Adsorption Characteristics of Cu on to Industrial Wastewater Sludges
Primary, activated and aerobically digested sludges from an industrial wastewater treatment plant were collected to investigate their adsorption characteristics towards Cu II through the use of batch experiments. Results show that the Cu II adsorption rate was fast and could be described by a modifi...
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| Format: | Article |
| Language: | English |
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SAGE Publishing
2001-03-01
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| Series: | Adsorption Science & Technology |
| Online Access: | https://doi.org/10.1260/0263617011494042 |
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| _version_ | 1832544606557831168 |
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| author | Chih-Huang Weng Pen-Chi Chiang E.E. Chang |
| author_facet | Chih-Huang Weng Pen-Chi Chiang E.E. Chang |
| author_sort | Chih-Huang Weng |
| collection | DOAJ |
| description | Primary, activated and aerobically digested sludges from an industrial wastewater treatment plant were collected to investigate their adsorption characteristics towards Cu II through the use of batch experiments. Results show that the Cu II adsorption rate was fast and could be described by a modified Freundlich equation. The rate of adsorption decreased with increasing surface loading. It was observed that the pH value of the solution was the key factor affecting the adsorption characteristics. The Langmuir adsorption model described the equilibrium adsorption well. The sludge adsorption capacities of Cu II were in the range 17–59 mg/g and were affected by the ionic strength. Values of ΔG 0 ranging from −7.24 to −7.65 kcal/mol suggested that the adsorption is a physical process which is simultaneously enhanced by the electrostatic effect. The binding strength for Cu II adsorption was proposed as: digested sludge > secondary sludge > primary sludge. |
| format | Article |
| id | doaj-art-3806517bfa2443ecbc7554924879b5e7 |
| institution | Kabale University |
| issn | 0263-6174 2048-4038 |
| language | English |
| publishDate | 2001-03-01 |
| publisher | SAGE Publishing |
| record_format | Article |
| series | Adsorption Science & Technology |
| spelling | doaj-art-3806517bfa2443ecbc7554924879b5e72025-02-03T10:07:59ZengSAGE PublishingAdsorption Science & Technology0263-61742048-40382001-03-011910.1260/0263617011494042Adsorption Characteristics of Cu on to Industrial Wastewater SludgesChih-Huang Weng0Pen-Chi Chiang1E.E. Chang2 Department of Civil Engineering, I-Shou University, Kaohsiung 840, Taiwan Graduate Institute of Environmental Engineering, National Taiwan University, Taipei, 106 Taiwan Department of Biochemistry, Taipei Medical College, Taipei, 110 TaiwanPrimary, activated and aerobically digested sludges from an industrial wastewater treatment plant were collected to investigate their adsorption characteristics towards Cu II through the use of batch experiments. Results show that the Cu II adsorption rate was fast and could be described by a modified Freundlich equation. The rate of adsorption decreased with increasing surface loading. It was observed that the pH value of the solution was the key factor affecting the adsorption characteristics. The Langmuir adsorption model described the equilibrium adsorption well. The sludge adsorption capacities of Cu II were in the range 17–59 mg/g and were affected by the ionic strength. Values of ΔG 0 ranging from −7.24 to −7.65 kcal/mol suggested that the adsorption is a physical process which is simultaneously enhanced by the electrostatic effect. The binding strength for Cu II adsorption was proposed as: digested sludge > secondary sludge > primary sludge.https://doi.org/10.1260/0263617011494042 |
| spellingShingle | Chih-Huang Weng Pen-Chi Chiang E.E. Chang Adsorption Characteristics of Cu on to Industrial Wastewater Sludges Adsorption Science & Technology |
| title | Adsorption Characteristics of Cu on to Industrial Wastewater Sludges |
| title_full | Adsorption Characteristics of Cu on to Industrial Wastewater Sludges |
| title_fullStr | Adsorption Characteristics of Cu on to Industrial Wastewater Sludges |
| title_full_unstemmed | Adsorption Characteristics of Cu on to Industrial Wastewater Sludges |
| title_short | Adsorption Characteristics of Cu on to Industrial Wastewater Sludges |
| title_sort | adsorption characteristics of cu on to industrial wastewater sludges |
| url | https://doi.org/10.1260/0263617011494042 |
| work_keys_str_mv | AT chihhuangweng adsorptioncharacteristicsofcuontoindustrialwastewatersludges AT penchichiang adsorptioncharacteristicsofcuontoindustrialwastewatersludges AT eechang adsorptioncharacteristicsofcuontoindustrialwastewatersludges |