Treatment of Domestic Wastewater Using Free Floating Constructed Wetlands Assisted by Eichhornia crassipes and Pistia stratiotes

被引:2
|
作者
Sayanthan, S. [1 ,2 ]
Hasan, Hassimi Abu [1 ,3 ]
Buhari, Junaidah [1 ]
Abdullah, Siti Rozaimah Sheikh [1 ,3 ]
机构
[1] Univ Kebangsaan Malaysia, Fac Engn & Built Environm, Dept Chem & Proc Engn, Ukm Bangi 43600, Selangor, Malaysia
[2] Univ Jaffna, Fac Technol, Dept Biosyst Technol, Jaffna, Sri Lanka
[3] Univ Kebangsaan Malaysia, Fac Engn & Built Environm, Res Ctr Sustainable Proc Technol CESPRO, Ukm Bangi 43600, Selangor, Malaysia
来源
JOURNAL OF ECOLOGICAL ENGINEERING | 2024年 / 25卷 / 08期
关键词
phytoremediation; sewage wastewater; floating aquatic macrophytes; water hyacinth; effluent treatment; PHYTOREMEDIATION; HYACINTH; REMOVAL;
D O I
10.12911/22998993/188903
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
Floating phytoremediation offers a feasible, ecofriendly, and economically viable method for treating wastewater. The objective of this study was to assess the effectiveness of Eichhornia crassipes and Pistia stratiotes in treating domestic wastewater with varying initial strength at different hydraulic retention time (HRT). This was to find out a best treatment combination of macrophyte, wastewater strength and HRT by optimizing those parameters. The growth parameters of the plants were assessed and linked to the removal of contaminants. The wastewater phytoremediation by E. crassipes and P. stratiotes conducted for twenty-two days in a green house. Result showed that Eichhornia crassipes able to treat 50% strength of wastewater (50 WH) efficiently with removal of ammonia by 97.4%, phosphate by 68.5%, and COD by 54.0%, respectively, at the HRT of three days. The corresponding initial concentrations of ammonia, phosphate, and COD were likely to be 6.62 mg/L, 2.54 mg/L, and 37 mg/L, respectively. The 50WH experimental units showed the lowest relative growth rate (RGR). The results proved the higher efficiency of E. crassipes in treating the domestic wastewater.
引用
收藏
页码:237 / 252
页数:16
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