Sewage is waste water that is polluted and comes from living and production. Sewage includes domestic sewage, industrial wastewater, and initial rainwater. Sewage is mainly polluted by pathogenic pollutants, oxygen-consuming pollutants, plant nutrients and toxic pollutants. The sewage detection standard is: comprehensive sewage discharge standard GB8978-1996.
Groundwater quality inspection
Groundwater is water stored in stratum voids below the aerated zone, such as water in rock pores, fissures, and karst caves. Groundwater is an important part of water resources. Because of the stable water quantity and good water quality, it is one of the important water sources for agricultural irrigation, industry and mining, and cities. However, under certain conditions, changes in groundwater can also cause unfavorable natural phenomena such as swampification, salinization, landslides, and ground subsidence. The groundwater quality testing standards are: Groundwater Quality Standard GB / T14848-93
Surface water quality inspection
Surface water is water that is located on the surface of the earth's crust and exposed to the atmosphere, including rivers, glaciers, lakes, and swamps. Surface water is the main source of water for human life and the main component of water resources in various countries. Surface water quality testing standards are: Surface Water Environmental Quality Standard (GB 3838-2002).
Fishery water quality inspection
Fishery water quality inspection standards are: Fishery Water Quality Standard (GB11607-1989).
Farm irrigation water quality inspection
According to the use of irrigation water, the water quality requirements of agricultural irrigation water can be divided into:
I. Irrigation area with industrial wastewater or urban sewage as the main source of agricultural water and long-term use.
2. Industrial wastewater or urban sewage is used as a supplementary source of agricultural water, and irrigation districts that carry out clean-up, mixed-irrigation and sub-irrigation. The amount used should not exceed half of the first type. Farmland irrigation water quality test standard: GB5084-2005.
Test water test
The basis of the test water test standard is: GB / T 6682-2008.
Sea water quality inspection
Seawater is a liquid mineral deposit and contains approximately 35.7 million tons of minerals per cubic kilometer of seawater. Seawater is considered a source of freshwater on land and a climate regulator. Today, desalination is slowly forming an industry. Due to the continuous deterioration of the ecological environment, the possible solution to the water shortage is desalination. The sea water quality test standard is: GB 17378-1998.