Survey of domestic wastewater treatment methods in Urayama, Chichibu city
2020
Takada, N. (Iwate University (Japan). Faculty of Agriculture, The Field Science) | Nagata, S.
The purpose of this research is to investigate the maintenance situation of individual septic tanks which treat domestic wastewater in the mountain villages. This goes along with low birthrates and the aging of the rural population. We then discuss the issues involved. To improve the sanitary situation, and the environmental conditions of mountain villages, which are usually in water resource areas, methods of domestic wastewater treatment have changed from vault-type toilet to septic tanks. The percentage of flush toilets is now 70% (2010) in mountain villages, but there still remains a disparity compared to urban areas. This research tried for a complete survey of all households (52) in Urayama, a mountain village in Chichibu-shi. The number of the usable answers was 43. Almost half of the households lived on pensions, and the percentage of those on an income of less than two million yen was 30%. Households with lower incomes, especially under two million yen, tend to feel the cost of cleaning is high. Financial aid to low-income households aiming to help them pay cleaning expenses will probably be necessary in the near future.
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