English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Plus monthly

Global: Zendy Tools annual

Global: Zendy Tools monthly

Global: Zendy Free Plan

We studied the exothermic laws of Fe 3+ /H 2 O 2 homogeneous quasi-Fenton degradation of o -phenylenediamine in waste water, and analyzed the effects of [H 2 O 2 ] and [Fe 3+ ], initial reaction temperature, and other factors on the solution temperature elevation (Δ t ), temperature elevation duration ( T ), and chemical oxygen demand degradation rate ( η ) during the degradation of the target pollutant. Our study found that [H 2 O 2 ] is a major factor affecting Δ t , while [Fe 3+ ] and t  0 are the main factors influencing the exothermic reaction rate. For the conditions wherein [H 2 O 2 ] is 0.2 mol L -1 , [Fe 3+ ] is 10 mmol L -1 , pH = 7.8, initial reaction temperature is 30 °C, and reaction duration is 30 min, Δ t of 200 mL of 0.04 mol L -1  o -phenylenediamine is 7.2 °C and η is 93.45%. The exothermic reaction between the free radicals (·OH and ) and o -phenylenediamine and the exothermic reaction due to auto-consumption of free radicals are the main reasons for the increased temperature of the solution.

rsc advances

Exothermic laws applicable to the degradation of o-phenylenediamine in wastewater via a Fe3+/H2O2 homogeneous quasi-Fenton system