WTT Archives - MECBIO

Giving Waste Resources New Life

We want to empower communities to maximize the re-use of nutrients and preserve finite natural resources

Resources are scarce and valuable. We aim to maximize the re-use of nutrients in the food chain and utilize their renewable energy potential. We use advanced technology and engineering to reduce greenhouse gas emissions, and convert organic waste into new resources, so we can utilize their renewable energy potential.

We have the expertise to provide our customers with an array of waste treatment technology solutions to deliver the most optimal results, based on their unique needs. We’ve spent years strengthening our technologies so that they are as efficient and customizable as possible. All of our installations include one, or a combination of the following technologies.

Design + Build

Every waste treatment project we work on is unique.

We are front-runner in innovation for organic waste treatment. Our technology is state-of-the-art and focused on sustainabil ity. We have designed and built over 130 waste treatment facilities all over the world. We have the epertise to provide our customers with an array of waste treatment technology solutions to deliver the most optimial results. Our turn-key designs are effecient, with standardized concepts, but also customizable and incorporate the newest technology.

Our Technologies

In-Vessel Compositing

Composting made easy

WTT designs in-vessel technologies, this means that the composting process takes place in completely closed (concrete) vessels; so called tunnels. Over the past 25 years WTT has built over 1300 tunnels. One of the major advantages of composting in tunnels is that it is fast. The tunnels are individually controlled with forced aeration to process organic waste into compost. Each composting tunnel has its own aeration system, water and heating modules and is accompanied with the required instrumentation. Process and odour control is optimal, resulting in homogenic pasteurizations and degradation of organics. The whole configuration is included into a skid for faster installation, easier transport to site and simplified commissioning. The complete tunner system is remotely actuated and controlled by a SCADA visualization system. This allows site operators to set process parameters to be able to adapt to different waste streams and seasonal fluctuations.

Check our projects

Anaerobic Digestion

From Organic Waste to Renewable Energy

Anaerobic Digestion (AD) creates biogas from organic waste streams. Using a Combined Heat and Power unit (CHP) the biogas can be converted into renewable heat and power. Alternatively, by implementing and using a biogas upgrading system, the biogas can be turned into biomethane capable of fueling vehicles or injecting into the Natural Gas grid to render Renewable Natural Gas (RNG).

We design and build AD systems based on our customers requirements, analyzing the waste streams to provide the optimal solution using wet AD, dry AD or a combination of both. Our dry AD batch system processes waste in-vessel without oxygen to produce biogas, while wet AD systems use digester tanks full of bacteria to break down the organic waste producing methane. Our experience in organic waste sector allows us the flexibility to create the ideal process to capture the most benefit from the feedstock.

Bio-Drying

Turning Moisture into Energy

Bio-drying is comparable to composting in terms of aerobic degradation, the main difference lies in the retention time, and thus the final utilization and product obtained. Composting produces compost that can be both a nutrient source and a conditioner in agricultural applications. Bio-drying reduces the moisture content of waste to increase its caloric value. In WTT’s design, residual process heat can be reused and then transported via a hot water circuit to accelerate the drying of the waste. By using the heat from hot water into the air the moisture of the waste will be removed more efficiently and saves energy.

Odour Abatement

Eliminating Odours, Enhancing Environments

Our engineers can meet the most stringent odour abatement criteria. We design each odour abatement system specifically to treat odorous compounds and ensure ideal dispersion to the atmosphere. Our facilities are designed to be air-tight and in a constant state of negative pressure. The aerobic systems within the design use the balance-of-plant air to process the organic steams, which allows for continuous air handling and superior process control. Based on local legislative requirements the system can be designed using chemical scrubbers, humidification, dust removal, heat exchangers, cooling towers, booster fans and bio-filters – all to ensure we are being a responsible neighbour.

Enquire Today

Partner with us in building a sustainable future. Get in touch with us to arrange an on-site demonstration, make an enquiry, or ask for more information.