Coagulation And Flocculation In Water Treatment Definition

Most water treatment practices including coagulation flocculation and clarification date back hundreds and in some cases thousands of years.
Coagulation and flocculation in water treatment definition. Typical treatment processes consist of grates coagulation flocculation sedimentation granular filtration and disinfection. Main difference coagulation vs flocculation. In water treatment coagulation flocculation involves the addition of compounds that promote the clumping of fines into larger floc so that they can be more easily separated from the water. Water supply system water supply system coagulation and flocculation.
Coagulation and flocculation for wastewater treatment represent tested ways to improve. Suspended particles cannot be removed completely by plain settling. Earthen jars used to store water it is good to keep water in copper vessels to expose it to sunlight and. References as old as 2000 b c describe what we know today as coagulation.
Coagulation and flocculation in water and wastewater treatment. Suspended particles vary in source charge particle size shape and density. Coagulation and flocculation. However they can be commonly adopted for de stabilizing any suspension system.
Correct application of coagulation and flocculation depends. Coagulation is a chemical process that involves neutralization of charge whereas flocculation is a physical process and does not involve neutralization of charge. Flocculation and sedimentation are widely employed in the purification of drinking water as well as in sewage treatment storm water treatment and treatment of industrial wastewater streams. Coagulation and flocculation are an essential part of drinking water treatment as well as wastewater treatment.
Coagulation and flocculation are used to separate the suspended solids portion from the water. Written by aos treatment solutions on april 3 2018. Flocculation and sedimentation are technological processes used by veolia water technologies south africa veolia within water treatment cycles to make water safe to drink or for water reuse flocculation and sedimentation cannot occur without coagulation and some of veolia s patented hydrex water treatment chemicals are used to facilitate all of these processes. This article provides an overview of the processes and looks at the latest thinking.
Groundwater and surface water contain both dissolved and suspended particles. Flocculation or floculation is a significant process widely utilized in water treatment operations including purification of drinking water sewage water treatment storm water treatment and treatment of various other industrial wastewater streams. What is coagulation and flocculation in water and wastewater treatment. Material for this article was largely taken from reference 1.
Because of this the sedimentation step is usually preceded by a chemical process known as coagulation.