The need for cooling-water systems is common among industrial applications, but the treatments needed to keep them operating at peak efficiency can change from location to location and season to season. Here is why a different type of quaternary ammonium compound (quat) algaecide has an important role to play in balancing performance, efficiency, and total lifecycle costs across many cooling-water-treatment regimens.

The word “unprecedented” is overused and often abused. Water stress, however — the situation in which the water resources in a region or country are insufficient for its needs — is today a major threat and we are in fact facing “unprecedented” challenges. Climate change is a big factor contributing to it, but it’s not the only factor. Without rapid changes in industrial water usage, it is predicted that within 10 years there will be a 40 percent global water deficit.

Biofilms are extremely complex ecosystems that provide excellent protection for the microorganisms within. This often makes them difficult to kill, even with chlorine. Basic understanding of biofilm ecosystems and their behavior to chlorine and other oxidizing biocides can offer valuable insight into achieving better microbial control. 

Sigura™ calcium hypochlorite offers cooling tower operators and their service providers a highly effective biocide designed for controlling microorganisms to maintain system cleanliness, achieve associated production efficiency gains, and help guard against biofouling. Learn how a West Coast service provider's switch to Calcium Hypochlorite lead to a more consistent chlorine concentration and eliminated the need for frequent pump adjustments.

The proper selection and use of wet-end biocidal treatments is a key element in the effort to optimize efficacy and efficiency in papermaking. Biofilm control represents a challenging form of microbial control in a mill and can lead to a variety of mechanical and product issues. Chlorine-based biocides are often selected to maintain microbial control for cost, efficacy, and ease of application considerations. Hydantoin stabilization technology was developed to benefit from the advantages of chlorine-based oxidants.  

Calcium hypochlorite is a low-cost, solid biocide option for treating cooling towers. This white paper reviews points of consideration when making a selection for a cooling tower water treatment program and highlights advantages to utilizing calcium hypochlorite as a biocide. 

The proper selection and use of wet-end biocidal treatments is a key element in the effort to optimize efficacy and efficiency in papermaking.  Biofilm control represents a particularly challenging form of microbial control.  Hydantoin stabilization technology was developed to protect the advantages of chlorine-based oxidants for microbial control, while improving efficacy, efficiency, and potentially overall cost of the treatment program.

Legionnaires’ disease first garnered public attention in 1976. After attending an American Legion convention at a Philadelphia hotel, 221 people became ill, with 34 dying of a mysterious illness. The U.S. Centers for Disease Control and Prevention (CDC) launched a major investigation, and in 1977 identified the responsible bacterium, naming it Legionella.

Biofouling in cooling towers is undesirable because it can reduce heat transfer efficiency, restrict water flow, and accelerate corrosion rates. Of even greater concern is the fact that pathogen growth in cooling towers can lead to disease transmission. Given the favorable growth environment of a cooling tower, these microorganisms can reproduce, proliferate and form complex biofilm communities. Legionella bacteria, which cause Legionnaires’ disease, are one of the greatest concerns from a public health standpoint because infections are often lethal and cooling towers are the most frequently reported non-potable water source of Legionnaires’ disease outbreaks (Llewellyn 2017).

The active ingredient in Bardac® LF 18 is dioctyl dimethyl ammonium chloride. This product comes in two concentrations: -10WT (10% w/w) and -50WT (50% w/w). Several chemical properties of this product yield key benefits that set it apart from other industrial cooling water products. It is a quaternary ammonium compound (quat). Quats are typically low cost and highly effective biocides for a broad spectrum of organisms.

Recording now available! Speaker Ellen Meyer, Product Safety and Governmental Affairs Manager, discusses Applications of Calcium Hypochlorite in Cooling Towers. Learn about microbiology in cooling towers as we discuss the advantages of using Calcium Hypochlorite to combat adverse effects resulting from biofilm and biofouling.

Watch and learn how optimizing bio-control in paper & board production should be at the center of your water treatment program. Hosted by Lievin De Vriese, Business Development Manager at Sigura.