Abstract: Personal data processing system comprising a first device configured to capture image data including facial image data of a human being; the first device further configured to detect the facial image data of a human being, to determine a descriptor including information describing a characteristic of a mimic expression feature and a characteristic of each identification feature of a selectable subset of the plurality of identification features; the first device further configured to provide an obfuscated image with placeholder data replacing the facial image data; the first device further configured to provide the obfuscated image and the descriptor to a second device; the second device configured to perform a replacement of the placeholder data with artificial facial image data corresponding to the descriptor to produce an anonymized image.

Abstract: A connection collar for a water treatment skimmer apparatus includes a body comprising a first material and defining a first circular hole and a bushing comprising a second material disposed within the first circular hole, the bushing defining a second circular hole. The first material is different than the second material and the first circular hole circumscribes and is concentric with the second circular hole, according to various embodiments. The water treatment skimmer apparatus may include a support bar, the connection collar rotatably coupled to the support bar, and a skimmer blade coupled to the connection collar.

Abstract: A connection collar for a water treatment skimmer apparatus includes a body comprising a first material and defining a first circular hole and a bushing comprising a second material disposed within the first circular hole, the bushing defining a second circular hole. The first material is different than the second material and the first circular hole circumscribes and is concentric with the second circular hole, according to various embodiments. The water treatment skimmer apparatus may include a support bar, the connection collar rotatably coupled to the support bar, and a skimmer blade coupled to the connection collar.