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Carbon neutral target with anaerobic waste biodigesters

On World Water Day, the Sigma Group reiterates its commitment to minimize its carbon footprint and its contribution to the environment and sustainability.

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Our SiGMADAF and SiGMAMBR allow industries from the most varied sectors to implement solutions for the treatment of wastewater so it can later be reused.

Aware that our activity - on the one hand - benefits the sustainability of water resources, but - on the other hand - large amounts of energy are used to carry it out, we are currently developing several projects for waste biodigester plants.

These biogas plants will contribute to minimizing our carbon footprint until neutralizing it, our strongest purpose with the environment.


Carbon Neutral Target

Our goal is to generate as many kilowatts (kW) of renewable energy, like those consumed by all the DAF and MBR equipment installed by us, in order to achieve neutrality in the carbon footprint of our company in 2022.

We will achieve carbon neutrality when we emit the same amount of carbon dioxide (CO2) into the atmosphere from which we have removed due to the activity of each of the equipment that we have installed, which leaves a zero balance, also called the zero footprint of carbon.

From SIGMA Group: AGUASIGMA and SIGMADAF we want to contribute to the commitment of the European Union to advance towards carbon neutrality in the second half of the 21st century, assumed within the framework of the United Nations Conference on Climate Change held in Paris in 2015.

How will we do it? Developing biodigestion plants for waste that generate as much energy as that consumed by the implanted DAF and MBR equipment.

How a biodigestion plant works - biogas

Biodigestion, also known as anaerobic digestion, is a biological process that takes place when organic matter decomposes into bacteria due to the absence of oxygen, releasing methane gas or biogas.

This biogas is captured in order to produce electricity.

The organic matter that can be used for the production of biogas can be of plant or animal origin such as manure.

To capture the biogas released from decomposing organic matter, this biological process must be carried out in a biological reactor. That is, in a hermetically sealed and waterproof container.

It is here where the SIGMA Group through its companies intervenes. In the development, manufacture, implantation, and start-up of bio-digestion plants for organic waste for the use of biogas in energy production.

Benefits of using industrial biodigesters

The implantation of anaerobic biodigesters in industrial companies allows to:

  • Contribute to improving the carbon footprint of the company.
  • Environmental circular objective (Energy, Water, waste).
  • Reduce operating costs, translated into energy savings and sludge generation.
  • Sustainable economy, interaction with local actors in the primary sector.

Biodigestion plant in a frozen vegetable industry

Aerial view of the frozen vegetable industry with the anaerobic biodigester

SIGMA GROUP designed and installed a wastewater treatment plant in a large manufactory where the production of frozen vegetables is its main activity.

The biggest challenges for the client, in addition to achieving water quality with potential for reuse in agricultural irrigation, were controlling operating costs and the environmental impact of operating the treatment plant itself.

To resolve these constraints, SIGMA GROUP designed a process that combines SIGMADAF flotation technologies, aerobic water treatment and anaerobic biodigestion of water and waste.

One of the main peculiarities of this installation is that it does not operate pretreatment for the separation of suspended solids.

All the generated and discharged water load is treated directly in the anaerobic biodigester, increasing the biogas generation, eliminating the use of chemicals in the pre-treatment and reducing the production of residual sludge.

To fulfill our objective, we need companies that, like us, want to commit to the environment and minimize the footprint of their activity.

If you want your company to develop a waste biodigestion plant. Write to us! We will assess the viability of your project without any commitment.