In 2019
This is a demonstration project for stormwater management under SinoWaterT3, a Sino-German cooperation project. It is committed to achieving rainwater and sewage diversion and overflow control, easing the treatment burden of the sewage treatment plant and reducing the pollution load of the receiving water body in case of overflow on rainy days in Xiaolugou.
A complete set of unpowered automatic control equipment is adopted, the equipment in the interception well can automatically control its opening and closing to achieve the interception of sewage in the dry season and initial rainfall water. For specific process introduction, please refer to the collaborative paper between Guhong Environmental Protection and Kunming Dianchi Investment Co., Ltd. on node transformation technology and its application practice for improving the quality and efficiency of drainage systems (Water Supply and Drainage, Volume 2020-M46, Issue 458).