氮效率分别高达 98.2 ± 0.70%、100% 和 99 ± 0.47% m ³ /m ² -d，分别。另一方面，^进水COD 为 200 ± 25 mg/L，HLR 为 7 ± 0.2 ^m ₃ /m ² -d。当进水COD和HLR维持在700±45 mg/L和3±0.1 m ³ /m ²-d 分别获得最高的总氮去除率 87 ± 2.25%。或者，200 ± 25 mg/L 的进水 COD 和 3 ± 0.1 m ³ /m ² -d 的 HLR 产生的最高 COD 去除效率为 77 ± 1.59%。因此，本研究工作的结果加强了蠕虫过滤技术作为一种经济和生态无害的天然废水生物修复技术用于处理生活废水的适用性。