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All Journal Journal of Science and Engineering PAKDEMAS : Jurnal Pengabdian Kepada Masyarakat
Aulia Nur Febrianti
UIN Sunan Ampel Surabaya
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Science and Technology for the Community: Empowering Housewives through the Production of Aromatherapy Candles Made from Used Cooking Oil Aulia Nur Febrianti; Erry Ika Rhofita
PAKDEMAS : Jurnal Pengabdian Kepada Masyarakat Vol 5 No 2 (2026): April
Publisher : Fakultas Pertanian

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58222/pakdemas.v5i2.679

Abstract

This community service program (Iptek bagi Masyarakat) is way to empower housewives through the utilization of used cooking oil into aromatherapy candles as an environmentally friendly and economically valuable household waste management effort. The background of this activity based on environmental issues in RT 03 RW 03, Amir Mahmud Urban Village, Gunung Anyar District, Surabaya City, particularly related to improper waste management and the disposal of used cooking oil. Based on questionnaire results, most residents still dispose of used cooking oil into drainage systems (76.2%) and do not consistently separate organic and inorganic waste. The method used in this program is Participatory Action Research (PAR), which actively involves the community in all stages, including problem identification, planning, implementation, and evaluation. The activities were carried out through socialization on waste management, training on the production of aromatherapy candles, and assistance in the production and packaging processes. The results indicate there is increasing in knowledge and skills among housewives in processing used cooking oil into valuable products. moreover, the program enhances community awareness of proper waste management and creates opportunities for environmentally-based small businesses. Therefore, this program is expected to contribute to improving environmental quality and community welfare in a sustainable manner.
Degradation of Phenolic Compounds Using Pseudomonas aeruginosa and Enterobacter cloacae Bacteria in Groundwater (Case Study: Gempolsari Village) Aulia Nur Febrianti; Dwi Ramadya Risqiana Putri; Rhenny Ratnawati
Journal of Science and Engineering Vol 9 No 1 (2026): Journal of Science and Engineering (JOSAE)
Publisher : Fakultas Teknik Universitas Khairun

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33387/josae.v9i1.11802

Abstract

The Lapindo mudflow disaster in Porong, Sidoarjo, has caused long-term environmental contamination, particularly affecting groundwater quality in surrounding residential areas such as Gempolsari Village. One of the major pollutants identified in contaminated groundwater is phenol, an aromatic hydrocarbon compound that poses significant risks to both human health and aquatic ecosystems. This study aimed to evaluate the effectiveness of Pseudomonas aeruginosa and Enterobacter cloacae in degrading phenol compounds in groundwater contaminated by Lapindo mudflow under aerobic conditions. The biodegradation experiment was conducted using three treatment variations, namely variation A (Pseudomonas aeruginosa : Enterobacter cloacae = 10:0), variation B (5:5), and variation C (0:10). Prior to treatment, groundwater quality parameters including pH, temperature, dissolved oxygen, and phenol concentration were analyzed. Observations of bacterial growth, pH changes, and phenol degradation were carried out at 6, 12, and 18 hours. The results showed that all treatment variations were capable of degrading phenol effectively, achieving complete phenol removal at the 18th hour. However, variation C demonstrated the best performance during the intermediate observation period, reducing phenol concentration from 0.0089 ppm to 0.0046 ppm at the 12th hour with a degradation efficiency of approximately 72.6%. The pH values remained stable within the range of 6–7, indicating favorable environmental conditions for bacterial activity. In addition, bacterial population growth observed throughout the experiment confirmed the ability of both bacterial species to adapt and utilize phenol as a carbon and energy source. These findings indicate that Pseudomonas aeruginosa and Enterobacter cloacae have strong potential for application in the bioremediation of phenol-contaminated groundwater affected by Lapindo mudflow.
Pentahelix Synergy in Coral Conservation: Restoring Ecological Health and Enhancing Social Trust through CBPR in Prigi Bay Dwi Ramadya Risqiana Putri; Aulia Nur Febrianti
Journal of Science and Engineering Vol 9 No 1 (2026): Journal of Science and Engineering (JOSAE)
Publisher : Fakultas Teknik Universitas Khairun

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33387/josae.v9i1.11806

Abstract

Coral reef ecosystems at Mutiara Beach, Trenggalek, face degradation due to sedimentation and non-environmentally friendly tourism. This study documents a community service initiative using a Community-Based Participatory Research (CBPR) approach to rehabilitate the reef and empower local stakeholders. Through a Pentahelix synergy involving academics, government, security forces (TNI), the private sector, and the community, 3800 coral fragments were successfully transplanted onto 12 iron rack units. Results indicate a significant increase in coral cover and fish populations, alongside a rise in tourism visits, evidenced by high ticket sales. Furthermore, the project established a sustainable “field laboratory” and strengthened social trust combining technical restoration with multi-stakeholder collaboration is vital for long-term marine conservation.
Co-Authors Dwi Ramadya Risqiana Putri Dwi Ramadya Risqiana Putri Erry Ika Rhofita Rhenny Ratnawati