Garuda - Garba Rujukan Digital

Analysis of Potential RDF Resources from MSW Landfills in Major Cities of Indonesia Andre Susilo; Djoko M. Hartono; Muhammad Angga Kusuma; Dwica Wulandari
Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan Vol 19, No 2 (2022): July 2022
Publisher : Universitas Diponegoro

Many Indonesian landfills include the waste that has the potential to be used as an alternative fuel in the cement industry. It is converted into RDF to enable cement manufacturers to use waste. The research was conducted to know the Municipal Solid Waste (MSW) potential of 3 landfills (Bantargebang, Sumur Batu, and Cipayung) as a renewable fuel. Before processing, MSW is characterised because there are quality standards that the waste must meet before being used as fuel. That is a quantitative study combining a literature review and laboratory test methods. The parameters that have been measured from the three sample sites were water content, ash content, volatile level, and calorific value. The results showed that the total energy value acquired from Refuse Derived Fuel (RDF) resources of Bantargebang, Sumur Batu, and Cipayung landfills was 2742.14, 2741.24, and 2671.32 kcal/kg, respectively. In addition, based on the water content at the three sample locations, only rubber samples qualified for RDF processing. In contrast, rubber was the sole component that did not match the processing conditions to become RDF based on ash content. Furthermore, the volatile level of the three research sites meets the RDF standard.

PENGARUH DEBIT TERHADAP KINERJA INSTALASI PENGOLAHAN AIR LIMBAH DOMESTIK : STUDI KASUS GEDUNG A DI JAKARTA Muhammad Lian Kautsar; Djoko M. Hartono; Astryd Viandila Dahlan
JURNAL PENELITIAN DAN KARYA ILMIAH LEMBAGA PENELITIAN UNIVERSITAS TRISAKTI Vol. 6 No. 2 (2021)
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat Universitas Trisakti

Telah dilakukan evaluasi kinerja IPAL Gedung A dengan cara melakukan studi pengaruh debit air limbah yang masuk ke IPAL terhadap efisiensi Penyisihan Parameter BOD, COD, TSS dan NH3-N. Penelitian dilakukan sejak Januari 2019 hingga Desember 2020. Sampel air limbah diambil di inlet dan outlet. Dari hasil penelitian ini dapat diambil kesimpulan bahwa IPAL Gedung A mempunyai kinerja yang bagus. Pada awal tahun 2019, sejak Februari hingga Agustus 2019, dengan debit rata-rata 405 m3/hari. Kinerja IPAL sangat bagus dengan Efisiensi penyisihan BOD,COD, TSS dan NH3-N lebih besar dari 90%. Pada bulan Agustus 2019 dan September 2019 Efisiensi penyisihan semua parameter mengalami penurunan, dan parameter NH3-N turun hingga 47% pada bulan Agustus dan dan 55% pada September 2019. Efisiensi Penyisihan setiap parameter meningkat kembali mencapai lebih 90% pada bulan Oktober 2019 sampai Desember 2019. Pada tahun 2020, dengan debit rata-rata 242, efisiensi penyisihan semua parameter mencapai lebih dari 95%.

MAPPING THE SPATIAL VARIATION OF RIVERS WATER QUALITY USING MULTIVARIATE ANALYSIS. A CASE STUDY OF GREATER JAKARTA, INDONESIA Ramadhani Yanidar; Djoko Mulyo Hartono; Setyo Sarwanto Moersidik; Yves Andres
INDONESIAN JOURNAL OF URBAN AND ENVIRONMENTAL TECHNOLOGY VOLUME 6, NUMBER 1, APRIL 2023
Publisher : Universitas Trisakti

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25105/urbanenvirotech.v6i1.16198

Urban activities and runoff deteriorated the river water. Aim: This study aims to determine the primary contamination and mapping river's water quality variation in Greater Jakarta. Methodology and Results: Multivariate analysis was employed by Factor Analysis and Cluster Analysis (FA and CA) using the 12 parameters of the water quality dataset from 76 sampling stations in 19 rivers in the Greater Jakarta Region, Indonesia, between 2014 and 2015. The FA result showed that almost 66.6% of the total variance in water quality data was associated with four significant variators of which 36.12% identified the main parameters BOD, COD, TP, ammonia, nitrate, and detergent. The cluster analysis grouped the sampling locations into 3 (three) clusters to indicate the spatial classifications of river water. Cluster 1 indicates pollutants from the residential area, Cluster 2 from residential and commercial areas, while Cluster 3 is majorly pollutants from industrial areas. Conclusion, significance, and impact study: The results showed the conductivity and TDS concentrations in cluster 3 are higher than the others since most of the sampling points are located near an industrial area or downstream close to the estuary. The mapping gave a better understanding of the river water quality characteristic spatially and could assist local governments in prioritizing river pollution management.

Removal of Methylene Blue From Aqueous Solutions by Adsorption on Alum Sludge: Effect of Operating Parameters Sandyanto Adityosulindro; Annisa Firdaus; Djoko Mulyo Hartono
Jurnal Serambi Engineering Vol. 9 No. 4 (2024): Oktober 2024
Publisher : Faculty of Engineering, Universitas Serambi Mekkah

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

In developing countries, high capital, operational costs, limited space are the main challenges to implement appropriate sludge treatment system. Thus, research about reutilization sludge are urgently needed. In this study, alum sludge from sedimentation basin of water treatment plant was dried and used as adsorbent for removal methylene blue from aqueous solutions. Alum sludge was charachterized by SEM-EDX, XRD, FTIR, particle size analyzer, surface area analyzer and pHPZC. The effect of various parameters such as: contact time (5-360 min), initial MB concentrarion (5-100 mg/L), adsorbent dosage (0.25-3.0 g/L), pH (4-10), temperature (20-60 0C) and water matrix (deionized, sedimentation basin effluent, river water, wastewater) were assessed. The result showed that removal efficiency has directly proportional with contact time, adsorbent dosage and pH, while an inverse relationship with initial MB concentration was observed. Removal efficiency up to 98% was achieved at MB 50 mg/L, AS 3 g/L, temperature 300, and pH 6.8. Isotherm and kinetic models fitted Langmuir model with capacity of 37.45 mg/g and pseudo-second-order model kinetic. Applicability test in various water matrix indicated that the utilization of low-cost adsorbent from non-modified dried alum sludge has potential for removal of methylene blue from low to moderate contaminated aqueous solution.

PENGARUH DEBIT TERHADAP KINERJA INSTALASI PENGOLAHAN AIR LIMBAH DOMESTIK : STUDI KASUS GEDUNG A DI JAKARTA Kautsar, Muhammad Lian; Hartono, Djoko M.; Dahlan, Astryd Viandila
JURNAL PENELITIAN DAN KARYA ILMIAH LEMBAGA PENELITIAN UNIVERSITAS TRISAKTI Volume 6, Nomor 2, Juli 2021
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat Universitas Trisakti

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25105/pdk.v6i2.9528

Telah dilakukan evaluasi kinerja IPAL Gedung A dengan cara melakukan studi pengaruh debit air limbah yang masuk ke IPAL terhadap efisiensi Penyisihan Parameter BOD, COD, TSS dan NH3-N. Penelitian dilakukan sejak Januari 2019 hingga Desember 2020. Sampel air limbah diambil di inlet dan outlet. Dari hasil penelitian ini dapat diambil kesimpulan bahwa IPAL Gedung A mempunyai kinerja yang bagus. Pada awal tahun 2019, sejak Februari hingga Agustus 2019, dengan debit rata-rata 405 m3/hari. Kinerja IPAL sangat bagus dengan Efisiensi penyisihan BOD,COD, TSS dan NH3-N lebih besar dari 90%. Pada bulan Agustus 2019 dan September 2019 Efisiensi penyisihan semua parameter mengalami penurunan, dan parameter NH3-N turun hingga 47% pada bulan Agustus dan dan 55% pada September 2019. Efisiensi Penyisihan setiap parameter meningkat kembali mencapai lebih 90% pada bulan Oktober 2019 sampai Desember 2019. Pada tahun 2020, dengan debit rata-rata 242, efisiensi penyisihan semua parameter mencapai lebih dari 95%.

INTEGRATION OF ADSORPTION PROCESS AND MEMBRANE ELECTROCHEMICAL REACTOR TO REMOVE TRIHALOMETHANES IN DRINKING WATER TREATMENT Tazkiaturrizki , Tazkiaturrizki; Hartono, Djoko M; Adityosulindro, Sandyanto; Wahyuningsih, Ni Putu Sri
INDONESIAN JOURNAL OF URBAN AND ENVIRONMENTAL TECHNOLOGY VOLUME 8, NUMBER 1, APRIL 2025
Publisher : Universitas Trisakti

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25105/urbanenvirotech.v8i1.22632

Trihalomethanes (THMs) are disinfection by-products formed from the reaction of disinfectants with natural organic matter (NOM). Aims: This study aimed to analyze the presence of NOM as precursors and THMs removal using a integration of granular activated carbon (GAC) and electrochemical membrane reactor (MER) in drinking water treatment (DWT). Methodology and results: Analysis of GAC performance in reducing NOM through variations in carbon dosage and reaction time. MER is an advanced treatment to reduce THMs in drinking water treatment with parameters of current density and reaction time. The DWT raw water contained NOM: DOC concentration of 5.18 ± 1.99 mg/L and SUVA of 2.04 ± 1.02 L/mg m. Conventional DWT remove 4-60% of NOM. The addition of GAC increases NOM removal up to 68%. MER can remove THM with 40 - 80% for chloroform and bromodichloromethane, while for chlorodibromomethane and bromoform, the removal is 10-50%. Conclusion, significance and impact study: The integration of GAC-MER increases NOM removal up to 90%, and the integration of MER-GAC reduce THMs up to 40-62%. The optimum condition of MER for NOM and THMs removal is at a current density of 20 mA cm-2 and a reaction time of 1 hour. This study is expected to be useful for DWT to control the formation of DBPs that are harmful to human health. The application of MER can reduce DBP as well as other pollutants because MER treatment is a combined treatment of membrane filters and electro-oxidation, and the addition of GAC increases the pollutant removal.

MAPPING THE SPATIAL VARIATION OF RIVERS WATER QUALITY USING MULTIVARIATE ANALYSIS. A CASE STUDY OF GREATER JAKARTA, INDONESIA Yanidar, Ramadhani; Hartono, Djoko Mulyo; Moersidik, Setyo Sarwanto; Andres, Yves
INDONESIAN JOURNAL OF URBAN AND ENVIRONMENTAL TECHNOLOGY VOLUME 6, NUMBER 1, APRIL 2023
Publisher : Universitas Trisakti

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25105/urbanenvirotech.v6i1.16198

Urban activities and runoff deteriorated the river water. Aim: This study aims to determine the primary contamination and mapping river's water quality variation in Greater Jakarta. Methodology and Results: Multivariate analysis was employed by Factor Analysis and Cluster Analysis (FA and CA) using the 12 parameters of the water quality dataset from 76 sampling stations in 19 rivers in the Greater Jakarta Region, Indonesia, between 2014 and 2015. The FA result showed that almost 66.6% of the total variance in water quality data was associated with four significant variators of which 36.12% identified the main parameters BOD, COD, TP, ammonia, nitrate, and detergent. The cluster analysis grouped the sampling locations into 3 (three) clusters to indicate the spatial classifications of river water. Cluster 1 indicates pollutants from the residential area, Cluster 2 from residential and commercial areas, while Cluster 3 is majorly pollutants from industrial areas. Conclusion, significance, and impact study: The results showed the conductivity and TDS concentrations in cluster 3 are higher than the others since most of the sampling points are located near an industrial area or downstream close to the estuary. The mapping gave a better understanding of the river water quality characteristic spatially and could assist local governments in prioritizing river pollution management.

Title

Found 17 Documents
Search

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Title Search

Found 17 Documents Search

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Title

Found 17 Documents
Search