Environmental Engineering
http://repository.president.ac.id/xmlui/handle/123456789/19
Environmental Engineering2024-03-28T10:22:46ZTHE EVALUATION OF WATER DISTRIBUTION NETWORK USING EPANET 2.0 FOLLOWED BY THE CALCULATTION OF THE POPULATION GROWTH AND WATER DEMANDS UNTIL 2030 (CASE STUDY: COMORO, ZONE I, TIMOR-LESTE)
http://repository.president.ac.id/xmlui/handle/123456789/3239
THE EVALUATION OF WATER DISTRIBUTION NETWORK USING EPANET 2.0 FOLLOWED BY THE CALCULATTION OF THE POPULATION GROWTH AND WATER DEMANDS UNTIL 2030 (CASE STUDY: COMORO, ZONE I, TIMOR-LESTE)
Soares, Thalia de-Fatima Salsinha
In Dili the capital of Timor-Leste, supplying clean water in urban areas is the responsibility of Serviço de Água e Saneamento (SAS). The study locates in Comoro, Zone I, Dili, and consists of 1,900 households. The service area uses groundwater as the water source with the transmission of pipelines to two types of reservoirs; rectangular with a volume of 1000 and cylinder with a volume of 600 . This study aims to evaluate and plan distribution network systems in Zone I in terms of hydraulics and operating systems by applying condition modeling using the Epanet 2.0 software. The development of the water distribution network (WDN) begins with projecting the population following the 10-year planning using the Geometric, Arithmetic, and Exponential methods. The collection data is through observations in the study area as primary data. Secondary data is collecting data from SAS, such as the map of water pipelines, piping data, pump data, reservoir data, and number of consumers from the service area. Processing data is the use of MS. Excel to calculate the population size, water demand and analyzing data through QGIS by identifying the water pipelines. Followed by Epanet 2.0, with WDN data, the result is then evaluated with the Regulation of the Minister of Public Works No. 18 Year 2007 (No.18/PRT/M/2007). The Epanet 2.0 results show that the WDN in Zone I has met the pressure requirement from No.18/PRT/M/2007 with an average flow of 19.57 liters/second. However, water velocity still needs improvements since it did not meet the criteria it suggests modifying the pipes into a smaller diameter and addition of pump stations and reservoirs at the location where the velocity did not meet the criteria. For the projection year in 2030, the estimated population is 26,057, with an average daily total water requirement of 48.46 liters/second.
2020-01-01T00:00:00ZENVIRONMENT AND SOCIAL ASPECT OF WASTE BANK MANAGEMENT IN CIKARANG INDONESIA (CASE STUDY: JaMiLah WASTE BANK)
http://repository.president.ac.id/xmlui/handle/123456789/3235
ENVIRONMENT AND SOCIAL ASPECT OF WASTE BANK MANAGEMENT IN CIKARANG INDONESIA (CASE STUDY: JaMiLah WASTE BANK)
Fauziah, Friska
One of the government's efforts to handle and process waste is by initiating waste banks in several districts/cities. One of them is Bekasi Regency, namely the JaMiLah waste bank. This research aims to measure the waste generation and waste composition of JaMiLah waste bank and to determine knowledge and attitude factors influence toward awareness of society around JaMiLah waste bank. Using the quantitative method with the environmental aspect population is Bekasi regency waste bank, and the population of the social aspect is Residents of Graha Cikarang that chosen purposively. The result of this research is, the average yield of waste generated in the JaMiLah waste bank is 18.82 kg/person and 5.97 l/person. The largest waste generation was on 13 June 2020, as much as 31.64 kg/person. These results indicate that on 13 June 2020, this is the first weighing carried out returned by the JaMiLah waste bank after a long period of not weighing it during the month of Ramadan. The waste composition is dominated by cardboard waste because RW 17 has several shops or other businesses. The influence of knowledge on awareness of JaMiLah waste bank H1 is accepted, with a significant value of 0.002. The influences of attitude on awareness of JaMiLah waste bank H2 is accepted, with a significant value of 0.000. The influences of knowledge and attitude on awareness of JaMiLah waste bank H3 is accepted, with a significant value of 0.000. Based on the results of the environmental aspects and social aspect that have been analyzed, it can be concluded that the average waste that enters the JaMiLah waste bank is 18.82 kg/person and 5.97 l/person, the largest waste generation is 31.64 kg/person, the composition of waste in the JaMiLah waste bank is dominated by cardboard. Knowledge and attitude partially and simultaneously have a significant influence on awareness of the JaMiLah waste bank.
2020-01-01T00:00:00ZDRAINAGE SYSTEM EVALUATION USING EPA SWMM 5.1 SOFTWARE (CASE STUDY: SETIA ASIH VILLAGE, TARUMAJAYA SUB-DISTRICT, BEKASI DISTRICT)
http://repository.president.ac.id/xmlui/handle/123456789/3234
DRAINAGE SYSTEM EVALUATION USING EPA SWMM 5.1 SOFTWARE (CASE STUDY: SETIA ASIH VILLAGE, TARUMAJAYA SUB-DISTRICT, BEKASI DISTRICT)
Lestari, Diah Ayu
Inadequate drainage conditions in storing rainwater can cause the runoff to become overflow to the surface of the street and can cause flood. According to the Head of the Bekasi District Disaster Management Agency, poor drainage in residential areas, one of which occurs in Tarumajaya District, causes flooding during the rainy season. The purpose of this study is to identify existing drainage channels, to determine the amount of runoff, and to analyze the drainage network that is suitable for the runoff in Setia Asih Village was used by EPA SWMM 5.1. The data collection was used primary data was obtained in direct observation namely, drainage dimension. The secondary data was used daily maximum rainfall and land use maps. The analysis data using analysis frequency, Chi-square test, Smirnov-Kolmogorov test and SWMM 5.1 software. Based on the result, the planned rainfall is log-pearson III was 126.38 mm with a rain distribution was 39.42 mm/hour. In existing conditions, the total average infiltration value is 0.2 mm and the total average runoff discharge of subcatchment is 0.17 m3/s. In the simulation result, the total average discharge simulation is 0.13 m3/s and there was 8 channels overflow runoff capacity and 11 channels potential over runoff capacity. Based on the resimulation results with optimal dimensions the total average discharge is 0.24 m3/s bigger than the discharge simulations and existing the means is the optimal dimension can accommodate the total runoff in Setia Asih Village and there were no channels with over runoff capacity and potential over runoff capacity.
2020-01-01T00:00:00ZDETERMINING THE BEST INTAKE BLENDING SCENARIO OF SEAWATER AND TREATED SEWAGE FOR POTENTIAL REVERSE OSMOSIS DESALINATION IMPROVEMENT (CASE STUDY: UNTUNG JAWA ISLAND)
http://repository.president.ac.id/xmlui/handle/123456789/3233
DETERMINING THE BEST INTAKE BLENDING SCENARIO OF SEAWATER AND TREATED SEWAGE FOR POTENTIAL REVERSE OSMOSIS DESALINATION IMPROVEMENT (CASE STUDY: UNTUNG JAWA ISLAND)
Apsari, Asyifa
The seawater desalination using Reverse Osmosis (SWRO) has overcome the
increasing potable demand in Untung Jawa Island. However, the drawbacks are
linked to high operational and maintenance requirements. The decline of seawater
ecosystem harmony around the intake pump and brine discharge area also worsens.
Thus, the reuse of treated sewage (TS) blended with seawater (SW) intake for
decreasing feed water pollutant load is becoming a viable option to tackle this
problem from the source. The digital simulation for SWRO modeling was necessary
to be carried on due to time and cost efficiency, plant availability, and experiment
complexity. The study’s objectives are to validate the simulation software, predict
the potential improvement of SWRO by intake blending model, and determine the
best intake blending scenario that suitable for SWRO Untung Jawa Island. The
method of this study is based on secondary data collection and digital data processing
to simulate existing condition, potential plant integration, and ten variations of intake
blending using WAVE Design Software. It continued with the plot-graph and
reduction percentage data analysis of SWRO variables from intake blending model.
The output shows that existing condition result from software simulation is in the
range of secondary data. Plant distance and capacity make the plant integration
possible; however, the additional utilization of Sewage Treatment Plant (STP)
advanced treatment is required. Through the intake blending model, the higher
percentage of TS has potentially reduce SWRO technical variables. The study
concludes that WAVE Design Soft are was applicable for SWRO digital modeling.
The intake blending model is expected to improve SWRO performance and seawater
ecosystem harmony. The best SW:TS percentage for SWRO Untung Jawa Island
intake is 70:30 (15.97:6.85 m3/h) with potential reduction of 30% brine rate and 19%
brine TDS, 40% seawater intake rate, 13.9% overall feed water rate, 32.8 RO energy
consumption.
2020-01-01T00:00:00Z