In such cases both true color and apparent color should be determined. In some highly colored industrial wastewaters color is contributed principally by colloidal or suspended material. Apparent color is determined on the original sample without filtration or centrifugation. The term “apparent color” includes not only color due to substances in solution, but also that due to suspended matter. The term “color” is used here to mean true color, that is, the color of water from which turbidity has been removed.
Colored industrial wastewaters may require color removal before discharge into watercourses. Color is removed to make a water suitable for general and industrial applications.
IntroductionĬolor in water may result from the presence of natural metallic ions (iron and manganese), humus and peat materials, plankton, weeds, and industrial wastes. Printing: Victor Graphics, Inc., Baltimore, Marylandīinding: American Trade Bindery, Baltimore, MarylandĬover Design: DR Pollard and Associates, Inc., Arlington, Virginia iii 2120 COLOR * 2120 A. Printed and bound in the United States of America.Ĭomposition: EPS Group, Inc., Hanover, Maryland Standard methods for the examination of water and wastewater. The Library of Congress has catalogued this work as follows: No part of this publication may be reproduced, graphically or electronically, including entering in storage or retrieval systems, without the prior written permission of the publishers. Lwoffii and Bacillus thuringiensis respectively.Copyright © 1917, 1920, 1923, and 1925 byĪll rights reserved. Gene sequencing and phylogenetic analysis as Pantoea agglomerans, Acinetobacter Before being recommendedįor future work, the three isolates were fully characterized and identified employing culture-dependent techniques such as APIĢ0E, API 20NE and API 50CHB, and further confirmed by partial 16S rRNA Potentials with remarkably fast reaction rates. The results strongly indicated that all three To degrade n-Hexadecane, phenol and phenanthrene, representing the major types Isolates were tested separately in Bushnell-Haas (BH) media for their capabilities Were selected for their efficient COD removal and active growth. Most potent isolates named BDCC-TUSA-8, BDCC-TUSA-12 and BDCC-TUSA-18 Present in refinery wastewater was evidenced by changes in both total viable counts (TVC) and COD content of cultivation Efficiency of biodegradation on complex mixture of hydrocarbons
Nutritionally optimized refinery wastewater (NORWW) and over twelve successive Wastewater plant, Jeddah, KSA, by means of selective enrichment in Aminīiodegradation, Consortium, Multiple Degradation Potentials, Acinetobacter, Bacillus, PantoeaĪBSTRACT: In the present study, 23 isolates, dominated byīacterial genera (74%) were isolated from petroleum sludge at refinery Locally Isolated Bacterial Strains with Multiple Degradation Potential Capabilities on Petroleum Hydrocarbon PollutantsĪUTHORS: A. 21st Edition, American Public Health Association/American Water Works Association/Water Environment Federation, Washington DC. APHA (2005) Standard Methods for the Examination of Water and Wastewater.
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