Boron is a commonly known drinking water contaminant that affects the reproductability of living organisms. In nature boron appears mostly as boric acid (H3BO3) and borax, (Na2B4O7.10H2O). In aquatic systems, it exists primarily as undissociated boric acid and borate ions. The main sources of it in surface water are urban wastewater containing detergents and cleaning products, industrial effluents and chemical products used in agriculture. When water with high concentration is used for irrigation, its compounds form complexes with heavy metals like Pb, Cu, Co, Ni, Cd etc. and increase the potential toxicity of these heavy metals.
The human body contains approximately 0.7 ppm of it, an element that is not considered as a dietary requirement. Still, we absorb this element from food , because it is a dietary requirement for plants. Daily intake is approximately 2 mg. The amount of this stuff present in fruits and vegetables is below the toxicity boundary.
It can be toxic at very low concentration levels. The concentration lower than 1mg/L is essential for plant development, but higher levels can cause problems in sensitive plants. Most plants exhibit toxicity problems when the concentration exceeds 2mg/L.
Fortunately, boron removal with specific ion exchange resins is very effective. Lanlang ® CH040 is a sort of chelate resin, intended for all borate removal applications including potable water, ultrapure water, and boron removal from concentrated brines.
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