scholarly journals Surface lake water quality index estimation using fuzzy logic interface

2020 ◽  
Author(s):  
R. Kumaravel ◽  
J.S. Sudarsan ◽  
D. Justus Reymond ◽  
S. Ramesh ◽  
B. Nithesh Ikshwaak
2021 ◽  
Vol 12 (1S) ◽  
pp. 184-197
Author(s):  
Abdul Rahim Ibrahim ◽  
Saiful Iskandar Khalit ◽  
Zati Sharip ◽  
Noor Atiqah Badaluddin

Water is the most crucial element for living organisms as a component for survival. Even water has become the habitat for some organisms. Therefore, assessment of water quality is vital to keep water in good condition. This study aimed to determine the water quality of Besut Campus Lake by assessing the physicochemical parameters. Water Quality Index (WQI) is related to the process of determining the status class of water according to beneficial use, with a higher index value indicate good water quality. National Lake Water Quality Standard (NLWQS) was also applied in determining the category of enclosed water systems like ponds and lakes. Water samples were taken from sampling stations at Besut Campus Lake and undergo in – situ and ex–situ analyses involving nine physicochemical parameters. In addition, heavy metal analyses were conducted in the laboratory according to American Public Health Association (APHA) methods. Based on the research conducted, Besut Campus Lake was classified as Class Ⅱ with an index value of 78.23 from the Malaysia Water Quality Index (MWQI), which means recreational activities can be conducted within the lake area involving body contact. Meanwhile, according to National Lake Water Quality Standard (NLWQS), the water category of Besut Campus Lake can be categorised as Category B, which means recreational activities with secondary body contact. Further in-depth analyses involving other microbiological parameters should be carried out before the water can be recommended for primary contact recreation such as swimming.


2018 ◽  
Vol 7 (3.23) ◽  
pp. 5
Author(s):  
Muhammad Muzzammil Shahabudin ◽  
Sabariah Musa

Lake water is important to all life and surroundings with multiples benefits and forms either in natural or man-made conditions. One of the most well-known tools for assessing the water quality is Water Quality Index (WQI) and widely used including Malaysia. Lake water quality should be represented in lucid way like other surface water regarding to the WQI standards for water quality assessment on lakes. This paper aims to review on lake water quality classification and its uses based on WQI standards in Malaysia. In this review, the uses of WQI for assessing the lake water and functioned of lakes are discussed. Results on pH from 5.0 to 9.2, BOD in mg/l from 0 to 180, COD in mg/l from 5 to 150, SS in mg/l from o to 1800, DO in mg/l from 0 to 8 and AN in mg/l N from -1 to 26. Variety of numbers is due to different loading of pollutions and location. With used of WQI on lake water quality assessments, further action can be taken for the uses on water resources by maintaining the quality. It also will broaden the uses of lake water as alternative of water resources in Malaysia.  


2020 ◽  
Vol 37 (1) ◽  
pp. 6-18
Author(s):  
Lenin Quiñones-Huatangari ◽  
Luis Ochoa ◽  
Manuel Emilio Milla-Pino ◽  
José Federico Bazán ◽  
Oscar Andrés Gamarra ◽  
...  

Water is a fundamental nutrient in the life of any living being. Therefore, it is necessary to estimate its quality, because it is an issue of increasing concern countries around the world for reasons such as the health of the population, regional, national and international economic development, and the environmental quality of the ecosystems. One tool that has been used to know the state of the water is the water quality indexes (WQI). The objective of this research was to develop a WQI based on fuzzy logic, which allows for the estimation of water quality in the Utcubamba River. The methodology used was proposed by Icaga in 2007. To evaluate the proposed WQI called "Diffuse Water Quality Index" (DWQI), sixteen points from the sampling conducted by the Research Institute for Sustainable Development during October 2014 on the Utcubamba River and its tributaries were used. To validate the index, it was necessary to estimate the correlation coefficient R2 between the results obtained and those of the NSF WQI wáter quality index reported by the Water Research Center. This new index presented results and reasonable correlation, R2 = 0.81. It is concluded that DWQI can be used as a tool for decision making in the water management of the Utcubamba River.


Author(s):  
Sandra Regina Monteiro Masalskiene Roveda ◽  
Ana Paula Maia Bondanca ◽  
Joao Guilherme Soares Silva ◽  
Jose Arnaldo Frutuoso Roveda ◽  
Andre Henrique Rosa

2010 ◽  
Vol 61 (8) ◽  
pp. 1987-1994 ◽  
Author(s):  
A. M. Jinturkar ◽  
S. S. Deshmukh ◽  
S. V. Agarkar ◽  
G. R. Chavhan

The paper proposes fuzzy logic model that deals with the physico-chemical water analysis of ground water of Chikhli town for determination of Water Quality Index (WQI). The study was carried by collection of ground water samples from about eleven hand pumps located in this town. Ground water quality is studied by systematic collection and analysis of samples. The fuzzy logic is used for the deciding the water quality index on the basis of which, water quality rankings are given to determine the quality of water. The Water Quality Index presented here is a unitless number ranging from 1 to 10. A higher number is indicative of better water quality. Around 81% of samples were found suitable for drinking purpose. It is also observed that all the parameters fall within the permissible limits laid by WHO, ISI, and ICMR, except Total Hardness, Calcium and Magnesium. The quality parameters were compared with standards laid by the World Health Organization (WHO), Indian Standards Institute (ISI) and Indian Council of Medical Research (ICMR) for drinking water quality.


2017 ◽  
Vol 2 (1) ◽  
pp. 18
Author(s):  
Guntar Marolop S ◽  
Sutrisno Sutrisno

The Lake is an ecosystem of wetlands to note preserved. However, since the Lake is an open system that can also be utilized for the certain provisions tailored to support power and capacity of the Lake. One of the supported power and capacity of the Lake is the availability and quality of the water of the Lake. Sipin lakes located in the city of Jambi, have long been exploited by various parties, just that its utilization is not maximal for a variety of activities. To maximize its utility it is necessary to know the power support and power tampungnya. By knowing the power support and power tampungnya then it can be determined the allocation it is used so that will give you maximum results. One of the variables that need to be taken care of in order to use Sipin Lake against correspond to peruntukkannya is about the availability and quality of water. Study on quantity and quality of water of the Lake can be done by way of Sipin analyzed the data using the method of precipitation F.J. Mock. Water quality studies done by using water quality Index method of electronically Stored. F.J. method using Mock data to analyze rainfall from year 2005 until 2015, obtained that debit maximum inlet reach 4,870 m3/sec and the minimum discharge of 2,090 m3/sec.Method Stored i.e. testing kualiats Sipin lake water from year 2014 2016 disimpulkkan s/d that the water quality of Lake Sipin only in accordance with the requirements of the water quality of the IV. From fluctuations in discharge and water quality of the IV, then Lake peruntukaan Sipin can only be utilized to provide water gardening or urban businesses or other businesses that comply with the requirements of the water quality of the IV.Keywords: Lake, water quantity, water quality, allocation, and utilization.


2013 ◽  
Vol 12 ◽  
pp. 26-31 ◽  
Author(s):  
P. Chardhry ◽  
M. P. Sharma ◽  
Renu Bhargava ◽  
S. Kumar ◽  
P.J.S. Dadhwal

The Sukhna Lake of Chandigarh City is a man-made lake situated in the foothills of the Shivalik range in the north-east corner of the city. This urban lake is one of the prime tourist places of the ‘City Beautiful’ and is mainly used for recreational purposes like boating, morning and evening strolls, exercises, food plaza and sightseeing. The catchment of the lake is mainly hilly and erosion prone, with the Sukhna wildlife sanctuary comprising a major portion of it. The water quality index of the lake water and its dependence on catchment characteristics has been studied. By using the National Sanitation Foundation Water Quality Index (NSFWQI) and Overall Index of Pollution (OIP), the results of the water quality assessment have found the lake water as having ‘good’ and ‘acceptable’ quality respectively based on past seven years’ data. During the last few years, construction activities in the catchment area have speeded up and a few invasive alien plant species have come up in the lake. Inflow of untreated domestic waste water from nearby villages in the catchment, particularly during the rainy season, seems to be the main reason for the weed problem in the lake. Strict enforcement of ban on new construction activities and preventing the release of untreated domestic waste water from the villages located in the catchment are the absolute necessary steps for maintaining and improving the lake water quality.Hydro Nepal: Journal of Water, Energy and EnvironmentVol. 12, 2013, JanuaryPage: 26-31DOI: http://dx.doi.org/10.3126/hn.v12i0.9028Uploaded Date : 10/28/2013


2011 ◽  
Vol 10 (50) ◽  
pp. 10125-10133 ◽  
Author(s):  
Semiromi Babaei ◽  
F ◽  
Hassani ◽  
A H ◽  
Torabian ◽  
...  

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