Guest blogger | Lead Water and Sanitation Specialist | Water Global Practice, World Bank
Semipermeable membranes have been used for separation of phases since the 1950's, but are becoming increasingly sophisticated and in widespread use... Read more...
The Step Draw-Down Pumping Test (SDT) was developed by Jacob to determine aquifer transmissivity and well properties in cases where the standard... Read more...
Scavenging has existed in India since the beginning of Indian civilization. Read more...