芒果叶粉去除罗丹明B的等温线和动力学研究

E. Vunain, Chosadziwa Nkhuzenje, J. Mwatseteza, S. Sajidu
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引用次数: 4

摘要

在本研究中,地下水样本是从马拉维南部法伦贝平原的十个钻孔中收集的。主要目的是评估井水是否适合人类饮用。采用标准方法测定了地下水样品的理化和细菌学参数。将结果与世界卫生组织(WHO)和马拉维标准(MS)饮用水准则进行比较,以评估适用性。所有物理化学参数的分析都在可接受范围内,除了两个钻孔的氟化物浓度水平超过世卫组织建议的1.5毫克/升限值(Lihaka小学2.9毫克/升,Phalombe T.C 2.0毫克/升)。微量金属污染低于原子吸收光谱法的检出限。在Lihaka小学(11 cfu/100 mL)、Migowi交易中心(4 cfu/100 mL)、Phalombe T.C (77 cfu/100 mL)、Thetheleya村(73 cfu/100 mL)和Mpasa T.D.C (102 cfu/100 mL)井的5个地下水样本中,粪便大肠菌群数量超过了WHO的耐受限值0 cfu/100 mg/L。结论是,并非所有的井水都可供人类安全饮用。一些钻孔中粪便大肠菌群的存在表明该地理位置的居民存在健康风险。该研究建议动员现场可能的地下水处理方法,如煮沸和使用氯化片,以防止可能的不利健康影响。关键词:细菌学,钻孔,马拉维,法伦比平原,水质,WHO/MS饮用水指南
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Mangifera indica leaves powder for the removal of rhodamine B.: isotherm and kinetic studies
In the present study, groundwater samples were collected from ten boreholes in the Phalombe plain, Southern Malawi. The main objective was to assess the suitability of the borehole water for human consumption. Physicochemical and bacteriological parameters of the groundwater samples were determined using standard methods. Results were compared to the World Health Organization (WHO) and Malawi Standard (MS) drinking water guidelines to assess suitability. All analyses for physicochemical parameters were within acceptable limits except for fluoride concentration levels which were above WHO recommended limit of 1.5 mg/L in twoboreholes (Lihaka Primary School, 2.9 mg/L and Phalombe T.C, 2.0 mg/L). Trace metal contamination was below detection limits with atomic absorption spectrometry. Feacal coliform units exceeding WHO tolerated limits of 0 cfu/100 mg/L were observed in five groundwater samples from Lihaka Primary School (11 cfu/100 mL), Migowi trading center (4 cfu/100 mL), Phalombe T.C (77 cfu/100 mL), Thetheleya Village (73 cfu/100 mL), and Mpasa T.D.C (102 cfu/100 mL) boreholes. It was concluded that not all the borehole water is safe for human consumption. The presence of feacal coliform in some boreholes is indicative of health risk to the inhabitants of the geographical location. The study recommends mobilization of onsite possible means of treatment of groundwater such as boiling and use of chlorination tablets so as to prevent possible adverse health effects. Keywords: Bacteriological, Borehole, Malawi, Phalombe Plain, Water quality, WHO/MS drinking water guidelines
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