Laboratory of Biochemistry, Biotechnology, Food Technology and Nutrition (LABIOTAN), Department of Biochemistry and Microbiology, University Joseph KI-ZERBO, Ouagadougou 03 BP 7021, Burkina Faso.
Soil-Water-Plant Laboratory, Institute of Environment and Agricultural Research, National Center for Scientific and Technological Research (INERA/CNRST), Ouagadougou 01 BP 476, Burkina Faso.
Int J Environ Res Public Health. 2024 Apr 23;21(5):519. doi: 10.3390/ijerph21050519.
The consumption of unsafe water in rural areas is a real public health problem in developing countries. This situation mainly affects children under five years of age and causes several deaths and many cases of malnutrition every year. The objective of this study was to evaluate and optimize the capacity of four local plant extracts in the potabilization of unsafe water. Thus, and seeds, or and mucilages were prepared in a solution and applied during a jar test as biocoagulants and bioflocculants on three raw water samples of 82.3 NTU, 549.8 NTU and 796.9 NTU. After treatment results showed that 0.9 g/L of Moringa biocoagulant or 1 g/L of Boscia biocoagulant applied with 0.4 mL of bioflocculant or 0.6 mL of bioflocculant reduced the turbidity of each water sample to values less than 5 NTU after only 15 min of decanting. Moreover, the sanitary quality of the water treated by these different extracts showed a perfect conformity of the physicochemical and microbiological parameters with the standards of acceptability in drinking water decreed by the World Health Organization. Thus, the application of these local plant extracts has made it possible to considerably improve the quality of unsafe water in record time. Their popularization could be an alternative in the fight against malnutrition related to the consumption of unsafe water, especially in rural areas.
农村地区不安全饮用水的消费是发展中国家一个真正的公共卫生问题。这种情况主要影响五岁以下儿童,每年导致数人死亡和许多营养不良病例。本研究的目的是评估和优化四种当地植物提取物对不安全水的净化能力。因此,将 和 种子或 和 黏液制备在溶液中,并在罐式试验中作为生物混凝剂和生物絮凝剂应用于三个原水样品,浊度分别为 82.3 NTU、549.8 NTU 和 796.9 NTU。处理结果表明,在仅 15 分钟的沉降时间内,应用 0.9 g/L 的辣木生物混凝剂或 1 g/L 的 Boscia 生物混凝剂,再加入 0.4 mL 的 生物絮凝剂或 0.6 mL 的 生物絮凝剂,可将每个水样的浊度降低至 5 NTU 以下。此外,经这些不同提取物处理的水的卫生质量表明,理化和微生物参数完全符合世界卫生组织规定的饮用水可接受标准。因此,这些当地植物提取物的应用使得在创纪录的时间内大大提高不安全水的质量成为可能。在与不安全水消费相关的营养不良斗争中,特别是在农村地区,推广这些植物提取物可能是一种替代方法。