Selders Engineering & Contracting
Our Purpose
We have set ourselves the goal to help the planet recover from pollution by focusing on solutions to re-use residue streams from industries and individuals and create a new purpose for this.
Currently the major concern are the greenhouse gas emissions related to growing population, increased welfare and human development all over the world causing additional pollution. Where practical solutions are not at hand, our purpose is to bring solutions where waste and residues can be converted to valuable products and create a new economy which supports the environment.
Technical innovations and alternative markets do help to recover, re-use and recycle organic and biomass residue streams. We are always looking for further integration, new partners and solutions to valorise materials as much as possible.
Circular Solutions
Fast Compositing
If waste is separated, we should benefit the potential and not allow that is mixed again with non-organics later in the waste chain..
ECO Bricks
With eco-bricks we recover plastics from households and landfills and use this as building block for the ‘ECO brick’ to construct building or pavers.
HEMP
Hemp, unlike corn and particularly sugarcane, can be grown in a wide range of geographic locations and climatic conditions.
Sustainable Protein
The FAO estimates that food production needs to increase by 70% by 2050 to feed the world’s growing population, with a big focus on higher quality protein diets in developing parts of the world.
Microalgae
Microalgae are photosynthetic micro-organisms capable of producing high valued nutritional products and/or food from inorganic substances such as CO2.
Fast Compositing
If waste is separated, we should benefit the potential and not allow that is mixed again with non-organics later in the waste chain..
ECO Bricks
With eco-bricks we recover plastics from households and landfills and use this as building block for the ‘ECO brick’ to construct building or pavers.
HEMP
Hemp, unlike corn and particularly sugarcane, can be grown in a wide range of geographic locations and climatic conditions.
Sustainable Protein
The FAO estimates that food production needs to increase by 70% by 2050 to feed the world’s growing population, with a big focus on higher quality protein diets in developing parts of the world.
Microalgae
Microalgae are photosynthetic micro-organisms capable of producing high valued nutritional products and/or food from inorganic substances such as CO2.
Renewable Solutions
Energy production through burning fossil fuels is one of the major contributors to the high levels of greenhouse gasses today. Because of this, industries are now being challenged to reduce their fossil fuel consumption. Therefore, we offer total solutions using agricultural and food residues to provide bioenergy and biofuels and make use of the most efficient technologies. These solutions help to reduce both waste and greenhouse gas emissions. Our solutions provide a full-service, turn-key realization of renewable energy facilities.
Food and Feed Residue Digester
Within our on-site circular solutions we focus on residue streams of the food and feed processing industry that are either small in volume or more difficult to process.
For these more difficult degradable food and feedstock, like horse bedding, high fiber material, mushroom compost etc, we enhance a two stage Anaerobic Digestion system.
Gas Upgrading System
We offer a system for biogas upgrading to a methane-rich gas, also known as biomethane. This unit is able to separate methane from the biogas with a very high efficiency, possibly > 99%, using membranes. After the purification, the quality of the biomethane meets the requirements of natural gas.
Green Supply Chain
Woodchips
Forests are not planted for energy or fuel, but mostly for lumber industry (and pulp & paper) that pays 7x more than energy and fuel market. The stem of these trees should be as large as possible for cutting planks. In order for the trees to grow so large, the forest must be managed to create space and light.
Sourcing
Thinning takes place to make other trees grow taller. Instead of two small trees not growing, one tree can become very large. Larger trees will absorb more CO2 than the two smaller ones. The large trees that are used for lumber will then capture the CO2 for at least 100 years in wooden houses for which it is used.
Fuel Strategy and Development
Our dedicated team works to ensure that your fuel procurement strategy is well-planned from project inception to daily operation. What’s more, with strategically located teams and excellent links to key suppliers, we are perfectly placed to establish and manage fuel resources into assets and ensure security of supply.