Device for detecting total phosphorus in water and using method thereof

Abstract

The invention discloses a device for detecting total phosphorus in water quality, the device comprises a base, four corners of the bottom of the base are fixedly connected with supporting legs, the outer side of the base is fixedly provided with a controller, and the base is internally provided with a transmission groove. The device is compact in structure, simple and convenient to operate and high in practicability. By arranging the weighing mechanism to be matched with the quantitative filling mechanism, a quantitative sodium thiosulfate anti-interference agent can be quickly added into a quantitative water quality sample, so that the interference of arsenic, chromium and sulfides contained in the vanadium extraction wastewater and the coking wastewater on the color development process of total phosphorus can be eliminated to the greatest extent, and the detection accuracy is further improved; and meanwhile, a certain amount of potassium sulfate solution can be injected after the sodium thiosulfate anti-interference agent is injected, so that the water sample is digested, the total phosphorus in the water is better detected, in addition, the whole operation is completed at a time and can be rapidly completed, and the detection accuracy and the detection efficiency are greatly improved.

Description

technical field [0001] The invention belongs to the field of total phosphorus detection, and specifically relates to a total phosphorus detection device in water quality and a use method thereof. Background technique [0002] In existing life, phosphorus in water quality can exist in the form of elemental phosphorus, orthophosphate, condensed phosphate, pyrophosphate, metaphosphate and phosphate combined with organic groups, and its main sources are domestic sewage, chemical fertilizers, organic Phosphorus pesticides and phosphate builders used in modern detergents, etc. Phosphate will interfere with the coagulation process in water plants. Phosphorus in water is a key element needed for algae growth. Excessive phosphorus will cause water pollution and odor. The main reason for the eutrophication of lakes, especially in the waste water from the vanadium extraction plant and the coking plant, is that the total phosphorus content is high and the pollution is large, which will ...

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Problems solved by technology

[0003] However, most of the detection devices for total phosphorus in water quality in the prior art are complex in structure, and cannot eliminate the arsenic, chromium and sulfide contained in the vanadium extraction wastewater and coking wastewater, which interfere with the color development process of total phosphorus, thereby greatly reducing In addition, the existing total phosphorus detection device in water quality needs multi-step operation to complete the corresponding detection operation, which greatly increases the operation time, thereby reducing the detection efficiency, which is not conducive to actual use

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