scholarly journals ANALYSIS OF WATER PERFORMANCE AT GRAHA JANGLI INDAH SEMARANG

2021 ◽  
Vol 4 (1) ◽  
pp. 1-10
Author(s):  
Suharyanto Suharyanto ◽  
Budiono Joko Nugroho ◽  
Sri Sangkawati
Keyword(s):  
Water Management ◽  
Discharge Rate ◽  
Water Discharge ◽  
Clean Water ◽  
Water Network ◽  
Domestic Water ◽  
Average Percentage ◽  
Management Board ◽  
Resilience Index ◽  
And Performance

The clean water network system is made to meet the needs of clean water in a city or community and for Graha Jangli Indah, clean water management is carried out by the Graha Jangli Indah Water Management. The purpose of this study is to find out the performance of clean water network services managed by the Water Management Board of Jangli Indah by analyzing the network service performance of the network's ability to meet the minimum needs of customers in terms of water discharge. In addition, an analysis of customer satisfaction was carried out on the Water Management of Graha Jangli Indah. the level of clean water service network at Graha Jangli Indah is still unsatisfactory, with a reliability of only around 49.33%, with the length of time the system will be in a state of failure of about 5.83 months, and with a very average percentage deficit discharge rate which varies between 1.12% to 102.11%. So that the system's resilience index or ability to return to normal conditions is 0.17 (1.03 times failure divided by 5.83 months). This is because the average discharge at Graha Jangli Indah has an average water discharge value of 17.8 m3 per month which is still below the standard water demand based on Domestic Water Needs for the Big Cities category of 20.4 m3. For the calculation of the value of have rated the performance of Graha Jangli Indah Management services with very good value. With 7 indicators entering quadrant II so that conclusions can be drawn by the Importance and Performance Analysis (IPA) method, the performance of the Graha Jangli Indah Water Management is quite satisfying.

scholarly journals Essential Preparations for compliance and contingency options

2017 ◽  
Author(s):  
Debra DiCanna
Keyword(s):  
Water Management ◽  
Ballast Water ◽  
Water Discharge ◽  
Performance Standards ◽  
Coast Guard ◽  
State Control ◽  
Start Up ◽  
Marine Environmental Protection ◽  
And Performance ◽  
Ballast Water Management

Even though the Ballast Water Management Convention (BWMC) (referred to herewith as the Convention) has been ratified and a few ballast water management systems (BMWS) have received US Coast Guard (USCG) type approval, many shipowners and operators are reticent to begin the significant process of planning for compliance with ballast water discharge and performance standards. This delay is most probably due to the uncertainty in the implementation dates in the BWMC and limited options of USCG type approved BWMS. These delays may result in significant ramifications for shipowners if the process for compliance is not fully evaluated. This process includes selecting, designing installation, purchasing, start-up and commissioning of BWMS. Clarity on the implementation schedule should be determined at the 71st session of the Marine Environmental Protection Committee of the International Maritime Organization (IMO MEPC 71) and allow shipowners to plan for compliance. An important aspect of implementation is developing a strong compliance plan. A central part of compliance is identifying possible problems and contingency options that may alleviate any potential port State control issues. The paper will identify possible problems and contingency measures to ensure ship operations are not impacted. An important issue is that the BWMC does not include provisions for contingency measures. The paper will also outline needed contingency measures to be addressed by the IMO in any amendments to the BWMC.

scholarly journals Strategic Human Resource Management In Clean Water Management At District Jeneponto, South Sulawesi

2019 ◽  
pp. 48
Author(s):  
Herlina Sakawati ◽  
Muh Nur Yamin ◽  
Sulmiah Sulmiah ◽  
Widyawati Widyawati
Keyword(s):  
Water Management ◽  
Water Supply ◽  
Organizational Performance ◽  
Secondary Data ◽  
Strategic Human Resource Management ◽  
Clean Water ◽  
Appraisal System ◽  
South Sulawesi ◽  
And Performance ◽  
Recruitment And Selection

Problems of water supply in coastal areas become difficult job for government, especially local government. Required a variety appropriate strategies to cope with water scarcity. one of them with the implementation of HRM with a view to improving the performance of employees that will impact on organizational performance. This study was conducted to see the HRM strategy to applied water management in Jeneponto. Descriptive qualitative research method was chosen to manage the data collected from observation, interviews and secondary data collection.  The results from this research is that HRM strategies in the management of clean water as seen from indicators such as: 1) Recruitment and Selection System; 2) Training and Development; 3) Performance and Appraisal System; and 4) Compensation System; 5) Retention Plans and Culture has not been able to improve performance in the management of clean water in Jeneponto district, South Sulawesi. Lack of attention to education and training influences employee creativity in finding clean water supply solutions. In addition, the delay in provision of employee benefits reduces motivation and performance of employees in providing solutions to problems that occur in the management of PDAMs in Jeneponto district.

scholarly journals Flood and Drought Resilience Measurement at Andir Urban Village, Indonesia

2020 ◽  
Vol 148 ◽  
pp. 06005
Author(s):  
Arief Sudradjat ◽  
Anindrya Nastiti ◽  
Kevin Barlian ◽  
Made Sandhyana Angga
Keyword(s):  
Water Management ◽  
Water Supply ◽  
Supply And Demand ◽  
Clean Water ◽  
Urban Village ◽  
Geographic Structure ◽  
Drought Resilience ◽  
Resilience Index ◽  
Local Residents ◽  
Traditional Approaches

Flooding and drought are two of the most common environmental problems in Andir Urban Village due to its location near a tributary of the Citarum River, its concave geographic structure, and excessive groundwater usage. Traditional approaches that focus on constructing water management structures cannot provide a sustainable solution to these persistent problems in Andir. Thus, increasing resilience in dealing with flooding and drought effectively from different aspects is important. This study uses the Flood Resilience Index (FRI) via several indicators divided into five aspects, i.e., natural, physical, economic, social, and institutional. The Drought Resilience Index (DRI) measures the reliability and vulnerability of clean water supply and demand for local residents. The flood resilience level of Andir Urban Village is low with an FRI of 2.69/5, while the drought resilience level of Andir Urban Village is very low with a DRI of only 2.565/10. The measurements of FRI and DRI in a developing country needs to be done carefully by developing local indicators that are unique and relevant to the country’s setting.

Modeling role of rice paddy field and its implication in water management

2013 ◽  
Vol 13 (5) ◽  
pp. 1317-1323
Author(s):  
Hyunju Park ◽  
Tschungil Kim ◽  
Hyunwoo Kim ◽  
Mooyoung Han
Keyword(s):  
Water Management ◽  
East Asia ◽  
Rainwater Harvesting ◽  
Discharge Rate ◽  
Water Discharge ◽  
Land Development ◽  
Rice Paddy ◽  
Paddy Fields ◽  
Rice Paddy Fields

The objective of this study is to develop a conceptual model to analyze the role of rice paddy fields in water management and to use the model to suggest an appropriate countermeasure for land development. Rice paddy fields are traditionally seen in East and South-East Asia, particularly in areas that have a considerable seasonal variation in rainfall resulting in flooding and drought. One of the advantages of these fields in East Asia is that the period of rainfall is similar to the period of the water demand of the rice paddy. In this study, the water management functions of rice paddy are evaluated using rainfall–storage–discharge (RSD) modeling. The RSD system is a type of onsite structure used for rainwater management. In this study, the area of the rice paddy is assumed to be 10,000 m2, and the rice paddy is considered to perform the storage and catchment functions of a rainwater harvesting system. The RSD system can be used for analyzing the outflow rate according to the rice paddy area and the peak outflow curves for a 100-year period; further, the effectiveness of the RSD system in reducing the final water discharge rate through a rice paddy is evaluated.

GOVERNMENT RESPONSIBILITY TO PROTECT PEOPLE’S RIGHTS OVER THE CLEAN WATER

2017 ◽  
Vol 1 (1) ◽  
pp. 38
Author(s):  
Muhammad Nadzir
Keyword(s):  
Water Management ◽  
Human Life ◽  
The State ◽  
Responsibility To Protect ◽  
Clean Water ◽  
State Control ◽  
Government Responsibility ◽  
The Republic ◽  
The Government

Water plays a very important role in supporting human life and other living beings as goods that meet public needs. Water is one of the declared goods controlled by the state as mentioned in the constitution of the republic of Indonesia. The state control over water indicated that water management can bring justice and prosperity for all Indonesian people. However, in fact, water currently becomes a product commercialized by individuals and corporations. It raised a question on how the government responsibility to protect the people's right to clean water. This study found that in normative context, the government had been responsible in protecting the people’s right over the clean water. However, in practical context, it found that the government had not fully protected people's right over clean water. The government still interpreted the state control over water in the form of creating policies, establishing a set of regulations, conducting management, and also supervision.

New analytical solution for the study of hydraulic interaction between Alpine tunnels and groundwater

2003 ◽  
Vol 174 (5) ◽  
pp. 441-448 ◽  
Author(s):  
Jean-Christophe Maréchal ◽  
Pierre Perrochet
Keyword(s):  
Analytical Solution ◽  
Surface Waters ◽  
Discharge Rate ◽  
Water Discharge ◽  
Rate Condition ◽  
Type Curves ◽  
Discharge Rates ◽  
The Alps ◽  
Surface Monitoring ◽  
Tunnel Discharge

Abstract The present paper addresses two major problems encountered during tunnel drilling and related to the hydraulic interaction with surrounding groundwater bodies. The first one is the prediction of water discharge into the tunnel, as a function of the geometric and hydrogeological data. The second problem is related to the assessment of the draining effects on surface waters (springs, lakes, wetlands). Surface monitoring campaigns are costly and evaluating their duration is a sensitive question. Both problems are tightly related and depend on aquifer dynamics. It is shown that in a geological context with steeply dipping structures, nearly vertical, inducing series of aquifers and aquicludes such as in the Alps, the drainage of the aquifer by the tunnel can be modelled by the analytical solution of Jacob and Lohman [1952] for artesian wells. First developed for horizontal, confined unsteady flow towards a vertical well with constant drawdown, it is adapted here to a horizontal tunnel by a rotation of π/2. The main difference between this solution and more classical Theis’ solutions is that a constant drawdown condition replaces the constant discharge rate condition. Hence, a relation is obtained for the time-dependent discharge rate Q(t) detected at the tunnel after drilling, as a function of aquifer transmissivity (T), storage coefficient (S), initial drawdown (so) and tunnel radius (ro). This analytical solution is compared to a finite-elements model simulating a draining tunnel in a simplified 2D vertical cross-section. The comparisons show that the decay of the tunnel discharge can be divided into two periods. During the first period, radial drawdown develops around the tunnel and there is excellent match between analytical and numerical results. Tunnel discharge results from the decompression of rock and water (storage effects) as a response to the sudden initial drawdown at the tunnel location. During the second period, the drawdown cone reaches the aquifer limits (lateral and upper) and numerical discharge rates decrease faster than analytical rates because of hydraulic heads decline at the aquifer limits. In the Alps, such trends were observed for the discharge rates into the Simplon and Mont-Blanc tunnels, and the analytical solution of Jacob and Lohman [1952] was applied to the first discharge period to evaluate aquifer transmissivity and storage coefficients. As indicated by the simulations, and corroborated by field observations, the analytical solution is only valid during a first period after tunnel opening, the duration of which scaling with the inverse of the aquifer diffusivity (T/S). In the second part of the paper, dimensionless type-curves are presented to enable rapid evaluation of the time where a given drawdown is observed at a given distance from the tunnel. Accounting for tunnel geometry (radius and depth) and aquifer parametres (T and S), these curves could for instance help in practice to determine when surface waters would start to be affected by a draining tunnel underneath. Although neglecting the boundary effects discussed in the first part of the paper, these type-curves demonstrate the great inertia of mountain aquifers, and could be used to adjust the duration of surface monitoring campaigns according to the specific tunnel/aquifer settings.

scholarly journals FAKTOR DOMINAN DAN STRATEGI PENYEDIAAN AIR BERSIH DI DESA RAWAN AIR BERSIH PADA KECAMATAN BAITUSSALAM KABUPATEN ACEH BESAR

2018 ◽  
Vol 1 (4) ◽  
pp. 903-914
Author(s):  
Erwin Ferdinansyah ◽  
Azmeri Azmeri ◽  
Eldina Fatimah
Keyword(s):  
Water Supply ◽  
Ground Water ◽  
Water Discharge ◽  
Water Source ◽  
Dominant Factor ◽  
Clean Water ◽  
Water Infrastructure ◽  
Service Areas ◽  
Drinking Water Supply System ◽  
Water Problems

Abstract: Baitussalam sub-district is one of the areas vulnerable to water in the district of Aceh Besar. During this time the District community Baitussalam it difficult to obtain a continuous flow of clean water. This is due to the remote location of the water source so as to obtain clean water, people need a lot of time and effort. Villagers District of Baitussalam were not served with clean water Regional Water Company (PDAM) Tirta Mountala, using ground water as clean water. Problems arise when the dry season, the ground water level has decreased, even loss of water discharge at all. This study aims to identify the dominant factors that may affect the distribution of water supply and analyze the strategy of water supply clean water prone villages in the subdistrict of Aceh Besar district Baitussalam. This research was conducted with questionnaires and interviews. Observations were made on the District community Baitussalam unserved water from PDAM Tirta Mountala. The results showed that the dominant factor affecting the distribution of clean water in District Baitussalam is an area that will be served by PDAM Tirta Mountala, and the allocation of increased funding water infrastructure. Strategy clean water supply in villages prone to water in the District Baitussalam is a set of service areas by PDAM Tirta Mountala towards building water treatment, then allocate increased funding water infrastructure, improve the discharge source of clean water related water needs in each village, and do development of Drinking Water Supply system (SPAM). Abstrak: Kecamatan Baitussalam merupakan salah satu kawasan rawan air bersih yang ada di Kabupaten Aceh Besar. Selama ini masyarakat Kecamatan Baitussalam mengalami kesulitan untuk mendapatkan air bersih yang kontinu mengalir. Hal ini disebabkan karena lokasi yang jauh dari sumber air sehingga untuk mendapatkan air bersih, masyarakat membutuhkan banyak waktu dan tenaga. Masyarakat desa Kecamatan Baitussalam yang tidak terlayani air bersih Perusahaan Daerah Air Minum (PDAM) Tirta Mountala, menggunakan air tanah sebagai air bersih. Permasalahan timbul saat musim kemarau, muka air tanah mengalami penurunan, bahkan kehilangan debit air sama sekali. Penelitian ini bertujuan untuk mengindentifikasi faktor dominan yang dapat mempengaruhi distribusi penyediaan air bersih dan menganalisis strategi penyediaan air bersih di desa rawan air bersih pada Kecamatan Baitussalam Kabupaten Aceh Besar. Penelitian ini dilakukan dengan penyebaran kuesioner dan wawancara. Pengamatan dilakukan pada masyarakat Kecamatan Baitussalam yang belum mendapatkan pelayanan air dari PDAM Tirta Mountala. Hasil penelitian menunjukkan bahwa faktor dominan yang mempengaruhi distribusi air bersih di Kecamatan Baitussalam adalah luas wilayah yang akan dilayani oleh PDAM Tirta Mountala, dan alokasi dana peningkatan prasarana air bersih. Strategi penyediaan air bersih di desa rawan air bersih pada Kecamatan Baitussalam adalah menetapkan wilayah pelayanan oleh PDAM Tirta Mountala terhadap bangunan pengolahan air bersih, kemudian mengalokasikan dana peningkatan prasarana air bersih, meningkatkan debit sumber air besih terkait kebutuhan air pada masing-masing desa, dan melakukan pengembangan Sistim Penyediaan Air Minum (SPAM).

scholarly journals DEVELOPMENT OF CLEAN WATER DISTRIBUTION NETWORK SYSTEM IN GENTENG SUB-DISTRICT BANYUWANGI USING EPANET 2.0 PROGRAM

2019 ◽  
Vol 3 (2) ◽  
pp. 172
Author(s):  
Ayu Rahmad Jayanti ◽  
Ririn Endah Badriani ◽  
Yeny Dhokhikah
Keyword(s):  
Discharge Capacity ◽  
Distribution System ◽  
Water Distribution ◽  
Water Discharge ◽  
Distribution Network ◽  
Water Distribution Network ◽  
Public Works ◽  
Network System ◽  
Clean Water ◽  
Simulation Results

The clean water distribution in the Genteng Subdistrict, Banyuwangi Regency is included in the service area of the Zone 1 PDAM tile unit. The 60 liters/second reservoir discharge capacity is obtained from Sumber Umbul Sari in the Glenmore District. The distribution of clean water in Zone 1 is still less than 70% of the area served, as the installed discharge capacity is estimated to be insufficient. In order to achieve the distribution goal, a network system must be developed by adding direct debits and planning a new pipeline. The Epanet 2.0 program simplifies the calculation of pipeline networks by integrating elevation data, network maps, pipeline specification, and load. The analysis of the simulation results was conducted using the Public Works Minister's hydraulic parameter standards 2007. Planning of a distribution network and a cost budget in 2029 were done to estimate the water supply needs and budgets required. The hydraulic simulation results based on the analysis of the pressure of all joints are in accordance with the standard, while the analysis of the velocity in pipe is less standard. The need for water discharge in 2029 is 71.6 liters/second. In Kembiritan Village, the construction of distribution pipes with an additional reservoir unit was planned. The planned pipe dimensions in the development area were 25 mm at 796 meters, 50 mm at 4062 meters, and 75 mm at 1518 meters. The cost of planning a clean water distribution system in 2029 is Rp. 1,431,375,000.00. Distribusi air bersih di Kecamatan Genteng Kabupaten Banyuwangi merupakan wilayah pelayanan Zona 1 PDAM unit Genteng. Kapasitas debit reservoir sebesar 60 liter/detik berasal dari sumber umbul sari di Kecamatan Glenmore. Pendistribusian air bersih di wilayah Zona 1 masih kurang dari 70% wilayah yang terlayani, karena diperkirakan kapasitas debit yang terpasang kurang mencukupi. Untuk memenuhi target pemerataan distribusi perlu pengembangan sistem jaringan dengan penambahan debit dan perencanaan jaringan pipa baru. Program Epanet 2.0 memudahkan dalam perhitungan jaringan perpipaan dengan mengintegrasi data elevasi, peta jaringan, spesifikasi pipa dan debit. Analisis hasil simulasi menggunakan standar parameter hidrolis Permen PU 2007. Perencanaan pengembangan jaringan distribusi dan anggaran biaya pada tahun 2029 guna memperkirakan debit kebutuhan air dan anggaran biaya yang dibutuhkan. Hasil simulasi hidrolis berdasarkan analisis tekanan semua junction telah sesuai standar, sedangkan analisis kecepatan masih di bawah standar. Kebutuhan debit air tahun 2029 sebesar 71,6 Liter/detik. Pengembangan pipa distribusi direncanakan di Desa Kembiritan dengan tambahan satu unit reservoir. Dimensi pipa rencana di wilayah pengembangan digunakan diameter 25 mm sepanjang 796 m, diameter 50 mm sepanjang 4062 m dan diameter 75 mm sepanjang 1518 m. Biaya perencanaan sistem distribusi air bersih tahun 2029 sebesar Rp. 1.431.375.000,00.

scholarly journals EAST RIVER BATTLE FOR SHEEN: SKIMMING AN OIL SHEEN IN A 3- TO 5-KNOT CURRENT

2001 ◽  
Vol 2001 (2) ◽  
pp. 1431-1434
Author(s):  
Dennis E. Connelly ◽  
Dennis J. McCarthy ◽  
John E. Westerlind
Keyword(s):  
New York ◽  
Current Flow ◽  
Discharge Rate ◽  
Water Discharge ◽  
Cooling Water ◽  
High Discharge ◽  
East River ◽  
Discharge Canal ◽  
High Discharge Rate ◽  
Set Up

ABSTRACT This paper explores the challenges involved with the recovery of oil from a discharge canal with limited access and high relative currents. In March 1999, a sheen was observed in the cooling water discharge canal of Consolidated Edison's 2.5-million kilowatt generating station in Queens (New York City), New York At the time the sheen was discovered, the entire station had been shut down for several months for a maintenance outage. As the tide rose and fell in the East River, into which the discharge canal emptied, the oil sheen moved in and out of a 1,000-foot long tunnel connecting the generating station to the canal. The major challenges to the recovery and removal of the oil sheen were: (1) the low over head of the discharge tunnel and canal support girders, which prevented getting a skimmer into the tunnel and canal; (2) the high discharge rate of the station's cooling water pump; and (3) skimming the sheen in a 3-to 5-knot current. Consolidated Edison is a member of Clean Harbors Cooperative, L.L.C, which was brought in to remove the sheen. This was accomplished utilizing two JBF Scientific DIP Belt Skimmers, which were set up parallel to the current flow, and deflection booming.

Suppression of Sheet Cavitation Inception by Water Discharge Through Slit

1987 ◽  
Vol 109 (1) ◽  
pp. 70-74 ◽  
Author(s):  
Hiroharu Kato ◽  
Hajime Yamaguchi ◽  
Shinzo Okada ◽  
Kohei Kikuchi ◽  
Masaru Miyanaga
Keyword(s):  
Boundary Layer ◽  
Flow Visualization ◽  
Discharge Rate ◽  
Water Discharge ◽  
Cavitation Inception ◽  
Suppression Effect ◽  
Sheet Cavitation ◽  
Effect Of Water

This paper studies experimentally the suppression effect of water discharge on incipient and developed sheet cavitation on a hemispherical headform. The water is discharged tangentially from a slit upstream of a cavitating region into the boundary layer on the headform. Increasing the discharge rate, the length of the sheet cavity becomes shorter and then the cavity is suppressed completely. Flow visualization test shows the generation of wavy motion in the boundary layer which disturbs the separated zone, resulting in disappearance of the sheet cavitation.

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