Download or read book Coagulation and Flocculation in Water and Wastewater Treatment written by John Bratby and published by IWA Publishing. This book was released on 2006-10-15 with total page 421 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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 since the 1st Edition it has been progressively modified and increased in scope to cater for the requirements of practitioners involved with water and wastewater treatment. A thorough gamut of treatment scenarios is attempted, including turbidity, color and organics removal, including the technical aspects of enhanced coagulation. The effects of temperature and ionic content are described as well as the removal of specific substances such as arsenic and phosphorus. Chemical phosphorus removal is dealt with in detail, Rapid mixing for efficient coagulant utilization, and flocculation are dealt with in specific chapters. Water treatment plant waste sludge disposal is dealt with in considerable detail, in an Appendix devoted to this subject. 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.

Download or read book Impact of Dual Alum and Polyaluminum Chloride Coagulation on Filtration written by Michael G. Haines and published by . This book was released on 2003-08-01 with total page 82 pages. Available in PDF, EPUB and Kindle. Book excerpt: The process of treating drinking water with a combination of alum and polyaluminum chloride (dual coagulant) has been performed by at least one utility along the Colorado Front Range since the early 199Os. Previous bench- scale research with water containing low concentration of natural organic matter (NOM) showed the dual treatment developed larger non- settleable floc than alum and these floc re-aggregated faster than polyaluminum chloride (PACL) or alum after experiencing induced shearing. Pilot-scale studies showed longer filter run volumes with low-NOM waters treated with dual coagulant. Full-scale testing using reservoir water with stable water quality parameters, including relatively low levels of NOM, was conducted to determine if bench-scale and pilot-scale studies were indeed indicative of full-scale performance. The coagulants were administered at typical, plantestablished doses and finished water quality was continuously monitored to ensure that the overall water quality was not sacrificed. Turbidity, filter loss of head, and filter run length were monitored during the sample periods. Total organic carbon (TOC) samples were collected and analyzed during each of the coagulant monitoring periods. Full-scale data shows that the dual treatment provided significantly longer filter run times than alum or PA% alone. However, TOC removal for alum treatments proved better than for PACL or the dual coagulant. Bench-scale experiments were conducted with high-NOM water to further the understanding of the mechanisms involved for the dual coagulants improved performance and to determine if high-NOM water treated with dual coagulant performed similarly as low-NOM water. The same three coagulant regimes as previously mentioned were examined and their optimum doses were determined based on turbidity and TOC removal. A photometric dispersion analyzer was used to study the effects of shearing.

Download or read book Coagulation and Flocculation in Water and Wastewater Treatment written by and published by . This book was released on 2008 with total page 424 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Coagulation and Flocculation written by John Bratby and published by . This book was released on 1980 with total page 354 pages. Available in PDF, EPUB and Kindle. Book excerpt: