Abstract: Embodiments include but are not limited to modular tensile vegetated wall systems. A module may be comprised of a modular structural frame consisting of not less than two parallel vertically oriented structural members supporting at least one transverse support, wherein a first continuous fabric is folded horizontally over the modular structural frame such that the volume of the folds may be sufficient to contain both plant material and growing medium on the ventral side, and wherein the first continuous fabric has at least one opening to receive planting material, and wherein a second continuous fabric is folded horizontally over the modular structural frame on the dorsal side and partially folded into the cavity or cavities produced by the fold or folds of the first fabric. The vegetated wall system includes integrated irrigation. Other embodiments may be described and/or claimed.

Abstract: In the etching and deoxidizing of aluminum, suppression of aluminum oxyfluoride crystal formation by the incorporation of phosphoric acid into an etchant/deoxidizer solution containing water, ferric sulfate, nitric acid, and HF or fluoride salts.