Abstract

This study aimed to evaluate the effect of domestic wastewater treatment on the horizontal subsurface flow-constructed wetlands (HSSF-CWs) using Brachiaria mutica vegetation. We used two wetland models: one with plants and the other without plants. These models were built according to the following dimensions (L × W × H = 1.2 × 0.4 × 0.8 m) and operated at four organic loads (30, 60, 90, 120 kg COD/ha.day) for 3 months. Parameters including pH, COD, BOD₅, TSS, total nitrogen (TN), total phosphorus (TP), total coliforms were analyzed. The levels of pollutants in domestic wastewater after treatment were significantly reduced. The values of percentage removal (%) were as follows: COD 81.58%, BOD₅ 93.3%, TSS 67.2%, TN 58.6%, TP 85.5%, and total coliforms 90.4%. Our results also indicate that the organic loading rate (OLR) ranging between 60 and 120 kg COD/ha.day is suitable to be implemented in the actual domestic wastewater treatment.

Graphic Abstract

中文翻译：

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利用臂状臂虫处理水平地下流湿地（HSSF-CWs）的生活污水的研究

摘要

这项研究旨在评估生活废水处理对使用腕带Bracharia mutica植被的水平地下流动构造湿地（HSSF-CWs）的影响。我们使用了两种湿地模型：一种有植物，另一种没有植物。这些模型是根据以下尺寸（L×W×H = 1.2×0.4×0.8 m）构建的，并在四种有机负荷（30、60、90、120 kg COD / ha.day）下运行3个月。分析了包括pH，COD，BOD ₅，TSS，总氮（TN），总磷（TP），总大肠菌群在内的参数。处理后的生活污水中的污染物水平显着降低。去除百分比（％）的值如下：COD 81.58％，BOD ₅93.3％，TSS 67.2％，TN 58.6％，TP 85.5％和大肠菌群90.4％。我们的结果还表明，有机负荷率（OLR）在60至120 kg COD / ha.day之间，适合在实际的生活污水处理中实施。

图形摘要