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A method for rapid determination of total phosphorus in liquor industrial wastewater-bottom pot water

A technology for rapid determination of industrial wastewater, which is applied in the direction of material analysis by observing the influence of chemical indicators, and analysis by making materials undergo chemical reactions. Time and other issues, to achieve effective technical support, overcome long time consumption, and save resources

Active Publication Date: 2021-06-08
ANHUI RUISIWEIER TECH
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  • Description
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Problems solved by technology

Therefore, the determination of total phosphorus takes a long time, about 6 hours, and cannot provide timely and effective technical support for the adjustment of process production.

Method used

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  • A method for rapid determination of total phosphorus in liquor industrial wastewater-bottom pot water
  • A method for rapid determination of total phosphorus in liquor industrial wastewater-bottom pot water
  • A method for rapid determination of total phosphorus in liquor industrial wastewater-bottom pot water

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Embodiment Construction

[0033] 1 Determination of orthophosphate in bottom pot water

[0034] 1.1 Reagents and materials

[0035] 1.1.1 Sulfuric acid (H 2 SO 4 ), the density is 1.84g / mL.

[0036] 1.1.2 Ascorbic acid, 100g / L solution.

[0037] 1.1.3 Molybdate solution: Dissolve 13g of ammonium molybdate in 100mL of water. Dissolve 0.35g antimony potassium tartrate in 100mL water. Slowly add the ammonium molybdate solution to 300mL of sulfuric acid (mixture of concentrated sulfuric acid with a mass concentration of 98% and water at a volume ratio of 1:1) under constant stirring, then add antimony potassium tartrate solution and mix well.

[0038] 1.1.4 Phosphorus standard stock solution: Weigh 0.2197±0.001g of potassium dihydrogen phosphate (KH 2 PO 4 ), dissolved in water and transferred to a 1000mL volumetric flask, then added 5mL of sulfuric acid (mixture of concentrated sulfuric acid with a mass concentration of 98% and water at a ratio of 1:1 by volume) and diluted with water to the mark a...

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Abstract

The invention discloses a method for quickly determining the total phosphorus in liquor industrial waste water-bottom pot water. The bottom pot water sample is diluted by visual colorimetry, and then a reaction reagent is added to compare its color with the known total phosphorus concentration gradient. Compare with the color guide, so as to judge the concentration of the bottom pot water sample after dilution, and then multiply by the dilution factor to get the concentration of orthophosphate, and then infer the concentration of total phosphorus according to the concentration of orthophosphate. This method can quickly and quantitatively measure the total phosphorus concentration of liquor industrial wastewater-bottom pot water, improve work efficiency, provide timely and effective technical support for production process adjustment, ensure the discharge of total phosphorus concentration in external drainage, and benefit Save resources and protect the environment.

Description

technical field [0001] The invention relates to a method for rapidly determining the total phosphorus in liquor industrial wastewater-bottom pot water, belonging to the field of determination methods for total phosphorus in wastewater. Background technique [0002] In the 13th Five-Year Plan to Accelerate the Improvement of the Ecological Environment, it is required to increase comprehensive environmental management efforts, innovate environmental governance concepts and methods, implement the strictest environmental protection system, and achieve overall improvement in environmental quality. First of all, we will vigorously promote the discharge of pollutants up to standard and total emission reduction, and implement a comprehensive discharge plan for industrial pollution sources; secondly, we will strictly prevent and control environmental risks, and implement the whole process of environmental risk management. [0003] Phosphorus is one of the elements necessary for the g...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N21/78
Inventor 张良东张扬马培培马侠聂连芝康晓红汤有宏
Owner ANHUI RUISIWEIER TECH
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