Performance evaluation of Malathion biodegradation in batch and continuous packed bed bioreactor (PBBR).
Bioresour Technol
; 227: 56-65, 2017 Mar.
Article
em En
| MEDLINE
| ID: mdl-28013137
ABSTRACT
The aim of this work was to study the biodegradation of Malathion in batch and continuous packed bed (Polyurethane foam; PUF) bioreactor (PBBR). After 10days, 89% Malathion removal was observed in batch PBBR. Continuous PBBR was operated at various flow rates (5-30mL/h) under optimum condition over a period of 75days. Inlet loading rates and elimination capacities were observed in the range of 36-216 and 7.20-145.4mg/L/day with an average removal efficiency of more than 90% under steady state conditions. GC/MS analysis confirms phosphorodithionicacid,O,O,S-trimethylester and diethylmercaptosuccinate as metabolites. Biodegradation of Malathion under inhibitory and non-inhibitory conditions was studied using Monod and Andrew-Haldane models and the kinetic constants were calculated and found to be µmax 0.271 per day; Ks 126.3mg/L using Monod and µmax 0.315 per day; Ks 151.32mg/L; Ki 594.75mg/L using Andrew-Haldane models.
Palavras-chave
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Biodegradação Ambiental
/
Reatores Biológicos
/
Malation
Idioma:
En
Revista:
Bioresour Technol
Assunto da revista:
ENGENHARIA BIOMEDICA
Ano de publicação:
2017
Tipo de documento:
Article
País de afiliação:
Índia