Download or read book Reports on Water Service Roads and the City County Engineering Advisory Committee written by Contra Costa County (Calif.). Public Works Department and published by . This book was released on 1957 with total page 194 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Minutes of the County Council and Reports and Minutes of Committees of the Council and Other Documents Submitted to the Council written by Lanarkshire (Scotland). County Council and published by . This book was released on 1964 with total page 1382 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Drainage Basin Committees Reports written by United States. National Resources Committee. Water Resources Committee and published by . This book was released on 1937 with total page 882 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Report of Advisory Water Committee written by San Francisco (Calif.). Advisory Water Committee and published by . This book was released on 1914 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Municipal Engineering and the Sanitary Record written by and published by . This book was released on 1920 with total page 588 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Building and Engineering News written by and published by . This book was released on 1915 with total page 840 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Journal of Proceedings Board of Supervisors City and County of San Francisco written by San Francisco (Calif.). Board of Supervisors and published by . This book was released on 1914 with total page 816 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book San Francisco Municipal Record written by and published by . This book was released on 1914 with total page 460 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Navigating the TMDL Process written by Paul L. Freedman and published by IWA Publishing. This book was released on 2003-12-01 with total page 116 pages. Available in PDF, EPUB and Kindle. Book excerpt: Narrative water quality criteria are an integral component of States water quality standards but they pose special problems when incorporated into the TMDL process. The TMDL process is typically a quantitative activity, defining numeric allowable loads necessary to meet a numeric water quality objective. Narrative criteria confound development of quantitative TMDLs, due to the absence of these numeric criteria. The objective of this research was to improve the methods for addressing narrative water quality criteria in the TMDL process. The problems associated with narrative criteria in the TMDL process are known in general terms but, prior to this research, there has not been a thorough review of the use of narrative criteria in TMDLs nor broad guidance on how to address narrative criteria in the TMDL process. The approach taken for this research was to define the range of problems associated with all types of narrative criteria by means of a comprehensive review of 120 narrative TMDLs, and provide guiding principles to help address these problems.
Download or read book Hearings written by United States. Congress. House and published by . This book was released on 1959 with total page 2152 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Municipal Record written by and published by . This book was released on 1914 with total page 474 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Ultrasonic Destruction of Surfactants written by L. Weavers and published by IWA Publishing. This book was released on 2003-12-01 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt: This research focused on the use of sonication to destroy surfactants and surface tension properties in industrial wastewaters that affect traditional water treatment processes. We have investigated the sonochemical destruction of surfactants and a chelating agent to understand the release of metals from surfactants during sonication. In addition, the effects of physical properties of surfactants and the effect of ultrasonic frequency were investigated to gain an understanding of the factors affecting degradation. Successful partial or total destruction of surfactants resulting in the release of metals bound to surfactants may result in a significant cost savings of treatment plants.
Download or read book Use of Enhanced Biological Phosphorus Removal for Treating Nutrient Deficient Wastewater written by W. F. Harper Jr and published by IWA Publishing. This book was released on 2004-01-01 with total page 132 pages. Available in PDF, EPUB and Kindle. Book excerpt: Anaerobic/aerobic (AnA) and completely aerobic (CA) laboratory-scale sequencing batch reactors operating on an acetate- and casamino acids-based synthetic wastewater were used to investigate the suitability of the AnA process for treating nutrient?deficient wastewaters in plants that have stringent effluent nutrient requirements. Of particular interest is the case where phosphorus (P)-deficient wastewaters with highly variable influent COD loading are being treated to meet both effluent TSS and P limits. At a 4 d mean cell residence time, AnA activated sludge had an approx. 20% lower P requirement than CA activated sludge. The difference between the end-of-aerobic cycle polyhydroxyalkanoate and carbohydrate contents of the sludges indicated that the AnAsludge used more influent carbon than the CA sludge for synthesis of non-P-containing storage products. The nitrogen requirements of AnA sludge were similar to those of the CA sludge. The AnA and CA SBRs were subjected to three different transient influent COD loading patterns that simulated (#1) daily COD Loading fluctuations, (#2) low weekend COD loading, and (#3) extended low COD loading periods. During the Loading Pattern #1 experiment, the average effluent soluble P concentrations for the AnA and CA SBRs were 0.4 and 1.0 mgP/L respectively, and complete removal of influent acetate was observed. During the Loading Pattern #2 experiment, the average effluent soluble P concentrations for the AnA and CA SBRs were 0.3 and 0.9 mgP/L respectively, but effluent acetate was detected during the first high COD loading cycle following the low weekend COD loading period. During the Loading Pattern #3 experiment, the VSS content of both reactors dropped sharply, effluent acetate breakthrough occurred, and effluent P concentrations exceeding 1 mgP/L were detected in both the AnA and CA SBRs. Based on these findings, the AnA process has potential as a technologically and economically superior alternative for wastewater treatment plants treating P-deficient wastewasters to meet stringent effluent TSS and P limits. This publication can also be purchased and downloaded via Pay Per View on Water Intelligence Online - click on the Pay Per View icon below
Download or read book Protocols to Assess the Breakdown of Flushable Consumer Products written by Drew C. McAvoy and published by IWA Publishing. This book was released on 2003-07-31 with total page 136 pages. Available in PDF, EPUB and Kindle. Book excerpt: A scientifically sound approach is needed to ensure that flushable consumer products are compatible with household plumbing fixtures, as well as wastewater collection and treatment systems. In addition to assessing disposal system compatibility, an assessment approach should also ensure that flushable consumer products do not become an aesthetic nuisance in surface waters and soil environments. This document presents an overall approach for assessing the fate and compatibility of consumer products in wastewater disposal systems. While the focus of this document is on the United States, it is believed that the conceptual approach and many of the test methods could be used to assess the compatibility of flushable consumer products in wastewater disposal systems throughout the world.
Download or read book The U S Environmental Protection Agency s Public Advisory Committees written by United States. Environmental Protection Agency and published by . This book was released on 1972 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Municipal Journal written by and published by . This book was released on 1918 with total page 560 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Municipal Journal and Public Works written by and published by . This book was released on 1918 with total page 646 pages. Available in PDF, EPUB and Kindle. Book excerpt:
