Analysis on the Design and Operation of Xianhe River Artificial Wetland in Laiyang City
Wulong River is the largest river in Jiaodong,flowing through Qixia city and Laiyang city before emptying into the Yellow Sea,with Xianhe River being an important tributary.As a seasonal river in the north,the main source of water for Xianhe River during non rainy seasons is the tail water from the first sewage treatment plant in Laiyang city.However,the tailwater belongs to Class V slightly polluted water,which still poses a threat to the water quality and safety of the Wulong River Basin and even the bay.The water quality purification and ecological restoration project of the Xianhe artificial wetland adopts the combination process of"multi-stage surface flow wetland+ecological pond island"to ecologically purify the slightly polluted water of the Xianhe River,achieving the purification goal of improving the water quality from poor Class V to better than Class V.This project aims to restore the degraded ecosystem of Xianhe River through ecological restoration measures such as emergent plant belts,substrate restoration,artificial aquatic plants,biological retention ponds,and submerged plant ponds.This project utilizes urban river channels to construct water purification artificial wetlands and restore the river ecology,providing reference for water environment management projects with tight land use.
artificial wetlanddesignoperationslightly polluted watersurface flow wetlandecological pond islandXianhe River