ECOLOGICAL TREATMENT PROCESSES OF WASTEWATERS FROM MILK INDUSTRY

Specific technological processes milk is characterized by a significant loss of drymatter in the effluents. Wastewaters from technological processes milk contain large amounts of protein, fat and lactose. Thanks to these components, simple discharge, without prior purification would cause environmental pollution.Wastewater from milk processing enterprises are composed of industrial wastewater (pollution); domestic wastewater from toilets and clean conventional wastewater (cooling, heating and condensing) – unpolluted. In enterprises to obtain drinking milk and acidic dairy products, industrial waste waters are represented by the washing and cleaning waters results at the reception of raw milk, or to fill containers, at sanitizing the means of transport (trucks), of pasteurizers, the evaporators etc. These waters contain traces of milk and chemicals used for cleaning and disinfection. Industrial waste water include also washing waters results from the processing of butter (buttermilk). Usually, due to the content of fat and minerals, the first wash waters are used in order to feed purpose. In some cases, whey obtained from cheese production is discharged with wastewater. Because these waters represent an important factor of pollution, is recommend the use of the feed, or exploitation in other ways.The other components of industrial waste water from a milk processing enterprises are represented almost exclusively by water washing and cleaning appliances, container and manufacturing spaces