Liling Yingfeng Zhonglian Environmental Industry Co., Ltd. is a subsidiary of China National Heavy Machinery Corporation's environmental division, specializing in the harmless treatment of garbage and urban waste removal services in Liling City. The landfill area covers over 20,000 square meters. The company sprays a special garbage deodorizer four times a day at 8:30, 10:30, 15:30, and 18:00.

The main odors in the landfill are primarily hydrogen sulfide and ammonia. After diluting the garbage deodorizer 200 times and spraying it, the site is virtually free of noticeable foul odors. Third-party on-site sampling and testing have shown that the removal rates of hydrogen sulfide and ammonia can reach 90%, and the removal rate of odor concentration on-site can exceed 95%. The on-site treatment effect meets the requirements of the group company.

 After treatment, the smell has significantly improved, with no pungent sensation. After diluting the garbage deodorizer 200 times and spraying it, the site is virtually free of noticeable foul odors. Third-party on-site sampling and testing have shown that the removal rates of hydrogen sulfide and ammonia can reach 90%, and the removal rate of odor concentration on-site can exceed 95%. The on-site treatment effect meets the requirements of the group company.