The effect of Phragmites australis and Eichhornia crassipes in the removal of high total phosphorus concentrations from water

Abstract

In order to evaluate the accumulation of high phosphorus and the distribution on macrophytes part, the experiment was conducted by arranged vegetated and unvegetated treatment in a greenhouse experiment. Reactor containing 5L of phosphorus solution (50 or 500 mg/L), 4 kg of sediment and plants (Phragmites australis or Eichhornia crassipes) were prepared. The studied concentrations tried to stimulate an accumulation of Total Phosphorus (TP) in plants. Water were sampled every 5 days during 30 days of experiments while sediment and plant samples (roots, submerged leaves and aerial leaves) were collected at the beginning and at end of this study. Relative growth rate (RGR) of plants was determined considering initial and final plant height. As results, more than 60% of TP was removed by P. australis and E. crassipes from the water. Both P. australis and E. crassipes has great capability to accumulated TP in their tissues, submerged part of leaves accumulated highest TP than other part, due to directly contact with water. RGR was positive suggested both plant able to tolerance TP in high concentration. P. australis was accumulated higher TP than E. crassipes. Therefore P. australis is suitable for phytoremediation practice, being capable to tolerate high TP concentration.

Using eDNA presence/non‐detection data to characterize the abiotic and biotic habitat requirements of a rare, elusive amphibian

“…in the Hula Valley prior to its drainage, although they had not been among the dominant taxa (Avisar & Fox, 2012;Dimentman et al, 1992;Gophen, 2000). All three are known to grow rapidly and to tolerate elevated phosphorus levels (e.g., Emery & Perry, 1996;Galal et al, 2021;Salamah et al, 2019). The particularly high tolerance of P. australis ("common reed") to increased nutrient and toxic heavy metal loads, and its capacity to accumulate large amounts of both in its tissue, has led to its extensive use in phytoremediation practices in wetlands, especially for controlling phosphorus concentrations (e.g., Ahmad et al, 2014;Carricondo et al, 2020;Srivastava et al, 2014).…”

“…nigriventer DNA in the water had been present in the Hula Valley prior to its drainage, although they had not been among the dominant taxa (Avisar & Fox, 2012; Dimentman et al, 1992; Gophen, 2000). All three are known to grow rapidly and to tolerate elevated phosphorus levels (e.g., Emery & Perry, 1996; Galal et al, 2021; Salamah et al, 2019). The particularly high tolerance of P .…”

Performance evaluation of pilot phyto-vortex integrated system in the reduction of wastewater pollutants

“…Ideal plants for phytoremediation should possess characteristics such as high biomass, a robust root system, fast growth, microbial support, and ease of cultivation. Common reeds, like Phragmites australis, are known for their effectiveness in removing nitrogen and phosphorus from wastewater, thanks to their extensive root system [6]. Studies have demonstrated successful treatment of sewage water with vetiver in a hydroponic system, resulting in over 90% reduction.…”