Slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. 04/27/16 water treatment 37 Slide 13 of 27 38. Coagulation and flocculation occurs in successive steps, allowing particle collision and growth of floc. Sedimentation Flocculation Coagulation Coagulation and Flocculation Coagulation and flocculationconsist of adding a floc-forming chemical reagent to a water to enmesh or combine with nonsettleable colloidal solids and slow-settling suspended solids to produce a rapid-settling floc. The floc is subsequently … Student ID 2015PCE5271 The repulsive forces are due to the electrostatic ZP The attractive forces are due to van der Waals forces acting between the particles. After coagulation the destabilized particles can collide, aggregate so flocs can be formed. Coagulation: Coagulation is the step where colloidal par ticles (similar t o spheres of a diameter of less than 1 micrometer) are destabilized. water treatment Introduction The need to clarify water. Beyond this point the net … Coagulation, Flocculation, and Sedimentation Subject Area(s) Environmental Systems, Chemistry Associated Unit Drinking Water Treatment Process Lesson Title Drinking Water Treatment: Coagulation, Flocculation, and Sedimentation Header Grade Level 10 (9-12) Lesson # 2 of 3 Lesson Dependency Lessons: 1. coagulation, the coagulant chemicals neutralize the electrical charges of the fine particles in the water, allowing the particles to come closer together and form large clumps. 04/27/16 water treatment 36 37. Slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. Coagulation and Flocculation The Figure 8.4 shows the interparticulate forces acting on a colloidal particle. 5/3/2012. Coagulation, Flocculation and Clarification of Drinking Water Terry L. Engelhardt Application Development Manager Drinking Water Hach Company Photo by author The intent of this paper is to provide cursory information about coagulation, flocculation and clarification. J(Hans) van Leeuwen. The Adobe Flash plugin is needed to view this content. View 6 Coagulation_Flocculation (1).ppt from CIVIL GI EN at NED Univ. Coagulation and. Overview of Zeta Potential Concept, Measurement Use, and Applications, No public clipboards found for this slide. Share yours for free! Aesthetics and health Colloids impart color and turbidity to water aesthetical acceptability Microbes are colloids too water treatment 2. Chemical additives like sodium hydroxide and sodium hexametaphosphate (SHMP) may be added to water to reduce corrosion. Academia.edu is a platform for academics to share research papers. Worldwide, a combination of coagulation, sedimentation and filtration is the most widely applied water treatment technology, and has been used since the … Coagulation Flocculation - Free download as Powerpoint Presentation (.ppt), PDF File (.pdf), Text File (.txt) or view presentation slides online. See our User Agreement and Privacy Policy. Coagulation-Flocculation •In conventional coagulation-flocculation- sedimentation, a coagulant is added to the source water to create an attraction among the suspended particles. If coagulation is incomplete, flocculation step will be … View Coagulation Flocculation. If you continue browsing the site, you agree to the use of cookies on this website. The net resultant force is attractive out of the distance x. Slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. Coagulation / Flocculation Physical and chemical processes to induce collisions and growth of particles, and to remove some soluble contaminants Coagulation: Formally, means making particles “sticky” (rapid mix step); colloquially, also refers to forming new particles that collect dissolved contaminants Flocculation: Causing … Flocculation Prismita Nursetyowati. We use your LinkedIn profile and activity data to personalize ads and to show you more relevant ads. We use your LinkedIn profile and activity data to personalize ads and to show you more relevant ads. In flocculation one can make a distinction between … This step is called flocculation. Material for this article was largely taken from reference1.Coagulation and flocculation are essential processes in various disciplines. It involves the reduction of surface charges responsible for particle repulsions. Coagulation and Flocculation in Water Treatment. • Flocculation: is the slow mixing technique which promotes the agglomeration of the stabilized particles. 1. Many are downloadable. Slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. of Engineering & Tech.. Coagulation and Flocculation Dr Zuhaib Siddiqui Hamilton Water Treatment Plant Has a rated capacity of Basic principle of coagulation: Coagulation comes from the latin word ˙ coagulare ¨ which means ˙ to agglomerate ¨. See our Privacy Policy and User Agreement for details. Get the plugin now. Flocculation basins are used to promote growth of the destabilized floc by promoting particle-particle contact. Water quality can change frequently and operators must ensure they are on top of changing conditions. Large, heavy particles settle out readily, but smaller and lighter particles settle very slowly or in some cases do not settle at all. Learn new and interesting things. You can change your ad preferences anytime. FLOCCULATION Depends on: choice of additive, dosage, and conditions for floc formation. You can change your ad preferences anytime. This knowledge will provide a basis for … Flocculation Rapid mix (coagulation ) is followed by flocculation where there is slow, enhanced contact between destabilized (coagulated) particles. However, they can be commonly adopted for de-stabilizing any suspension system. Looks like you’ve clipped this slide to already. PPTs online, safely and virus-free! Overview of coagulation and flocculation 1 1.1. See our Privacy Policy and User Agreement for details. If you continue browsing the site, you agree to the use of cookies on this website. Process Description During flocculation, a process of gentle mixing brings the fine particles formed by coagulation into contact with each … Dirt particles in the water then stick together or coagulate and continue to stick together until heavy particles are formed. Because of this, the sedimentation step is usually preceded by a chemical process known as coagulation. If you continue browsing the site, you agree to the use of cookies on this website. Ppt coagulation and flocculation 1. Dirt particles in the water then stick together or coagulate and continue to stick together until heavy particles are formed. Types of Water Treatment Processes Coagulation or Flocculation In this process, liquid aluminum sulphate or polymer is added to water. 5/3/2012 Environmental Engineering-I. Coagulation and Flocculation PPT – Coagulation and Flocculation in Water Treatment PowerPoint presentation | free to download - id: 6e7d4a-ZjYxM. Coagulation … Now customize the name of a clipboard to store your clips. Topics of Discussion • The place of flocculation within a water treatment process • The use of coagulation and flocculation in the water industry • Softening • Separation of flocs by settling and flotation 04/27/16 water treatment 35 36. These heavy dirt particles are called flocs. See our User Agreement and Privacy Policy. C. Coagulation and flocculation Controlling corrosion: Dissolved oxygen and carbon dioxide which contribute to corrosion can be removed by de-aeration (e.g., through heating water). Remove this presentation Flag as Inappropriate I Don't Like This I like this Remember as a Favorite. Actions. Source: Coagulation and Flocculation of Wastewater in Textile Industry using … Many water treatment plants use a combination of coagulation, sedimentation, filtration and disinfection to provide clean, safe drinking water to the public. An operator cannot just set a dose and “hope” everything works out. The coagulation and flocculation process requires a great amount of attention to detail along the way. Coagulation and Flocculation In coagulation operations, a chemical substance is added to an organic colloidal suspension to cause its destabilization by the reduction of forces that keep them apart. Environmental Engineering-I (Water Supply Engg.) Flocculation: The process of agglomeration of the destabilized particles to such a size that separation by sedimentation and filtration is possible. Coagulation and Flocculation LOKESH SAINI M.Tech-I´st Semester Student ID 2015PCE5271 3/31/2016 1 2. A jar test simulates the coagulation and flocculation processes Fill the jars with raw water sample (500 or 1000 mL) – usually 6 jars Adjust pH of the jars while mixing using H 2 SO 4 or NaOH/lime (pH: 5.0; 5.5; 6.0; 6.5; 7.0; 7.5) Add same dose of the selected coagulant (alum or iron) to each jar Clipping is a handy way to collect important slides you want to go back to later. LOKESH SAINI There are two modes of particle-particle … Polyelectrolytes: act by charge neutralization and hydrophobic interaction to link cells to each other. Looks like you’ve clipped this slide to already. Water supply system - Water supply system - Coagulation and flocculation: Suspended particles cannot be removed completely by plain settling. If you continue browsing the site, you agree to the use of cookies on this website. In potable water treatment, clarification of water using coagulating agents has bee… Coagulation and flocculation are an essential part of drinking water treatment as well as wastewater treatment. Phosphoric acid – flocculating agent in scp process. Get ideas for your own presentations. Now customize the name of a clipboard to store your clips. • The final step is flocculation. - TE (CIVIL) Course material by PROF S S JAHAGIRDAR, NKOCET, SOLAPUR. clump together and settle out of the water, unless proper coagulation and flocculation is used. Main Difference – Coagulation vs Flocculation. L-17 Coagulation and Flocculation Part-I 3/31/2016 1. This article provides an overview of the processes and looks at the latest thinking. 1. Clipping is a handy way to collect important slides you want to go back to later. 1.1.1. Effective agents: Mineral colloids and polyelectrolytes. •The mixture is slowly stirred to induce particles to clump together into “flocs.” •The water is then moved into a quiet sedimentation … Basic introduction of equipments used in dairy industry, No public clipboards found for this slide. Coagulation and flocculation are two processes commonly used in water treatment in order to get rid of unwanted suspended material in water. This reduction in charge causes flocculation … 3/31/2016 2 Why coagulation and flocculation? Differences • Coagulation: is a chemical technique which is directed towards the destabilization of the charged colloidal particles. Water Treatment Companies in UAE - Types of Water Treatment Processes Coagulation or Flocculation In this process, liquid aluminum sulphate or polymer is added to water. 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