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