Sciact
  • EN
  • RU

Removal of inert COD and trace metals from stabilized landfill leachate by granular activated carbon (GAC) adsorption Научная публикация

Журнал Journal of Environmental Management
ISSN: 0301-4797 , E-ISSN: 1095-8630
Вых. Данные Год: 2018, Том: 228, Страницы: 189-196 Страниц : 8 DOI: 10.1016/j.jenvman.2018.09.020
Авторы Mohammad-pajooh Ehsan 1 , Turcios Ariel E. 2 , Cuff Graham 1 , Weichgrebe Dirk 1 , Rosenwinkel Karl-Heinz 1 , Vedenyapina M.D. 3 , Sharifullina L.R. 4
Организации
1 Institute for Sanitary Engineering and Waste Management, Leibniz University Hannover, Appelstr. 9a, D-30167 Hannover, Germany
2 Institute of Botany, Leibniz University Hannover, Herrenhäuserstr. 2, D-30419 Hannover, Germany
3 Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Leninskii Pr. 47, Moscow, 119991 Russia
4 Mendeleev University of Chemical Technology, Moscow, 125047 Russia

Реферат: Landfills in Germany are currently approaching stabilization phase; as a result removal of inert organics and potentially toxic elements in the leachate is becoming a primary concern. Dissolved air floatation (DAF) at the secondary stage reduces only 27% of the residual chemical oxygen demand (COD) in the investigated treatment systems; downstream granular activated carbon (GAC) units are required to further reduce COD concentration by 40–56% to meet indirect discharge or direct discharge limits respectively. Therefore, in this study performance in terms of COD and trace metals adsorption of different types of granular activated carbon were compared over different contact times and dosages. GAC 1 with Brunauer-Emmett-Teller (BET) surface area of 719.5 ± 2.1 m2/g and average pore diameter (D) of 4.81 nm was identified to be inappropriate for treatment of leachate from this landfill. GAC 2 (with BET of 1513.7 ± 6.4 m2/g and D of 3.50 nm) was feasible for COD reduction from DAF-pretreated leachate, while GAC 3 (with BET of 644.5 ± 2.6 m2/g and D of 5.65 nm) can be coupled either with biological step alone, or as a tertiary step after the DAF unit. Moreover, as COD is the primary remaining contaminant of interest after secondary and tertiary treatment, spectrometer probes provide a close estimation of COD concentration for use in online monitoring. Beside COD removal, GAC 3 also confirmed the effectiveness of trace metals adsorption even at trace level, as it removed 66, 64, 48, 47, 43, and 25% of copper, cobalt, chromium, manganese, nickel, and zinc, respectively.
Библиографическая ссылка: Mohammad-pajooh E. , Turcios A.E. , Cuff G. , Weichgrebe D. , Rosenwinkel K-H. , Vedenyapina M.D. , Sharifullina L.R.
Removal of inert COD and trace metals from stabilized landfill leachate by granular activated carbon (GAC) adsorption
Journal of Environmental Management. 2018. V.228. P.189-196. DOI: 10.1016/j.jenvman.2018.09.020 WOS Scopus OpenAlex
Идентификаторы БД:
Web of science: WOS:000448224900020
Scopus: 2-s2.0-85053180501
OpenAlex: W2889820747
Цитирование в БД:
БД Цитирований
OpenAlex 69
Scopus 69
Web of science 60
Альметрики: