The project is jointly developed by Luohuang Power Plant and Chongqing Water Affairs Group, including the sludge drying system and the supporting system in the plant.The project was total contracted by TIC Technology Co., Ltd.

After thermal drying and crushing, the urban domestic sludge can be sent to the boiler for combustion and power generation, and the odor, waste water and other pollutants generated in the process can be fully enclosed and harmless, so that no pollutants will leak out in the whole process. The first phase of the project that has been put into operation has a treatment capacity of 600 t/d, adopts 6 disc drying lines, can handle nearly 200,000 tons of domestic sludge every year, increases biomass power by 49 million kWh, and increases external heat supply by 174,000 tons, bringing comprehensive benefits to the power plant exceeding 10 million yuan. At the same time, the project has achieved remarkable results in energy saving and consumption reduction, saving 14,800 tons of standard coal and reducing carbon dioxide emissions by 41,400 tons per year.

The wet sludge is injected into a columnar ultra-disc dryer, and is dried by multi-layer propulsion and agitation to reduce the moisture content from 80% to 30%, and then sent to the power plant boiler as biomass fuel for combustion and power generation. Each ton of sludge is equivalent to 0.4 tons of ordinary coal, and the daily power generation can reach 100,000-150,000 kwh.

The residual fly ash after sludge power generation can be used as a very good raw material for concrete and light building materials. The whole process of sludge treatment is sealed, the waste water generated will be reprocessed, and the waste gas will enter the boiler for combustion, completely realizing "zero" emission.

The project has recently been listed by the National Energy Administration and the Ministry of Ecology and Environment as a pilot project for technical transformation of coal-fired coupled sludge power generation.