rhea international team
TRANSCRIPT
Davide Tocchetto, Ph.D. Andrea Zorzi, Grad.Mauro Lajo, Entr. Giacomo Rossi, Eng.
We use gentle technologies to protect the planet and help people
live better
About Us
In one team:business experience, design and
management of the construction site, systematization processes and innovation.The team counts 152 plants built and 479
designed all over the world.
Experience
Innovations for the Environment
Phytoremediation
RECONSTRUCTION OF WETLANDS They are natural systems of treatment of
sewage coming from urban areas or the majority of industrial plants; this systems exploit the interactions between plants, gravel, different kind of soils, bacteria and microalgae.
Phytoremediation - WetlandsVertical flow systems
Phytoremediation - WetlandsHorizontal flow systems
Imhoff tankBiological treatment by activated sludge
Phytoremediation - WetlandsSedimentation of the solid fraction
Images: TILLEY et al. (2014)
Phytoremediation - Results
FLOATING SYSTEMS (Patented by DAVIDE TOCCHETTO PhD)
CLEANWATER
POLLUTEDWATER
Phytoremediation – WetlandsRestoration of river and lake ecosystems:
Phytoremediation – WetlandsRestoration of river and lake ecosystems:
Phytoremediation – WetlandsRestoration of river and lake ecosystems:
CIVIL BUILDINGS AND URBAN AREAS
BREEDING FARMS
PARLOURS
CHEESE FACTORIES
INDUSTRIES PROCESSING PLANTS PRODUCTS: WINE, OIL, ETC.
INDUSTRIES THAT PRODUCE LIQUID WASTE: Galvanic and hydrocarbons, spinning mills, etc.
Phytoremediation – WetlandsIt's perfect for:
Implementation of a phytoremediation system in a farm of pigs (600 units), in the province of Bolivar, Ecuador.The system has a dimension of 400 m2, and is composed by: 2 pools of sedimentation (primary and secondary), 1 pond that houses the filter, 3 pools of phytoremediation.
Phytoremediation – WetlandsExamples – Ecuador
FLOATING GARDENS - PHILADELPHIA - USA
PHYTOREMEDIATION SYSTEM IN URBAN AREA - PADOVA - ITALY
Phytoremediation – WetlandsUSA - Italy
Implementation of a phytoremediation mixed system (horizontal - vertical flow) in a barn in Japan.This type of system is also efficient in the autumn and winter seasons.
Phytoremediation – ExamplesJapan
Oman
Phytoremediation system (240 hectares), treating 47000 m³ of waste waters by day, coming from an oil refinery; the water at the exit of the system is reused for irrigation.
Phytoremediation – Examples
ANAEROBIC DIGESTION Also called biomethanisation, is
the biochemical decomposition of complex organic matter by different activities performed by bacteria, in the absence of oxygen.
The two main products are biogas (methane) and a mixture of biomass and bacteria, that can be used as a fertilizer.
Bio-digesters
Bio-digestersBiogas: Performace and Applications
Energetic autonomy in a context of increased cost of fossil energy;
Reduction in the purchase of fertilizer through the valorisation of produced biomass;
Transformation of manure in organic fertilizer, more easily assimilated by plants, with reduction of odors and disease-causing agents.
Processing of organic waste at competitive prices; more than 50% of garbage is organic and biodegradable.
Reduction of the pollution in the environment.
Bio-digestersEconomic and environmental advantages
Thermometer
Manometer
Bio-digestersThe system
\
Handling system (pulley)Biomass
storage (batch)
Pulley – to reduce weight
Coverage to protect the bio-digester against UV rays
Bio-digester
SEPARATION OF THE SOLID PHASE FROM THE LIQUID THROUGH PERCOLATION
- SOLID (10%) used as fertilizer
- LIQUID (90%): NH3 for agronomic use (to be buried in low depth to avoid the release of N2)
Bio-digesters Installation
Bio-digesters Industrial solutions
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CONTACT US
“Wisdom demands a new orientation of science and technology towards the organic, the gentle, the non-
violent, the elegant and beautiful.”E.F. Schumacher