Ebook coagulation and flocculation in water and wastewater. Coagulation and flocculation processes are used to separate the suspended solids portion from the water. Coagulation and flocculation process fundamentals 1 coagulation and flocculation. Coagulation and flocculation in water and wastewater. Zeta potential is defined and its role in coagulation described. Difference between coagulation and flocculation in water. Example problem for designing a flocculation basin. Coagulation and flocculation are wellknown techniques within wastewater treatment.
Most water treatment practices including coagulation, flocculation and clarification, date back hundreds and in some cases thousands of years. Coagulation and flocculation download coagulation and flocculation ebook pdf or read online books in pdf, epub, and mobi format. Apr 27, 2016 042716 water treatment 59 g value for coagulation. Coagulation flocculation chemistry physical sciences. Pdf coagulation, flocculation and agglutination are terms that usually cause confusion. It is a convenient reference handbook providing numerous examples and appended information and it is a vital text for course material for.
Ppt coagulation and flocculation linkedin slideshare. Standard jar test were used in screening the flocculants. Coagulation and flocculation in water and wastewater treatment provides a comprehensive account of coagulation and flocculation techniques and technologies in a single volume covering theoretical principles to practical applications. Ppt coagulation and flocculation in water treatment. Flocculation and coagulation is a chemical cleaning treatment for the waste water generally undertaken before the sedimentation process thus aiding in enhancing the process to remove particles from the water. Meanwhile, flocculation is a mixing technique that promotes agglomeration and assists in the settling of particles.
Flocculation is the agglomeration of destabilized particles into a substantial size particles known as flocs which can be successfully expelled by sedimentation or buoyancy. Coagulation and flocculation are used to separate the suspended solids portion from the water. Coagulation is an essential component in water treatment operations. Evaluation of chemical coagulationflocculation aids for the removal. Measurement tools for coagulation and flocculation. Coagulation and flocculation in water and wastewater treatment third edition start download portable document format pdf and ebooks electronic books free online rating news 20162017 is books that can provide inspiration, insight, knowledge to the reader. Invaluble for water scientists, engineers and students of this field, coagulation and flocculation in water and wastewater treatment is a convenient reference handbook in the form of numerous examples and appended information. Coagulation and flocculation free download as powerpoint presentation. Coagulation involves the use of a coagulant which has the potential to destabilize the previously stabilized charged. Location in the treatment plant after the source water has been screened and has passed through the optional steps of prechlorination and aeration, it is ready for coagulation and flocculation. Coagulation and flocculation in water and wastewater treatment.
Key difference coagulation vs flocculation in water treatment water treatment is an important aspect which involves many different steps. The importance of flash mixing and slower agitating processes in flocculation are also emphasized. The suspended particles vary considerably in source, composition charge, particle size. The purpose of the present article is to clarify and explain the. Basically, coagulation is a process of addition of coagulant to destabilize a stabilized charged particle. Flocculant and coagulant market global industry analysis. Coagulation and rapid mixing coagulation is the process by which particles become destabilized and begin to clump together.
Coagulation flocculation free download as powerpoint presentation. Coagulations and flocculation water treatment suez. Evaluation and optimization of the coagulation rapid mixing step of the water treatment process includes a variety of aspects. Flocculation is synonymous with agglomeration and coagulation coalescence. Suspended particles vary in source, charge, particle size, shape. Coagulation results from an interaction among vessel walls, platelets and coagulation factors. Pdf coagulationflocculation processes in waterwastewater. Flocculation is a physical process in which the fine solids produced by coagulation are brought together into larger particles using controlled low levels of shear.
Dec 10, 2017 key difference coagulation vs flocculation in water treatment water treatment is an important aspect which involves many different steps. Coagulation and flocculation play a dominant role in many water and wastewater treatment, schemes. Coagulation and flocculation are two processes commonly used in water treatment in order to get rid of unwanted suspended material in water. Manual of symbols and terminology for physicochemical quantities and units, appendix ii. Ppt coagulation and flocculation in water treatment powerpoint presentation free to download id. Evaluation and optimization of the coagulationrapid mixing step of the water treatment process includes a variety of aspects. The inorganic flocculants used were ferric chloride fecl 3 and aluminium sulphate al 2so 4 3 a thermodynamic model is developed for understanding the coagulation and flocculation process for inorganic flocculants.
Their objective is to enhance the separation of particulate species in downstream processes such as sedimentation and filtration. Coagulationflocculation process for produced water. Coagulation and flocculation water purification physical. Water treatment plant waste sludge disposal is dealt with in considerable detail, in an appendix devoted to this subject. Suspended particles vary in source, charge, particle size, shape, and density. Another type of tanks combine between flocculation and sedimentation in one tank and called solid contact flocculator clarifier. The coagulation and flocculation process can occur naturally in some cases or be enhanced by the addition of coagulant and flocculants aids. Download pdf coagulation and flocculation free online new. Principles of coagulation and flocculation herman 1983. Definitions, terminology and symbols in colloid and surface chemistry on page 609.
But the phenomena are also wellknown from everyday life especially coagulation. We can work with you to optimize the performance of your treatment program, including chemicals and equipment, which can dramatically minimize your overall costs and maximize return on investment. Flocculation is commonly confused with coagulation, and the terms are consequently used to some extent interchangeably but they are very different processes. Coagulation and flocculation in water and wastewater treatment provides a comprehensive account of coagulation and flocculation techniques and technologies in a single volume covering theoretical principles to practical applications thoroughly revised and updated this new edition has been progressively modified and increased in scope to cater for the requirements of practitioners involved. Scribd is the worlds largest social reading and publishing site. Coagulation, flocculation and clarification of drinking water. Flocculation is a physical process in which the fine solids produced by coagulation are brought together into. Mar 31, 2016 3312016 2 why coagulation and flocculation.
In water treatment, coagulation is the result of the addition of chemical reagents to water. This knowledge will provide a basis for understanding the needs of the. Numerous substances have been used as coagulant and flocculation. Flocculation in the papermaking system is analogous to coagulation, except that a charged polymer is used either to decrease the repulsive forces or to act with several particles at one time bridging to achieve aggregation. Various sizes of particles in raw water particle diameter mm type settling velocity 10 pebble 0. However, they can be commonly adopted for destabilizing any suspension system. Download coagulationflocculation process for produced water treatment book pdf free download link or read online here in pdf. Pdf waste water treatment by coagulation and flocculation. 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 constitute the backbone processes in most water and advanced wastewater treatment plants. Coagulation and flocculation in water and wastewater treatment is a readable and useful resource for the water scientist and engineer. Flocculation refers to the process used to bring the coagulated particles together so that they can combine to form larger, settleable, and filterable masses of particles called floc. Sep 14, 2017 example problem for designing a flocculation basin.
Click download or read online button to coagulation and flocculation book pdf for free now. May 03, 2012 coagulation and flocculation free download as powerpoint presentation. Coagulation, flocculation and clarification of drinking water terry l. This enables their removal by sedimentation, dissolved air flotation or filtration. Download pdf coagulation and flocculation free online. Suez offers a comprehensive portfolio of coagulants, flocculants and customdesigned polymers that aid the clarification process. Coagulation and flocculation part 1 overview of the process. They are typically used for treatment of wastewater containing colloids suspended particles and metal ions. Coagulation and flocculation in water treatment title. Coagulation and flocculation coagulation and flocculationconsist of adding a flocforming chemical reagent to a water to enmesh or combine with nonsettleable colloidal solids and slowsettling suspended solids to produce a rapidsettling floc. Earthen jars used to store water it is good to keep water in copper vessels, to expose it to sunlight and. From my course ees 3030, water treatment systems, in the department of environmental engineering and earth sciences at clemson university. The removal of contaminants from these effluents involves the process of flocculation and coagulation. Klaraid products are designed to function in a variety.
Groundwater and surface water contain both dissolved and suspended particles. Since water treatment is a very sensitive and important process it requires the presence of both physical and chemical processes. Pdf coagulation, flocculation, agglutination and hemaglutination. Download coagulation and flocculation ebook pdf or read online books in pdf, epub, and mobi format. Coagulation and flocculation are designed to remove infectious agents, remove toxic compounds that have adsorbed to the surface of particles, remove precursors to the formation of disinfection byproducts, and make the water palatable. Coagulation is basically a synthetic procedure water treatment. Emerson water is clarified using the processes of coagulation and flocculation, which remove suspended solids turbidity from water by causing the suspended particles to aggregate into a slime, that settles out of the water. Consider the use of cationic polymers in a suspension of wood fiber fines with negative surface charges. The floc is subsequently removed in most cases by sedimentation. Coagulationflocculation process for produced water treatment. It is a convenient reference handbook providing numerous examples and appended information and it is a vital text for course material for undergraduate and postgraduate students.