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Effect of wastewater depth to the performance of short-term batching-experiments horizontal flow constructed wetland system in treating domestic wastewater
Environmental Technology & Innovation ( IF 6.7 ) Pub Date : 2020-08-10 , DOI: 10.1016/j.eti.2020.101106
Fayeq Abdel Hafez Al-Ajalin , Mushrifah Idris , Siti Rozaimah Sheikh Abdullah , Setyo Budi Kurniawan , Muhammad Fauzul Imron

Constructed wetland (CW) is one of alternative technologies to treat domestic wastewater rather than using physico-chemical processes. In this research, the efficiency of CW to treat domestic wastewater was analyzed.Short-term batching-experiments of horizontal flow CW under different wastewater depth (35 cm and 45 cm) planted with native plants of Lepironia articulata and Scirpus grossus was tested for 5 days to remove Biological Oxygen Demand (BOD5), Chemical Oxygen Demand (COD), Total Suspended Solid (TSS), ammonium and phosphate. Results showed that all planted CW showed high removal of BOD5, COD, TSS, ammonium and phosphate with values up to 99.70%, 96.94%, 99.03%, 100% and 99.5%, respectively. The addition of plants significantly increases the BOD5, COD and TSS removal up to 27%, 38.5% and 40% compared to the non-planted beds, respectively. The wastewater depth of 45 cm had a significantly lower dissolved oxygen concentration inside CW as compared to the 35 cm depth, resulting in lower efficiency of BOD5 and COD removals. The addition of plants showed a significant increase in ammonium and phosphate removal, indicating both plants performance in up taking nutrients from wastewater. S. grossus showed a slightly higher capability in up taking phosphate compared to the L. articulata. No significant difference was obtained for nutrient removal under different wastewater depth. The result of this research showed that short-term planted CW was reliable in treating domestic wastewater with high organic and nutrient concentration characteristics.



中文翻译:

废水深度对短期分批实验水平流人工湿地系统处理生活污水性能的影响

人工湿地(CW)是替代生活污水的替代技术之一,而不是使用物理化学过程。本研究对连续水处理生活污水的效率进行了分析,并在不同深度(35 cm和45 cm)的天然细叶小球藻短尾瓢虫种植的水平流连续水的短期分批试验中进行了5次测试。天,以消除生物需氧量(BOD 5),化学需氧量(COD),总悬浮固体(TSS),铵和磷酸盐。结果表明,所有种植的化学废物均对BOD 5具有较高的去除率,COD,TSS,铵和磷酸盐,其值分别高达99.70%,96.94%,99.03%,100%和99.5%。与未种植的床相比,植物的添加显着提高了BOD 5,COD和TSS的去除率,分别达到27%,38.5%和40%。45 cm的废水深度与35 cm的深度相比,CW内部的溶解氧浓度明显降低,导致BOD效率降低5和COD去除。添加植物后,铵和磷酸盐的去除量显着增加,表明两种植物在吸收废水中养分方面均表现出色。与沙门氏菌相比,格氏链球菌显示出更高的摄取磷酸盐的能力在不同的废水深度下,去除营养物没有显着差异。研究结果表明,短期种植的连续波处理高有机物和养分浓度高的生活污水是可靠的。

更新日期:2020-08-19
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