By: RK Water

The use of steam boilers for industries in the U.S. is essential, especially when you consider they are used in highly monitored industries including food and beverage processing, medical facilities, power generation and sanitation. One of the main components in a successfully functioning steam boiler is the quality of its feed water.

In order to ensure proper operation of steam boilers, high purity water is required. However, through years of experience, RK Water has discovered that the single biggest issue in nonfunctioning steam boilers is poor feed water pretreatment, or, in some instances, no pretreatment at all. This leads to much larger maintenance problems.

TOP 3 REASONS FOR FEED WATER PRETREATMENT IN STEAM BOILERS

1. Boiler failures result in operational downtime, repair and cleaning expenses
2. Extensive scale deposits require more fuel for steam production
3. Hot spots can cause boiler tube corrosion or failure

The evidence of poor pretreatment speaks volumes about the importance of having a scheduled service in place. A good boiler feed water treatment system will help you avoid costly plant downtime, expensive maintenance fees and boiler failures as a result of scaling, corrosion and pollutants in the boiler and downstream equipment.

If you suspect you are having issues with pretreatment, allow RK Water to take a sample of your feed water and run several tests to see what level of hardness is making it to your boiler. Our team can make recommendations, adjustments and even studies and analysis of your current system to see what best meets your needs.

By: RK Water

Before and during the excavation phase, project developers, architects, general contractors and other project partners take many considerations into account when planning the groundwork for a project including soil analysis, solar angles and other site-specific conditions. One of the most overlooked and under-valued planning activities involves an analysis of groundwater on the project site and how it may affect the project. This step is essential; those who skip it are at risk for project shut down or slow down due to unidentified water.

Dewatering is the action of removing groundwater or surface water from a construction site. It’s most commonly performed due to water that has accumulated during excavations or in places with a high water table. In these cases, the water must be removed for safety in order to proceed with construction as scheduled.

So, what’s required to dewater your next project? We will dive into four key pillars in future blogs to include:

• Representative groundwater sampling
• Flow rates and dewatering methodologies
• Permitting – Which one is appropriate to your project?
• Treatment methodologies

With proper planning, treatment of groundwater on construction projects can be a manageable process that allows your timeline to remain on track.

Did you know that RK Water provides temporary and permanent dewatering services? Our team treats a wide variety of water contamination issues in dewatering operations from Total Suspended Solids (TSS) removal to complicated remediation activities. RK Water approaches every project with a high level of engagement leading up to project commencement followed by unmatched field service during dewatering and remediation operations. Contact Steven Cummings at Steven.Cummings@rk-water.com to discuss a groundwater plan for your next project.

By: RK Mechanical

Working outside during the winter can leave construction workers susceptible to hypothermia, frostbite or trench foot, a decaying of the feet due to prolonged cold and wet conditions. In extreme cases, workers without proper personal protection equipment can also suffer shock that could even lead to death. Not only do workers need to stay warm and dry to prevent health risks, but it’s also important to eat properly, stay active and keep an eye on coworkers.

Productivity is often delayed due to harsh weather. So, work hours should be scheduled during the warmest part of the day. Below are some recommendations to stay warm, healthy and safe during the winter season.

Winter Clothing and Layering Reduce Injury Risks

Clothing should be selected to suit temperature, conditions, duration of the activity and location. Wearing proper clothing and layering can reduce sweating and the risk of injury. It’s best to avoid cotton material, as once it gets wet from rain, snow or sweat, it will begin to extract heat out of the body. Some alternate material choices are fleece, wool, Thinsulate, nylon and polypropylene. Weather can change rapidly, therefore it is important to plan and dress accordingly.

The top nine types of clothing to wear while working in the cold:

1. Thermal insulated coveralls
2. Thermal polyester underwear
3. Fleece or wool liner for hard hat
4. Insulated gloves, mittens should be worn for extreme temperatures below -17 degrees
5. Wrap-around eye protection
6. Scarves
7. Thick socks: layer two pairs to stay warmer longer, but avoid a tight fit which restricts circulation
8. Insulated boots
9. Waterproof/windproof external layers

Warm Break Areas Help Re-energize

When spending long hours exposed to the elements, a warm area to rest will help workers warm up and re-energize. Breaks are of the utmost importance, but without a warm and comfortable place to rest, breaks can be useless. For long-term construction projects, setting up a warming shelter is a must. Temporary tents with portable heaters can be used for smaller projects.

Incorporate a Buddy System to Stay Safe

Avoid traveling or working on your own unless someone knows your route and estimated time of return. Workers in frigid weather can show signs of uncontrolled shivering, slurred speech and erratic behavior. Keep an eye on your peers to help them stay safe.

If a co-worker is showing early signs of Hypothermia, like uncontrollable shivering, apply these treatments to help:

• Provide them with a warm drink or hot food to quickly restore body heat
• Keep them moving to increase blood flow and warm the body
• Provide an extra layer of clothing or blanket, if available, to prevent further heat loss

If more severe signs are present, such as slurred speech or erratic behavior, call for emergency help right away. While waiting for help to arrive, provide warm drinks, extra layers and heating blankets, if available.

Hydration and Good Snacks are Important in the Winter

• Hydration is very important in the winter. Drinks with caffeine and alcohol should be avoided, as they restrict blood vessels and impede the body’s ability to heat itself. Make sure to consume lots of water and non-caffeinated hot beverages, such as decaffeinated coffee, tea or hot chocolate throughout the day.
• Several snacks throughout the day are better than one or two heavy meals. The best choices are carbohydrates such as bread and bagels as well as cheese, butter and meats which add fat content to keep your body warm.

Save Your Skin from Freezing Temperatures

• Apply skin cream to exposed skin to help avoid frostbite and ward off hypothermia.
• Equipment with metal handles and bars should be covered by thermal insulating material and designed to be operated with proper grip using mittens or gloves.

It’s especially important to stress these simple points to people who may not be accustomed to cold temperatures. Holding safety meetings to help workers identify the signs and symptoms of cold-related illness and injuries and training them how to prevent and treat these injuries can save lives.

At RK, we take safety seriously and empower our employees to stop work if unsafe conditions exist. We encourage our employees to take responsibility for their own safety, as well as that of those working alongside them. Working responsibly in cold weather is no exception.

RK assesses how every aspect of our work integrates to improve your project. From conception through completion, we streamline the process while maximizing value. The combined skill set of our seven business units makes us the region’s most powerful single source for mechanical contracting, custom manufacturing, steel fabrication, prefabricated construction, facilities services, electrical work and water treatment solutions. If you would like to know more about our safety procedures or have questions about what we can do for your business, contact us at communications@rkindustries.com.

By: RK Water

The water treatment industry is evolving to reduce the use of chemical treatments and eliminate some products that are no longer viable given today’s environmental legislation as well as corporate sustainability initiatives. Facilities, as well as Facility Operators, need solutions to keep up with the times.

As government regulations continue to become more stringent, water treatment programs must adapt. New technologies that provide greener, safer and sustainable solutions are becoming more readily available to help meet these regulations. One such technology, the Silver Bullet® system, is gaining traction as a viable way to reduce traditional chemicals as well as kill microbiological agents through natural processes.

RK Water has achieved positive results, reducing liquid chemistry by over 80{daeb8d662f58e4975bc93960761d671bdf0aa2ad049ea8a375d2717d280ef80b}, using the Silver Bullet system with clients that are seeking sustainable water treatment solutions for HVAC evaporative cooling (comfort cooling) or process cooling, particularly in industries including high-tech, financial, education and government.

Corporate sustainability is a growing trend and now impacts many business decisions and purchases. Many big-name corporations, like Google, are ISO 14001 certified as well. ISO 14001 is a set of standards to help organizations minimize their impact on the environment during the process of how their products or services are produced.

Whether an organization’s goal is LEED points, reducing environmental impacts and carbon footprints or reducing water usage and waste, Silver Bullet can be a key component of a sustainability program. It can help a facility reduce biocides and large containers of inhibitor, and also reduce the logistics, transportation, storage and liability issues that are inherent with chemical-based water treatment.

If your facility has ever experienced a chemical spill or leak, you know how excruciating it can be to conduct a clean-up. It’s worth considering the Silver Bullet system as an add-on to your current water program. A water system with reduced chemicals not only helps achieve sustainability goals but is also safer for people.

If you have questions or want RK Water to conduct a water treatment evaluation to improve your entire water system and help your company go green faster, contact Dan Inman at Dan.Inman@rk-water.com.

By: RK Water

The Centers for Disease Control and Prevention (CDC) recently reported that Legionnaires’ disease nearly quadrupled in the United States from 2000 to 2015, and most cases could have been prevented with water treatment solutions to prohibit legionella bacterial growth in water.

From 2000 through 2014, legionellosis increased nearly fourfold, from .42 to 1.62 cases per 100,000 persons. The disease is contracted when a person breathes small droplets of water contaminated with the bacteria Legionella. In the past year, about 5,000 Americans were diagnosed, and more than 20 outbreaks were reported. About one in ten infected persons will die from the infection, and most require hospital care to make a full recovery.

The CDC cited that cooling towers are a common source of infection and must be properly maintained to prevent legionellosis, and they recently released a toolkit: Developing a Water Management Program to Reduce Legionalla Growth and Spread in Buildlings: A Practical Guide to Implementing Standards.

Most facilities managers are now familiar with ASHRAE 188-2015 which mandates that everyone with responsibility for centralized water systems-owners, corporate managers, operators and facility managers-must proactively reduce and prevent legionella growth. RK Water provides chemical treatment programs that can be added to existing water treatment programs to reduce the odds of legionella.

We also offer innovative non-chemical technologies like Silver Bullet which uses biocide oxidizers, known as hydroxyl radicals, to kill bacteria and maintain it at low and safe levels-even more effectively than chlorine. In a 2012 University of Pittsburgh study, Silver Bullet™ reduced free-floating legionella bacteria concentration by 78.1{daeb8d662f58e4975bc93960761d671bdf0aa2ad049ea8a375d2717d280ef80b}. It also reduced free-floating Heterotrophic Plate Count (HPC) bacteria by 98.8{daeb8d662f58e4975bc93960761d671bdf0aa2ad049ea8a375d2717d280ef80b} and immobile HPC bacteria by 85.9{daeb8d662f58e4975bc93960761d671bdf0aa2ad049ea8a375d2717d280ef80b}. The HPC test measures microorganisms such as bacteria, yeast and mold in drinking water.

Silver Bullet is safe, quick to install and doesn’t require a large capital investment. The equipment is installed at a facility as an adjunct to its existing water system and the facility pays a monthly rental fee. No large equipment to purchase, and RK Water handles installation, service and maintenance. Want to protect your water system from Legionella? Consider Silver Bullet if you prefer a non-chemical, sustainable solution.

positions the arm and the arm acts on a trigger to open and close the valve. The makeup water pressure recommendation is typically 15psi minimum and 50psi maximum. Too little pressure and the valve may not keep up with the flow requirement. Too much and the valve may pin the float ball ‘down’ and force the valve open.

Electric valves are not very common. There are manufacturers such as Magnetrol that make float switches for 120v but most ‘electric’ valves are more correctly described as ‘electronic’. The reduced voltage lessens the shock hazard, should someone bump into a water level probe while inside the cooling tower. The most common electronic make-up valve is made by ‘Warrick’ and a Google search will yield more info than this short description can provide. The probe can be mounted inside the tower, surrounded by a stilling chamber to subdue the wave action of the water or, in a simple vertical pipe (typically 2″) outside the tower and equalized to the tower cold water basin at the bottom.

Three vertical, ¼” diameter, stainless steel probes point down into the water. The first is cut to nearly reach the basin floor, the second at the level where the make-up valve comes on and the third probe at the level where the make-up valve shuts off. Additional probes can be provided to indicate ‘high’ or ‘low’ water conditions but the three probes described form the basic probe assembly. The three probes are wired to a controller which includes a control relay that directs 120v to a solenoid valve in the make-up line. Such systems are more prone to water hammer than the other types, due to the quick acting nature of the make-up solenoid valves.