Conversion of biomass from an invasive species into activated carbons for removal of nitrate from wastewater
Development of activated carbons targeted at nitrate ion removal is investigated by chemical activation of sawdust from the invasive species Parkinsonia aculeata wood. Phosphoric acid and potassium hydroxide are comparatively used as activating agent. Its effect on main physico-chemical properties a...
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2012
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| Acceso en línea: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_09619534_v44_n_p87_Nunell http://hdl.handle.net/20.500.12110/paper_09619534_v44_n_p87_Nunell |
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paper:paper_09619534_v44_n_p87_Nunell2023-06-08T15:57:59Z Conversion of biomass from an invasive species into activated carbons for removal of nitrate from wastewater Nunell, Gisel Vanesa Fernández, María Emilia Bonelli, Pablo R. Cukierman, Ana Lea Activated carbon Chemical activation Nitrate pollution Parkinsonia aculeata wood Urea post-treated carbons Activating agents After-treatment Commercial sample Invasive species Langmuir models Nitrate ions Nitrate pollution Nitrate removal Nitrate uptake Parkinsonia aculeata Physicochemical property Porous structures Urea solutions Activated carbon Activated carbon treatment Chemical activation Chemical properties Metabolism Nitrates Phosphoric acid Potassium hydroxide Urea Nitrogen removal activated carbon anion biomass hydroxide inorganic acid invasive species isotherm legume nitrate nitrogen physicochemical property pollutant removal porous medium potassium urea wastewater wood Development of activated carbons targeted at nitrate ion removal is investigated by chemical activation of sawdust from the invasive species Parkinsonia aculeata wood. Phosphoric acid and potassium hydroxide are comparatively used as activating agent. Its effect on main physico-chemical properties and on the effectiveness of the activated carbons in nitrate removal is compared with those determined for a commercial sample. Activated carbons developed with the base show the best effectiveness in nitrate removal, as determined from application of the Langmuir model to the experimental isotherms. The behavior is consistent with the development of surface basic groups and the more basic character of these carbons. Noticeable improvement in nitrate uptake for all the carbons is attained after treatment with a saturated urea solution, with removal levels of ∼80-90%, despite reductions in porous structures. Nitrate adsorption onto the urea-treated carbons is in direct correlation with their enhanced contents of elemental nitrogen. © 2012 Elsevier Ltd. Fil:Nunell, G.V. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Fernández, M.E. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Bonelli, P.R. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Cukierman, A.L. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 2012 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_09619534_v44_n_p87_Nunell http://hdl.handle.net/20.500.12110/paper_09619534_v44_n_p87_Nunell |
| institution |
Universidad de Buenos Aires |
| institution_str |
I-28 |
| repository_str |
R-134 |
| collection |
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
| topic |
Activated carbon Chemical activation Nitrate pollution Parkinsonia aculeata wood Urea post-treated carbons Activating agents After-treatment Commercial sample Invasive species Langmuir models Nitrate ions Nitrate pollution Nitrate removal Nitrate uptake Parkinsonia aculeata Physicochemical property Porous structures Urea solutions Activated carbon Activated carbon treatment Chemical activation Chemical properties Metabolism Nitrates Phosphoric acid Potassium hydroxide Urea Nitrogen removal activated carbon anion biomass hydroxide inorganic acid invasive species isotherm legume nitrate nitrogen physicochemical property pollutant removal porous medium potassium urea wastewater wood |
| spellingShingle |
Activated carbon Chemical activation Nitrate pollution Parkinsonia aculeata wood Urea post-treated carbons Activating agents After-treatment Commercial sample Invasive species Langmuir models Nitrate ions Nitrate pollution Nitrate removal Nitrate uptake Parkinsonia aculeata Physicochemical property Porous structures Urea solutions Activated carbon Activated carbon treatment Chemical activation Chemical properties Metabolism Nitrates Phosphoric acid Potassium hydroxide Urea Nitrogen removal activated carbon anion biomass hydroxide inorganic acid invasive species isotherm legume nitrate nitrogen physicochemical property pollutant removal porous medium potassium urea wastewater wood Nunell, Gisel Vanesa Fernández, María Emilia Bonelli, Pablo R. Cukierman, Ana Lea Conversion of biomass from an invasive species into activated carbons for removal of nitrate from wastewater |
| topic_facet |
Activated carbon Chemical activation Nitrate pollution Parkinsonia aculeata wood Urea post-treated carbons Activating agents After-treatment Commercial sample Invasive species Langmuir models Nitrate ions Nitrate pollution Nitrate removal Nitrate uptake Parkinsonia aculeata Physicochemical property Porous structures Urea solutions Activated carbon Activated carbon treatment Chemical activation Chemical properties Metabolism Nitrates Phosphoric acid Potassium hydroxide Urea Nitrogen removal activated carbon anion biomass hydroxide inorganic acid invasive species isotherm legume nitrate nitrogen physicochemical property pollutant removal porous medium potassium urea wastewater wood |
| description |
Development of activated carbons targeted at nitrate ion removal is investigated by chemical activation of sawdust from the invasive species Parkinsonia aculeata wood. Phosphoric acid and potassium hydroxide are comparatively used as activating agent. Its effect on main physico-chemical properties and on the effectiveness of the activated carbons in nitrate removal is compared with those determined for a commercial sample. Activated carbons developed with the base show the best effectiveness in nitrate removal, as determined from application of the Langmuir model to the experimental isotherms. The behavior is consistent with the development of surface basic groups and the more basic character of these carbons. Noticeable improvement in nitrate uptake for all the carbons is attained after treatment with a saturated urea solution, with removal levels of ∼80-90%, despite reductions in porous structures. Nitrate adsorption onto the urea-treated carbons is in direct correlation with their enhanced contents of elemental nitrogen. © 2012 Elsevier Ltd. |
| author |
Nunell, Gisel Vanesa Fernández, María Emilia Bonelli, Pablo R. Cukierman, Ana Lea |
| author_facet |
Nunell, Gisel Vanesa Fernández, María Emilia Bonelli, Pablo R. Cukierman, Ana Lea |
| author_sort |
Nunell, Gisel Vanesa |
| title |
Conversion of biomass from an invasive species into activated carbons for removal of nitrate from wastewater |
| title_short |
Conversion of biomass from an invasive species into activated carbons for removal of nitrate from wastewater |
| title_full |
Conversion of biomass from an invasive species into activated carbons for removal of nitrate from wastewater |
| title_fullStr |
Conversion of biomass from an invasive species into activated carbons for removal of nitrate from wastewater |
| title_full_unstemmed |
Conversion of biomass from an invasive species into activated carbons for removal of nitrate from wastewater |
| title_sort |
conversion of biomass from an invasive species into activated carbons for removal of nitrate from wastewater |
| publishDate |
2012 |
| url |
https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_09619534_v44_n_p87_Nunell http://hdl.handle.net/20.500.12110/paper_09619534_v44_n_p87_Nunell |
| work_keys_str_mv |
AT nunellgiselvanesa conversionofbiomassfromaninvasivespeciesintoactivatedcarbonsforremovalofnitratefromwastewater AT fernandezmariaemilia conversionofbiomassfromaninvasivespeciesintoactivatedcarbonsforremovalofnitratefromwastewater AT bonellipablor conversionofbiomassfromaninvasivespeciesintoactivatedcarbonsforremovalofnitratefromwastewater AT cukiermananalea conversionofbiomassfromaninvasivespeciesintoactivatedcarbonsforremovalofnitratefromwastewater |
| _version_ |
1768541946670743552 |