黑龙江省齐齐哈尔市城区排水工程,历时6年的修建,已于1987年底竣工投付使用。这项工程主干线长32公里,日排出污水能力4～20万立方米,可使全市每天产出的污水,都可全部排出。过去,齐市城区排水设施少,不成系统,使污、雨水淹没一些农田、草原和居民。排水工程建成后, Qiqihar City, Heilongjiang Province urban drainage project, which lasted 6 years of construction, has been completed and commissioned in late 1987 to use. The main trunk line length of 32 kilometers, the daily discharge of sewage capacity of 4 to 200,000 cubic meters, enabling the city’s daily output of sewage, all can be discharged. In the past, there were few drainage facilities in the urban areas of Qi City, making it a system that inundated some farmland, grassland and residents with sewage and rainwater. After the drainage project is completed,