On 14 March, UPM’s “Industrial Wastewater Methane Recovery Project of Bengbu Tushan Thermoelectricity Co., Ltd.” (CDM Ref. 6988) has had its first issuance of CERs. In total, 166,746 CERs were issued, thereof 52,083 CERs generated in 2012 and 114,663 CERs in 2013. The project is located at Bengbu City, Anhui Province, China and the project owner is Bengbu Tushan Thermoelectricity Co., Ltd.

Before the implementation of the project, the Anhui Fengyuan Fuel Alcohol Company produced 320,000 tonnes of ethanol fuel per year while discharging about 11,500 m3 of wastewater per day with a primary COD of 35,000mg/L. The organic wastewater merely was pre-treated in open lagoons, followed by an oxidation ditch facility, before being discharged into a local wastewater treatment plant.

The Tushan Wastewater Methane Recovery Project aims to recover biogas generated from the open wastewater treatment lagoons. The main project constructions are newly-built MIC anaerobic reactors, a biogas cleaning system, a biogas coal-firing system and a retrofitting aerobic treatment facility. After the implementation of the project, the biogas generated from MIC anaerobic reactors is firstly being sent to the purification system, then the purified biogas is transported into the retrofitted coal-fired boilers to generate steam. The sludge from the wastewater treatment is combusted in the boilers after dewatering and drying. When the boiler is in trouble due to failure or malfunction or under maintenance, biogas collected from the MIC reactor will be flared.

Thus, the project reduces GHG emissions not only through avoidance of methane emissions originating from inadequate wastewater treatment processes but also through the substitution of coal by biogas for steam generation.

For further information on this wastewater treatment project and the availability of its Green CERs with full EU ETS eligibility, please contact:

Ms Gaiai Guo, Vice General Manager, UPM China
guog(at)upm-cdm.eu, T: +86 10 6468 0500-13


Martin Dilger, Managing Director, UPM Germany
mdilger(at)upm-cdm.eu, T: +49 89 41419691

For official CDM information and related documentation about the project, please visit the UNFCCC CDM project database.

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