Chemical oxygen demand (cod) attenuation of methyl red in water using biocarbons obtained from Nipa palm leaves
Attenuation of methyl red dyestuff in water was assessed by COD reduction after contacting the solution with biocarbons produced by one-pot pyrolysis of sopping Nipa palm leaf biomass in H2O (physically-modified biocarbon: PMB), H3PO4 (acid-modified biocarbon: AMB) and KOH (base-modified biocarbon:...
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| Format: | Article |
| Language: | English |
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Joint Coordination Centre of the World Bank assisted National Agricultural Research Programme (NARP)
2017-02-01
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| Series: | Journal of Applied Sciences and Environmental Management |
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| Online Access: | https://www.ajol.info/index.php/jasem/article/view/150970 |
| _version_ | 1797227904604569600 |
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| author | Pereware Adowei A.A. Abia |
| author_facet | Pereware Adowei A.A. Abia |
| author_sort | Pereware Adowei |
| collection | DOAJ |
| description |
Attenuation of methyl red dyestuff in water was assessed by COD reduction after contacting the solution with biocarbons produced by one-pot pyrolysis of sopping Nipa palm leaf biomass in H2O (physically-modified biocarbon: PMB), H3PO4 (acid-modified biocarbon: AMB) and KOH (base-modified biocarbon: BMB). Physicochemical characterization of the biocarbons were investigated and the result for BMB were carbon yield (46.6 ± 0.21 %), porosity (79%), iodine number (814 mg/g), surface area (681 m2/g) and pH (6.41 ± 0.11 to 7.81 ± 0.12). Optimal COD reduction for methyl red in water by PMB, AMB, BMB compared with CAC were 82.7%, 76.7 %, 83.5 %, and 93.3 % respectively. Langmuir isotherm model was used to predict the maximum COD reduction capacity of the biocarbons and CAC (PMB: 2.15 mg/g, AMB: 8.73 mg/g, BMB: 11.83 mg/g and CAC: 62.60 mg/g). Thermodynamic assessment of the data based on Gibb’s free energy (ΔGo) revealed that ΔGo values were negative (- 1.31 to - 5.89 kJ/mol) and relatively low (<< -20 kJ/mol), which indicated spontaneous nature requiring minimal energy. One-way analysis of variance (ANOVA) performed to validate the COD degradation capacity for methyl red in water amongst the biocarbons revealed no significant difference (p > 0.05). Conclusively, Nipa palm could be a favorable source to derive eco-friendly and locally accessible biocarbon for mitigation of organic contaminants in water.
Keywords: Chemical oxygen demand, biocarbon, methyl red, biodegradation, bioremediation, Nipa palm
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| first_indexed | 2024-04-24T14:48:13Z |
| format | Article |
| id | doaj.art-716ce0a3971f4ee5a758ac3a252a76ac |
| institution | Directory Open Access Journal |
| issn | 2659-1502 2659-1499 |
| language | English |
| last_indexed | 2024-04-24T14:48:13Z |
| publishDate | 2017-02-01 |
| publisher | Joint Coordination Centre of the World Bank assisted National Agricultural Research Programme (NARP) |
| record_format | Article |
| series | Journal of Applied Sciences and Environmental Management |
| spelling | doaj.art-716ce0a3971f4ee5a758ac3a252a76ac2024-04-02T19:52:36ZengJoint Coordination Centre of the World Bank assisted National Agricultural Research Programme (NARP)Journal of Applied Sciences and Environmental Management2659-15022659-14992017-02-0120410.4314/jasem.v20i4.33Chemical oxygen demand (cod) attenuation of methyl red in water using biocarbons obtained from Nipa palm leavesPereware AdoweiA.A. Abia Attenuation of methyl red dyestuff in water was assessed by COD reduction after contacting the solution with biocarbons produced by one-pot pyrolysis of sopping Nipa palm leaf biomass in H2O (physically-modified biocarbon: PMB), H3PO4 (acid-modified biocarbon: AMB) and KOH (base-modified biocarbon: BMB). Physicochemical characterization of the biocarbons were investigated and the result for BMB were carbon yield (46.6 ± 0.21 %), porosity (79%), iodine number (814 mg/g), surface area (681 m2/g) and pH (6.41 ± 0.11 to 7.81 ± 0.12). Optimal COD reduction for methyl red in water by PMB, AMB, BMB compared with CAC were 82.7%, 76.7 %, 83.5 %, and 93.3 % respectively. Langmuir isotherm model was used to predict the maximum COD reduction capacity of the biocarbons and CAC (PMB: 2.15 mg/g, AMB: 8.73 mg/g, BMB: 11.83 mg/g and CAC: 62.60 mg/g). Thermodynamic assessment of the data based on Gibb’s free energy (ΔGo) revealed that ΔGo values were negative (- 1.31 to - 5.89 kJ/mol) and relatively low (<< -20 kJ/mol), which indicated spontaneous nature requiring minimal energy. One-way analysis of variance (ANOVA) performed to validate the COD degradation capacity for methyl red in water amongst the biocarbons revealed no significant difference (p > 0.05). Conclusively, Nipa palm could be a favorable source to derive eco-friendly and locally accessible biocarbon for mitigation of organic contaminants in water. Keywords: Chemical oxygen demand, biocarbon, methyl red, biodegradation, bioremediation, Nipa palm https://www.ajol.info/index.php/jasem/article/view/150970Chemical oxygen demandbiocarbonmethyl redbiodegradationbioremediationNipa palm |
| spellingShingle | Pereware Adowei A.A. Abia Chemical oxygen demand (cod) attenuation of methyl red in water using biocarbons obtained from Nipa palm leaves Journal of Applied Sciences and Environmental Management Chemical oxygen demand biocarbon methyl red biodegradation bioremediation Nipa palm |
| title | Chemical oxygen demand (cod) attenuation of methyl red in water using biocarbons obtained from Nipa palm leaves |
| title_full | Chemical oxygen demand (cod) attenuation of methyl red in water using biocarbons obtained from Nipa palm leaves |
| title_fullStr | Chemical oxygen demand (cod) attenuation of methyl red in water using biocarbons obtained from Nipa palm leaves |
| title_full_unstemmed | Chemical oxygen demand (cod) attenuation of methyl red in water using biocarbons obtained from Nipa palm leaves |
| title_short | Chemical oxygen demand (cod) attenuation of methyl red in water using biocarbons obtained from Nipa palm leaves |
| title_sort | chemical oxygen demand cod attenuation of methyl red in water using biocarbons obtained from nipa palm leaves |
| topic | Chemical oxygen demand biocarbon methyl red biodegradation bioremediation Nipa palm |
| url | https://www.ajol.info/index.php/jasem/article/view/150970 |
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