Search filters Loading eBooks Sort by: Date added (new to old)Date added (old to new)Print date (new to old)Print date (old to new)Title (A-Z)Title (Z-A)Author (A-Z)Author (Z-A) 1 - 12 of 20592 titles12345678910Previous | Next Thickening 101Thickening is commonly used for concentrating solid streams at a water resource recovery facility (WRRF). Thickening removes excess water from the solids, which reduces the size and scale of downstream processes. Typically, the water removed from the solids during thickening is recycled to the headworks of the WRRF.The ease with which different types of solids (e.g., primary solids, waste activated sludge [WAS]) can be thickened varies widely. Much of the variability in thickening performance results from the site-specific characteristics of the solids themselves. These characteristics depend on the process used to treat the wastewater before thickening, the way in which water is bonded to the solid particles and/or flocs, and the concentration of extracellular polymeric substances as well as mono and divalent cations present in wastewater. Solids concentration is typically monitored using total suspended solids and total solids. The degree of solids concentration achieved through thickening processes also depends on solids conditioning with polymer, which can be affected by the above-mentioned factors in addition to solids temperature, pH, volatile and suspended solids concentration, and solids/polymer mixing type and intensity. This Thickening 101 Fact Sheet dives into the questions of why to thicken solids, where to thicken solids, how solids are thickened and what technologies are used to thicken solids.Author(s)Water Environment FederationContributing authorsKatherine BezekJosé R. BicudoSourceResiduals and Biosolids (RBC) Solids Separation SubcommitteeDocument typeFact SheetPublisherWater Environment FederationVolume / Issue First / last page(s)1 - 13Copyright2022Word count3Subject keywordsThickeningPrimary SolidsSecondary SolidsCo-ThickeningRecuperative ThickeningGravity ThickeningFlotation ThickeningFiltration ThickeningCentrigugesDAFTDissolved Air Flotation ThickenersPrimary ClarifiersDisc ThickenersGravity Belt ThickenersScrew PressesRotary Drum ThickenersMembrane ThickenersSolids Thickening Read Summary Report for Pilot Program for Onsite Testing of SARS-CoV-2 in Correctional Facility WastewaterThe COVID pandemic highlighted the value of wastewater-based surveillance (WBS) for complementing clinical testing data and providing a more complete picture of COVID infection levels and trends in a population. Most WBS participants send samples to offsite laboratories for analysis. For remote communities and institutions—such as correctional facilities (CFs)— sample shipment can...Author(s)Water Environment FederationSourceWEF's wastewater surveillance program team in collaboration with CDC and numerous state agency partnersDocument typeTechnical ReportPublisherWater Environment FederationPrint publication date Oct, 2022Volume / Issue First / last page(s)1 - 69Copyright2022Word count192Subject keywordsCOVIDWastewater-based surveillanceCorrectional facilitiesSmall Communities and Decentralized SystemsDisaster Planning and RecoveryResiliencyUtility ManagementLeadershipEMS Read Pumps -- What Every Operator Needs to KnowWE&T’s Operator Essentials column presents easily accessible and digestible fundamental information. It is intended to share “what every operator should know” about each topic covered. The column is arranged as a grid of knowledge, principles, and practical considerations — each successive column provides more detailed information.Author(s)Joe FosterSourcePlant Operations and Maintenance Committee; WE&T MagazineCommitteePlant Operations and Maintenance CommitteeDocument typeMagazine articlePublisherWater Environment FederationPrint publication date Jun, 2022ISSN1044-9493Volume / Issue34 / 6Content sourceWE&T MagazineFirst / last page(s)50 - 52Copyright2022Word count640Subject keywordsOperator Essentialsoperationsoperatorpumps Purchase the entire book for $5.50 (640 words) Add to cart Design of Wastewater and Stormwater Pumping Stations MOP FD-4, 3rd EditionThis Manual of Practice presents current design considerations for wastewater and stormwater pumping stations. It covers station capacity requirements and configuration, the selection and design of pumping equipment, piping system layout and hydraulic considerations, electrical and instrumentation systems design, and other station appurtenances. Intended for design professionals, it addresses design of stations of all sizes and highlights the differences between wastewater and stormwater stations.Author(s)Water Environment FederationDocument typeDigital BookPublisherWater Environment FederationPrint publication date Nov, 2022Print ISBN 978-1-57278-436-9EISBN 9781572784369Volume / Issue1 / 1First / last page(s)1 - 326Copyright2022Word count93,033Subject keywordswastewaterstormwaterpumpshydraulicsdesigninstrumentationpipingequipment designpiping systemswastewater designstormwater pumping Purchase the entire book for $169.99 (93,033 words) Add to cart Smart Water Basics and Applying Data Analytics -- What Every Operator Needs to KnowWE&T’s Operator Essentials column presents easily accessible and digestible fundamental information. It is intended to share “what every operator should know” about each topic covered. The column is arranged as a grid of knowledge, principles, and practical considerations — each successive column provides more detailed information.Author(s)Prabhu ChandrasekeranSourcePlant Operations and Maintenance Committee; WE&T MagazineCommitteePlant Operations and Maintenance CommitteeDocument typeMagazine articlePublisherWater Environment FederationPrint publication date Oct, 2022ISSN1044-9493Volume / Issue34 / 10Content sourceWE&T MagazineFirst / last page(s)46 - 49Copyright2022Word count1,614Subject keywordsOperator Essentialsoperationsoperatorsmart waterdata analytics Purchase the entire book for $5.50 (1,614 words) Add to cart Financing Capital Projects -- What Every Operator Needs to KnowWE&T’s Operator Essentials column presents easily accessible and digestible fundamental information. It is intended to share “what every operator should know” about each topic covered. The column is arranged as a grid of knowledge, principles, and practical considerations — each successive column provides more detailed information.Author(s)Mike KyleSourcePlant Operations and Maintenance Committee; WE&T MagazineCommitteePlant Operations and Maintenance CommitteeDocument typeMagazine articlePublisherWater Environment FederationPrint publication date Sep, 2022ISSN1044-9493Volume / Issue34 / 9Content sourceWE&T MagazineFirst / last page(s)74 - 76Copyright2022Word count1,335Subject keywordsOperator Essentialsoperationsoperatorfinancingcapital projects Purchase the entire book for $5.50 (1,335 words) Add to cart Sanitary Sewer Trenchless Rehabilitation -- What Every Operator Needs to KnowWE&T’s Operator Essentials column presents easily accessible and digestible fundamental information. It is intended to share “what every operator should know” about each topic covered. The column is arranged as a grid of knowledge, principles, and practical considerations — each successive column provides more detailed information.Author(s)Joanie HawleySourcePlant Operations and Maintenance Committee; WE&T MagazineCommitteePlant Operations and Maintenance CommitteeDocument typeMagazine articlePublisherWater Environment FederationPrint publication date Jul, 2022ISSN1044-9493Volume / Issue34 / 7Content sourceWE&T MagazineFirst / last page(s)46 - 49Copyright2022Word count1,900Subject keywordsOperator Essentialsoperationsoperatorsanitary sewerpipe rehabilitationtrenchless Purchase the entire book for $5.50 (1,900 words) Add to cart PFAS -- What Every Operator Needs to KnowWE&T’s Operator Essentials column presents easily accessible and digestible fundamental information. It is intended to share “what every operator should know” about each topic covered. The column is arranged as a grid of knowledge, principles, and practical considerations — each successive column provides more detailed information.Author(s)Viraj deSilvaSourcePlant Operations and Maintenance Committee; WE&T MagazineCommitteePlant Operations and Maintenance CommitteeDocument typeMagazine articlePublisherWater Environment FederationPrint publication date Nov, 2022ISSN1044-9493Volume / Issue34 / 11Content sourceWE&T MagazineFirst / last page(s)42 - 44Copyright2022Word count978Subject keywordsOperator EssentialsoperationsoperatorPFAS Purchase the entire book for $5.50 (978 words) Add to cart Water Reuse -- What Every Operator Needs to KnowWE&T’s Operator Essentials column presents easily accessible and digestible fundamental information. It is intended to share “what every operator should know” about each topic covered. The column is arranged as a grid of knowledge, principles, and practical considerations — each successive column provides more detailed information.Author(s)Vijay SundaramSourcePlant Operations and Maintenance Committee; WE&T MagazineCommitteePlant Operations and Maintenance CommitteeDocument typeMagazine articlePublisherWater Environment FederationPrint publication date May, 2022ISSN1044-9493Volume / Issue34 / 5Content sourceWE&T MagazineFirst / last page(s)58 - 61Copyright2022Word count1,152Subject keywordsOperator Essentialsoperationsoperatorwater reusereuse Purchase the entire book for $5.50 (1,152 words) Add to cart Submersible Level Transmitters -- Maintenance EssentialsWE&T’s Operator Essentials column presents easily accessible and digestible fundamental information. It is intended to share “what every operator should know” about each topic covered. The column is arranged as a grid of knowledge, principles, and practical considerations — each successive column provides more detailed information.Author(s)John WadleySourcePlant Operations and Maintenance Committee; WE&T MagazineCommitteePlant Operations and Maintenance CommitteeDocument typeMagazine articlePublisherWater Environment FederationPrint publication date Jun, 2022ISSN1044-9493Volume / Issue34 / 6Content sourceWE&T MagazineFirst / last page(s)64 - 64Copyright2022Word count325Subject keywordsMaintenance Essentialsmaintenanceoperationsoperatorsubmersible level transmitters Purchase the entire book for $5.50 (325 words) Add to cart Gas Chlorination -- What Every Operator Needs to KnowWE&T’s Operator Essentials column presents easily accessible and digestible fundamental information. It is intended to share “what every operator should know” about each topic covered. The column is arranged as a grid of knowledge, principles, and practical considerations — each successive column provides more detailed information.Author(s)Stanley ShmiaSourcePlant Operations and Maintenance Committee; WE&T MagazineCommitteePlant Operations and Maintenance CommitteeDocument typeMagazine articlePublisherWater Environment FederationPrint publication date Aug, 2022ISSN1044-9493Volume / Issue34 / 8Content sourceWE&T MagazineFirst / last page(s)60 - 61Copyright2022Word count1,071Subject keywordsOperator Essentialsoperationsoperatorgas chlorination Purchase the entire book for $5.50 (1,071 words) Add to cart Lubricant Oil Sampling -- Maintenance EssentialsWE&T’s Operator Essentials column presents easily accessible and digestible fundamental information. It is intended to share “what every operator should know” about each topic covered. The column is arranged as a grid of knowledge, principles, and practical considerations — each successive column provides more detailed information.Author(s)Ramin SafikhaniSourcePlant Operations and Maintenance Committee; WE&T MagazineCommitteePlant Operations and Maintenance CommitteeDocument typeMagazine articlePublisherWater Environment FederationPrint publication date Oct, 2022ISSN1044-9493Volume / Issue34 / 10Content sourceWE&T MagazineFirst / last page(s)64 - 64Copyright2022Word count230Subject keywordsMaintenance Essentialsmaintenanceoperationsoperatorlubricant oil sampling Purchase the entire book for $5.50 (230 words) Add to cart