| Abstrakt: |
With the current environmental concern on water waste related issues, there is a need to make aware of disposal wastewater safely and beneficially. This effluent can be used for agricultural purpose and it could be an important step for consideration of disposal in a proper way, treated and planned. The local studies are essential and needed to determine the quality of effluent in order to keep no loss in crop yields, soil and ground level water deterioration. Peroxidases have a wide potential in bioremediation of wastewater polluted with phenol derivatives, industrial effluents, decolourization of synthetic and natural dyes, elimination of endocrine disruptive chemicals, degradation of herbicides and pesticides, chlorinated dioxins, chlorinated alkanes and alkenes, polychlorinated biphenyls and chlorinated insecticides. Nowadays, the interest is preoccupied on nanozymes having peroxidase mimicking activities owing to their encouraging and favorable wide applications in biosensing, bioimaging and biomedicine. Brassica oleracea (broccoli) is a rich peroxidase source having activity 1.35 U/mL. UV-visible analysis and cyclovoltametric studies indicated that CeO2 NPs can substitute peroxidase under optimized conditions. CeO2 NPs efficiently oxidized α-naphthol, β-naphthol, anthracene and naphthalene with less oxidation potential respectively compared to peroxidase. On treatment of water effluent with peroxidase the value of BOD, COD and turbidity comes out to be 36, 60 mg/L and 10.03 NTU respectively. On treatment of water effluent with CeO2 NPs the value of BOD, COD and turbidity where lower and found to be 18, 28 mg/L and 5.4 NTU respectively. The result indicates that nanozyme efficiently degrades the phenolic and other aromatic compounds present in the waste distillery water discharged.CeO2 NPs behave as a catalyst by boosting the peroxidase activity twice. This preliminary study demonstrated that nanoparticle treatment of wastewater is more effective than enzymatic treatment and its use will be a cost-effective substitute to conventional technologies in India. [ABSTRACT FROM AUTHOR] |
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