Article Per Year (5 Year)
p-Index From 2021 - 2026
1.704
P-Index
This Author published in this journals
All Journal Jurnal Teknologi Lingkungan Universitas Trisakti Jurnal Reka Lingkungan Journal of Regional and City Planning Journal of Engineering and Technological Sciences Jurnal Sains Dan Teknologi Lingkungan EKOLOGIA : Jurnal Ilmiah Ilmu Dasar dan Lingkungan Hidup Jurnal Teknik Lingkungan INDONESIAN JOURNAL OF URBAN AND ENVIRONMENTAL TECHNOLOGY LIMNOTEK Serambi Engineering JURNAL REKAYASA KIMIA & LINGKUNGAN Journal of Engineering and Technological Sciences
Prayatni Soewondo
Department of Environmental Engineering, Bandung Institute of Technology,
Aerospace Engineering Agriculture, Biological Sciences & Forestry Humanities Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Earth & Planetary Sciences Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Mathematics Social Sciences Transportation

Published : 18 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 18 Documents
Search

 1   2 
KINETIKA PENYISIHAN FOSFAT DARI AIR LIMBAH LAUNDRY MENGGUNAKAN SISTEM CONSTRUCTED WETLAND DENGAN EQUISETUM HYMALE Munuqy, Wulanda Anggi; Soewondo, Prayatni
Ekologia: Jurnal Ilmiah Ilmu Dasar dan Lingkungan Hidup Vol 24, No 2 (2024): Ekologia : Jurnal Ilmiah Ilmu Dasar dan Lingkungan Hidup
Publisher : Universitas Pakuan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33751/ekologia.v24i2.10885

Abstract

The increasing number of laundry businesses leads to an increasing amount of wastewater produced. The resulting laundry waste contains phosphates that if disposed of without treatment can provide eutrophication in the body of water. This study aims to lower phosphate levels found in laundry wastewater in the Dipatihukur area, Bandung using a constructed wetland system using the Equisetum hymale plant. Lowering phosphate levels using Equisetum hymale plants with variations of stay time of 1, 2, 3, 4, and 5 days with batch system. The results obtained showed that phosphate levels in waste before treatment of 10,846 mg/L. The value is greater than the standard of quality set by the government of 0.2 mg/L. Test Processing with Constructed Wetland shows that the plant Equisetum hymale can set aside phosphate significantly. The lowest phosphate rate after processing reached 0.227 mg/L with 96.75% contact time for 5 days. Phosphate preliminary rate by plants can be reduced with time of contact with the plant. The mechanism is the process of adsorption by the plant Equisetum hymale by referring to the first-order kinetic model by showing the value of regression coefficient (R2) 0.9014.
Pemetaan Transparansi Air di Waduk Saguling dengan Menggunakan ANN dan Landsat 8 Magfhira, Azzahra; Soewondo, Prayatni; Wijayasari, Winda; Rohmat, Faizal
Jurnal Serambi Engineering Vol. 10 No. 3 (2025): Juli 2025
Publisher : Faculty of Engineering, Universitas Serambi Mekkah

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

The decline in water transparency in the Saguling Reservoir indicates deteriorating water quality due to increasing pollutant loads from domestic, industrial, agricultural, and aquaculture activities. This study aims to predict water transparency using an ANN model, integrating remote sensing data from Landsat 8 (2013-2024) and in-situ measurements from 12 sampling points. The analysis began with correlation tests, which revealed weak to moderate relationships between transparency and other variables. Subsequent simple and multiple linear and logistic regression analyses produced weak correlations, with the highest R² of 0.1853 observed in multiple logistic regression. The Random Forest algorithm was applied to identify the most influential variables. The selected predictors included Bands 3, 4, 5, and 7, as well as temperature, EC, and TSS. These variables were used as inputs for the ANN model, which demonstrated high performance with an R² of 0.8514, explaining 85.14% of the variability in water transparency. The prediction results were visualized in a distribution map, indicating a predominance of transparency class IV (0-2.5 m) across the reservoir. This suggests limited light penetration due to high pollutant loads. The study shows that integrating remote sensing and ML enables effective large-scale water quality monitoring and supports sustainable water resource management.
Selection of Alternative Domestic Wastewater Treatment Technology with Using Life Cycle Assessment (LCA) Approach: Case Study Settlement Area of Riverbank Karang Mumus of Samarinda City, East Kalimantan Noor, Rininta Triananda; Soewondo, Prayatni
INDONESIAN JOURNAL OF URBAN AND ENVIRONMENTAL TECHNOLOGY Volume 1, Number 2, April 2018
Publisher : Universitas Trisakti

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25105/urbanenvirotech.v1i2.2825

Abstract

Aims: This study aims to analyze and select wastewater treatment technology that can be applied to riverbank settlement areas through environmental impact evaluation using LCA. The technology option is selected through the physical condition of the settlement environment on the river banks and then analyzed descriptively by making a flow chart of the processing technology options and compared with the wastewater treatment technologies that have been applied to residential areas of river banks or other swamp settlements. Methodology and results: The technology options will be analyzed and evaluated for potential environmental impacts of the construction and operation phase, using LCA through SimaPro8.4 software with an impact analysis using CML2 Baseline 2000. The impacts analyzed include acidification, eutrophication, global warming, ozone depletion. The results showed that the selected technological options were septic tanks, tripikon-s, and biofilter. In an environmental impact analysis it is known that the construction phase is a phase that contributes greatly to the potential environmental impacts. The potential for acidification and global warming are the dominant potential impact from the three technology options, with a contribution of 2.01x10-10 kgSO2-eq for the potential of acidification and 1.11x10-10 kgCO2-eq for global warming potential with biofiltration as a main contributor. The eutrophication potential is caused by nutrients (Total Nitrogen and Phosphorus) that come out along with the treated wastewater at the operating stage. The greatest eutrophication potential is generated on the Tripikon-S, at 2.3x10-10 kgPO4-eq. The potential for ozone depletion, biofiltration contributes significantly to 3.09x10-12 kgCFC-11-eq.  Conclusion, significance and impact study: Based on the comparison of technology, it is known that Tripikon S has the potential for environmental impact is quite minimal and can be an option to be applied to the river banks.
The Characteristics of Domestic Wastewater from Office Buildings in Bandung, West Java, Indonesia VA, Vandith; Setiyawan, Ahmad Soleh; Soewondo, Prayatni; Putri, Dyah Wulandari
INDONESIAN JOURNAL OF URBAN AND ENVIRONMENTAL TECHNOLOGY Volume 1, Number 2, April 2018
Publisher : Universitas Trisakti

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25105/urbanenvirotech.v1i2.2826

Abstract

Domestic wastewater generated from various types of buildings has been recognized to be different to some extent. This research aimed to know the quality, quantity, fluctuation of quality, and fluctuation of quantity of domestic wastewater discharged from office buildings. The composite samples were taken from two office buildings. The black water and gray water were taken from Building A with number of people 53 persons, and the mixed wastewater was taken both from Building A and Building B with number of people 900 persons. The fluctuation and quantity of wastewater were measured every hour from 7 am until 4 pm during the working time. The results showed that the quality of wastewater from office building contained 176 to 238 mg/L COD, 73.06 to 106.51 mg/L TN, and 3.66 to 7.70 mg/L TP with the average of C:N:P ratio was 100:42:2.56. Quantity of wastewater discharged from office buildings were from 39.61 to 49.93 liter/person/day. COD concentration changed significantly during the working time with mean ± standard (252.5±89). The quantity of wastewater varied over time and the peak discharge for black water and gray water were 2.85 litter/person/hour and 3.74 liter/person/hour, which occurred during the beginning of working time and the praying time of muslim Indonesian culture. It suggests that the domestic wastewater from office buildings has specific characteristics and it contains high concentration of nutrient that is required appropriate advanced technology for treating this kind of wastewater.
ORGANIC REMOVAL IN DOMESTIC WASTEWATER USING ANAEROBIC TREATMENT SYSTEM-MBBR WITH FLOW RECIRCULATION RATIO AND INTERMITTENT AERATION Subroto, Michael; Prayogo, Wisnu; Soewondo, Prayatni; Setiyawan, Ahmad Soleh
INDONESIAN JOURNAL OF URBAN AND ENVIRONMENTAL TECHNOLOGY VOLUME 5, NUMBER 3, OCTOBER 2022
Publisher : Universitas Trisakti

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25105/urbanenvirotech.v5i3.12776

Abstract

Aim: The modified Small-scale Domestic Sewage Treatment Plant (SDSTP) reactor with anaerobic fixed bed- aerobic Moving Bed Biofilm Reactor (MBBR) is implemented to find the optimum condition for organic degradation related to recirculation and intermittent aeration practices with the purpose to comply with the governmental regulation standard.  Methodology and Results: This research have been done with the artificial wastewater with characteristic similar to the sewage treatment plant (STP) of Telkom company with ratio C:N:P of characterized domestic wastewater is 252.40:85.42:3.01 that consists of glucose, NH4Cl, potassium dihydrogen phosphate, potassium nitrate, and sodium nitrite (NaNO2). Reactor design related with attached biomass in media until 2478.56 mg MLVSS.L-1 with the growth kinetics rate (μ) of 0.4691 day—1. The artificial wastewater is applied the determine the optimum variation of flow recirculation and periodic aeration in specific Hydraulics Retention Time (HRT) and Organic Loading Rate (OLR). In this research, the optimum recirculation ratio for organic degradation is 26.40 L.h-1 and the optimum aeration frequency variation is  12 hours in intermittent frequency with the maximum efficiency of organic degradation of 76.10% with the degradation efficiency real domestic wastewater application from STP Telkom company is 83.09%. Conclusion, significance and impact study:  Stover-Kincannon model is the best model with highest accuracy rate to model the degradation performance of organic compounds by the anaerobic fixed bed- aerobic MBBR SDSTP with determination coefficient 0.8623 and also degradation coefficient 38.121 day-1 compared with other models studied in this research.
Kinerja Upflow Anaerobic Fixed Bed Reactor dengan Media Penunjang Batu Apung dalam Penyisihan Organik dan Pembentukan Biogas dari Biowaste Fase Cair Nursetyowati, Prismita; Soewondo, Prayatni; Handajani, Marisa
Jurnal Rekayasa Kimia & Lingkungan Vol 10, No 4 (2015): Jurnal Rekayasa Kimia & Lingkungan
Publisher : Chemical Engineering Department, Syiah Kuala University, Banda Aceh, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23955/rkl.v10i4.3304

Abstract

Dalam penelitian ini, biowaste yang digunakan adalah sampah pasar. Sampah pasar menyumbang sekitar 12% dari berat total sampah kota. Upflow Anaerobic Fixed Bed Reactor (UAFB-R) yang digunakan dalam penelitian ini memakai media penunjang batu apung dengan resirkulasi efluen dan tanpa pengatur pH. Penelitian ini bertujuan untuk melihat kinerja UAFB-R dengan media penunjang batu apung dalam penyisihan organik dan pembentukan biogas terutama gas metan biowaste fasa cair. Hydraulic Retention Time UAFB-R ditentukan sebesar 6 hari dengan volume operasi sebesar 9 liter. Variasi beban organik influen dalam penelitian adalah 0,32 kg COD/m3.hari, 0,64 kg COD/m3.hari, 0,96 kg COD/m3.hari, 1,28 kg COD/m3.hari, 1,6 kg COD/m3.hari, dan 1,92 kg COD/m3.hari. Pada rentang beban organik influen 0,32 kg COD/m3.hari sampai 1,92 kg COD/m3.hari di kondisi tunak, semakin besar beban organik influen maka efisiensi penyisihan COD semakin kecil dan rasio TAV/Alkalinitas semakin besar. Namun, semakin kecil beban organik influen maka komposisi dan volume gas metan serta methane yield cenderung semakin besar. Saat variasi beban influen 0,96 kg COD/m3.hari dihasilkan volume gas metan terbesar sebanyak 1,77 liter, sedangkan saat variasi beban organik influen 0,64 kg COD/m3.hari dicapai komposisi gas metan dan methane yield terbesar sebesar 77,4% dan 0,249. Selain itu, semakin tinggi konsentrasi sulfat maka maka volume biogas yang terbentuk menjadi lebih kecil.
Analysis of Individual Aspects in Riverbank Slums on Sustainable Sanitation Development (Case Study: Bima City, NTB, Indonesia) Gusmiati, Gusmiati; Soewondo, Prayatni; Awfa, Dion; Halomoan, Nico; Sarli, Prasanti Widyasih; Setiyawan, Ahmad Soleh
Journal of Engineering and Technological Sciences Vol. 56 No. 2 (2024)
Publisher : Directorate for Research and Community Services, Institut Teknologi Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5614/j.eng.technol.sci.2024.56.2.10

Abstract

Currently, 24.5% of the population of Bima City lack access to sanitation. The issue is predominantly concentrated in densely populated urban slums along the riverbanks, influenced by the cultural and societal context of Indonesian society. From 2021 to 2022, a comprehensive mixed-method study was conducted in three urban slums, applying the Integrated Framework for Sanitation Services (IFSS) to explore individual aspects within a socio-cultural context. Combining quantitative and qualitative methods, the research involved a household questionnaire survey and in-depth interviews (IDI). The study revealed that individual aspects are shaped by perceptions of the convenience of open defecation and latrine use as well as experiences with shared latrines, driving the adoption of private latrines. Challenges such as financial constraints and limited construction capabilities in urban slum communities often hinder latrine construction, though cultural and traditional values (adat) in the Bima community in urban slums help to alleviate these obstacles. A recommendation is made to enhance the monitoring of sanitation adoption progress, focusing on the sanitation system’s functioning and adherence to the sanitation hierarchy. Despite awareness of the importance of safe disposal, its impact on sanitation behavior in Bima City’s urban slums has been constrained, underscoring the imperative for effective behavior change communication strategies.
STRATEGI PENANGANAN SANITASI DI PERMUKIMAN KUMUH DENGAN PENDEKATAN PARTISIPASI STAKEHOLDER (STUDI KASUS KOTA BIMA, NUSA TENGGARA BARAT) Hutagaol, David Christian; Soewondo, Prayatni; Awfa, Dion; Setiyawan, Ahmad Soleh; Sarli, Prasanti Widyasih; Halomoan, Nico
Jurnal Reka Lingkungan Vol 11, No 3 (2023)
Publisher : Institut Teknologi Nasional, Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26760/rekalingkungan.v11i3.246-257

Abstract

ABSTRAKKebutuhan akan sanitasi merupakan salah satu kebutuhan dasar manusia sebagai bagian dari upaya perlindungan kesehatan dan mendorong peningkatan ekonomi melalui peningkatan kapasitas pemerintah kabupaten/kota untuk mengimplementasikan program sanitasi di Indonesia. Kota Bima sebagai lokasi studu dengan permasalahan sanitasi perlu didukung oleh stakeholder. Penelitian ini dapat melengkapi dokumen yang sudah dibuat. Penelitian ini dilakukan dengan metode campuran atau mixed method yang dilakukan secara kualitatif pada metode Stakeholder Analysis (SA) dan metode kuantitatif pada metode Social Network Analysis (SNA). Stakeholder Analysis dilakukan dengan focus group discussion (FGD) sedangkan Social Network Analysis dilakukan berdasarkan kuesioner yang diisi oleh peserta FGD saat acara FGD berlangsung. Hasil rangkaian penelitian di Kota Bima: teridentifikasi 52 stakeholder yang memiliki kepentingan terkait sanitasi di permukiman kumuh; terpetakan ada 8 key actors, 7 important actors, 6 interested actors, dan 9 additional actors ; teridentifikasi 4 influential stakeholders yang juga adalah key actors. Secara umum kekohesifan (density) semua jenis kerja sama pada Kota Bima tidak cukup baik, yaitu 7,7%. Diperlukan peningkatan kerja sama dengan Perusahaan Swasta, Masyarakat, dan Akademisi untuk penanganan sanitasi di permukiman kumuh Kota Bima. Kata kunci: sanitasi, kawasan kumuh, stakeholder analysis, social network analysis, Kota Bima ABSTRACTThe need for sanitation is one of the basic human needs as part of efforts to protect health and encourage economic improvement to increase the capacity of district/city governments to implement sanitation programs in Indonesia. Bima City as a study location with sanitation problems needs to be supported by stakeholders. This research was carried out using mixed methods which were generally carried out qualitatively using the Stakeholder Analysis (SA) method and quantitatively using the Social Network Analysis (SNA) method. Stakeholder Analysis was carried out using a focus group discussion (FGD) while Social Network Analysis was carried out based on a questionnaire filled out by FGD participants during the FGD event. The results of research series in Bima City: identified 52 stakeholders who have an interest in sanitation in slum settlements; there are 8 key actors, 7 important actors, 6 interested actors, and 9 additional actors; there are 4 influential stakeholders who are also key actors. In general, the cohesiveness (density) of all types of cooperation in Bima City is not good enough, namely 7.7%. There is a need to increase cooperation with private companies, communities and academics to handle sanitation in Bima City slums. Keywords : sanitation, slum area, stakeholder analysis, social network analysis, Bima City
Co-Authors Agus Jatnika Effendi Andik Yulianto Arie Fandya Astried Sunaryani, Astried Damir Brdjanovic Dion Awfa Fauzi, Mhd. Gusmiati, Gusmiati Halomoan, Nico Herto Dwi Arisyady, Herto Hutagaol, David Christian Immaddudin Wira Rohmat, Faizal Karmilia, Alya Magfhira, Azzahra Mahmud Mahmud Marisa Handajani Marisa Handayani Munazah, Ashila Rieska Munuqy, Wulanda Anggi Noor, Rininta Triananda Novanta, Muhammad Iqbal Prayogo, Wisnu Prismita Nursetyowati, Prismita Putri, Dyah Wulandari Rizka, Miftahir Rohmat, Faizal Santoso, Arianto Budi Sarli, Prasanti Widyasih Setiadi, Tjandra Setiyawan, Ahmad Soleh Subroto, Michael Tedjakusuma, Teddy Thye Yoke Pean Tirtana Putri, Aulia Va, Vandith Widya Ramdhani Wijayasari, Winda