COD, Fat and Solids Reduction for Industrial Wastewater
Efficient wastewater pre-treatment to achieve indirect discharge quality
Compared to municipal wastewater, the generated industrial wastewater is much more polluted, and the composition of the wastewater varies greatly.
In particular, pollution by organic or inorganic substances depends on the sector of industry, the product range, the production methods and, last but not least, the individual usage behaviour.
Many industries discharge their wastewater directly into the sewer and must therefore comply with certain limits for COD and solids, ensure pH neutrality and reduce grease content to a minimum. Industries that operate their own biological wastewater treatment plant must also carry out this pre-treatment in order to ensure the functionality and economic operation of the plant.
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PROCESS TECHNOLOGY
HUBER solutions to reduce COD, fat and solids in industrial waste water
Part of this industrial pretreatment is usually:
- Screens for mechanical preliminary treatment
- Grit traps (where grit is present)
- Dissolved air flotation plants with chemical treatment stage
- Sludge treatment for resulting flotate sludge
Depending on the industry sector, type of wastewater and degree of contamination, the right machines and components have to be selected, as for example high grease contents require screen cleaning with high pressure or hot water.
HUBER has decades of experience in dimensioning and selecting the optimum machine technology for each industry wastewater pre-treatment application. As different requirements also demand different types of systems, HUBER has developed a wide range of various screens, fine screens, flotation plants and sludge treatment systems, which are in use in thousands of installations worldwide.
Separated and compacted screenings and grit are disposed of, while separated flotate (= organics) is usually further utilised in anaerobic sludge treatment as co-substrate or in approved biogas plants.
