EFCT: Environmental Footprint Comparison Tool.  A tool for understanding environmental decisions related to the forest products industry.  BOD/COD/TSS. headerlink
Effects of decreased release of B O D / C O D and T S S on water use

Mills that reduce discharges to water do so using two approaches: 1) reducing the loading of constituents delivered to the wastewater treatment system, also known as source reduction; or 2) installing additional treatment system capacity or components. The latter approach generally would not have a direct impact on water usage, though economic considerations in the application of advanced wastewater treatment measures may encourage effluent volume reductions.

Source reduction techniques frequently include actions that can also reduce effluent volumes. Installation of improved pulp cleaning technologies and enhanced attention to pulping liquor loss control are examples of source reduction techniques that have the co-benefit of reduced effluent volumes. Such opportunities are site-specific and detrimental effects associated with reducing effluent volumes may be important (discussed in the Water section of this tool).

More information on the interactions between reducing discharges to water and effluent volumes is available at the links to the right.

More information:

Liquor loss control and spill recovery

In-process improvements