Coagulation And Flocculation In Water Treatment Pdf

The water is then gently stirred to allow the particles to come together and form larger particles floccula tion which can then be.

Coagulation and flocculation in water treatment pdf. Suspended particles vary in source charge particle size shape and density. 20 to 60 min in the flocculator design gt also known camp no. A study was conducted for the treatment of canal water using coagulation flocculation sedimentation process. Adding excess coagulant beyond charge neutralization.

First steps to treating surface water 2. Coagulation and flocculation. This thesis aimed to enhance the functions of coagulation and flocculation in the wastewater treatment process which can lead to the optimal dosing of chemical reagent and the lower chemical residual in the post treated wastewater. 1 2 sec g value for flocculation.

700 to 1000 s 1. 20 to 80 s 1. The significance of coagulation flocculation in the area of water and wastewater treatment is reviewed and evaluated emphasizing on the series of applications employed including. Flocculation is a water treatment process following coagulation which uses gentle stirring to bring the suspended particles together so they will form larger more settleable clumps called floc.

Coagulation flocculation and sedimentation. Filtration and disinfection activities. Earthen jars used to store water it is good to keep water in copper vessels to expose it to sunlight and. Most drinking water treatment plants operate using sweep flocculation requires a higher coagulant dose rather than charge neutralization.

The project was approached by reviewing relevant literature and conduct ing experiments. Coagulation and flocculation are used to separate the suspended solids portion from the water. Alum ferric sulfate and ferric chlorides were used. Filtration and disinfection time required 30 summary in this lesson students learn about the first three steps of a conventional surface water treatment plant.

Correct application of coagulation and flocculation depends. 04 27 16 water treatment 59 g value for coagulation. 30 to 60 s in line blender. Groundwater and surface water contain both dissolved and suspended particles.

Coagulation flocculation and settlement in coagulation a liquid coagu lant such as aluminium sulfate is added to the water to attract suspended particles. A product of g and t is commonly used as a design parameter typical gt for flocculation is 2 x 104 105 large g and small t gives. 3000 to 5000 s 1 for mixing time.