The construction of the advanced wastewater treatment facility at Lu’an Coal-based Synthetic Oil Company has been completed

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Completion of the advanced wastewater treatment project at Lu’an Coal-based Synthetic Oil Company / Source: Date: 2018-12-17 Clicks: 22 The advanced wastewater treatment project at Lu’an Coal-based Synthetic Oil Company began in March 2018, and was successfully completed according to the planned schedule. Once this project is put into use, it will **improve the quality of recycled water and make-up water used by coal-based synthetic oil companies. 　　The tailwater advanced treatment project is divided into 8 major units, namely: high-efficiency sedimentation tank, stabilization tank, three-phase catalyst reactor, short-path nitrogen removal tank, functional rooms, storage tank area, hydrogen peroxide storage tank area, and power distribution room. This project utilizes Nanjing Shenkelong’s advanced three-phase catalysis technology for the advanced treatment of wastewater, thereby achieving zero discharge of biochemical wastewater. 　　In the advanced treatment of tailwater, the originally unqualified biochemical wastewater undergoes processes such as short-term denitrification, inclined plate sedimentation, and magnetization. It then passes through a type-1 short-term denitrification filter, a lift pump tank, and enters a three-phase catalyst reactor where a dual-oxidation reaction takes place. After that, it goes through a stabilization tank for further oxidation, and finally reaches a high-efficiency sedimentation tank for solid-liquid separation. The solids are sent to a sludge drier via a sludge pump to be compressed into sludge cakes, while the liquid, after settling, flows automatically to a type-2 short-term denitrification tank for a second magnetization process. After this reaction, part of the water is sent to the recycled water network for reuse, while the remaining water goes into an intermediate water tank. 　　The three-phase catalytic oxidation advanced treatment technology combines magnetization and catalytic oxidation processes; through the combined action of these two methods, COD levels can be reduced rapidly and significantly. Meanwhile, the chromophoric groups in organic molecule structures are broken apart during the COD degradation process, thereby achieving deep decolorization. Chemical reactions are also used to reduce the concentrations of total phosphorus, Fe2+, and F2+, ensuring that various emission standards are met.