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TARTRATE STABILIZATION via STARS/Electrodialysis

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TARTRATE STABILIZATION via STARS/Electrodialysis. What is STARS/Electrodialysis. STARS/Electrodialysis clockwise from top left STABILAB predictive & verification test (DIT/ISTC50 STARS/Electrodialysis 3,200 gal/hr RO 70%+ waste water reduction.

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what is stars electrodialysis
What is STARS/Electrodialysis

STARS/Electrodialysis clockwise from top left

  • STABILAB predictive & verification test (DIT/ISTC50
  • STARS/Electrodialysis 3,200 gal/hr
  • RO 70%+ waste water reduction
stars ed annual volumes tartrate stabilized
STARS/ED - Annual Volumes Tartrate Stabilized
  • Machines currently in service:

ED800 (ED = Electrodialysis / 800 = gallons per hour)

Terravan, CA                                      ED400

Chandon, CA                                      ED1600

St Supery, CA                                     ED800

Winesecrets, CA                              ED800

Canadian Winesecrets, CAN        ED600

Oregon Winery ED800

ChtSt Michelle, WA                        ED1600

Vincor Ontario, CAN                       ED800

Diamond Estate, Ontario, CAN   ED800

Oenodia, CA                                       ED800 (Rental unit)

  • Average yearly volume processed with above machines: ~ 5,000,000 gal
  • Average yearly volume for Mobile Service units (Winesecrets) : ~1,000,000 gal
  • Additional units for 2012: 3 wineries (2- ED800 & 1 ED2400) with annual volume of ~ 3,500,000 gallons
  • Total approximate annual volume tartrate stabilized: ~ 8MM to 10MM gallons
  • Annual Global Production: ~ 200 MM gallons or ~ 3% of global wine volume
    • ~ 10% sparkling
    • ~ 40% red
    • ~ 35% white
    • ~ 15% rose
stars electrodialysis economics
STARS/Electrodialysis Economics

If you own a STARS unit:

  • Operations cost $ 0.03-0.05 per gallon includes membrane replacement
  • Process from 800 up to 3,200 gallons per hour
  • Investment $ 200,000 to $ 800,000

Cold stabilization by refrigeration costs $ 0.07-0.16 per gallon.

2 to 3year Return On Investment, at today’s energy rates. Utility rebates are improving this further

stars electrodialysis how does it work
STARS/Electrodialysis - How does it work?

Continuous operation, controlled by reduction of conductivity from tartrate removal. No additives are used to inhibit precipitation or stabilize the wine.

System consists of 4 steps/processes:

  • Determine reduction of conductivity to achieve stability via STABILAB
  • Pass wine between the membranes to reduce conductivity by removing tartrates via STARS.
  • Monitor conductivity to ensure stability via onboard conductivity meter
  • Verify wine stability via STABILAB (ISTC50 test)
stars electrodialysis dit stars istc50 a comprehensive approach to tartrate stabilization
STARS/Electrodialysis – DIT -> STARS -> ISTC50A comprehensive approach to Tartrate Stabilization

2-Probe STABILAB with Heating bath for DIT test to predict tartrate instability, STARS processing rate and confirmation test - ISTC50, post STARS treatment

(DIT- Degree of Tartaric Instability)

(ISTC50- Critical Tartaric Stability Index)

STARS/Electrodialysis ED3200

3,200 gallon per hour system

Semi-automated operation

Can run 24 hours per day with 2 CIP’s each taking about 1.5 hrs. (~20hrs/day)

stabilab predict tartrate stability
STABILAB: Predict Tartrate Stability
  • Based on conductivity variation over 4 hrs.
  • Wine samples are tested at -4°C / 24.8°F and seeded with KHT
  • Calculates drop in conductivity required for an “infinite time” or “absolute wine stability”
  • Provides drop in conductivity rate (DIT) for STARS treatment (processing rate in %, e.g., 18%, 22%)
  • Verifies STARS treated via ISTC50 test (6 days @ -4°C or 24.8°F)
  • All results are stored in software, can be printed and converted to PDF files
  • Patented tests (INRA / EURODIA)
  • Used in major labs throughout Europe and North America
    • Sarco Laboratories, ETS, Napa Valley Think Tank,
stars electrodialysis in operation1
STARS/Electrodialysis in Operation
  • Automated operation, regulated by conductivity or pH
    • Onboard / Inline conductivity meter
    • Hand-held conductivity meter for verification (included)
    • 12hr run cycle after which a CIP is required
  • Single pass, tank to tank processing
  • Pre-filtration at <5 μm required, preferably via XF
  • Wine should be at cellar temperature
  • No wine loss (0.5% to 1.5% of total wine volume)
  • No oxygen pick up
  • Time saving: up to 64,000 gal/day or more
  • Power consumption: 0.009 KWh/gal vs. 0.8 to 1.0 KWh/gal for cold stabilization
  • Water consumption: 3% to 5% of total wine volume – not included is the water used for cooling tower
stars electrodialysis membranes
STARS/Electrodialysis Membranes

Oenodia’s Membrane Stack – 400g/h/stack

tartrate stabilization via stars electrodialysis two chamber membranes

SPACER

SPACER

Water/Conductant

s

s

ANODE

WINE-out

K+ CA++

WINE-in

CATHODE

Conductant/Effluent

CATIONIC

MEMBRANE

ANIONIC

MEMBRANE

CATIONIC

MEMBRANE

Chamber 2 - Conductant

Chamber 1 - WINE

TARTRATE STABILIZATION via STARS / ELECTRODIALYSISTwo-Chamber Membranes

AT -

tartrate stabilization via stars electrodialysis two compartments principle

Conductant/Brine

K

A

K

A

K

A

K

A

K

A

K

E

K+

Ca++

K+

Ca++

K+

Ca++

K+

Ca++

T--

T--

T--

T--

T--

HT-

HT-

HT-

HT-

HT-

Water

TARTRATE STABILIZATION via STARS / ELECTRODIALYSIS(Two Compartments Principle)

Stabilized Wine or Grape juice

K : cationic membrane

A : anionicmembrane

E : electrolyte

Anode

Cathode

-

+

Wine or Grape juice

right technology right time
Right Technology, Right Time

STARS helps resolve current issues:

environmental sustainability energy required by wine production
Environmental Sustainability:Energy required by Wine Production

Lawrence Berkeley National Laboratory

  • Average energy intensity
    • 400 GWh/year [PG&E]
    • 0.8 - 3 kWh/Gallon
    • $0.09 - $0.33/Gallon
    • 1 – 3 % of revenue stream
  • Major energy expenses
    • Fermentation
    • Clarification-Stabilization
    • Other (Lighting, Office equipment, others)
global stars electrodialysis units in use total units 149
Global STARS/Electrodialysis Units In UseTotal units: 149

France: 45 units

Italy: 45 units

Germany: 4 units

Austria: 2 units

Switzerland: 1 unit

Hungary: 1 unit

Greece: 2 unit

Spain: 7 units

Portugal: 3 units

Morocco: 2 units

Bulgaria: 1 unit

Russia: 3 units

Ukraine: 1 unit

USA: 11 units

Canada: 2 units

Chile Argentina: 5 units

Brazil: 1 unit

Australia: 3 units

New Zealand: 2 units

South Africa: 7 units

China: 1 unit

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