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首页> 外文期刊>Journal of Environment and Earth Science >Effects of Detention Period and Sand-Based Surface Flow Constructed Wetland in Kitchen Wastewater Treatment using Phragmites Australis (Common Reed) as Macrophyte
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Effects of Detention Period and Sand-Based Surface Flow Constructed Wetland in Kitchen Wastewater Treatment using Phragmites Australis (Common Reed) as Macrophyte

机译：芦苇（芦苇）为生植物时滞留期和砂基地表人工湿地对厨房废水的影响

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摘要

A greenhouse laboratory-scale experiment was conducted at the Department of Civil Engineering, Ladoke Akintola University of Technology (LAUTECH) Ogbomoso, Nigeria in May 2013 to demonstrate the performance of free water surface-flow sand- based constructed wetland, prepared with locally available plants, specifically common reed (Phragmites australis), as a viable low-cost efficient treatment option for domestic wastewater from kitchen. The nutrient removal and performance evaluation of the constructed wetland in treatment of kitchen wastewater was investigated. Treatment efficiency was evaluated during the 10-day retention period, and results indicated that the nutrients reduction corresponds to a longer retention time in wetland beds. There is a remarkable reduction in B.O.D (38.2-100%), hardness (100%), turbidity (55.2-77.2%), Nitrate (66.7-100%), zinc, ORP (45.0-79.1%), Sulphite (24-100%) sulphate (100%), TSS (55.2-82.3%) and little reduction in TDS (6.93-40%) and also there was increase in pH (31.7-45.6%), Magnessium (16.7-50%), Iron (50-75%), calcium ( 16.7-50%) The final effluent was found to be suitable for non-drinking purposes like crop irrigation, keeping aquatic animals and direct discharge into a receiving water body as the concentrations were well below allowable limits.The treatment system was found to be economical, as the cost of construction only was involved and maintenance cost very minimal. It was environmentally friendly as it was free from offensive odour and insect invasion. A pilot scale constructed wetland is recommended for further research works. Keywords: Constructed wetland, Kitchen wastewater, Nutrient removal, Retention period, Phragmites australis
机译：2013年5月，在尼日利亚拉格克·阿金托拉技术大学（LAUTECH）的奥格莫索市土木工程系进行了温室实验室规模的实验，以证明由当地现有植物制备的自由水面流沙基人工湿地的性能，尤其是普通芦苇（Phragmites australis），是一种可行的低成本高效处理方法，可用于处理厨房生活污水。研究了人工湿地在处理厨房废水中的养分去除和性能评价。在保留期10天期间评估了处理效率，结果表明养分减少对应于在湿地床上的保留时间更长。 BOD（38.2-100％），硬度（100％），浊度（55.2-77.2％），硝酸盐（66.7-100％），锌，ORP（45.0-79.1％），亚硫酸盐（24- 100％）硫酸盐（100％），TSS（55.2-82.3％）和TDS几乎没有降低（6.93-40％），pH值也有所增加（31.7-45.6％），镁（16.7-50％），铁（50-75％），钙（16.7-50％）被发现的最终流出物适用于非饮用目的，例如作物灌溉，饲养水生动物和直接排放到接收水体中，因为其浓度远低于允许的限值发现该处理系统是经济的，因为仅涉及建造成本并且维护成本非常低。这是环保的，因为它没有令人讨厌的气味和昆虫入侵。建议将中试规模的湿地用于进一步的研究工作。关键词：人工湿地;厨房废水;养分去除;保留期;芦苇

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