On March 6 2017,the associate professor Liqing of Huazhong Agricultural University signed the"large-scale biogas integrated engineering design and project research and development Agreement." with Lou Yuanmin,the chairman of Hi-tech Kingdo Industrial Co., Ltd.The successful signing of this agreement marked the formal establishment of the long-term strategic cooperative relationship between the two sides.

After the signing ceremony, the two sides conducted a cordial and in-depth conversation on the content of cooperation, which involved the design of biogas fermentation engineering, the purification of biogas products, the treatment and utilization of biogas slurry and residue ,and construction of school-enterprise cooperation research center and other areas. The treatment and application of biogas residue were emphatically discussed , and a definite reform plan was put forward for the problem of secondary pollution caused by biogas residue in existing biogas engineering. The two sides attached great importance to the cooperation, and reached a consensus on the cooperation.