Open AccessApplication of catalytic destruction methods in wastewater treatment
Author(s) -
Svetlana Andreeva
Publication year - 2020
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/890/1/012133
Subject(s) - wastewater , peroxide , effluent , chemistry , catalysis , sewage treatment , human decontamination , pollutant , decomposition , reagent , hydrogen peroxide , pulp and paper industry , waste management , environmental chemistry , environmental science , organic chemistry , environmental engineering , engineering
The objective of the present work is to study the process of removing wastewater pollutants of peroxide nature chemical compounds by catalytic destruction method. To achieve this the following tasks were solved: a) to study qualitative and quantitative composition of wastewater, as well as composition stability over time; b) to study the possibility of applying methods of peroxide catalytic destruction in the wastewater medium; c) to determine optimal conditions for peroxide catalytic destruction; d) to determine the possibility of such wastewater purification at biological treatment plants. As a result of the research, it was established that wastewater has a variable quantitative composition of pollutants both at the moment of their formation and over time, which significantly complicates selection of reagents for peroxide catalytic destruction. Optimal conditions for catalytic decomposition of peroxides in the wastewater medium were determined. Thermal decomposition of peroxide compounds in the presence of iron-ion catalyst-Fe(II) was studied. The proposed methods of peroxide destruction allow achieving a high degree treatment of wastewater from these components, and to use biological methods of decontamination in further post-treatment of effluents.