Dairy Farming : Dairy farming is a type of agri-business involved in the production of milk from domestic animals. The plant which processes milk and produces milk products are called dairy plant or dairy. Animals which are used for milk production in the dairy farm are called dairy animals. Water used for dairy industry should meet the requirements of at least drinking water quality, so the factories need to treat the water. The water taken from the wells needs to be pre-treated because of iron and manganese concentration and due to specific requirements in various industrial processes.
Filtration of milk should not be used as a means of rectifying unsatisfactory milking procedures. Although filtration removes most of the soil and other particles, it does not remove all the bacteria adhering to these particles, nor does it remove any dissolved matter from the milk. Sediment that has been trapped by the filter continues to be washed by the milk flowing through. This dislodges bacteria adhering to the particles and thus contributes to an increased bacterial count in the bulk milk.
Forcing milk through an in-line filter by a pump is the most common method of filtering milk in modern milking plants. Main In-line filters should be fitted so that the milk is filtered before cooling. This allows the milk to be warm when filtered and facilitates the passage of milk fat through the filter.
Milk filtration is enhanced by low milk pressures and continuous uniform milk flow through the filter. The use of different types of milk pumps, combined with varying milk flow rates, may make low pressure and constant flow difficult to achieve.