STCC sewage treatment and deep purification technology" is a new type of multi-media filler aeration biofilter, is the Wuhan Xintiandamei Environmental Science and Technology Co., Ltd. in the digestion and absorption of domestic and foreign advanced technology on the basis of the application of practice and summarize the results of development and research in accordance with China's national conditions. The technology adopts charcoal and other natural materials, processed into fillers to form packed beds, and the effluent after treatment of urban sewage is better than the national "urban sewage treatment plant pollutant discharge standards" (GB18918-2002) of the first class A standard, and can reach the national "surface water environment quality standards" (GB3838-2002) It can reach the class IV standard of the national "Environmental Quality Standard for Surface Water" (GB3838-2002). Its technology is characterized by the combination of biological oxidation and filtration, excellent effluent water quality, small footprint facilities. The technological innovation is the use of a new type of filler "unsaturated carbon", which provides a good composite metabolic environment for microorganisms and improves the purification efficiency.
STCC technology, the structure of the pool unit is very similar to the aeration of biological filtration (BAF), characterized by the use of ascending flow, the filter media used in granular or block, submerged in the water without suspension. Each unit consists of the following parts: ① water distribution device ② filler support base and support materials ③ various media filler ④ aeration or backwash gas pipeline ⑤ sludge extraction device ⑥ roof ⑦ treated water and discharge equipment. Its structural form of steel concrete, small-scale sewage purification can also be used for integrated treatment devices.