由当地可用的材料组成的简单水处理技术可能是有用的 造福于发展中国家农村地区的人们。示例技术包括 用纱布过滤，用阳光灭活，用柑橘消毒 酸。使用三个指标/替代指标矩阵对这些技术进行了研究 生物体:细菌（大肠杆菌）、病毒（MS2大肠杆菌噬菌体）和原生动物的替代物 囊肿和卵囊（需氧细菌孢子）。虽然研究结果仍将公布，但 研究表明，使用酸橙和柠檬汁进行酸化和太阳能消毒 提供了对抗病原体替代物的重要措施。未来研究 将包括额外的太阳能消毒研究和需氧细菌的整合 孢子进入研究基质。包括8个参考文献、图表。

Simple water treatment technologies composed of locally-available materials can be of benefit to people in rural areas of developing countries. Example technologies include filtration through a sari cloth, inactivation using sunlight, and disinfection using citrus acids. These technologies were studied using a matrix of three indicator/surrogate organisms: a bacteria (E. coli), a virus (MS2 coliphage), and a surrogate for protozoan cysts and oocysts (aerobic bacterial spores). While results are still forthcoming, research has shown that both acidification using lime and lemon juice and solar disinfection provided a significant measure of protection against pathogen surrogates. Future research will include additional solar disinfection studies and the integration of aerobic bacterial spores into the research matrix. Includes 8 references, figures.