An experimental device for analyzing sediment suspension and its experimental method and application

Abstract

The invention relates to an experiment device for analyzing sediment and specifically discloses the experiment device for analyzing enzyme degradable degree of soluble organic phosphorus of a sediment suspension solution. The experiment device comprises a device main body, wherein the device main body comprises an outer sleeve and an inner sleeve; the outer sleeve comprises a chamber device; an inner glass grinding opening is formed in the middle part of the chamber device; the inner sleeve is arranged as a sand core device; an outer glass grinding opening is formed in the lower part of the sand core device; a sand core filter element and a filter membrane located on the upper part of the sand core filter element are embedded into the middle part of the sand core device; the sand core device is embedded into the chamber device and is fixedly connected with a convex structure through the inner glass grinding opening and the outer glass grinding opening. The invention also discloses an experiment method adopting the experiment device and an application thereof. The real-time analysis for the enzyme hydrolysis degree of soluble organic phosphorus released by the sediment suspension solution is realized in real time through the experiment device and the enzyme reagent added into supernate.

Description

technical field [0001] The invention relates to an experimental device for analyzing sediments, in particular to an experimental device for analyzing the degradability of soluble organophosphorus enzymes in sediment suspensions, an experimental method and application thereof. Background technique [0002] my country has a vast territory with many different types of lakes, which are rich in resources and have a long history of development. They play a very important role in ecological security and environmental security, as well as in the production and life of the whole people. However, eutrophication is one of the most important problems faced by lakes in our country. Phosphorus is a limiting nutrient in many lake ecosystems, and excessive phosphorus input is one of the important factors causing lake eutrophication. Phosphorus biogeochemical processes at the sediment-water interface, an important endogenous phosphorus source for cyanobacterial bloom outbreaks in eutrophic ...

AI Technical Summary

Problems solved by technology

[0005] Practice shows that traditional methods and experimental devices for analyzing the degradability of soluble organophosphorus enzymes in sediment suspensions are widely used in simulation studies, but there are many problems: 1. The suspension solution directly mixed with sediment and water , directly added to the enzyme solution, because the sediment particles have a strong adsorption capacity for the enzyme, the protease is easily adsorbed, resulting in a decrease in enzyme activity; Enzymatic hydrolysis effect, but the price of enzyme reagents is expensive; 3. The simulation and analysis of the enzymatic hydrolysis process of soluble organophosphorus in sediments is not good: such as directly extracting soluble organophosphorus and then analyzing it, it is difficult to simulate the long-term process of sediment organic phosphorus. Phosphorus dissolution and enzymatic degradation process; 4. The experimental method is simple, but there is a lack of effective experimental equipment, and the experimental process is difficult to control, etc.

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