The authoritative resource for consulting engineers, utility managers, plant operators, and municipal decision-makers. 1. Introduction to Delaware’s Wastewater Infrastructure Delaware’s water and wastewater infrastructure serves a unique geographic landscape, supporting just over 1 million residents across its three counties—New Castle, Kent, and Sussex. Despite its small size, the state manages a highly diverse treatment portfolio, […]
1) INTRODUCTION One of the most critical and permanent decisions a process engineer will make during facility design is selecting the core filtration technology and its corresponding original equipment manufacturer (OEM). A common specification mistake in municipal and industrial treatment is sole-sourcing a proprietary technology without a rigid analysis of 20-year lifecycle costs, replacement part […]
Introduction to Water Treatment Instrumentation & Controls: SCADA Sensors & Automation One of the most frequent and costly failures in modern water infrastructure is not structural or mechanical—it is a failure of visibility. When an aeration blower consumes 40% more energy than required because a dissolved oxygen sensor has drifted, or when a remote lift […]
INTRODUCTION In municipal and industrial water and wastewater facilities, a failing analytical sensor does not just drop a signal—it cascades into process upsets that can cost tens of thousands of dollars in chemical overdosing, cause severe corrosion, or trigger immediate regulatory compliance violations. Relying on blind assumptions rather than real-time data is no longer viable […]
Introduction: Navigating the Complexities of Membrane Separation A catastrophic decline in normalized permeate flux is an engineer’s worst nightmare, often resulting from improper pretreatment, aggressive recovery targets, or fundamental specification errors during the design phase. Whether you are scaling up municipal desalination or designing a zero-liquid discharge (ZLD) industrial loop, understanding the RO Water Treatment […]
Introduction Membrane separation technologies have become the backbone of modern municipal desalination, industrial process water generation, and advanced wastewater reuse. However, misjudging feed water chemistry or specifying the wrong membrane configuration can lead to catastrophic fouling, severe hydraulic imbalances, and operational expenses (OPEX) that rapidly eclipse capital cost savings. To navigate RO Systems & Buying […]
INTRODUCTION For decades, municipal and industrial water treatment facilities have relied on conventional polymeric membranes—primarily polyethersulfone (PES), polyvinylidene fluoride (PVDF), and thin-film composite (TFC) polyamides—for microfiltration, ultrafiltration, and reverse osmosis. While these conventional materials revolutionized the industry, they are fundamentally constrained by the permeability-selectivity tradeoff (often referred to as the Robeson upper bound), high susceptibility […]
Introduction In modern municipal and industrial facilities, biosolids management frequently accounts for up to 50% of a plant’s total operating budget. Specifying the wrong sludge reduction technology can lead to catastrophic downstream issues, including foaming, sour digesters, excessive polymer consumption during dewatering, and skyrocketing disposal costs. Navigating the landscape of the Top Digester Manufacturers for […]
1) INTRODUCTION One of the most persistent challenges in biological wastewater engineering is increasing plant treatment capacity or meeting stricter effluent limits within an existing footprint. Expanding clarifiers or building new aeration basins is highly capital-intensive and often physically impossible due to land constraints. This constraint has driven the widespread adoption of fixed-film biological processes. […]
Introduction In municipal and industrial water treatment, inaccurate chemical dosing directly translates to regulatory permit violations, accelerated equipment corrosion, and thousands of dollars in wasted chemical expenditures annually. Specifying the correct dosing equipment requires navigating a complex matrix of fluid rheology, vapor pressure characteristics, turndown requirements, and control schemes. Welcome to the comprehensive Chemical Metering […]