The new district "Yunhe Chang" guards the blue waves and clear streams

According to this newspaper (reporter Wu Yutao), "The sewage discharge is less, and the water quality is getting better and better, as if I saw the clear and meandering Filial Piety Creek of my childhood." Yesterday, Yu Xiaofang, a resident walking along the Xiaoshun Creek Greenway, described the changes in Xiaoshun Creek.

As a river with a large river basin area in Jinyi New District, Xiaoshun Creek carries the love of generations of new district people for their hometown, but due to the continuous development of industry and agriculture in the surrounding area, the creek is affected by factors such as livestock and poultry breeding pollution and industrial pollution, and once became a "black and smelly river".

In recent years, the relevant departments of the new district have continued to improve the water environment and water ecology of Xiaoshun Creek, which has greatly changed The water environment and surrounding areas of Xiaoshun Creek. How to do a good job in river environmental protection and keep this hard-won governance achievement has become the top priority. To this end, Jinyi Development Group and Beihang Jinhua Beidou Application Research Institute have designed an online monitoring system for underground pipe network flow based on the Internet of Things, which implements grid monitoring of the liquid level, flow rate, flow rate and flow of the Dongcheng underground pipe network, creates a "smart pipe network" feature service, and improves the water environment in Dongcheng.

"Through the construction and development in recent years, the construction of urban sewage treatment facilities in the Dongcheng area has basically achieved full coverage, but there are still problems in sewage treatment work." Zhao Hui, the relevant person in charge of Jinyi Development Group, said that the weak links in sewage treatment such as the blank area of the sewage pipe network of the urban-rural interface, the direct discharge of domestic sewage along the urban water body, the backfill irrigation of rivers and lakes, the misconnection of rain and sewage, the rainwater pipe of the diversion system, the rainfall erosion pollution of the shunt system rainwater pipe, and the rainfall overflow pollution of the combined flow system pipe will eventually affect the sewage treatment efficiency.

It is understood that in the past, inspectors to carry out underground pipe network water quality monitoring work, need to be through manual sampling, laboratory analysis, there are many problems. For example, the amount of data is small, the sampling interval is long, the phenomenon of sneaking and leaking is repeatedly prohibited, and the governance work is heavy, the scope is large, the cycle is long, and the cost is high, making it difficult to respond to and prevent emergencies. The construction of automatic monitoring stations needs to face difficulties such as high construction and maintenance costs, long construction periods, and difficulties in large river basins, large-scale promotion, and limited coverage.

"The newly developed underground pipe network flow online monitoring system can rely on small, low-cost, short construction period and other miniaturized, low-cost, short construction period of high-tech such as COD sensors and flow rate sensors to expand the scope of hierarchical distribution points and realize remote detection of underground pipeline water quality." Chen Qianwei, a staff member of Beihang Jinhua Beidou Application Research Institute, introduced the digital platform of the system on the computer. On the main page of the pipe network route diagram, the data information of each monitoring point is unobstructed.

"Through the digital platform, we can pay attention to the big data display interface in real time and accurately locate the source of pollution." In addition, the platform will also push alarm information in a timely manner, so that we can grasp the scene situation of emergencies at any time. At a fixed time node, the platform will also analyze the historical data based on the data report and provide long-term feedback on the governance effect. Chen Qianwei said.

In order to facilitate the relevant staff to monitor water quality in real time, the digital platform also supports mobile operation on mobile phones. "Click on the water environment detection platform App on your phone to view the situation of each monitoring point, which is very convenient." If we find that there are problems such as abnormal flow and excessive water quality at a certain township monitoring point during a certain period of time, we can report the information at the first time or go to the scene for treatment, which greatly reduces the amount of sewage discharge. Zhao Hui said that after a period of use, it feels that the digital system can not only achieve real-time monitoring of water quality of the pipe network, but also accurately control the direction and area of governance and reduce the cost of governance.

"Cloud River Chief" took up his post to achieve a wide range of hierarchical distribution points and accurately locate pollution sources. It only takes a few minutes of reporting cycle to allow staff to grasp the situation of illegal discharge and leakage of sewage in enterprises in a timely manner, effectively respond to and prevent emergencies, and maintain long-term sewage treatment results. In addition, the system's urban waterlogging warning helps to efficiently promote the diversion of rain and sewage from the underground pipe network in the region to achieve zero direct discharge of sewage. From "water management" to "smart water", the new district uses "smart pipe network" to help water environment governance and guard the clear flow of blue waves.

【Source: Jinhua Daily】