Aeration system start-up at the sewage treatment plant for Shanyin-city In October-November 2011. ESMIL delivered and mounted the aeration system at WWTP of Shanyin-city(Shanxi, Peoples the Republic of China). It is the first project, realized as a part of the agreement between ESMIL and our permanent representatives in PRC – WOTEER company. We are sure, that this business partnership will be effective and long-term.