coagulation and flocculation ppt

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