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BioFiltro USA, Inc. logo




2911 E Barstow Ave M/S OF 144
CA, 93740
United States
(559) 278-4542
Mai Ann Healy

Sustainability in WasteWater Treatment Completes the Full Circle

Biofiltro offers a waste water treatment system that is powered by redworms & micro-organisms in their castings. Our ability is to enable wineries to attain the elusive full circle system and to complete the sustainability challenge.

Through a unique process known worldwide as the BIDA® System, our biofiltration technology is capable of producing water suitable for irrigation from waste water sources contaminated with organic solids and nutrients. Our mission is to bring this food and water securing technology to communities and industries across the United States, so that we are capable of converting our waste streams into valuable and renewable products.


Treatment of waste water can be very expensive, most food processors are discharging to city municipalities that are operating costly and high tech systems. These high costs are passed down to dischargers, eating away at company profits. Others are using technologies that can be unsigthty for wine tasting customers and spoil beautiful vista views of vineyards. With Biofiltro you will have a beautiful structure that will blend cohesively with your landspace.

The BIDA System is applicable for both pre-treatment prior to municipal discharge, or provide complete treatment for those without a city hook up. This action can eliminate surcharges, fees, regulatoy penalties, and headaches. Its a win-win situation for everyone.


We're not here to sell you a technology and walk away, we are here to stay, ready to grow with you at a moment's notice with our modular system. Once you purchase a BIDA, BioFiltro joins you for 10 years or more to manage and maintain the technology, ensuring maximum compliance with regulations. Eliminate headaches related to regulations and other complex treatment technologies, BioFIltro allows you to focus on what you do best: making quality wine for all of us.


Complete the Full Circle. Our sustainable and mother nature powered technology produces three valuable by-products: irrigation-ready water, organic fertilizer (worm castings), and animal protein feed (redworms). BioFiltro harnesses your liquid wastes, reusing them to irrigate/fertilize vineyards and feed livestock. For those located in Sonoma County, we hope to work with you to complete the SCW Sustainability Challenge by 2019!

Can Fetzer’s Worms Save Water? Yes!
Can Fetzer’s Worms Save Water? Yes!
Sustainability pioneer Fetzer Vineyards announces completion of its revolutionary BIDA® wastewater treatment system, which relies on billions of worms to clean up the winery’s process water. The California vintner’s worms — which work in tandem with microbes to digest contaminants in greywater — are at the heart of a natural system from BioFiltro that uses 85% less energy to clean winery water, regenerating up to 17 million gallons annually for re-use in vineyards and landscaping. The new system is one of a number of Earth-friendly innovations Fetzer Vineyards has recently introduced in an effort to preserve vital resources and find ever-more-efficient ways to put planet conservation on an even playing field with premium winemaking.
BioFiltro Sustainable Wastewater Treatment Technol
BioFiltro Sustainable Wastewater Treatment Technol
Wastewater Treatment

News Archive

Can Fetzer’s Worms Save Water? Yes!
26 April, 2017


This Earth Day, sustainability pioneer Fetzer Vineyards announces completion of its revolutionary BIDA® wastewater treatment system, which relies on billions of worms to clean up the winery’s process water. The California vintner’s worms — which work in tandem with microbes to digest contaminants in greywater — are at the heart of a natural system from BioFiltro that uses 85% less energy to clean winery water, regenerating up to 17 million gallons annually for re-use in vineyards and landscaping. The new system is one of a number of Earth-friendly innovations Fetzer Vineyards has recently introduced in an effort to preserve vital resources and find ever-more-efficient ways to put planet conservation on an even playing field with premium winemaking.

To celebrate the BIDA® system’s completion, Fetzer Vineyards created a video that showcases how the worm system works. The vintner also celebrated the system’s completion at an annual employee Earth Day celebration April 20th at its certified ZeroWaste, CarbonNeutral® winery in Hopland, California. In addition to feting the launch of the worm-powered system, Fetzer Vineyards employees enjoyed a pie baking contest and planted an employee garden, organic produce from which will nourish many of their families throughout the year. “From our worms to our winemakers, we have an incredible team that comes together to create innovative ways to make great wine while giving back to the Earth,” said Josh Prigge, Fetzer Vineyards’ Director of Regenerative Development. “Earth Day is a chance for us to celebrate and remember what’s most important – a healthy environment and healthy communities.”

California winery hires earthworms to clean up its wastewater
09 August, 2016

Next time you open a bottle of merlot or chardonnay, be sure to thank the vintner. And you might want to toast the worms, as well.

Everyday earthworms are the latest solution to a thorny problem that most wine drinkers never consider: wastewater disposal.

Producing a single glass of California wine may require as much as...  READ FULL ARTICLE HERE.

Fetzer Vineyards Announces Installation of Regenerative BioFiltro BIDA® Water Filtration System
06 April, 2016

Leading Regenerative Business Is First American Winery to Use Innovative Water System at Scale

Fetzer Vineyards 1968Fetzer Vineyards, a leader in regenerative winegrowing, is revolutionizing the way U.S. wineries conserve water, announcing today that it will install the BioFiltro BIDA® System at its Mendocino winery. In doing so, Fetzer Vineyards will become the first American winery to use the innovative, closed-loop biological wastewater treatment system to process 100% of its winery wastewater. Powered by billions of earthworms working rapidly in concert with beneficial microbes, the BIDA® System will begin processing Fetzer Vineyards’ wastewater during the 2016 harvest season, accruing energy savings up to 85% over current wastewater treatment technologies and optimizing water conservation measures in support of the fight against climate change.

“It’s essential that we constantly ask ourselves if there is a better, more efficient and more regenerative way to approach our business, including the way we work with water,” saidGiancarlo BianchettiCEO of Fetzer Vineyards. “BioFiltro offers a compelling process that aligns with our business goals as well as our overarching objective to leave the world a better place than we found it.”

Fetzer Biofiltro short

See full infographic

Implementing the BioFiltro BIDA® System

BioFiltro’s patented BIDA® System is a passive aerobic bioreactor that catalyzes the digestive power of microbes and selected species of red earthworms to naturally remove up to 99% of contaminants from Fetzer Vineyards’ wastewater, in as little as four hours. The chemical-free system consumes significantly less electricity than traditional wastewater treatment technologies like aeration ponds, which require constant electricity to pump and circulate water. The BIDA® System works efficiently year-round in spite of seasonal fluctuations in wastewater flow like those seen in the wine industry, and generates compost-enhancing castings from worm digestion, returning nutrients to the soil.

Working with Worms to Fight Climate Change

Global studies show that water scarcity and water stress are increasing, and as much as 15% to 35% of human withdrawals of water for agriculture are considered unsustainable.1Achievement of climate change-related commitments like those made at last year’s Paris Climate Conference (“COP21”) will require that businesses strategically manage their water footprints for maximum efficacy while mitigating negative impacts. Natural, regenerative solutions such as the BIDA® System offer a new paradigm for water treatment systems, delivering closed-loop mechanisms that efficiently process wastewater on site and restore it to beneficial use, without significant energy output or emissions.

Innovating Towards Water Positive Operations

“Innovating to naturally manage our water footprint is an important step in our journey to become Water Positive, essential to our goal of Net Positive operations by 2030,” saidJosh PriggeDirector of Regenerative Development for Fetzer Vineyards, who recently advocated for carbon-neutral winegrowing practices on a global scale at COP21. “With this new system we’ll treat some 15 million gallons of water a year, with significant efficiency gains—and bring things full-circle with enhanced compost for our soils and clean water for vineyard and landscape irrigation. It’s a win-win.”

Research shows that a majority of global consumers, and especially Millennials, support companies that are committed to minimizing environmental impacts and that prioritize sustainable approaches to operations.2 To share more about its water initiatives, Fetzer Vineyards developed a new page on its website containing facts about agricultural water use and details about the company’s water policy support. Visit for more on Fetzer Vineyards’ water initiatives, including its adoption of BioFiltro’s BIDA® treatment system and its support for water conservation research and advocacy through collaborations with groups like the Beverage Industry Environmental Roundtable(BIER) and Ceres’ Connect the Drops, both of which were commended for their water policy efforts at the White House Water Summit on Building a Sustainable Water Future in the United States on March 22, 2016.

1 Source: World Business Council for Sustainable Development, Water Facts and Trends
2 Source: 2015 Nielsen Global Corporate Sustainability Report

07 March, 2016

BioFiltro’s dynamic biological reactor catalyzes natural processes to aptly and rapidly handle high BOD wastewater streams. With the capability to remove up to 99% of BOD & TSS without the use of chemicals or any sludge generation, our patented BIDA® systems deliver irrigation grade water in 4 hours. Wineries can reutilize this water onsite for vineyard or landscape irrigation through drip systems without further treatment. The only byproduct of our patented system is nutritious casting (worm humus) which can be applied back onto the vineyard.

4 Hour Process Result at Constellation Brands (California). Plant Effluent - After Rotatory Screen - After BIDA® System

From Left to Right: Winery Effluent – After Rotatory Screen – After BIDA® System

Highly Energy Efficient

BioFiltro’s BIDA system utilizes up to 85% less energy to achieve the same, if not higher, water quality parameters than traditional baseline technologies. As such, clients are not only able to greatly reduce their annual energy expenditure, may also receive incentives, rebates, and/or recognition for adapting a low energy yet highly efficient wastewater technology.

Sustainable Winemaking Practices

By transforming waste into beneficial products, BioFiltro facilitates your capability of exceeding sustainability metrics and zero waste goals. BioFiltro’s clients showcase their BIDA® systems to plant visitors as it embodies their commitment to forward thinking practices while also providing demonstrating a cost effective, efficient and natural solution.

Seasonal Loadings

Seasonal wineries pose a challenge to traditional biological wastewater treatment technologies that depend on constant influent to deliver solid results. In the case of BioFIltro, more than 30 seasonal clients have entrusted their wastewater management to us as our vibrant system can handle months of inactivity without any negative impact on system removal efficiencies. Our largest facility is a 2 million gallon per day (MGD) fruit processor that operates only 4 months each year.

Designed For Your Needs

BioFiltro’s team of engineers custom design and build each system in accordance to the flow, water quality parameters, and needs of our clients. With the ability to install systems of all sizes, BioFiltro provides cost competitive solutions for small boutique wineries to major million gallon per day facilities.

Example Design Flow for Winery

BioFiltro is breaking ground on their first Dairy System in the Central Valley
08 October, 2014

In Partnership with the non-profit Sustainable Conservation, and with funding from the USDA-NRCS, Biofiltro USA is building its first California Dairy System at Fanelli Dairy Farm in Hilmar, CA. The System will then be studied for its impact on the dairy effluent, and evaluated closely for reductions in the key contaminant of Nitrates. Significant Nitrate reduction has already been demonstrated at the Biofiltro Fresno State Pilot Project System. The conclusions of the year long 2015 tests will present proof for support of Biofiltro adoption throughout the Dairy Industry. More news to come soon with final photographs of the completed system within 2 months.


Constellation Brands Pilots Innovative BioFiltro Wastewater Treatment System in Madera, CA
19 September, 2014

Winery WW Before and After Biofiltro Treatment

 Before And After Biofiltro Treatment of Winery Waste Water

Constellation Pilots Innovative BioFiltro Wastewater Treatment System

By Wine Industry Advisor September 18, 2014

Constellation plans to put millions of earthworms to work in 2015. Don’t worry, they won’t be making the wine, they’ll be cleaning the wastewater from winery operations. BioFiltro is currently running a trial of their BIDA® System at Constellation Brands’ winery in Madera, California, and if all goes as expected, a new BioFiltro installation with a capacity of 1,000,000 gallons per day will be operational in the near future.

“We’ve installed a small trial system at the winery to run for 6 months,” says Sanjar Taromi, Chief Marketing Officer of BioFiltro, “it’s a chance for Constellation to ensure that the system can achieve their goal of at least 80% reduction in BOD (Biochemical Oxygen Demand). So far the results match our typical rate of 90% to 95% reduction in BOD.”

“The BioFiltro team is very innovative and understands the variability of winery operations, which has made our partnership thus far very productive,” says Wendy Garcia, Manager of Environmental Engineering Services for Constellation.

A BioFiltro system is already in operation at the Fresno State dairy unit, but Constellation could be the first BioFiltro installation at a California winery. However, the earthworm powered wastewater treatment system has been reducing BOD and TSS (Toal Suspended Solids) at wineries in Chile for some time.

“Constellation had staff working in Chile who visited some of BioFiltro’s commercial installations at wineries,” explains Garcia, “the feedback was positive, so we went forward with this pilot test.”

The system works by sprinkling wastewater into the BioFiltro where the earthworms reside in a layer of wood shavings. The worms eat the organic matter trapped by the shavings and produce castings with bacteria that break down dissolved contaminants in the water. The whole process takes about 4 hours for the waste water to be converted into water available for irrigation of vineyards.

“The BioFiltro typically has a smaller footprint than aeration ponds and consumes less energy,” says Taromi, “and in addition to allowing the winery to reuse the wastewater, the worms also produce castings that can be used as compost.”

A concern for Constellation is the amount of caustic chemicals that most biological treatment systems require to neutralize the acidic winery wastewater before treatment. These add big operational costs and the salts negatively impact the environment.

“Salinity build-up in the environment is a severe problem in the San Joaquin Valley and Constellation is always striving to find ways to reduce salinity impacts and improve operational sustainability,” says Garcia, “So far, the results are very good. It appears that the BIDA BOD reduction is very efficient, even at slightly low pH. We look forward to finishing testing and summarizing results around December.

BioFiltro will be showcasing their system to the wineries of Napa and Sonoma at the North Coast Wine Industry Expo in Santa Rosa on December 4th, and a successful trial through the crush season at Constellation will be an important stepping stone into the wine country market. The drought and the continuous drive for more sustainable practices in the wine industry will likely prove to be great motivators for BioFiltro adoption as well.



04 September, 2014

A short video describing and demonstrating the Biofiltro waste water treatment system at Fresno State University Dairy. Biofiltro is also piloting its proven system at a large winery in Madera, CA. With a 1,000,000 Gallon Per Day plant planned for 2015.