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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.

Community Service activities are a real form of students' social concern for their surroundings. This activity was carried out in Kampung Enam with the aim of sharing knowledge and skills with the community and students about how to turn seashell waste into handmade crafts that can be sold. We used a face-to-face approach through socialization and training, one of which was making wall decorations in the shape of flowers. Besides involving the local people, students also took part in this activity so they could develop economic independence. The results showed that seashell waste has promising potential, both economically and socially, especially if developed into small environmentally friendly businesses. Hopefully, activities like this can continue and become an example of how to develop local crafts and increase the income of the people around Kampung Enam, Tarakan.

Bankruptcy as a legal remedy for creditors to receive payment from debtors can cause losses for concurrent creditors. The absence of the right to precedence, resulting in concurrent creditors can only receive payment if preferred creditors and separatist creditors have received payment, therefore, it is important to provide legal protection for concurrent creditors in obtaining their right to receive payment. In this research, a normative juridical method will be used through literature study. By using secondary legal sources as well as primary and secondary legal materials relevant to the protection of concurrent creditors in bankruptcy cases. In the research results, it was found that there is an urgency to apply the insolvency test as an effort to protect concurrent creditors from losses to debtors declared bankrupt. Then, it is also important for concurrent creditors to file legal remedies in the event that the debtor is declared bankrupt, but still has the financial ability to pay his debts.

Plastic has become an inseparable part of human life today. Various products used by humans in their daily lives are often found to come from plastic. The use of plastic is growing and its utilization is increasingly widespread in the field of life so that if this waste is not managed properly it will cause pollution. Therefore, this program aims to empower children at the Tunas Bangsa Orphanage, Labuhan Batu by teaching collage skills in utilizing plastic waste into a picture collage. In addition, this program also aims to introduce recycling of plastic waste by being able to select and sort waste in the surrounding environment. This training is equipped with the values ​​of Pancasila and Citizenship Education (PPKn) such as increasing awareness of the rights and obligations of each individual to feel comfortable in the environment and maintain environmental cleanliness. It is hoped that through this program, children can develop creativity skills and play an active role in maintaining environmental cleanliness away from plastic waste. This program also opens up opportunities for them to contribute to the movement to maintain environmental sustainability far from waste.  

his research examines the use of plastic bottle waste as a learning medium for water purification practices in the IPAS subject at MI Jami’yatul Mubtadi’in.The researcher also conducted direct observations at the school to see the actual implementation of this media.The results show that used plastic bottles are effective because they are easy to obtain, inexpensive, and relevant to environmental issues.This media helps students understand the concept of water purification concretely, as well as fostering environmental awareness and recycling skills.The integration of this media can enhance scientific understanding, critical thinking, and environmental awareness.Through observations at Mi Jamiyatul Mubtadiin, the children were enthusiastic in participating in the water purification practical.

The utilization of clam shells as adsorbents has attracted considerable attention due to their ability to adsorb contaminants such as heavy metals, hazardous substances, and oil. Clam shells, which are composed mainly of calcium carbonate (CaCO₃), possess a porous structure that favors adsorption. Calcium carbonate imparts alkaline properties that neutralize acidic effluents and promote the formation of precipitates. Physical and chemical modifications can enhance the surface area and porosity of the shell, thereby enlarging the active sites for contaminant sorption. Clam shells heavy metals such as Pb, Cd, Hg, organic substances and can be used for oil spill remediation due to their hydrophobic and oleophilic properties. The calcination process converts the shells into a material that contaminants such as TSS, COD, and BOD. This utilization not only mitigates pollution but also creates opportunities for adsorbent products with economic value, especially in coastal areas where shell waste is abundant. However, this application must take into account ecological and health impacts, as overharvesting and non-environmentally friendly processing can damage the ecosystem. A sustainable approach with environmentally friendly regulations and technologies is essential to maximize the benefits of clam shells as adsorbents.  

Environmental pollution is now a major problem in the development of science. The problem of water pollution is one of the impacts of the development of science itself. The development of environmentally friendly technology for wastewater treatment towards waste-free production is an important step in maintaining environmental sustainability. Household wastewater produced from various sectors has the potential to pollute the environment if not handled properly. The purpose of this community service is to discuss the importance of utilizing environmentally friendly technology in managing household wastewater towards waste-free production. The use of environmentally friendly technology is the main solution in dealing with household wastewater problems, with the potential to create new economic opportunities. To achieve waste-free production, cooperation is needed between the government, industrial sector, academics, and the community. At the household level, at the micro level, it is currently still lacking to meet the need for clean water due to an inadequate waste disposal system. There needs to be design innovation to minimize the impact of environmental water pollution, one of the simple environmentally friendly technologies for treating wastewater is Constructed Wetland (CW) technology. The application of Constructed Wetland (CW) for household wastewater treatment in Cibunut Village, Kebon Pisang Subdistrict, Bandung City using ornamental plants Iris (Iris pseudoacorus), Water Jasmine (Echinodorus palaefolius) and a combination of both for 2 months, showed that the combination of plants was able to reduce COD, TSS and BOD better than single plants, with efficiencies reaching 95%, 94% and 85% respectively.

This study aims to determine the process of making oil palm empty fruit bunch briquettes through variations in tapioca flour as an alternative material, through the stages of research which include briquette making, namely drying, carbonization and printing. Briquette characterization includes proximate tests, namely water content, ash content, calorific value and densit. From the results of the proximate test at a ratio of 91:9, it shows that the quality of oil palm empty  fruit bunch biochar briquettes with a moisture content of 7.07%, ash content of 8.769%, calorific value of 5850.2 cal/g and density of 0.55 g/cm3. The utilization of oil palm empty fruit bunches not only reduces waste, but also provides a solution for sustainable energy needs.

Limbah dari bengkel mobil berpotensi mencemari lingkungan jika tidak dikelola dengan baik. Bengkel Mobil Pantas belum menerapkan praktik manajemen pengelolaan limbah dengan tepat. Oleh karena itu, sosialisasi ini bertujuan untuk meningkatkan pemahaman dan wawasan pihak bengkel mobil mengenai pentingnya pengelolaan limbah dengan tepat. Kegiatan ini diawali dengan survei pendahuluan untuk mengetahui permasalahan di lapangan. Selanjutnya, dilakukan perumusan solusi dan implementasi yaitu berupa sosialisasi praktik terbaik manajemen pengelolaan limbah bengkel mobil, jenis-jenis limbah yang dihasilkan, cara pemilahan limbah, serta potensi pemanfaatan kembali limbah. Sosialisasi ini menyasar langsung kepada pengusaha bengkel mobil, baik pemilik maupun pekerja. Hasil survei pendahuluan menunjukkan bahwa pihak bengkel masih kurang memahami manajemen pengelolaan limbah. Setelah mengikuti sosialisasi, pengusaha bengkel menunjukkan antusiasme dan komitmen untuk menerapkan praktik pengelolaan limbah yang baik di bisnisnya. Kegiatan ini diharapkan dapat menjadi langkah awal dalam menciptakan lingkungan yang lebih bersih dan sehat.

Based on data from the United States Department of Agriculture (USDA), global coffee production reached 170 million bags per 60 kg of coffee during the 2022/2023 period. Indonesia is noted as one of the largest coffee-producing countries in the world in 2023. The plastic packaging waste from coffee shops is increasing, posing a potential threat to environmental sustainability, such as soil and water pollution. According to Bizhare Contributor in 2023, the Food and Beverage industry in Indonesia has already reduced plastic waste, but there are still plastic packaging, particularly for coffee beans, that cannot be replaced with environmentally friendly materials. From this, the problem of this research is "How is plastic pouch waste sorted in coffee shops and how is it processed to become selling goods?". This research aims to determine the sorting of coffee pouch plastic waste in coffee shops and the processing process to make it into selling goods. The data collected through interviews shows that from the various coffee shops that have mushroomed in Jakarta, there are also coffee shops that care about the environment by sorting plastic waste. This coffee shop, namely Brookland Coffee, participates in donating coffee pouch waste to Demibumi, the process of making coffee pouches Environmentally friendly by Demibumi starts with collecting coffee pouch waste, cutting off the top, and sewing the outside with patchwork, then attaching it with adhesive so it can be folded. The conclusions obtained by DemiBumi prove that concrete action can be taken to overcome this problem. The main conclusion from this issue is that even though it is a big challenge, efforts to manage plastic waste can be successful and have a positive impact on the environment as long as it is carried out carefully by the community, such as through education, awareness campaigns, and the development of innovative solutions to reduce the use of single-use plastics can be steps. significant step.  

One way to recycle and reuse plastic is using ecobricks. Sustainable bags, wallets, chairs, tables, and more may be yours via the ecobrick program's processing of basic, inexpensive materials. This study seeks to inspire Class 6 students at SDN 1 Sumber to become more involved and think outside the box when it comes to recycling and repurposing materials that have high market value. With a descriptive qualitative approach, this researcher involved grade 6 students and homeroom teachers at SDN 1 Sumber as subjects, using interview, observation and documentation methods. The results of this research show a significant increase in understanding of the use of plastic waste into ecobricks and functional goods after participating in practical ecobrick making activities. So students can gain new insight into plastic waste processing and develop creative ideas. This research provides educational and environmental benefits, this activity also supports the development of student character, such as cooperation, creativity and caring. Key words: ecobricks, waste, plastic.

This study explores the potential utilization of phosphoric acid sludge and ZA II lime waste as raw materials for the production of SP-15 fertilizer, which is essential for enhancing agricultural productivity and addressing environmental issues related to waste disposal. The research aims to analyze the phosphorus content (P₂O₅), moisture levels, sulfur (S), and calcium oxide (CaO) in the raw materials and the final fertilizer product. Methods employed include sampling, gravimetric analysis, and spectrophotometry. The findings indicate that phosphoric acid sludge contains an average P₂O₅ content of 33.05%, making it a potential phosphorus source for fertilizer production. Additionally, ZA II lime demonstrates good hygroscopic properties. This research concludes that utilizing these two wastes can not only reduce reliance on chemical fertilizers but also provide economic benefits to farmers and support sustainable agriculture. The implications of this study highlight the need for further research to optimize waste processing techniques and enhance community awareness regarding waste management.

One of the solutions for waste sustainability is the production of compositions of the highest quality from agriculture. Thermophilic microorganisms play an important role in accelerating the decomposition process and improving composition quality. The purpose of this article is to assess the potential of thermophilic microorganisms from Nias Island agricultural waste in compositional manufacturing based on existing literature. This research examines the role of thermophilic microorganisms such as Bacillus, Thermus, and Actinobacteria species in the decomposition of organic matter. This article also discusses microbiological strategies to improve soil health, thermophilic microorganisms in the composting process, the potential of agricultural waste on Nias Island.

Organic waste management in rural communities, especially those dependent on the agricultural sector, is still a big challenge. Organic waste such as crop residues, leaves and household waste are often not utilized optimally, resulting in environmental pollution and wasted potential. Meanwhile, farmers' dependence on chemical fertilizers increases production costs and reduces soil quality in the long term. This service program aims to provide education and assistance to farmer groups in Nagari Harau regarding the use of simple composters as a solution for managing organic waste. A simple composter is a method that is easy to make, cost effective, and can produce compost that is rich in nutrients. A participatory approach is used in implementing this program to ensure active community involvement in the entire process, from waste collection, composting, to utilization of the results. Through this program, it is concluded that communities can be more independent in managing organic waste, reduce negative impacts on the environment, and increase productivity and overall welfare of farmers.