Municipal Sludge Treatment Plant

Municipal sludge treatment plant, operated by Dalian Dongtai Organic Waste Treatment Co., Ltd., a 52% owned subsidiary of Dalian Dongtai, is the first BOT project to implement centralized sewage sludge treatment in China It is designed to engage in municipal sludge treatment for 20 years excluding construction period. Its designed processing capacity of sludge is approximately 600 tons per day.

The project adopts anaerobic fermentation as the core technology. The core treatment equipment is imported from Germany Lipp Company. Lipp anaerobic fermentation technology has been widely used in the other projects around the world. The Plant can generate methane11, 000-16,000 cubic meters per day, with methane as primary product, and slurry, residue as side product. It also can reduce the release of CO2 by 100,000 tons per year. Purified methane can be generated after the biogas has been thoroughly processed. Slurry and biogas residue can be processed into high quality phosphate fertilizer, humus and landfill cover soil.

This project had been under construction since April 2007. And currently, the first 6 tanks have been put into commercial operation, and the other 6 ones are completed but still in test phase, since the first 6 tanks can meet the current sludge processing demand. As the amount of municipal sludge expands, the other 6 tanks will also be put into commercial operation. And then the whole facility will be into full operation. Furthermore, the methane can be distributed through the network to end-users in Dalian, which can bring the company a stable cash flow. The project has generated revenues since January 2010 from service fees paid by the local government and from sales of biogas (methane) to Dalian Gas Company, which it uses for resale as cooking fuel in Dalian City. Dongtai Organic’s revenues from both sludge processing fees and sales of biogas are calculated on a volume basis. The payment of sludge processing fees is the responsibility of the local government and is paid every quarter, while payment for sales of biogas (methane) is made on a monthly basis.

Our municipal sludge treatment was featured by CCTV9 on its Dec. 20th, 2009 Newshour program. For the further more report details, please check “http://www.chinaciwt.com/pressrelease.asp?page=3&nid=”, “CCTV9 Report about Dalian DongTai Organic Waste Treatment Co., Ltd.” to read.