Comparing BOD Tests for Wastewater from Pulp and Paper Mills
Author Information
Author(s): Katri Roppola, Toivo Kuokkanen, Hannu Nurmesniemi, Jaakko Ramo, Risto Poykio, Hanna Prokkola
Primary Institution: University of Oulu
Hypothesis
The manometric respirometric test will provide more accurate BOD measurements compared to conventional chemical methods.
Conclusion
The manometric respirometric test is a practical and accurate method for determining BOD in wastewater, showing significant advantages over traditional methods.
Supporting Evidence
- The manometric respirometric test showed BOD values that were closer to the actual measurements after two to three days of incubation.
- Dilution of wastewater samples significantly affected the BOD7 values, especially in paper mill samples.
- The study confirmed that the respirometric method is suitable for measuring BOD in wastewater from pulp and paper mills.
Takeaway
This study found a faster way to measure how much oxygen is needed to break down waste in water, which helps treat wastewater better.
Methodology
The study compared BOD measurements using manometric respirometric tests and conventional chemical methods on wastewater samples collected from a pulp and paper mill.
Potential Biases
Potential bias due to the influence of dilution on BOD measurements.
Limitations
The study's findings may not be applicable to all types of wastewater, particularly those with different nutrient contents.
Digital Object Identifier (DOI)
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