Degradation of nitrobenzene by Fenton-like reaction in a H2O2/schwertmannite system

Degradation of phthalate esters and acetaminophen in river sediments using the electrokinetic process integrated with a novel Fenton-like process catalyzed by nanoscale schwertmannite

“…As indicated above, SHM has been used as a new catalyst in Fenton-like process for the oxidation of phenol (Wang et al, 2013) and nitrobenzene (Duan et al, 2016) in batch experiments using some types of continuous stirred tank reactor (CSTR). To date, no study on coupling SHM/H 2 O 2 oxidation with a column reactor for degradation of any organic compounds has been reported.…”

“…It was found that 98% phenol removal could still be obtained even after SHM was successively used for 12 cycles. Very recently, Duan et al (2016) reported using SHM as a heterogeneous Fenton-like catalyst for the degradation of nitrobenzene (NB) in a closed batch system. The test results showed that the NB removal was significantly increased in the presence of SHM and the catalyst retained its high catalytic activity even after 5 consecutive runs.…”

A novel approach coupling ferrous iron bio-oxidation and ferric iron chemo-reduction to promote biomineralization in simulated acidic mine drainage

“…15,16 In AMD treatment, the advantages of mineralization before neutralization are as follows: (1) decrease in lime dosage for neutralization; (2) simultaneous decrease in iron and sulfate load of AMD by precipitation; (3) hydrolysis-induced generation of minerals that are prospective resources for water treatment (as adsorbent, catalyst, etc.). 17,18 8Fe…”

“…Some recent studies reported that biogenic schwertmannite would be of great promise for wastewater treatments due to its capability in adsorbing heavy metals/metalloids and catalysing advanced oxidation. 18,[41][42][43][44][45][46][47] For instance, As(III) in simulated groundwater can be effectively removed by schwertmannite biosynthesized using A ferrooxidans, with a maximum adsorption capacity of 113.9 mg As(III) g À1 in the optimal pH range of 7-10; 32 Fenton-like reaction catalysed by biosynthetic schwertmannite could completely degrade phenanthrene (1 mg L À1 ) within only 3 h; 48 and biogenic schwertmannite exhibited a much higher catalytic capacity than biogenic jarosite for the degradation of phenol in heterogeneous Fenton-like reactions, because of its shorter induction period and higher kinetic rate (k) of the second-stage. 49 Therefore, the production of schwertmannite during the precipitation of soluble iron and sulfate in A. ferrooxidans biomineralization system is advantageous over the production of other types of minerals.…”

Efficiency Optimization of Pharmaceutical Wastewater Treatment by a Microwave-Assisted Fenton-Like Process Using Special Supported Catalysts

“…The special supported catalysts with the highest performance effi ciency were produced at a calcination temperature of 400ºC. The catalyst preparations were characterized by SEM, EDX, and XRD [29][30].…”