scholarly journals Identifikasi Keberadaan Intrusi Air Laut pada Kawasan Pemukiman di Sekitar Pesisir Pantai Daerah Desa Sukajaya Lempasing Kecamatan Teluk Pandan

2020 ◽  
Vol 4 (2) ◽  
pp. 110
Author(s):  
Daniel Radityo ◽  
Alviyanda Alviyanda ◽  
Happy Christin Natalia ◽  
Ahmad Hamdani ◽  
Angga Ahya Huseina ◽  
...  

Sukajaya Lempasing is one of the villages located in Teluk Pandan District, Pesawaran Regency, Lampung Province. Sukajaya Lempasing Village was chosen as a place for research because of its position on the east coast which is directly adjacent to Lampung Bay, of which its groundwater is suspected to be contaminated by seawater, causing the water to be brackish. Field observation, data collection, as well as lithology and air control are needed to see the geological and hydrogeological conditions of this area. Based on the physical and chemical parameters, the well of Hamlet 7 has groundwater and there is no indication of sea water intrusion because the area is very close to hills which may become a catchment area so that groundwater flows out to sea with high pressure. Based on the salinity, TDS, and conductivity values ​​obtained, the well that experienced seawater intrusion was the AJR3 well because it is located closest to the coastline and is supported by an alluvial sediment aquifer that has moderate to high aquifer productivity. The quality of water based on physical parameter data from wells in Hamlet 1, Hamlet 7 and sample AJR4 Hamlet 3 is classified as clean and suitable for daily use. The lithology in the form of alluvial deposits allows seawater intrusion, especially in areas close to the shoreline such as the AJR3 well.

Improved use of groundwater is often causing intrusion of seawater. The intrusion of seawater also takes place in coastal areas. In this analysis, the distribution and the levels of intrusion in the research area (Kanyakumari district, Tamilnadu, India) are determined. The test was done using random samples at a period of 15 days in which 30 different samples were taken in 5 different locations with a certain distance from the seashore, then chemical analysis including pH, electrical conductivity (EC), total dissolved solids (TDS), chloride, sodium, calcium, magnesium, carbonate, and bicarbonate water quality parameters were carried out. Chloride Bicarbonate Ratio was used for the calculation of the penetration rate of the seawater, and subsequently chloride and electric conductivity were defined as type and quality of water characters. The results showed that the shallow aquifer was intruded by seawater at several sample levels, which was included in the normal to high intrusion classification. The sea water intrusion was classified as freshwater to saltwater, the concentrations in chloride ranged from 159 to 6021 mg / L. The ratio of bicarbonate chloride was 0.28 to 21.46, normally above 15.5, indicating that groundwater was disturbed. As a result, in comparison to standards or other seawater intrusion indicators, Rajakamangalam-well 1 (RM-W1) has been affected by seawater intrusion highly.


2021 ◽  
Vol 36 (3) ◽  
pp. 47-57
Author(s):  
Waqas Shafiq ◽  
Hadayat Ullah ◽  
Muhammad Zaheer ◽  
Mubashir Mehmood ◽  
Umer Farooq ◽  
...  

The study area is located in the arid section of Punjab province, Pakistan. The accessibility of freshwater is the main problem in this area. The area is mainly flat and alluvial deposits are present down to 800 m. The groundwater is not fit for drinking because of its salinity. Hence, it is essential to mark the transition between fresh water and saltwater. Resistivity models were used to locate freshwater areas. The saltwater areas are between 10 and 30 m deep. Salt flats and clayrich deposits are visible on resistivity maps and were identified by low resistance values. After linking resistivity data and maps, it is determined that the south portion of the area has a freshwater aquifer, especially at a depth of 200 m. At this depth, the quality of water is very good, regardless of its mild salinity in some areas. The margin between salty and freshwater is set to no degree. This is dependent upon the recharge and usage of an aquifer. Groundwater pollution poses a severe threat to the city’s residents. Results from the physio-chemical analysis of the water samples confirm the presence of arsenic in excessive amounts in water samples and are outside the limits set by the WHO and NDWQS. Just two out of 10 samples are within the limits for safe drinking water. The results of this research are valued for groundwater management and the installation of tubular wells in freshwater areas for households and irrigation purposes.


Geografie ◽  
2005 ◽  
Vol 110 (3) ◽  
pp. 210-228
Author(s):  
Tomáš Hrdinka

Anthropogenic lakes constitute one of the most significant genetic groups of lakes in Czechia. The water quality of these lakes formed through flooding of mined-out pits can be influenced by a number of factors such as physical and chemical properties of exploited rock, characteristics of the mine surroundings, secondary anthropogenic interference and time elapsed since their flooding. The quality of water determines their potential utilization, such as in water supply, agriculture, industry, recreation, nature preservation, etc. This article compares five anthropogenic lakes in mining pits after exploitation of different kind of rocks and on the basis of lake basin characteristics and physical and chemical analysis of water formulates the possibilities of their potential utilization in the context of the local landscape.


Author(s):  
Hasan Eleroğlu ◽  
Arda Yıldırım ◽  
Ahmet Şekeroğlu

The source of water, the content and quality is very important used in every stage of poultry production. The birds must have continuous access and supply of quality water without any antibiotic and bacteriological residues. Sensory, physiochemical properties and chemical composition must be taken into consideration while assessing water quality. The quality of water used in the production of conventional or organic poultry has impacts on the poultry health, quality of products and human health. The impact of water quality is higher on the functionality of water in live organism and the consumption amount varies depending on many factors. A source of water which is used in organic production is also important with their characteristics. Different water sources may be used for animal consumption, such as springs, shallow wells, deep and artesian wells, lakes and creeks. Organic farms should regularly submit water samples to a laboratory for testing of water quality against the possibility of contamination of water sources. Water contaminants could create equipment problems and restrict the amount of water available for consumption therefore affects the quality of products. There are many aspects to the broad problems of water quality and different physical and chemical applications used to ensure sustainability of water quality for human and animal use. In this review, it will be focused on the quality of the water to be used in the organic poultry production and quality enhancing physical and chemical applications.


2021 ◽  
Vol 30 (1) ◽  
pp. 107-112
Author(s):  
Germán Augusto MURRIETA-MOREY ◽  
Harvey SATALAYA-ARELLANO ◽  
Clint Sting RAMÍREZ-CHIRINOZ ◽  
Luciano Alfredo RODRÍGUEZ-CHU

Ponds covered with duckweeds release nutrients rapidly, causing problems of eutrophication of the water which can reduce water clarity and quality, creating a hypoxic or anoxic ‘dead zone' lacking sufficient oxygen to support most organisms. In the present study, the sudden mortality of black-band myleus Myloplus schomburgkii Jardine, 1841 drove the investigate of factors that caused the death of the specimens registered in a fish pond in the Peruvian Amazon. After the tallying of dead fish, it was revealed that sixty individuals (75% of the total population) of M. schomburgkii had died. The taxonomic identification of the aquatic plant revealed the presence of “duckweeds” locally named in Peru as “lenteja de agua” Lemna minor distributed throughout the pond. Physical and chemical water parameters revealed low levels of oxygen, acid water, and high levels of nitrate and phosphate. Since duckweeds cannot be completely eliminated from waters that are conducive to its growth and require periodic harvesting to prevent matting, proper management strategies therefore become critical to guarantee good quality of water in the pond and avoid black-band myleus deaths due to imbalances in physical and chemical parameters.


PROMINE ◽  
2021 ◽  
Vol 9 (1) ◽  
pp. 45-54
Author(s):  
Shalaho Dina Devy ◽  
Ibnu Hasyim

Bengalon is located in East Kutai Regency, East Kalimantan Province. Bengalon is included in the Samarinda-Bontang groundwater basin. The development of agricultural and industrial areas, followed by an increase in residential areas, will cause an increase in the water demand. This study aims to determine the groundwater potential of alluvial areas using the resistivity geoelectric method. The resistivity survey resulted in subsurface lithology, shallow groundwater conditions in the form of depth, thickness, and location of the aquifer as well as the type of groundwater quality. There are 10 locations for geoelectric data collection using the 2D geoelectric method. The results showed that the majority of the aquifers were alluvial deposits consisting of sand and sandy clay. The resistance indicating groundwater is 1 - 4 Ω m, at a depth of 10 – 50 m with a thickness varying from 10 – 20 m which has been dominated by sand. The presence of sea water intrusion in aquifers causes the quality of groundwater to tend to be brackish because the research location is in a swamp area bordering the coast.


2020 ◽  
Vol 21 (2) ◽  
pp. 174-182
Author(s):  
Surya Cipta Ramadhan Kete ◽  
Suprihatin Suprihatin ◽  
Suria Darma Tarigan ◽  
Hefni Effendi

ABSTRACTThe availability of clean water is one of the main problems for the people in Kendari City. Overutilization of groundwater can cause seawater intrusion to groundwater. This study aims to identify and map seawater intrusion distribution to shallow groundwater based on water quality data. Sampling was obtained from 100 dug wells of the inhabitant (n=100) in March-July 2019 with a variation of the distance from the beach 0.04-5.52 km and the elevation of Groundwater (MAT) between 0.43-30.01 MASL. The distribution of shallow groundwater is mapped on the criteria to the value of Electrical Conductivity (DHL) at the standard temperature of 25 °C. The analysis showed that the average groundwater temperature was 29.28 °C, DHL was 393.52 µmhos, Total Dissolved Solid (TDS) was 196.98 ppm, and pH was 6.31. Shallow groundwater, which has been varied intruded with high intruded (26.26%), rather high intruded (14.14%), medium intruded (32.32%), low intruded (6.06%) and not intruded (21.21%). The correlation between distance from the coast to the value of DHL was not significantly correlated (R2 = -0.49), while groundwater level elevation has a significant correlation (R2 = 0.71). The geological factors of alluvial deposits, which generally have low permeability and slope to flat topography, cause seawater intrusion to shallow groundwater.Keywords: sea water intrusion, shallow groundwater, Kendari City ABSTRAKKetersediaan air bersih merupakan salah satu masalah utama bagi masyarakat kota Kendari. Sumber air bersih masyarakat diperoleh dari airtanah. Pemanfaatan airtanah yang berlebihan dapat menyebabkan terjadinya intrusi air laut terhadap airtanah. Penelitian ini bertujuan untuk mengidentifikasi dan memetakan sebaran intrusi air laut terhadap airtanah dangkal berdasarkan data kualitas air. Pengambilan sampel diperoleh dari sumur gali penduduk sebanyak 100 sampel (n=100) pada periode Maret-Juli 2019 dengan variasi jarak dari pantai 0,04-5,52 km dan elevasi muka airtanah (MAT) antara 0,43-30,01 mdpl. Hasil analisis menunjukan bahwa rerata suhu airtanah sebesar 29,28 °C, DHL sebesar 393,52 µmhos, Total Dissolved Solid (TDS) sebesar 196,98 ppm dan pH sebesar 6,31. Airtanah dangkal secara umum telah terintrusi dengan variasi meliputi terintruksi tinggi (26,26%), terintrusi agak tinggi (14,14%), terintrusi sedang (32,32%), terintrusi sedikit (6,06%) dan tidak terintrusi (21,21%). Korelasi antara jarak dari pantai terhadap nilai DHL tidak signifikan (R2 = -0,49), sedangkan MAT memiliki korelasi signifikan (R2= 0,71). Faktor geologi berupa endapan alluvial yang memiliki permeabilitas umumnya rendah dan berada pada topografi landai hingga datar menyebabkan terjadinya intrusi air laut terhadap airtanah dangkal.Kata Kunci: intrusi air laut, airtanah dangkal, Kota Kendari


1998 ◽  
Vol 37 (2) ◽  
pp. 333-341
Author(s):  
Gerhard Bjørnsen ◽  
Rolf Gimbel ◽  
Hans-Dieter Spangenberg

To guarantee drinking water of high quality not only the drinking water treatment must be of high standards but also the quality of water resources should be the best possible. Therefore, pollution control and pollution risk management in the catchment areas of water resources are important parts of an overall water management concept. This includes the assessment of physical and chemical parameters as well as bacteriological parameters, especially hygienic parameters. A concept for an integrative consideration of drinking water treatment and quality management of water resources is presented.


2011 ◽  
Vol 35 (6) ◽  
pp. 707-719 ◽  
Author(s):  
A. Adediji ◽  
J.A. Adewumi ◽  
T.E. Ologunorisa

High demand for water is driving potentially unsustainable practices and competition for water resources between various sectors in developing areas. As a result of improved quality of life and population growth, increase in demand for fresh water is anticipated in all African countries in all sectors, over the next 10 years. This study examines the effects of dry season irrigation farming (fadama) on the physical and chemical quality of the River Osin which receives both surface and subsurface flow from irrigated areas in the Upper Osin Catchment, Kwara State, Nigeria. A total of 90 samples were obtained from Upstream (UPS), Irrigated area (IRG) and Downstream (DNS) segments of the river in the dry and rainy seasons. Water samples were analysed for pH, conductivity, total dissolved solids (TDS), suspended solids, dissolved organic matter (DOM), pesticides (ionic basic type), Na+, K+, Mg2+,Cl-, NO3-, PO43-, Ca2+ and HCO3-. The results indicate that values of agricultural pollutants such as pesticides (CuSO4), NO3- and PO43- were significantly higher at IRG than at UPS, and decreased slightly at DNS, while all other anions and cations except DOM reached peak values at DNS. Agricultural pollutants (NO3-, PO43- and pesticides) contributed significantly to poor water quality observed at IRG and DNS segments but the values are within acceptable tolerance range at UPS. The findings further indicate that irrigation practice degrades the quality of water at IRG and DNS segments. As a result, a holistic approach to agriculture and water resource management is recommended to ensure sustainable water resources development in the catchment.


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