Эколого-геохимическое состояние водных объектов в районе месторождения Грасберг (Индонезия, Западное Папуа) и условия их самоочищения
| Parent link: | Геосферные исследования.— .— Томск: ТГУ № 4.— 2023.— С. 77-85 |
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| Summary: | Заглавие с экрана Представлены результаты оценки эколого-геохимического состояния поверхностных и подземных вод в районе месторождения Грасберг (Индонезия, Западное Папуа) и условий самоочищения поверхностных вод. Выявлены наиболее информативные показатели состояния. Выполнен расчет распределения показателя разбавления сточных вод. Вклад авторов: все авторы сделали эквивалентный вклад в подготовку публикации. Авторы заявляют об отсутствии конфликта интересов. The purpose of the study is a critical analysis of data on the current ecological and geochemical state of the surface and groundwater in the zone of influence of the development of the Garsberg deposit and an assessment of the conditions for their self-purification using the Frolov-Rodziller method. An analysis of the ecological and geochemical state of the surface and groundwater in the area of the Grasberg deposit was carried out, as a result of which it was found that surface water is actually not suitable for domestic and drinking use, and it is advisable to treat groundwater at least 40 % of the time. The most informative indicators of water pollution are the content of suspended solids and sulfate ions. The specific electrical conductivity can also be used, the values of which up to 460 pS/cm indicate the background state of water bodies; above 1,200-1,300 pS/cm - very significant pollution. The ability of surface waters to self-purify in the mountainous part of the Aikva catchment area is quite high due to very high flow rates (more than 2 m/s) and intensive mixing (mixing coefficients of 0.82-0.96). In the plain part (sections of the middle and lower reaches), the mixing coefficients noticeably decrease (to 0.12-0.16, in the mouth area to 0.07), and the dilution factor is characterized by high variability. Accordingly, one should expect a "pulsating" distribution in the middle and lower reaches of the concentrations of dissolved substances. Contribution of the authors: the authors contributed equally to this article. The authors declare no conflicts of interests. Текстовый файл |
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2023
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| Online Access: | https://elibrary.ru/item.asp?id=60210359 |
| Format: | Electronic Book Chapter |
| KOHA link: | https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=673733 |