WHITE PAPERS

	Control and Consequences: Reduce Consequences, Reduce Risk, Save Money America's aging water systems are in need of repair and replacement. Indeed, the American Water Works Association estimates replacement needs of $526 billion over the coming years, while the EPA estimates over 240,000 main breaks each year. The cost of system replacement places extensive financia...
	GRAND RAPIDS SAVES 15% WITH THE RTC-NITRIFICATION SYSTEM The city of Grand Rapids is saving energy and money for its residents after installing a Hach Real-Time Control System in its wastewater treatment plant, receiving a $58,728 rebate check in 2013 from their local public utility, after upgrading the wastewater treatment plant’s aeration system, inc...
	What Makes an Effective Odor Control Cover System Design? A common side effect of wastewater treatment processes is the unpleasant odor that can linger near the plant. Neighbors, offended by the odors, expect a resolution. This white paper examines potential solutions to the odors produced by wastewater treatment plants and presents specific considerat...
	Inline Sludge Screens – Municipal and Industrial Applications How do I remove screenings from my sludge? Even when screens are installed at the head of a treatment facility, debris always ends up in the sludge. Plastic parts and fibrous materials can cripple operation of important downstream technologies. The Huber Technology Strainpress® can effectively re...
	Model Development, Calibration and Simulation of the Continuous-Flow Sequencing Reactor for BNR Applications The complexity of biological activities and the number of process variables important to nutrient removal in wastewater treatment systems require the use of process simulation models. The utilization of advanced activated sludge process simulation models has become an increasingly powerful tool f...
	Automated Wireless Monitoring of Water Distribution Systems Water utilities do a great job of producing good quality drinkable water in their processing plants then push it out into their distribution system where little is known. The primary reason is that monitoring the water distribution infrastructure has been traditionally difficult and expensive. T...
	Infrared Analysis Reduces Regulatory Fats, Oil and Grease (FOG) Testing Costs and Provides Fast Results Fixed filter infrared (IR) analyzers have been used to test oil levels in produced water on offshore drilling platforms for over 45 years. For industrial wastewater professionals a rapid on-site infrared test can be invaluable--saving money, time and SSOs by catching wastewater over the reg...
	Fine Screening Equipment as the First Line of Defense It can be argued that the headworks of a plant might be the most critical place in a Waste Water Treatment Plant. What happens there will greatly influence the downstream process of the WWTP. More specifically, it is the operation of screenings and screenings handling which will have ...
	Economical, efficient and effective mixing: Three approaches to controlling odor in wastewater treatment ponds Wastewater treatment operators have several options for reducing pond odors, from increasing aeration to applying chemicals to perfuming the air. Too often these solutions are expensive and ineffective. Another alternative—long-distance mixing—has emerged as an economical, effective solution for ...
	All Elastomeric Pinch Valves for Isolation, Throttling and Stopping Centrifical Pump Cavitation in Raw Sewage and Sludge in Gravity Lines, Force Mains, Lift Stations, Wastewater Treatment Plants and Flow Equalization This white paper is a brief discussion of the techniques and use of all elastomeric pinch valves to rectify common problems found in valve applications in gravity sewer lines, force mains, lift stations, wastewater treatment plants and flow equalization in the isolation, control and throttling of...
	Level Measurement In A Septic Waste Transfer Station Day Tank Solids and wastewater from residential septic tanks must periodically be removed and transported to a wastewater treatment plant for processing. While awaiting treatment, the waste is typically stored in a sludge tank, the level of which must be continuously monitored to prevent drying up or over...
	Water layering and full-depth mixing: How water layering affects tank water quality--and why full-depth mixing is one solution Most potable water quality problems occur in storage tanks, not in the pipeline. These problems—common in chlorine and chloramine systems, warm or cold climates—can range from temperature stratification, dead zones and short-circuiting to biofilm build-up, loss of residual and, in northern climat...