| Autor: |
Songrit Baidugem, Prawit Kongjan, Khaliyah Sani, Marisa Raketh, Samitanun Saraluck, Saowapa Chotisuwan, Rattana Jariyaboon |
| Předmět: |
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| Zdroj: |
Desalination & Water Treatment; Nov2023, Vol. 311, p175-187, 13p |
| Abstrakt: |
This research aimed at treating condensate wastewater from the by-product of production processes in the canned tuna factories for recycling into fish oil production by reducing pH and deodorization using activated carbon, Eunicarb ID 900. The research began with batch adsorption to study the effect of pH 7-9 on the chemical oxygen demand (COD) removal (parameters representing odor) followed by continuous adsorption at the production plant using 15 cm diameter and 150 cm height adsorber. The result showed that a faster initial adsorption rate was achieved at lower pH while higher equilibrium COD removal was obtained at higher pH with the highest 90% COD removal. The adsorption was fitted well with Pseudo-second-order kinetic and Freundlich's isotherm. It was found that this treatment could not only removed the odor but also produced higher water quality which meets the limitation of water for fish oil extraction manufacturing. Subsequently this research suggested a six-month operation cycle based on the result operated at an actual condensate production rate of 2.5 m3/h. No effect in both quantitative and qualitative quality of fish oil was observed after processing with the treated condensate. The economic assessment for the existing plant evaluates a payback period of 2.86 y, reveals it is readiness to be adopted for the factory. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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