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Malang Regency is known as a strategic location with considerable potential as a tourism destination in Indonesia. According to data released by the Central Bureau of Statistics, Malang Regency has recorded 267 tourist destinations spread across 33 districts. This study uses data from one water tourism destination, referred to as Tourism Site X, which focuses on the management and development of recreational areas, including swimming pools, bathing facilities, water attractions, artificial lakes, as well as the management of recreational parks and family facilities such as playgrounds, seating areas, and recreational and educational facilities. Tourism Site X is located in Pakis District, Malang Regency. The reuse of treated wastewater as a non-potable water source for irrigating green open spaces represents a crucial strategic approach to conserving water resources, particularly in water tourism areas such as Tourism Site X, which require substantial water supplies. In practice, the wastewater generated in Tourism Site X mainly originates from domestic sources, including activities such as cleaning swimming pool areas and animal enclosures, toilet usage, and food court operations. This study aims to assess whether the quality of treated wastewater from the wastewater treatment process at Tourism Site X complies with the required standards for green open space irrigation, in accordance with the Regulation of the Minister of Environment/Environmental Control Agency of the Republic of Indonesia Number 11 of 2025 concerning Wastewater Quality Standards and Wastewater Treatment Technologies for Domestic Wastewater, as well as to identify parameters that need to be reduced or eliminated.

The cement packaging waste (paper sack) and leftover cardboard are types of waste generated from daily work activities at PT X. These wastes were found to be piled up without any proper utilization, thus posing a potential breeding ground for disease vectors and potentially polluting the workplace environment. The socialization activity conducted aimed to provide education and innovation in sanitation technology engineering by utilizing mirror frame products with economic value, applying the 3R principles of reducing, reusing, and recycling. The method was implemented through a socialization activity using a one-on-one approach. An evaluation of increased understanding was conducted using pre- and post-tests consisting of 10 questions. Based on the normality test results, a p-value of 0.600 and 0.124 was obtained, which exceeded the alpha value, indicating that the data followed a normal distribution and could proceed with parametric testing using the Paired Sample T-Test. The p-value or sig obtained was 0.006, which is below the alpha value (0.05), so it can be concluded that h alpha is greater than h0. This means that h alpha is accepted and h0 is rejected, indicating that there is a difference between the pre-test and post-test results.

Organic waste management at Yogyakarta International Airport (YIA) is still not optimal, even though organic waste production averages 1,264 kg per month. This community service activity aims to develop technological innovations through the utilization of eggshell waste and Black Soldier Fly (BSF) maggots into economically valuable pellet feed products. The activity was carried out from October 8 to 15, 2025, involving three workers from the Temporary Processing Site (TPS) of PT Angkasa Pura Indonesia YIA. The implementation methods included an initial survey, education, demonstration of pellet production, and evaluation of participants' skills and product quality. The production process involved drying, grinding the ingredients, mixing the ingredients, molding, and drying the pellets. The results showed that the workers were able to independently carry out the production process and produce pellets with good physical quality. Cost analysis showed that the cost of production was IDR 47,989/kg, with a potential profit margin of 30% and an estimated return on investment within ±7 months. This innovation has proven effective in reducing waste volume, increasing the added value of organic waste, and supporting the principles of zero waste and circular economy in the airport area. This program has the potential to be further developed as a model for sustainable organic waste management.

This study is an experimental research with a descriptive qualitative approach aimed at developing innovative hair styling in the form of fantasy buns made from rice straw waste as an environmentally friendly creative expression. The research was conducted through direct experimentation in creating fantasy hair buns using rice straw, followed by product feasibility and aesthetic assessments. The feasibility test was carried out by expert validators using the expert judgement method, while a public test was conducted to measure the level of interest and acceptance of the community through questionnaires distributed via Google Form. The results indicate that rice straw is suitable as an alternative material for creating fantasy hair buns due to its strong texture, easy shaping properties, and the ability to produce unique and artistic visual effects. These findings are expected to contribute to the utilization of agricultural waste into creative and valuable products in the field of hair styling.

Desa Karangrau di Kecamatan Banyumas memiliki lahan subur yang sebagian besar ditanami durian hasil persilangan lokal dan Musangking. Pertanian, terutama budidaya durian, menjadi mata pencaharian utama warga. Para petani tergabung dalam Gapoktan Sumber Makmur dan KWT Setia Tani yang berperan dalam pengelolaan hasil panen. Namun, terdapat beberapa kendala seperti keterbatasan pengetahuan teknik budidaya modern, perawatan tradisional tanpa dukungan teknologi, serta sistem irigasi yang belum optimal. KWT Setia Tani juga menghadapi tantangan dalam pengolahan produk turunan durian akibat minimnya pengetahuan diversifikasi. Padahal, durian berpotensi diolah menjadi roti, selai, tepung, hingga pemanfaatan limbah sebagai bahan bakar alternatif. Melalui peningkatan pengetahuan, teknologi, dan inovasi pengolahan, Desa Karangrau berpeluang menjadi sentra durian unggulan yang mampu meningkatkan nilai tambah dan kesejahteraan masyarakatnya.Desa Karangrau di Kecamatan Banyumas memiliki lahan subur yang sebagian besar ditanami durian hasil persilangan lokal dan Musangking. Pertanian, terutama budidaya durian, menjadi mata pencaharian utama warga. Para petani tergabung dalam Gapoktan Sumber Makmur dan KWT Setia Tani yang berperan dalam pengelolaan hasil panen. Namun, terdapat beberapa kendala seperti keterbatasan pengetahuan teknik budidaya modern, perawatan tradisional tanpa dukungan teknologi, serta sistem irigasi yang belum optimal. KWT Setia Tani juga menghadapi tantangan dalam pengolahan produk turunan durian akibat minimnya pengetahuan diversifikasi. Padahal, durian berpotensi diolah menjadi roti, selai, tepung, hingga pemanfaatan limbah sebagai bahan bakar alternatif. Melalui peningkatan pengetahuan, teknologi, dan inovasi pengolahan, Desa Karangrau berpeluang menjadi sentra durian unggulan yang mampu meningkatkan nilai tambah dan kesejahteraan masyarakatnya.

An educational activity on the use of agricultural waste as animal feed through fermentation technology was held in Kapedi Village, Bluto Subdistrict, Sumenep Regency. The aim of this activity was to improve farmers' understanding and skills in processing agricultural waste, such as rice straw and corn cobs, into alternative feed that is highly nutritious and environmentally friendly. The methods used included interactive extension, practical fermentation feed production, discussion, and evaluation. The results showed high enthusiasm among participants, increased knowledge about fermentation technology, and successful production of fermented feed that was liked by livestock and had the potential to increase productivity. The main obstacles, namely limited initial knowledge and the length of fermentation time, could be overcome with technical assistance. This extension not only provides an economical and high-quality livestock feed solution but also supports sustainable agricultural waste management. It is recommended that fermentation materials be facilitated, advanced training be provided, and socialisation be carried out in other villages so that the benefits of this technology can be expanded.

Program pengabdian masyarakat ini bertujuan untuk meningkatkan pengetahuan dan keterampilan warga Desa Gununglurah dalam mengolah limbah organik rumah tangga menjadi produk ecoenzim yang bermanfaat untuk kesehatan, kebersihan, dan pertanian. Metode yang digunakan adalah pelatihan, demonstrasi, serta pendampingan pembuatan ecoenzim berbahan dasar sampah organik (kulit buah, molase atau gula merah, dan air). Dari sudut pandang farmasi, ecoenzim mengandung senyawa bioaktif hasil fermentasi yang dapat diaplikasikan sebagai pembersih alami, pengendali bau, serta berpotensi sebagai bahan tambahan dalam produk kesehatan tradisional. Hasil kegiatan menunjukkan antusiasme warga yang tinggi, peningkatan pemahaman tentang pengolahan limbah, serta kemampuan menghasilkan ecoenzim secara mandiri. Pelatihan ini berkontribusi terhadap peningkatan kesadaran kesehatan lingkungan dan potensi pemanfaatan ecoenzim dalam mendukung konsep green pharmacy.

Ketergantungan pada pestisida kimia dalam kegiatan pertanian berdampak negatif terhadap kesehatan manusia, lingkungan, dan menimbulkan resistensi hama. Pemanfaatan limbah organik seperti kulit bawang putih, kulit bawang merah, dan daun pepaya berpotensi sebagai bahan baku pestisida alami karena mengandung senyawa bioaktif yang bersifat insektisida. Tujuan dari program pengabdian masyarakat ini bertujuan untuk memberikan edukasi pembuatan pestisida alami dari bahan lokal di Desa Cibangkong, meningkatkan keterampilan masyarakat dalam mengolah limbah organik menjadi pestisida nabati, dan mendorong penerapan pertanian ramah lingkungan. Metode pada kegiatan dilaksanakan melalui sosialisasi bahaya pestisida kimia, pelatihan pembuatan pestisida alami berbahan kulit bawang putih, kulit bawang merah, dan daun papaya.

Catfish dregs fish bone gelatin extraction still has the potential to be utilized by processing it into flour. Catfish dregs fish bone gelatin extraction can be used as an additional source of calcium in mango fruit leather products. This study goals to know the effect of adding catfish bone meal on the chemical also organoleptic characteristics of mango fruit leather. This study used a CRD with a single factor, the addition of catfish bone gelatin waste flour with 5 levels of treatment, including; P0 (control), P1 (2.5 grams), P2 (5 grams), P3 (7.5 grams), also P4 (10 grams). The variables observed included water content, reducing sugar content, vitamin C content, calcium content also organoleptic properties (color, aroma, texture, taste also overall). The results of adding catfish bone flour had a significant effect on fruit leather moisture, vitamin c, also calcium levels (p <0.05). Treatment P4 produced the best results, especially in terms of water content, vitamin C content also calcium content, while P2 was the best treatment in terms of organoleptic parameters. The results of the chemical characteristics with the best treatment had a vitamin C content of 51.3 mg/100, a water content of 12.6% (ww) and a calcium content of 1.82% and from organoleptics an overall score of 3.77.

The RUFSA Program (Rusa untuk Fertilizer Sustainable Agriculture) is an innovative initiative that transforms Timor deer (Rusa timorensis) manure waste from a conservation breeding site in Cakura Village, South Sulawesi, into organic biofertilizer. The program, implemented by PT Pertamina Patra Niaga Integrated Terminal Makassar in collaboration with the local community, aims to reduce manure waste, support wildlife conservation, and provide environmentally friendly fertilizer for sustainable agriculture. The method involves collecting deer manure directly inside the enclosure, mixing it with water and EM4 activator, and regularly stirring to ensure sufficient oxygen supply during a 7–14 day aerobic fermentation process. This approach not only reduces organic waste and minimizes unpleasant odor but also decreases the risk of disease transmission. The resulting biofertilizer is applied to cultivate odot grass (Pennisetum purpureum cv. Mott), small trees, and ornamental plants such as bougainvillea (Bougainvillea sp.), demonstrating practical benefits for local agriculture. Economically, the program contributes to an annual saving of IDR 3,240,000 by reducing the dependency on chemical fertilizers. Beyond its economic outcomes, RUFSA also strengthens community participation in environmental management and raises awareness of the importance of sustainable practices. Furthermore, the program aligns with the Sustainable Development Goals (SDGs), particularly those related to food security, economic growth, responsible consumption and production, and terrestrial ecosystem conservation. Overall, the RUFSA Program exemplifies an integrative approach that combines conservation, waste management, and community empowerment to promote environmentally responsible and sustainable agricultural development.

Kebonagung hamlet in Sukolelo village is an area where the majority of residents cultivate bananas. The abundant banana production generates a considerable amount of waste, one of which is banana stems that are usually piled up, burned, or left to rot without further use. Therefore, this community service project aims to provide a comprehensive overview of the potential use of banana waste as raw material for organic compost in Kebonagung Hamlet, Sukolelo Village. The methods used in this study involved banana farmers as research subjects and banana stems as research objects, with data collection techniques including field observations, interviews with farmers, and composting experiments. Simple laboratory analysis shows that compost from banana waste contains 1.8% nitrogen (N), 0.9% phosphorus (P), and 2.3% potassium (K), making it highly potential for use as compost material. In addition, composting activities can create new jobs through the development of organic fertilizer management business units at the village level. This is in line with Sustainable Development Goal (SDG) 12 on responsible consumption and production. According to Santoso (2020), the benefits of compost include: (a) improving soil structure, (b) increasing soil water storage capacity, (c) increasing soil microbial activity, and (d) reducing dependence on chemical fertilizers. Qualitative data were analyzed through data reduction, data presentation, and conclusion drawing in the form of nutrient content analyzed using simple laboratory tests to determine the levels of N, P, and K. The banana waste composting process went well. In the first week, the temperature of the compost pile increased to 45°C, indicating high microorganism activity. The temperature stabilized at around 50–55°C. After the second week, the temperature decreased and stabilized close to the ambient temperature, indicating that the compost was mature.

Used cooking oil is a household waste that may pollute the environment and harm human health if disposed of or reused improperly. This community service program aimed to provide a waste management solution while enhancing the community’s economic skills through training on producing aromatherapy candles from used cooking oil. The implementation method included awareness sessions on the hazards of used cooking oil, technical training using a learning by doing approach, and assistance in production and marketing. A total of 30 participants from the Family Welfare Movement (PKK) took part in the program. The results indicated improved knowledge and skills, the production of approximately 50 aromatherapy candles with lavender, rose, and vanilla scents, and the establishment of a community group committed to continuing independent production. The program contributed positively to the environment by reducing around 15 liters of waste oil per month and created new entrepreneurial opportunities for residents. Therefore, this initiative can serve as a sustainable community empowerment model based on circular economy principles.

This community service program was designed to empower residents of RW 06 Kalibaru, North Jakarta, by transforming local organic waste—such as sawdust and seashells—into a high-value commodity: oyster mushrooms. The training began with a needs assessment to ensure the relevance of the materials, followed by the application of the Adult Education (POD) approach, integrating theoretical and practical learning. The theoretical sessions provided participants with insights into economic prospects, nutritional benefits, and business opportunities, while the practical sessions developed technical skills in substrate preparation, sterilization, inoculation, and mushroom maintenance. The program was reinforced through participatory discussions, demonstrations, and simulations to ensure effective skill transfer. Monitoring and evaluation were conducted via Focus Group Discussions, and continuous mentoring was carried out through field visits, online communication, and the formation of farmer groups as collaborative platforms. As a result, participants demonstrated a significant improvement in knowledge and technical skills, accompanied by greater awareness of the economic potential of previously discarded waste. This initiative not only serves as an innovative solution to environmental problems but also acts as a catalyst for the application of the circular economy, creating micro-enterprise opportunities and strengthening community economic independence. The synergy between universities, the local community, and industry partners is a key factor in sustaining the program, with recommendations for expanding training on product diversification, marketing strategies, and policy support to accelerate business development. Additionally, the success of the program has opened new avenues for sustainable entrepreneurship, particularly in communities with limited resources. The involvement of local stakeholders—such as community leaders and small businesses—has been instrumental in fostering a sense of ownership and shared responsibility for the program's success. The use of organic waste as a resource for mushroom cultivation also aligns with broader environmental goals, such as reducing waste and promoting sustainable practices.

Household organic waste production in Thekelan Hamlet has increased along with population density and agricultural activities, potentially having negative impacts on the environment and health. However, this waste actually has the potential to be processed into environmentally friendly products with economic value, one of which is eco-enzymes. This community service activity aims to increase community awareness and skills in processing organic waste into eco-enzymes through a participatory approach, technical training, and live demonstrations. The main partners in this activity are housewives and village environmental cadres, who are the main targets for introducing organic waste processing techniques. During the implementation, participants were trained on the benefits and how to produce eco-enzymes independently. This activity not only provided an understanding of the eco-enzyme production process but also motivated participants to produce eco-enzymes independently at home. The results of this activity showed a significant increase in understanding of the benefits of eco-enzymes as an environmentally friendly product, which can be used as a natural cleaner and organic fertilizer. In addition, participants also began to demonstrate the initiative to produce eco-enzymes independently, which has the potential to reduce household organic waste and increase economic value through the utilization of this product. The findings from this activity demonstrate that community-based waste management can not only be an environmentally friendly solution but also has high economic value. This empowerment model can serve as a sustainable model and be implemented in other areas, providing extensive benefits to the environment and the local economy. Furthermore, this activity introduced the concept of sustainable waste management to the community, providing them not only with new knowledge about organic waste processing but also with the opportunity to apply these techniques in their daily lives.

The use of palm oil waste as boiler fuel is one of the innovative solutions in supporting the use of renewable energy while reducing the environmental impact of palm oil industry waste. Waste such as palm shells, mesocarp fibers, and empty oil palm bunches have high energy potential through direct combustion and other thermal technologies. This study aims to evaluate the potential use of palm oil waste as boiler fuel based on its calorific value, combustion efficiency, and environmental impact. The methods used include analysis of the physical and chemical characteristics of waste, boiler performance tests, and exhaust gas emission evaluation. The results show that palm oil waste has a high calorific value (15–20 MJ/kg), which makes it an efficient alternative fuel. In addition, the use of this waste is able to reduce dependence on fossil fuels while minimizing carbon emissions, thereby supporting the greenhouse gas emission reduction target. From an operational perspective, the use of palm oil waste in industrial boilers can increase combustion efficiency by up to 75–85%, depending on fuel conditions and boiler design. This makes palm oil waste not only economically valuable, but also strategic in supporting the transition to clean energy. Another advantage is that waste management becomes more targeted, because solid waste that is usually only an environmental burden can be reused as an energy source. However, some of the challenges that need to be considered include relatively high ash levels, the potential for corrosion in boiler equipment, and the need for emission control technology to comply with environmental standards. With the right mitigation strategy, palm oil waste can be processed into sustainable and environmentally friendly energy.

Natural resource management in Paccellekang Village, which includes rice paddies, plantations, and teak trees, remains suboptimal despite its significant potential, particularly the abundant wood waste. This wood waste largely originates from agricultural activities, plantations, and small-scale wood processing. Currently, this waste is often simply burned or dumped, potentially polluting the environment and causing air pollution. However, if managed properly, wood waste can be transformed into high-value products that can provide financial benefits to the community. This community service activity aims to empower farmer groups through training in processing wood waste into marketable products such as charcoal, liquid smoke, and wood flour. These products not only have economic value but are also useful in various sectors, for example, liquid smoke as a natural preservative, charcoal as an environmentally friendly fuel, and wood flour as an industrial raw material. The program implementation method uses a structured approach that includes initial observations to identify potential partners and needs, outreach to provide a comprehensive understanding of the program's objectives, and training in wood waste processing technology. Furthermore, intensive mentoring and evaluation of implementation results are provided to ensure program sustainability. The results demonstrated that the farmer group members understood the concept of productive wood waste management and demonstrated high enthusiasm for developing innovative products. This program successfully improved the community's skills in utilizing local resources while reducing the negative impact of waste on the environment. Thus, this activity contributed to increasing community income and supporting sustainable economic development in Paccellekang Village.

This study aims to examine the use of cattle waste as organic fertilizer to minimize agricultural operational costs in Mrawan Village, Tapen District, Bondowoso Regency. Cattle waste, particularly manure, is an abundant local resource that has not been optimally utilized by the local community. The majority of farmers in the village still rely on chemical fertilizers, which are relatively expensive and have a negative impact on long-term soil health. Therefore, this program is designed to provide a sustainable alternative solution through an educational approach and community empowerment. The methods used in this activity include outreach, technical training, and direct assistance in the process of making organic fertilizer from cow manure. Education focuses on simple fermentation techniques, the composition of natural additives, and appropriate fertilizer application methods. Farmers are actively involved in every stage of the activity, so they become not only beneficiaries but also agents of change in environmentally friendly agricultural practices. The results of the activity indicate that the use of organic fertilizer from cattle waste can reduce the cost of purchasing chemical fertilizers by up to 40% in a single planting season. In addition, organic fertilizer has been shown to increase soil fertility, improve soil structure, and support healthier plant growth. Environmental impacts are also reduced, as livestock waste management is more controlled and does not pollute water or air sources. Therefore, utilizing cattle waste as organic fertilizer not only reduces environmental pollution but also provides an economic and ecological solution that benefits local farmers. This program is expected to become a model for empowerment that can be replicated in other areas with similar characteristics.

Plastic bottle waste is a leftover material that is no longer used from human activities. Flower bouquet has become one of the necessities, especially for teenagers to adults. Comparison of the price of a bouquet of real flowers and artificial flowers is quite expensive, making a bouquet of flowers from plastic bottle waste a new innovation. The purpose of this study was to determine the process of making a flower bouquet, determine product validation, determine the public acceptance of the product, and determine the comparison of the price of production costs of a flower bouquet of plastic bottle waste, real flowers, and artificial flowers. This research uses the methods of observation, literature, experimentation, documentation, interviews, and questionnaires. The process of making a bouquet consists of the preparation of tools and materials, and manufacturing steps starting from bottle selection, bottle cleaning, bottle formation according to flower patterns, pattern assembly, application of color paint, glitter, and clear paint. Making a flower bouquet from plastic bottle waste was carried out through three experiments. The results of the validation test to 3 expert validators based on the assessment of shape, color, appearance, circuit patterns, and color combinations that obtained decent results were the products in the third experiment with a score of 15. The results of the public test to 34 respondents on the public acceptance of the products in the third experiment based on aspects of shape, color, appearance, circuit patterns, and color combinations were very like (score 3). So that the product in the third experiment was accepted by the community. So that the product in the third experiment is accepted by the public and has the potential to become a business opportunity. We recommend that craftsmen streamline time in the manufacturing process and use gloves to avoid droplets of wax glue and cuts due to cutters or sharp bottle parts.

The correctional facility SAE L’SIMA in Malang is confronted with two major challenges: the environmental impact of accumulated cow manure and the need to provide meaningful vocational training for inmates to support rehabilitation and reintegration. This community service program was designed to address both issues simultaneously through the introduction and application of biogas technology. The primary objective was to manage livestock waste as an alternative renewable energy source while equipping inmates with practical technical skills applicable beyond the correctional setting. The implementation method employed a participatory approach that involved several stages, including program socialization, site survey, biogas unit design, assembly of a small-scale digester, and subsequent monitoring and evaluation.The results demonstrated that the biogas unit was successfully constructed and operational; however, gas production levels remained below optimal standards. Key challenges identified included unstable temperature conditions, which negatively affected the fermentation process, and technical problems such as leakage in the piping system. These obstacles limited the overall effectiveness of gas generation. Despite these limitations, the project provided significant outcomes. First, it created a working model of sustainable energy generation within the correctional environment. Second, it delivered valuable vocational training for inmates, offering them both theoretical knowledge and hands-on experience in renewable energy technology. Furthermore, the program encouraged inmate participation, fostering teamwork, responsibility, and problem-solving skills that are essential for personal development.In conclusion, although technical barriers remain, this initiative succeeded in establishing the foundation for sustainable waste management and renewable energy application within a correctional facility. More importantly, it highlights the potential of biogas technology not only as an environmental solution but also as a rehabilitative vocational training tool. Continued monitoring, process optimization, and technical refinements are essential for achieving long-term success and scalability of this model in similar institutional contexts.

This community service program aims to empower housewives in Pendrikan Lor Subdistrict through training in processing fabric scraps into creative products, such as keychains, headbands, and brooches. This activity is expected to provide practical skills and knowledge that can be applied to establish and develop Micro, Small, and Medium Enterprises (MSMEs) based on local resources. The training is conducted in a participatory manner with a focus on hands-on practice, enabling participants to produce marketable products and enhance their economic independence. The program's outcomes demonstrate improved technical skills and motivation to start businesses, as well as positive contributions to reducing textile waste in the surrounding environment. Thus, this community service initiative supports women's economic empowerment and the development of sustainable, creative MSMEs in the region.