Status of Constructed Wetlands in Nepal: Recent Developments and Future Concerns

• 영문명: Status of Constructed Wetlands in Nepal: Recent Developments and Future Concerns
• 발행기관: 한국습지학회
• 저자명: Sher Bahadur Gurung Franz Kevin F. Geronimo Soyoung Lee Lee-Hyung Kim
• 간행물 정보: 『한국습지학회지』제19권 제1호, 45~51쪽, 전체 7쪽
• 주제분류: 자연과학 > 지질학
• 파일형태: PDF
• 발행일자: 2017.02.01

영문 초록

Nepal is a landlocked mountainous country in South Asia, located between China to the north and India to the south, east, and west. As such, wastewater management has become one of the most significant problems in urban area of Nepal. In Nepal, the centralized wastewater treatment systems were dysfunctional due to high cost of operation, discontinuous power supply, lack of proper maintenance and proper technical workforce to address the issues. As such, constructed wetlands (CW) were applied to treat various secondary wastewater as alternative to wastewater treatment facilities. Generally, efficiency and sustainability of CW technology depends on proper operation and maintenance and active community involvement. This study summarizes information about 26 CW in Nepal. Specifically, factors including data banking, removal efficiency, quality of discharged water, compliance to water quality standard of Nepal and operation and maintenance were investigated. Considering removal efficiency per pollutant, Ka-1 achieved the greatest reduction for most pollutant followed by B-1, L-3, Ka-5 and K-1. Nepal has practiced CW technology for more than 2 decades but currently, development of technology was interrupted by the inefficient performance of existing facilities. Public awareness about the technology, natural disaster, unavailability of specified substrate materials, lack of fund for further research and experiments has hindered the expansion of technology. In spite of these concerns, CW was still proven as an alternative solution to the present wastewater problems in urban areas of Nepal.

목차

1. Introduction

2. Material and Methods

3. Results and Discussion

4. Conclusion

References

키워드

Constructed Wetland Development Nepal Secondary Wastewater treatment