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Pujodadi Village, Trimurjo District, Central Lampung Regency, Lampung Province, what was carried out in this activity included preparation, training and implementation of product manufacturing. The results achieved in implementing the community service program were increasing public knowledge about the benefits of fish bone waste, increasing knowledge in making fish bone crackers and providing a new product, namely fish bone crackers. The training in making catfish bone crackers really helped the Pujodadi community, especially the women of Hamlet 2. In this extension, the women of Hamlet 2 were very enthusiastic about this training. This training is carried out so that waste that is usually thrown away can be used into useful products that are ready to be sold.

The aim of this PKM activity is to provide education and training to the Petiga Village community regarding techniques for processing cow dung into effective and efficient organic fertilizer. Community Service (PKM) in Petiga Village, Marga District, Tabanan Regency-Bali, has succeeded in overcoming environmental problems due to less than optimal management of cow dung. Through training and outreach, community knowledge in processing cow dung into organic fertilizer increased from 20% to 85%. Organic fertilizer production also increased from 10% to 60% of the total cow dung produced. The use of organic fertilizer improves soil quality, marked by an increase in nitrogen, phosphorus and potassium levels, as well as rice yields by 30%. The anaerobic fermentation method reduces odors and groundwater pollution, and provides added economic value through the sale of organic fertilizer. These findings show that this program is effective in addressing environmental problems and increasing agricultural productivity. This livestock waste management model can be replicated in other villages that have similar potential, providing broad benefits for the community and supporting sustainable agriculture.

Maintaining the school environment is the responsibility of each individual to keep the environment clean and comfortable by doing waste management properly. Waste management is the activity of sorting waste according to its type, namely organic waste and non-organic waste. However, there are still many people who do not understand the importance of protecting the school environment by littering. Therefore, in this community service program, waste cleaning activities will be carried out in the SDK Lamablawa environment. The purpose of this activity is to increase the awareness and role of SDK Lamablawa students and teachers in maintaining cleanliness in the school environment. The implementation methods are observation, socialization, installation of daily picket rosters and cleanliness posters, and trash bins, as well as the action of cleaning the school environment with the students and students of SDK Lamablawa and the teachers of SDK Lamablawa who are very enthusiastic. with this activity can help them overcome the problem of waste in the SDK Lamablawa environment.

This research is part of an effort to solve waste management issues in Sleman Regency, focusing on measuring and evaluating the Zero Waste Index (ZWI) in the Green Open Space (RTH) Denggung, Sleman. The resource substitution method was used to assess the efficiency and potential for waste reduction in the area. Based on field data and calculations using the ZWI formula, it was found that the ZWI value in RTH Denggung is very low, only 0.14, meaning that only about 14% of resources are recovered from the waste management system. This indicates that waste management in the area is not yet optimal, necessitating improvement and innovation efforts. The proposed strategies include enhancing the recycling of plastic, paper, and styrofoam waste, as well as developing composting for food scraps and other organic waste. The implementation of stricter policies related to waste management, public awareness campaigns, and the integration of zero waste initiatives are expected to improve the ZWI value. This effort is hoped to be part of the solution to waste management in Indonesia and serve as a best practice example for waste management in RTH or other public spaces..

The population growth that aligns with the increasing diverse needs will lead to an increase in waste or residues, both from consumption processes and the results of activities carried out, in the form of garbage. The purpose of this study is to understand the planning of the waste management system at Al-Amin Living Lab and Industrial Park. The research material is the site location in Sampe Cita Village, Kutalimbaru District, Deli Serdang Regency, considering and taking into account the existing waste management system. Littering will affect the activities of the surrounding community, which can ultimately lead to disease. The data used in the study of the management system involves several data collection techniques, namely, field observation and document analysis, direct observation in the field to observe waste management practices, such as collection, sorting, transportation, and disposal. Based on the results of the study, it is explained that the general activities of waste management planning at Al-Amin Living Lab and Industrial Park include containment, collection, transfer, and transportation of waste to the landfill. In terms of waste management planning at Al-Amin Living Lab and Industrial Park, it will consider the needs of people, the amount of waste generated, containment, and the TPST of Al-Amin Living Lab and Industrial Park area, as well as effective waste management.

Household waste, although a significant environmental challenge, has the potential to be converted into valuable resources. This article discusses effective methods for transforming household waste into Liquid Organic Fertilizer (LOF), an environmentally friendly solution that improves soil quality and supports plant growth. By utilizing materials such as food scraps, fruit peels, and dry leaves, this process not only reduces the volume of waste sent to landfills but also benefits home gardening. The article outlines practical methods for producing LOF, including simple fermentation techniques, necessary equipment, and a step-by-step guide. It also discusses the ecological and economic benefits of using household waste as LOF and its impact on sustainability and waste management. With comprehensive and easy-to-follow information, this article aims to encourage individuals and communities to adopt these practices as part of their waste management and sustainable agriculture efforts.

In this study, bibliometric analysis using VOSviewer and Publish or Perish was employed to identify dominant trends in the analysis of community behaviors related to food waste. The analysis results indicate an increasing interest among researchers in understanding and addressing the social, cultural, and psychological factors influencing food waste behaviors within communities. There has been a paradigm shift in research emphasis from individual factors towards a more comprehensive understanding of the social and cultural contexts that affect food waste behaviors. This research focuses more on developing effective and sustainable food waste reduction strategies at the community level through promoting supportive policies, public education, social campaigns, and participatory approaches. In conclusion, this study contributes significantly to understanding the dominant trends in community behavior analysis related to food waste. The findings provide valuable insights for researchers and practitioners in further research development and assist in formulating policies and strategies for more effective community-level interventions against food waste, with a focus on the social and cultural factors influencing food waste behaviors.    

Problems related to waste have become a hot issue in the community and have received serious attention from policymakers. One practical way to overcome this problem is to manufacture eco-enzyme products whose raw materials use organic waste. Eco enzyme is a fermented process from organic kitchen waste such as fruit and vegetable pulp, sugar, and water until it becomes the final product in liquid fertilizer. This service aims to describe community social activities to overcome waste problems using the eco enzyme concept. The activities carried out were providing counseling related to how to manage household organic waste into eco-enzyme products, introducing and training the use of composter technology to process household organic waste into eco-enzyme products, and motivating and encouraging people to manage household waste into products of economic value. This study uses several methods such as presentation, discussion, question and answer, training, and evaluation handled by lecturers of the Faculty of Agriculture, Timor University. The study results show that people can apply eco enzyme technology, know how to use it, and produce economic value from organic waste.

The rapid growth of healthcare services has significantly increased the generation of medical waste, posing serious risks to environmental and public health, particularly through water quality contamination. This study examines global trends in medical waste management and proposes a hybrid analytical framework combining bibliometric analysis using SCIMAT and predictive modeling based on artificial neural networks implemented in Orange. Bibliometric mapping was employed to identify dominant research themes, temporal evolution, and knowledge gaps in medical waste and water contamination studies from 2000 to 2023. Subsequently, a neural network model was developed to predict potential water quality deterioration associated with mismanaged medical waste, using simulated environmental indicators. The results reveal a strong research focus on incineration, infection control, and hazardous waste, while predictive modeling of water contamination remains underexplored. The proposed hybrid approach demonstrates high predictive accuracy and offers a robust decision-support tool for environmental health policy. This study contributes methodologically and substantively to sustainable medical waste management and water resource protection.

Waste that is not properly processed can cause environmental pollution. In Bangunrejo Village, problems were found in waste management. The emergence of problems in waste management is caused by various factors such as lack of public awareness and supporting facilities and infrastructure. The accumulation of waste in Bangunrejo Village has a significant negative impact on the environment, including soil and water pollution, as well as health problems for local residents. This study aims to analyze the factors causing waste accumulation, negative impacts on the environment, and handling efforts that can be carried out in Bangunrejo Village. The results of the study indicate that active participation between village communities and support from the village government are the keys to success in creating a clean and healthy environment in Bangunrejo Village.

A city is one of the areas heavily populated by people. In Indonesia, there are a total of 98 cities. A city is a complex area because it has various zones such as central zones, industrial zones, and suburban zones. Additionally, a city should also have green open spaces. Green open spaces can help minimize global warming and the greenhouse effect in urban areas. Moreover, cities often grapple with waste issues. Urban residents should develop good mental attitudes and habits, such as not littering. Cooperation between the government, which builds proper and appropriate urban planning by providing green areas, and the public's awareness to maintain city cleanliness by disposing of waste properly, is necessary.

Margomulyo Village has a fairly large area of rice fields, plantations and dry fields where the majority of commodities are rice and corn. The existence of corn chips as a superior product and icon of village MSMEs can be drawn a line that corn cob waste is also wasteful. Briquettes are one of the waste management options where corn cobs contain high carbon materials. So that it can be used as a source of renewable energy for future needs. The purpose of making corn cob briquettes is to minimize waste disposal from corn cobs in Margomulyo Village.

Digital transformation in the public transportation sector is part of the national development priority agenda aimed at improving service quality and operational efficiency. This study aims to analyze the implementation of cashless payment-based digital transformation in public transportation policy on the Suroboyo Bus in Surabaya, analyze service quality based on SERVQUAL dimensions, identify supporting and inhibiting factors for implementation, and evaluate the success and shortcomings of the policy. This research uses a qualitative approach with a descriptive research type. The results show that the implementation of cashless payment on the Suroboyo Bus has been running well since 2018, with four main payment methods: QRIS, e-money cards, plastic waste contributions, and the Child Identity Card (KIA). QRIS has become the dominant payment method with a 48% share in 2025. Service quality based on SERVQUAL dimensions shows good results in the aspects of tangibles, reliability, and responsiveness, but still requires improvement in the dimensions of assurance and empathy. Supporting factors for implementation include government commitment, the availability of regulations (Perwali No. 22 of 2023)., adequate infrastructure, and support from digital payment service providers. Inhibiting factors include limited digital literacy, internet network disruptions, limited economic access, and lack of socialization. The success of the policy is reflected in increased operational efficiency, financial transparency, and a rise in the number of users from 1.2 million (2019). to 3.5 million (2025). Shortcomings of the policy include the digital gap for vulnerable groups, dependence on internet networks, and a decrease in participation in the plastic waste payment program from 25% (2023). to 12% (2025).

This community service program aims to enhance environmental legal awareness through a participatory campus cleanliness initiative involving the academic community at Universitas Sunan Giri Surabaya. The primary issues addressed include limited understanding of environmental law, low participation in maintaining campus cleanliness, and the absence of sustained pro-environmental behavior. The program employed a participatory, educational, and practical approach, involving 50 students as participants. The activities were implemented through stages of environmental law education, waste management training, and direct action in the form of a campus clean-up program. The effectiveness of the program was measured using pre-test and post-test assessments, questionnaires, and field observations. The results indicate a significant improvement in participants’ knowledge, with average scores increasing from 62 to 86. In addition, there was a notable shift in attitudes, reflected in heightened awareness and concern for environmental cleanliness. Behavioral changes were also observed, particularly in the increased habit of proper waste disposal and active participation in maintaining campus cleanliness.The findings demonstrate that integrating environmental legal education with hands-on participation is an effective strategy for fostering comprehensive legal awareness. This program not only impacted individual participants but also contributed to the creation of a cleaner and more sustainable campus environment. Therefore, it has strong potential to be developed as a replicable model of community service in other higher education institutions

Activity Studying Work This is real (KKN) aiming For increase understanding and application use fertilizer compost in society Village Compost chosen as focus main Because its potential in support agriculture sustainable and reduce dependence to fertilizer chemistry . Through socialization This time , the KKN Posko 3 team invited Service Agriculture and Food Kendal Regency for can give education about benefit fertilizer compost , its production , and techniques its use in practice agriculture everyday. The method used For ensure effective knowledge transfer covering consultation , demonstration live , and discussion group . The results of activity This expected can increase awareness public will importance management rubbish organic and application fertilizer compost , so that in the end contribute to improvement productivity agriculture and sustainability environment in the village Gebanganom

This study aims to evaluate use of finger protection PPE in process of sorting plastic glass at SiHatin Waste Bank. The waste sorting process with high risk is the process of cutting plastic cup ring. This research uses qualitative method with case study approach, interviews, and observations to identify problems and find solutions to improve comfort and safety. PPE used for three months was proven to increase safety officers by 80.95%. However, there is discomfort experienced by 18 out of 20 officers due to several factors, namely: precision movements difficulty by 90%, sweat on fingers by 60%, inappropriate size by 45% and skin irritation by 35%. The proposed solutions include using more comfortable materials and ergonomic, setting break times, and training use of PPE to increase its effectiveness. In addition, development of cutting ring tool was developed to reduce the risk of injury and increase worker productivity.

The current technology for using recycled materials in road preservation work is very helpful in maintaining the sustainability of the materials used. Waste from road materials that will be repaired can be reused for new foundation layers. The aim of this research is to obtain a design for the percentage of cement, percentage of emulsified asphalt, unconfined compressive strength and optimum water content in accordance with the applicable engineering specifications so that it can be proven that the existing material from the top foundation layer and asphalt layer can still be used as a new foundation layer. The research method involves conducting experiments on existing materials by conducting laboratory tests on samples of top foundation layer aggregate and existing asphalt in the Cikarang Industrial Area. The experiment was carried out at the Jakarta State Polytechnic Civil Engineering Laboratory with 9 test samples. The results obtained for the recycled foundation layer were that the design cement required was 30.8 grams and 53.1 grams of emulsified asphalt for an area of ​​1m2 with a 7 day unconfined compressive strength obtained from nine samples for variations in cement content of 1%, 3%, and 5% maximum 2.81MPa, so the optimum cement content is 3.6%.

This article aims to examine the potential for optimizing the use of used materials for hydroponic planting media, focusing on two main aspects: community empowerment and environmental management. By utilizing used materials, it is expected to reduce dependence on limited natural resources, reduce agricultural production costs, and reduce the environmental impact of waste. In addition, the application of this technology can provide economic and social benefits to local communities, strengthening their capacity to maating these practices as part of a sustainable development strategy

This community service aims to improve the quality of Biru Lancor Batik in Probolinggo by producing print batik and more variation in batik motifs. Batik craftsmen were also given training to improve their knowledge and skills in the batik business. This activity provides positive results in term of increased quality, production capabilities and managing the performance of batik businesses. To achieve a sustainable business, further service can be focused on developing knowledge and skills in processing batik waste, using dyes from environmentally friendly materials such as twigs, leaves, stems and flowers collected from surrounding, creating batik motifs that reflect environmental conservation and creating a work environment that is safer and more comfortable.

Waste management is a critical component in modern-day living, especially with rapid urbanization and significant waste production. Improper waste management practices can lead to environmental pollution, public health issues, financial losses, and depletion of natural resources. This study focuses on Jatirejo Village, Nganjuk, facing serious challenges related to poorly managed waste disposal practices. Through descriptive-qualitative methods, the research identifies that villagers tend to burn or dispose of waste into rivers due to inadequate infrastructure. Additionally, local policies such as establishing waste bins at the Village Hall and issuing Village Regulations (SK Perdes) have been introduced as solutions to enhance awareness and behaviors in waste management