Tiexi Road, Taizihe District, Liaoyang City. According to Baidu Map query, Liaoyang Xinkaihe Sewage Treatment Plant is located at Tiexi Road, Taizihe District, Liaoyang City. Liaoyang, known as Xiangping and Liaodong City in ancient times, is a municipality under the jurisdiction of Liaoning Province. It is a modern industrial city focusing on the petrochemical industry and one of the central cities in central and southern Liaoning.