RESEARCH AND MANUFACTURE OF EQUIPMENT TO REDUCE H2S GAS LEVEL IN WATER AND AIR OF MY AN MINERAL WATER RESOURCE (BBN EQUIPMENT)

2012 ◽  
pp. 101-106
Author(s):  
Duc Buu Chu ◽  
Cong Nho Luong ◽  
Thi Bich Tran
Keyword(s):  
Water Quality ◽  
Analytical Methods ◽  
Mineral Water ◽  
Empirical Methods ◽  
Residential Areas ◽  
Treatment Efficiency ◽  
Curative Effect ◽  
Gas Well ◽  
Handling Performance ◽  
Water Taste

Background: H2S gas concentrations in the My An mineral water is quite high, causing environmental problems and health of the surrounding residential areas as well as affecting the citizens and visitors to use the service in My An Onsen Spa Resort. So the equipment BBN made ​​to reduce the H2S content in water and air of My An mineral water. Methods: Using empirical methods the authors have successfully made devices BBN and using analytical methods to evaluate treatment efficiency of this device. Results: We successfully created BBN equipment that is capable of handling H2S gas well, significantly reducing the H2S odor in the air and improving the mineral water taste, helping to prolong immersion bath time. BBN device does not affect water quality and curative effect of My An mineral water. H2S handling performance of the device reached 89.07%. Keywords: handling H2S, My An mineral water, BBN equipment

Study on Water Quality Characteristics of Mineral Water in Tea Literatures

2017 ◽  
Vol 23 (2) ◽  
pp. 31-39
Author(s):  
Pyong-In Yi ◽  
Jung-hwan Kwon ◽  
So-hui Ko ◽  
Sung-chul Hong ◽  
Yong-jae Lee ◽  
...  
Keyword(s):  
Water Quality ◽  
Mineral Water ◽  
Quality Characteristics

The relationship between musty-odor-causing organisms and water quality in Lake Biwa

1995 ◽  
Vol 31 (11) ◽  
pp. 153-158 ◽  
Author(s):  
M. Kajino ◽  
K. Sakamoto
Keyword(s):  
Water Quality ◽  
Data Analysis ◽  
Green Algae ◽  
Analytical Methods ◽  
Lake Biwa ◽  
Blue Green Algae ◽  
Odor Compounds ◽  
Musty Odor ◽  
The Relationship

Musty odor has occurred annually in Lake Biwa since 1969. Osaka municipal waterworks, which is located downstream of Lake Biwa, has made many efforts to treat musty-odor compounds produced in Lake Biwa from spring through autumn. With the development of analytical methods for the determination of musty-odor compounds, we have been able to confirm that planktonic blue-green algae are the major causes of the musty-odor occurrences. The relationship between the growth of blue-green algae and the water quality was not so apparent. However, through our data analysis focusing on the relationship between musty-odor occurrences due to Phormidium tenue or Oscillatoria tenuis and some nutrients in Lake Biwa, we found that the concentration of nitrate in water may be an important parameter for the estimation of growth of the algae and the musty-odor behavior.

Use of permeable, reservoir pavement constructions for stormwater treatment and storage for re-use

1999 ◽  
Vol 39 (5) ◽  
pp. 145-151 ◽  
Author(s):  
C. J. Pratt
Keyword(s):  
Water Quality ◽  
Urban Areas ◽  
Water Environment ◽  
Cost Savings ◽  
Environmental Benefits ◽  
Stormwater Treatment ◽  
Residential Areas ◽  
Materials Used ◽  
The Uk ◽  
The Impact

Permeable surfaces for roads and footpaths have been used as a means of disposal of stormwater in developed urban areas. Such surfaces provide an alternative to impermeable concrete or tarmacadam surfaces which would otherwise produce rapid stormwater runoff, leading to possible flooding and degeneration of receiving water quality through the uncontrolled discharge of polluted urban waters. A further advantage may be obtained from such constructions by undersealing them so as to retain stormwater for re-use for non-potable uses. The potential for general introduction of this type of storage and re-use system in residential areas is discussed and possible alternative designs for the drainage infrastructure proposed. To have widespread impact such a strategy must deliver cost savings as well as reduce the impact on the water environment of anticipated water usage demands. The source of such cost savings and the general environmental benefits of such systems will be presented. The materials used in such a sealed construction and the beneficial changes to the stored water quality are outlined. Recent work has also shown that where the pavement is used for car parking any oils dropped on the surface and washed into the structure by the stormwater may also be degraded. Details will be given of a site in the UK where the above construction is to be used to provide stormwater storage for re-use in flushing toilets at a Youth Hostel.

Mineral Water Quality Influencing Factors in their Selection for Use

2021 ◽  
Vol 42 ◽  
pp. 203-208
Author(s):  
Mihai Demian ◽  
Gabriela Demian
Keyword(s):  
Water Quality ◽  
Decision Making ◽  
Influencing Factors ◽  
Therapeutic Effect ◽  
Mineral Water ◽  
Mineral Waters ◽  
Selection For ◽  
Physical And Chemical ◽  
Selection Of

The paper presents a way of selecting flat or carbonated mineral waters depending on the purpose for which it wishes to be used. A good mineral water must meet certain physical and chemical qualities at certain temperatures and have the appropriate pH to have the desired therapeutic effect. The analysis of the purpose for which the selection of mineral waters is desired results in the characteristics of the water to be analyzed, compared, and for which a weight of their influence in the decision-making is established. For selected waters, the characteristics receive scores that will in turn influence the selection of the recommended type of mineral water. The conclusions of the paper allow the establishment of a certain type of mineral water for the characteristics imposed by the desired purpose.

Water quality studies in Kranji catchment, Singapore: use of organic tracers and polyethylene devices for identifying potential sewage sources

2012 ◽  
Vol 7 (2) ◽  
Author(s):  
A. R. Mendez Sagel ◽  
P. Shanahan ◽  
J. K. MacFarlane ◽  
P. M. Gschwend
Keyword(s):  
Water Quality ◽  
Land Use ◽  
Endocrine Disruptors ◽  
Passive Samplers ◽  
Nonylphenol Ethoxylates ◽  
Residential Areas ◽  
Future Studies ◽  
Rivers And Streams ◽  
Laboratory Results ◽  
Polyethylene Devices

The objective of this study was to identify organic compounds that could serve as indicators of potential human fecal contamination sources to the Kranji Reservoir in Singapore and could be used as confirmation indicators along with bacteria indicators. The compounds chosen as potential tracers were nonylphenol (NP) and nonylphenol ethoxylates (NPEs), as these are indicative of sewage and have been found at measurable concentrations in rivers and streams elsewhere in Asia. Polyethylene devices (PEDs) were used as passive samplers to measure NP and NPEs in stormwater drains in Kranji Catchment, deployed in areas of different land use in order to obtain an overview of concentration ranges across the catchment and provide an indication of where and why these compounds could be found. Laboratory results showed that NP and NPEs were present in non-residential areas and preliminary modeling of corresponding water concentrations indicates potentially risky concentrations of NP in the water in some stormwater drains. More information is needed on detergents in Singapore to further evaluate using NPEs as sewage indicators. Future studies should be done to confirm concentrations in Kranji Catchment water to verify if there is a risk to the ecosystem's health as NP and NPEs are known endocrine disruptors.

scholarly journals Technical note: An anomaly in pH data in South Africa’s national water quality monitoring database – implications for future use

Water SA ◽  
2018 ◽  
Vol 44 (4 October) ◽  
Author(s):  
Carla-Louise Ramjukadh ◽  
Michael Silberbauer ◽  
Susan Taljaard
Keyword(s):  
Water Quality ◽  
Analytical Methods ◽  
Water Quality Monitoring ◽  
Technical Note ◽  
Buffering Capacity ◽  
Monitoring Programme ◽  
Quality Monitoring ◽  
Total Alkalinity ◽  
Meta Data ◽  
National Water

The South African national water quality database (Water Management System) houses data records from several environmental monitoring programmes, including the National Chemical Monitoring Programme (NCMP). The NCMP comprises an extensive surface water quality monitoring programme, managed by the Department of Water and Sanitation (DWS). The purpose of this technical note is to alert users to a systematic anomaly recently observed in the pH dataset of the NCMP, reflected in an abrupt increase between pre- and post-1990 data records. Although the cause of the anomaly in pH could not be confirmed with high confidence, an inappropriate acid rinse procedure in pre-1990 analytical methods was identified as the most likely cause, based on available evidence. This was supported by the variation in relative sensitivity when comparing the effect on waters with different buffering capacities, i.e., water with low buffering capacity (represented by total alkalinity < 10 mg/L, as CaCO3) showing the largest anomaly, compared with waters of higher buffering capacity (represented by total alkalinity > 30 mg/L, as CaCO3) showing the smallest anomaly. Historical pH data records in the NCMP (i.e. pre-1990), therefore should be used with caution, especially in more weakly buffered systems. The possibility of reconstructing data using a correction factor derived from detailed statistical analyses of the post-1990 pH characteristics at selected sites is a possible solution that could be investigated in future. A key lesson learnt is the need to be diligent in capturing detailed meta-data on sampling procedures and analytical methods in datasets spanning several generations. Availability of such information is critical in order to provide users with a means of evaluating the suitability and comparability of data records in long-term datasets. The DWS includes such meta-data in the current version of the database, dating from about 1995 onwards.

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