Lehl Harvinder Kaur, Ong Soon-An, Ho Li-Ngee, Wong Yee-Shian, Saad Farah Naemah Mohd, Oon Yoong-Ling, Oon Yoong-Sin, Thung Wei-Eng, Yong Chin-Yii
a Water Research Group (WAREG), School of Environmental Engineering , Universiti Malaysia Perlis , Perlis , Malaysia.
b School of Materials Engineering, Universiti Malaysia Perlis , Perlis , Malaysia.
Int J Phytoremediation. 2017 Aug 3;19(8):725-731. doi: 10.1080/15226514.2017.1284748.
The objective of this study is to determine the reduction efficiency of Chemical Oxygen Demand (COD) as well as the removal of color and Amaranth dye metabolites by the Aerobic-anaerobic Baffled Constructed Wetland Reactor (ABCW). The ABCW reactor was planted with common reed (Phragmite australis) where the hydraulic retention time (HRT) was set to 1 day and was fed with synthetic wastewater with the addition of Amaranth dye. Supplementary aeration was supplied in designated compartments of the ABCW reactor to control the aerobic and anaerobic zones. After Amaranth dye addition the COD reduction efficiency dropped from 98 to 91% while the color removal efficiency was 100%. Degradation of azo bond in Amaranth dye is shown by the UV-Vis spectrum analysis which demonstrates partial degradation of Amaranth dye metabolites. The performance of the baffled unit is due to the longer pathway as there is the up-flow and down-flow condition sequentially, thus allowing more contact of the wastewater with the rhizomes and micro-aerobic zones.
本研究的目的是确定好氧-厌氧折流人工湿地反应器（ABCW）对化学需氧量（COD）的去除效率以及对颜色和苋菜红染料代谢产物的去除情况。ABCW反应器种植了芦苇（Phragmite australis），水力停留时间（HRT）设定为1天，并加入苋菜红染料的合成废水作为进水。在ABCW反应器的指定隔室中提供补充曝气，以控制好氧区和厌氧区。添加苋菜红染料后，COD去除效率从98%降至91%，而颜色去除效率为100%。紫外-可见光谱分析表明苋菜红染料中的偶氮键发生了降解，这证明了苋菜红染料代谢产物的部分降解。折流单元的性能归因于其较长的流程，因为存在依次的上流和下流条件，从而使废水与根茎和微好氧区有更多接触。
