Water
is an important process medium used in cleaning, disinfection, cooling and
heating practices in dairy plants. Large amounts of water is used so high
amount of organic matter loaded wastewater is obtained during manufacture of
dairy products. Dairy wastewater
contains cleaning water mixed with milk or milk products poured out during
processing and packaging, whey from cheese-making, brine, buttermilk, fat, oil
and grease, chemical agents, detergents and sanitizers used in cleaning
practices. Dairy wastewater is characterized with its high BOD and COD levels
due to high level of organic matter content. Environmental problems can occur
when dairy effluents are discharged without treatment or discharge of
semi-treated wastewater. Dairy wastewater is treated generally by biological
and physicochemical methods. Success of the treatment depends on composition of
wastewater. Dairy wastewater can be effectively treated by biological methods
due to its nutritious nature. Activated sludge process is the most commonly
used technique. C, N and P can be biologically separated from dairy plant
wastewater. Activated sludge process is an environmentally friendly, economic
and efficient technique when target waste is properly selected. Microbial
community present in sludge used during treatment is called as activated
sludge. In this review, the properties of dairy wastewater, the principles of
activated sludge process and the functions of microbial community used in
activated sludge process are stated.
Primary Language | Turkish |
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Journal Section | Review Papers |
Authors | |
Publication Date | September 2, 2019 |
Submission Date | April 20, 2019 |
Published in Issue | Year 2019 Volume: 17 Issue: 2 |
Bu eser Creative Commons Atıf-GayriTicari 4.0 (CC BY-NC 4.0) Uluslararası Lisansı ile lisanslanmıştır.
Akademik Gıda (Academic Food Journal) is licensed under a Creative Commons Attribution-NonCommercial 4.0 International (CC BY-NC 4.0).