Water treatment in the greenhouse:
Key to healthy crop growth
For crops to grow healthily in the greenhouse, it is essential that the water used is carefully purified and disinfected. After all, water plays a crucial role in crop growth. We design, produce, supply and install custom-made systems, adapted to your specific needs. In doing so, we ensure that they are fully integrated into your business and work seamlessly with the existing systems.
The water treatment systems we install:
- Ultra-filtration systems
- UV systems (Apollo/Apollo Plus)
- Ozone systems
- Reversed osmose
- Sand filters
- Belt filters
Well water treatment
Reverse osmosis, also known as hyperfiltration, is a filtration technique for removing solid particles such as salts, minerals, fertilisers, viruses and bacteria. Here, membrane is used as an extremely fine filter so that large molecules and chemical molecules remain in the space in front of the membrane and are discharged as wastewater. The clean water on the other side of the membrane can then be reused as irrigation water. For specific regions where the groundwater is high in iron, a de-ironing installation is needed to de-iron the well water.
Drain water treatment
Drainage water is created when irrigating crops where excess water is not directly absorbed by the plants. This water can contain valuable nutrients, but also harmful substances such as excess salts or pesticides. Therefore, it is important to treat drain water. Before reusing the drain water, it is first filtered to remove dirt, residual plant material or other particles. In addition, the drain water is disinfected by a UV installation. This exposes the water to ultraviolet light, which kills unwanted organisms such as fungi, bacteria, nematodes and viruses. This disinfection technique does not use chemicals, which makes it more environmentally friendly and does not affect the composition, temperature and pH of the water. Another method of disinfection is using ozone. Ozone is a molecule composed of three oxygen atoms. It has a strong oxidising capacity, making this molecule very useful for water purification. Indeed, oxidation can kill all kinds of micro-organisms such as bacteria and viruses.
Rain water treatment
Rainwater is a valuable and sustainable source of water, especially in countries with high rainfall such as the Netherlands. In this process, the water is temporarily stored in large open basins or reservoirs so that it can later be used for irrigation. Before the rainwater can actually be used, a belt filter is often used to remove coarse particles such as dirt, leaves and other organic material from the collected rainwater before it is further treated or used. After mechanical filtration through the belt filter, the rainwater is often treated with UV light to kill micro-organisms, such as bacteria, viruses and algae, which can be harmful to plants or water quality. This combination of belt filter and UV treatment ensures that the water is free of both solid contaminants and harmful micro-organisms.
Water treatment of water from other production processes
A less common secondary source is water from other production processes within the company or from other nearby industries. Examples include waste or cooling water from power stations, water from wastewater treatment facilities or condensate water from a CHP. The challenges in treating these water streams depend heavily on the source. Excessive pH or varying composition of main and trace elements are examples of common challenges in treating water originating from other production processes. We can provide tailored support in finding the best solution to purify this specific type of water source.