Method for detecting rosin acid in papermaking wastewater

Abstract

The invention provides a method for detecting rosin acid in papermaking wastewater. The method comprises the steps of sampling, filtering, pH value adjusting, flocculent precipitation, dehydration and evaporation to dryness, purifying, preparing of a measuring solution, establishing of a standard curve, and result analysis. Through the flocculent precipitation, dehydration and evaporation to dryness, and purifying processes, most of impurities in the papermaking wastewater can be effectively removed, so that the purification and recovery efficiency of the rosin acid in the papermaking wastewater is improved. The method has the advantages that the detection precision is high, the operation is simple, the detection cost is low, and the wastewater can be monitored in real time. The method can effectively solve the technical problems that the purification and recovery efficiency is relatively low, the content of pollutants in the wastewater cannot be accurately measured, and the like.

Description

technical field [0001] The invention relates to a detection method for water treatment, in particular to a detection method for abietic acid in papermaking wastewater. Background technique [0002] In the industrial field of our country, due to the different content of wastewater pollutants produced by different industrial industries, the focus of treatment and detection of different industrial wastewater is also different; among various industrial wastewater, the wastewater pollutants produced by paper mills are complex and have always been It is the key point in the field of environmental protection monitoring. As an important indicator of papermaking pollutants, abietic acid in papermaking wastewater can reflect the chroma of water body and the toxicity of water body. When the content is high, it is easy to cause the precipitation and fouling of pollutants in the equipment , will cause equipment loss for a long time; but due to the high content of organic matter in paper ...

AI Technical Summary

Problems solved by technology

[0004] The invention provides a detection method of abietic acid in papermaking wastewater. By using flocculation precipitation, dehydration and evaporation, and purification procedures, the recovery rate of abietic acid dissolved in the detection solution can be improved. The purity of the detection solution with abietic acid effectively solves technical problems such as poor detection accuracy, low purification rate, high cost, and inability to monitor in real time

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