Ecological Systems and Devices Annotation << Back On the protection of natural ecosystems to the development of far east gold deposit T.N. Alexandrova, J.P. Galchenko, L.N. Lipina Comparative analysis of dewatering methods for cyanic drains in processing of gold – containing ores was carried out in the paper, one of the enterprises in Khabarovsk territory was taken as an example. It was ascertained on the basis of performed researches that gold-mining wastes promote creation of lithochemical circles of ecosystems pollution. Application of hypochlorites has an optional negative effect on the environment. It is proved that deployment of sulfureous gas method with simultaneous production of some sulfuric acid is more effective. Key words: dewatering of cyanic drains; pollution of ecosystems; INKO process. Е-mail: IGD@rambler.ru Pp: 2-6