Hydrologic and water quality performance of a laboratory scale bioretention unit

2017 ◽  
Vol 12 (1) ◽  
Author(s):  
Jun Xia ◽  
Hongping Wang ◽  
Richard L. Stanford ◽  
Guoyan Pan ◽  
Shaw L. Yu
Keyword(s):  
Water Quality ◽  
Laboratory Scale ◽  
Quality Performance

Replicating the microbial community and water quality performance of full-scale slow sand filters in laboratory-scale filters

2014 ◽  
Vol 61 ◽  
pp. 141-151 ◽  
Author(s):  
Sarah-Jane Haig ◽  
Christopher Quince ◽  
Robert L. Davies ◽  
Caetano C. Dorea ◽  
Gavin Collins
Keyword(s):  
Water Quality ◽  
Microbial Community ◽  
Full Scale ◽  
Laboratory Scale ◽  
Sand Filters ◽  
Quality Performance

scholarly journals Operational and technical performance of a water distribution network in Oman

2021 ◽  
Author(s):  
Ahmed Al Naamani ◽  
Ahmad Sana
Keyword(s):  
Water Quality ◽  
Water Distribution ◽  
Distribution Network ◽  
Water Distribution Network ◽  
Capital City ◽  
Operational Performance ◽  
Residual Chlorine ◽  
Quality Performance ◽  
Urban Networks ◽  
Technical Performance

Abstract A water distribution network in an urban area in Muscat region (capital city of Oman) is assessed for operational performance using the widely accepted methodology proposed by International Water Association (IWA). The technical performance of this network was assessed using global performance index methods after modifying the performance levels as per local guidelines. A total of 37 operational performance indicators for the network were selected to carryout assessment. Overall operational performance showed high scores whereas some indicators showed unacceptable performance values. The network showed very high technical performance considering nodal pressures. The lower performance for pipe velocity may be attributed to the fact that the network is currently being utilized by 70% of the population for which it was designed. The residual chlorine levels were within the acceptable range of the Public Authority for Water (PAW) showing a very good performance by virtue of water quality. This study will be useful for the decision makers to assess the operational, technical and water quality performance of urban networks and take actions for improvements.

scholarly journals Adapting the Relaxed Tanks-in-Series Model for Stormwater Wetland Water Quality Performance

Water ◽  
2017 ◽  
Vol 9 (9) ◽  
pp. 691 ◽  
Author(s):  
Laura Merriman ◽  
Jon Hathaway ◽  
Michael Burchell ◽  
William Hunt
Keyword(s):  
Water Quality ◽  
Quality Performance ◽  
Wetland Water ◽  
In Series ◽  
Wetland Water Quality

scholarly journals Hydroecological monitoring of the quality of river waters of the Amudarya river basin in the territory of Uzbekistan

2019 ◽  
Vol 01 (01) ◽  
pp. 12-18
Author(s):  
CHembarisov Elmir Ismailovich ◽  
Mirzakobulov ZHahongir Bahtiyarovich ◽  
Rahimova Matluba Naimovna ◽  
Rasulov Bahadyr Olim ◽  
Tillaeva Zarina Umarovna
Keyword(s):  
Water Quality ◽  
River Basin ◽  
Surface Waters ◽  
Irrigated Agriculture ◽  
Irrigation Water Quality ◽  
Quality Performance ◽  
River Waters ◽  
The Republic ◽  
Scientific Base

The article considers the problems of irrigation water quality in Central Asia through hydroecological monitoring. Practical and scientific recommendations for solving these problems are offered. There are noted the necessity of development of scientific base of researches on all aspects of water quality and protection of water resources; adoption of laws and administrative documents on protection of waters and improvement of their quality; performance of various engineering, technological actions. The hydroecological state of surface waters of large irrigated areas of the Amudarya river basin was studied for regieon: Surkhandarya, Kashkadarya, Khorezm and irrigated zones of the Republic of Karakalpakstan. It is noted that the process of salinization of irrigated lands is dangerous for the region. According to the calculations 50...55 million tons of various salts are came to irrigated annually fields. This is the reason for the deterioration of the hydrological state of irrigated agriculture in the region.

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