scholarly journals ANALISIS KEBUTUHAN AIR BERSIH DI KECAMATAN SELAT NASIK KABUPATEN BELITUNG PROVINSI BANGKA BELITUNG TAHUN 2017

Author(s):  
Ika Kusumawati

<p align="justify">Kecamatan Selat Nasik is one of the subdistricts in Belitung Regency with limited avaliability of clean water. It is because the district located in the archipelago with limited clean water sources. The purpose of this study is to determine the potential of clean water. The analysis of this study are: clean water analysis, population growth analysis, and water availability analysis. The final result shows availability of clean water both 466.366 liter per person per day (in 2018) and 519.611 liter per person per day (in 2023). While the necessity of clean water required both 586.260 liter per person per day (in 2018) and 556.470 liter per person per day (in 2023). In other words, the needs of clean water in Kecamatan Nasik until 2023 can not been able to cover necessity of clean water population yet.</p>

Author(s):  
Ilkka Pollari

Megatrends of population growth, urbanization and global warming are making it more and more difficult to find clean water for our needs. Global demand for fresh water grows at 2-3%/year while availability of fresh water has not been increasing. Regional differences in the growth rates are big. The main sustainability objective in water processes is balancing the demand – supply equation. Human impact on the atmosphere seems to aggravate the water availability problem. Over two thirds of global fresh water need is for agriculture. Current practices and technologies in managing water streams are not enough in the future.


2016 ◽  
Vol 30 (2) ◽  
pp. 184 ◽  
Author(s):  
Irwan Valentinus Sihotang ◽  
S Sudarmadji ◽  
Ig.L. Setyawan Purnama ◽  
Muhammad Baiquni

Water availability is immensely affected by the correlation among land use change, rainfall change, and population growth. One of analysis tools to discover how the correlation goes on in a hydrological process is by dynamic modelling approaching. The dynamic modelling result can be used for a substructure in decisions making as supports to maintain water availability for fulfilling domestic needs, agriculture, and Micro-Hydro Power (MHP). The aims of this study are to evaluate water availability as a long-term impact on land use change, rainfall change, and population growth with dynamic modelling and as a scenario which is required as basic information to make decisions in maintaining water availability. Analysis method which is applied in this study is dynamic modelling to long term evaluate water availability and validate using Mean Average Percentage Error method (MAPE). The analysis showed that the combination of rainfall of 2312.09 mm/yr, rainfall intensity of 0.340 mm/h, population growth rate of 7.23%, declined forest area of 1.513 ha/yr, declined shrub/unproductive land of 318.113 ha/yr, increased agricultural land of 7.627 ha/yr, and increased settlement area of 0.473 ha/yr, yielded the estimation of the fail in sustaining water sources in 2090 or the next 79 years from 2011 since the water deficit has reached approximately 3,249,881.02 m3. The value of validation modelling with MAPE method is 8.90, it is a dynamic modelling which is managed nearly the same with actual condition.


2018 ◽  
Vol 12 (01) ◽  
pp. 15
Author(s):  
Mochtar Nova Mulyadi ◽  
Elida Novita ◽  
N. Nurhayati

The limitation to get clean water causes the community to utilize the existing water resources. One of the villages needs clean water during the dry season in Mojo Village Padang District, Regency Lumajang. The need for clean water was increasing as the population growth. The population of the Mojo Village was 3,901 people. The needs of clean water were supplied from Jirun wellspring. The Jirun wellspring was located 20 meters lower than a residential area. The government of Lumajang Regency installed a hydrant pump to solve the problem for distributing the clean water from Jirun wellspring to the residential area. The flow rate of Jirun wellspring reached 22.91 l/s. The index of clean water criticality was 3.44% namely “uncritical” that indicated Mojo Village was abundant water availability. Keywords: dongki pump, water balance


Author(s):  
Jae-Seok Ha ◽  
Bong-Gu Cho ◽  
Jung-Ryeol Jang ◽  
Jung-Ju Bea
Keyword(s):  

2020 ◽  
Vol 006 (02) ◽  
pp. 202-205
Author(s):  
Aulia Tia Ruslan ◽  
Abdul Juli Andi Gani ◽  
Muhammad Rozikin

This study analyze about development of village potential through capacity buildingin Tunjungtirto village, Singosari Sub-District, Malang district. The author analyze that development of village potential through capacity building has five main elements, knowledge in the form of developing educational potential, religious potential, agriculture potential, farm potential and village library. Than leadership by the village head, cooperation between villages, community in the form of village business entity (BUMDesa), travel conscious group and agriculture group. Than online information program which is conducted by village head to facilitate submitting information about village activities to villagers or submitting community suggestions and critisms by online. Leadership by the village head in accordance with the law number 6 of 2014 about village has regulate local village authority. Collaboration between Tunjungtirto village with Lang Lang village about the use of clean water sources. Travel conscious group (Pokdarwis) has develop creativity through mural village and dolanan village to attract tourist.


2021 ◽  
Vol 9 (E) ◽  
pp. 1224-1227
Author(s):  
Mulyadi Mulyadi ◽  
Zaenab Zaenab ◽  
Ain Khaer ◽  
Zrimurti Mappau ◽  
Adriyani Adam

BACKGROUND: Based on the results of laboratory examinations, initial samples taken from one of the clean water sources (dug wells) in Biringere Village, North Sinjai District, results showed that the water sample contained high enough metal ions such as Fe, Mn, hardness, and organic substances which did not meet the requirements as clean water because it still contained levels of Manganese (Mn) 1.68 mg/l. Meanwhile, for organic substances (KMnO4), it is 9876 mg/l. AIM: The purpose of the research was to determine the effectiveness of multimedia filters in improving quality of clean water from the parameters of Mn and KMnO4 in clean water sources (dug wells).. METHODS: The type of research conducted is quasi-experimental by made a filtering processing method with a “Up Flow” flow system, using media consisting of silica sand, zeolite, resin (pine resin), and active carbon in PVC tubes. The population in this study were all dug wells in North Sinjai district. The samples were dug wells located on Biringere Village, North Sinjai District. The samples examined in Center for Environmental Health and disease control of Makassar. RESULTS: The results obtained were that there was a significant change in manganese (Mn) levels of 0.49 mg/l (80.37%). Meanwhile, organic substances (MnO4) amounted to 17.38 mg/l (70.02%). CONCLUSION: Decreasing levels of manganese (Mn) in well water after going through the multimedia filter process above show that the manganese content has met the standard requirements of the Minister of Health Regulation No. 32 of 2017.


2018 ◽  
Vol 50 (2) ◽  
pp. 205
Author(s):  
Koh Liew See ◽  
Nayan Nasir ◽  
Saleh Yazid ◽  
Hashim Mohmadisa ◽  
Mahat Hanifah ◽  
...  

Clean water supply is a major problem among flood victims during flood events. This article aims to determine the sites of well water sources that can be utilised during floods in the District of Kuala Krai, Kelantan. Field methods and Geographic Information Systems (GIS) were applied in the process of selecting flood victim evacuation centres and wells. The data used were spatial data obtained primarily, namely the well data, evacuation centre data and flood area data. The well and evacuation centre data were obtained by field methods conducted to determine the position of wells using global positioning system tools, and the same for the location of the evacuation centres. Information related to evacuation centres was obtained secondarily from multiple agencies and gathered into GIS as an evacuation centre attribute. The flood area data was also obtained via secondary data and was digitised using the ArcGIS software. The data processing was divided into two stages, namely the first stage of determining the flood victim evacuation centres to be used in this research in a structural manner based on two main criteria which were the extent to which an evacuation centre was affected by the flood and the highest capacity of victims for each district with the greatest impact to the flood affected population. The second stage was to determine the location of wells based on three criteria, namely i) not affected by flood, ii) the closest distance to the selected flood victim evacuation centre and iii) located at different locations. Among the main GIS analyses used were locational analysis, overlay analysis, and proximity analysis. The results showed that four (4) flood evacuation centres had been chosen and matched the criteria set, namely SMK Sultan Yahya Petra 2, SMK Manek Urai Lama, SMK Laloh and SK Kuala Gris. While six (6) wells had been selected as water sources that could be consumed by the flood victims at 4 evacuation centres in helping to provide clean water supply, namely Kg. Keroh 16 (T1), Kg. Batu Mengkebang 10 (T2), Lepan Meranti (T3), Kg. Budi (T4), Kg. Jelawang Tengah 2 (T5) and Kg. Durian Hijau 1 (T6). With the presence of the well water sources that can be used during flood events, clean water supply can be distributed to flood victims at the evacuation centres. Indirectly, this research can reduce the impact of floods in the future, especially in terms of clean water supply even during the hit of a major flood.


The development of dams and sediments ponds which is the hydrological planning to improve the aspect of irrigation, river engineering, foundations, soil mechanics, environmental engineering, hydrology and hydraulics. The management difficulty for a decision maker of environmental impacts which is the river's condition does not change for the better in direct response to reduction in nutrient concentration. The aims of this study to evaluate the design of reservoirs building and analysing the water flow and volume of sediment storage in the Binanga Aron River, Samosir, North Sumatera Indonesia. The hydraulic modelling on sediments ponds will ensuring the availability of sufficient volume of water, river flows and water quality status. The primary channel building is equipped with a door to prevent the rinsing water flow back to the primary channel and prevent the entry of rinsing water containing sediment into the canal. Then, the insufficient water availability from the river that is used as a water source in the irrigation area, then the irrigation area is still possible to supply water from nearby water sources. From the result, the volume of water recorded 1,977 ltr/s/ha with simultaneously delivery system. It is necessary to adjust the position of the dam, where the channel flow depth in the sedimentary bag building at least 0.236 m, the discharge ranges from 0.078 - 0.263 m3 /sec. The water availability planned of water sources into artificial reservoirs in the Binanga Aron River to maintain the water supply


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