Sewage sludge treatment and disposal is becoming an essential issue in China. By analyzing current situation and problems in sludge treatment and disposal sector, this paper presented the feasibility of BOT model in sludge treatment and disposal facilities construction, and further established a specific BOT framework for sewage sludge treatment and disposal. This study identified two different BOT operational modes according to the sewage sludge production status in China. Based on summarizing the current challenges in China's sludge treatment and disposal BOT projects, suggestions were proposed.

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