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The waste problem in Indonesia has now reached a critical stage and has become an increasingly serious environmental issue. The ever-increasing volume of waste is not being managed effectively, leading to various negative impacts, particularly environmental pollution. This study aims to examine the state of waste management in Indonesia and its impact on water pollution from the perspective of the Sustainable Development Goals (SDGs). The method used is descriptive qualitative research through a literature review utilizing various sources such as journals, official reports, and legislation. The results indicate that the majority of waste originates from household activities, while management practices remain rudimentary, such as the “collect-transport-dispose” method and open dumping. This situation leads to waste accumulation, which contributes to water pollution, deteriorating environmental quality, and increased health risks for the community. Furthermore, suboptimal waste management also poses a challenge in achieving sustainable development goals, particularly regarding responsible consumption and access to clean water and sanitation. Therefore, improved efforts are needed through the application of the reduce, reuse, recycle (3R) principles, increased public awareness, and the active role of the government and the private sector in providing a sustainable waste management system. With the right measures, it is hoped that the waste problem in Indonesia can be reduced and the environment preserved.

The problem of household waste in Kalanganyar Village, Sedati District, Sidoarjo Regency, is increasing along with population growth, while residents' knowledge about waste sorting is still minimal and processing facilities are limited. This community service program aims to increase awareness and cleanliving behavior through education and mentoring on household waste processing based on the 3R concept (Reduce, Reuse, Recycle). This activity adopts an Asset-Based Community Development (ABCD) approach that focuses on mapping and utilizing local potential, such as health cadres, youth organizations, the spirit of mutual cooperation, and the availability of potential land. The implementation methods include appreciative inquiry, focus group discussions (FGDs), in-depth interviews with the Head of the Sopo Nyongko TPS and community leaders, participatory observation, and practical mentoring for housewives, youth organizations, and TPS managers on February 9. The results of the activity showed an increase in residents' understanding of PHBS and waste management, indicated by the enthusiasm of participants during the educational session. The program also successfully activated local agents of change: youth groups began implementing inorganic waste recycling, and health cadres designed a home-based waste sorting system.

Plastic waste has become one of the main environmental problems due to its nature, which is difficult to decompose naturally and can cause environmental pollution. One alternative waste treatment method that can be applied is to use a plastic melter to melt and recycle plastic waste into useful products. However, the design of plastic melters often lacks consideration of structural strength and safety aspects during the operation process. This study aims to design and engineer a plastic melter using the Finite Element Analysis (FEA) simulation approach to analyze structural resistance to thermal and mechanical loads that occur during the operation process. The research method was carried out through 3D design modeling of plastic melter components using Solidworks software, followed by analysis with FEA simulation on the main component, namely the melting tube. The parameters analyzed include the distribution of von Mises stress, the amount of displacement, and the safety factor. The analysis results show that the analyzed components experience von Mises stress distribution and displacement that are still below the material tolerance limits, with safety factor values above the recommended safety limits. Thus, the resulting plastic melter design is declared safe and can proceed to the manufacturing process. Therefore, the plastic melter design is safe, strong, and feasible to be realized as an effective and sustainable plastic waste processing technology solution.

This community service activity aims to improve street cleanliness and encourage the use of home gardens to support a clean, healthy, and sustainable environment. The main problems faced by the community include low awareness of environmental cleanliness, the persistence of trash along the roads, and underutilized yards. The activity implemented a qualitative approach through field observations, community interviews, outreach, and direct mentoring. The community service activities included the Clean Friday program, the construction of neighborhood gates, the creation of flower pots from recycled materials, and the use of home gardens for vegetable cultivation. The results of the activities showed a significant improvement in street cleanliness, increased use of home gardens as productive spaces, and growing awareness and active participation of the community, particularly the younger generation, in environmental protection. Furthermore, this activity also strengthened the values of mutual cooperation and local wisdom, which align with the Tana Toraja Masero concept of clean, healthy, independent, and sustainable development. Thus, this community service activity contributes positively to creating a sustainable environment and improving the community's quality of life in a sustainable manner

Social and environmental responsibility as part of business ethics. Corporate Social Responsibility (CSR) is an important strategy in building and maintaining a company's image in the public eye. This study aims to analyze how the CSR strategy implemented by PT. Kompas Gramedia through the Kampung Koran program maintains the company's image. This study uses a descriptive qualitative approach. Data collection techniques were carried out through in-depth interviews and documentation. The theory used is the CSR strategy from Coombs and Holladay which includes five stages: scanning, conducting, creating, communicating, and evaluating. In addition, the image formation theory from John M. Tiedemann was also used to analyze the process of forming a company's image. The results show that the Kampung Koran Program of PT. Kompas Gramedia demonstrates a planned and participatory CSR strategy. Through scanning and monitoring as well as conducting formative initiatives, the company is able to map community needs and design programs based on local potential. At the create CSR stage, the focus is directed at empowering housewives with skills in processing used newspapers, then strengthened through communicate CSR with communicative narrative techniques that touch public emotions, and is periodically evaluated at the evaluation stage to maintain relevance and sustainability. This process contributes directly to the formation of the company's image. Starting with a creative idea to recycle newspapers, a positive perception emerged that the program brings tangible benefits.

This community service program aims to enhance public awareness and skills in managing household waste through an innovative recycling-based approach. The main problems identified in the target community include limited understanding of waste segregation, lack of knowledge regarding the economic potential of household waste, and insufficient skills to transform waste materials into useful products. To address these issues, the program was implemented through several stages, including an initial survey to identify community needs, environmental education and awareness sessions, hands-on training on producing recycled products, and continuous mentoring to ensure the sustainability of the activities.The results show a significant increase in participants’ knowledge of proper waste management and recycling concepts. Moreover, the community successfully produced various creative and functional recycled items such as plant pots, household crafts, and other aesthetically valuable products with economic potential. The program also facilitated the establishment of a resident group committed to continuing the initiative independently. Overall, this community service activity demonstrates that practical environmental education can effectively foster ecological awareness, strengthen community participation, and create opportunities for local economic empowerment through the utilization of household waste.

Waste from used Polypropylene (PP) and High Impact Polystyrene (HIPS) plastic is problematic in its management. The purpose of this research is to obtain the fatigue life of a mixture of used PP and HIPS plastics in its pure plastic. The research method is through the stages of mixing pure PP and 50% volume of used PP, pure HIPS and 50% volume of used HIPS, injection molding of R.R. Moore standard fatigue test specimens for pure PP, pure HIPS, pure PP + used PP, and pure HIPS + used HIPS, checking the straightness and smoothness of the molded specimen surface, fatigue testing with increasing serial loads, analysis of the bending stress curve (S) against fatigue life (N). The results showed that mixing used PP and used HIPS in pure plastic affected the fatigue life at the test speed (n)=2100 rpm for recycled PP was 9.84% shorter than pure PP, and at n=1600 rpm for recycled PP it was 9.32% shorter than pure PP, while at n=2100 rpm for recycled HIPS it was 4.45% shorter than pure HIPS, and at n=1600 rpm for recycled HIPS is 4.77% shorter than pure HIPS, while the fatigue life of pure PP is 1627704 cycles and the fatigue life of pure HIPS is 1291636 cycles or the fatigue life of pure HIPS is 20.65% shorter than pure PP, the implication of which is that the addition of used PP and used HIPS reduces the fatigue life to 9.84% for PP and 4.45% for HIPS.

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.

Early childhood education plays a crucial role in building the foundation for children’s cognitive, social, emotional, and creative development. Creativity is an essential aspect that must be stimulated through meaningful and contextual play activities. This study aims to describe the process and outcomes of developing children’s creativity through the implementation of loose part play with the theme “School Environment” at TK Tunas Karya III Sukanagara. The research employed a descriptive qualitative approach involving 64 children from group A and group B, along with their accompanying teachers. Data were collected through participatory observation, semi-structured interviews, and documentation of the children’s creative works during the activities. The results reveal that loose part play effectively enhances children’s creativity. The children demonstrated improvements in divergent thinking, imagination, and self-confidence. Moreover, they became more environmentally aware, utilized recycled materials to create new objects, and exhibited collaboration and responsibility in group activities. Teachers played an essential role as facilitators who provided support and guidance throughout the exploration process. The loose part approach aligns with the principles of the Merdeka Curriculum, which emphasizes active, participatory, and experience-based learning for young children. This study provides practical implications for early childhood educators to design creative learning experiences that are low-cost, environmentally friendly, and relevant to the children’s real-life context.

This study explores the practice of participatory communication and creative production implemented by the Anggrek Waste Bank along the Ciliwung River as an educational strategy for flood disaster mitigation. The research aims to understand how community-based waste management initiatives can serve as platforms for environmental learning and social empowerment. Using a qualitative approach with a case study method, this study investigates social dynamics, interaction patterns, and meanings constructed by residents through collaborative waste management and creative production activities. Data were collected through observation, in-depth interviews, and documentation. The findings reveal that participatory communication is manifested not only in formal education, counseling, or campaigns, but also in everyday interactions, creative workshops, and collective community work. Creative products such as recycled crafts, soap made from used cooking oil, and eco enzymes function as symbolic communication media that persuasively convey ecological messages while providing tangible economic benefits. These practices foster a sense of ecological responsibility, strengthen social solidarity, and enhance community resilience to flooding. This study concludes that participatory communication integrated with creative production serves as an effective model for promoting sustainable behavior and community-based flood mitigation in urban environments.

This Community Service Programme was implemented to address the issues faced by Bank Sampah Anggrek's partners in Bendogerit Village, Blitar City. The main problems faced by the partners included limited variety of recycled products, simple waste processing techniques, and ineffective marketing strategies. Activities include socialisation, strengthening local partnerships, recycling training, and digital marketing assistance. As a result, members of the Waste Bank were able to create three new products: plant pots made from orange peels, carnival costumes made from fabric and plastic waste, and ecobrick furniture, and establish collaborations with two local businesses. The constraints of the Community Service Programme activities included limited production facilities, inconsistent participant attendance, low digital literacy, and competition with traditional waste collectors. This programme demonstrates that a waste bank-based sociopreneurship model can have economic, social, and environmental impacts while supporting sustainable waste management strategies. The programme was also successful due to its participatory approach, which actively involved Anggrek Waste Bank members in every step. Participants not only gained new information, but also acquired practical skills that can be used in the processing and marketing of recycled goods. This community service programme greatly helps to raise awareness of the importance of community-based circular economy. While reducing negative impacts on the environment, the sociopreneurship model can boost the community's economy. Bank Sampah Anggrek has the potential to develop into a centre for sustainable waste management innovation at the neighbourhood level by strengthening local capacity and opening up opportunities for cross-sector collaboration.

Population growth and lifestyle changes in Indonesia have led to complex waste management issues, negatively impacting social, health, and environmental sustainability aspects. To address this, a sustainable management approach that actively involves community participation is necessary. The concept of a Waste Bank, based on the 3R principles (Reduce, Reuse, Recycle), emerges as a strategic, community-based solution. This community service program aims to encourage active community participation in the Waste Bank program in Tanjung Uban Selatan, Bintan Regency, while supporting the realization of a Smart City based on intelligent and participatory environments. The methodology used is a qualitative approach to gain in-depth understanding. Primary data collection was carried out through interviews, participatory observations, and documentation studies. Key informants were purposively selected from various stakeholders, including Waste Bank administrators, local government representatives, and community members. The results show that, although initially challenging to increase community participation, the program has had a significant positive impact. It successfully shifted the community's view of waste as a valuable economic resource. Quantitatively, this is reflected in stable income from the sale of high-quality inorganic waste, such as metals and electronic waste. The program also led to strategic innovations, including sustainable education, waste savings incentives, social media use, and the "Dasi Umat" empowerment program. The success of this program, strengthened by awards at the district and national levels, makes it a model for sustainable waste management focused on community empowerment and supporting smart city development.

The problem of waste in rural areas is still a serious issue that has an impact on environmental health and the quality of life of the community. Batu Licin Village, Gunung Lengkuas Village, East Bintan District, Bintan Regency is one of the areas that faces similar problems, where household waste is still scattered and has not been handled optimally. This community service activity offers innovative solutions through the manufacture of rocket stoves as a means of efficiently burning certain organic and inorganic waste, as well as the construction of garbage booths as a place to store and sort waste before further processing. The implementation method involves counseling to residents, making prototypes, and direct practice of using rocket stoves and garbage booths by local communities. In addition, this activity also emphasizes the importance of changing community behavior in managing waste with the 3R (reduce, reuse, recycle) principle. The results of the activity show an increase in public awareness in managing waste independently, reducing the accumulation of waste in the village environment, and the emergence of alternative waste processing that is environmentally friendly, energy-efficient, and easy to apply. This innovation not only helps overcome the problem of household waste, but also provides educational value and empowers the community in maintaining the cleanliness and sustainability of the village environment. With the implementation of rocket stoves and garbage booths, it is hoped that a cleaner, healthier, and more viable village environment will be created in the long term.

Concrete roof tiles are an important material in building construction, particularly for roofing work, due to their advantages in terms of strength, durability, and material availability. This study aims to analyze two main physical characteristics of concrete roof tiles, namely bending load and water absorption, using a literature review approach from various previous studies. Bending load refers to the material's ability to withstand bending forces, while water absorption describes the material's capacity to absorb and store water through its pores. These two properties significantly influence the quality and durability of roof tiles in facing external environmental conditions, especially wet-dry cycles and mechanical loads. The results of the literature review indicate that the use of waste as an aggregate substitute in concrete mixes can significantly improve the performance of concrete roof tiles. For example, research using broken roof tiles and ceramic waste as aggregate substitutes successfully increased flexural strength to a range of 12.5–15.0 MPa. Meanwhile, variations in water absorption were recorded in the range of 4%–8%, depending on the material composition and production method. This proves that the use of recycled materials not only supports sustainability but also improves the mechanical and physical properties of concrete roof tiles. Overall, this study underscores the importance of material innovation in concrete roof tile production, particularly utilizing waste as an alternative aggregate. However, further research is needed to explore the best combination of materials and production techniques for producing high-quality, efficient, and environmentally friendly concrete roof tiles.

This community service program was implemented to address the needs of farmers in Kalicaah Village, Tanjung Jaya Village, Panimbang District, for an affordable, simple, and user-friendly fertilizing tool. Traditionally, the application of solid fertilizer has been done manually, which not only leads to inefficiency but also significantly increases the physical workload of farmers. To overcome this issue, the program team designed a solid fertilizer spreader using appropriate technology, constructed from recycled materials such as PVC pipes and used water gallons. This innovation was aimed at creating a sustainable, low-cost solution for the local agricultural community. The program’s implementation involved several key activities, including identifying the farmers' challenges, conducting assembly training sessions, demonstrating the tool’s use, and running direct field trials in local farms. The results showed that the use of the newly developed fertilizer spreader led to a 45% reduction in the time spent applying fertilizer, which directly contributed to more efficient farming practices. Additionally, there was a significant reduction in physical complaints, particularly lower back pain, which had been a common issue due to the manual labor involved in fertilizing. The tool proved to be easy to construct, requiring minimal technical knowledge, and the farmers were able to adopt the technology independently. The high rate of adoption among farmers further emphasizes the tool’s potential for widespread use. The success of this program also suggests that this simple, affordable technology could be replicated in other agricultural regions, benefiting more communities by improving work efficiency, reducing physical strain, and fostering a sustainable approach to farming practices.

This research aims to explore the potential of paper waste as a recycled material that can be transformed into economically valuable products through a philanthropic approach focused on community empowerment and environmental sustainability. Paper waste is a type of waste whose volume continues to increase due to high paper consumption in various sectors. Without proper management, this waste has the potential to negatively impact the environment, such as soil and water pollution. Therefore, innovative strategies are needed to transform paper waste into new products that are not only environmentally friendly but also have market value. Through a community-based recycling program, this research emphasizes the importance of community involvement, particularly low-income groups, in every stage of the production process. The resulting creative products, such as handicrafts, decorative materials, and household items, not only extend the life cycle of paper but also open up new economic opportunities for the community. Profits from the sale of these products are allocated to fund social programs, including education, skills training, and other empowerment activities aimed at improving community well-being. The research results show that despite challenges in terms of limited technology, market access, and human resource capacity, paper recycling programs still have promising prospects if supported by various parties, including the government, non-governmental organizations, and the private sector. This support can include the provision of simple technology, entrepreneurship training, and effective marketing strategies. Thus, this paper recycling initiative is not only a solution to reduce waste but also a sustainable socio-economic empowerment model, providing dual benefits for the environment and society.

Contemporary art continues to expand its definition, blurring the boundaries between functional objects and fine art. This practice-based research explores the potential of recycled materials in visual art creation, using a tricycle as the primary medium. Using a mixed-media approach, primarily utilizing recycled metal and plate, along with recycled components such as drills and old water pumps, this project aims to transform the tricycle from a mobility object into a work of fine art. This concept intentionally blurs functional aesthetics, emphasizing freedom of expression and uniqueness of form, and reflecting a dialogue between the past and the present through recycled materials. Through a case study of the work "The Bully," this paper explores how a writer's personal trauma can be sublimated into a powerful artistic expression, forming a visual narrative of power, intimidation, and artistic revenge. This research also adopts an Artistic Research methodology to examine the creative process holistically.

Plastic waste, particularly High-Density Polyethylene (HDPE), poses a serious threat to the environment due to its extremely long decomposition time. One effective recycling method is the extrusion process, in which process parameters such as nozzle diameter and heating temperature significantly affect the production rate and the quality of the resulting filament. This study aims to analyze the effect of nozzle diameter and heating temperature on the production rate and diameter uniformity of recycled HDPE plastic filament. The method used is an experimental approach with a quantitative design, utilizing a single-screw type extruder machine. The tested parameter variations include two nozzle diameters (1.75 mm and 2.85 mm) and three temperature levels (200°C, 240°C, and 280°C). The results of the analysis, using factorial ANOVA and control charts, show that both parameters significantly influence production performance. The highest production rate, approximately ±1.0 kg/hour, was achieved with the 2.85 mm nozzle and 280°C temperature combination, while the combination of the 1.75 mm nozzle and 200°C temperature produced the most consistent filament diameter and the best quality, with a resulting diameter of 2.84 mm, which is very close to the target of 2.85 mm. Higher temperatures increase flow rate due to decreased viscosity, but also carry the risk of thermal degradation. This study provides practical guidelines for optimizing the HDPE recycling process through extrusion.

Surya Indo Plastic is a pioneer company that provides exceptional quality recycled plastic food packaging for the food and beverage industry. Established in 2006 in Indonesia. The company wants to make a positive impact and contribute to protecting the environment by offering food packaging that contains 100 percent recycled plastic, which meets the highest quality and performance standards. The company works hard to accelerate the recycling of its products. Because every cup, every lid must make a difference. PT. Surya Indo Plastic is an example that packaging can be made sustainably, to prevent plastic waste from entering our environment. By raising awareness, supporting the circular economy, and encouraging individuals and companies to recycle. SIP's ambition is to provide the best quality food packaging made from sustainable recycled plastic materials while providing the best customer service. PT Surya Indo Plastic's goal is to make a difference in food packaging through innovation, responsibility, and collaboration. The purpose of this study was to determine the effect of authentic leadership, organizational identity and employee engagement on job satisfaction and company performance at PT. Surya Indo Plastic in Sidoarjo. This study uses a quantitative method with primary data sources obtained from distributing questionnaires. The population of the study were employees of PT. Surya Indo Plastic in Sidoarjo. The selection of respondents was carried out using the saturated non-probability sampling method with a total of 208 respondents. The data analysis method used descriptive analysis and SEM-PLS analysis. The results showed that the variables of authentic leadership, organizational identity and employee engagement influenced job satisfaction and company performance of PT. Surya Indo Plastic in Sidoarjo.

Plastic waste is currently still a serious problem for society due to the lack of sensitivity to environmental problems and the impact of careless disposal of plastic waste in many places. The injection molding process on industry scale often faces obstacles such as machines that have not worked efficiently, injection capacity that is unable to fill the mold completely, and the emergence of product defects due to plastic flow that begins to freeze before the entire cavity is completely filled. This study aims to design and simulate a prototype injection molding machine with a capacity of 4 tensile test specimens (total volume 28.5 cm³) in order to overcome these problems and to adjust the practicum needs of mechanical engineering students. The design process is carried out with SolidWorks software for 3D design, as well as flow simulation using SolidWorks Plastics and Flow Simulation with recycled Polypropylene (PP) material at melting temperature ± 230 ° C and injection pressure ± 5.3 MPa. The design results in a machine with dimensions of 1273 × 400 × 826 mm equipped with main components in the form of a frame, electric motor and gearbox, hopper, body safety, wheels, piston cylinder, control panel, heater, screw with barrel, and mold. SolidWorks Plastics simulation shows that the plastic flow fills the mold evenly with a filling time of 10.93 seconds, cycle time of 83.94 seconds, and maximum pressure of 5.38 MPa in the gate area, while Flow Simulation simulation shows a spiral flow pattern from the hopper to the end of the mold without backflow, with a mass flow rate of 0.0227 kg/sec and an average pressure of 97.765 Pa. These results prove that the design and simulation can improve process efficiency and mold quality