Rotary Thailand Village Water Supply Case Study | KATADYN Drip Gravity Filter System Improves Drinking Water Hygiene
Families in Ban Bo Ong and Wang Hin, Thailand, though in different regions, faced the same problem: contaminated water sources, leading to recurring diarrhea among children and residents.
Rotary District 2000, Switzerland, selected 60 of the most in-need families in each village and deployed KATADYN Drip Filter Ceradyn to improve daily drinking water using electricity-free ceramic gravity filters.
案例原始資料｜Original Case Information
兩個村落，相同的飲水問題｜The Challenge
Ban Bo Ong is located near the Khao Laem Reservoir, close to the Myanmar border. The village has about 400 households, no roads, electricity, or communication facilities. Residents rely mainly on lake water and rainwater; the original case indicated that local water sources were severely contaminated.
Wang Hin is located in an area near the Laotian border, with about 300 households. Children in the village frequently suffered from diarrhea, and families needed a drinking water treatment method that did not rely on electricity and could be operated daily at home.
重力完成的家戶濾水｜The Solution
The Drip Filter Ceradyn consists of two 10-liter containers (upper and lower) and three ceramic filter elements. After adding raw water to the upper layer, the water passes through the ceramic filter elements by gravity and then flows into the lower container for clean storage. No electricity, pumps, or complex piping are required.
Families fill the upper container 2 to 3 times daily to obtain their daily supply of filtered drinking water. When the flow rate of the ceramic surface decreases due to sediment, it can be scrubbed according to the operating instructions to restore filtration efficiency.
健康改善與後續擴大｜Project Outcome
The case documented that approximately two months after the system's implementation, the incidence of diarrhea in both villages almost disappeared. Rotary subsequently planned to extend this approach to more regions, with the original case mentioning a goal of expanding to up to 60 villages.
This outcome resulted from continuous daily use by families, rather than a one-time large-scale project. The equipment operates without electricity or fixed pipelines, allowing filtration to occur where drinking water is truly needed.
Learn more about KATADYN Drip Gravity Filtration Systems
KATADYN Taiwan 對案例的理解
When public water and electricity supplies are unstable, household gravity filtration can integrate water treatment directly into daily life.
The results from the two villages also show that equipment must be easy to operate, easy to clean, have sufficient flow, and be continuously manageable locally.
For remote locations, post-disaster shelters, group camps, and community preparedness, key considerations for gravity filtration systems include raw water turbidity, daily consumption, container cleaning, filter element maintenance, and user education. The equipment itself is just the starting point; correct operation ensures a continuous water supply.
資料來源｜Sources
原廠線上案例：Rotary District 2000, Switzerland | Combat diarrhea in Ban Bo Ong and Wang Hin
原廠案例 PDF（本站備份）：下載原廠案例 PDF