This study presents the results of several measurement campaigns conducted in Lake Idro, whose water column is divided into a mixolimnion (~0\u201340 m) and a monimolimnion (~40\u2013124 m). The hydrochemical data highlight two main peculiarities characterizing the meromixis of Lake Idro: a) the presence of a high manganese\/iron ratio (up to 20 mol\/mol), and b) the absence of a clear chemocline between the two main layers.<\/p>\n","protected":false},"author":93,"featured_media":0,"comment_status":"open","ping_status":"closed","template":"","meta":{"_acf_changed":false,"footnotes":""},"tags":[],"targets":[],"pubblicazioni_tipologie":[773],"class_list":["post-196385","pubblicazioni","type-pubblicazioni","status-publish","hentry","pubblicazioni_tipologie-isi-article-en"],"acf":{"projects":{"ID":191041,"post_author":"464","post_date":"2024-07-10 15:54:35","post_date_gmt":"2024-07-10 13:54:35","post_content":"","post_title":"Storage systems, including electrochemical and power-to-gas, and their interfaces with grids","post_excerpt":"The more ambitious the decarbonisation goals become, the more important energy storage is. The increasing penetration of non-programmable renewable energy sources (NPRESs) and the growing electrification of transport lead to a number of challenges related to the stability and flexibility of the national electrical system. The need to store excess renewable energy for later use where and when it is needed becomes evident.","post_status":"publish","comment_status":"open","ping_status":"closed","post_password":"","post_name":"storage-systems-including-electrochemical-and-power-to-gas-and-their-interfaces-with-grids","to_ping":"","pinged":"","post_modified":"2024-08-09 15:49:26","post_modified_gmt":"2024-08-09 13:49:26","post_content_filtered":"","post_parent":0,"guid":"https:\/\/www.rse-web.it\/progetti\/storage-systems-including-electrochemical-and-power-to-gas-and-their-interfaces-with-grids\/","menu_order":0,"post_type":"progetti","post_mime_type":"","comment_count":"0","filter":"raw"},"order_posts":"","dont_show_search":false,"related_posts":false,"dont_show_hompage":false,"show_on_slider":false,"single_post_data":{"titolo_spot":"","post_content":"
The high manganese content contributed to the formation of a deep turbid layer dominated by stable manganese (40\u201365 m), which surrounds the redoxcline (~ 45\u201355 m) in the upper monimolimnion. This turbid layer in Lake Idro is described for the first time in this study. The article examines the distribution of dissolved and particulate forms of transition metals (Mn and Fe), alkaline earth metals (Ca and Mg), and other macro-constituents or nutrients (S, P, NO3-N, NH4-N), discussing their behavior at the redoxcline, where the main transition processes occur. Field measurements and theoretical considerations suggest that the deep turbid layer is formed by a complex mixture of manganese and iron compounds, with a prevalence of Mn(II)\/Mn(III) in various forms, including dissolved, colloidal, and fine particles, which give the turbid layer an opalescent white-pink hue. Bacterial populations show clear stratification, with the upper aerobic layer dominated by the heterotroph Flavobacterium sp., the turbid layer hosting a specific microbiological pool dominated by Caldimonas sp., and the deeper anaerobic layer dominated by the sulfur-oxidizing and denitrifying Sulfuricurvum sp.. The occurrence of an abnormal surface coloration of the lake in August 2010 is also noted.<\/p>\n","scarica_file":false,"link_estreno":[{"link_text":"Download ISI Article","link":"https:\/\/www.sciencedirect.com\/science\/article\/abs\/pii\/S0048969721038158"}],"button":{"text":"","link":""},"referente_group":false,"data_emissione":"2021-11-15","autori":"P. Cristiani, M. Balordi (RSE S.p.A.), G. Tartari, D. Copetti, F. Salerno (Water Research Institute, National Research Council), A. Franzetti, B. Leoni (University of Milano-Bicocca), S. Thakuri (Tribhuvan University), G. Chiarello (University of Milan)","destinazione":"Science of The Total Environment, Vol. 795, November 15, 2021, 148743","rif_rse":"21012740"},"satellite_post_url":""},"yoast_head":"\n