当前位置: X-MOL 学术Int. J. Phytoremediat. › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Field testing phytoremediation of organic and inorganic pollutants of sewage drain by bacteria assisted water hyacinth
International Journal of Phytoremediation ( IF 3.7 ) Pub Date : 2020-08-06 , DOI: 10.1080/15226514.2020.1802574
Yusra Mahfooz 1 , Abdullah Yasar 1 , Qamer Ul Islam 2, 3 , Rizwan Rasheed 1 , Urooj Naeem 1 , Sidra Mukhtar 1
Affiliation  

Abstract

The study was carried out to identify the potential of phytoremediation within a flowing drain through Eichhornia crassipes in combination with two bacillus species to treat the inorganic and polycyclic aromatic hydrocarbons (PAHs) from industrial effluent at Kala Shah Kaku (KSK), Lahore, Pakistan. Results showed that the highest metals removal efficiency was found in Cr, Pb, Ni, and Cu as 72.4, 83.3, 82.35, and 63.63%, respectively. However, biochemical oxygen demand (BOD) and chemical oxygen demand (COD) removal efficiencies were also considerably higher (66.66 and 66.67%). The BOD, COD, sulfates, phosphate, and total dissolved solids (TDS) showed a higher reduction rate as 1442.7, 1967.3, 1148.2, 7225.4, and 911.5 g m−2 d−1, respectively. Chlorophyll a + b and carotenoid contents were decreased from 7.92 to 5.78 mg kg−1, 3.03 to 3.01 mg kg−1, respectively and total nitrogen was increased from 22 to 27 mg kg−1 in E. crassipes. Bio-concentration factor was higher for all metals and the maximum was found in Cr (<1). The reduction efficiency of ƩPAHs was found up to 60% with different rings structure. The use of Bacillus safensis strain showed the higher percentage reduction for BOD, nitrates, sulfates, and phosphates. The Study provide practical reference for bacterial assisted phytoremediation of urban drain.



中文翻译:

细菌辅助的风信子对植物排泄物中有机和无机污染物的现场测试

摘要

这项研究的目的是确定通过凤眼莲与两种芽孢杆菌结合处理来自巴基斯坦拉合尔Kala Shah Kaku(KSK)工业废水中的无机和多环芳烃(PAHs)的流动排水中的植物修复潜力。结果表明,Cr,Pb,Ni和Cu的最高金属去除效率分别为72.4%,83.3、82.35和63.63%。但是,生化需氧量(BOD)和化学需氧量(COD)去除效率也相当高(66.66和66.67%)。BOD,COD,硫酸盐,磷酸盐和总溶解固体(TDS)的还原率更高,分别为1442.7、1967.3、1148.2、7225.4和911.5 gm -2 d -1, 分别。叶绿素a + b,类胡萝卜素含量从7.92降低到5.78毫克千克-1,3.03至3.01毫克千克-1,分别和总氮从22增加至27毫克千克-1凤眼莲。所有金属的生物富集系数都较高,并且在Cr中发现最大值(<1)。发现不同环结构的ƩPAHs的还原效率高达60%。安全芽孢杆菌菌株的使用显示出BOD,硝酸盐,硫酸盐和磷酸盐的百分比降低更高。该研究为城市排水的细菌辅助植物修复提供了实用参考。

更新日期:2020-08-06
down
wechat
bug