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This paper discusses the implementation of Tiger Worm Toilets (TWTs) as a sustainable alternative to pit latrines in areas with challenging environmental conditions. The study was carried out in Koinadugu, Sierra Leone, where TWTs were installed in 200 households, providing safe sanitation for approximately 1,200 individuals within a 17-month period. The study reveals that TWTs offer several benefits over traditional pit latrines, including higher cost efficiency. Despite some setbacks, TWTs have been well-received by the local communities, resulting in a significant reduction in open defaecation in areas where latrines are not viable. The study presents areas of further research and concludes with recommendations for future TWT designs based on the lessons learned.

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本文讨论了在环境条件恶劣的地区实施虎虫厕所（TWT）作为坑式厕所的可持续替代方案。该研究在塞拉利昂科伊纳杜古进行，那里的 200 个家庭安装了 TWT，在 17 个月内为大约 1,200 人提供了安全的卫生设施。研究表明，与传统坑式厕所相比，TWT 具有多种优势，包括更高的成本效率。尽管遇到了一些挫折，排污管仍受到当地社区的欢迎，导致无法建立厕所的地区露天排便现象大幅减少。该研究提出了进一步研究的领域，并根据吸取的经验教训对未来行波管设计提出了建议。