Tag: oxidation
The halo 5 water system is a UV-based treatment platform many utilities are evaluating for potable, reuse, and tertiary disinfection applications. This article delivers a technical breakdown of its architecture, hydraulics, lamp and control characteristics, and how delivered UV dose performs under representative water qualities, with head-to-head context against TrojanUV, Xylem Wedeco, and Evoqua. For […]
INTRODUCTION Catastrophic force main failures caused by hydraulic transients (water hammer) remain one of the most costly and environmentally damaging events a municipal utility or industrial wastewater plant can experience. When pumps suddenly trip due to power failure, the resulting surge wave can spike system pressures to multiple times their design limit, rupturing pipes, blowing […]
Understanding ozonation meaning is the practical foundation operators and engineers need before they specify or operate an ozone system for drinking water or wastewater. This article cuts the chemistry down to what matters on site — how molecular ozone and hydroxyl radical pathways drive oxidation versus disinfection, and how that translates into generator choice, contactor […]
Introduction One of the costliest errors in municipal wastewater design is the mismatch between pump metallurgy and fluid characteristics. Engineers often default to 316 Stainless Steel for its “universal” corrosion resistance, only to witness premature failure due to abrasive scour in grit-heavy sludge applications. Conversely, specifying standard Grey Cast Iron for septic receiving stations can […]
Introduction One of the most persistent challenges facing water and wastewater utility engineers is the management of disinfection byproducts (DBPs) and the volatility of chemical supply chains. While gas chlorine remains a staple in legacy infrastructure, the industry has seen a massive shift toward liquid sodium hypochlorite due to safety concerns and risk management planning […]
1. INTRODUCTION In the context of biological wastewater treatment, “Aeration Equipment” encompasses a broad spectrum of machinery designed to facilitate oxygen transfer and maintain solids suspension within bioreactors. While diffused air systems are common, mechanical aeration and large-scale process mixing—driven by Propeller and Axial Flow technologies—remain critical for oxidation ditches, surface aeration applications, and internal […]
Certified PFAS Removal Products: An Expert Guide for Water Treatment Solutions Introduction Per- and polyfluoroalkyl substances (PFAS), commonly referred to as "forever chemicals," have emerged as a critical environmental issue due to their persistent presence in water systems and associated health risks. As of July 2025, regulatory frameworks and technological advancements in PFAS remediation are […]
Understanding the Cost to Comply with PFAS MCL: A Comprehensive Exploration Introduction As of July 30, 2025, the regulatory landscape surrounding per- and polyfluoroalkyl substances (PFAS) has reached a critical juncture, notably with the establishment of Maximum Contaminant Levels (MCLs) by the U.S. Environmental Protection Agency (EPA). Municipalities and industries alike are grappling with the […]
Emerging PFAS Compounds: Understanding the New Frontiers in Contamination and Remediation Introduction Per- and polyfluoroalkyl substances (PFAS), often referred to as “forever chemicals,” are a class of synthetic compounds that have garnered increasing scrutiny over the past decade. With more than 4,700 variants identified, the public health implications of these compounds are stark. Recent concerns […]
PFAS Permeable Reactive Barrier: A Comprehensive Solution for Emerging Contaminants Introduction Per- and polyfluoroalkyl substances (PFAS), collectively known for their persistence and bioaccumulation properties, have become a critical environmental concern over the last decade. As of July 2025, numerous studies and regulatory frameworks highlight the urgent need for effective remediation strategies across contaminated sites, particularly […]