The effect of ozone on tannery wastewater biological treatment at demonstrative scale |
| |
Authors: | Claudio Di Iaconi Roberto Ramadori Antonio Lopez |
| |
Affiliation: | aIstituto di Ricerca Sulle Acque – C.N.R, Via F. De Blasio 5, Bari, Italy;bIstituto di Ricerca Sulle Acque – C.N.R, Area della Ricerca Roma 1, Via Salaria Km 29.300, Montotondo Scalo (Roma), Italy |
| |
Abstract: | This paper reports the results obtained during an investigation aimed at transferring to the demonstrative scale an aerobic granular biomass system (SBBGR – Sequencing Batch Biofilter Granular Reactor) integrated with ozonation for the efficient treatment of tannery wastewater. The results show that the integrated process was able to achieve high removal efficiencies for COD, TSS, TKN, surfactants and colour with residual concentrations much lower than the current discharge limits. Furthermore, the process was characterised by a very low sludge production (i.e., 0.1 kg dry sludge/m3 of treated wastewater) with interesting repercussions on treatment costs (about 1 € per m3 of wastewater). |
| |
Keywords: | Tannery wastewater treatment Sludge production SBBGR technology Ozonation |
本文献已被 ScienceDirect 等数据库收录! |
|