This project involved the design, construction and operation of a wastewater treatment facility, with a combined wastewater treatment capacity of 40,000 tons per day. Its treatment process features technology designed to treat a mixture of municipal and industrial wastewater.
|Project Location||Rugao ETDZ, Rugao City, Nantong City, Jiangsu Province, China|
|Project Company||Rugao Hengfa|
|Wastewater Treatment Type||Municipal and industrial wastewater|
|Total Investment Amount
up to 31 May 2014
| Approximately HK$28.9 million (Phase I)
Approximately HK$61.0 million (Phase II)
Approximately HK$2.0 million (Improvement works carried out in January 2014)
Date of Concession Period
| Phase I: 7 February 2007
Phase II: 29 April 2010
|Highlights||This is our first integrated wastewater treatment facility that has the capability of treating a mixture of municipal and industrial wastewater|
Treatment of municipal and industrial wastewater
Wastewater treated by the Rugao Hengfa Facility comprises both municipal and industrial wastewater discharged from Rugao ETDZ. To deal with the added industrial effluent, chemical agents are introduced early in the process to facilitate the precipitation of industrial compounds. The process generally consists of four stages whereby wastewater is pre-treated with chemicals, before being subjected to biological reactions, chemical reactions and disinfection.