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All Journal IPTEK Journal of Proceedings Series Journal of Degraded and Mining Lands Management JOURNAL ONLINE OF PHYSICS SELAPARANG: Jurnal Pengabdian Masyarakat Berkemajuan Jurnal Pengabdian Magister Pendidikan IPA Archipelago Engineering Jurnal Pengabdian Inovasi dan Teknologi Kepada Masyarakat CHEMTAG Journal of Chemical Engineering METIKS: Jurnal Teknik Mesin, Elektro, Informatika, Kelautan & Sains Jurnal Masyarakat Madani Indonesia Komunita: Jurnal Pengabdian dan Pemberdayaan Masyarakat
Ervina Rumpakwakra
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RESPONS PERTUMBUHAN CHLORELLA sp. TERHADAP PENAMBAHAN LIMBAH CAIR ORGANIK PADA MEDIUM KULTIVASI Geraldi Rahanra; Ivonne Telussa; Ervina Rumpakwakra; Alif Nur Laili Rachmah; Sabrianah Baddarudin; Tamaratritania Citta Trisnantari; Muhammad Ikhsan Taipabu
CHEMTAG Journal of Chemical Engineering Vol 7, No 1 (2026): CHEMTAG Journal of Chemical Engineering
Publisher : Universitas 17 Agustus 1945 (UNTAG) Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56444/cjce.v7i1.7040

Abstract

Limbah cair pengolahan sagu dan tahu mengandung nutrien yang berpotensi dimanfaatkan untuk kultivasi Chlorella sp. Karakterisasi meliputi pH, Chemical Oxygen Demand (COD), total karbon (TC), total nitrogen (TN), dan total fosfor (TP), kemudian limbah cair ditambahkan ke dalam medium NaCl salinitas 28 ppt. Kultivasi dilakukan selama 24 hari pada intensitas cahaya 5000 lux dengan fotoperiode 12:12 jam. Air limbah pengolahan tahu menunjukkan kandungan nutrien lebih tinggi dibandingkan air limbah pengolahan sagu, dengan COD masing-masing 23,49 mg/L dan 12,65 mg/L. Konsentrasi sel maksimum diperoleh pada medium kontrol (MK) sebesar 38 × 10⁵ sel/mL (hari ke-21), diikuti perlakuan suplementasi air limbah pengolahan tahu (MLT) sebesar 34 × 10⁵ sel/mL dan air limbah pengolahan sagu (MLS) sebesar 24,9 × 10⁵ sel/mL. Suplementasi limbah cair tidak meningkatkan pertumbuhan dibandingkan kontrol, yang dapat dipengaruhi oleh kondisi pH asam, rasio C:N yang rendah, serta salinitas tinggi yang berpotensi menimbulkan stres osmotik. Meskipun demikian, kedua jenis limbah tetap mampu mendukung pertumbuhan mikroalga dan menunjukkan potensi integrasi kultivasi mikroalga dengan pengolahan limbah cair secara berkelanjutan.
Kajian Kualitas Air Tanah sebagai Upaya Peningkatan Air Bersih di Negeri Assilulu, Kabupaten Maluku Tengah: Indonesia Ervina Rumpakwakra; Micky Kololu; Marcia Violetha Rikumahu; Zulfiah Zulfiah; Kayra Faith Love Patty; Gidion Lohinusa Titasam
KOMUNITA: Jurnal Pengabdian dan Pemberdayaan Masyarakat Vol 5 No 3 (2026): Agustus
Publisher : PELITA NUSA TENGGARA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.60004/komunita.v5i3.527

Abstract

A community service initiative was conducted in Assilulu Village, Central Maluku Regency, aimed at assessing the quality of groundwater used by the local community through physical and chemical parameter testing. Residents rely on groundwater from dug wells and springs as their primary sources for drinking and sanitation, often without knowledge of its quality or safety. Key challenges include potential contamination from seawater intrusion and domestic activities, alongside low public awareness regarding the importance of periodic water quality testing. Consequently, a targeted program involving active partner participation was implemented, comprising public outreach, water sampling, groundwater level (GWL) analysis, laboratory testing, and training on the use of simple water quality testing tools. Physical parameters analyzed included temperature, odor, and total dissolved solids (TDS), while chemical parameters included pH, salinity, CN, PO₄³⁻, SO₄²⁻, K⁺, Ca²⁺, Mg²⁺, Na⁺, Cl⁻, and Mn. Test results were evaluated against drinking water quality standards set by the Regulation of the Minister of Health of the Republic of Indonesia Number 2 of 2023. The study revealed that most groundwater sources in Assilulu Village met drinking water quality standards; however, elevated levels of TDS, Na⁺, and Cl⁻ were observed at Location 1, Location 5, and an old well, indicating seawater intrusion. The initiative resulted in increased community knowledge regarding clean water management and the availability of physical and chemical data; furthermore, partners gained proficiency in using portable water testing equipment, enabling them to continuously monitor the quality of the water they use.
Co-Authors Abdurrohman As Salafi Aditya Ramadhan Afifah Thohirah Akyuwen, Frandy Alif Nur Laili Rachmah Alzagladi, Safina Utari Badaruddin, Sabrianah Brahma Jesayas Bua Delpina Nggolaon Enjelina Riana Minaely Fredrik Manuhutu Gede Wiratma Jaya Gede Wiratma Jaya, Gede Wiratma Geraldi Rahanra Gidion Lohinusa Titasam Hariyati Purwaningsih Hattu, Nikmans Heru Setyawan Ivonne Telussa JAMALUDIN Jony Taihuttu Karthickeyan Viswanathana Kayra Faith Love Patty Kololu, Micky Latupeirissa, Jolantje Marcia Violetha Rikumahu Melvia Natalia Aponno Micky Kololu Muhammad Ikhsan Taipabu Muhammad Ikhsan Taipabu Nggolaon, Delpina Nikmans Hattu Pada, Samuel Simra Silahooy, Stevi Taipabu, Muhammad Ikhsan Thohirah, Afifah Trisnantari, Tamaratritania Citta Veithzal Rivai Zainal Wei Wu Widiyastuti Widiyastuti Zulfiah Zulfiah Zulfiah, Zulfiah