waste water treatment at the Hilltop Brewery - Great Lakes Water ...

New Glarus Brewing Wastewater Treatment Plant

A Short History • The “expansion” • Why build a pretreatment plant • Economics • Environmental steward • PoliCcs • Why MBR technology was chosen • Footprint/aestheCcs • Manpower • Expansion • Results

The Basics – Incoming Water • Volume: 40,000 gal/day (75,000 max) • BOD: 4500 mg/L • Phos: 65 mg/L • TSS: 550 mg/L • pH: 3.5-­‐12.5 • CausCcs, acids, beer, yeast, chlorine & other sterilizers, soaps • Brewery process only, no sanitary

The Basics – Water in Treatment • Target TSS: 9,000 mg/L • pH: 3.5-­‐12.5 • Approx 7 days residence Cme

The Basics – Effluent • Volume: 30 gpm (60 gpm w/addiConal membranes) • BOD: 10 mg/L • Phos: 5 mg/L • TSS: 7 mg/L • pH: 7.9 – 8.3

How It Works • EQ Chest – Buffer/surge tank (size very important) • DAF – Removes FOG’s and small solids • Anaerobic Chest – Phosphorus uptake • Anoxic Chest – N2 removal & filament/foam control • Aerobic Chest(s) – 1-­‐2ppm O2 , lets bugs do their work • Membranes – final pass through biomass & final clarificaCon • Solids Tank – holds wasted sludge

Economics • Designed and built by MSB Corp. • $2M project • $6,000/month operaCng costs (inc. labor) • Saving $35,000/mo. – eliminated surcharges • 7-­‐12 yr. payback

Sustainability • Water Re-­‐use • IrrigaCon for hop fields • IrrigaCon for lawns & landscaping • Re-­‐use as cleaning water (with further processing) • $35K/mo to help fund • Energy saving measures • RO and carbon filters for cleaning water • Solar • Wind

Membranes

Controls/OperaCon

DAF

Solids Removal

Bio-­‐Filter

Riverside

Hilltop

Air Basin

Other stuff • Upsets • Membrane plugging • Heat • Sludge disposal • Diffuser maintenance