Construction work on a 160- million-yuan sewage treatment plant has been completed at the development zone of Tianjin, the largest port city in north China.

The plant covers an area of 6.71 hectares and is able to serve enterprises and residents in the zone by disposing 100,000 tons sewage per day.

With world-advanced technology, the operation of the plant will make it possible for all the sewage in the development zone to be treated, reducing pollution to seawater and helping improve environment and attract investment.