Garuda - Garba Rujukan Digital

Potential of Energy Municipal Solid Waste (MSW) to Become Refuse Derived Fuel (RDF) in Bali Province, Indonesia Suryawan, I Wayan Koko; Wijaya, I Made Wahyu; Sari, Novi Kartika; Septiariva, Iva Yenis; Zahra, Nurulbaiti Listyendah
Jurnal Bahan Alam Terbarukan Vol 10, No 1 (2021): June 2021 [Nationally Accredited - SINTA 2]
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jbat.v10i1.29804

The generation of municipal solid waste (MSW) in Bali has various environmental impacts. One of the updates on sustainable waste processing is the RDF treatment plant processing. Before carrying out the processing, MSW characterization is needed because each region has a diverse composition. The processing of MSW into RDF provides benefits for achieving MSW reduction targets, renewable energy use, and the reduction of greenhouse gas (GHG) emissions. For this reason, this study was conducted to determine the potential of MSW in Bali as an alternative to renewable fuel and its potential to reduce GHG. MSW's potential calorific value as a raw material for RDF in Bali can reach 9.58 - 17.71 MJ/kg. The implementation of processing waste into RDF in pellets has shown a calorific value of Â± 3904 - 4945 kkcal/kg. Implementing MSW processing into RDF in Bali can reduce GHG by 178 - 330 times compared to open dumping.

Potential of Energy Municipal Solid Waste (MSW) to Become Refuse Derived Fuel (RDF) in Bali Province, Indonesia Suryawan, I Wayan Koko; Wijaya, I Made Wahyu; Sari, Novi Kartika; Septiariva, Iva Yenis; Zahra, Nurulbaiti Listyendah
Jurnal Bahan Alam Terbarukan Vol 10, No 1 (2021): June 2021 [Nationally Accredited - Sinta 2]
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jbat.v10i1.29804

The generation of municipal solid waste (MSW) in Bali has various environmental impacts. One of the updates on sustainable waste processing is the RDF treatment plant processing. Before carrying out the processing, MSW characterization is needed because each region has a diverse composition. The processing of MSW into RDF provides benefits for achieving MSW reduction targets, renewable energy use, and the reduction of greenhouse gas (GHG) emissions. For this reason, this study was conducted to determine the potential of MSW in Bali as an alternative to renewable fuel and its potential to reduce GHG. MSW's potential calorific value as a raw material for RDF in Bali can reach 9.58 - 17.71 MJ/kg. The implementation of processing waste into RDF in pellets has shown a calorific value of ± 3904 - 4945 kkcal/kg. Implementing MSW processing into RDF in Bali can reduce GHG by 178 - 330 times compared to open dumping.

Penentuan Korelasi Curah Hujan Dan Ketinggian Lapisan Inversi Dan Hubungannya Dengan Kualitas Udara Ambien Kota Surabaya Novi Kartika Sari
Jurnal Teknik ITS Vol 4, No 1 (2015)
Publisher : Direktorat Riset dan Pengabdian Masyarakat (DRPM), ITS

— Kota Surabaya memiliki pencemaran tinggi yang dipengaruhi oleh meteorologi dan lapisan inversi. Dispersi polutan terbatas sampai ketinggian lapisan inversi atau mixing height. Penelitian ini menentukan perubahan curah hujan terhadap ketinggian lapisan inversi, perubahan curah hujan terhadap ketinggian lapisan inversi dan ketinggian lapisan inversi terhadap udara ambien kota Surabaya. Data yang digunakan adalah profil temperatur melalui penerbangan Radiosonde BMKG Juanda, curah hujan harian wilayah dari BMKG Perak 1 dan Juanda pada musim hujan serta rata-rata harian kualitas udara ambien di Stasiun 1,4, dan 5 kota Surabaya selama tahun 2009-2014. Penentuan korelasi menggunakan korelasi Pearson. Mixing height lebih rendah pada musim hujan akibat ketinggian awan yang rendah dan pengaruh jenis inversi. Mixing height memiliki korelasi positif lemah dengan curah hujan (0,120). Sebaliknya mixing height berkorelasi negatif lemah terhadap kualitas udara ambien kecuali SO2(-0,088≤r≤-0,581). Curah hujan memiliki korelasi lemah terhadap semua parameter ambien, kecuali SO2 memiliki korelasi lebih kuat (-0,122≤r≤-0,308).

DETERMINATION OF WATER QUALITY INDEX (WQI) CENTRAL JAVA PROVINCE WATER BODY BASED ON TOTAL COLIFORM Iva Yenis Septiariva; Hashfi Hawali Abdul Matin; Novi Kartika Sari; Ariyanti Sarwono; I Wayan Koko Suryawan
Journal of Green Science and Technology Vol 5, No 2 (2021): VOL 5, NO 2 (2021): JOURNAL OF SCIENCE AND TECHNOLOGY VOL. 5 NO. 2 SEPTEMBER 202
Publisher : FAKULTAS TEKNNIK UNIVERSITAS SWADAYA GUNUNG JATI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33603/jgst.v5i2.5752

In recent years, the Central Java Province municipal river's water quality in the area is classified as heavily polluted. Therefore, research on water quality and its pollution level needs to be carried out in the Surakarta municipal river, especially in the Central Java Province. This study aimed to determine water quality and the pollution conditions in the Surakarta municipal river and analyze the conditions of the pollution load in the river at a predetermined observation point. This research was conducted using a survey method field with secondary data. The analysis was carried out using the method water quality index (WQI). The results showed The WQI change from heavily polluted to lightly polluted was measured at several observation locations from 2016 to 2018. The changes in the measured pollution index from 2016 to 2018 by coliform.

MINE WATER MANAGEMENT IN THE COAL MINING PROCESS Pranata, Andrian; Sari, Novi Kartika; Tahir, Tarmizi; Fahmi, Achmad Gus; Habibie, Hanifullah; Choiron, Dodik; Triwibowo, Didik
Sustainable Environmental and Optimizing Industry Journal Vol 6, No 1 (2024)
Publisher : Universitas Sahid

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36441/seoi.v6i1.2285

The open mining method has the potential for the formation of mine water. Mine water is characterized by a high degree of acidity which affects the life of organisms and the quality of the environment indirectly or directly, therefore it needs to be managed. This study examines mine water management at PT Adaro Indonesia. The methods used in the research were field studies and laboratory experiments. Grab sampling is used to take water samples, with the test parameters being pH, Fe and Mn metals and total suspended solid (TSS). Data analysis was carried out quantitatively and descriptively. The mine water management used is in the form of a settling pond. The settling pond consists of several compartments, namely sedimentation pond, safety pond, treatment pond and mud pond. The quality of mine water management through a series of settling ponds obtained changes in pH to 6.07, Fe metal 0.0465 mg/l, Mn metal 1.3513, and TSS 35 mg/l with an efficiency of more than 50%. The quality of mine water produced after going through management has met the established regulations, namely Decree of the Minister of Environment and Forestry No. 1347/MENLHK/SETJEN/PLA.4/12/2022.

The Relationship of Microplastic Abundance, Flow Rate Discharge and Drainage Profile in Bandar Lampung City, Lampung Province, Indonesia Alam, ‪Firdha Cahya; Fajar, Mutiara; Patricia, Ester; Novelila, Alisha; Mawaddah, Nurul; Sari, Novi Kartika
Indonesian Journal of Geography Vol 56, No 2 (2024): Indonesian Journal of Geography
Publisher : Faculty of Geography, Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/ijg.93040

The research on microplastics in urban drainage is becoming a concern. In the drainage of Bandar Lampung city, four different anthropogenic activities were investigated: road runoff, industrial activity, public place, and housing area. This study investigated the abundance, characteristics and distribution of microplastics (MPs) through drainage systems in dry weather. A total of sixteen drainage water samples were collected using grab sampling with a horizontal water sampler. Under microscope observation combined with a needle test, the average abundance of MPs was found 3.97±3.4 particles/L, with fibers as the dominant type of MPs. The order of MPs' abundance was industrial area > public area > transportation area > housing area. However, this number of MPs tends to be lower compared to other reported studies. The size of MPs mostly ranged from 500 - 1500 µm (36%). The color of MPs was amply diverse, with blue being in the dominant proportion (43%). Other studies also reported similar findings regarding the type and size range. Through Raman spectroscopy, the identification of polymer types indicated the presence of polyethylene terephthalate. From the correlation analysis, it was found that there was a positive correlation between the abundance of MPs and flow rate discharge, though with a low relationship (r=0.46). This result can be influenced by several factors such as the effects of multiple land use types and pollution sources. The significance of this research lies in its contribution to understanding the extent of microplastic pollution and its potential environmental impact on the Lampung water body.

Internalization of Social Values in the Village Clean Tradition in Javanese Communities in the Lama Village of Sei Lepan Sub-District, Langkat District Novi Kartika Sari; Eka Darliana; Deni Hartanto
JURNAL PENDIDIKAN IPS Vol 14 No 2 (2024): JURNAL PENDIDIKAN IPS
Publisher : STKIP Taman Siswa Bima

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37630/jpi.v14i2.2204

Internalization refers to the process of instilling certain values, which takes place in three stages: transformation, transaction, and trans-internalization. In the case of the clean village tradition in the Old Village, this process occurs during the month of Syuro/Muharram. The aim of this research is to examine the transformation of social values within the clean village tradition in the Old Village Javanese community, the transaction of these values, and the internalization of these values in the community. The research uses a descriptive qualitative approach, with purposive sampling for informants. Data collection methods include interviews, observations, and documentation, while data analysis follows the approach of Miles, Huberman, and Saldana. The results of the research reveal that the transformation of social values within the community of Lama Village, Sei Lepan District, generates positive values, particularly from a religious standpoint, communicated through the clean village tradition. These teachings encourage individuals to live cautiously, avoid violating Allah's religious laws, and maintain a strong sense of faith. The transaction of social values during the clean village ritual enhances the community's faith, tolerance, understanding of almsgiving, concern for the environment, respect for elders, and ability to cleanse negative traits from the heart. The trans-internalization process has become ingrained in the daily lives of the Lama Village community, with social and religious values actively practiced. Deliberation to achieve mutual consensus and the practice of helping and cooperating in times of need remain highly valued in Lama Village, Sei Lepan District.

Atmospheric Microplastic Particulate Matter in an Urban Roadside: Case of Bandar Lampung City, Indonesia Sari, Novi Kartika; Mawaddah, Nurul; Shiddiq, Muhammad Daffa; Alam, Firdha Cahya; Fajar, Mutiara
Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan Vol 22, No 2 (2025): July 2025
Publisher : Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/presipitasi.v22i2.561-576

Atmospheric microplastics (AMPs) have become a growing concern in recent years, although research remains limited. This study investigated AMPs in Bandar Lampung City, Indonesia, by roadside particulate sampling using a High-Volume Air Sampler (HVAS) over eight hours in industrial zones, residential areas, busy roads, and city centers. AMPs were identified through visual analysis for their abundance and physical characteristics. Certain samples were further examined with Raman spectroscopy. Total Suspended Particulate (TSP) levels ranged from 16.96 to 427.8 μg/m³, with the highest concentrations in industrial areas. Microplastic concentrations ranged from 0.0021 to 0.0199 particles/m³, with fibrous microplastics most common. Blue and grey (faded black) microplastics were the most prevalent, with particles between 500-1000 µm making up 42% of the total. Raman analysis detected Polyethylene terephthalate (PET). In S4 (city center), the highest vehicle count was 3,388±270 vehicles/day, while S2 (residential area) recorded the lowest at 1,166±99 vehicles/day. No significant relationship was found between TSP levels, microplastic concentrations, or vehicle numbers. However, Northern area may be potential sources of AMPs along traffic flow.

DETERMINATION OF WATER QUALITY INDEX (WQI) CENTRAL JAVA PROVINCE WATER BODY BASED ON TOTAL COLIFORM Iva Yenis Septiariva; Hashfi Hawali Abdul Matin; Novi Kartika Sari; Ariyanti Sarwono; I Wayan Koko Suryawan
Journal of Green Science and Technology Vol 5 No 2 (2021): VOL 5, NO 2 (2021): JOURNAL OF SCIENCE AND TECHNOLOGY VOL. 5 NO. 2 SEPTEMBER 2021
Publisher : Faculty of Engineering, Universitas Swadaya Gunung Jati

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33603/jgst.v5i2.5752

In recent years, the Central Java Province municipal river's water quality in the area is classified as heavily polluted. Therefore, research on water quality and its pollution level needs to be carried out in the Surakarta municipal river, especially in the Central Java Province. This study aimed to determine water quality and the pollution conditions in the Surakarta municipal river and analyze the conditions of the pollution load in the river at a predetermined observation point. This research was conducted using a survey method field with secondary data. The analysis was carried out using the method water quality index (WQI). The results showed The WQI change from heavily polluted to lightly polluted was measured at several observation locations from 2016 to 2018. The changes in the measured pollution index from 2016 to 2018 by coliform.

Initial Assessment on Air Quality from Vehicles Crossing Toll Gate in Highway (Case: Kota Baru Toll Gate, South Lampung) Sari, Novi Kartika; Ramadani, Fadhil; Prasetio, Bambang; Alifa, Nabila Putri Yandri
Jurnal Sumberdaya Alam dan Lingkungan Vol 12, No 1 (2025)
Publisher : Brawijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jsal.2025.012.01.1

ABSTRACT The Trans-Sumatera Toll Road promotes regional connectivity and economic development, but vehicle activity at toll gates may impact air quality due to emissions and congestion. This study investigates the effect of traffic on air quality at the Kota Baru toll gate, South Lampung. Nitrogen dioxide (NO₂) and carbon monoxide (CO) were measured over four days during the rainy season, following SNI 19-7119.9:2005. NO₂ was analyzed using the Griess-Saltzman method, while CO was detected with a calibrated portable instrument. Meteorological data (wind speed/direction, temperature, humidity) and vehicle volume were also collected to assess their influence on pollutant dispersion. Statistical analyses, including Pearson correlation and Multiple Linear Regression (MLR), were conducted using RStudio. The average NO₂ and CO concentrations were 81.3 ± 26.6 µg/Nm³ and 89.8 ± 30.1 µg/Nm³, respectively. Light-duty vehicles made up 86.5% of total traffic and showed a strong positive correlation with both pollutants (r > 0.6). Winds from the southwest and south (0–3.8 m/s) may carry pollutants northward. Temperature and wind speed were negatively correlated with pollution, while humidity showed a positive correlation (r > 0.5; p < 0.05). Short-term traffic control and long-term air quality monitoring are recommended to support emission reduction and public health. Keywords: air quality assessment, meteorological factors, toll gate, South Lampung

Title

Found 11 Documents
Search

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Title Search

Found 11 Documents Search

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Title

Found 11 Documents
Search