Method for making oil content in water have comparability measured by fluorescent method and other methods

Abstract

A method ensuring the comparability of oil content in water tested by fluorescence and other method relates to industry waste water circumstance inspection technology. Use fluorescence testing method to scan grouping sampling, at the same time adopt other accustomed testing ways. Test the different concentration sample from low to high one by one to confirm the connection curve between the fluorescence value and oiliness concentration. Compared with the oiliness concentration curve, at the same condition, directly use fluorescence to test oiliness concentration of water sample without solvent extraction. By this method, the result of oil species content in water for using fluorescence with extraction or not, has comparability with the result getting form the weight method, infrared method, ultraviolet method, GC-MS and so on. The test with more economy, environmental protection, high effect and sensitive fluorescence can be used in more range to solve the important technology obstacle for testing oil species content in water on line.

Description

technical field [0001] The invention relates to an oil content detection technology in the oily industrial wastewater treatment process and a water body oil content detection method in environmental monitoring, in particular to a method for making the oil content in water measured by fluorescence method and other methods comparable. technical background [0002] In environmental pollution, petroleum pollutants mainly come from oily wastewater. When the oil content in the water body reaches 0.01mg / l, the fish meat will have a special smell and cannot be eaten. When there is a little more oil, an oil film is formed on the water surface, which isolates the atmosphere from the water surface, resulting in a lack of oxygen in the water body. When the oil film is attached to the gills of the fish, it makes it difficult for the fish to breathe, and even suffocates to death. Most of the fry hatched in the waters containing oily wastewater are deformed, have low vitality and are pron...

AI Technical Summary

Problems solved by technology

[0007] 1. The selection of standard oil samples is not appropriate;

[0008] 2. Failure to make the existence state and fluorescence characteristics of petroleum in water in the standard oil sample the same or similar to the existence state and fluorescence characteristics of petroleum in water caused by natural processes and industrial processes;

[0009] 3. There is no correction for the fluorescence of a part of petroleum in water due to incomplete extraction of organic solvents

Although it can measure the fluorescence of industrial liquid flow online, it still uses the method of quantitative weighing and dilution when converting the fluorescence into a chemically meaningful concentration, not to mention the oil content measured by the fluorescence method and the oil content measured by other methods Comparability of results