National Center for Genetic Engineering and Biotechnology (BIOTEC), National Science and Technology Development Agency (NSTDA), Pathum Thani, Thailand.
Thamasart University, Science Classrooms in University-Affiliated School Project (SCIUS), Pathum Thani, Thailand.
Int J Phytoremediation. 2021;23(12):1270-1278. doi: 10.1080/15226514.2021.1894090. Epub 2021 Mar 8.
Sodium salt contamination in the fresh water due to industrial effluents, underground rock salts and inland aquaculture is a major concern needs to be remediated, and subsequently recycled as sustainable bioeconomic strategy. Treatment of saline wastewater requires efficient, cost-effective, rapid, and green technologies, so as to mitigate the negative impacts of salinity on agricultural land. Green technology of phytodesalination is proposed to reduce salinity in the wastewater using salt tolerant plant species. present study was designed with an aim to investigate the sodium (Na) removal capacity of salt tolerant and high biomass producing macrophytes on synthetic saline wastewater. (sea purslane), (Indian camphorweed), (narrow leaf cattail) and (heliconia) were collected, cultivated in the greenhouse, subsequently treated with 0 (control) and 217 mM NaCl (salt stress) for 4 weeks. Overall growth performance, physiological change and Na removal rate in root and leaf tissues of the candidate plant species were measured. Plants were able to maintain their growth and physiological abilities except for shoot height in (reduced by 13.7%) and chlorophyll content in (reduced by 64%). Major accumulation of Na was recorded in the shoots of and (halophytic plant species) and the roots of and (glycophytic plant species). Since and have high plant biomass, they showed higher Na removal efficiency at 4.4% and 5.7%, respectively; whereas due to lower plant biomass, and resulted in the removal of only 0.6 and 0.8% Na from the batch, respectively. Based on the information from this investigation, the selected candidate plant species can further be studied in the constructed wetland together with the controlled environments including optimized flowrate, vertical or horizontal flow system, plant densities and Na-removal rate in relation to swamp habitat. and have high plant biomass, they showed higher Na removal efficiency at 4.4% and 5.7%, respectively; whereas due to lower plant biomass, and resulted in removal of only 0.6 and 0.8% Na from the batch. Based on the information from this investigation, the selected candidate plant species can further be studied in the constructed wetland together with the controlled environments including optimized flowrate, vertical or horizontal flow system, plant densities and Na-removal rate in relation to swamp habitat.
由于工业废水、地下岩盐和内陆水产养殖，淡水中的钠盐污染是一个需要治理的主要问题，随后可以将其作为可持续的生物经济战略进行回收。处理含盐废水需要高效、经济高效、快速和绿色的技术，以减轻盐分对农业用地的负面影响。植物脱盐的绿色技术被提出，以使用耐盐植物物种来降低废水中的盐分。本研究旨在调查耐盐和高生物量产生的大型水生植物对合成含盐废水的钠（Na）去除能力。（海蓬子）、（印度香蒲）、（窄叶香蒲）和（鹤望兰）被收集，在温室中种植，随后用 0（对照）和 217mM NaCl（盐胁迫）处理 4 周。测量候选植物物种的根和叶组织中的整体生长性能、生理变化和 Na 去除率。除了（降低 13.7%）和（降低 64%）的株高和叶绿素含量外，植物能够维持其生长和生理能力。在（盐生植物物种）的地上部分和（喜盐植物物种）的根部分别记录到 Na 的大量积累。由于和具有较高的植物生物量，它们的 Na 去除效率分别为 4.4%和 5.7%；而由于植物生物量较低，从批次中仅去除了 0.6%和 0.8%的 Na。根据这项调查的信息，所选候选植物物种可以与受控环境一起在人工湿地中进一步研究，包括优化的流速、垂直或水平流动系统、植物密度和与沼泽栖息地相关的 Na 去除率。由于和具有较高的植物生物量，它们的 Na 去除效率分别为 4.4%和 5.7%；而由于植物生物量较低，从批次中仅去除了 0.6%和 0.8%的 Na。根据这项调查的信息，所选候选植物物种可以与受控环境一起在人工湿地中进一步研究，包括优化的流速、垂直或水平流动系统、植物密度和与沼泽栖息地相关的 Na 去除率。
