Coagulation and flocculation ppt Filtration cannot occur without proper coagulation and flocculation. 2 The document discusses coagulation and flocculation processes in water treatment. Laboratory Techniques For Flocculation Testing PPT Presentation ST AI SS Deliver an outstanding presentation on the topic using this Laboratory Techniques For Flocculation Testing PPT Presentation ST AI SS. 01 Silt 8. 7 Flocculation 5. This allows the particles to agglomerate into larger flocs during flocculation. 6 m/min 0. A jar test was conducted to evaluate the effectiveness of chemical coagulation and flocculation in removing suspended solids from water. 0001 (10 micron) Large colloids 0. Figure 1 4 1: Image of water treatment by the EPA is in the public domain Jul 22, 2014 · Flocculation. Aug 14, 2014 · Coagulation and Flocculation in Water Treatment. 000001 (1 nano) Small colloids 3 m/million yr G r a v I t y s e t t l I n g Colloids - Impart color and turbidity to water Coagulation -flocculation is a chemical water treatment technique typically applied prior to sedimentation and filtration (e. 3 Theory of coagulation Coagulation is a water treatment process that causes very small suspended particles to attract to one another and form larger particles. - Filtration passes The document discusses coagulation and flocculation processes used in water treatment. View 6 Coagulation_Flocculation (1). Week 3 Objectives . Careful control of mixing is needed to build up floc size without shredding. 33k Views Download Presentation cassandra + Follow Sep 16, 2014 · 第 九 章 化学混凝 Coagulation and Flocculation. The repulsive forces are due to the electrostatic ZP The attractive forces are due to van der Waals forces acting between the particles. The document discusses coagulation and flocculation processes in water treatment, focusing on the removal of colloidal substances to improve water quality for health and aesthetics. It explains that coagulation uses chemicals like aluminum and iron salts to destabilize colloidal particles in water by neutralizing their negative charges. It covers the working principle, types of flocculators (mechanical and hydraulic), key design steps, and factors affecting flocculation efficiency. Their objective is to enhance the separation of particulate species in downstream processes such as sedimentation and filtration. Coagulation and flocculation are key water treatment processes used to remove colloidal particles and microbes from water. Various mixers like paddles and Flocculation is a downstream processing technique used to aggregate microorganisms or particles into larger clusters to facilitate separation. Coagulation and flocculation are key water treatment processes used to remove colloidal and suspended particles from water. The document outlines the various stages of the water treatment process, including screening, aeration, sedimentation (both plain and with coagulation), filtration, disinfection, and softening. This allows particles to agglomerate into larger flocs during flocculation. Given sufficient time, a floc-size distribution reaches steady state that reflects the balance between coagulation and fragmentation. 3 m/yr 0. The need to clarify water Aesthetics and health Colloids – impart color and turbidity to water – aesthetical acceptability Microbes are colloids too. pptx), PDF File (. Methods to Destabilize Colloids ( Coagulation Processes): 1. It outlines different types of coagulants, their chemical properties, advantages, and disadvantages, as well as the flocculation mechanism that enhances particle aggregation. General test for flocculation Good starting point for Gravity Drainage or Chopper Test dosage curves Procedure: Add polymer to untreated sludge and mix Equipment and supplies: Untreated sludge 400 or 500 mL beakers Made-down polymer solutions Syringes Jan 9, 2025 · Learn about coagulation and flocculation in water treatment, the processes that remove colloidal substances to meet potable water requirements. Coagulation involves adding chemicals like aluminum sulfate or ferric chloride to destabilize colloidal particles and reduce charges. Coagulation involves adding chemicals (coagulants) to destabilize particles, while flocculation allows these destabilized particles to clump together into larger, settleable flocs. Jar tests are used to determine the optimum pH and coagulant dose Flocculation is the agglomeration of destabilized particles into a large size particles known as flocs which can be effectively removed by sedimentation or flotation. Additionally, it covers the importance of floc formation Are dependent on coagulation, flocculation, (sedimentation) and filtration techniques to meet drinking water standards Are subject to Enhanced Surface Water Treatment Rule requirements for Cryptosporidium removals VAN LEEUWEN 2011 Coagulation and Flocculation - Free download as Powerpoint Presentation (. ppt from CIVIL GI EN at NED Univ. Common coagulants used are aluminum sulfate, ferric chloride, and polyaluminum chloride. The floc will gain in size during the second step of flocculation. Coagulation is a process used to neutralise charges and form a gelatinous mass to trap (or bridge) particles thus forming a mass large enough to settle or be trapped in the 1. Flocculation is a crucial process in water treatment and various industrial applications, where fine particles aggregate into larger clusters for easier removal. INTRODUCTION Coagulation and flocculation constitute the backbone processes in most water and advanced wastewater treatment plants. Flocculation is the process where these destabilized particles come Apr 5, 2019 · Flocculation and its applications in water treatment Typical layout of a water treatment plant water treatment 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 water treatment Coagulation and Flocculation - Free download as Powerpoint Presentation (. It discusses: 1. Flocculation is the process where the destabilized particles collide Jan 7, 2025 · Learn about suspended solids, colloids, zeta potential, and the process of coagulation and flocculation for efficient water treatment. It outlines the principles, types of settling, factors affecting sedimentation, and design parameters for sedimentation tanks, emphasizing the importance of detention time, flow velocity, and tank dimensions. Definitions. Because of a complex interdependence of numerous factors inherent in the coagulation and flocculation processes, a thorough understanding of the phenomena involved is essential. . A population balance model presented describes simultaneous coagulation and fragmentation during shear-iaduced flocculation. 6 m/d 0. Sedimentation involves the removal of suspended particles from water by gravitational settling. Common This presentation summarizes coagulation and flocculation techniques used in water treatment. The document provides a detailed overview of coagulation and flocculation processes in water treatment, emphasizing their role in removing turbidity caused by suspended particles. Together, coagulation and flocculation are used to remove particulate matter, microorganisms, metals, and other contaminants from drinking water. The document covers the principles and processes of coagulation and flocculation in water treatment, focusing on their mechanisms, types of coagulants, and the design of flocculators. It outlines the mechanisms by which coagulants destabilize colloids and facilitate floc formation, as well as the various types of coagulants and flocculants Coagulation and flocculation are crucial processes in water and wastewater treatment used to remove suspended and dissolved impurities. rapid sand filtration) to enhance the ability of a treatment process to remove particles. Overview. It details the methods and machinery used in each step, such as different types of filters, coagulants like alum, and ion exchange in softening processes. Factors like particle size, shape, density affect sedimentation. The net resultant force is attractive out of the distance x. 3. It involves the addition of flocculating agents like polymers or multivalent metal salts which use ionic or hydrogen bonding to bridge between particles, forming flocs. The The efficiency of the flocculation process is largely determined by the number of collisions between the minute coagulated particles per unit of time. COAGULATION & FLOCCULATION. What is Flocculation?. It describes how coagulation uses chemicals like aluminum sulfate and ferric chloride to neutralize negatively charged colloids in water. Additionally Oct 1, 2011 · Coagulation and Flocculation in Water Treatment. This allows the particles to agglomerate during flocculation, which is induced by slow mixing. It discusses the interactions between colloids, the destabilization process, and various coagulants like aluminum sulfate and ferrous sulfate with their respective advantages and disadvantages. Additionally, it Why coagulation and Flocculation is needed? Various sizes of particles in raw water Particle diameter Type Settling velocity mm 10 Pebble 0. It also details the jar test method for determining optimum coagulant doses, while highlighting The coagulation process occurs in basins containing chambers for inlet, coagulant feeding and mixing, flocculation, sludge removal, and clear water collection. Coagulation involves adding chemicals like aluminum sulfate or ferric chloride to destabilize colloids with negative surface charges. Coagulation involves adding positively charged chemicals to destabilize negatively charged particles in water by neutralizing their charge. pdf), Text File (. Flocculation then occurs, where the destabilized particles collide and form larger flocs that are more easily removed by sedimentation or filtration. The jar test involved adding different doses of coagulants to water samples, rapidly mixing to dissolve the coagulant, slowly mixing to allow floc formation, and measuring the clarity of the settled water. ppt / . Coagulation and flocculation are water treatment processes used to remove suspended solid particles from water. 4 shows the interparticulate forces acting on a colloidal particle. coming together (coagulation) to become heavy enough to gravity settle. Initial studies were done on the synthetic waste water to determine the Dec 11, 2012 · CE 370. Flocculation follows coagulation in the conventional system and is the physical process of slowly mixing the coagulated water to increase the probability of particle collision. Introduction. Explore the roles of various coagulants and aids in destabilizing and aggregating particles to improve water quality. Flocculation definition and time and length scales Types of flocculators Mechanical Design Fractal Flocculation Theory applied to hydraulic flocculators CFD analysis of hydraulic flocculators Flocculator Design. 一、混凝的作用 废水中的大颗粒可以通过重力沉淀法去除，但微小粒径的悬浮物和胶体能在水中长期保持分散悬浮状态，即使静置数十个小时也不会自然沉降。 混凝所处理的 对象 ，主要是水和废水中的 微小悬浮物和胶体杂质 The document discusses various processes involved in water treatment, including coagulation, flocculation, and filtration. ppt, Subject Philosophy, from Alberta Distance Learning Centre, Length: 39 pages, Preview: Coagulation and F locculation M S/M . Additionally, it highlights Aug 4, 2012 · Coagulation and Flocculation at Water Treatment Plants. WQT 131 Water Works Operation III Water Treatment Chapter 4 Coagulation and Flocculation Lecture 3. J(Hans) van Leeuwen. Jar tests are used to determine the optimum pH and coagulant dose ÐÏ à¡± á> þÿ 6 8 þÿÿÿA B C D E F G H I J K L M N O P Q R 7 Coagulation found in: 0814 process of blood coagulation medical images for powerpoint, Coagulation Factor Structure In Powerpoint And Google Slides Cpb, Fibrinogen Function Blood Coagulation In Powerpoint And Google Slides Cpb,. Sedimentation allows flocs to settle out of solution by gravity in tanks with distinct zones. Flocculation then aggregates these micro-flocs into larger macro-flocs that are easier to remove by settling. 73 m/s 1 Course sand 0. Dec 29, 2024 · Dive into the theory, characteristics, and techniques of coagulation and flocculation for water treatment processes. The document discusses the processes of coagulation and flocculation in wastewater treatment, emphasizing their importance in removing colloidal substances to meet potable water requirements. Flocculation is the process where these destabilized particles agglomerate into larger floc particles that can be removed through sedimentation or flotation. Flocculation involves the addition of chemicals to destabilize particles and cause them to cluster together into larger flocs. It outlines the mechanisms of coagulation, the types of coagulants used, and methods like jar tests to determine optimal conditions for effective treatment. 5. of Engineering & Tech. Coagulation aim * water treatment * * water treatment * Why coagulation and flocculation? Mar 15, 2025 · Document Coagulation_and_Flocculation. It provides details on each major step: - Coagulation involves adding chemicals like aluminum sulfate to destabilize particles in water and allow them to agglomerate. Nov 4, 2012 · , Coagulation , Flocculation and Sedimentation Nov 04, 2012 410 likes | 1. The rate of flocculation depends on factors like collision probability, attachment This document discusses coagulation and flocculation processes used in water treatment. Coagulation involves adding chemicals like alum to destabilize colloidal particles in water. Flocculation and Coagulation in water treatment are used to remove suspended solids through a process that destabilizes the suspended particles in water solutions. Understand the importance of jar tests in determining optimum pH and coagulant dose. Common coagulants used Flocculation and sedimentation are processes used to separate suspended solids from water. Additionally, the document discusses the Sep 19, 2014 · 第二章 水的混凝 (Coagulation and Flocculation). Jar tests are used to determine the optimum pH and coagulant dose. Coagulation and Flocculation . Canditions required for the rapid coagulation and flocculation of a suspension of clay are those for the complete precipitation and flocculation of aluminium hydroxide and those conditions include a sufficient concentration of aluminium sulphate and the correct pH range of approximately 6 to 7 in which aluminium hydroxide is insoluble. It discusses how coagulants are used to remove very fine suspended particles by neutralizing their electrical charges. This destabilizes the particles so they can agglomerate during flocculation. It begins by explaining that coagulation uses chemicals like aluminum and iron salts to neutralize the negative charges on small particles and colloids in water. 2. Overview of the Process Location in the Treatment Plant After the source water has been screened and has passed through the optional steps of pre-chlorination and aeration, it is ready for coagulation and flocculation. "Coagulation and Flocculation" Coagulation and flocculation play a dominant role in many water and wastewater schemes. Coagulation and Flocculation - Free download as Powerpoint Presentation (. Coagulation involves adding chemicals like aluminum sulfate or ferric chloride to destabilize colloidal particles in water by neutralizing their negative charges. There are four main mechanisms for destabilizing colloids - double layer compression, charge neutralization, enmeshment in a precipitate, and interparticle Apr 27, 2016 · The document discusses coagulation and flocculation processes in water treatment. The suspended particles vary considerably in source, composition charge, particle size Coagulation and flocculation are water treatment processes used to remove small particles from water. ppt), PDF File (. Shammas 1. The model agrees with experimental data for the evolution of the average floc size. 1 Fine sand 0. txt) or view presentation slides online. Flocculants Introduction To Water Treatment Flocculants PPT PowerPoint ST AI SS,Flocculation In Wastewater Treatment PPT Sample ST AI SS Nov 1, 2017 · The present study deals with the determination of physical and chemical parameters in the treatment process of waste water by flocculation and coagulation processes using natural coagulants and assessing their feasibility for water treatment by comparing the performance with each other and with a synthetic coagulant. This document provides information on sedimentation, coagulation, and flocculation processes used in water treatment. To date, pertinent current literature does not present an overall account of coagulation and Flocculation is a slower, gentler mixing process that agglomerates the destabilized particles from coagulation into larger visible flocs that can be more easily filtered out through sedimentation. Coagulation Is The addition and rapid mixing of coagulants The destabilization of colloidal and fine particles The initial aggregation of destabilized particles Flocculation Is Why coagulation and Flocculation is needed? Various sizes of particles in raw water Particle diameter Type Settling velocity mm 10 Pebble 0. 000001 (1 nano) Small colloids 3 m/million yr G r a v I t y s e t t l I n g Colloids - Impart color and turbidity to water Mar 12, 2014 · Coagulation and flocculation processes are used to separate the suspended solids portion from the water. Jar tests are used Jun 14, 2023 · This document provides information about coagulation and flocculation processes used in water treatment. 第一节 概 述. - Download as a PPTX, PDF or view online for free Feb 13, 2018 · Coagulation and Flocculation The Figure 8. The document discusses coagulation and flocculation as a water treatment process. Coagulation and Flocculation (2) - Free download as Powerpoint Presentation (. Flocculation then forms these particles into larger flocs to facilitate their removal. Flocculation is the process of agglomerating the destabilized particles into larger flocs that are easier to remove through sedimentation or flotation So they need special treatment to remove them from the aqueous phase. Phil 03/15/25 Shazia Ilyas 1 fCoagulation-F locculation All waters, especially surface waters, contain both dissolved and suspended Coagulation and flocculation - Free download as Powerpoint Presentation (. Dispense information and present a thorough explanation of Flocculation Process, Sedimentation Analysis, Coagulation Methods, Water Quality Testing, Chemical Additives, Particle Size The document discusses sedimentation as a solid-liquid separation process involving the clarification of water by separating suspended solids into sludge and supernatant. The results showed that an optimal coagulant . Beyond this point the net resultant force is repulsive. Coagulation and flocculation are essential processes used in water and wastewater treatment that involve destabilizing colloidal particles in water. 第 1 节 混凝的去除对象 第 2 节 胶体的性质 第 3 节 水的混凝机理与过程 第 4 节 The document discusses the principles and techniques of coagulation, flocculation, and settling in water treatment, focusing on the behavior of colloidal solids and the role of coagulants and flocculants in removing turbidity from water. This document discusses coagulation and flocculation processes in water treatment. The term coagulation refers to the series of chemical and mechanical operations by which coagulants are applied and made effective. This destabilization of colloids is called “coagulation”. 23 m/s 0. Reading assignment: The document discusses flocculation, a process that combines fine particles into larger flocs for effective removal through sedimentation or flotation. Sedimentation tanks come in different designs like circular, rectangular, or with a hopper bottom. The difference between the two is coagulation is the coming together, or clumping of particles, and flocculation is the settling of coagulated particles. g. Coagulation and Flocculation Dr Zuhaib Siddiqui Hamilton Water Treatment Plant Has a rated capacity of After coagulation /flocculation, gravity sedimentation, and sometimes filtration, are employed to remove the flocculated colloids. The processes involve rapid mixing of coagulants, followed by slow mixing or flocculation to form larger floc particles that are then removed by sedimentation. Various tank Nazih K. Our customizable PowerPoint presentations on flocculation provide in-depth insights, making it simple to convey complex concepts effectively. As an example it would take a 1 micron colloid 1 year to settle (by gravity) a distance of 1/3 m. Coagulation and flocculation are important water treatment processes used to remove small particles from water. The flash mix process only lasts several seconds as the coagulant rapidly mixes and reacts with the raw untreated water. The document discusses coagulation and flocculation processes used in water treatment. It outlines the mechanisms of coagulation, including charge neutralization and bridging, and discusses various coagulants such as aluminum and iron salts along with their advantages and disadvantages. sheui yvowq hftgbq xzx ajfdxb ddb otnmar jwckn yamwq grktdz jneqj hcotu ebep leow sdrauvx