2026-03-12T16:24:45Z https://chikyu.repo.nii.ac.jp/oai

oai:chikyu.repo.nii.ac.jp:00001889 2023-12-19T02:33:36Z 247:248:249

Potential of Treated Wastewater Reuse for Agricultural Irrigation in Ouagadougou, Burkina Faso Potential of Treated Wastewater Reuse for Agricultural Irrigation in Ouagadougou, Burkina Faso 道中, 敦子 ミチナカ, アツコ 土方, 野分 ヒジカタ, ノワキ 重村, 浩之 シゲムラ, ヒロユキ 川住, 亮太 カワスミ, リョウタ 山下, 洋正 ヤマシタ, ヒロマサ 高島, 英二郎 タカシマ, エイジロウ 高橋, 正宏 タカハシ, マサヒロ MICHINAKA, Atsuko HIJIKATA, Nowaki SHIGEMURA, Hiroyuki KAWASUMI, Ryota YAMASHITA, Hiromasa TAKASHIMA, Eijiro TAKAHASHI, Masahiro Irrigation, Grey Water, Sahel Africa, High Rate Algal Ponds application/pdf Ouagadougou, the capital city of Burkina Faso, is located in dry savanna and the issue of water scarcity is of particular concern since water shortage affects the local economy. Treated wastewater from treatment plants can be reused for irrigation. Currently, stabilization ponds are widely used in Ouagadougou, however, the effluent could adversely affect crop production due to low water quality, especially during the dry season. Therefore advanced pond systems are required. This study focuses on wastewater management in urban areas, and discusses the application of high-rate algal ponds (HRAPs) to treated wastewater reuse for agricultural irrigation. Compared with conventional stabilization ponds, HRAPs indicated a lower risk of microbial pathogen contaminants in treated water and higher removal efficiency of nutrients from wastewater. When the effluent from stabilization ponds and HRAPs were used as irrigation water, the estimated yields of tomato production were expected to be 10,208 t and 17,488 t, respectively. Since HRAPs have the advantage of a significantly shorter HRT compared to stabilization ponds, evaporation loss is reduced. Thus, when introducing sewage treatment, it is necessary to consider not only the impact of effluent on the environment, but also the value of irrigation water. サニテーションプロジェクト 2017-11 eng article VoR https://chikyu.repo.nii.ac.jp/records/1889 https://doi.org/10.34416/svc.00003 http://www.chikyu.ac.jp/sanitation_value_chain/ サニテーションプロジェクト http://www.chikyu.ac.jp/ 総合地球環境学研究所 2432-5066 SANITATION VALUE CHAIN SANITATION VALUE CHAIN 1 1 27 34 https://chikyu.repo.nii.ac.jp/record/1889/files/03.pdf application/pdf 531.2 kB 2018-03-28