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All Journal Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan Jurnal Cahaya Mandalika Journal La Lifesci International Journal of Robotics and Control Systems Envirous Journal of Community Service Serambi Engineering
Ali, Munawar
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Agriculture, Biological Sciences & Forestry Humanities Chemical Engineering, Chemistry & Bioengineering Chemistry Control & Systems Engineering Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Immunology & microbiology Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Public Health Social Sciences

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Analisis Status Mutu Air Berbasis Indeks Pencemaran Pada Sungai Marengan Kecamatan Kota Sumenep Ahmad Januarta Pratama; Ali, Munawar; Syadzadhiya Qothrunada Z.N
Jurnal Serambi Engineering Vol. 10 No. 3 (2025): Juli 2025
Publisher : Faculty of Engineering, Universitas Serambi Mekkah

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Abstract

The Marengan River serves as a critical freshwater resource for local residents; however, escalating human-induced activities have contributed to its declining water quality. This research aims to evaluate the river's water quality status through an analysis of water quality indicators and a pollution index assessment. The methodology included field observations, water sampling at five selected points along the river, and laboratory examinations measuring BOD, COD, TSS, DO, nitrate, phosphate, and total coliform levels. Findings revealed that BOD and COD concentrations at all locations surpassed the environmental quality standards, with the third sampling point exhibiting the most elevated levels. The calculated Pollution Index values ranged between 5.24 and 7.85, categorizing the river as moderately to heavily polluted. Key pollution contributors are presumed to include household wastewater, agricultural discharge, and organic matter. The study concludes that urgent action is needed to address the environmental degradation of the Marengan River, through wastewater treatment implementation, watershed area restoration, and active community participation. These interventions are recommended to foster sustainable river basin management and improve overall water quality.
EFFECT OF ROTATION SPEED OF RBC ON SUGAR WASTE WATER TREATMENT Ali, Munawar; Safirin, MT
Jurnal Cahaya Mandalika ISSN 2721-4796 (online) Vol. 3 No. 1: Jurnal Cahaya Mandalika
Publisher : Institut Penelitian Dan Pengambangan Mandalika Indonesia (IP2MI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36312/jcm.v3i1.1493

Abstract

Sugar Industry waste water has a high Chemical Oxygen Demand (COD) content so that it becomes a serious threat to the environment if it is not treated properly. For this reason, it is necessary to carry out processing efforts, one of which is with an alternative processing technology using a Rotating Biological Contactor (RBC). RBC is a wastewater treatment reactor physically and biologically consisting of a circular disk rotated by a shaft at a certain speed. This study aims to determine the efficiency of removal in treating wastewater from sugar factories and to identify microorganisms that play a role in the process of removing organic matter. In this study using variations of disc rotation speed and influent COD concentration. The parameter studied was COD from the sugar factory wastewater from Candi Baru, Sidoarjo. The results of the most effective variations in COD removal were at a disc rotation speed of 4 rpm with an influent COD concentration of 260 mg/L and for parameters. The highest reduction efficiency is 87.69 % for COD. The overall results of this study indicate that changes in disc rotational speed affect the removal efficiency for the COD parameter.
Co-Authors A. A. Ngurah Gunawan Ahmad Januarta Pratama Arale, Ade Lila Aulia Ulfah Farahdiba Diyasa, I Gede Susrama Mas Dwi Arman Prasetya Hendrasarie, Novirina Ibrahim, Mohd Zamri Bin Karuniawan, Hamsah Kinanty, Retno Luchmanandri, Rahmadini Mirwan, M. MT Safirin Murti, Restu Hikmah Ayu Nababan, Dorti Jouba Novembrianto, Rizka Nurhayati, Radityazty Dahayu Nurjanna, Annisa Qatrunada, Sekar Huwaidah Rosariawari, Firra Syadzadhiya Qothrunada Z.N Thohiroh, Mubayyinatuth