Tag: activated sludge
When influent flows swing, permits tighten, and site footprints are constrained, sequencing batch reactors offer a compact, controllable alternative to continuous activated sludge. This guide translates SBR systems into actionable design rules, operational controls, troubleshooting workflows and retrofit strategies, with target ranges and decision criteria to compare performance against continuous basins and MBRs. Aimed at […]
Anoxic Zones in Wastewater Treatment: Nitrogen Removal Explained Article Overview Article Type: Informational Primary Goal: Explain how anoxic zone treatment removes nitrogen in municipal and industrial wastewater, covering microbial mechanisms, common process configurations, design and operational parameters, monitoring and control strategies, retrofit options, technology vendors, and real world examples so engineers and operators can design, […]
The authoritative technical resource for the Metropolitan Water Reclamation District of Greater Chicago’s primary northern facility. FACILITY BASIC INFORMATION Plant Name: Terrence J. O’Brien Water Reclamation Plant (O’Brien WRP) Location: 3500 Howard Street, Skokie, Cook County, Illinois Operating Authority: Metropolitan Water Reclamation District of Greater Chicago (MWRD) Design Average Capacity: 333 MGD Design Maximum Capacity: […]
Trickling Filter Systems: Traditional and Effective Wastewater Treatment Article Overview Article Type: Informational Primary Goal: Explain how trickling filter treatment works, when and why to specify it in modern wastewater treatment trains, provide actionable design and operational guidance, and show modernization and retrofit options for municipalities and plant engineers Who is the reader: Municipal utilities, […]
FACILITY BASIC INFORMATION Plant Name: Northside Wastewater Treatment Plant Location: 5628 N. 105th E. Ave, Tulsa, Tulsa County, Oklahoma Operating Authority: Tulsa Metropolitan Utility Authority (TMUA) / City of Tulsa Design Capacity: 42.6 MGD (Million Gallons per Day) Current Average Flow: ~28-30 MGD Population Served: Approx. 165,000 residents Service Area: North Tulsa, Owasso, Catoosa, and […]
Membrane Bioreactor Technology: Advanced Solutions for Wastewater Treatment In an era where sustainable water management is more critical than ever, membrane bioreactor (MBR) technology stands out as a game-changer in wastewater treatment. This innovative approach combines biological treatment processes with advanced membrane filtration, offering superior effluent quality and efficient nutrient removal. In this post, we'll […]
1. Introduction The oxidation ditch is a modified activated sludge biological treatment process that utilizes long solids retention times (SRTs) to remove biodegradable organics. Oxidation ditches are typically complete mix systems, but they can be modified to approach plug flow conditions. Ideally suited for small- to medium-sized municipal wastewater treatment plants, these systems are renowned […]
Introduction In the design and operation of activated sludge wastewater treatment plants, the aeration system represents the single largest consumer of energy, typically accounting for 50% to 70% of a facility’s total electrical demand. For consulting engineers and utility directors, selecting the correct aeration infrastructure is not merely a purchasing decision; it is a twenty-year […]
Modified Ludzack-Ettinger Process: Nitrogen Removal in Wastewater Treatment Fundamentals of the MLE Process The Modified Ludzack-Ettinger (MLE) process isn’t just a fancy term tossed around in wastewater treatment circles; it’s a game-changer for municipalities grappling with nitrogen removal. Picture this: a mid-sized city with a population of 100,000 is facing strict new regulations on nitrogen […]
Modern Wastewater Treatment Processes and Best Practices Overview of Current Wastewater Treatment Technologies Did you know that approximately 80% of the world's wastewater is discharged into the environment without adequate treatment? That’s like throwing a party and forgetting to clean up after yourself—except this party is a global catastrophe. Wastewater treatment has evolved significantly over […]