The dairy whey wastewater has been causing major environmental pollution problems in terms of high load of BOD (Biochemical Oxygen Demand) and COD (Chemical Oxygen Demand) and therefore leads to serious environmental pollution problems. Traditional business approaches involving different commercial processes such as employing membranes are followed to treat dairy whey. But the biggest challenges are the adverse effect of the whey proteins on membranes (membrane fouling) and operating conditions for the membrane performances are not optimized in any of the literatures and thus recovery of water or permeate is a difficult job. Moreover no such prior art depicts a convenient and user-friendly process and treatment module together for dairy whey treatment along with a possibility of reuse. This book, therefore, provides a novel approach for solving the said issues under a common roof where dairy whey treatment followed by its reuse in the said industry has been achieved in a user friendly way.