Photocatalytic degradation of pharmaceutical wastes by alginate supported TiO2 nanoparticles in packed bed photo reactor (PBPR)
作者： Santanu Sarkar , Sudip Chakraborty , Chiranjib Bhattacharjee
DOI: 10.1016/J.ECOENV.2015.02.035
关键词:
摘要: In recent years deposal of pharmaceutical wastes has become a major problem globally. Therefore, it is necessary to removes waste from the municipal as well industrial effluents before its discharge. The convectional wastewater and biological treatments are generally failed separate different drugs streams. Thus, heterogeneous photocatalysis process becomes lucrative method for reduction detrimental effects compounds. main disadvantage reuse or recycle tedious job. this work, degradation aqueous solution chlorhexidine digluconate (CHD), an antibiotic drug, by was study using supported TiO2 nanoparticle. concern bring down limitations suspension mode implementation immobilized with help calcium alginate beads. catalyst beads characterized scanning electron microscopy coupled energy dispersive X-ray spectroscopy (SEM/EDAX) characteristic crystalline forms nanoparticle confirmed XRD. efficiency impregnated (TIAB) compared performance free suspension. Although, reduced considerably TIAB but increased quite appreciably. kinetic parameters related work have also been measure. Moreover, susceptibility present system other three ibuprofen (IBP), atenolol (ATL) carbamazepine (CBZ) carried out TiO2. continuous operation in PBPR ensured applicability along treatment. variation residence time significant impact on PBPR.
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