REUSE & RECYCLE OF DAIRY WASTE WATER BY USING NATURAL BIO-REACTOR
Keywords:
COD, BOD, TSS, pH, Alkalinity, Temperature, TDS, Turbidity, DO, MPN, Earthworm (Eudrilus Eugenie).Phytoremediation.Abstract
Increase in demand of milk and their product many dairies of different sizes have come up in different
places. The dairy industry involve processing raw milk into product such as consumer milk , butter , cheese, yogurt,
condensed milk dries milk (milk powder),and ice cream, using processes such as chilling , pasteurization ,and
homogenization. The typical by product of milk are buttermilk, whey, and their derivatives. The effluent are generated
from milk processing through milk spillage, dripping, washing of cans, tankers bottles, utensil, and equipment’s and
floors. The dairy industry generates on an average 2.5-3.0 liters of waste per liter of waste water per liter of milk
processes. Generally this wastewater contains large quantities of fat, casein, lactose, and inorganic salt, beside
detergent, sanitizer, etc. Used for washing. These all contribute largely toward their biological oxygen demand (BOD),
chemical oxygen demand (COD) and oil and grease much higher than the permissible limits. For reuse this waste water
for irrigation and much other purpose we have to clean this wastewater up to Permissible limit by using natural
bioreactor (earthworm) by passing it through a filter media.From our experiment data it was found that there is
percentage reduction in effluent in a BOD, COD, TSS , Alkalinity, TDS, Turbidity, MPN like upto
50%,60%,20%,40%,55%,15% .
