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All Journal Jurnal Ilmu Lingkungan Journal of Degraded and Mining Lands Management Media Konstruksi : Jurnal Ilmiah Teknik Sipil SemanTIK : Teknik Informasi Jukung (Jurnal Teknik Lingkungan) Journal Publicuho Al-Ard: Jurnal Teknik Lingkungan Stabilita : Jurnal Ilmiah Teknik Sipil Fakultas Teknik Universitas Halu Oleo Kendari Maslahah: Jurnal Pengabdian Masyarakat Environmental Science and Engineering Conference Proceeding Jurnal Pengabdian Masyarakat Ilmu Terapan (JPMIT) Jurnal Teknologi Kimia Unimal Media Konstruksi : Jurnal Ilmiah Teknik Sipil Smart Humanity: Jurnal Pengabdian Masyarakat
Rachman, Ranno Marlany
Universitas Halu Oleo
Religion Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Engineering Environmental Science Health Professions Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mathematics Public Health Social Sciences Transportation Other

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Utilization of Cockle Shell (Anadara Granosa) as Partial Replacement of Fine Aggregates in Concrete Rachman, Ranno Marlany; Soeparyanto, Try Sugiyarto; Ngii, Edward
Al-Ard: Jurnal Teknik Lingkungan Vol. 6 No. 2 (2021): March
Publisher : Department of Environmental engineering, Faculty of Science and Technology, Islamic State University Sunan Ampel Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29080/alard.v6i2.1193

Abstract

This research aimed to utilize Anadara Granosa (Blood clam shell) clamshell waste as a new innovation in concrete technology and to investigate the effect of Anadara Granosa clamshell powder utilization as an aggregate substitution on the concrete compressive strength. The sample size was made of cylinders with a size of 10 cm x 20 cm with variations of clamshell powder 10%, 20% and 30% from the fine aggregate volume then soaked for 28 days as per the method of the Indonesian National Standard. The evaluation results exhibited that the slump value exceeded the slump value of normal concrete with a slump value of 0% = 160 mm, 10% = 165 mm, 20% = 180 mm and 30% = 180 mm. Additionally, it was found that the concrete compressive strength obtained post 28 days were 20.78 Mpa, 21.95 Mpa, 21.17 Mpa and 24.28 Mpa for normal concrete (0%), substitution concrete (10%), substitution concrete (20%) and substitution concrete (30%), respectively. Leading on from these results, it was concluded that the increment of Anadara Granosa clamshell powder substitution led to the increase of concrete compressive strength test.
Evaluation of Wastewater Treatment Installations at Kendari City Hospital Rachman, Ranno Marlany; Pidun, Pidun; Talanipa, Romy
Jurnal Ilmu Lingkungan Vol 23, No 5 (2025): September 2025
Publisher : School of Postgraduate Studies, Diponegoro Univer

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jil.23.5.1441-1447

Abstract

Hospitals are public facilities that generate large amounts of waste from various activities, including liquid waste containing hazardous substances that must be treated before discharge into the environment. This study aims to evaluate the performance of the Kendari City Regional Hospital Wastewater Treatment Plant (WWTP) and to determine the quality of wastewater after treatment, in accordance with the Minister of Environment Decree Number 5 of 2014. This study uses a quantitative descriptive method with an observation approach, laboratory testing, and interviews. The results of the survey in August 2023 showed that the Kendari City Regional Hospital WWTP functioned effectively with a significant decrease in several parameters, namely pH by 1.40%, TSS (Total Suspended Solids) by 68.00%, COD (Chemical Oxygen Demand) by 51.10%, and BOD (Biochemical Oxygen Demand) by 86.70%, while the temperature did not change. In December 2023, the wastewater treatment plant's effectiveness was still not optimal, with a pH of 9.38%, TSS of 21.4%, COD of 31.1%, BOD of 32.7%, and a temperature increase of 5.27%. The effluent from Kendari City Hospital in August 2023 met the quality standards set by the Minister of Environment Decree Number 5 of 2014, with a temperature of 28°C, pH of 7.34, TSS of 71 mg/L, COD of 18.70 mg/L, and BOD of 1.50 mg/L. However, in December 2023, although the effluent still met most quality standards—pH 6.76, TSS 22 mg/L, COD 23.8 mg/L, and BOD 10.7 mg/L —the temperature was 31.1°C, exceeding the set quality standard limit of 30°C.
Co-Authors AA Sudharmawan, AA Abdul Kadir Abdul Rahim Sya’ban Abubakar Abubakar Agus Satriadi Ahmad Hidayat Ahmad Saputra Sukarman Al Azhar, Muhammad Reza Alamsyah, Muh. Irham Amelia, Wa Ode Melinda Anafi Minmahddun Annas Ma'ruf Anshari Nur, Muh. Nadzirin Anshari, Erwin Arsyad, La Ode Muhamad Nurrakhmad Edward Ngii Edward Ngii EKO WAHYU PRASETYO Fitriah, Mas'ud Hasmina Tari Mokui Idul Fitra Ikra Rahmawati Ishak Kadir Ishak Kadir, Ishak Jaya, La Ode Muhammad Golok Jayawarsa, A.A. Ketut Jerry Novianto Kasim, Syaifudin Suhri La Ode Amrul Hasan La Ode Muhamad Nurrakhmad Arsyad La Ode Muhammad Nurrakhmad Arsyad Lalang, Lalang Laode Muhammad Golok Jaya Mahapatih, Wa Ode Siti Warsita Mahdar, Mahdar Muh. Dirham Muhamad Faza Almaliki Muhammad Chaerul Munandar Munandar Nurdillah, Desi Pagiling, luther Pidun, Pidun Putri, Tryantini Sundi Ragorudin, Abdul Karim Renaldi Renaldi Resthu Teno Rini Sriyani Romy Talanipa Romy Talanipa, Romy Santi Santi Saputra, Muh. Nurdiansyah Satyadharma, Maudhy Silondae, Tina Trisarana Andriani Sriyani, Rini Sukri, Ahmad Syarif Sya'ban, Abdul Rahim Tachrir, Tachrir Tamburaka, Romy Suryaningrat Edwin Tri Agus Setiawan Triyantini Sundi Try Sugiyarto Tryantini Sundi Putri Tryantini Sundi Putri Sundi Ulfa, Abd. Hadid Rahman Umran Sarita Uniadi Mangidi Vita Asria Yulinah Trihadiningrum Zulkifli Zulkifli