There's the old steam distillers. I don't know how long they've been around. A couple of centuries at least. They're slow as sin and require a lot of fuel. But, they're dead nuts simple and will remove anything with a boiling point higher then plain water.

Commercial versions:

http://www.amazon.com/Prime-Water-Universal-Purifier-Distiller/dp/B00X61S95I/ref=pd_sim_sbs_469_3?ie=UTF8&dpID=51XgkUJhbDL&dpSrc=sims&preST=_AC_UL160_SR112%2C160_&refRID=16HKFDGJS9KPGN1QE1KG

http://www.amazon.com/Survival-Still-Non-Electric-Stainless-Distiller/dp/B00DIRZPM0/ref=pd_sim_sbs_469_2?ie=UTF8&dpID=41FbfBdqIoL&dpSrc=sims&preST=_AC_UL160_SR160%2C160_&refRID=16GWD901PEFZCNHG27B0