Aeromonas immobilized on chitosan for treating high-oil wastewater from kitchens / 生物工程学报
Chinese Journal of Biotechnology
; (12): 615-624, 2021.
Article
in Zh
| WPRIM
| ID: wpr-878586
Responsible library:
WPRO
ABSTRACT
To effectively solve the serious impact of high oil in the kitchen wastewater on the downstream treatment process, an excellent oil-degrading strain Aeromonas allosaccarophila CY-01 was immobilized to prepare Chitosan-Aeromonas pellets (CH-CY01) by using chitosan as a carrier. Oil degradation condition and efficiency of CH-CY01 pellets were assessed. The growth of immobilized CH-CY01 was almost unaffected, and the maximum degradation rate of soybean oil was 89.7%. Especially at 0.5% NaCl concentration, oil degradation efficiency of CH-CY01 was increased by 20% compared with free cells. In the presence of a surfactant (sodium dodecylbenzene sulfonate) at 1 mg/L, the degradation efficiency of oil by CH-CY01 was increased by 40%. Moreover, using the high-oil catering wastewater as the substrate, more than 80% of the solid oil was degraded with 1% (V/V) CH-CY01 pellets treatment for 7 days, significantly higher than that of free cells. In summary, immobilized CH-CY01 significantly improved the efficiency of oil degradation.
Key words
Full text:
1
Index:
WPRIM
Main subject:
Surface-Active Agents
/
Aeromonas
/
Chitosan
/
Wastewater
Language:
Zh
Journal:
Chinese Journal of Biotechnology
Year:
2021
Type:
Article