THE USE OF PIEZOELECTRIC SYSTEMS WITH MOLECULAR PRINTS FOR FORMALDEHYDE DETERMINATION IN WASTE WATER OF WOOD PROCESSING PLANTS-Reference-Cited by-同舟云学术

THE USE OF PIEZOELECTRIC SYSTEMS WITH MOLECULAR PRINTS FOR FORMALDEHYDE DETERMINATION IN WASTE WATER OF WOOD PROCESSING PLANTS

Published:2021-03-30 Issue:1 Volume:11 Page:78-87
ISSN:2222-7962
Container-title:Forestry Engineering Journal
language:en
Short-container-title:

Author:

Zyablov Aleksandr¹,Merenkova Anna²,Belchinskaya Larisa³,Zhuzhukin Konstantin³

Affiliation:

1. FGBOU VO «Voronezhskiy gosudarstvennyy universitet»

2. FGBOU VO «Voronezhskiy gosudarstvennyy universitet»

3. FGBOU VO «Voronezhskiy gosudarstvennyy lesotehnicheskiy universitet imeni G.F. Morozova»

Abstract

The development of methods for controlling formaldehyde content in wastewater, ensuring high accuracy, ease of use, rapidity and efficiency is an urgent problem of the woodworking industry. This article discusses a method for determining the content of formaldehyde and its concentrations in water using piezoelectric sensor systems with molecular imprinting polymers, which make it possible to form three-dimensional complementary voids for the templates of the molecules being detected during polymerization and their subsequent removal. Piezoelectric sensor with molecular imprints of formaldehyde molecules for the express determination of its concentration in solution has been obtained. A grading graph with a linear relationship has been built. The coefficient of determination (R2) was determined to be 0.9815. Unknown concentrations of formaldehyde in solutions were found by the "added-found" method. For sensory determination of unknown concentrations in solution, the standard deviation (Sr,%) is less than 7%. Thus, it has been established that piezoelectric sensors modified with molecularly imprinted polymers allow highly accurate determination of the concentration of unknown pollutants in wastewater of woodworking enterprises. They are economically beneficial, regenerated with further deposition of a polymer with other imprints on their surface

Publisher

Voronezh State University of Forestry and Technologies named after G.F. Morozov

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