The Dalanzadgad New Wastewater Treatment Plant () is a wastewater treatment plant in Dalanzadgad, ÃÂmnögovi Province, Mongolia.
Due to the overcapacity of the existing old treatment plant, a new treatment plant should be constructed. The groundbreaking ceremony for the construction of the new plant was held on 4 January 2018 at the Ministry of Construction and Urban Development. The construction was completed in 2019 by N A.B, S&A Trade, San and Baiguulamj companies. Test run of the plant was carried out in the first half of 2020. In June 2020 the plant went into full operation.
The plant stands at a total ground area of 1.8 hectares.
The plant has a water processing capacity of 3,000 m<sup>2</sup> per day.
The plant was constructed with a cost of US$21.17 million. About 92% of the funding was provided by a loan from Asian Development Bank and the remaining 8% was provided by the Government of Mongolia.