Claim Missing Document
Check
Articles

Found 5 Documents
Search
Journal : Journal of Sustainable Infrastructure

Turbidity Reduction by Using Variations of Filtration Media Sizes (Case Study of Treated Water PT. X Jakarta) Vembrio, Leonardus Alvin Widi; Zahra, Nurulbaiti Listyendah; Sarwono, Ariyanti; Putri, Natasya Hikmat; Rofiah, Rofiah
Journal of Sustainable Infrastructure Vol. 2 No. 2 (2023): Importance of Public Health and Waste Management
Publisher : Fakultas Perencanaan Infrastruktur, Universitas Pertamina

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61078/jsi.v2i2.20

Abstract

Turbidity is one of the main water quality parameters in drinking water quality. One way to reduce turbidity levels is by filtration. The filtration unit in the water treatment plant must use appropriate media so that the processed raw water meets World Health Organization (WHO) standards. WHO states that the turbidity of processed water before disinfection is 1 NTU. This research was conducted to know the efficiency of filtration processing with various media in reducing the concentration of turbidity in raw water. This study used three types of media, namely 50% silica sand with a mesh size of 12-16 and 50% silica sand with a mesh size of 8-12 (C), 100% silica sand with a mesh size of 12-16 (K), and 100% silica sand in mesh size. 8-12 (B). Porosity value for each sample C, K, and B is 0.412; 0.423; and 0.388. The detention time at maximum discharge for samples C, K, and B was 3.6, respectively; 3.76; and 3.45 minutes. The flow rates used for media samples C, K, and B were 4125 L/s and 2500 L/s, respectively. The removal efficiency produced by the highest turbidity was obtained in medium C with values of 90.8% and 89.9%, respectively. Meanwhile, media B gave the lowest turbidity removal efficiency, namely 86.3% and 86.4%. The results of all variations of the media used have met WHO standards, where the processed results have produced turbidity concentrations of 0.25 - 0.32 NTU.
Utilization of Sludge from the Communal Wastewater Treatment Plant (WWTP) in the Asrama Dinas Lingkungan Hidup (DLH) Jagakarsa of South Jakarta City as Basic Material for Organic Fertilizer Marsono, Muhammad Ridho; Zahra, Nurulbaiti Listyendah; Sofiyah, Evi Siti
Journal of Sustainable Infrastructure Vol. 2 No. 2 (2023): Importance of Public Health and Waste Management
Publisher : Fakultas Perencanaan Infrastruktur, Universitas Pertamina

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61078/jsi.v2i2.22

Abstract

Asrama DLH Jagakarsa has a communal wastewater treatment plant (WWTP) that produces sludge that has not been treated. Asrama DLH residents directly apply the sludge from the communal WWTP as fertilizer for plants. Fecal sludge contains organic substances that provide nutrients to plants. However, there is a possibility that it still contains pathogenic bacteria and metals that can be harmful to plants. This research aims to utilize the fecal sludge from Asrama DLH Jagakarsa WWTP as organic fertilizer with additional ingredients in the form of humic acid. During fertilizer manufacturing, the bacteria and metals are removed. The analysis used includes the composting process conditions analysis, characteristics tests to determine the content of feces and fertilizers, and analysis of the application to plants. Analysis of the conditions in the composting process is the analysis of the pH value of organic fertilizers. Characteristic tests include soil variation (V1), WWTP sludge (V2), and organic fertilizer (V3). Analysis of the application of plant growth was carried out by testing the variation of soil 100% (P1), soil 80% + 20% fecal sludge (P2), and soil 80% + 20% organic fertilizer (P3). The laboratory analysis includes the analysis of nitrogen, phosphorus, potassium (NPP), and water content which will be compared with the quality standard of the Decree of the Minister of Agriculture Number 261 of 2019. The plant that is used as an indicator of the success of organic fertilizer in plant growth is the kale plant. The best value was obtained in the variation of organic fertilizer (V3), namely the NPP content and water content, respectively, which were 4.52%, 2.57%, 0.05%, and 19.84%. This shows that organic fertilizer increases NPP elements and plant growth.
Optimalization of Management System of Municipal Solid Waste Transportation (Case Study: Jakarta, Indonesia) Ulhasanah, Nova; Ulhaq, Muhamad Hisyam Dhiya; Zahra, Nurulbaiti Listyendah
Journal of Sustainable Infrastructure Vol. 3 No. 1 (2024): Mitigation Strategies for Sustainable Infrastructure: Balancing Development and
Publisher : Fakultas Perencanaan Infrastruktur, Universitas Pertamina

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61078/jsi.v3i1.24

Abstract

West Jakarta has the farthest distance for the waste transportation process compared to other municipalities in DKI Jakarta. The number of population and garbage which always increases every year can make the West Jakarta area experience new problems with the waste transportation system. In existing conditions, there are 68 out of 195 trucks in 174 temporary trash shelter that do not have a volume of waste that can immediately fill containers in 1 day of garbage collection. The trucks have to wait for further collection until the truck containers are filled. In addition, there are 31 trucks which transports waste in temporary waste shelter with a generated amount that exceeds the capacity of the truck. This can cause the waste to settle at the temporary trash shelter or the truck will carry more waste than it’s capacity. Therefore, the goal to be achieved in this design is to optimizing the waste transportation system in West Jakarta with SCS from a technical and economic point of view. After evaluating the existing conditions and analyzing the alternative choices made, it was found that the system can be optimized using the Hauled Container System (HCS) and the Stationary Container System (SCS) with 1 and 2 transportation rit / day. The number of trucks could be reduced from 195 to 73, with 70 trucks doing 2 rit / day and 3 trucks doing 1 rit / day. The number of drivers can be reduced from 195 to 143 drivers, with each driver only working for 1 rit. There was a decrease in the cost of diesel fuel / month from Rp873,158,589 to Rp853,612,500 and could reduce the driver's wages from Rp711,366,825 to Rp521,669,005 each month. The total transportation cost for diesel fuel and employee wages in a month is Rp1,375,281,505 or Rp209,243,909 cheaper than the existing conditions.
The Effect of Filter Media Grain Size on the Headloss and Backwash Duration at PT PAM Lyonnaise Jaya (PALYJA) Putri, Septiani Eka; Zahra, Nurulbaiti Listyendah; Sarwono, Ariyanti; Nastiti, Almira Davina; Sekarsari, Dinda
Journal of Sustainable Infrastructure Vol. 3 No. 1 (2024): Mitigation Strategies for Sustainable Infrastructure: Balancing Development and
Publisher : Fakultas Perencanaan Infrastruktur, Universitas Pertamina

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61078/jsi.v3i1.28

Abstract

This research is about the effect of filter media grain size on the headloss and backwash duration of rapid sand filter unit. The purpose of this study is to analyze the effect of filter media grain size on headloss and backwash duration. In this research, filter media with 3 different sizes are used, which are assessed based on the effective size (ES) and uniformity coefficient (UC) parameters. Data collection consists of sieve analysis of media filter, headloss test, turbidity test, and TSS test. The Headloss test is carried out on a laboratory scale using a prototype filter unit. Sieve analysis of media filter, turbidity test, and TSS test of backwash water are carried out at IPA 2 PT PAM Lyonnaise Jaya. The results show that each value of headloss for large filter media (ES = 1.29 mm; UC = 1.40), small filter media (ES = 0.87 mm; UC = 1.51), and mixed filter media (ES = 0.89 mm; UC = 1.49) are 4 cm, 5.5 cm, and 4.6 cm. The optimum backwash duration on large filter media, small filter media, and mixed filter media are 15 minutes, 13 minutes, and 14 minutes.
Antibiotic Resistance in Domestic Wastewater: Addressing Treatment Inefficiencies and the Imperative for Sanitation System Enhancement Sofiyah, Evi Siti; Ridhosari, Betanti; Zahra, Nurulbaiti Listyendah; Sastroredjo, Suharti
Journal of Sustainable Infrastructure Vol. 3 No. 2 (2024): Advances and Challenges in Sustainable Infrastructure
Publisher : Fakultas Perencanaan Infrastruktur, Universitas Pertamina

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61078/jsi.v3i2.34

Abstract

The increasing detection of antibiotic-resistant bacteria (ARB) and antibiotic resistance genes (ARGs) in domestic wastewater represents a pressing global environmental and public health challenge. Wastewater treatment plants (WWTPs), while designed to remove conventional pollutants, are increasingly recognized as reservoirs and hotspots for the persistence and horizontal gene transfer (HGT) of ARGs among microbial communities. This study aims to explore the mechanisms underlying bacterial antibiotic resistance, evaluate the limitations of conventional treatment processes –particularly disinfection methods such as chlorination – in effectively removing ARB and ARGs, and assess the implications for sanitation management in Indonesia. A systematic literature review (mini-review format) was conducted to synthesize recent findings on ARB/ARGs presence in WWTPs and the performance of existing treatment technologies. Results show that ARGs can persist even after disinfection, especially in extracellular forms, and that chlorination may, in some cases, promote ARGs release through cell lysis. Furthermore, several resistant strains demonstrate tolerance to standard chlorine doses. In Indonesia, where domestic wastewater treatment coverage and compliance remain inadequate, the uncontrolled discharge of partially treated or untreated wastewater exacerbates the spread of antibiotic resistance in aquatic environments. This study concludes that existing treatment systems are insufficient to address antibiotic resistance risks and emphasizes the urgent need for improved sanitation infrastructure, monitoring, and targeted treatment technologies.