(PDF) Design of a car wash waste water treatment process,
Waste water samples from 12 different car wash service stations were collected and tested for the physiochemical parameters of TDS, TSS, turbidity, pH, BOD, COD sulphate, salinity, conductivity,How do sand and gravel filter water in a filtration tank,,Hey , Sand and gravel filter acts as a check for the suspended particles in the water. The cohesive and adhesive forces between the the suspended particles and sand,gravel ensures sticking of the particle in the surface of sand and gravel . Hence,Water Purification Advantages and Disadvantages,,You need to drink water to survive. But if water is not treated, or purified, properly, it can make you very sick. There are no disadvantages to water purification -- it's essential for healthy drinking water -- but it has some shortcomings because it may not remove every possible contaminant from drinking water.