Ultraviolet oxidation process and device for intermittent in-situ quick resolution of total phosphorus and total nitrogen

An oxidation method and intermittent technology, applied in the field of measurement, can solve the problems of manual analysis, retention, cumbersome operation, etc., and achieve the effects of easy temperature control, simple and reasonable structure, and high digestion efficiency

Inactive Publication Date: 2004-06-23
TIANJIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

In this innovative technical solution described by the inventor's patented system called Intervalence Digesters (IDG), an improved type of automatic analyzer was developed. These devices have several benefits such as being able to perform both regular and random sampling modes without relying solely upon gravity or centrifugal force, allowing them to effectively remove any remaining substances from their samples while maintaining consistently accurate measurements over long periods of time. Additionally, these systems use special materials like magnetostriction material instead of expensive metals, making them safer and easier to produce compared to traditional methods. Overall, IDG provides better performance and reliability during various applications involving monitoring specific pollutants levels in real world environments.

Problems solved by technology

This patents describes different technical means used during the course of managing and controlling the amount of nutrients (such as carbon) found in aquatic environments such as lakes, rivers, ponds, etc., particularly when considering how much fertilizers should be added based upon their effectiveness with crops grown throughout them. Current techniques involve analyzers manually but this limits its ability to continuously monitor large areas over longer periods without being subjected to significant damage from heat stressors.

Method used

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  • Ultraviolet oxidation process and device for intermittent in-situ quick resolution of total phosphorus and total nitrogen
  • Ultraviolet oxidation process and device for intermittent in-situ quick resolution of total phosphorus and total nitrogen
  • Ultraviolet oxidation process and device for intermittent in-situ quick resolution of total phosphorus and total nitrogen

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Such as figure 1 , figure 2 As shown: the intermittent online total phosphorus and total nitrogen digestion device is composed of a stainless steel digestion cup body 10, a top cover 5, an outer double heater 13, two special double ultraviolet low-pressure mercury lamps 1, a magnetic stirrer 19, and a stirring rod 18.

[0027] The stainless steel digestion device is composed of a cup body 10 and a top cover 5. The digestion cup body is provided with an overflow port 11, a water sample inlet 15, a water sample outlet 17, and a waste discharge port 29; the top cover is provided with a digestion agent inlet 21, The ultraviolet light source passes through the hole 22 and the temperature detector inlet 23; two dry heaters 13 are symmetrically arranged on the outside of the cup body, and the temperature detector passing through the hole 23 is a 18B20 digital temperature detector 2; the ultraviolet light source passing through the hole 22 is a double ultraviolet A low-pressu...

Embodiment 2

[0037] In the equipment of the above-mentioned Example 1, 40 kg of water and 8 kg of sodium persulfate were added as the digestion agent at a constant temperature and normal pressure of 15°C, and an ultraviolet light source was used to digest the components of the water sample, and the decomposition efficiency was 90%. above.

Embodiment 3

[0039]In the equipment of the above-mentioned Example 1, 40 kg of water and 17 kg of potassium persulfate were added as the digestion agent. Under the constant temperature and normal pressure of 70 ° C, the components of the water sample were digested by using an ultraviolet light source, and the decomposition efficiency was 97%. above.

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Abstract

The present invention is ultraviolet oxidation process and device for intermittent in-situ quick resolution of total phosphorus and total nitrogen. Into measured water sample, supersulfate in 1-30 % of solution weight as slaking agent is added, and ultraviolet light source and stirrer are turned on to slake components in water under constant temperature in 15-70 deg.c and normal pressure. The device for the technological process includes heater, stirrer, temperature detector, ultraviolet light source and slaking unit. The present invention can result in slaking rate of total phosphorus and total nitrogen up to 90 %, meeting the requirement for in-situ analysis.

Description

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Claims

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Application Information

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Owner TIANJIN UNIV
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