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182 0 _ab
200 1 _aApproaches for filtrate utilization from synthetic gypsum production
_fV. Romanovski, Xintai Su, Lijuan Zhang [et al.]
203 _aText
_celectronic
300 _aTitle screen
320 _a[References: 33 tit.]
330 _aWaste recycling and industrial wastewater treatment have always been of interest. A green approach was developed for the filtrate of synthetic gypsum production from water treatment coagulation sediments and spent sulfuric acid. Due to the high concentration of iron sulfate, concentrated filtrate showed good coagulation results, which were 5% lower than pure iron sulfate. In addition, a high concentration of iron facilitates its use as a precursor for synthesizing magnetic sorbents and photocatalysts. Such materials were synthesized by the solution combustion synthesis method. Oil sorption capacity reached 1.8 g/g, comparable to some synthetic materials and higher than sorption materials based on natural materials. Photodegradation of acid telon blue dye after 90 min of irradiation time was 82.7% with catalyst derived from filtrate compared to the just dye solution with 17.6% efficiency. The reaction rate constant for the photocatalyst sample was up to 11.4-fold higher compared with only UV treatment. The neutralized filtrate containing sulfur, calcium, magnesium, and sodium has been tested as a complex fertilizer. The results of bioindication for oil radish showed up to a 15% increase in the shoot length. A number of techno-economic indicators show that such an approach is advantageous from a technological, environmental, and economic point of view.
333 _aРежим доступа: по договору с организацией-держателем ресурса
461 _tEnvironmental Science and Pollution Research (ESPR)
463 _tVol. 30, iss. 12
_v[P. 33243–33252]
_d2023
610 1 _aэлектронный ресурс
610 1 _aтруды учёных ТПУ
610 1 _aspent sulfuric acid
610 1 _awater treatment sediment
610 1 _agypsum
610 1 _abinder
610 1 _acatalysts
610 1 _afertilizer
610 1 _acoagulation
610 1 _aoil sorption
610 1 _aphotocatalyst
610 1 _aсерная кислота
610 1 _aгипс
610 1 _aкатализаторы
610 1 _aудобрения
610 1 _aкоагуляция
610 1 _aфотокатализаторы
701 1 _aRomanovski
_bV.
_gValentin
701 0 _aXintai Su
701 0 _aLijuan Zhang
701 1 _aPaspelau
_bA.
_gAndrei
701 1 _aSmorokov
_bA. A.
_cchemical engineer
_cSenior Lecturer, Associate Scientist of Tomsk Polytechnic University
_f1993-
_gAndrey Arkadievich
_2stltpush
_3(RuTPU)RU\TPU\pers\33850
701 0 _aSehat
_bA. A.
_gAli Akbari
701 1 _aAkinwande
_bA. A.
_gAbayomi Adewale
701 1 _aKorob
_bN.
_gNatalia
701 1 _aKamarou
_bM.
_gMaksim
712 0 2 _aНациональный исследовательский Томский политехнический университет
_bИнженерная школа ядерных технологий
_bОтделение ядерно-топливного цикла
_h7864
_2stltpush
_3(RuTPU)RU\TPU\col\23554
801 2 _aRU
_b63413507
_c20230328
_gRCR
856 4 _uhttps://doi.org/10.1007/s11356-022-24584-3
942 _cCF