Utilizing NPKS fertilizer for the enhancement of Pennisetum purpureum growth and phytoremediation of arsenic in treatment wetland.

IF 3.1 4区环境科学与生态学 Q2 ENVIRONMENTAL SCIENCES International Journal of Phytoremediation Pub Date : 2025-01-01 Epub Date: 2025-02-17 DOI:10.1080/15226514.2025.2461209

Md Ekhlasur Rahman, Md Kamal Uddin, S M Shamsuzzaman, Khairil Mahmud, Mohd Yunus Abd Shukor, Siti Salwa Abd Ghani, Abba Nabayi, Buraq Musa Sadeq, Sayma Serine Chompa, Amaily Akter, Mohd Izuan Effendi Bin Halmi

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Abstract

Phytoremediation of arsenic in constructed wetlands (CWs) is becoming the most efficient, eco-friendly, and sustainable technology worldwide. This research aimed to explore the impact of utilizing NPKS fertilizer on the enrichment of Pennisetum purpureum growth and phytoremediation of arsenic in CWs. The study comprised control and 2 phytoremediation treatments with P. purpureum plants: 39 mg kg^-1As alone and the application of 0.04% NPKS fertilizer with 39 mg kg^-1As. This experiment was carried out in CWs for 42 days. Bioavailable and total As were determined by ICP-OES. P. purpureum developed effectively in the phytoremediation treatment with 0.04% NPKS fertilizer application till the end of the experiment. The arsenic phytoremediation treatment with 0.04% NPKS fertilizer removed 72.54% bioavailable arsenic, 72.52% total arsenic, and 0.05% arsenic in the leachate of CWs. The fresh weight of P. purpureum rose considerably when treated with 0.04% NPKS fertilizer in comparison to the arsenic-alone treatment. The maximum efficiency of arsenic absorption at 42 days attained 5041.7 ± 120.4 mg kg^-1 DW in the phytoremediation treatment with 0.04% NPKS fertilizer application. These results suggest that phytoremediation treatments with 0.04% NPKS fertilizer can be used in As phytoremediation in anthropogenically polluted environments due to its high capability to uptake As.

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利用NPKS肥促进紫荆草生长及处理湿地中砷的植物修复

人工湿地中砷的植物修复正在成为世界范围内最有效、最环保、最可持续的技术。本研究旨在探讨施用NPKS肥对紫荆狼尾草（Pennisetum purpureum）生长的富集及植物对化粪池中砷的修复作用。本研究包括对照处理和紫荆植物修复处理2个处理：单独处理39 mg kg-1砷和施用含39 mg kg-1砷的0.04% NPKS肥。本试验在CWs中进行，为期42 d。ICP-OES测定生物利用度和总砷含量。0.04% NPKS施肥至试验结束，紫花假单胞菌在植物修复处理中发育良好。0.04% NPKS肥料对水煤厂渗滤液中生物有效态砷、总态砷和0.05%砷的去除率分别为72.54%、72.52%和0.05%。0.04% NPKS肥处理紫荆鲜重较单砷处理显著提高。施用0.04% NPKS的植物修复处理在42 d时砷的最大吸收效率为5041.7±120.4 mg kg-1 DW。综上所述，0.04% NPKS肥料具有较高的As吸收能力，可用于人为污染环境下的As植物修复。

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来源期刊

International Journal of Phytoremediation 环境科学-环境科学

CiteScore

7.60

自引率

5.40%

发文量

145

审稿时长

3.4 months

期刊介绍： The International Journal of Phytoremediation (IJP) is the first journal devoted to the publication of laboratory and field research describing the use of plant systems to solve environmental problems by enabling the remediation of soil, water, and air quality and by restoring ecosystem services in managed landscapes. Traditional phytoremediation has largely focused on soil and groundwater clean-up of hazardous contaminants. Phytotechnology expands this umbrella to include many of the natural resource management challenges we face in cities, on farms, and other landscapes more integrated with daily public activities. Wetlands that treat wastewater, rain gardens that treat stormwater, poplar tree plantings that contain pollutants, urban tree canopies that treat air pollution, and specialized plants that treat decommissioned mine sites are just a few examples of phytotechnologies.