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All Journal Jurnal Ilmiah Universitas Batanghari Jambi Jurnal Civronlit Unbari Elektriese: Jurnal Sains dan Teknologi Elektro
Raudhati, Emelda
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Pemantauan Kualitas Udara Ambien pada Pekerjaan Preservasi Jalan Raudhati, Emelda
Jurnal Civronlit Unbari Vol 9, No 2 (2024): Oktober
Publisher : Universitas Batanghari

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33087/civronlit.v9i2.139

Abstract

Heavy traffic, especially from large vehicles passing through the road, can potentially cause congestion and increase air pollution. Ambient air quality can significantly decrease due to vehicle emissions, impacting public health and environmental quality. This study focuses on monitoring ambient air quality during road preservation work conducted along the route of Jalan Bts. Prov. Sumsel – Tempino – Pal. Sepuluh – Lingkar Timur – Sp. Sijenjang – Pel. Talang Duku in Muaro Jambi Regency.objective of this research is to analyze the ambient air quality at th road preservation work sites. The research method applied is a survey method with the selection of three locations along the road segment: 1. AMP Tempino, located at coordinates LS 01°47’01.23’’ BT 103°28’27.56’’; 2. STA 11+050 located at coordinates LS 01°45’51’’ BT 103°33’23’’; and 3. Ruas Simpang Paal. X, located at coordinates LS 01°40’12’’ BT 103°36’1’’. This research is descriptive in nature, focusing on the observation and analysis of ambient air quality according to the SNI 7119-3:2017 standard for each test parameter. The results show that at the AMP Tempino site, Particulate dust is 46,50 µg/Nm³,Sulfur Dioxide is 99,88 µg/Nm³, and Carbon Monoxide is 6563,05 µg/Nm³. The highest Nitrgen Dioxide level of 47,88 µg/Nm³ was recorded at STA 11+050, and the highest level of Photochemical Oxidants as Ozone at 41,76 µg/Nm³ was found at Ruas Simpang Paal. X. All test parameters are below the standard quality limits. Overall, Carbon Monoxide has the highest concentration across all locations, while Nitrogen Dioxide often shows the lowest values
Analisis Daya Dukung Pondasi Tiang Menggunakan Metode Pile Driving Analyzer (PDA) (Studi Kasus: Jembatan Rengas, Kabupaten Batang Hari) Raudhati, Emelda
Jurnal Ilmiah Universitas Batanghari Jambi Vol 25, No 1 (2025): Februari
Publisher : Universitas Batanghari Jambi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33087/jiubj.v25i1.6049

Abstract

Foundation as an important element to bear loads and transfer them to the ground. Foundation design considers various aspects, especially soil conditions, to ensure the bearing capacity and stability of the structure. The Pile Driving Analyzer (PDA) method is a testing technique used to assess the bearing capacity of pile foundations through dynamic load analysis. The analysis is performed using the "Case Method" for axial bearing capacity calculation, which is then analyzed using CAPWAP software, in accordance with ASTM D4945 (Standard Test Method for High Strain Dynamic Testing of Deep Foundations). The research was conducted at the construction site of the Rengas Bridge in Batanghari District, Jambi. The results show that the actual bearing capacity (Ru) of piles A1-P8 and A1-P9 are 137 tons and 270 tons, respectively, while the skin friction (Rs) values are 37 tons for A1-P8 and 103 tons for A1-P9. Additionally, the tip resistance (Rt) for piles A1-P8 and A1-P9 are 100 tons and 167 tons, respectively. The results indicate that pile A1-P9 has a higher bearing capacity compared to pile A1-P8, both in terms of skin friction and tip resistance, suggesting a significant difference in load-bearing capacity between the two piles.
Perbandingan Daya Dukung Tiang Pancang berdasarkan Uji Kalendering dan Pile Driving Analyzer (PDA) pada Pekerjaan Penggantian Jembatan Sei. Rengas Jambi Raudhati, Emelda
Jurnal Ilmiah Universitas Batanghari Jambi Vol 25, No 2 (2025): Juli
Publisher : Universitas Batanghari Jambi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33087/jiubj.v25i2.6285

Abstract

This study aims to compare the bearing capacity based on the calendaring test and Pile Driving Analyzer (PDA) on the replacement work of the Sei. Rengas Jambi Bridge. The calendaring test is calculated using the Hiley formula while the PDA test uses the case method and CAPWAP analysis according to ASTM D4945. The results of the study show that there are significant differences between the two methods, namely the average calendaring bearing capacity of 279.33 tons with a standard deviation of 109.43 tons, while the average PDA bearing capacity is 203.5 tons with a standard deviation of 66.5 tons. The range of calendaring values provides higher bearing capacity results.
Pengaruh Variasi Dosis, Waktu Kontak dan Kecepatan Pengadukan terhadap Adsorpsi Merkuri dengan Menggunakan Adsorben dari Lumpur IPA PDAM Kasman, Monik; Hadrah, Hadrah; Riyanti, Anggrika; Raudhati, Emelda; Handayani, Lucya
Elektriese: Jurnal Sains dan Teknologi Elektro Vol. 13 No. 02 (2023): Artikel Riset Oktober 2023
Publisher : Yayasan Cita Cendekiawan Al Khwarizmi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47709/elektriese.v13i02.3276

Abstract

Penelitian ini bertujuan untuk mengetahui bahwa adsorben lumpur PDAM IPA teraktivasi lebih banyak menyerap merkuri dibandingkan tanpa aktivasi. Pengujian dilakukan dengan 5 variasi dosis lumpur aktif yaitu 1 gram, 2 gram, 3 gram, 4 gram dan 5 gram dan setelah diaktivasi hasilnya menunjukkan bahwa semakin tinggi dosis adsorben maka semakin besar pula potensi penurunan konsentrasi merkuri dalam air. Limbah dan meningkatkan konsentrasi merkuri dalam limbah efisiensi penghapusan 95%. Bahan yang digunakan dalam penelitian ini adalah limbah pengolahan air minum di PDAM dari kolam pengolahan lumpur PDAM Tanjung Sari Kota Jambi, bahan kimia HgSO4 dalam bentuk padat, Aquades, Larutan NaOH dan Larutan HNO3 pekat. Waktu yang digunakan adalah variasi 15, 30, 45, 60 dan 75 menit, dimana semakin lama waktu kontak maka kemampuan adsorben dalam menyerap adsorbat semakin besar sehingga meningkatkan efisiensi merkuri sebesar 91%. Semakin tinggi kecepatan pengadukan, semakin baik efisiensi penghilangan merkuri. Hasil penelitian menunjukkan efisiensi penyisihan sebesar 95%, dan efektivitas lumpur IPA PDAM sebagai adsorben sangat baik dengan aktivasi (TAVB) terlihat pada efisiensi penyisihan hingga 95%, karena aktivasi adsorben meningkat. daerah pori daerah adsorpsi. Model isoterm yang cocok untuk penelitian adsorpsi lumpur IPA PDAM adalah Isoterm Langmuir. Rata-rata persentase penurunan pengaruh ketiga dosis, waktu kontak, dan kecepatan adsorben terhadap sisa lumpur aktif mempunyai kemampuan menyerap merkuri sebesar 93%, sehingga hasil tersebut dapat menunjukkan bahwa lumpur limbah PDAM IPA dapat dimanfaatkan sebagai bahan baku. Adsorben dalam pengolahan limbah logam berat seperti merkuri. Hal ini dimungkinkan karena lumpur PDAM IPA dengan aktivasi telah menyerap merkuri sehingga permukaannya tertutup dan pori-porinya mengecil.
Co-Authors Anggrika Riyanti, Anggrika Hadrah Hadrah, Hadrah Handayani, Lucya Monik Kasman