This study highlights the decomposing role through hydrolytic activities of fungi isolated from natural environments represented by brackish and hypersaline lakes in Romania. Novel strains belonging to Penicillium, Aspergillus, Emericellopsis genera were screened for ability produce extracellular enzymes, i.e., proteases, lipases, amylases, cellulases, xylanases, pectinases. According salt requ...

Remanufacturing is one of the most effective strategies to achieve sustainable manufacturing and restore performance end-of-life products. However, lack an cleaning method clean carbonaceous deposits severely hampers remanufacturing engines. To explore appropriate method, it necessary first study characterization deposits. A broad range analyses including X-ray fluorescence spectrometry, thermo...

Conventional electroless nickel–boron deposits are produced using solutions that contain lead or thallium, which must be eliminated due to their toxicity. In this research, were in a stabilizer-free bath does not include any toxic heavy metal. During processing, the plating rate increased from 10 14.5 µm/h by decreasing concentration of reducing agent, leading stability. The thickness, composit...

Abstract The study focuses on corrosion challenges for naphtha hydrotreating equipment (installed upstream of a reforming unit) caused by ammonium chloride deposits and the development adequate chemical engineering protection measures. Using an experimental setup, we investigated sublimation/desublimation at varying pressures temperatures in medium typical hydrogen-bearing gas streams flowing f...

Salt deposits are commonly regarded as ideal hosts for geologic energy reservoirs. Underground cavern construction-induced damage in salt is reduced by self-healing. Thus, studying the influencing factors on such healing processes is important. This research uses ultrasonic technology to monitor the longitudinal wave velocity variations of stress-damaged rock salts during self-recovery experime...

Abstract The Central Andes of South America host the largest known lithium resources in a confined area, but primary sources salar deposits and mobilisation process are still matter speculation. Chemical weathering at or near surface leaching hydrothermal systems active magmatic arc considered two main mechanisms Li extraction from source rock. strontium isotope composition typical offer insigh...

An in situ colorimetric method, based on the CIE (Commission Internationale de l'Eclairage) system of colorimetry, has been applied to the study of the electrochromic N,N ́-bis(n-heptyl)-4,4 ́-bipyridylium (‘di-n-heptyl viologen’) system in aqueous solution on transmissive ITO/glass substrates. On electrochemical reduction of the di-n-heptyl viologen di-cation, the purple di-n-heptyl viologen rad...

The Murray Basin in southeastern Australia is an intracratonic sedimentary basin of Cainozoic age that extends across 300 000 square kilometres of New South Wales, Victoria and South Australia. The upper sequences, principally the Loxton–Parilla Sands, Calivil Formation and Shepparton Formation, contain economic accumulations of heavy mineral sands; bentonite; kaolin; and gypsum. Mineral sands ...

This paper represents the results of a study chemical composition salt lakes within Burabay rock mass in eastern Kazakhstan. We sampled water and bottom deposits, geochemically analyzed lakes, performed aerial photography to geometrize them. studied linkage between rare-metal mineralization granites territory. Based on obtained data, we identified prospects survey area for rare metals. The surv...

Corrosion of titanium heat exchangers in the processing sylvinite ore is undesirable from economic, safety, and process sustainability perspectives. Triggered by an industrial case, we investigated extent corrosion during simulated contact with (in dissolving lye) relevant conditions. Detailed characterization failed tubes products was carried out to understand mechanism failure. (Grade 2) at r...