نتایج جستجو برای: phreeqc

تعداد نتایج: 182  

2012
ELENA BIRSAN ELENA DIACU

Abrud river is an aquatic ecosystem exposed to anthropogenic influences exerted by long-term mining. This study examines the level of copper concentrations by assessing both total copper content and ionic forms in surface waters and sediments. These components were studied in 10 control sites located in a section of river that has been exposed to acidic mine water spills and leaks. The partitio...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شیراز - دانشکده مهندسی شیمی 1391

یکی از مشکلات چاههای تزریقی گاز، تشکیل رسوب می باشد، به گونه ای که پس از مدتی، راه عبوری گاز به طور کامل بسته می شود، چاههای تزریق گاز مارون و کوپال نیز از این اصل مستثنی نیستند، لذا برای ارائه راهکاری مناسب برای جلوگیری از این مشکل، تعیین نوع مکانیزم تشکیل رسوب، ضروری می باشد و با توجه به اینکه گاز تزریقی در چاههای مارون و کوپال در شرایط فوق بحرانی تزریق می شوند، لذا پیش بینی می شود که یکی از ...

Journal: :Journal of Cleaner Production 2021

The near zero liquid discharge (NZLD) approach, by recovering water and dissolved valuable salts, is the most attractive clean solution for valorisation of brines from seawater desalination reverse osmosis (SWD-RO) plants. In this perspective, a key aspect calcium removal/recovery, to avoid scaling problems in successive advanced separation units other salts. work sodium citrate (Na 3 C 6 H 5 O...

Journal: :International Journal of Applied Glass Science 2022

Zinc-doped bioactive glass prepared by conventional melting was tested in simulated body fluid (SBF) to quantitatively determine zinc ion release at the early stage of dissolution glass. The analysis leaching solution performed a flow-through arrangement, with reaction cell connected directly nebulizer ICP OES. Possible formation silicate and phosphate as alteration products precipitating from ...

2016
Andrea Giaccherini Francesco Di Benedetto

A relevant research effort is devoted to the synthesis and characterization of phases belonging to the ternary system Cu–Sn–S, mainly for their possible applications in semiconductor technology. Among all ternary phases, kuramite, Cu3SnS4, mohite, Cu2SnS3, and Cu4Sn7S16 have attracted the highest interest. Numerous studies were carried out claiming for the description of new phases in the terna...

Journal: :Advances in transdisciplinary engineering 2022

Groundwater and its geological functions are closely related to human life economic construction. The quality of groundwater is great significance for maintaining the development national economy daily residents in region. Understanding chemical characteristics genesis mechanism a certain area helpful provide important basis sustainable resources this area. This study mainly aimed at Yiluo Basi...

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