Lab scale Chromatography set up for moisture removal from solvent

FENTONS REAGENT

What is Fentons reagent

Fentons reagent mixture was discovered by H.J.H. Fenton in 1894.

Fenton's reagent is a solution of hydrogen peroxide and an iron catalyst; ferrous sulfate and an optimum pH (3-5) adjuster, using sulfuric acid.

If the pH is too high, the iron precipitates as Fe(OH)3 and catalytically decomposes the H2O2 to oxygen -- potentially creating a hazardous situation.

Application in water treatment sector

Fentons Reagent is useful in removing various constituents from wastewater from various industrial sectors including pharmaceuticals, textile etc which include the following

Chemical oxygen demand Pesticides Natural organic matter (NOM) Disinfectant Aromatic amines Surfactants

Application details in selected industrial sectorsTextile industry

Textile wastewater is difficult to treat with the use of classical physicochemical and biological methods, which is mainly due to their intensive colour, high content of surfactants and other organic and inorganic compounds, a significant toxicity and poor biological recovery. Fentons reagent is effective in decomposing the pollutants present in textile waste water

Process waste water

Fentons reagent was found to be most effective product in removing the pollutants from industrial waste water

MAA-Waste water from maleic acid anhydride2-EHAWaste water from 2-Ethyl hexyl alcoholUFRAWaste water from urea formaldehyde resin adhesivePCWPesticide containing waste water

Superiority of Fentons reagent compared to H2O2 and chlorine-bearing compounds

Fentons Reagent does not react with dimethylamine (DMA), which is often found in source water and is a precursor of N-Nitrosodimethyl amine (NDMA), a known carcinogen.

Other common oxidizing agents, including H2O2 and chlorine-bearing compounds, will react with DMA and produce NDMA. Thus, from a health perspective, Fentons Reagent would be a superior choice.

In Combined Sewer Overflows (CSO) treatment, Fentons reagent is used to disinfect water and to remove organic contaminants.2