MDG News and Updates

Before we walk through how to help your customers optimize their WAS holding systems, it’s important to understand how they work. How does a WAS Holding System work? Waste Activated Sludge (WAS) holding systems are a common part of operations in wastewater treatment plants (WWTPs). A WAS holding system, typically in the form of a sludge tank or lagoon, holds sludge after it has been wasted or removed from a clarifier. WAS systems may have aeration and mixing to help digest more sludge before hauling. Some systems will only hold sludge until it’s hauled away (liquid disposal), while others will concentrate the sludge by periodically allowing the sludge to settle and remove water from the top (decanting). After the sludge leaves the WAS holding system, it’s dewatered through a sludge press and disposed of or hauled as liquid. Getting to the Bottom of It If you ask an operator if they have any pains or issues, they may say, “I don’t”. However, they may not know if they do if their system has consistently under-performed and it’s always been that way. Typically, until they see a 20-50% reduction in sludge hauling along with reduced odor and labor costs, they may continue to think […]

If your customer is smelling the result of decomposing organic matter, such as feces, other bodily fluids, dairy, meat, or plant-based materials, chances are they’re smelling a Volatile Fatty Acid (VFA). Figure 1. Common odors associated with VFAs. VFAs are organic acids produced by the microbial metabolism of biomass and food waste; such as dietary fiber, starch, protein, and amino acids. To beat these odors, certain strains of Bacillus have the ability to breakdown VFAs, thereby helping to reduce the problem at the source. At Microbial Discovery Group (MDG) an in-vitro study was conducted to measure the growth of our Bacillus strains in the presence of VFAs. SporActiv® Foundation was grown in media containing acetate and a combination of common VFAs found in the I&I market; acetate, butyrate, propionate, valerate, isovalerate, and isobutyrate. These VFAs were chosen because of their known connection to unpleasant odors.   RESULTS Figure 2. Increase in growth of SporActiv® Foundation grown in media containing acetate, or a combination of six VFAs. The results show that growth of SporActiv® Foundation Bacillus increased by more than 50% when acetate was present, and by more than 100% when the six VFAs were present (Figure 2). The addition of these VFAs allowed for increased Bacillus growth, indicating the […]

As consumers, we constantly search for a particular level of quality in everything we purchase. From toilet tissue, cleaning products, or microbial products, there is an expectation to deliver upon standards. Those standards are established through trust, and it’s incredibly important to uphold that trust to keep the customer coming back. MDG is passionate about delivering a product that meets that high and personal standard. A standard we achieve each time through our trusted processes and quality control (QC) testing. Compatible ingredients such as preservatives, dyes, surfactants, and fragrances are recommended from a list of stability tested ingredients guaranteeing a two-year shelf life. Once an existing or newly formulated product is created, its blended and the SPECs (specifications) are tested via our quality control lab. SPECS such as the effective amount of bacteria for the application, factors that prevent spoilage (pH and preservatives), and making sure there are no unwanted organisms such as pathogens present in the final product. The SPECS are essential to consider the level of quality when QC checks a concentrated Bacillus product, see below:   CFU: AKA, CFU/g or ‘Colony Forming Units’ per gram.  This value represents the actual number of culturable cells in a gram of material. This […]

MDG has completed its obligation to notify under the New Substance Notification Regulations (Organisms) for Environment and Climate Change Canada (ECCC) on strains of Bacillus. Once imported into Canada the strains will be added to the Domestic Substance List (DSL) increasing MDG’s product offering into Canada. Adding these additional strains to the DSL will allow for more products from MDG to be available, focusing on core brands, Biotifx® for Wastewater Treatment and SporActiv® for the Industrial and Institutional market, to be sold in Canada. What is the Domestic Substance List: The Domestic Substance List (DSL) is an inventory of all chemical (and microorganism) substances manufactured in, or imported into, Canada on a commercial scale. 1 The DSL does not cover microorganisms that are regulated by other agencies such as those in food, feed, and fertilizer. The list was originally published in May 1994 with 23,000 substances included. 1 Today the list is at 28,000 substances, including microorganisms, and growing. 3 MDG Bacillus Strain on the DSL: Microorganisms, like MDG’s Bacillus, already exist on the DSL. Each microorganism strain is a unique substance, and each must be reviewed on its own merits for safety. The New Substance Notification (NSN) risk assessment includes general information on the strain, its ecological and biological characteristics, […]

It’s been a tough few years for the pulp and paper (P&P) industry. With an increase in foreign competition and a lowered demand for paper, many facilities have had to tighten their belt. One of the most probable victims of these cuts are the wastewater treatment systems. Wastewater needs to be cleaned while sludge continues to build up. What was once full capacity-lagoons ready to handle a lot of wastewater are now full of sludge. With limitations on a budget, land to build more lagoons and time allotted for dredging, the sludge and holding capacity concerns have fallen to the wayside to be dealt with another time. Maybe that time is now.  Those full lagoons are rearing their ugly heads and maybe you’re realizing that you shouldn’t have ignored that sludge after all. You have no time to build an extra lagoon or dredging may not be a quick enough or a financially viable option. Enter a third possibility: Bioaugmentation. With the help of hardy Bacillus bacteria, you can treat the incoming sludge as you go, while also reducing your current sludge blanket. With bioaugmentation, you can experience results over time and restore treatment capacity. This buys you time and improves water treatment simultaneously. Pulp […]

Many wastewater distributors are faced with finding an efficient product to combat common challenges such as sludge, fats, oils, and grease, and odors. Bacillus-based products have been proven highly effective and reliable to reduce, eliminate, and alleviate these challenges in the wastewater market. Did You Know These Products Come in Liquid Form?   MDG formulates liquid products that include Bacillus strains scientifically selected for their ability to degrade a broad range of organic material and reduce odors like volatile fatty acids and hydrogen sulfide. These systems include lagoons, sludge tanks, aeration basins, grease interceptors, collection systems/sewers, small wastewater treatment plants, and septic systems. Benefits of Liquid Dosing Liquid dosing can help keep systems in check while controlling a wastewater system regularly and with less manpower. Additionally, liquid dosing: Is compatible with any size pump to dispense specific volumes. Can be released at predetermined times allowing frequent dosing (automation). Improves treatment effectiveness by standardizing treatment. Reduces manual labor. How We Can Help Biotifx® Liquid Max is our highest strength and ready-to-use liquid dosing product containing 3X the number of bacteria and micronutrients as the average competitive liquid product. This liquid product is one of the most powerful and impactful products on the market. Biotifx® Liquid Max […]

Save Your Customers’ Business with Bioaugmentation The food service industry inevitably has problems with fats, oils, and grease (FOG), and being proactive vs. reactive can be the difference between a thriving business and no business at all. It is essential to provide your customers with an effective and reliable FOG solution. This will help to prevent health code violations, drain backups, emergency pump-outs, unnecessary downtime, and ultimately poor customer satisfaction. Clogged Drains, Closed Doors Pumping out FOG from drains or pipes can cause your food service customers to close their doors for 2-5 days. This means a significant loss in income for their business. Flies Shoo Away Business Clogged drains may attract flies to a business, but it doesn’t attract customers. The conditions within a clogged drain meet all the requirements for pesky flies. Once making their way to the problem area, flies can transport unwanted bacteria to other areas of the kitchen. Little Trust Leads to Few Customers Customers notice when businesses unexpectedly close their doors. They can also both see and smell big cleaning trucks pumping out FOG in the back parking lot during the middle of lunch hour. Public information on FOG build-up, foul odors, grease spills, or […]

If you’re in the business of keeping your customers’ kitchens running safe and clean, you’re aware of the impact cooking oil can have over time on drains and pipes. A lot of fats, oils, and grease (FOG) can build up in systems like grease traps, sewage systems and industrial systems. Eventually, the FOG from both commercial and residential food preparation can accumulate in pipes and lead to major issues like sewer overflows, problems at pumping stations and odors. Let us now introduce you to your new best friend, Bacillus – a type of bacteria that thrives on the rich nutrients found in FOG. At MDG, we created a Bacillus-based treatment called SporActiv® for the janitorial and sanitation market that effectively digests FOG through bioaugmentation. Using a Bacillus-based solution instead of physical or chemical treatments is cost-effective in that it helps reduce the need for cleaning or pumping FOG from grease traps and lift stations. To demonstrate the effectiveness of our Bacillus at reducing FOG, we conducted a lab experiment, where we added olive oil or vegetable oil to liquid media, treated with SporActiv® Core, and measured the bacterial activity. There was an increase in bacterial activity in the presence of all three types of oil, indicating that the Bacillus were able to use the oils as a food […]

In your search for environmentally friendly cleaning ingredients, you’ve likely come across the term ‘biosurfactants’. Do you know what they are – and what they do in bio-enzymatic cleaners? Read on to become armed with the knowledge you need to make informed formulation decisions. What is a Biosurfactant? A biosurfactant is a biologically derived substance that helps reduce the surface tension of a liquid in which it’s dissolved. In the context of industrial and institutional cleaning, biosurfactants can be produced by a variety of microorganisms and help breakdown difficult-to-degrade materials like fats, oils and grease (FOG). The biosurfactants produced by microbes in bio-enzymatic cleaners are considered safe with few environmental repercussions surrounding their use. They are widely considered to be non-harmful to both human and animal health and are easily degradable. How Do Biosurfactants Work in Bio-Enzymatic Cleaners? Biosurfactants can help boost the degradation of stains within bio-enzymatic cleaners. First, they reduce the surface tension between two otherwise unmixable liquids (think oil from a stain and water from the cleaner base), combining the two liquids together. With the two liquids blended, the microorganisms within the bio-enzymatic cleaner can digest the oil molecules, helping to remove the stain. Additionally, like traditional cleaners without […]

With environmentally friendly cleaners continuing to trend, more and more chemical manufacturers want to know – what’s inside a bio-enzymatic cleaner? In this article, we’ll walk through some of the common building blocks within formulations. Not all ingredients are essential for every product as it depends upon the application, but by understanding each element, you’ll know what you may want to request when discussing products with a manufacturing partner like us. Microorganisms A foundational ingredient to many bio-enzymatic cleaners are live microorganisms. At MDG, we manufacture a type of rod-shaped bacteria called Bacillus that can be used in janitorial and sanitation cleaning solutions to reduce fats, oils, grease (FOG) and the sources of odor in carpets, hard surfaces, bathroom utilities and other applications. Enzymes Enzymes are proteins that are commonly produced by microorganisms, including Bacillus, that speed up specific chemical reactions to help break down complex materials like fat, oil, grease and even paper products! Adding enzymes to industrial and institutional bio-enzymatic products such as household cleaners and odor removers can accelerate the cleaning process and increase effectiveness. These enzymes act immediately, allowing microorganisms present to metabolize the nutrients efficiently. Surfactants Surfactants are commonly added to cleaners to act as a detergent, wetting agent, […]