The Experts below are selected from a list of 16086 Experts worldwide ranked by ideXlab platform
Tjaša Griessler Bulc - One of the best experts on this subject based on the ideXlab platform.
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Zero-discharge solution for blackwater treatment at remote Tourist Facilities
Journal of Cleaner Production, 2017Co-Authors: Andreea Oarga-mulec, Petter D. Jenssen, Aleksandra Krivograd Klemenčič, Matej Uršič, Tjaša Griessler BulcAbstract:Abstract This study presents a novel decentralized sanitary separation system as a zero-discharge solution for blackwater (BW) (faeces, urine and toilet paper) treatment for remote Tourist Facilities located in sensitive areas. The system operates with low water and energy consumption, enables safe operation and requires low maintenance. The BW was collected from two vacuum toilets (VTs) (0.8 L flush water) and separated in peat filters (PFs) to obtain a liquid fraction (LF) and a solid fraction (SF) of the BW. The LF from the PFs was thereafter treated in a biofilter (BF) and finally evaporated in the evaporation module (EM) powered by solar vacuum collectors (SVC). In the PFs, particles larger than 1 mm were reduced from the BW by 96.5%. Furthermore, the total suspended solids (TSS) mass removal efficiency of the PFs averaged 51.5%. Reduction of ammonia through nitrification was noticeably enhanced after 100 days of the system operation (max. 55.8%). 21.2% or 0.54 kg of total phosphorus (TP) was retained in the PFs, to be further composted and reused for agricultural purposes. An additional 5% or 0.10 kg of TP was retained in the BF. The final step of the LF treatment was in the EM at a sanitizing temperature of >60 °C to prevent the release of human pathogens into environment. With a total electricity consumption of 9.1 kWh/day and a heat consumption of approximately 5.1 kWh/day gained by the SVC, the system successfully integrated different approaches to treating the BW, recycling nutrients, and removing pathogens.
Owais Khan - One of the best experts on this subject based on the ideXlab platform.
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Taxila Valley and Tourist’s Satisfaction: Gender and Age Based Analysis of Tourist Facilities
2019Co-Authors: Owais KhanAbstract:Pakistan contains its fair part of treasures, one of the prominent of these being the ancient metropolis of Taxila . It is a city of the Gandharan civilization , sometimes known as one of its capitals, whose history can be traced from early microlithic communities at the Khanpur caves up to almost 1000 CE. Taxila was a hub of Buddhism , a centre of learning, an urban metropolis and a meeting point of various cultures, namely the Achaemenids, Greeks, Mauryans, Scythians, Parthians, Kushans, Huns and eventually the Muslims. Although it was lost to time for nearly 1000 years following its decline, the metropolis and its multitude of treasures came to light in the late 1800s CE under Alexander Cunningham who was an antiquarian for the British Raj and more prominently under John Marshall, the first director of the Archaeological Survey of India in the early 1900s CE. The ancient city known to the Greeks as Taxila, and Takshasila to Sanskrit writers is located about 30 kilometers North West of Islamabad, in a valley bounded on the east by Murree hills and by its two spurs namely Sarda and Margala, on the North South respectively. The Buddhists establishments associated with Taxila are, however, spread over several kilometers The current research of the present author investigate the tourism potential in Taxila valley in true sense and tried to evaluate the different aspects of archeologist Tourists coming to Taxila and author focused on demographics, travelling behavior, purpose of travel, stay pattern and Tourist’s satisfaction. The overall results indicate that domestic as well as international Tourists came to Taxila Valley because of its cultural heritage. The finding of the study also pin point that maximum number of Tourists belong to younger segment of the society, their ages range from 16 to 30 years.
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taxila valley and Tourist s satisfaction gender and age based analysis of Tourist Facilities
[GKA ARTS 2019] Congreso Internacional de Artes y Culturas, 2019Co-Authors: Owais KhanAbstract:Pakistan contains its fair part of treasures, one of the prominent of these being the ancient metropolis of Taxila . It is a city of the Gandharan civilization , sometimes known as one of its capitals, whose history can be traced from early microlithic communities at the Khanpur caves up to almost 1000 CE. Taxila was a hub of Buddhism , a centre of learning, an urban metropolis and a meeting point of various cultures, namely the Achaemenids, Greeks, Mauryans, Scythians, Parthians, Kushans, Huns and eventually the Muslims. Although it was lost to time for nearly 1000 years following its decline, the metropolis and its multitude of treasures came to light in the late 1800s CE under Alexander Cunningham who was an antiquarian for the British Raj and more prominently under John Marshall, the first director of the Archaeological Survey of India in the early 1900s CE. The ancient city known to the Greeks as Taxila, and Takshasila to Sanskrit writers is located about 30 kilometers North West of Islamabad, in a valley bounded on the east by Murree hills and by its two spurs namely Sarda and Margala, on the North South respectively. The Buddhists establishments associated with Taxila are, however, spread over several kilometers The current research of the present author investigate the tourism potential in Taxila valley in true sense and tried to evaluate the different aspects of archeologist Tourists coming to Taxila and author focused on demographics, travelling behavior, purpose of travel, stay pattern and Tourist’s satisfaction. The overall results indicate that domestic as well as international Tourists came to Taxila Valley because of its cultural heritage. The finding of the study also pin point that maximum number of Tourists belong to younger segment of the society, their ages range from 16 to 30 years.
Andrés A. Borges - One of the best experts on this subject based on the ideXlab platform.
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Rejected brine recycling in hydroponic and thermo-solar evaporation systems for leisure and Tourist Facilities. Changing waste into raw material.
Desalination, 2020Co-Authors: David Jiménez-arias, Sarai Morales-sierra, Francisco J. García-machado, Ana L. García-garcía, Juan C. Luis, Francisco Valdés, Luisa M. Sandalio, Manuel Hernández-suárez, Andrés A. BorgesAbstract:Abstract For >50 years the Canary Islands have been using seawater desalinization Facilities in order to satisfy the freshwater demand of their main economic activity –tourism, which continues to contribute to the economic and social progress of the archipelago. However, this desalinization process involves the production of a “waste” product known as rejected brine, which is discharged from coastal regions and islands, whether it originates from public or private Facilities. Rejected brines are potentially a serious threat to marine ecosystems. However, here we demonstrate that this “waste” can be processed and reused as a nutrient mineral solution for a hydroponic production system and also a source of freshwater. The efficiency of this management process in terms of fresh-water production and water recycling economy is also discussed. The aim of this paper is to change the attitude towards rejected brines, which should be treated as potential raw material to permit high savings in the running costs of leisure and Tourist Facilities around the archipelago. In addition, this will also have a positive effect on the environment, making desalinization more sustainable and environmentally friendly, which is nowadays an added value in customer and user satisfaction.
Andreea Oarga-mulec - One of the best experts on this subject based on the ideXlab platform.
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Zero-discharge solution for blackwater treatment at remote Tourist Facilities
Journal of Cleaner Production, 2017Co-Authors: Andreea Oarga-mulec, Petter D. Jenssen, Aleksandra Krivograd Klemenčič, Matej Uršič, Tjaša Griessler BulcAbstract:Abstract This study presents a novel decentralized sanitary separation system as a zero-discharge solution for blackwater (BW) (faeces, urine and toilet paper) treatment for remote Tourist Facilities located in sensitive areas. The system operates with low water and energy consumption, enables safe operation and requires low maintenance. The BW was collected from two vacuum toilets (VTs) (0.8 L flush water) and separated in peat filters (PFs) to obtain a liquid fraction (LF) and a solid fraction (SF) of the BW. The LF from the PFs was thereafter treated in a biofilter (BF) and finally evaporated in the evaporation module (EM) powered by solar vacuum collectors (SVC). In the PFs, particles larger than 1 mm were reduced from the BW by 96.5%. Furthermore, the total suspended solids (TSS) mass removal efficiency of the PFs averaged 51.5%. Reduction of ammonia through nitrification was noticeably enhanced after 100 days of the system operation (max. 55.8%). 21.2% or 0.54 kg of total phosphorus (TP) was retained in the PFs, to be further composted and reused for agricultural purposes. An additional 5% or 0.10 kg of TP was retained in the BF. The final step of the LF treatment was in the EM at a sanitizing temperature of >60 °C to prevent the release of human pathogens into environment. With a total electricity consumption of 9.1 kWh/day and a heat consumption of approximately 5.1 kWh/day gained by the SVC, the system successfully integrated different approaches to treating the BW, recycling nutrients, and removing pathogens.
David Jiménez-arias - One of the best experts on this subject based on the ideXlab platform.
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Rejected brine recycling in hydroponic and thermo-solar evaporation systems for leisure and Tourist Facilities. Changing waste into raw material.
Desalination, 2020Co-Authors: David Jiménez-arias, Sarai Morales-sierra, Francisco J. García-machado, Ana L. García-garcía, Juan C. Luis, Francisco Valdés, Luisa M. Sandalio, Manuel Hernández-suárez, Andrés A. BorgesAbstract:Abstract For >50 years the Canary Islands have been using seawater desalinization Facilities in order to satisfy the freshwater demand of their main economic activity –tourism, which continues to contribute to the economic and social progress of the archipelago. However, this desalinization process involves the production of a “waste” product known as rejected brine, which is discharged from coastal regions and islands, whether it originates from public or private Facilities. Rejected brines are potentially a serious threat to marine ecosystems. However, here we demonstrate that this “waste” can be processed and reused as a nutrient mineral solution for a hydroponic production system and also a source of freshwater. The efficiency of this management process in terms of fresh-water production and water recycling economy is also discussed. The aim of this paper is to change the attitude towards rejected brines, which should be treated as potential raw material to permit high savings in the running costs of leisure and Tourist Facilities around the archipelago. In addition, this will also have a positive effect on the environment, making desalinization more sustainable and environmentally friendly, which is nowadays an added value in customer and user satisfaction.