By: Gerald Dlubala
Wastewater has traditionally been considered a necessary byproduct of doing business,” said Matt Seng, the global strategic accounts manager for Cambrian Innovation, Inc. His company is a leader in sustainable resource management, providing clean water, renewable energy and water treatment as a service to industrial manufacturing businesses. “Businesses buy water, bring it in to produce a product, then they have wastewater left over that goes out to the city’s treatment system. For many years, businesses just assumed this is just how it is, like in our homes,” he said.
Now, thanks to advanced technologies, winery wastewater can be treated, extracting reusable, valuable resources for reuse in the vineyard and winery.
Cambrian Innovation Inc: Wastewater Treatment as a Service
Cambrian Innovation’s unique Water Energy Purchase Agreement (WEPA) provides on-site wastewater management services that transform the winery’s wastewater into renewable energy and clean water for reuse within the winery and vineyard.
Matt Seng has been with Cambrian Innovation since its inception. He tells The Grapevine that Cambrian’s innovative and cutting-edge Water Energy Purchase Agreement (WEPA) is winery friendly, using biological treatments that mimic the earth’s natural cycles and wastewater treatments to help move their clients to their sustainability, clean water and renewable energy goals.
“At Cambrian, we’ve looked at the wastewater that the food and beverage industry produces and see that there are some resources in that wastewater that we can extract using technology,” said Seng. “We can provide an on-site treatment system that extracts those natural resources and returns them to the plant for use.”
“We use a couple of different technologies, some of which produce renewable energy in the form of biogas, which is the natural fermentation of the byproduct of a natural process occurring in nature,” he said. “That biogas is returned to the winery for use as fuel for a boiler to heat up water or produce steam. Biogas is categorized as renewable energy because it replaces or reduces the amount of fossil-based natural gas that needs to be extracted. In that process, we clean up the water for reuse in the winery for cleaning and washups. We take the status quo of paying the city for water only to pay them again to dispose of wastewater and flip that script. Cambrian can do this for you on-site with several advantages.”
Advantages of Cambrian Innovation Wastewater Treatment Systems
Those advantages include producing renewable energy, so wineries don’t have to buy as much natural gas from the gas company to fire their boilers. Another result is receiving clean, EPA-quality drinking water back from the treatment.
“This isn’t grey water, and it’s not partially treated wastewater,” he explained. “It’s drinking water made possible because we use the same technologies that the city uses to make its drinking water. The net result is there is less water going to the city’s treatment system, which reduces their emissions of greenhouse gases. And we’re now also enabling the winery to buy less city water to bring into the winery. We’re reducing the amount of city water coming in and the amount of wastewater going out, and we’re keeping those natural resources of energy and drinking water on-site.”
Seng tells The Grapevine Magazine that their business model is service-based over equipment sales. “We want to own and operate the system,” said Seng. “That is very compatible with many winery owners who just want to make wine. They don’t want to treat water and wastewater. So we do this as a service rather than selling them the equipment to do it themselves. Then, winery owners don’t have to spend the capital to purchase, operate or maintain this technology. They pay Cambrian a service fee based on the amount of wastewater that is treated.
“All of this work involves biology, which anyone in the wine industry knows well,” said Seng. “It’s all about biological processes, some of which occur without oxygen and are called anaerobic systems. The anaerobic microorganisms convert the organic matter in the wastewater into biogas, providing renewable energy. On the other hand, we use aerobic, or oxygen-containing biological systems to treat wastewater further and provide the basis for producing EPA-quality drinking water. These advanced treatments involve reverse osmosis and UV disinfection. The combination of anaerobic biological treatment to produce renewable energy, followed by the aerobic biological treatment, followed by reverse osmosis and UV disinfection results in EPA-quality drinking water that goes right back into the winery.”
Maximum Results with Minimum Requirements
Cambrian takes responsibility for designing, building, owning, operating and maintaining the system. Seng said that although their systems are designed for all sizes of wineries, larger facilities have better economies of scale because there’s a certain amount of control system automation that has to be applied, no matter how big the winery is.
“We do our best to do a financial business case that improves the winery’s finances,” said Seng. “We certainly don’t expect a winery to do this if it will cost them more money than their current situation. Sustainability and greenhouse gas emission reduction are important to wineries and vineyards, but we understand the financial impact is equally important. We always strive to make our solution less expensive than the costs that the winery is currently incurring. And the winery only pays if we produce the energy and the quality water.”
“Generally, at minimum, we’ll need about a quarter of an acre, or 10,000 (100×100) square feet,” said Seng. “We come in and lease the area and pay the insurance and property tax. As engineers, we work with the winery to design the space, typically providing above-ground structures inside a building to ensure it’s not an aesthetic issue. We don’t want to put industrial equipment on a site and ruin the aesthetics.”
“There are no further requirements from the winery owner to provide any operational assistance,” he said. “We are autonomous, but we work closely with our customers. Upsets and changes in production are inevitable, and we work with our clients to ensure consistent, quality results. We design the systems to ramp up or down to match the variability in production, for example, during crush. Any biosolids produced from our biological process are our responsibility to manage. In the worst case, it’s moved off-site for disposal. Often, we’ll upgrade it to EPA standards so we can use it on farm fields as a fertilizer amendment. The basis of our systems is to never impact the environment negatively, and we adhere to all EPA requirements in all 50 states just as any organization, city or municipal authority has to do.”
Winery owners can contact Cambrian Innovation directly to see how their WEPA can benefit their winery.
BioMicrobics: Proven Wastewater Treatment in Compact Designs
Based in Lenexa, Kansas, BioMicrobics is a leader in Integrated Water Resource Management, celebrating over two decades in the global water and wastewater industry. One of their many specialties is in wastewater management for wineries. Their BioBarrier® HSMBR® Winery wastewater treatment system uses a High Strength Membrane Bioreactor (HSMBR) designed to handle the unique, fluctuating wastewater loads present in winemaking production.
Joe Rebori is BioMicrobics Inc.’s assistant vice president for inquiries, engineering and regulatory affairs. He spoke to The Grapevine Magazine about the company’s wastewater solutions for wineries of all sizes.
“For wineries, it’s primarily about handling the wastewater derived from the grape processing,” said Rebori. “To a lesser extent, it also includes places like tasting rooms. Winery wastewater has a very high sugar load; in wastewater terminology, it has a high carbonaceous, biochemical oxygen demand. There’s just a lot more sugar per volume measured that has to be broken down by a wastewater treatment system. In fact, it can be more concentrated by a factor of 10 to 20 times as compared to domestic waste.”
BioMicrobics’ BioBarrier® HSMBR® Winery wastewater treatment system uses ultrafiltration membranes predesigned to remove the organic pollutants and suspended solids that wineries produce during their normal day-to-day operations. These systems can handle more fluctuating and higher amounts of organic loads than those in typical wastewater systems.
“During crush is a winery’s highest wastewater load just because of the volume and heavy processing that occurs with the skins, stems and pulp during fermentation,” said Rebori. “Some facilities may use a holding area to take the waste away. Others might still use conventional septic drain fields to dispose of waste if allowed. Those fields usually can’t keep up and need additional on-site treatment before the waste can be disposed of. Treatment with a septic drain field is based on soil characteristics and the capacity of the soil to take on that high organic load of waste.”
That’s where BioMicrobics’ wastewater management experience and expertise can help wineries transform their wastewater into a reusable water resource. First and foremost, Rebori recommends that every winery owner check their local regulations and know upfront what they are allowed to do with their wastewater. Are you allowed to spray it over your land? Can you dispose of it subsurface in septic drain fields? Some states, like California, have different rules that depend on winery size. The larger the winery, the more restrictions on self-management there are.
BioMicrobics Wastewater Systems for Your Winery
“We offer wastewater treatment systems for process waste and optionally combined with all other facility waste like tasting room, sanitary, restaurant and more,” said Rebori. “Sometimes those waste systems are combined, sometimes they’re separate. Our membrane filters treat this type of waste. BioBarrier® HSMBR® Winery Wastewater Treatment System is predesigned to handle the high sugar load that occurs during wine production. The system uses a biological treatment combined with a membrane filtration process. We have a slurry of bacteria to break down all the sugary waste in combination with fine membrane filters containing microscopic openings that physically prevent bacteria and large molecules from passing through. This gives a winery owner a system that turns their wastewater into filtered, disinfected and treated water with no organic content that can be used for irrigation, equipment cleanup, outdoor spraying or fire suppression.”
Regarding spatial requirements, Rebori says that BioMicrobics’ smallest scale projects would include a couple of different tanks with a minimum volume of a few thousand gallons located within a 30×10 foot (300 square foot) space. Most are buried in a greenspace or under a parking area, using traffic-rated tanks to best use the winery’s space while maintaining its aesthetics. Maintenance is minimal, with an eight-year membrane filter replacement schedule and a bi-annual preventative maintenance schedule that includes filter cleaning and blower application checks. Other inspection points include sampling the liquid inside the chamber that reacts with the wine waste where the bacteria are growing to gauge the state and health of the slurry within the system. Solids may occasionally have to be removed, depending on system use.
What to Know Before Getting Started
A BioBarrier® HSMBR® Winery Wastewater Treatment System serves many small wineries that other systems may not target,” said Rebori. “It’s an affordable solution for wineries to produce quality, reusable water on-site using membrane filtration, which has been proven over other technologies to yield the best water quality. A winery owner or their engineer can contact us directly to get started. All we need to know to get started is the annual wine production. That gets us in the ballpark of the system size we’re looking at. Then, we can work with civil engineers on the site plan and the types of tanks needed. Our systems are modular and can manage projected expansion, but the better choice is to install the proper tank upfront and modify the aeration and filtration equipment when needed.”
