On May 14, 2018, the water department of Sinopec Tianjin branch and Hanqi completed calibration of two sets of high-efficiency clarification systems. With The stable effluent quality and low chemical and energy consumption, the result was far exceeded expectation and passed the acceptances successfully.

Tianjin project is the first representative case of Sinopec's "clear water and blue sky" project that Hanqi participated in. Since 2016, Hanqi has fully participated in Tianjin, Maoming, Changling, and Zhong'an projects technical service in Sinopec group.

For Tianjin project, Hanqi supplied two sets of Turboflow high-efficiency sedimentation tanks for SS and total phosphorus removal to meet Tianjin B standard; for Maoming project, Hanqi supplied vertical flow circular degreasing tank and Turboflow high-efficiency sedimentation tank for removal of oil, hardness, silicon and total phosphorus. For Zhongan coal chmical project, Hanqi supplied the pacakage of Turboflow and booster softening clarifier for high hardness water treatment.