product name |
Soil testing, sludge testing, soil fertility testing |
Region oriented |
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brand |
HACH/Hash |
Soil detection - sludge detection - Henan Dingtai detection
Soil detection - sludge detection - Henan Dingtai detection
Soil refers to the loose surface layer with fertility and the ability to grow plants on the land surface, and its thickness is generally about 2m. Soil not only provides mechanical support for plant growth, but also provides water, fertilizer, gas, heat and other fertility factors required for plant growth and development. Due to the rapid growth of population and the rapid development of industry, solid waste is constantly stacked and dumped on the soil surface, harmful waste water is constantly seeping into the soil, and harmful gases and dust in the atmosphere are also constantly falling into the soil with rain, resulting in soil pollution.
Detection scope
In addition to the metal elements, radioactive elements and nutrients in the soil itself, there are also common pollution items
Soil pollution (foreign name: Control status) can be roughly divided into two categories: inorganic pollutants and organic pollutants. Inorganic pollutants mainly include acid, alkali, heavy metal, salt, radioactive element cesium, strontium compounds, arsenic, selenium, fluorine compounds, etc. Organic pollutants mainly include organic pesticides, phenols, petroleum, synthetic detergents, 3,4-benzopyrene and harmful microorganisms brought by urban sewage, sludge and manure.
① Chemical pollutants. It includes inorganic pollutants and organic pollutants. The former includes heavy metals such as mercury, cadmium, lead, arsenic, excessive nitrogen, phosphorus, plant nutrients, oxides and sulfides; The latter includes various chemical pesticides, petroleum and its pyrolysis products, as well as other kinds of organic synthetic products.
② Physical pollutants. It refers to solids and wastes from factories and mines, such as tailings, waste rocks, fly ash and industrial wastes.
③ Biological pollutants. It refers to urban garbage with various germs and waste water, wastes and manure discharged from sanitary facilities (including hospitals).
④ Radioactive contaminants. It mainly exists in areas where nuclear raw materials are mined and atmospheric nuclear explosions occur, and is dominated by radioactive elements such as strontium and cesium that have a long life in soil.
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