COFCO Jiakang (Jilin) ​​Co., Ltd. Ninth Biogas Station 520m3/d aquaculture wastewater burden reduction design, equipment procurement and installation project

Project Summary

The company undertook the design, equipment procurement and installation project of the ninth biogas station of COFCO Jiakang (Jilin) ​​Co., Ltd. to reduce the burden of aquaculture wastewater and return it to the field.

The project adopts the "burden reduction and return to field" manure resource utilization process, which combines anaerobic fermentation of manure with aerobic in-depth treatment, retains the energy utilization path of biogas and biogas liquid, and combines nitrogen burden reduction, color reduction, and odor removal treatment to achieve integrated return of water and fertilizer to the field for utilization.

The pig farm manure is transported to the sewage collection tank in the station through a closed pipeline, and is processed by anaerobic fermentation to form biogas slurry and biogas residue; the biogas slurry enters the two-stage A/O aerobic biochemical treatment system for advanced treatment. During the non-fertilization period, it is stored in the biogas tank. During the fertilization period, it is transported to the field through pipelines for fertilizer utilization. The biogas generated during the anaerobic process is used for heating and power generation.