Dalsem products

Fresh water is a scarce resource in many parts of the world. Water storage is essential for every horticultural company, whether in the form of rainwater storage, drainage water storage or the storage of recirculation water, since sufficient irrigation water must be available round the clock. It is also important to create a closed-loop cultivation system which allows the water to be recirculated.

Decontamination of drainage water is an important operational process in every greenhouse. Since the irrigation water is fundamental to crop growth, it must be of a high quality. Decontamination must provide sufficient protection against the spread of harmful microorganisms such as bacteria, viruses, moulds and nematodes in the recirculation of drainage water since many such microorganisms can cause serious plant diseases with potentially disastrous financial consequences.

If the climate is both hot and humid, mechanical cooling is an option. In this case, electricity is used to cool water which is then transported to, and passed through, heat exchangers. This reduces the relative humidity which in turn reduces the temperature of the air in the greenhouse.