again, in 2009 and 2012. It was during the last detention that he escaped his captors.

In May 2014, after 20 months hiding in the mountains of Tibet, Golog Jigme fled across the border to India. In January, he arrived in Switzerland.

It is unclear whether his plea to the International Olympic Committee will have any impact. Human rights advocates are not especially optimistic. Beijing is considered to have a good chance of winning the 2022 Winter Games, given its success in orchestrating the 2008 Olympics. Then there is the dismal human rights record of Kazakhstan, which also jails government critics and has been led by the same man, Nursultan Nazarbayev, since 1989.

In a letter released last week, Human Rights Watch called on the International Olympic Committee to ensure thatwith a baffle to force mixed liquor at the maintain circulation. Usually the basin is fitted with a baffle to force mixed liquor at the top of the riser to traverse a major part of the basin releasing spent gas before again descending the downcomer for further treatment.
Influent waste water is introduced at depth into the riser chamber through an upwardly directed outlet arm of an influent conduit. An oxygen-containing gas, usually air, is injected into the influent liquor in the outlet arm of the influent liquor conduit. In addition to oxygenating the waste liquor, the injected gas acts to create an air lift pump which draws the influent waste into the bioreactor riser. Effluent liquor is withdrawn from the riser through an effluent liquor conduit having its