Industry Insights

Utilizing Calcite or Limestone Contactors for Remineralization Downstream from Membrane Treatment

Nanofiltration and reverse osmosis treatment reduce Total Dissolved Solids (TDS), incidentally lowering hardness and alkalinity in the process. If not treated further, this low alkalinity, low hardness permeate, can be extremely corrosive to downstream environments. Remineralization, the addition of hardness and alkalinity back into the water prior to distribution, can be a successful means of reducing this corrosion [...]

Your Performance Index: 7 Maintenance Tips for Your Air Supply System

Air Supply Systems consisting of compressors regulators, and receivers are a vital component to the successful operation of your water treatment equipment. To optimize air supply system performance, we’ve provided you with some maintenance tips to keep your system working efficiently.  Oil should be checked daily and maintained at the proper level. Oil should be changed per [...]

How to Avoid an Iron Related Bacteria Failure

Iron Related Bacteria (IRB) is a non-disease producing bacteria that can occur in a water supply when water carries bacteria from the well into treatment systems. While IRB contamination isn’t harmful, it can be nuisance. Iron bacteria are small living organisms that naturally occur in soil, groundwater, and surface waters. Iron bacteria is often found in close proximity to the well screen. The [...]

Your Performance Index: How's Your Paint?

Do you ever lay awake at night and wonder how your paint is looking in the interior of your vessels? Doubtful. Should you be inspecting your interior paint in your vessels? Absolutely. What should you be looking for? Corrosion and bubbling paint, paying special attention to check near the welds. So, why is this important? Paint issues can lead to leaks, eliminating the ability for the tanks to hold water, leading [...]

Your Performance Index: A Troubleshooting Guide for Your Bubbler Panel

A bubbler panel controls the liquid level within a filter vessel. A problem that can occur with bubbler panels is “valve hunting,” when there are large swings in water levels of six inches or more. When this happens there are two areas that need to be checked, the bubbler dip tube located within the filter cell and the reversing relay located inside the panel.  When [...]

Responding to a Legionella Event

Managing an On-Site Legionella Event Building owners are often faced with a decision to test the building potable and utility water for Legionella bacteria. The decision to test, how many locations to test, and how often to test, are best structured in a Water Management Plan (WMP) and are specific to each building. The WMP should be developed in accordance with the requirements of the ASHRAE 188-2018 [...]

Four Ways to Prolong the Life of Your Control System

The Programmable Logic Controller (PLC) is the heart of any treatment system, and a few simple precautionary measures can dramatically extend the life of your control system. One of the most important components to check and replace is the battery used for program backup in the processor. Manufacturers recommend that PLC batteries be replaced on a yearly basis. Plants can experience shutdown after a power [...]

Alternatives for Traditional Cleaning Methods Utilized in Fuel Ethanol Production

Bacterial issues in a fuel ethanol production plant can have expensive consequences, including increased chemical costs and eventually, revenue lost. It is common practice for plants to employ a clean-in-place (CIP) program to protect the product against bacteria. A traditional cleaning aid in fuel ethanol production is a 3-5% caustic solution (sodium hydroxide) used to reduce and remove organic fouling and soil [...]

Investigating the Effectiveness of Antibiotic Combinations Utilized in Fuel Ethanol Production

Bacterial infections during fuel ethanol fermentations can negatively impact the fermentation process and lower ethanol yields. Lactic acid producing bacteria (LAB), such as Lactobacillus , Lactococcus , Weissella and Pediococcus , are a common source of contamination due to their ability to grow in the harsh conditions, low pH, high temperatures, and high concentrations of ethanol, present during fermentation. [...]

An Introduction to Brewery Wastewater Treatment

Wastewater treatment can be overwhelming, and brewery wastewater treatment is no exception. Regulations and permits often require breweries to treat residual wastewater leftover from the brewing process, and failure to treat this water can result in fines and penalties and the effluent from your facility may negatively impact your community. Wastewater treatment comes in various forms, from primary treatment [...]

Four Commonly Asked Questions in Brewery Wastewater Treatment

Can you recommend a product or treatment to assist in the breakdown of a heavy scum layer?   Front end screening can aid in the removal of gross solids, followed by mixing which will keep the scum layer homogenized. Once homogenized a dissolved air flotation (DAF) or clarifier can be used to remove the solids prior to biochemical oxygen demand (BOD) treatment if needed. If there is at least a day of [...]

10 State Standards Update

The Great Lakes – Upper Mississippi River Board (GLUMRB) of State and Provincial Public Health and Environmental Managers have completed the 2018 Edition of the Recommended Standards for Water Works, commonly referred to as the 10 States Standards. Participating State and Provincial agencies meet on an annual basis to establish design guidelines for the waterworks industry. These policies act as guidelines [...]