Use of water primrose (Jussiaea repens L.) for treatment of some pollutants in domestic wastewater under laboratory condition
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Abstract
The objective of this study was to examine the abilities of Jussiaea repens L. in removing organic compounds, nitrogen and phosphorus from domestic wastewater under laboratory conditions. The experimental model consisted of four plastic tanks, each measuring 52 x 32 x 27.5 cm, labeled as NT1, NT2, and NT3 corresponding to 150, 300, and 450 g of Jussiaea repens L., respectively. The control tank contained only domestic wastewater without the plants. The input domestic wastewater parameters (mean ± standard deviation, n = 3) were as follows: pH = 6.66 ± 0.32, BOD5 (Biological oxygen demand) = 347.64 ± 39.60 mg/L, NH4+ = 27.53 ± 1.74 mg/L, NO3- = 2.23 ± 0.26 mg/L, and PO43- = 24.69 ± 1.27 mg/L. After twenty days of experimentation, the tank containing 450 g of plants achieved the highest treatment efficiencies for BOD5, NH4+ and NO3-, with respective efficiencies of 29.1, 24.2, and 43.8%. Regarding phosphate removal, the tank (NT2) using 300 g of plants achieved the highest treatment efficiency (by plants), with a reduction of 9.5% after 20 days.
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References
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