Factors Affecting the Performance of Primary Treatment in Onsite Systems.
- 1st ed.
- 1 online resource (112 pages)
- WERF Research Report Series .
- WERF Research Report Series .
Cover -- Copyright -- Acknowledgments -- Dedication -- Abstract and Benefits -- Table of Contents -- List of Tables -- List of Figures -- List of Acronyms -- Executive Summary -- Background -- Primary Unit Objectives -- Biological Model of Septic Tank Function -- Modern History and Evolution of Primary Treatment Units -- Sedimentation Theory and its Relevance to Tank Design -- Alternate Septic Tank Designs -- Meander and Closed-Conduit, Laminar Flow Tanks -- UASB-Septic Tanks and Baffled Anaerobic Reactors -- Imhoff Tanks -- Septic Tank Treatment Efficacy -- Objectives -- Nutrients -- Other Wastewater Constituents -- Wastewater Source and Characteristics -- Facility Type -- Cluster Systems and Collection System Type -- Source Separation -- Septic Tank Design Characteristics -- Sizing -- Hydraulic Design and Characterization -- Geometry -- Compartmentation -- Septic Tank Inlet, Outlet, and Appurtenances -- Food Service Facilities and Grease Trap Design -- Seasonal/Temperature Effects on Biology -- Sludge/Scum Accumulation and Removal -- Use of Additives -- Water Softeners -- Garbage Grinders -- Inspection, Operation and Maintenance -- Performance Monitoring and Troubleshooting -- Sampling -- Venting -- Tank Construction and Installation -- Existing Tank Standards -- State Regulations -- Industry Standards -- Research Recommendations -- Types of Studies -- Common Study Design Limitations -- Existing Data -- Conclusions -- Additional Resources -- Glossary -- References -- Appendix A: Existing Tank Standards -- Appendix B: History/Evolution of Primary Treatment Units in Decentralized Systems.
9781780403700
Septic tanks -- United States. Sewage -- Purification -- United States.