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Ratna Musa
lecture in master civil engineering at indonesian moeslim university
Civil Engineering, Building, Construction & Architecture Control & Systems Engineering Engineering Industrial & Manufacturing Engineering Transportation

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STUDY OF BAROMBONG RAW WATER NEEDS, GOWA REGENCY Ratna Musa; Abd Karim Hadi Hadi; Andi R Tenri Pakkua Tenri Pakkua
UNDERPASS Journal of Civil Engineering, Applied Sciences, and Technology Vol. 4 No. 2 (2020): JURNAL FLYOVER Volume 4 Issue 2 November 2020
Publisher : Moeslim Indonesian University (UMI)

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Abstract

Clean water is a primary human need where there are many uses such as drinking, cooking, bathing and others. Population growth in an area that is increasing year by year has resulted in a large number of public demands related to the need for clean water. The purpose of writing is to find out the availability of raw water and the need for clean water in the Barombong sub-district in the next 5 (five) years. In analyzing the data, there are several stages that are passed, namely analyzing the population for the next five years using arithmetic, geometric and linear regression methods, and analyzing raw water sources using the Fj method. Mock and raw water needs. After analyzing the data, it can be described that the potential need for raw water in the Barombong sub-district for the next 5 (five) years is very sufficient where the availability of raw water is 176.01 Ltr/s while the need is 118.24 Ltr/s.
Roughness (MANNING) COEFFICIENT VALUE STUDY WITH HEC-RAS SOFTWARE VERSION 4.0 Ratna Musa; Hanafi Ashad; Trifandy Musafir Wellang
UNDERPASS Journal of Civil Engineering, Applied Sciences, and Technology Vol. 2 No. 1 (2018): Journal Flyover Vol 2 Issue 1 Juni 2018
Publisher : Moeslim Indonesian University (UMI)

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Swadaya ponds are located in Lamasi District, Luwu Regency, South Sulawesi Province with a total area of ​​384 hectares of ponds. The Swadaya pond drainage system consists of a carrier channel and a discharge channel with water sources for irrigating the pond area obtained from fresh water sources taken from the Central Minanga river and salt water sources taken directly from the sea (Teluk Bone). The simulation was carried out on the Swadaya pond channel in Luwu Regency with Unsteady conditions using the HEC-RAS 4.0 software (Hydrologic Engineering Center-River Analysis System) issued by the US Army Corps of Engineering. What is reviewed with various quantities of Q80 and Qmin annual discharges for upstream Boundary Conditions and for downstream conditions using the influence of tidal changes, this is to find out how big the hydraulic changes are in the Swadaya pond channel. From the simulation for the boundary conditions Q80 and Qmin shows that: The greater the discharge in the upstream channel conditions, the greater the discharge, velocity, and depth of flow in the channel. At high tide, the flow discharge from upstream (Central Minanga River) to the primary carrier channel is smaller than at low tide. Meanwhile, the discharge that enters the secondary channel is greater when the water is in high tide. As for the effect of the Manning coefficient on discharge, time and distance, the smaller the discharge (Qmin = 13.99 m3/s) in upstream conditions, the effect of high tide will be greater and the distance from downstream will be further (s = 2680.64 m) and the greater the discharge (Q80 = 21.37 m3/s) in the upstream, the smaller the influence of the tide and the closer the distance from the downstream (s = 2665.33 m). In order for the availability of water to meet the needs of pond water in the Swadaya pond channel, a trial and error test is carried out on the slope of the secondary and tertiary canals.
STUDY OF ACTIVITIES USING PDAM CLEAN WATER IN TAMALATE DISTRICT MAKASSAR CITY Arie Satriadi Sadewa; Ratna Musa
UNDERPASS Journal of Civil Engineering, Applied Sciences, and Technology Vol. 2 No. 1 (2018): Journal Flyover Vol 2 Issue 1 Juni 2018
Publisher : Moeslim Indonesian University (UMI)

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Abstract

One of the most important urban infrastructure is clean water as well as basic human needs. Its use is not only limited to household needs but also for public, social and economic facilities. One way to obtain clean water is to use PDAM services. The Regional Drinking Water Company (PDAM) is a business entity that processes and serves the drinking water needs of the community. One of the problems that have and will arise in the management of clean water is that the ability of PDAMs as clean water providers is generally still limited both in terms of coverage and quality of service. This study aims to determine the economic and demographic characteristics of the population as well as the most dominant PDAM water use activity in households in Tamalate District. The desired quantity of water is to meet the standards of the needs of the metropolitan city. The desired continuity of flow is to meet 24 hours per day. The desired water quality is to meet the applicable standards of physical parameters. The results showed that based on field observations of the dominant economic characteristics, the highest activity was bathing, continuity and quality were still not effective because the quantity of water still did not meet all customer needs, continuity of flow still did not flow 24 hours per day for all customers, and still there are customers who complain about the quality of the clean water consumed in terms of turbidity, smell and taste.
Co-Authors Abd Karim Hadi Hadi Andi R Tenri Pakkua Tenri Pakkua Arie Satriadi Sadewa Hanafi Ashad Trifandy Musafir Wellang