Purpose Of  Sedimentation Sedimentation is a unit operation to settle out the suspended particles and flocs in water. Sedimentation water treatment is achieved by lowering the velocity of the water below...

Flocculation is the operation in which the coagulated water must be gently mixed at a propeller speed of 15 to 20 rpm to promote the growth of the floc. Slow mixing is resorted to agglomerate the floes to grow...

Water Treatment Coagulants Coagulant water treatment chemicals come in two main types - primary water treatment coagulants and coagulant aids. Primary coagulants neutralize the electrical charges of particles...

Types of Suspended Particles in  WATER There are three types of particles which can be found in water in suspension and cause turbidity. In the order from smallest to largest, these particles are chemicals in...

WATER RESOURCES Need and Importance  of  Water According to the theory of evolution, life began with water. Water comprises 70% of the human body. It is the basis for life in any ecosystem because it...

Safety Require for Water Treatment Plant Chlorine Cylinder  Room. Chlorine house should have to following features: The chlorine cylinders and feeders should be housed in an isolated room from the Water...

Hypochlorinators The simplest method of continuous chlorination of water supply systems for a water flow of less than 200 Lpm is by the use of a hypochlorinator. Hypochlorinators are motor driven pumps which...

Operation and Maintenance of Pumps and Pumping Stations The preventive maintenance procedures related to pumps and pumping stations are listed below: i. Inspect pump station daily to Determine pump condition,...

Types of Corrosion Corrosion can occur on the outside of a pipe (due to corrosive soil) or on the inside of a pipe (due to corrosive water.) Either outside or inside a pipe, the creation of the corrosion cell...