groundwater refers to the water that exists in rock voids below the ground. In a narrow sense, it refers to the water in saturated aquifers below the water surface. It is an important part of water resources, due to the stable water quantity and good water quality, it is one of the important water sources for agricultural irrigation, industrial mining and urban. But with the continuous progress of society, the pollution of groundwater is becoming more and more common, this chapter water quality online monitoring instrument manufacturers to understand together with you about the way of groundwater pollution, as well as the problem of governance.

The Main Ways of Groundwater Pollution Are

· Domestic pollution: With the improvement of people’s living standards, more domestic garbage and waste water appear in front of us, and the waste water is directly discharged into the ground with the infiltration of surface water, causing underground water pollution;

· Industrial pollution, direct discharge of industrial production wastewater, harmful gases into the atmosphere and then into groundwater with rainfall, as well as engineering waste, radioactive substances buried underground will contact groundwater, resulting in groundwater pollution;

· Agricultural pollution, in order to pursue benefits, farmers will use a large number of pesticides and fertilizers to absorb substances into the ground, making the groundwater nitrogen, phosphorus and other elements exceed the standard. In addition, unreasonable recharge causes sewage to re-enter the groundwater, thus affecting the water quality;

· Saltwater pollution: In coastal areas, when a large amount of fresh water is extracted from aquifers, it may cause saltwater intrusion;

· Natural pollution: When human beings carry out various activities, a large number of elements in a stable state enter the groundwater, such as arsenic.

At present, water resources are facing a severe situation, the need to strengthen the protection of water resources, groundwater management and other work is necessary. Of course, groundwater management should be based on prevention and supplemented by management.

For the source of pollution, the relevant departments to increase control efforts, for the large amount of pollution enterprises to carry out comprehensive treatment, to ensure that enterprises in accordance with the standard discharge of wastewater, increase water quality monitoring! In addition, enhance people’s awareness of conservation and environmental protection, garbage classification, waste water is not discharged in a random way, guide farmers to rationally fertilize, water-saving irrigation, formulate reasonable policies, and provide effective legal support for environmental protection.

There is also the control of pollution routes, strengthen the detection of underground pipelines, rainy rain rainwater infiltration makes underground sewage pipes and underground oil pipelines, the surrounding harmful substances into the ground, pollution to groundwater, in addition to pipeline leakage also causes water pollution. For polluted areas, increase the investment of pollution funds, relevant departments do a good job of supervision, actively carry out groundwater environment investigation, pay attention to groundwater pollution online monitoring, and improve the monitoring system. For places where groundwater pollution is particularly serious, a series of purification methods should be implemented directly, and groundwater pollution prevention and treatment technologies should be introduced to increase protection efforts and do a good job in the prevention and remediation of groundwater pollution.