Containerised Water Treatment Plants for Irrigation

Containerised Water Treatment Plants for Irrigation

Client's problem and needs

A Chilean avocado producer needed to double their hectares of farmland and the only water available was taken out from a well. The field was in a remote area so any civil works construction would have been very expensive and time consuming to implement. However, the objective was clear: Achieve maximum profits per hectare of avocado.

At AZUD, we know that one of the key factors to achieve optimal production performance is to have low conductivity water because of the low tolerance of the avocado crop. We know that irrigation water with conductivity over 200 µS/cm and over 35 ppm of chlorides may create sodium chlorides or manganese chlorides, that can burn the avocado leaves causing defoliation, which can lead to lose 20% of production.

 

Water Treatment Solution

To solve both problems, AZUD proposed to install a containerized desalination plant, avoiding the need of any civil works and capable of producing water with concentrations below 30 ppm. In this case the water production flow rate was 100 m3/h (440 GPM) and the well water quality was very poor, as it had iron and manganese (2-3 ppm) and very high suspended solids, so a complete pretreatment was needed previous to the reverse osmosis membranes.

In this process, it was very important to eliminate iron and manganese because these elements in concentration above 0.1 ppm can cause mechanical damage to the reverse osmosis membranes, what could increase the salts concentration at the permeated and not meet the water quality needs for optimal avocado crop production.

The complete desalination plant was equipped with remote control access allowing to have 75% less maintenance visits, complete awareness from our engineering office, optimizing diagnosis time, and intelligent preventive and predictive maintenance.

At AZUD we are aware that high water quality is needed to obtain maximum performance of your crop, that is why our mission is to design and propose a cost-effective and optimized water treatment solution.