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July 2016 Wines&Vines 45 winemaking The wine industry has trusted Kennedy/Jenks Consultants for professional environmental engineering services since the 1950s. We specialize in providing cost-saving, sustainable solutions to meet winery needs. Wastewater Water Supply Storm Water Solid Waste Facility Planning Design Construction Management Hazardous Materials Water/Energy Audits Air Emissions and Odors Regulatory Compliance Land-Use Permitting/CEQA e: BobChrobak@KennedyJenks.com t: 415.243.2150 www.KennedyJenks.com/wine OUR SERviCES inCLUDE: www.scottlab.com "Cleanliness is the basic condition for wine quality." - Emile Peynaud BENEFITS OF AIRD CLEANING PRODUCTS • Signifcant water savings since no citric rinse is required • Specially formulated for the wine industry • Effective at low doses over wide temperature ranges • No chlorine, other halogens, phosphates, silicates or fillers • Do not require hazardous shipping • Safer, less environmental impact than bulk chemical cleaners into biogas. The polyphenols pres- ent in the lees were broken down, and the final concentration was lower than 50 mg/L. The nitrogen and phospho- rous present in the substratum become concentrated and more bioavailable thanks to the hydro- lysis of proteins and fats during digestion, making the digestate an interesting soil amendment (see "Characteristics of Sewage Sludge, Lees and Digestate"). Moreover, the digestate is a sta- bilized matrix thanks to the transformation of the most- likely-to-decay compounds pres- ent in sludge and lees into biogas. Therefore, spreading the diges- tate does not cause bad smells and avoids the proliferation of insects in the fertilized soils. Generally speaking, in order to sustain an anaerobic-diges- tion plant able to supply a co- generation group of 200kW of electricity in an average sized Italian winery without needing to purchase external biomasses, the reactor would need to be fueled with 23 cubic meters of lees daily and 53 m 3 of sewage sludge with a content of at least 2% solids. The reactor should have a volume of about 2,000 m 3 and would produce roughly 2,150 m 3 of biogas with a level of methane around 65%. 4,800 kWh of elec- tricity and 6,171 kWh of heat could be obtained from combus- tion of the biogas. This produc- tion could cover the energy requirements of the plant itself, and the surplus could be used for other winery requirements, including the generation of en- ergy for cooling. Sustaining a plant of these di- mensions requires a cooperative system able to focus the produc- tion of the area on just one point and distribute energy production to the production processes and neighboring rooms. An alternative to the creation of consortia sys- tems could be to send winemak- ing waste to anaerobic digesters already present in the area, espe- cially sewage plants equipped with digesters, which are gener- ally under-loaded (Da Ros et al., 2013), or to substitute corn silage in reactors that treat animal farm- ing waste, making the processes more sustainable. Cinzia da Ros and Cristina Cavinato are from the Università Ca'Foscari in Venice (Italy). Paolo Pavan, Franco Cecchi and David Bolzonella are from the Università degli studi in Verona (Italy). They thank Vinicola Serena Srl for their collaboration and ATS Scarl and Treviso City Council. WasteWater treatment suppliers Company Phone Website Aftek Inc. (585) 458-7550 aftekfilters.com Airgas (855) 625-5285 airgas.com Boergewr LLC (612) 435-7300 boerger.com Eaton (800) 859-9212 eaton.com/wine Enviro-Stewards (519) 578-5100 enviro-stewards.com Hanna Instruments (800) 426-6287 hannainst.com/usa Kennedy/Jenks Consultants (415) 242-2150 kennedyjenks.com Optek-Danulat, Inc. (888) 837-4288 optek.com P&L Specialties (707) 573-3141 pnlspecialties.com Pall Corp. (866) 905-7255 pall.com/foodandbev Shelco Filters (800) 543-5843 shelco.com Smith & Loveless Inc. (913) 888-5201 smithandloveless.com STRATA a|p Architecture (707) 935-7944 strataap.com Thermo Fisher Scientific (800) 225-1480 thermoscientific.com/water Vertiflo Pump Co. (513) 530-0888 vertiflopump.com For more information about the suppliers listed above, visit winesandvines.com/buyersguide or see Wines & Vines' 2016 Buyer's Guide.