A method of reclaiming a well completion brine solution by using an organic chelant that is capable of discriminating between iron and non-zinc heavy metals; and calcium and zinc. These protrusions can have a top with an apex angle of 30 to 150 degrees and results in a controlled breaking of the substrate and a minimum of loss due to deviations of the crack initiated at the protrusion. Advantageously, the lap bib protects the user’s clothing while the user is eating or the like in an automobile; on a bus, train, or boat; in an airplane; at their desk; or the like. Bistability allows power to be removed from the display between updates but requires active actuation between both states.