Water Treatment Chemistries

Biological Augmentation Minimizes Odor, Improves Environmental Safety and Optimizes Operation at Wastewater Treatment Facility

A protein further processing plant located in midwest United States was concerned with objectionable odors, hydrogen sulfide levels, and poor system efficiency in their wastewater treatment plant. The cause of these issues was found to be a sludge cap on their waste receiving pit and the associated growth of anaerobic bacteria beneath the cap. To remediate this problem, select strains of naturally occurring aerobic [...]

Protecting Your Power Plant from Corrosion During Downtime

In the Power industry, every minute is critical. A smooth plant start-up is vital to operations, and directly linked to lay-up procedures. A thorough understanding of critical lay-up and start-up strategies & procedures, paired with a proper corrosion control protection program can prevent unscheduled downtime, reduce operating costs and increase plant reliability. In the gas fired combined cycle market, [...]

Power Plant Water Treatment System Restored After a Decade of Non-Use

After ten years of inactivity, a midwestern combined cycle power plant needed to bring its water treatment system back into operation. The previous equipment had been sitting idle after the previous owner went bankrupt, and required major cleanup and upgrades. While other water treatment companies were offering a chemical exclusive program, it was evident the plant would require a complete integrated solution to once [...]

Water Softener System Maintenance & Troubleshooting

A water softener system is one of a facility’s the best methods of defense against scale formation due to hard water on heat transfer surfaces, such as heat exchangers and boilers. In addition to a savings in energy, water and chemical costs, a well maintained softener can extend piping and equipment life. Some of the most common issues an operator may experience when maintaining water softener equipment is [...]

Boiler Automation Programs Ensure System Protection & Reliability

Monitoring and controlling a boiler’s internal treatment program is one of the best ways to prevent system downtime and avoid major repair costs. Common equipment problems, such as corrosion, scale and deposition can result in over $60,000 in repair costs and 2-3 days of downtime. Implementing a boiler automation program offers facilities the system protection and reliability required to run efficiently and [...]

Chlorine and Your Cooling Water System

The proliferation of microorganisms (bacteria, fungi, and algae) presents a significant challenge in the maintenance and operation of process cooling water systems. Excessive accumulation of biofilm can lead to system fouling and corrosion, loss of heat transfer and reduction in energy efficiency, downtime for cleaning, illness or death, and costly equipment repair or replacement. In order to minimize or prevent these [...]

When Every Drop Matters: U.S. Water’s Irrigation Management Program

In the agriculture industry, every drop matters. Water is an essential component in crop production, and the pressures of usage regulations and environmental stewardship initiatives to ensure efficient water use are felt throughout the agricultural community. The maintenance program for a field's irrigation system must be efficient, effective and cost-conscious to ensure the crops are getting the right amount of [...]

Automated Chemistry Program Saves Hospital Over 3 Million of Gallons of Water Per Year

California's PIH Health Hospital – Downey was considering a new solution for its cooling towers and chillers to improve current operations. U.S. Water was asked to review the system and provide suggestions. After meeting with the facility's team, U.S. Water representatives conducted a full audit of the facility, which included a complete water analysis. During the audit U.S. Water discovered water [...]

U.S. Water’s PhosZero™ Program Improves Corrosion Rates and Meets Discharge Limits at Power Plant

A Midwest power plant was experiencing scale and white rust build-up inside their cooling tower condenser tubes, creating obstacles cooling the inverter. If left untreated, the build-up could result in a costly asset replacement and unscheduled down-time. The Minnesota Pollution Control Agency (MPCA) was also in the process of instituting new phosphate discharge limits, which encouraged plant management to take [...]

U.S. Water’s PhosZero™ Chemistry Named Finalist in R&D 100 Awards

U.S. Water, the leading national provider of integrated solutions for water treatment, has been selected as a finalist by the R&D 100 Award Program for PhosZero, its unique antiscalant and corrosion inhibitor, cooling water chemistry. PhosZero's patent pending, sustainable technology provides both scale and corrosion protection while exhibiting reduced aquatic toxicity. This is important because [...]

U.S. Water’s Unique Sulfur Control Solutions

Let's start with the scrubber. Aldehydes, primarily acetaldehyde, in fermentation gas are considered to be “hazardous air pollutants (HAPs)” by EPA. Aldehyde control is often based on sulfites, which react with the aldehydes, making them “scrubbable”. If you use more than required sulfur dioxide (SO2) gas can freely pass through the final stages of distillation and dehydration and [...]

Protecting Your Pipeline During the Winter Months (Q&A with Industry Expert)

What happens if you do not develop and implement a preventive plan to protect your lines and equipment during the winter? The likely result will be increased freezing, plugging and/or hydrate formation. These items will lead to unscheduled downtime or excessive personnel overtime. When is the best time to inspect your pipeline, facilities and equipment, and develop your winter protection plan? Early fall, [...]

New State Water Discharge Permit Limitations Impact Saint John’s University Central Plant Operations, U.S. Water’s Comprehensive Water Treatment Program Meets New Permit Limitations

In compliance with their existing water discharge permit, Saint John's University's central plant discharged their boiler streams to an on campus wastewater treatment plant with the cooling tower blowdown discharged to a nearby lake. However, when the plant underwent the renewal of their water discharge permit, they faced new, tighter, discharge limits. The new permit limitations required significant [...]

GHS Compliance Update

Last year we introduced you to the Global Harmonization System (GHS), an international approach to standardized hazard communication through a single set of hazard ratings, product labels, and Safety Data Sheets (SDS). In June 2015, U.S. Water adopted this new standardized classification and labeling system. Throughout the last year, U.S. Water customers have received new GHS labeled products and SDSs distributed [...]

The Importance of Spring System Maintenance

Most cooling tower manufacturers recommend facilities clean their cooling towers quarterly, or at the very least, twice a year. OSHA suggests this maintenance be conducted prior to spring start-up and after fall shutdown. During the winter season, many cooling towers have been in layup mode, which provides a favorable environment for growth and incubation of organisms, including Legionella . Not only does cleaning [...]

Cooling System Lay-Up

Protecting your system during the winter season with the right layup program will significantly reduce the amount of chip scale that will loosen up in the spring, prevent corrosion and iron-throw, and greatly extend the life of your equipment. U.S. Water offers four products that can be used for cooling lay-up; Protect 649, CTL-440, TOWERCLEAN 819 and Tower Toads . Each chemical has a best fit, and each [...]

GHS Implementation Update

In our spring newsletter, we introduced you to the new Global Harmonization System (GHS). GHS is an international approach to standardized hazard communication through a single set of hazard ratings, product labels, and Safety Data Sheets (SDS). In June 2015, all United States chemical manufacturers adopted this new standardized classification and labeling system. Customers have until June 1, 2016 to have all products [...]

Non-Phosphorus Cooling Tower Treatment, PhosZero, Provides Advanced Corrosion Protection

Phosphorus has long been recognized as the controlling factor in plant and algae growth for many lakes and streams. A minor increase in phosphorus can fuel substantial increases in both aquatic plant and algae growth which can have severe impacts on a community. Phosphorus can originate from municipal and industrial facilities that discharge water as well as runoff from agricultural areas that makes its way into local [...]

Legionella Prevention: New York Takes Unprecedented Steps to Battle Legionnaires’ Disease

The recent regulations put forth by the State of New York  and New York City  will incorporate extraordinary measures for cooling tower disinfection, bacteria testing, increased inspections and operational management of cooling water systems. Water Treatment and Tower Maintenance Properly maintained cooling towers and evaporative condensers should have a comprehensive water treatment and [...]

ANSI/ASHRAE 188-2015: Minimizing the Risk Associated with Legionella

Introduction In June of 2015, the ASHRAE standards committee approved the final draft of Standard 188, Legionellosis: Risk Management for Building Water Systems. This document establishes the minimum requirements for the development, implementation and ongoing maintenance of a legionella risk management program in new and existing buildings. The Standard is a culmination of several years of work by experts in [...]

U.S. Water Launches Revolutionary Breakthrough in Sustainable & Cost-Saving Cooling Water Treatment

U.S. Water has launched PhosZero™ with E-FeX™ Technology, a breakthrough in sustainable chemistry for cooling water treatment. U.S. Water's latest generation of PhosZero contains E-FeX Technology, a synergistic blend of ingredients that replaces the most common uses of phosphorus in cooling water applications. The PhosZero family of cooling water treatment products are designed to provide both [...]

Understanding the Global Harmonization System and What it Means for You

By June 1, 2015, all United States chemical manufacturers and importers are required to adopt the Occupational Safety and Health Administration's (OSHA) new standardized classification and labeling system, The Global Harmonization System (GHS). GHS is an international approach to standardized hazard communication through a single set of hazard ratings, product labels and Safety Data Sheets (SDS). What does [...]

The Pursuit of a Green Carbon Steel Corrosion Inhibitor: Laying the Groundwork - Part 2

Abstract Many inhibitors considered for use in an environmentally friendly corrosion inhibitor program are organic in nature and may be subject to oxidation. This paper aims to expand on previous studies to determine acceptable green corrosion inhibitors for use in open system cooling waters by examining the effect of oxidizing biocide on their performance. Pilot-scale corrosion testing is used to generate results [...]

Spring Tower Start-Up Tips & Tricks

Many cooling towers start-up in the spring and you need your cooling equipment to work reliably during the hot summer months. Unexpected outages are very expensive, and clean heat transfer surfaces contribute directly to your bottom line energy savings. A little effort spent getting your cooling tower ready in the spring will pay big dividends throughout the summer cooling season. Follow these steps to reduce [...]

The Pursuit of a Green Carbon Steel Corrosion Inhibitor: Laying the Groundwork - Part 1

Abstract Corrosion control of carbon steel heat exchange components is becoming more important as energy costs rise and the demand for environmentally friendly chemicals is on the water technology forefront. This article explores the effectiveness of various inhibitors in open system cooling tower water that is both corrosive and scaling. Part 1: Laying the Groundwork gives an overview of the inhibitors tested and [...]

Why Should I Lay-Up My Cooling Tower?

Each year we get many of these questions from people, all stemming back to the central question of what is cooling tower lay-up and why do we do it? If any of these sound familiar to you then you may want to read on. “We wait to punch tubes until spring.” “I just drain the tower piping to the roof line.” “We leave the tower filled ‘just in case.'” “I [...]

Trends in Industrial Wastewater Treatment

U.S. Water’s Technical Manager, Gary Engstrom provided insight into wastewater trends for Flow Control Magazine. The article, written by Matt Migliore, appears below. As the scarcity of water becomes a more pressing issue worldwide, the drive for industry to reclaim and reuse wastewater grows more important. Moreover, industry faces increasingly stringent state and federal requirements regulating [...]

Using Boiler Inspections To Diagnose Deficiencies Before They Cause Problems

Boilers can be dangerous if not inspected and maintained properly. Each year, countless accidents, breakdowns and unnecessary shutdowns occur among industrial boilers. While boiler safety devices are designed to prevent dangerous conditions from elevating into disasters, only proper boiler maintenance prevents the development of dangerous operating conditions in the first place by finding deficiencies before they [...]

Cooling Tower Toads Significantly Reduce Corrosion During Layup

Every year the cooling system for an industrial plant providing comfort cooling was shutdown and drained for the winter months. Historically, during this shutdown period the cooling water piping and equipment would experience severe corrosion. During start-up of the cooling system the next spring, iron flakes would peel off the piping plugging strainers and heat transfer equipment. This would interfere with the [...]

The High Cost of Corrosion: Is Your Plant At Risk, Part 2

UNIFORM CORROSION is characterized by a corrosive attack occurring evenly over the entire surface area of a large fraction of the total area. General thinning takes place until failure. On the basis of tonnage wasted, this is the most important form of corrosion. However, uniform corrosion is fairly easily measured and predicted, making disastrous failures relatively rare. The breakdown of protective [...]

The High Cost of Corrosion: Is Your Plant At Risk, Part 1

Corrosion is a naturally occurring phenomenon commonly defined as the deterioration of a substance (usually a metal) or its properties because of a reaction with its environment. Corrosion can cause dangerous and expensive damage to water and wastewater systems, pipelines, bridges and public buildings costing the U.S. according to a current corrosion study approximately $276 billion on an annual basis. Fortunately, [...]

Maximize Asset Protection & Minimize Chemical Costs by Maintaining Your Thermal Energy/Large Chilled Water System

When treating Thermal Energy Systems or Large Chilled Water systems the following standards should be followed to minimize costs to chemically treat these systems and protect the equipment assets. Filtration Use of Biocides Use of Corrosion Inhibitors General Maintenance and Monitoring Filtration  Given the size of these systems the most effective filtration is low micron sand [...]

The Sometimes Maddening Question of Boiler Lay-Up

With more and more steam boilers being asked to provide intermittent service, there is renewed focus on the proper treatment of boiler systems while they are offline. In the Power industry it is not uncommon for a combined cycle plant to operate less than 30% of the time, meaning the vast majority of the time the boiler is idle. The rise of renewable power assets that have intermittent and [...]

Preventing Scale Formation in Reverse Osmosis Systems

Reverse osmosis (RO) systems behave similar to a boiler or a cooling tower in that they cause the dissolved salts in their make-up water to become more concentrated.  As pure water permeates the RO membrane, the salts are left behind in a concentrated stream. If the solubility of any particular salt is exceeded, the potential exists that the salt will form scale directly on the membrane surface or possibly within [...]

Minimizing White Rust In Galvanized Cooling Towers

Galvanized coatings for cooling tower systems have been used in the industry since the 1950s. The galvanizing process binds a layer of zinc metal to steel. When properly applied and passivated, the zinc coating works as a nonpermeable sacrificial anode to prevent corrosion of the underlying steel structure. White rust, which is the oxidation form of the zinc coating, shows up as white spots and bumps on a galvanized [...]