COD Analyzer Point Distribution and Detection Strategy in River Monitoring

In river monitoring, COD is a key indicator to measure the degree of organic pollution in water bodies, and COD Analyzer plays an important role.

1. Point Distribution Strategy

Source and Tributaries

The water quality of the source of a river often reflects the initial state, and basic data can be obtained by distributing points at the source. At the same time, the confluence of various tributaries will affect the water quality of the main stream, so setting up monitoring points before the main tributaries merge into the main stream can timely detect the pollution caused by the tributaries.

Cities and Industrial Areas

There is a large amount of domestic sewage discharged in cities. Setting up multiple monitoring points downstream of cities can evaluate the impact of domestic sewage on river COD. For rivers near industrial areas, according to the distribution of factories, points are distributed at a certain distance downstream of the factory outlet, focusing on the impact of industrial wastewater discharge on the river.

Uniform distribution

Points are evenly distributed along the river at a certain interval, such as setting a point every 5-10 kilometers. This helps to fully grasp the COD level of different sections of the river and timely discover the changing trend of potential pollution areas.

2. Detection strategy

Regular detection

Set a fixed detection cycle, such as a comprehensive detection every month or quarter. This can form time series data, analyze the change pattern of river COD over time, and provide a basis for seasonal pollution prevention and control.

Event-driven detection

After special events such as floods and rainstorms, timely detection is carried out. These events may wash surface pollutants into the river or change the flow state of the river, thereby affecting the COD content.

Multi-depth detection

The water quality at different depths in the river may vary. Use COD Analyzer for layered detection, such as surface, middle and bottom layers, to comprehensively evaluate the overall pollution status of the river.

Comparative detection

Conduct comparative detection before and after taking pollution control measures in the same season or at the same location in different years of the river to evaluate the effectiveness of the control measures and provide scientific data support for subsequent river protection and pollution control.

Through reasonable site layout and detection strategies, the role of COD Analyzer in river monitoring can be fully utilized to effectively protect the river ecological environment.