Contribution of primary and secondary treatment on the removal of benzothiazoles, benzotriazoles, endocrine disruptors, pharmaceuticals and perfluorinated compounds in a sewage treatment plant

Sorption of Perfluorinated Compounds onto different types of sewage sludge and assessment of its importance during wastewater treatment

“…PFCs have been detected in several environmental samples, such as wastewater, surface water and groundwater at concentrations up to some hundreds ng L -1 [Müller et al, 2011, Arvaniti et al, 2012, Stasinakis et al, 2013, Eschauzier et al, 2013, as well as in sewage sludge, soil and sediment in the range of some pg g -1 to few ng g -1 [Arvaniti et al, 2012, Pico at al., 2012,Wang et al, 2013.…”

Treatment of Dairy Wastewater by Oxygen Injection: Occurrence and Removal Efficiency of a Benzotriazole Based Anticorrosive

“…More recently, it was highlighted that benzotriazoles, which are polar and poorly degradable pollutants, are insufficiently removed by biological treatment at conventional wastewater treatment plants as concluded from the reported BTA removals (29-58%) in wastewater treatment plants [20]. Even under higher removals (around 75% for BTA), it has been pointed out that large average daily loads are discharged via treated wastewater to the aquatic environment [21].…”

Reductive degradation of perfluorinated compounds in water using Mg-aminoclay coated nanoscale zero valent iron

“…It is possible that either PFOS intermediates are not stable in ZVI -H 2 O system or the ionization of the possible formed degradation products in the present aqueous solution is insufficient under negative electrospray ionization. It should be mentioned that in previous studies, where oxidation processes have been used for PFCs destruction, volatile unstable degradation products such as CHF 3 , CF 4 , were identified using GC-MS technique [10,12]. Such neutral polyfluorinated products aren't expected to be ionized and thus to be detectable by electrospray ionization.…”

“…Recently, the scientific interest has been grown over the PFCs, due to their widespread occurrence in the environment [2][3][4] as well as their environmental persistence, bioaccumulation potential and potential toxicity [2].…”