The standards for irrigation water are lower, and nitrates and phosphates in wastewater can serve as nutrients for paddy-field rice. The United States, Japan and other nations have long been using it thus. Yet, because Taiwanese farmers regard treated wastewater skeptically and because no associated legal framework has yet been established, there is still a long way to go before it is used here.
他表示，灌溉用水的水質要求較低，污水中的氮、磷也是水稻的養分，美、日等國早已行之有年，但由於台灣農民對處理過的污水仍有疑慮，也缺乏法令配套，還有很長的路要走。