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Explain the Ion Exchange water Softening
Softening is usually done using a resin (natural or synthetic long chain chemical with a sodium ion attached). When water containing hardness ions is passed through the resin, the hardness ions (Ca, Mg) exchange with Na ions on the resin (thus the resulting water is free of hardness ions but high in sodium).
When the sodium ions on the resin are exhausted, the resin is regenerated using a brine solution (which replaces all hardness ions attached to the resin with Na ions again) and the resin can be used again.
Stabilised Pavement Layers: Soil stabilisation is the process of treating a soil in such a manner as to alter and improve its properties for use as a pavement layer on sub-gr
Describe the behaviour of pre and post-tensioned members The behaviour of pre and post-tensioned members under imposed loads may be different, especially when the cracking patt
The strap serves the same purpose as the interior portion of a combined footing but is much narrower to save materials. ? The resultant soil pressure is assumed at the centers of b
different components of all types of earth fill dam
A concrete batch plant provided the Design Strength for the engineer's mix design to match the project's specification requirement for a 4000 psi Tremie pump mix. The Water-cement
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