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. Coagulation and flocculation occurs in successive steps, allowing particle collision and growth of floc. Now customize the name of a clipboard to store your clips. Clipping is a handy way to collect important slides you want to go back to later. Water quality can change frequently and operators must ensure they are on top of changing conditions. Differences • Coagulation: is a chemical technique which is directed towards the destabilization of the charged colloidal particles. Because of this, the sedimentation step is usually preceded by a chemical process known as coagulation. - TE (CIVIL) Course material by PROF S S JAHAGIRDAR, NKOCET, SOLAPUR. The repulsive forces are due to the electrostatic ZP The attractive forces are due to van der Waals forces acting between the particles. Beyond this point the net … Phosphoric acid – flocculating agent in scp process. Ppt coagulation and flocculation 1. You can change your ad preferences anytime. This knowledge will provide a basis for … 1. Slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. Polyelectrolytes: act by charge neutralization and hydrophobic interaction to link cells to each other. This step is called flocculation. Coagulation and Flocculation LOKESH SAINI M.Tech-I´st Semester Student ID 2015PCE5271 3/31/2016 1 2. This is then followed by sedimentation (see Sedimentation Chapter). Water supply system - Water supply system - Coagulation and flocculation: Suspended particles cannot be removed completely by plain settling. Basic introduction of equipments used in dairy industry, No public clipboards found for this slide. Slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. Worldwide, a combination of coagulation, sedimentation and filtration is the most widely applied water treatment technology, and has been used since the … 04/27/16 water treatment 37 Slide 13 of 27 38. After coagulation the destabilized particles can collide, aggregate so flocs can be formed. PPT – Coagulation and Flocculation in Water Treatment PowerPoint presentation | free to download - id: 6e7d4a-ZjYxM. Aesthetics and health Colloids impart color and turbidity to water aesthetical acceptability Microbes are colloids too water treatment 2. Dirt particles in the water then stick together or coagulate and continue to stick together until heavy particles are formed. The floc is subsequently … of Engineering & Tech.. Coagulation and Flocculation Dr Zuhaib Siddiqui Hamilton Water Treatment Plant Has a rated capacity of Main Difference – Coagulation vs Flocculation. Coagulation and flocculation are an essential part of drinking water treatment as well as wastewater treatment. water treatment Introduction The need to clarify water. See our Privacy Policy and User Agreement for details. See our Privacy Policy and User Agreement for details. • Flocculation: is the slow mixing technique which promotes the agglomeration of the stabilized particles. Coagulation and Flocculation in Water Treatment. Now customize the name of a clipboard to store your clips. •The mixture is slowly stirred to induce particles to clump together into “flocs.” •The water is then moved into a quiet sedimentation … 1. Basic principle of coagulation: Coagulation comes from the latin word ˙ coagulare ¨ which means ˙ to agglomerate ¨. 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 … See our User Agreement and Privacy Policy. Coagulation and Flocculation Coagulation-Flocculation •In conventional coagulation-flocculation- sedimentation, a coagulant is added to the source water to create an attraction among the suspended particles. clump together and settle out of the water, unless proper coagulation and flocculation is used. There are two modes of particle-particle … Dirt particles in the water then stick together or coagulate and continue to stick together until heavy particles are formed. If you continue browsing the site, you agree to the use of cookies on this website. 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 The Adobe Flash plugin is needed to view this content. Source: Coagulation and Flocculation of Wastewater in Textile Industry using … Flocculation Prismita Nursetyowati. Types of Water Treatment Processes Coagulation or Flocculation In this process, liquid aluminum sulphate or polymer is added to water. Many are downloadable. Large, heavy particles settle out readily, but smaller and lighter particles settle very slowly or in some cases do not settle at all. Share yours for free! FLOCCULATION Depends on: choice of additive, dosage, and conditions for floc formation. If you continue browsing the site, you agree to the use of cookies on this website. 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). Get the plugin now. Looks like you’ve clipped this slide to already. 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. These heavy dirt particles are called flocs. View 6 Coagulation_Flocculation (1).ppt from CIVIL GI EN at NED Univ. Coagulation and Flocculation The Figure 8.4 shows the interparticulate forces acting on a colloidal particle. Get ideas for your own presentations. 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. L-17 Coagulation and Flocculation Part-I Process Description Coagulation is a chemical process and flocculation is a physical process, In coagulation, the process involves the utilization of a coagulant that has the ability to destabilize the charged particles which are not settleable whilst flocculation involves a similar destabilization process that is achieved through … Coagulation and flocculation are two processes commonly used in water treatment in order to get rid of unwanted suspended material in water. View Coagulation Flocculation. 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. Remove this presentation Flag as Inappropriate I Don't Like This I like this Remember as a Favorite. Environmental Engineering-I (Water Supply Engg.) Clipping is a handy way to collect important slides you want to go back to later. 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. Material for this article was largely taken from reference1.Coagulation and flocculation are essential processes in various disciplines. LOKESH SAINI 5/3/2012 An operator cannot just set a dose and “hope” everything works out. Many water treatment plants use a combination of coagulation, sedimentation, filtration and disinfection to provide clean, safe drinking water to the public. It involves the reduction of surface charges responsible for particle repulsions. You can change your ad preferences anytime. Effective agents: Mineral colloids and polyelectrolytes. Coagulation and. Slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. However, they can be commonly adopted for de-stabilizing any suspension system. Slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. • The final step is flocculation. 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. PPTs online, safely and virus-free! During flocculation, a process of gentle mixing brings the fine particles formed by coagulation into contact with each … Overview of coagulation and flocculation 1 1.1. 3/31/2016 1. Flocculation Rapid mix (coagulation ) is followed by flocculation where there is slow, enhanced contact between destabilized (coagulated) particles. Coagulation: Coagulation is the step where colloidal par ticles (similar t o spheres of a diameter of less than 1 micrometer) are destabilized. If coagulation is incomplete, flocculation step will be … 04/27/16 water treatment 36 37. If you continue browsing the site, you agree to the use of cookies on this website. 5/3/2012. Overview of Zeta Potential Concept, Measurement Use, and Applications, No public clipboards found for this slide. Coagulation … J(Hans) van Leeuwen. This article provides an overview of the processes and looks at the latest thinking. Environmental Engineering-I. Actions. 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. Looks like you’ve clipped this slide to already. See our User Agreement and Privacy Policy. 1.1.1. M.Tech-I´st Semester Learn new and interesting things. Flocculation: The process of agglomeration of the destabilized particles to such a size that separation by sedimentation and filtration is possible. The net resultant force is attractive out of the distance x. Flocculation basins are used to promote growth of the destabilized floc by promoting particle-particle contact. If you continue browsing the site, you agree to the use of cookies on this website. 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. In potable water treatment, clarification of water using coagulating agents has bee… 3/31/2016 2 Why coagulation and flocculation? The coagulation and flocculation process requires a great amount of attention to detail along the way. This reduction in charge causes flocculation … Student ID 2015PCE5271 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. Coagulation Flocculation - Free download as Powerpoint Presentation (.ppt), PDF File (.pdf), Text File (.txt) or view presentation slides online. In flocculation one can make a distinction between … Together until heavy particles are formed to later water supply system - coagulation and flocculation this! Until heavy particles are formed SAINI M.Tech-I´st Semester Student ID 2015PCE5271 3/31/2016 1 not be removed by. 37 slide 13 of 27 38 - water supply system - coagulation and flocculation are an part. 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