Tag: Municipal Wastewater
Introduction For municipal and industrial plant engineers, odor control is rarely the most expensive process on site, but it is frequently the most politically volatile. A single failure in hydrogen sulfide (H2S) capture can result in public complaints, regulatory fines, and rapid corrosion of critical electrical assets. A surprising statistic in municipal wastewater management is […]
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 Grit accumulation remains one of the most pervasive and costly “silent failures” in municipal wastewater treatment. While headworks screens provide visible capture, grit often bypasses preliminary treatment, settling in aeration basins, reducing digester capacity by up to 30%, and causing premature abrasion failure in downstream pumps. For consulting engineers and plant directors, the selection […]
PFAS chemicals have become a major concern for wastewater treatment facilities across the country. These synthetic compounds, known as “forever chemicals,” enter wastewater systems through industrial discharges, commercial operations, and everyday household products. Wastewater treatment plants receive PFAS from multiple sources including manufacturing facilities, car washes, industrial launderers, and residential use of products like stain-resistant […]
Sand Filtration Systems: The Ultimate Guide for Treatment Plants Introduction Welcome to the deep dive into the world of sand filtration systems! If you’ve ever sipped clean water from your home faucet or taken a refreshing swim in a pool, you might have unknowingly benefited from these unsung heroes of water purification. Sand filters are […]
Complete Guide to Modern Wastewater Treatment Methods Introduction Welcome to the fascinating world of treatment of wastewater, where science meets sustainability and innovation dances with necessity! If you’ve ever wondered what happens to the water that swirls down your drain after a particularly epic bubble bath or that last-minute spaghetti dinner, you’re in for a […]
Designing Modern Effluent Treatment Plants: Best Practices Guide Introduction Welcome to the world of effluent treatment plants, where science meets sustainability in the quest to keep our water clean and our environment healthy. Think of these plants as the unsung heroes of urban infrastructure, tirelessly working behind the scenes to transform used water into a […]
PFAS in Biosolids: Understanding Risks and Solutions Introduction Per- and polyfluoroalkyl substances (PFAS) are a class of synthetic chemicals that have garnered significant attention in environmental discussions due to their persistence in the environment and human body. As of July 2025, regulatory scrutiny over PFAS content in biosolids has intensified given their potential for adverse […]
Essential Guide to Wastewater Screening: Protecting Treatment Plants Introduction In the world of wastewater treatment, where every drop matters, ensuring that our treatment plants operate efficiently and effectively is crucial. Enter the unsung hero of the wastewater treatment process: wastewater screening. While it might not have the glamour of cutting-edge bioreactors or advanced chemical processes, […]
Ultimate Guide to Sequencing Batch Reactors: Revolutionizing Wastewater Treatment Introduction In the ever-evolving landscape of wastewater treatment, one system stands out for its ability to combine efficiency with innovation: the Sequencing Batch Reactor (SBR). Imagine if your washing machine could not only clean your clothes but also iron, fold, and sort them by color. While […]