Process for removing of arsenic, antimony, selenium, molybdenum, wolfram and manganese oxo-anions from waters

摘要

The degree of oxidation of arsenic, antimony, selenium, molybdenum, wolfram and manganese is decreasing by a reduction agent in an acid medium and the products of reduction are captured by coagulation or sorption. The acid medium, the reduction agent and the coagulation agent can be added at the same time, where electrochemically produced hydrogen can be used as a reduction agent having simultaneous acidifying effect.