Winery wastewater is organic-rich, acidic and intensely seasonal, and must be managed and treated correctly. Washing and rinsing of tanks, barrels, presses and bottling lines carries yeast, sugars, lees, alcohol and cleaning chemicals into the drain — pushing COD and BOD₅ well above ordinary sewage, with sharp swings in volume and pH across the year. ClearFox® designs, manufactures and installs turnkey winery wastewater treatment systems that solve that problem: modular, containerized, and engineered around your production calendar, your discharge route and your budget. As a European market leader in food and beverage wastewater treatment, we’ve delivered systems to wineries around the world.
The problem — why winery effluent costs you money
Most winery wastewater comes from cleaning, and its character changes dramatically through the year — heavy during harvest and vinification, much lighter off-season. Left unmanaged, that creates three concrete business risks:
- Pollution surcharges. Discharge to the public sewer with too high a COD, BOD₅ or solids load and your water authority will bill you for it — often heavily, and every single month.
- Compliance and permitting risk. Direct discharge to a river, stream or for vineyard irrigation requires you to hit strict effluent limits — and to cope with pH swings and seasonal load. Miss them and you face penalties, permit problems, or a forced shutdown.
- Wasted water and rising costs. Freshwater is a growing cost line and a growing sustainability expectation. Discharging water you could have reused is money down the drain.
The pollutants driving all of this include dissolved organics (sugars, alcohol, acids), organic solids (lees, seeds, skins) and cleaning chemicals. Helpfully, winery wastewater has a low COD:BOD₅ ratio — typically 1.3 to 2.0 — which makes it especially well suited to biological treatment, exactly what we build around.
For the full technical background on where this load comes from, see our deep-dive guide: Winery Wastewater Management: Sources and Characteristics
The solution — treatment systems built around your discharge route
The right solution for your project depends entirely on where your treated water is going. We build solutions for all the main routes:
Discharge to sewer (indirect)
The goal here is to cut your COD, BOD₅ and solids enough to eliminate — or sharply reduce — pollution surcharges. Screening removes solids such as stems and skins, then a DAF (Dissolved Air Flotation) stage reduces the organic load before the municipal network. Discharge to sewer can also potentially be handled with biological treatment alone with pH adjustment and nutrient adjustment where necessary.
Direct discharge (to a watercourse or vineyard irrigation)
This demands the highest purification level. Because winery effluent is so biologically treatable, FBBR (Fixed Bed Biofilm Reactor) technology is the natural core of the solution, following screening and DAF, to meet direct-discharge limits reliably. Lower effluent values can be achieved with our range of tertiary treatment options such as ultrafiltration, disinfection and nutrient reduction.
On-site reuse
Where you want to recover water for cleaning and process use, we add ultrafiltration or reverse osmosis after biological treatment to produce high-quality, non-potable reuse water — cutting your freshwater bill and your environmental footprint at the same time.
Want to understand how these systems are sized and configured? See: Winery Wastewater Treatment Plant Design
The technology we supply
Every ClearFox winery system is assembled from proven, in-house process modules — so you get the exact treatment chain your effluent needs, and nothing you don’t:
- Screw Screen — removes stems, skins and coarse solids before they clog your system.
- Dissolved Air Flotation (DAF) — reduces suspended solids and organic load in a compact footprint.
- Fixed Bed Biofilm Reactor (FBBR) — a natural, chemical-free biological process with very low operating costs, ideally matched to the low COD:BOD₅ ratio of winery effluent.
- Lamella Clarifier — compact, high-efficiency separation of settleable solids after the biological stage.
- Containerized Systems — the whole treatment chain, pre-installed and factory-tested inside an ISO shipping container.
Why wineries choose ClearFox®
Modular, containerized, and scalable
Our systems arrive pre-assembled, factory-tested and ready to connect — inlet, outlet and power. Installed in ISO sea containers, they suit outdoor installation, fit anywhere on the estate with minimal space, and scale as your output grows, so no investment is ever wasted. They can also be easily relocated if you ever move premises.
Built for seasonal operation
Winery flow swings enormously between harvest and the off-season. Our systems are designed to handle that variability and the pH swings that come with it, holding performance stable year-round.
Low CAPEX and OPEX
No extensive civil works or permanent buildings. Biological treatment by natural processes means minimal chemical and running costs, and low-maintenance operation.
Guaranteed compliance
We give a process guarantee that your system will meet the required discharge values.
Built in Germany, proven worldwide
An ISO 9001 and ISO 14001 certified manufacturer with a track record you can rely on:
- 40,000+ treatment systems delivered
- Installed in 50+ countries
- Treating 25 million litres of wastewater every day
Rental options available
Need a short-term or harvest-season solution — for a trial, a seasonal peak, or a bridge before a permanent install? Ask about our rental and leasing service.
Proven across the food and beverage sector
We’ve engineered seasonal, organic-rich wastewater solutions for demanding food and beverage processes worldwide, combining screening, DAF and biological treatment into robust, modular systems.
Browse our work: ClearFox Projects — or see the wider Food & Beverage sector.
How we work — from sample to commissioning
- Wastewater analysis. Send us a sample. Our in-house laboratory analyses effluent from any sector and returns a detailed report — analysis to non-binding quotation within one week, anywhere in the world.
- System design & engineering. We size the treatment chain to your flow, load, seasonal peaks and target discharge values.
- Manufacturing. Built and factory-tested in Germany.
- Installation, commissioning & training. Fast on-site setup and hands-on training for your team.
- Operation, maintenance & remote monitoring. Ongoing support and external access to keep performance on spec.
See our full service offering: ClearFox Complete Services
Ready to plan your winery wastewater treatment system?
Whether you’re building new, upgrading an existing plant, expanding output, or switching from indirect to direct discharge, our engineers will find the right solution for your winery. Send us your wastewater parameters and we’ll come back with a tailored, cost-effective proposal.
FAQs
How do I stop paying pollution surcharges on my winery wastewater?
Surcharges are triggered when your COD, BOD₅ or solids load into the public sewer exceeds the authority’s thresholds. Screening plus a DAF pre-treatment stage reduces that load so you only discharge what you’re willing to pay for, and often removes surcharges entirely.
Why is winery wastewater well suited to biological treatment?
It has a low COD:BOD₅ ratio (typically 1.3–2.0), meaning the organic load is highly biodegradable — which makes FBBR biological treatment especially effective and cost-efficient. Some winery wastewater may also need pH adjustment and nutrient adjustment included.
Can the system cope with the harvest peak and off-season lull?
Yes. Winery flow varies sharply through the year, and our systems are designed to handle that variability — and the pH swings that come with it — while holding performance stable.
Can a ClearFox system treat winery wastewater to direct-discharge standard?
Yes. Combining screening and DAF with FBBR biological treatment meets direct-discharge limits, and tertiary steps such as ultrafiltration or nutrient reduction can be added where lower values are required.
How much space does a system need?
Our containerized systems are pre-installed inside ISO containers, suit outdoor installation, and can sit anywhere on the estate. Only the inlet, outlet and power need connecting on site.
Can I reuse the treated water?
Yes — by adding ultrafiltration or reverse osmosis after biological treatment we produce high-quality water suitable for non-potable reuse such as cleaning and process water, reducing your freshwater consumption.
