APPLICATION OF EXCITATION EMISSION MATRIXES SPECTROSCOPY TO STUDY HUMIC ACIDS REJECTION WITH TiO2 NANOFILTRATION MEMBRANE WITH ENLARGED AREA
In recent years, membrane technology is increasingly being studied and thus became even more used in the production of drinking water. However, the presence of foulants in natural waters, as humic acids, affects strongly the efficiency of membrane processes. This study has been aimed to study humic...
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| Format: | Article |
| Language: | English |
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Alma Mater Publishing House "Vasile Alecsandri" University of Bacau
2018-09-01
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| Series: | Scientific Study & Research: Chemistry & Chemical Engineering, Biotechnology, Food Industry |
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| Online Access: | http://pubs.ub.ro/?pg=revues&rev=cscc6&num=201803&vol=3&aid=4774 |
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| author | MIHAELA-ELENA DASCĂLU JUAN ANTONIO LÓPEZ-RAMÍREZ VALENTIN NEDEFF EMILIAN MOSNEGUȚU DRAGOS RUSU |
| author_facet | MIHAELA-ELENA DASCĂLU JUAN ANTONIO LÓPEZ-RAMÍREZ VALENTIN NEDEFF EMILIAN MOSNEGUȚU DRAGOS RUSU |
| author_sort | MIHAELA-ELENA DASCĂLU |
| collection | DOAJ |
| description | In recent years, membrane technology is increasingly being studied and thus became even more used in the production of drinking water. However, the presence of foulants in natural waters, as humic acids, affects strongly the efficiency of membrane processes. This study has been aimed to study humic acid (HA) rejection using a new TiO2 ceramic nanofiltration membrane, with enlarged area (1.25 sqm). This membrane is a prototype and it has been chemically modified to increase its resistance to get fouled. The experiments were carried out on a pilot scale, in the laboratory within the Department of Environment ‧Technologies, from the University of Cádiz, Spain. For this, ultrapure water and different HA concentrations (10 mg‧L-1, 25 mg‧L-1, 50mg‧L-1, 75mg‧L-1, 100 mg‧L-1) were used. For the operating conditions, a constant temperature of 20 °C, pH 7.0, a constant pressure of 7 bars and a Cross Flow Velocity of 0.7 m‧s-1 were used. The analytical measurements focused on the use of excitation-emission fluorescence matrix to study membrane rejection of HA. The results of the conducted experiments show that this instrumental technique helps to control the rejection of HA in water and, at the same time, highlights the potential of the prototype membrane for controlling organic matter from the water. |
| first_indexed | 2024-04-13T22:09:56Z |
| format | Article |
| id | doaj.art-5814096a6a4248e4b4486edf6e60de52 |
| institution | Directory Open Access Journal |
| issn | 1582-540X 1582-540X |
| language | English |
| last_indexed | 2024-04-13T22:09:56Z |
| publishDate | 2018-09-01 |
| publisher | Alma Mater Publishing House "Vasile Alecsandri" University of Bacau |
| record_format | Article |
| series | Scientific Study & Research: Chemistry & Chemical Engineering, Biotechnology, Food Industry |
| spelling | doaj.art-5814096a6a4248e4b4486edf6e60de522022-12-22T02:27:48ZengAlma Mater Publishing House "Vasile Alecsandri" University of BacauScientific Study & Research: Chemistry & Chemical Engineering, Biotechnology, Food Industry1582-540X1582-540X2018-09-01193313321APPLICATION OF EXCITATION EMISSION MATRIXES SPECTROSCOPY TO STUDY HUMIC ACIDS REJECTION WITH TiO2 NANOFILTRATION MEMBRANE WITH ENLARGED AREAMIHAELA-ELENA DASCĂLU0JUAN ANTONIO LÓPEZ-RAMÍREZ1VALENTIN NEDEFF2 EMILIAN MOSNEGUȚU3 DRAGOS RUSU4“Vasile Alecsandri” University of Bacau, Department of Environmental Engineering, 157, Calea Marasesti, 600115, Bacau, RomaniaUniversidad de Cádiz, Departamento de Tecnologías del Medio Ambiente, CASEM - Polig. Río San Pedro s/n. 11510 Puerto Real, Cadiz, Spain“Vasile Alecsandri” University of Bacau, Department of Environmental Engineering, 157, Calea Marasesti, 600115, Bacau, Romania“Vasile Alecsandri” University of Bacau, Department of Environmental Engineering, 157, Calea Marasesti, 600115, Bacau, Romania“Vasile Alecsandri” University of Bacau, Department of Environmental Engineering, 157, Calea Marasesti, 600115, Bacau, RomaniaIn recent years, membrane technology is increasingly being studied and thus became even more used in the production of drinking water. However, the presence of foulants in natural waters, as humic acids, affects strongly the efficiency of membrane processes. This study has been aimed to study humic acid (HA) rejection using a new TiO2 ceramic nanofiltration membrane, with enlarged area (1.25 sqm). This membrane is a prototype and it has been chemically modified to increase its resistance to get fouled. The experiments were carried out on a pilot scale, in the laboratory within the Department of Environment ‧Technologies, from the University of Cádiz, Spain. For this, ultrapure water and different HA concentrations (10 mg‧L-1, 25 mg‧L-1, 50mg‧L-1, 75mg‧L-1, 100 mg‧L-1) were used. For the operating conditions, a constant temperature of 20 °C, pH 7.0, a constant pressure of 7 bars and a Cross Flow Velocity of 0.7 m‧s-1 were used. The analytical measurements focused on the use of excitation-emission fluorescence matrix to study membrane rejection of HA. The results of the conducted experiments show that this instrumental technique helps to control the rejection of HA in water and, at the same time, highlights the potential of the prototype membrane for controlling organic matter from the water.http://pubs.ub.ro/?pg=revues&rev=cscc6&num=201803&vol=3&aid=4774ceramic membraneexcitation emission matrices (EEM)fluorescencehumic acidsnanofiltration |
| spellingShingle | MIHAELA-ELENA DASCĂLU JUAN ANTONIO LÓPEZ-RAMÍREZ VALENTIN NEDEFF EMILIAN MOSNEGUȚU DRAGOS RUSU APPLICATION OF EXCITATION EMISSION MATRIXES SPECTROSCOPY TO STUDY HUMIC ACIDS REJECTION WITH TiO2 NANOFILTRATION MEMBRANE WITH ENLARGED AREA Scientific Study & Research: Chemistry & Chemical Engineering, Biotechnology, Food Industry ceramic membrane excitation emission matrices (EEM) fluorescence humic acids nanofiltration |
| title | APPLICATION OF EXCITATION EMISSION MATRIXES SPECTROSCOPY TO STUDY HUMIC ACIDS REJECTION WITH TiO2 NANOFILTRATION MEMBRANE WITH ENLARGED AREA |
| title_full | APPLICATION OF EXCITATION EMISSION MATRIXES SPECTROSCOPY TO STUDY HUMIC ACIDS REJECTION WITH TiO2 NANOFILTRATION MEMBRANE WITH ENLARGED AREA |
| title_fullStr | APPLICATION OF EXCITATION EMISSION MATRIXES SPECTROSCOPY TO STUDY HUMIC ACIDS REJECTION WITH TiO2 NANOFILTRATION MEMBRANE WITH ENLARGED AREA |
| title_full_unstemmed | APPLICATION OF EXCITATION EMISSION MATRIXES SPECTROSCOPY TO STUDY HUMIC ACIDS REJECTION WITH TiO2 NANOFILTRATION MEMBRANE WITH ENLARGED AREA |
| title_short | APPLICATION OF EXCITATION EMISSION MATRIXES SPECTROSCOPY TO STUDY HUMIC ACIDS REJECTION WITH TiO2 NANOFILTRATION MEMBRANE WITH ENLARGED AREA |
| title_sort | application of excitation emission matrixes spectroscopy to study humic acids rejection with tio2 nanofiltration membrane with enlarged area |
| topic | ceramic membrane excitation emission matrices (EEM) fluorescence humic acids nanofiltration |
| url | http://pubs.ub.ro/?pg=revues&rev=cscc6&num=201803&vol=3&aid=4774 |
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