A wearable dialysis system comprising:a) a wearable dialyzer that removes solutes from impure blood into dialysate；b) a wearable pump that pumps blood and dialysate through the dialyzer；c) a wearable dialysate regeneration system comprising urease in fluid communication with the dialysate； andd) a wearable degassing device in fluid communication with the dialysate regeneration system, the degassing device comprising a dialysate degassing tube having an external wall exposed to atmosphere, the wall comprising a material that is gas permeable and liquid impermeable for each orientation of the degassing device.
