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Indonesia has extraordinary resources and potential in developing renewable energy sources (RES), but various obstacles must be overcome in implementing RES. The purpose of this study is to analyze the gap in the application of RES. This gap includes energy knowledge, community participation, battery waste management, service quality, regulation, and legal policy. This study uses a mixed-methods approach, by conducting a structured questionnaire in quantitative data collection, while qualitative data collection through special interviews, focused group discussions, and conducting policy regulation analysis. The results show that 62% of people do not understand RES, 28% are involved in project planning, and 74% are unaware of SOP (standard operating procedures) regarding battery waste recycling. The results of the correlation analysis reveal a positive relationship between the level of knowledge and interest in RES (R = 0.56). Also, the developed community-based participation model includes initial involvement, transparency of information, and local incentives. These findings further strengthen the compatibility of the innovation diffusion theory, planned behavior theory, SERVQUAL, and the theory of public interest. This study will make a practical contribution through evidence-based strategies in increasing resilience, especially for policymakers and energy service providers. The impact of the policy aspects includes the need for large reforms, education, public campaigns, and the realization of battery waste management systems. This study also provides an opportunity for further study by expanding the geographical scope and related industrial sectors.  

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.

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.

Zinc (Zn) is one of the most common heavy metal contaminants found in industrial wastewater and solid residues such as slag, electroplating waste, and metal ash. At excessive concentrations, Zn can cause environmental disturbances, including toxicity to aquatic organisms, disruption of microbial activity, and groundwater contamination. Long-term exposure may also lead to bioaccumulation and potential health risks to humans. This article presents a comprehensive literature review that discusses the chemical properties of Zn, its environmental behavior, and the development of recent treatment technologies within the last five years. Several techniques, including adsorption using modified or composite materials, biosorption utilizing microalgae and agricultural biomass, as well as solidification–stabilization with amendment agents such as biochar or iron-sulfide compounds, are evaluated and compared. The literature indicates that no single treatment method is universally effective for all waste types; therefore, hybrid or integrated treatment systems are considered more efficient and sustainable. Based on the reviewed evidence, this study proposes an engineering concept that emphasizes environmental safety, cost-effectiveness, and industrial applicability.

This study aims to analyze the effect of Environmental, Social, and Governance (ESG) on the financial performance of mining companies listed in the Jakarta Islamic Index (JII70) for the 2020–2024 period, with the Debt to Equity Ratio (DER) as a control variable. The findings show that, partially, the Environmental variable has a positive but insignificant effect on ROA, indicating that efforts in energy efficiency, waste management, and emission reduction have not yet been fully reflected in short-term profitability. In contrast, the Social variable has a significant effect on ROA, emphasizing that companies’ engagement in building stakeholder relationships, protecting employee rights, and implementing social responsibility programs contribute substantially to financial performance. The Governance variable also has a significant effect on ROA, highlighting the importance of good governance practices, transparency, and accountability in enhancing profitability. Meanwhile, the control variable DER shows no significant effect on ROA. Simultaneously, ESG performance has a significant effect on ROA, proving that integrated ESG implementation supports the profitability of mining companies. These findings confirm that ESG is not only a compliance measure with sustainability principles but also a long-term business strategy that strengthens companies’ competitiveness and serves as a crucial consideration for investors in making investment decisions.

The issue of inorganic waste such as plastic and used paper in industrial environments remains an important issue that affects the cleanliness and aesthetics of work areas. PT Pertamina Patra Niaga Fuel Terminal Rewulu faces challenges in managing non-hazardous solid waste due to limited sorting systems and waste transportation frequency. This Community Service activity aims to improve workers' understanding and skills through socialization and training in making ecobricks as a solution for utilizing inorganic waste. The methods used include pre-activity stages, socialization and hands-on practice, and evaluation through pre-tests and post-tests. The results of the activity showed a significant increase in participants' knowledge after the training, proving the effectiveness of interactive methods in strengthening understanding of the 3R (Reduce, Reuse, Recycle) concept. In addition to reducing waste volume, this activity also fostered awareness and participation among workers in creating a clean and sustainable work environment. The results of this community service are important as a first step in building a culture of independent waste management in industrial environments and can be replicated in other locations with a similar approach. Keywords: Implementation of Pancasila values, bullying prevention, character education, primary school, SDN 1 Jatisela, school environment, student behaviour.

This study explores the implementation of circular economy principles within Safina Quilt, an MSME in Balikpapan that transforms textile waste—such as fabric scraps and discarded clothing—into value-added products. Safina Quilt applies the concepts of reduction, reuse, and upcycling throughout its production processes using quilting techniques, while simultaneously establishing an inclusive supply chain that engages local tailors, individuals with disabilities, and homemakers. This business model not only delivers economic gains by increasing profit margins and expanding market reach but also generates substantial social benefits by empowering vulnerable community groups. Although challenges remain, including limited access to supporting materials, constraints in production capacity, and insufficient digital marketing efforts, Safina Quilt demonstrates how MSMEs can successfully integrate environmental, economic, and social sustainability. Strengthening supply chain mechanisms, enhancing production capabilities, and improving digital marketing strategies are essential for scaling up and ensuring long-term business sustainability.

The use of sengon albasia ash waste as a partial cement substitute in concrete production is carried out to reduce combustion waste and also reduce cement use. This study focuses on the use of sengon albasia wood ash waste. The use of sengon albasia wood ash as a cement substitute causes a significant decrease in the slump test value. The use of sengon albasia wood ash as a partial cement substitute in concrete mixes actually produces different results depending on the proportion. If added as much as 10%, the concrete's compressive strength actually increases, but if it reaches 20% or 30%, the compressive strength actually decreases. This occurs because this type of wood ash has a significant water absorption capacity. As a result, the water that should be used for The chemical activity occurring between cement and water is diminished, so that the bond between the cement mixture as a binder and aggregate as a filler is reduced, and ultimately the concrete's compressive strength also decreases.

Stunting remains a significant child health issue in Indonesia, particularly in Bulungan Regency, with prevalence rates demanding multisectoral interventions. Low socioeconomic factors play a crucial role in stunting incidence due to limited access to nutritious food and healthcare services. This community service aims to optimize rice waste, especially straw and husks, as alternative energy sources to empower local economies and prevent stunting in Sajau Hilir Village. A participatory method was employed through direct education and training involving the PKK women's group. The activities focused on socializing the processing of rice waste into economically valuable products such as rice husk charcoal briquettes and biosensitizers from rice straw. The results showed increased knowledge and skills among community members in converting waste into environmentally friendly and marketable alternative energy products. Utilizing rice waste not only reduces agricultural waste but also opens new economic opportunities sustainably and independently, strengthening family economic resilience and enhancing the ability to meet children's nutritional and healthcare needs. Thus, optimizing rice waste provides a strategic contribution to integrating environmental management and accelerating stunting reduction through local economic empowerment. Recommendations include strengthening community institutions, developing joint business units, and fostering collaboration between universities and local governments.

This Community Service Program aims to enhance the awareness, knowledge, and practical skills of teachers and students at SD Negeri 2 Palembang in carrying out independent waste management. The main issue identified was the lack of awareness and discipline in sorting organic and inorganic waste, which contributes to environmental pollution and poor hygiene within the school area. The program was implemented through lectures, interactive discussions, and hands-on training involving the use of separate bins for different waste types. The results demonstrated a remarkable improvement in waste management understanding and behavior. Teachers and students have developed new habits of waste sorting before disposal, resulting in a cleaner, healthier, and more pleasant school environment. Additionally, the activity inspired creativity in transforming inorganic waste into useful and economically valuable crafts that can be reused. Overall, this program fostered environmental awareness, strengthened community participation, and encouraged sustainable waste management practices as part of daily school culture.

Waste management remains one of the major challenges in urban areas, including Rungkut Menanggal Subdistrict, Surabaya. Although two active waste banks already exist, community participation and the optimization of social and material assets remain limited. This community empowerment program aims to optimize local potential through the strengthening of social and material assets based on waste bank activities using the Asset-Based Community Development (ABCD) approach. This approach emphasizes the utilization of existing community strengths and resources to create sustainable social transformation. The program was carried out through five participatory stages: discover, dream, design, define, and destiny. The results show a significant improvement in the community’s capacity for household waste management. Residents were able to process approximately 100 kg of organic waste into compost and create creative products such as decorative bags made from plastic waste. Moreover, collaboration among local institutions such as Karang Taruna Arkidli, PKK, Posga Venus, Posga Bumi, and KSH increased, strengthening collective action in environmental management. This program demonstrates that the ABCD approach effectively enhances social capital, increases community participation, and generates both economic and environmental benefits. Waste bank management based on local asset empowerment can serve as a model for inclusive and adaptive community development in urban environmental contexts.

This study formulates a design concept for the Beach Tourism Resort Area in Botubarani Village by applying tropical architecture that responds to coastal climatic conditions while enhancing the quality of visitor experiences. The research integrates principles of thermal comfort, environmental sustainability, and the ecological potential of coastal environments as the basis for creating climate-adaptive and environmentally responsive tourism areas. The methodology includes site analysis, field observation, climatological assessment, and a literature review related to tropical architecture and coastal tourism design. The collected data were used to determine building orientation, mass layout patterns, visitor capacity, materials, vegetation, and utility systems appropriate for humid tropical climates. The findings show that the site’s position between the sea and the mountains, combined with full-day sun exposure, requires design strategies that maximize cross-ventilation, utilize sloped roofs, provide natural shading, and apply local materials such as wood, bamboo, and red brick. The large spatial needs based on visitor capacity projections are accommodated through a flexible cluster layout that supports visual and functional connectivity between buildings while incorporating green open spaces to enhance microclimate comfort. The utility system is designed using sustainability principles through greywater–blackwater separation, infiltration wells, and recycling-based waste management. This study confirms that the application of tropical architecture in coastal tourism areas can improve thermal comfort, energy efficiency, and environmental sustainability. These findings guide developing tropical tourism area designs that are more adaptive to climate change and more responsive to visitor needs.

Waste management is an urgent environmental issue that requires active community participation. This study aims to analyze the speaking skills of members of the Sapu Lidi Community in Pekalongan during waste management discussions, a community that actively processes organic waste into valuable products such as eco-enzyme. Using a qualitative approach and an ethnographic case study design, this research explores speaking skills within its natural social context. Data were collected through in-depth interviews and non-participatory observation of community discussions, then analyzed using thematic analysis techniques. The findings show that the community members' speaking skills are characterized by fluent delivery, appropriate and credible word choice, and a persuasive, egalitarian, and humorous speaking style. Community members utilize rhetorical strategies such as humor, calls to action, and concrete evidence such as harvest results to build participation and environmental awareness among residents. The application of dialogic communication and the integration of verbal delivery with hands-on practice demonstrations proved effective in achieving the community's goals. Academically, this research contributes to environmental communication studies within grassroots communities. Practically, the findings can serve as a foundation for developing speaking skills training for volunteers in similar communities in other areas.

Communal land in Kenagarian Tarantang has undergone conversion into tourism areas, bringing impacts on local environmental conditions. This study aims to explain the forms of communal land conversion into tourist areas, environmental conditions after conversion, and its impact on the environment in Kenagarian Tarantang. The research employed a quantitative associative approach involving 50 respondents randomly selected from 789 households. Data were collected through questionnaires, field observations, and interviews, then analyzed using simple regression analysis. The results showed that communal land conversion occurred intensively for homestay construction and tourism facilities with a total score of 1121 in the good category. Environmental conditions were generally well-controlled with a score of 983 in the very good category, although there were impacts such as reduced vegetation and decreased water quality. Regression analysis confirmed a significant influence between communal land conversion and environmental conditions at 18.49 percent with a significance value of 0.002. Community participation in maintaining the cleanliness of tourism areas was very good, however, stricter government supervision, reforestation programs, and adequate waste management are needed to prevent ecosystem degradation in the future.

Carbonate rocks are one of the most important geological resources with a significant role in various industrial sectors, particularly as the main raw material in cement, lime, and construction industries. This study aims to review the characteristics, quality, and industrial potential of three major carbonate rock types—limestone, dolomite, and marble—based on relevant scientific literature. The research employed a literature review method using a qualitative-descriptive approach through analysis and synthesis of previous studies. Data were collected from scientific publications addressing the mineralogical, chemical, and physical aspects of carbonate rocks and their implications for industrial performance. The findings indicate that the quality of carbonate rocks is largely determined by mineral composition (calcite and dolomite), chemical purity (CaO and MgO), and the presence of impurities such as silica, alumina, and iron oxides. High-purity limestone rich in calcite is identified as the most efficient raw material for cement and lime industries due to its stable processing behavior and lower energy requirements. Conversely, dolomite with high magnesium content requires process adjustments to prevent excessive MgO formation during calcination. Marble, both in natural and waste powder form, shows promising potential as a supplementary material in sustainable cement production. Overall, this study emphasizes that understanding the mineralogical and chemical variations of carbonate rocks is essential for optimizing their processing strategies and promoting sustainable industrial utilization 

The global environmental crisis caused by plastic pollution has intensified in recent years, particularly in aquatic ecosystems such as rivers, lakes, and oceans, creating an urgent need for effective and sustainable solutions. This article explores the potential role of aquatic bacteria in degrading plastic polymers by reviewing the biological and molecular mechanisms these microorganisms use to break down complex synthetic materials. Special attention is given to key genes and enzymes involved in plastic degradation, including PETase and MHETase, which play a critical role in the decomposition of polyethylene terephthalate (PET). In addition, the article highlights advanced gene expression and analysis techniques, such as metagenomics, transcriptomics, and proteomics, to better understand bacterial activity and degradation dynamics in natural environments. The main problem addressed is the continuous and unsustainable production and consumption of plastics, which has resulted in extensive pollution of freshwater and marine systems, while conventional waste treatment methods remain largely ineffective. The objective of this article is to provide a comprehensive scientific review of biotechnological approaches used to analyze and utilize aquatic bacteria for plastic degradation, focusing on molecular aspects and environmental applications. Using a literature review method, studies published between 2018 and 2024 were analyzed to evaluate effective bacterial models, technological challenges, and future prospects. The findings indicate that aquatic bacteria offer promising potential as biological tools for mitigating plastic pollution through sustainable environmental strategies.

Development in Banten Province has created conflict in development due to the dominance of a minimalist modern science approach, which prioritizes economic growth while ignoring environmental carrying capacity and socio-cultural values. As a result, Banten faces a serious environmental crisis, as evidenced by high emissions of air pollutants (PM2.5, SO2) and river water pollution by industrial waste. This study aims to analyze the negative impacts of this disorganized model and propose a comprehensive solution framework. This study formulates the Holistic Development Model (HDM). The HDM is a transformative solution that synergistically integrates three pillars: Modern Science (providing technology and data), the Ecosystem Approach (providing a systemic framework and nature-based solutions), and Local Cultural Values ​​(forming the basis of ethics and social motivation) through a Systematic Literature Review and Conceptual-Case Analysis. The implementation of MPH in case studies such as Integrated Coastal Management and Integrated Agriculture demonstrates that this integration produces high-yielding, equitable, and sustainable systems. In conclusion, MPH is a crucial strategy for Banten to shift from destructive development to equitable, resilient, and locally rooted development, making ecosystem health a key measure of success.

Café retrorika is one of the cafes located in Batu City, Malang, which adopts a green marketing concept with a unique aesthetic touch, combining the concepts of “Retro” and “Eco-friendly”, where almost all of the café’s furniture and decorations are made from recycled materials, such as old windows, used motorcycle tanks, gas cylinders and rims, which are transformed into high-art decorative elements. Awareness of the importance of sustainable business is growing, including in the culinary sector. Cafes and restaurants now compete not only in terms of taste and service but also in their commitment to environmentally friendly concepts. Moreover, today’s consumers are increasingly selective in choosing places to eat that support local products, use environmentally friendly materials, and strive to reduce plastic waste. This is one of the reasons for building cafes with different concepts, as done by the owner and founder of Retrorika café. This study uses a qualitative approach with a case study research type. Data collection techniques include participant observation, interviews and documentation. The result show that Retrorika café was built based on the personal idealism of its owner as a green movement activist, rather than market calculations. The café’s “Retro” identity serves as physical evidence of sustainability practice through the use of used furniture while also creating a nostalgic experience. Its marketing strategy focuses on education through the Re-dukaci program, Retrorika goes to Halokes and Sa-Si-Su as an effort to prove the authenticity of green practices and mitigate greenwashing. These results can be concluded that the founder’s passion shapes the Green Corporate Identity and becomes a source of sustainable competitive advantage that is difficult to imitate.

Air pollution is an increasingly serious environmental issue in major cities, including Serang City. The decline in air quality due to motor vehicle emissions, industrial activities, waste incineration, and the reduction of green open spaces harms public health and the environment. Polluted air can cause respiratory problems, reduce the quality of life, and threaten urban ecosystems. This study aims to analyze the level of knowledge, perceptions, and behaviors of Serang City residents regarding air pollution, as well as assess their support for air pollution control policies. The methods used include a mixed-method approach through questionnaires, in-depth interviews, and participatory observation. The results of the study show that the community has a good understanding of the sources of air pollution, particularly vehicle and industrial emissions. They are also aware of the impact of pollution on health, especially for children and the elderly. However, the implementation of protective behaviors such as wearing masks is not yet consistent. Some positive behaviors have begun to develop, such as not burning trash and planting plants at home. Support for pollution control policies is also high. This study emphasizes the importance of continuous education, law enforcement, and collaboration between the government, society, and environmental communities in efforts to mitigate air pollution in Serang City.  

The increasing snack consumption trend in Indonesia, along with the availability of processed snacks that are high in sugar, fat, and sodium but low in fiber, poses a significant challenge to digestive health. More than 40% of the global population experiences digestive disorders, often related to unhealthy eating patterns and low fiber intake. In response to this issue, an innovative healthy snack called TaroStik, made from taro vines (Colocasia esculenta) rich in fiber and nutrients, has been developed. This product comes in two forms, sticks and chips, with three flavor variants (salty, sweet, and spicy), offering a healthy snacking experience without sacrificing taste. Training on utilizing taro vines to create TaroStik was conducted in Banjarbaru, involving prospective entrepreneurs with a combined approach of theory, hands-on practice, and group discussions. Participants were trained from material selection, processing (peeling, soaking, steaming, frying), packaging, to social media marketing simulation. As a result, most participants were able to independently produce TaroStik, with some expressing intentions to continue production at a home scale. TaroStik not only provides a digestive health solution through natural snacks free of preservatives but also brings positive impacts in three areas: economy (creating business opportunities based on local ingredients), environment (reducing agricultural waste), and nutrition (increasing healthy food consumption). This innovation embodies the principles of green economy and sustainable entrepreneurship, opening new business opportunities and improving community welfare.