scholarly journals Halophilic microorganisms in deteriorated historic buildings: insights into their characteristics

2016 ◽  
Author(s):  
Justyna Adamiak ◽  
Anna Otlewska ◽  
Beata Gutarowska ◽  
Anna Pietrzak
Keyword(s):  
Historic Buildings ◽  
Halophilic Microorganisms

scholarly journals Halophilic microorganisms in deteriorated historic buildings: insights into their characteristics.

2016 ◽  
Vol 63 (2) ◽  
Author(s):  
Justyna Adamiak ◽  
Anna Otlewska ◽  
Beata Gutarowska ◽  
Anna Pietrzak
Keyword(s):  
Compatible Solutes ◽  
Optimal Growth ◽  
Growth Conditions ◽  
Biochemical Properties ◽  
Salt Crystallization ◽  
Historic Buildings ◽  
Material Loss ◽  
Halophilic Microorganisms ◽  
Salt Hydrates ◽  
Temperature Ranges

Historic buildings are constantly being exposed to numerous climatic changes such as damp and rainwater. Water migration into and out of the material's pores can lead to salt precipitation and the so-called efflorescence. The structure of the material may be seriously threatened by salt crystallization. A huge pressure is produced when salt hydrates occupy larger spaces, which leads at the end to cracking, detachment and material loss. Halophilic microorganisms have the ability to adapt to high salinity because of the mechanisms of inorganic salt (KCl or NaCl) accumulation in their cells at concentrations isotonic to the environment, or compatible solutes uptake or synthesis. In this study, we focused our attention on the determination of optimal growth conditions of halophilic microorganisms isolated from historical buildings in terms of salinity, pH and temperature ranges, as well as biochemical properties and antagonistic abilities. Halophilic microorganisms studied in this paper could be categorized as a halotolerant group, as they grow in the absence of NaCl, as well as tolerate higher salt concentrations (Staphylococcus succinus, Virgibacillus halodenitrificans). Halophilic microorganisms have been also observed (Halobacillus styriensis, H. hunanensis, H. naozhouensis, H. litoralis, Marinococcus halophilus and yeast Sterigmatomyces halophilus). With respect to their physiological characteristics, cultivation at a temperature of 25-30°C, pH 6-7, NaCl concentration for halotolerant and halophilic microorganisms, 0-10% and 15-30%, respectively, provides the most convenient conditions. Halophiles described in this study displayed lipolytic, glycolytic and proteolytic activities. Staphylococcus succinus and Marinococcus halophilus showed strong antagonistic potential towards bacteria from the Bacillus genus, while Halobacillus litoralis displayed an inhibiting ability against other halophiles.

Layaway Procedures for U.S. Army Facilities: Inspection, Maintenance, and Repair of Historic Buildings.

1999 ◽  
Author(s):  
S. L. Hunter ◽  
D. R. Uzarski ◽  
V. E. Jenkins ◽  
D. M. Bailey ◽  
M. J. Binder
Keyword(s):  
Historic Buildings ◽  
Maintenance And Repair

Exopolysaccharide producing halophilic Microorganisms from west coast Of maharashtra, india

2017 ◽  
Vol 8 (1) ◽  
Author(s):  
SIDDHARTH V.DE SHMUKH ◽  
PRADNYA P.KAN EKAR ◽  
RAMA K.BHAD EKAR ◽  
SUNIL K. DHAR
Keyword(s):  
West Coast ◽  
Halophilic Microorganisms

scholarly journals How Can Scientific Literature Support Decision-Making in the Renovation of Historic Buildings? An Evidence-Based Approach for Improving the Performance of Walls

2021 ◽  
Vol 13 (4) ◽  
pp. 2266
Author(s):  
Valentina Marincioni ◽  
Virginia Gori ◽  
Ernst Jan de Place Hansen ◽  
Daniel Herrera-Avellanosa ◽  
Sara Mauri ◽  
...  
Keyword(s):  
Energy Performance ◽  
Decision Makers ◽  
Cultural Value ◽  
Correct Selection ◽  
Evidence Based ◽  
Historic Buildings ◽  
Indoor Environmental Quality ◽  
Building Stock ◽  
Advantages And Disadvantages ◽  
Assessment Design

Buildings of heritage significance due to their historical, architectural, or cultural value, here called historic buildings, constitute a large proportion of the building stock in many countries around the world. Improving the performance of such buildings is necessary to lower the carbon emissions of the stock, which generates around 40% of the overall emissions worldwide. In historic buildings, it is estimated that heat loss through external walls contributes significantly to the overall energy consumption, and is associated with poor thermal comfort and indoor air quality. Measures to improve the performance of walls of historic buildings require a balance between energy performance, indoor environmental quality, heritage significance, and technical compatibility. Appropriate wall measures are available, but the correct selection and implementation require an integrated process throughout assessment (planning), design, construction, and use. Despite the available knowledge, decision-makers often have limited access to robust information on tested retrofit measures, hindering the implementation of deep renovation. This paper provides an evidence-based approach on the steps required during assessment, design, and construction, and after retrofitting through a literature review. Moreover, it provides a review of possible measures for wall retrofit within the deep renovation of historic buildings, including their advantages and disadvantages and the required considerations based on context.

scholarly journals Groundwater damages on the historic buildings of Cairo: the case of the medieval walls of Mokattam limestone.

2020 ◽  
Vol 949 ◽  
pp. 012004
Author(s):  
M Coppola ◽  
F Di Benedetto ◽  
CA Garzonio ◽  
E Pecchioni ◽  
AP Santo
Keyword(s):  
Historic Buildings

scholarly journals Potential applications of halophilic microorganisms for biological treatment of industrial process brines contaminated with aromatics

2021 ◽  
Author(s):  
Thomas Mainka ◽  
David Weirathmüller ◽  
Christoph Herwig ◽  
Stefan Pflügl
Keyword(s):  
Wastewater Treatment ◽  
Process Monitoring ◽  
Industrial Wastewater ◽  
Continuous Process ◽  
Scale Up ◽  
Monitoring And Control ◽  
Saline Wastewater ◽  
Halophilic Microorganisms ◽  
Industrial Sectors ◽  
And Control

Abstract Saline wastewater contaminated with aromatic compounds can be frequently found in various industrial sectors. Those compounds need to be degraded before reuse of wastewater in other process steps or release to the environment. Halophiles have been reported to efficiently degrade aromatics, but their application to treat industrial wastewater is rare. Halophilic processes for industrial wastewater treatment need to satisfy certain requirements: a continuous process mode, low operational expenditures, suitable reactor systems and a monitoring and control strategy. The aim of this review is to provide an overview of halophilic microorganisms, principles of aromatic biodegradation, and sources of saline wastewater containing aromatics and other contaminants. Finally, process examples for halophilic wastewater treatment and potential process monitoring strategies are discussed. To further illustrate the significant potential of halophiles for saline wastewater treatment and to facilitate development of ready-to-implement processes, future research should focus on scale-up and innovative process monitoring and control strategies.

scholarly journals A Study on the Development of Tourist Support System Using ICT and Psychological Effects

2020 ◽  
Vol 10 (24) ◽  
pp. 8930
Author(s):  
Akira Sasaki ◽  
Fu Xiang ◽  
Rina Hayashi ◽  
Yuko Hiramatsu ◽  
Kazutaka Ueda ◽  
...  
Keyword(s):  
Prospect Theory ◽  
Mobile Phones ◽  
Psychological Effects ◽  
Low Energy ◽  
Historic Buildings ◽  
Personal Interest ◽  
World Heritage Sites ◽  
Heritage Sites ◽  
Travel Experience ◽  
And Behavior

We have been studying a sightseeing support application using Bluetooth Low Energy (BLE) beacons and mobile phones since 2014 to support sightseeing in Nikko, one of Japan’s World Heritage sites. Travelers can receive information relating to their position by using this application. We tried to use some psychological effects to increase travelers’ satisfaction when they receive such information. Moreover, we tried to emphasize travel memories of the place (scenery, culture, food, etc.) to encourage them to revisit or inspire their friends to visit it. Our tests prove the usefulness of our sightseeing support application for enhancing the travel experience. However, we had not yet developed a function to provide information that met the travelers’ intentions or needs. Moreover, it is hazardous to use a smartphone during walking, especially in an unfamiliar place. If a traveler uses a smartphone during walking, they might miss the beautiful scenery, historic buildings, and exotic atmosphere. We tried to adapt our sightseeing support application for use with a wearable device (smartwatch) to avoid using a smartphone during walking and introduced a prospect theory to evaluate information according to personal interest and behavior. Our experiments proved that our application provided the most appropriate sightseeing information to travelers and prevented danger during walking.

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