The Spectral Absorption Coefficient (SAC) In The Influent Of Industrial Wastewater Treatment Plant For Dairies And Milk Processing FactoriesSource: Hach Company
The wastewater outlets from milk processing plants are subject to legal and technical requirements. If a dairy discharges into municipal sewers, the local discharge limits must be observed. If a company operates a wastewater pre-treatment plant or employs complete treatment, it is particularly important to ensure that wastewater quality is good during operation. This means an even feed of quality and quantity.
Organic load peaks must be detected and controlled early for an operator to be able to react correctly. Wastewater discharges with peak loads beyond the rated limits of the plant will result in operational problems during wastewater pre-treatment, or during complete treatment. For this reason, continuous assessment of the quality of the wastewater is necessary. This assessment can be made by measuring the Spectral Absorption Coefficient (SAC), a direct measurement of dissolved organics.
During the processing of milk and dairy products, wastewater enters the drains as well as the wastewater treatment plant feed. Fast changes in the wastewater load (particularly high peak loads) create major problems for the wastewater treatment plant. This causes a potential risk of an overload and a degradation in the treatment performance. The SAC curve covers a period of 48 hours and includes laboratory results for the COD measured in parallel.