Spatial and physicochemical assessment of groundwater quality in the urban coastal region of Sri Lanka

2021 ◽  
Author(s):  
Thanippuli Arachchige Nilusha Thara Perera ◽  
Herath Mudiyanselage Malhamige Sona Herath ◽  
Ranjana Udaya Kumara Piyadasa ◽  
Liu Jianhui ◽  
Li Bing
Keyword(s):  
Sri Lanka ◽  
Groundwater Quality ◽  
Coastal Region

scholarly journals Spatial and physicochemical assessment of groundwater quality index in the urban coastal region of Sri Lanka

2021 ◽  
Author(s):  
TANT Perera ◽  
HMMSD Herath ◽  
Ranjana U.K Piyadasa ◽  
Liu Jianhui ◽  
Li Bing
Keyword(s):  
Sri Lanka ◽  
Groundwater Quality ◽  
Quality Index ◽  
Coastal Region ◽  
Spatial And Temporal Variation ◽  
Study Region ◽  
Groundwater Quality Index ◽  
Physiochemical Parameters ◽  
Acceptable Range ◽  
Groundwater Samples

Abstract This study used the groundwater quality index (GWQI) and Geographic Information System (GIS) techniques to examine groundwater quality in the western coastal region of Sri Lanka. The spatial and temporal variation of 18 groundwater samples' physiochemical parameters [pH, electrical conductivity (EC), turbidity, total dissolved solids (TDS), sodium (Na+), potassium (K+), calcium (Ca2+), magnesium (Mg2+), chloride (Cl−), and bicarbonate (HCO3−)] were studied. According to the WHO and SLS, 11% of samples had EC levels that were above the acceptable range, and 22% had turbidity levels that were beyond the acceptable range. When considering, pH, TDS, other cations, and anions analyzed in the study were still below the standard permissible levels. The western coastline region, as well as several areas of the central study region, had significant concentrations of physicochemical parameters. According to the GWQI, water was consumable in 77.78% of locations in the study region and unsatisfactory in 22.22%. Furthermore, due to severe coastal erosion, the quality of groundwater in the study region is deteriorating, therefore maintaining a comprehensive groundwater management strategy to promote sustainable water consumption is imperative.

scholarly journals Kajian Potensi Air Tanah Berdasarkan Data Geolistrik Resistiviti Untuk Antisipasi Kekeringan Di Wilayah Pesisir Kangkung, Kabupaten Kendal, Privinsi Jawa Tengah

2017 ◽  
Vol 20 (1) ◽  
pp. 35 ◽  
Author(s):  
Sugeng Widada ◽  
Alfi Satriadi ◽  
Baskoro Rochaddi
Keyword(s):  
Groundwater Quality ◽  
Ground Water ◽  
Coastal Area ◽  
Sea Water ◽  
Coastal Region ◽  
Pumping Test ◽  
Dry Season ◽  
Sea Water Intrusion ◽  
Groundwater Exploitation ◽  
Water Intrusion

Coastal Region of Kangkung, Kendal Regency, Central Java Province is one of the areas that experiencing water in the dry season. Groundwater exploitation is one way solution to meet the water needs for people in the area, especially in the dry season. Therefore it is necessary to study potency of ground water in coastal area of Kangkung. The research was  conducted to determine the potential of ground water in the confined aquifer in the Coastal Region of Kangkung, Kendal District which is expected to be utilized as a source of water to meet the needs of local communities. The method used in this research is  descriptive analysis to describe the condition of aquifer, however some things are delivered quantitatively. The aquifer condition was obtained from the interpretation of geoelectricity (resistivity) data supported by geological and hydrogeological observation data and pumping test data as secondary data. Groundwater quality analysis and simple hydrochemical analysis is with Chlorida - Bicarbonat Ratio (CBR) method to know the possibility of sea water intrusion. The results showed that the aquifer in the coastal area of Kangkung has the potential of 29.13 lt / sec ground water discharge which can be utilized to meet the needs of clean water 18,800 people. Although it is adjacent to the sea, the groundwater in the study area does not undergo sea water intrusion. Groundwater quality in this location is qualified as raw drinking water according to SK Menkes No, 492/Menkes/Per/IV2010 tentang Persyaratan Kualitas Air Minum. Keywords: ground water, geoelectric, intrusion  Wilayah Pesisir Kangkung, Kabupaten Kendal Provinsi Jawa Tengah merupakan salah satu daerah yang pada musim kemarau mengalami kekeringan. Pemanfaatan air tanah merupakan salah satu cara untuk memenuhi kebutuhan air bagi masyarakat di daerah tersebut, terutama pada musim kemarau. Oleh karena itu perlu dilakukan kajian potensi air tanah di daerah Pesisir Kangkung tersebut. Penelitian ini bertujuan untuk mengetahui potensi air tanah pada akuifer dalam (tertekan) di Wilayah Pesisir Kangkung, Kabupaten Kendal yang diharapkan dapat dimanfaatkan sebagai sumber air bersih untuk memenuhi kebutuhan masyarakat setempat. Metode penelitian yang digunakan dalam penelitian ini adalah diskriptis analisis untuk menggambarkan kondisi akuifer, namun demikian beberapa hal disampaikan secara kuantitatif. Kondisi akuifer diperoleh dari hasil interpretasi data geolistrik resistiviti dengan didukung data hasil pengamatan geologi dan hidrogeologi serta data sekunder berupa hasil pumping test. Analisa kualitas air tanah dan analisis hidrokimia secara sederhana dengan metode Chlorida – Bicarbonat Ratio (CBR) dilakukan untuk mengetahui kemungkinan terjadinya intrui air laut. Hasil penelitian menujukan bahwa akuifer di daerah Pesisir Kangkung mempunyai potensi debit air tanah 29,13 lt/det yang dapat dimanfaatkan untuk memenuhi kebutuhan air bersih 18.800 orang. Meskipun berbatasan dengan laut, namun air tanah di daerah kajian tidak mengalami  terintrusi air laut. Kualitas air tanah di lokasi ini memenuhi syarat sebagai bahan baku air minum sesuai SK Menkes No, 492/Menkes/Per/IV2010 tentang Persyaratan Kualitas Air Minum. Kata Kunci : air tanah, geolistrik, intrusi

Elemental and Mineralogical Analysis of Beachrocks in Southern Coastal Region Sri Lanka

2019 ◽  
Author(s):  
Anjula Dassanayake ◽  
Chulatha Jayawardena ◽  
Indeewari Edirisooriya ◽  
Dharshana Thilakarathna ◽  
Vijitha Thirunavukarsu
Keyword(s):  
Sri Lanka ◽  
Coastal Region ◽  
Mineralogical Analysis

scholarly journals Conceptual Model of Evolution of Groundwater Quality at the Dry Zone in Sri Lanka.

1999 ◽  
Vol 12 (5) ◽  
pp. 408-428 ◽  
Author(s):  
Xianfang SONG ◽  
Isamu KAYANE ◽  
Tadashi TANAKA ◽  
Jun SHIMADA
Keyword(s):  
Sri Lanka ◽  
Groundwater Quality ◽  
Conceptual Model ◽  
Dry Zone

scholarly journals Length-weight relationships of four different sea cucumber species in North-East coastal region of Sri Lanka

2018 ◽  
Vol 29 (2) ◽  
pp. 212 ◽  
Author(s):  
K. Veronika ◽  
U. Edrisinghe ◽  
K. Sivashanthini ◽  
A. R. S. B. Athauda
Keyword(s):  
Sri Lanka ◽  
Sea Cucumber ◽  
Coastal Region ◽  
North East

scholarly journals Influence of Seaweed (Padina antrillarum) Extract Foliar Application on Growth and Flowering of Roses Variety ‘Local’

2021 ◽  
Vol 9 (4) ◽  
pp. 235-241
Author(s):  
M.A.M.N. Kularathne ◽  
S. Srikrishnah ◽  
S. Sutharsan
Keyword(s):  
Sri Lanka ◽  
Management Practices ◽  
Plant Biomass ◽  
Foliar Application ◽  
Coastal Region ◽  
Seaweed Extract ◽  
Control Treatment ◽  
Liquid Extract ◽  
Randomized Design ◽  
Wide Range

The Seaweed (Padina antrillarum) abundantly found in the coastal region of Eastern Sri Lanka. Seaweed contains a wide range of nutrients and hormones for plant growth. An experiment was conducted at the Crop Farm, Eastern University, Sri Lanka to assess the effects of seaweed (Padina antrillarum) extract on the flowering of roses var. ‘Local’ from July to September 2020. Four treatments were used in this experiment viz. 10% (T1), 20% (T2), and 30% (T3) seaweed extracts with control treatment (T4). Treatments were applied at once-a-week interval. The experimental design was a completely randomized design with three replications. All other management practices were followed uniformly. Measurements were done at once a month. Collected data were analyzed. The higher performances in measured parameters (plant height, leaf area, plant biomass, number of flowers per plant) were observed in T2. It showed that once a week application of 20% seaweed liquid extract had the potential to increase growth and flower production in roses. It might be due to the presence of nutrients and the growth hormones in seaweed extract and optimum concentration of seaweed extract received by plants at T2. In T1 and T3, plants received sub-optimum and higher concentration respectively. It could be the reason for the lowest performances in these treatments. From this experiment, it could be concluded that once a week application of 20% seaweed liquid extract of Padina antrillarum is suitable to increase flowering in roses of treatment tested.  

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