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Advisor(s)
Abstract(s)
The wine sector has faced increasing pressure in order to fulfill the legal environmental
requirements, maintaining a competitive position in a global market. The rising costs
associated have stimulated the sector to seek sustainable management’s strategies, focussing
on controlling the demand for water and improving its supply.Some EU Directives were implemented concerning water
protection and management. These included in particular the Framework Directive in the
field of water policy and environmental legislation about specific uses of water and
discharges of substances.Several winery wastewater treatments are available, but the development of alternative
technologies is essential to increase their efficiency and to decrease the investment and
exploration costs.The main goals of the present paper are the comparison of different biological treatment
systems, in particular fixed and suspended biomass, operating under aerobic conditions.
Since the accurate design of the bioreactor is dependent on many operational parameters,
aspects related to hydraulic retention time; oxygen mass transfer and contact time, energetic
costs; sludge settling and production; response time during startup, flexibility and treated
wastewater reuse, in crop irrigation, with the aim of closing the water cycle in the wine
sector, will be addressed. A new treatment system will be presented as a case study, an air
micro-bubble bioreactor (AMBB), that will highlight the advantages and constraints on its
performance at bench-scale and full-scale, in order to fulfill the gaps associated with the
implemented winery wastewater treatment systems. The data presented was collected
during four years monitoring plan and used to develop a tool to support the selection of the
best available technology. The present study will also contribute to the implementation of an
integrated strategy for sustainable production in the wine sector, based on a modular and
flexible technology that will facilitate compliance with environmental regulations and
potential reuse for crop irrigation. This approach will contribute to the development of a
bio-based economy in the wine sector that should be integrated in a Green Innovation
Economy Cycle.
Description
Keywords
winery wastewater wastewater treatment Bioreactor Indústria do Vinho Adega Água residual Tratamento da água residual Impacto ambiental
Citation
OLIVEIRA, M.; DUARTE, E. (2011)- Winery wastewater treatment : evaluation of the air micro-bubble bioreactor performance In Hironori Nakajima(ed.) : Mass transfer: advanced aspects. Shangai: InTech. 385-412