Tag: filtration
FACILITY BASIC INFORMATION Plant Name: East Jefferson Wastewater Treatment Plant (EJEFF) Location: Metairie, Jefferson Parish, Louisiana Operating Authority: Jefferson Parish Department of Sewerage Design Capacity: 62.4 MGD (Average Daily Flow) Peak Hydraulic Capacity: >100 MGD Population Served: ~250,000 residents Service Area: East Bank of Jefferson Parish (Metairie, River Ridge, Harahan, Kenner) Receiving Water Body: Mississippi […]
Introduction In municipal and industrial wastewater treatment, volume reduction is the single most effective method for controlling downstream costs. By thickening Waste Activated Sludge (WAS) from a typical 0.5–1.0% solids concentration to 5–7%, facilities can reduce the hydraulic volume sent to digesters or holding tanks by up to 85%. However, selecting the right equipment to […]
INTRODUCTION One of the most persistent challenges in municipal and industrial treatment plant design is the “Proprietary vs. Custom” dilemma. Engineers frequently encounter this when selecting equipment for specialized unit processes—such as high-rate clarification, tertiary filtration, or anaerobic digestion auxiliaries. A surprising statistic from lifecycle audits reveals that while proprietary high-rate systems can reduce civil […]
Introduction One of the most persistent challenges in water and wastewater treatment design is the “black box” mentality regarding filtration. Engineers often focus heavily on media selection—anthracite size, sand uniformity coefficients, or GAC iodine numbers—while underestimating the critical mechanical and hydraulic interfaces that support that media. However, industry data suggests that over 70% of catastrophic […]
Introduction to Tertiary Filtration Selection For municipal and industrial engineers, the tertiary filtration stage is frequently the final safeguard between regulatory compliance and permit violations. As National Pollutant Discharge Elimination System (NPDES) permits tighten—particularly regarding total phosphorus (TP) limits of < 0.1 mg/L and strict turbidity requirements for Title 22 water reuse—the margin for error […]
INTRODUCTION One of the most persistent debates in municipal water treatment and tertiary wastewater polishing centers on the choice between proprietary membrane technologies and versatile packaged filtration systems. Engineers are frequently caught between the absolute barrier protection of ultrafiltration (UF) and the robust, forgiving nature of adsorption clarifiers or conventional multimedia filtration. This decision affects […]
Introduction One of the most frequent debates in municipal advanced treatment design centers on the selection of tertiary filtration technology. Engineers are often tasked with balancing the stringent pathogen rejection of low-pressure membranes against the energy efficiency and simplicity of depth filtration. This dichotomy is best represented by analyzing DuPont – Memcor vs Aqua-Aerobic for […]
Note to Engineers: While frequently associated with the Union County Utilities Authority (which manages solid waste), the wastewater treatment operations in this jurisdiction are managed by the Rahway Valley Sewerage Authority (RVSA). This technical document focuses on the RVSA wastewater treatment facility. FACILITY BASIC INFORMATION Plant Name: Rahway Valley Sewerage Authority (RVSA) Treatment Plant Location: […]
The Authoritative Technical Resource for Engineers and Industry Professionals FACILITY BASIC INFORMATION Plant Name: 69th Street Wastewater Treatment Plant Location: 2525 S/Sgt. Macario Garcia Drive, Houston, Harris County, Texas Operating Authority: City of Houston Public Works (Houston Water) Design Capacity: 200 MGD (Permitted Daily Average Flow) Peak 2-Hour Flow: 400 MGD Population Served: Approx. 1.2 […]
Technical Note for Engineers: This article provides a specification-level overview of Solids Dewatering Equipment for municipal and industrial applications. It focuses on engineering selection criteria, operational realities, and an impartial analysis of specific Original Equipment Manufacturers (OEMs). 1. Introduction Solids dewatering represents one of the most critical unit operations in the water and wastewater treatment […]