Global comparison of dairy wastewater discharge limits including BOD, COD, TSS, nitrogen, phosphorus and other key parameters.
Nordic dairy wastewater standards. Norwegian, Swedish, Danish and Finnish effluent limits for milk and cheese processing.
Wastewater treatment for fluid milk processing plants. Handle CIP chemical consumption, spill milk and packaging residues.
Specialised wastewater treatment for dairy wastewater standards.
Australian dairy wastewater standards including AS 1210, AS/NZS 4020 and state EPA requirements for milk processing equipment.
| Parameter | Australia (Typical) | EU Urban Wastewater | Germany (Direct) | Netherlands | Denmark |
|---|---|---|---|---|---|
| BOD5 | < 300-600 mg/L | < 25 mg/L | < 20 mg/L | < 30 mg/L | < 15 mg/L |
| COD | < 1,000 mg/L | < 125 mg/L | < 110 mg/L | < 150 mg/L | < 75 mg/L |
| TSS | < 400-600 mg/L | < 35 mg/L | < 30 mg/L | < 50 mg/L | < 20 mg/L |
| Fats/Oils | < 15 mg/L | < 15 mg/L | < 10 mg/L | < 15 mg/L | < 10 mg/L |
| pH | 6.0 - 10.0 | 6.0 - 9.0 | 6.5 - 8.5 | 6.5 - 9.0 | 6.5 - 8.5 |
| Temperature | < 38°C | < 30°C | < 30°C | < 30°C | < 30°C |
| Nitrogen (Total) | < 50 mg/L | < 15 mg/L | < 18 mg/L | < 20 mg/L | < 8 mg/L |
| Phosphorus | < 10 mg/L | < 2 mg/L | < 1 mg/L | < 2 mg/L | < 0.5 mg/L |
Note: Limits vary by local authority, receiving water sensitivity, and treatment plant capacity. Always consult your local water authority for specific requirements. Trade waste agreements typically set stricter limits than general discharge standards.
| State | BOD (mg/L) | TSS (mg/L) | FOG (mg/L) | pH |
|---|---|---|---|---|
| Victoria (EPA) | < 300-600 | < 400-600 | < 15 | 6.0-10.0 |
| NSW (EPA) | < 300-500 | < 400 | < 15 | 6.0-9.0 |
| Queensland (DERM) | < 300-500 | < 400 | < 15 | 6.5-9.0 |
| South Australia (EPA) | < 300-500 | < 400 | < 10 | 6.0-10.0 |
| Western Australia (DWER) | < 300-500 | < 400 | < 15 | 6.0-9.0 |
Measures the amount of oxygen consumed by microorganisms decomposing organic matter. High BOD indicates high organic pollution.
Dairy sources: Milk solids, whey, lactose, proteins, fats
Measures the total oxygen demand of both biodegradable and non-biodegradable organic compounds. Higher than BOD for dairy waste.
Typical ratio: COD/BOD = 1.5-2.0 for dairy
Measures solid particles suspended in wastewater. Includes fats, proteins, and other insoluble materials from dairy processing.
Dairy sources: Curd particles, fat globules, protein aggregates
Measures lipid content that can cause blockages and interfere with advanced biological treatment. Critical parameter for dairy wastewater.
Dairy sources: Butterfat, cream, milk fat
Measures total nitrogen including organic nitrogen, ammonia, nitrite, and nitrate. Important for eutrophication control.
Dairy sources: Proteins, urea, cleaning chemicals
Measures phosphorus content which contributes to algal growth in receiving waters. Strictest limits in sensitive areas.
Dairy sources: Milk phosphates, cleaning agents
Australian dairy wastewater standards including AS 1210, AS/NZS 4020 and state EPA requirements for milk processing equipment.
View PageEuropean dairy wastewater compliance including PED, EHEDG, CE marking and EU effluent discharge regulations.
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