1 00:00:05,349 --> 00:00:03,590 hi i am coach wakata of the iss 2 00:00:07,510 --> 00:00:05,359 expedition 38. 3 00:00:09,350 --> 00:00:07,520 i am in note 3 of the international 4 00:00:12,070 --> 00:00:09,360 space station 5 00:00:14,870 --> 00:00:12,080 on board the iss we recycle water and 6 00:00:17,029 --> 00:00:14,880 here in note 3 the key component the 7 00:00:19,349 --> 00:00:17,039 water recovery system is located behind 8 00:00:22,390 --> 00:00:19,359 those panels 9 00:00:24,630 --> 00:00:22,400 the water recovery system recycles urine 10 00:00:26,950 --> 00:00:24,640 and washing water used by the onboard 11 00:00:29,269 --> 00:00:26,960 astronauts and cosmonauts to provide 12 00:00:31,429 --> 00:00:29,279 portable water supply 13 00:00:32,870 --> 00:00:31,439 is initially reclaimed from urine using 14 00:00:35,110 --> 00:00:32,880 distillation 15 00:00:37,190 --> 00:00:35,120 this process takes place in a rotating 16 00:00:39,350 --> 00:00:37,200 distillation unit that compensates for 17 00:00:41,510 --> 00:00:39,360 the station's absence of gravity 18 00:00:44,790 --> 00:00:41,520 facilitating the separation of liquids 19 00:00:47,190 --> 00:00:44,800 and gases in zero-g environment 20 00:00:49,110 --> 00:00:47,200 after the distillation phase this water 21 00:00:51,350 --> 00:00:49,120 is combined with the other wastewater 22 00:00:54,470 --> 00:00:51,360 streams and enters the water processor 23 00:00:57,189 --> 00:00:54,480 assembly for treatment 24 00:00:59,510 --> 00:00:57,199 here free gas and solids such as hair 25 00:01:02,950 --> 00:00:59,520 are removed from the wastewater before 26 00:01:04,710 --> 00:01:02,960 the flow enters a series of filter units 27 00:01:07,510 --> 00:01:04,720 subsequently any remaining 28 00:01:09,670 --> 00:01:07,520 microorganisms organic inclusions or 29 00:01:12,230 --> 00:01:09,680 other contaminants are removed by high 30 00:01:14,230 --> 00:01:12,240 temperature catalysis 31 00:01:16,710 --> 00:01:14,240 the resulting water meets the highest 32 00:01:22,870 --> 00:01:16,720 standards for portable use 33 00:01:27,190 --> 00:01:24,870 here onboard the iss we turned