Process parametric study for COD removal of electroplating industry effluent
| Autor: | Dharmesh H. Sur, Mausumi Mukhopadhyay |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
Materials science
Gas velocity biology 0211 other engineering and technologies Analytical chemistry 02 engineering and technology Environmental Science (miscellaneous) biology.organism_classification Agricultural and Biological Sciences (miscellaneous) Pseudomonas putida 020401 chemical engineering Volume (thermodynamics) Scientific method Batch processing Original Article 021108 energy 0204 chemical engineering Electroplating Effluent Biotechnology Parametric statistics |
| Zdroj: | 3 Biotech. 8 |
| ISSN: | 2190-5738 2190-572X |
| DOI: | 10.1007/s13205-017-1059-0 |
| Popis: | This paper investigated the effects of parameters, like inoculum size (15, 10 and 5% of the working volume of the reactor), gas velocities (0.0027, 0.00342 and 0.0068 m/s), bed heights (0.3, 0.6 and 0.9 m), static bed heights (4.85 and 2.43 cm), sizes of solid media particles (12, 4 mm), and the height to diameter ratio (H/D: 0.25 and 0.5) onto COD reduction process for electroplating effluent (initial COD values: 1140 ppm) using Pseudomonas aeruginosa and Pseudomonas putida. The authors derived simple mathematical correlations representing the entire COD reduction process. The correlation between the inoculum volume and gas velocities was in the form of an equation Y = ax2 + bx + c, as deduced from nonlinear regressions. The correlations were validated, and percentage errors were found out to infer the effects of all parameters in the COD reduction process. The maximum COD reduction was achieved to 28.30 ppm (97.52%), in a batch mode, at 10% inoculum size, 0.0027 m/s low gas velocity and a static bed height of 2.43 cm. |
| Databáze: | OpenAIRE |
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