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1

Removing phenols from post-processing wastewater originating from underground coal gasification using coagulation-flocculation and the H2O2/UV process

100%
Thomas M., Zdebik D., Niewiara E.
Polish Journal of Environmental Studies
|
2018
|
tom 27
|
nr 6
Our paper presents the possibility of phenol removal from post-processing wastewater originating from an experimental simulation of the underground coal gasification process carried out in the Barbara Experimental Mine in Mikołów, Poland. The application of initial coagulation-flocculation processes with iron(II), iron(III), aluminium, titanium(IV), and zirconium(IV) and anionic flocculant has allowed phenols removal from 7.9% (pH 8, Zr⁴⁺ 400 mg/L) to 22.2% (for pH 8, Fe²⁺ 800 and 1,000 mg/L and for pH 8, Fe³⁺ 1,000 mg/L). The application of the coagulation-flocculation process and advanced oxidation in the H₂O₂/UV system resulted in a total reduction of phenolic concentrations in the treated wastewater by about 93% due to their reaction with OH• radicals, resulting from the UV rays impact on H₂O₂.
2

Using sodium trithiocarbonate to precipitate heavy metals from industrial wastewater – from the laboratory to industrial scale

100%
Thomas M., Zdebik D., Bialecka B.
Polish Journal of Environmental Studies
|
2018
|
tom 27
|
nr 4
This paper presents the possibility of using sodium trithiocarbonate to remove heavy metals such as copper, nickel, and tin from industrial wastewater generated by the production of printed circuit boards (PCBs). Initial metal removal studies aimed at selecting an effective precipitant and optimizing the precipitation process were conducted on an laboratory scale. The smallest concentrations of copper, nickel, and tin in treated wastewater (Cu 0.09 mg/L, Ni 0.009 mg/L, Sn <0.005 mg/L) were obtained after using a stoichiometric sodium trithiocarbonate dose at pH 9.0-9.5. Optimizing the metal removal process was possible by using the surface response method to obtain a good adjustment of the experimental data to the data obtained from the model (R² = 0.9307, R² adj. = 0.8845). The results of laboratory and model studies were used during industrial-scale testing in a wastewater treatment plant located in a PCB manufacturing plant. Optimization the wastewater treatment process on an industrial scale allowed us to obtain treated wastewater with very low copper (<0.005-0.014 mg/L), nickel (<0.005-0.008 mg/L), and tin (<0.005 mg/L) concentrations.
3

Identification and validation of drought-responsive microRNAs from Hevea brasiliensis

100%
Kuruvilla L., Sathik M., Luke L. P., Thomas M.
Acta Physiologiae Plantarum
|
2019
|
tom 41
|
nr 01
4

Cryptosporidium parvum-infected neonatal mice show gut microbiota remodelling using high-throughput sequencing analysis: preliminary results

64%
Mammeri M., Chevillot A., Thomas M., Julien C., Auclair E., Pollet T., Polack B., Vallee I., Adjou K. T.
Acta Parasitologica
|
2019
|
tom 64
|
nr 2
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