Method for determining content of sulfur in water

A determination method and technology of sulfur content, applied in environmental impact assessment and environmental protection, can solve the problem that determination is not very easy, does not involve sulfur, sulfur is difficult to do, etc., and achieves the effect of accurate and reliable determination results.

Inactive Publication Date: 2018-01-16
贵州金洋检测工程有限公司
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  • Summary
  • Abstract
  • Description
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Problems solved by technology

[0002] In the process of daily environmental monitoring, the detection methods of sulfur in water quality include thiosulfate, sulfide, sulfate, etc., but do not involve the detection of some other forms of sulfur, such as parapersulfate, sulfite and other sulfur It is not easy to determine the valence state of
When doing material balance, the balance of sulfur is difficult to do; in environmental protection issues, it is difficult to determine the specific amount of sulfur in water quality converted into gaseous state and solid state
Also have, existing measuring method to sulfur, can't accurately measure sulfate content 10mg / L (as SO 4 2- Water samples above

Method used

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Embodiment Construction

[0021] Specific embodiments of the present invention will be further described below. It should be noted here that the descriptions of these embodiments are used to help understand the present invention, but are not intended to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below may be combined with each other as long as they do not constitute a conflict with each other.

[0022] The method for measuring sulfur content in water quality of the present invention is based on the principle that in hydrochloric acid solution, sulfate reacts with added barium chloride to form barium sulfate precipitation. Precipitation takes place at near-boiling temperatures and after a period of aging it is filtered. Wash with water until there is no chloride ion, dry or burn the precipitate, and weigh the weight of barium sulfate.

[0023] The steps involved are as follows:

[0024] Step 1. Acidity adjust...

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Abstract

The invention discloses a method for determining the content of sulfur in water. The method comprises the following steps: 1, acidity adjustment; 2, raw material supplementation; 3, precipitation; 4,filtration; 5, drying; and 6, calculation of the content C of sulfate radicals (SO<4><2->). The method is suitable for ground water, underground water, salt-containing water, domestic sewage and industrial wastewater, and can accurately determine a water sample with the sulfate content being 10 mg/L (by (SO<4><2->) or more, and the determination result is accurate and reliable.

Description

technical field [0001] The invention relates to the fields of environmental assessment, environmental protection and water quality detection, in particular to a method for measuring sulfur content in water quality. Background technique [0002] In the process of daily environmental monitoring, the detection methods of sulfur in water quality include thiosulfate, sulfide, sulfate, etc., but do not involve the detection of some other forms of sulfur, such as parapersulfate, sulfite and other sulfur The determination of the valence state is not easy. When doing material balance, the balance of sulfur is difficult to do; in environmental protection issues, it is difficult to determine the specific amount of sulfur in water quality converted into gaseous state and solid state. Also have, existing measuring method to sulfur, can't accurately measure sulfate content 10mg / L (as SO 4 2- Count) above water samples. Contents of the invention [0003] The technical problem to be s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N5/04
Inventor 黄曦
Owner 贵州金洋检测工程有限公司
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