粪便污泥处理:揭示最大秫米植物的潜力

IF 2.6 4区 环境科学与生态学 Q3 ENVIRONMENTAL SCIENCES
Baruc Kpèhouénou Goussanou, Akuemaho Virgile Onésime Akowanou, Mouhamadou Nourou Dine Liady, Hontonho Espérance Justine Deguenon, Mohamed Moukorab Arêmou Daouda, Olouwachêgun Esdras Moïse Ayitchédéhou, Martin Pépin Aina, Jérôme Labanowski
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引用次数: 0

摘要

本研究评估了三种植物(Panicum maximum、Echinochloa pyramidalis 和 Typha domingensis)在污泥处理芦苇床(STRB)内污泥处理过程中提高去除盐度、氮、磷和化学需氧量的效果。实验装置由 1 立方米的沙石池组成,模拟芦苇床的构造。共使用了 12 个中试规模的单元,每个植物物种测试一式三份,另外三个单元作为未种植组(对照组)。在为期 6 个月的时间里,这些单元每周都会接收到来自贝宁南部某地的粪便污泥。每周进行采样,以评估所评估参数的去除效率。结果表明,与对照床相比,STRB 的效果更佳,这要归功于植被的存在。在 300 千克 TS/m2/ 年的负荷率下,该系统表现良好。其中,P. maximum 和 E. pyramidalis 床的去除率最高(盐度:97.95%;PO43-:97.75%;TP:98.08%;NH4+:98.68;NO3-:98.71%;TKN:99.53%;TSS:99.98%;COD:99.94%)。此外,E. pyramidalis 和 P. maximum 床层的干燥率(分别为 49.5% 和 48.5%)超过了 T. domingensis 床层的干燥率(34.7%)。这些发现凸显了 P. maximum 这一新测试物种在 STRB 中的应用潜力,强调了对这一物种进行专门研究的必要性。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Faecal Sludge Treatment: Unveiling the Potential of the plant Panicum maximum

Faecal Sludge Treatment: Unveiling the Potential of the plant Panicum maximum

This study evaluated the effectiveness of three plant species (Panicum maximum, Echinochloa pyramidalis, and Typha domingensis), in enhancing the removal of salinity, nitrogen, phosphorus, and chemical oxygen demand during sludge treatment within sludge treatment reed beds (STRBs). The experimental setup consists of 1 m3 tanks composed of sand and gravel, simulating the reed bed configuration. A total of twelve pilot-scale units were used, with each plant species tested in triplicate, while three units were used as non-planted (control) groups. Over a 6-month period, the units received weekly loadings of faecal sludge sourced from a site in southern Benin. Sampling was carried out weekly in order to evaluate the removal efficiency of the assessed parameters. The results showed the superior efficacy of STRBs compared to control beds, attributing this enhancement to the presence of vegetation. At a loading rate of 300 kg TS/m2/year, the system presented good performance. In particular, P. maximum and E. pyramidalis beds demonstrated the highest removal rates (Salinity: 97.95%, PO43−: 97.75%, TP: 98.08%, NH4+: 98.68, NO3: 98.71%, TKN: 99.53%, TSS: 99.98%, COD: 99.94%). Moreover, the drying rates of E. pyramidalis and P. maximum beds (49.5% and 48.5%, respectively) surpassed those of T. domingensis beds (34.7%). These findings highlight the potential of P. maximum, a newly tested species, for application in STRBs, emphasizing the need for dedicated research on this species.

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来源期刊
CiteScore
5.40
自引率
0.00%
发文量
104
审稿时长
1.7 months
期刊介绍: International Journal of Environmental Research is a multidisciplinary journal concerned with all aspects of environment. In pursuit of these, environmentalist disciplines are invited to contribute their knowledge and experience. International Journal of Environmental Research publishes original research papers, research notes and reviews across the broad field of environment. These include but are not limited to environmental science, environmental engineering, environmental management and planning and environmental design, urban and regional landscape design and natural disaster management. Thus high quality research papers or reviews dealing with any aspect of environment are welcomed. Papers may be theoretical, interpretative or experimental.
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