Groundwater

As an important component of the human living space, groundwater provides high-quality freshwater resources for humanity. However, with the increasing severity of environmental pollution in China, groundwater pollution caused by human activities has expanded from point-source to area-source pollution. Not only is groundwater itself polluted, but it also serves as a major medium for land pollution. Carrying out comprehensive online monitoring of groundwater hydrology and water quality, and fully mastering relevant indicators such as the distribution, variation laws, water quantity, and water quality of groundwater, can provide reliable monitoring data for scientific water use and water conservation, and offer support for decision-making on the development and utilization of groundwater resources.

According to the requirements of GB/T 14848-2017 Quality Standard for Groundwater, the online monitoring indicators for groundwater quality are as follows:

Table 1: Selection of Sensors and Analyzers

Parameter Type

Basic Core Indicators

Specific Pollution Risk Indicators

Burial Depth Indicator

Parameter Type

pH, Dissolved Solids (Conductivity), Turbidity, and Temperature

Ammonia Nitrogen, Nitrate, Nitrite, Volatile Phenols, Cyanide, Arsenic, Mercury, Hexavalent Chromium, Total Hardness, Permanganate Index, Chloride, etc.

Water Level

Product Selection

AL4030 Digital pH Sensor
AL4060 Digital Turbidity Sensor
AL4040/AL4041 Digital Conductivity Sensor

AL4020 Spectroscopic On-line Water Quality Analyzer
AL4010 UV-COD On-line Analyzer
AL4070 Ammonia Nitrogen On-line Analyzer
AL4140 Suspended Solids and Sludge Concentration On-line Sensor

AL2020 Low-Power Ultrasonic Water Level Gauge