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This study evaluates the investment feasibility of UD Al-Mustofa, a tobacco business in Kendal, by considering aspects of production, storage capacity, waste management, and market expansion opportunities. UD Al-Mustofa is strategically located, ensuring high mobility, optimal production scale, and an effective waste management system, which includes recycling solid waste into organic fertilizer, processing liquid waste, and mitigating gas emissions by conducting tobacco drying in areas far from residential zones. Although the business has not yet obtained certification for international markets, financial analysis indicates that investment in this venture is viable. The calculations show a payback period of 2.01 years, significantly shorter than the projected 10-year investment lifespan. The Net Present Value (NPV) reaches IDR 489,345,567, indicating positive returns, with a profitability index of 0.854. The Internal Rate of Return (IRR) of 46% significantly exceeds Bank Indonesia’s interest rate of 5.75% in 2024, while the Average Rate of Return (ARR) of 78.8% is higher than the cost of capital. Based on these findings, UD Al-Mustofa has strong potential for further development, both in terms of production and market expansion..

Organic waste management has become an urgent global issue, as the increasing volume of waste poses serious challenges to the environment. One innovative solution that is gaining increasing attention is Maggot cultivation, through a bioconversion process. Maggot bioconversion not only addresses the problem of organic waste but also offers new economic opportunities through the production of high-value resources. In addition, maggot cultivation can also contribute to addressing the high price of protein sources and the increasing demand for animal feed. As highlighted by a study, maggot bioconversion technology can address three main problems: the generation of organic waste, the high price of protein sources, and the increasing demand for animal feed. (Handayani et al., 2021). Maggot (Hermetia Illucens) is a black soldier fly larva that has a chewy texture, high protein and has the ability to secrete natural enzymes that help improve the digestive system of livestock.

This study aims to examine the role of housewives in waste reduction through the implementation of 3R (Reduce, Reuse, Recycle) principles, serving as a means to influence waste management behaviors and foster the adoption of a community-driven circular economy. This approach is designed to involve the broader business environment and city government. The research employs a descriptive qualitative method, focusing on the collection of data and information without reliance on quantitative calculations.The findings highlight that the participation of housewives plays a significant role in engaging individuals and groups in waste management activities. The study underscores the importance of community involvement in providing suggestions, expressing opinions, and actively participating in waste management initiatives. The research emphasizes that housewives play a critical role in waste collection, aligning with the principles of 3R. This role contributes to fostering clean and healthy living behaviors within communities, reinforcing the essential contribution of housewives in achieving sustainable waste management practices.

This study evaluates the effectiveness of a hybrid citizen–AI legal monitoring system in enhancing urban environmental governance. The hybrid system integrates citizen-driven reporting platforms with AI-powered legal monitoring tools to address the challenges of weak public oversight in urban environmental management. By implementing the system in three metropolitan areas, the study explores how real-time data collection through citizen reports, combined with AI-driven analysis, can improve the accuracy, speed, and responsiveness of identifying environmental violations. The results showed a 45% improvement in oversight effectiveness, demonstrating the potential of hybrid systems to enhance monitoring capabilities beyond traditional methods. The AI system, capable of analyzing large datasets and providing timely insights, enabled quicker identification and categorization of violations such as pollution and waste management issues. The integration of citizen involvement through digital platforms allowed for more inclusive data collection, enhancing the quality and volume of information available for decision-making. This synergy between human participation and AI-driven analysis improved the speed of response to urban environmental challenges, making the system more adaptive and efficient. However, challenges such as data reliability and variable citizen participation rates were identified, suggesting the need for strategies to encourage consistent engagement and ensure the accuracy of reported data. The study concludes that hybrid citizen–AI systems can significantly improve urban governance by enhancing transparency, accountability, and responsiveness, offering a promising solution for cities seeking to address environmental issues more effectively.

This study aims to analyze waste management in Indonesia from 2001 to 2022, and identify challenges and solutions that can be implemented to improve the effectiveness of waste management. Waste is a major problem affecting the environment and public health, with around 34.29% of waste in Indonesia not being managed properly. This research uses a descriptive approach by analyzing data related to policies, infrastructure, and community participation in waste management. The results showed that although there are regulations governing waste management, the main challenges faced are low public awareness and limited waste management infrastructure in many regions. The research also found that collaboration between the government, communities and the private sector is crucial in creating sustainable solutions. In addition, the development of environmentally friendly waste management technologies, such as Waste Power Plants (PLTSa), can be an innovative solution to reduce the negative impact of waste on the environment. This research suggests the need to strengthen regulations, increase public awareness, and develop more efficient and environmentally friendly waste management technologies.

A collection of shoes that are not neatly arranged often makes you lazy to tidy up and clean them, whereas the condition of scattered shoes can spoil the view and reduce the durability and functionality of the shoes themselves. On the other hand, plastic waste, especially plastic bottles, is increasing and becoming a serious problem for the environment. In an effort to reduce the impact of pollution and utilize unused items, this study proposes a solution in the form of making a shoe rack from used plastic bottle waste. The use of plastic bottles not only reduces the amount of waste but also provides a practical solution for more organized shoe storage, especially for students who need efficient and environmentally friendly shoe storage space. The method used in this study is (R&D), which aims to develop a shoe rack product and test its effectiveness and feasibility. The test results show that this shoe rack can accommodate 12 pairs of shoes with a maximum strength of 5.5 kg per rack consisting of three levels. The use of 69 plastic bottles for the base and 24 bottles for the walls provides a large enough capacity to store shoes. Based on the test results, this shoe rack not only functions as a place to store shoes, but also as an effort to reduce plastic waste and support environmental sustainability. This product can also be used as an example in learning product design, recycling, and entrepreneurship.

To find out  the beef cattle business in Perbaungan sub-district is potentially profitable from a financial, social and environmental perspective. Primary data were collected through interviews with farmers and secondary data from relevant agencies. Descriptive-analytical method was used. Benefit-Cost Ratio (BCR), Net Present Value (NPV), and Internal Rate of Return (IRR) were used to assess business feasibility. The results showed that the beef cattle business is financially viable with a BCR value of 1.35, NPV of 25,000,000, and IRR of 18 per cent. In addition, the business has a positive impact on income generation, job creation, and farmer welfare. But there are some problems, such as changes in feed prices and cattle waste management. Even if feed prices and cattle selling prices change significantly, the business is still viable, according to the sensitivity analysis. To make the business more sustainable, the government should help through training programmes, feed subsidies and access to finance. Beef cattle enterprises have great potential to grow and have a positive impact on both the environment and the community if managed properly.

This research aims to create a clean and beautiful environment in Hutanamora Village through gotong royong activities, which increase the value of togetherness and care for the environment. The research used a participatory approach that actively involved the village community in the planning, implementation and evaluation of events. Environmental cleaning, waste management, and greening of the village's strategic areas were the focus of the gotong royong program. The results showed that gotong royong not only improved the cleanliness and beauty of the environment but also increased the sense of unity and cooperation among residents. In addition, the community is increasingly aware of the importance of protecting the environment. So, gotong royong is a great solution to make the environment clean and beautiful. It also builds the character of a community that cares and is responsible for environmental sustainability.

The issue of plastic waste in Indonesia has reached a critical level, with an annual production of 64 million tons. To address this challenge, an educational approach that integrates practical and meaningful aspects, especially for the younger generation, is necessary. This study implements Project-Based Learning (PjBL) with an upcycling approach to enhance students' environmental awareness, creativity, and entrepreneurial spirit. The methods used include socialization and hands-on practice, where students are encouraged to create economically valuable products from plastic and paper waste. This activity involved 36 teenagers divided into groups to produce upcycled products such as plant pots and pencil holders. The results of this project indicate an increase in students' awareness and skills in waste management, as well as the creation of upcycled products with market value. This study further confirms that project-based learning can positively impact environmental and entrepreneurial education in schools, aligning with the goal of nurturing a generation that is both environmentally conscious and economically self-sufficient.

This community service aims to optimize bank management in Mengwi Village, Mengwi Regency in an effort to increase efficiency, effectiveness and positive impacts from the existence of waste banks in waste management, which steps will provide efforts for community empowerment and participation. The implementation method used in this service is training, mentoring and evaluation by delivering material directly to the Waste Bank manager in Mengwi Village which is also used as an object of service.The problem faced during the survey was how to raise awareness and involvement of the community to take an active role in the waste bank program. It is hoped that this training and mentoring activity will provide management with education and understanding to the community so that they can work together to maximize the contribution of the waste bank in an effort to manage waste from origin using the 3 R (Reduce, Reuse, Recycle), which ultimately aims to reduce the volume of waste entering the waste bank. landfill, increasing environmental awareness and impacting community welfare. The response from the Mengwi Village Waste Bank management to this activity was very good and positive, this can be seen from the management's willingness to participate in the activity from start to finish. From the evaluation activities carried out on waste bank managers, it can be said that managers understand the material regarding the importance of providing understanding to the community to participate in developing waste banks. Where in their involvement, the community not only gets a healthy environment, but from an economic perspective, the community also gets benefits by having savings on tires. The savings can later be exchanged for basic necessities such as rice, sugar and coffee.

Environmental degradation caused by excessive exploitation and natural damage has become increasingly concerning in the modern era. To address this issue, madrasahs, as Islamic educational institutions, play a crucial role in instilling environmental conservation values based on the teachings of the Qur'an and Hadith. This study aims to explore the Qur'an and Hadith-based educational approach implemented at Madrasah Ibtidaiyah Ihyaul Islam Pakuniran in fostering students' awareness of their responsibilities toward environmental conservation. The study employs a qualitative method with a descriptive approach, aiming to deeply understand the teaching processes and the application of environmental education. Data were collected through interviews with the headmaster, teachers, and students, complemented by classroom observations and analysis of curriculum documents and teaching materials. Data validity was strengthened using triangulation to ensure the accuracy and reliability of the findings. The results show that integrating the teachings of the Qur'an and Hadith, such as the concept of maintaining environmental balance (mizan) and the prohibition of environmental destruction (fasad), successfully enhanced students' awareness of the importance of environmental preservation. Activities such as tree planting and waste management, in which students actively participate, reinforced their sense of responsibility toward environmental sustainability. This study concludes that the Qur'an and Hadith-based educational approach holds significant potential in shaping environmentally conscious generations capable of fulfilling their role as guardians of nature in accordance with Islamic teachings.

The "Kampus Mengajar" program at SMPN 2 Merawang is implemented by students from the University of Bangka Belitung to raise awareness and enhance students' skills in plastic waste management. Through an educational and collaborative approach, this program encourages students to better understand the impact of plastic on the environment. The main activities include socialization on plastic waste management, the creation of eco-bricks, and participation in co-curricular activities such as an exhibition of student works. The results of the program show an increase in environmental awareness among students, as well as the development of proactive attitudes towards maintaining the cleanliness of the school environment.

Household waste management in urban areas is a complex environmental challenge due to the increasing volume of waste each year. Poorly managed waste has the potential to cause environmental issues, such as water, soil, and air pollution, as well as health impacts on the community. This Community Service Program (PKM) aims to provide training in processing household waste into economically valuable products for urban communities in Baguala District, Ambon City. The training activities encompass various stages, from education on waste sorting, techniques for processing organic waste into compost, to processing inorganic waste into crafts and recycled products with market value. Through this training, it is hoped that the community will understand the importance of sustainable waste management and be able to utilize household waste as an additional source of income. The results of the activities show that participants are able to process household waste into economically valuable products, such as compost and recycled crafts. This program not only contributes to reducing urban waste but also supports community economic empowerment through a circular economy approach.

Indonesia's cigarette industry has experienced significant growth, contributing substantially to economic development and work opportunities. However, the production process generates wastewater containing pollutants like BOD, COD, TSS, NH3-N, phenol, and pH imbalances, which pose environmental risks. This study aims to evaluate the quality of wastewater from the cigarette industry and analyze the treatment technologies used to meet environmental standards. Using qualitative methods and secondary data from relevant industries, the research shows that cigarette industry wastewater is highly polluted and requires multiple treatment stages before being discharged into surface water. Key technologies include collecting tanks, equalization tanks, coagulation-flocculation, clarifiers, and trickling filters. The findings provide valuable insights into waste management challenges and propose solutions to support environmental sustainability in the cigarette industry.

This study evaluates the effectiveness of using infographics in conveying environmental issues, such as waste management and climate change. Quantitative methods were used to measure the level of public understanding before and after exposure to infographics. The findings show that attractive and simple data visualization significantly increases public knowledge and awareness of the importance of environmental conservation.

This research focuses on the development of automatic waste classification by applying the Convolutional Neural Network (CNN) method in a web-based application. This system is designed to help the waste management process through automatic sorting between organic and inorganic waste, so that it can support recycling efforts and reduce environmental impacts. In its application, this application utilizes the CNN algorithm to analyze images and recognize the type of waste with good accuracy. The development uses technologies such as Python and OpenCV to ensure efficient processing of image data, with the CNN model trained using a dataset of 22,564 images. Test results show excellent accuracy, reaching 99.27% for organic waste and 98.72% for inorganic waste.

Waste is leftover material that is considered to have no economic value, but its existence cannot be avoided in people's social life. In Karanglangon Hamlet, the increase in population that occurs every year increases the volume of waste produced. As the population increases, household waste production and other activities also increase, thereby exacerbating waste management problems in the region. If not managed properly, the increasing amount of waste can have various negative impacts, both on public health and the surrounding environment, such as air, land and water pollution. This problem demands more attention from various parties to find appropriate and sustainable solutions. This research aims to identify in more depth the problems related to waste management at the Dusun Karanglangon TPS using the PAR (Participatory Action Research) approach method. The research results revealed that the condition of the waste at the TPS had a significant negative impact on the surrounding environment. The main causes are limited facilities, minimal budgets, and inadequate waste management standards, resulting in the accumulation of waste and increasingly severe environmental pollution.

The increase in population without the support of adequate waste management facilities, such as the availability of Temporary Shelters (TPS), has caused the people of Blitar Regency to have the habit of throwing rubbish carelessly in rivers or the habit of burning rubbish. This can cause various negative impacts on the environment and health. This research highlights the importance of the "Bacem Berseri" Waste Bank program to create public awareness in managing waste in a healthier and more sustainable way. The aim of this research is to analyze the implementation of collaborative governance in waste management in Bacem Village, Sutojayan District, Blitar Regency. The research method used was descriptive qualitative, data collection was carried out through in-depth interviews with stakeholders, including Environmental Service officials, village heads, administrators of the "Bacem Berseri" Waste Bank, and local residents. Data analysis techniques include data collection, data condensation, data presentation, and drawing conclusions. The results of this research show that collaboration between parties, including government, society, NGOs and the private sector, can increase the effectiveness of waste management through collaborative governance mechanisms. Key findings include the importance of face-to-face dialogue, facilitative leadership, commitment to process, and shared understanding in increasing community participation and building trust. The Waste Bank system implemented has had a positive impact in reducing waste accumulation and providing financial benefits for residents. However, the challenge lies in efforts to increase public awareness in all RTs to participate actively.

Fly density is an indicator of environmental sanitation assessment. Fly density is influenced by waste management, the National Waste Management Information System (SIPSN) shows that waste generation in Jambi City reaches 159,688.01 tons/year. The aim of this research is to determine factors related to the level of fly density in Temporary Waste Storage Sites (TPSS) in Telanaipura District, Jambi City 2023. This research is a quantitative research with a cross sectional method research design. This research was conducted in the Telanaipura District community with a sample of 94 people. Data analysis was carried out using univariate and bivariate methods using correlation tests. The results of this study indicate that knowledge (p=0.027), action (p=0.029), monitoring (p=0.017), sorting (p=0.016), collection (p=0.027), and transportation (p=0.026) have relationship with the level of fly density, while attitude (p=0.245) had no relationship with the level of fly density. Knowledge, action, monitoring, sorting, collection and transportation are factors related to the level of fly density in temporary waste storage sites in Telanaipura District. It is hoped that the public will pay attention to managing household waste properly.

This study examines community participation in chemical waste management in urban areas, aiming to understand the extent of community involvement in protecting the environment from the harmful impacts of hazardous waste. The introduction outlines the importance of managing chemical waste in densely populated urban areas and the risks arising from a lack of public awareness and knowledge. This research employs a qualitative approach, utilizing in-depth interviews, questionnaires, and direct observations. Interviews were conducted to explore community perspectives and motivations, questionnaires were used to assess their level of participation and understanding, and observations were carried out to examine real actions in waste management practices. The results indicate that community participation remains low, influenced by limited outreach, awareness, and support facilities. This study highlights the need for improved education, facility provision, and partnership programs between the government, community, and private sector for more effective and sustainable chemical waste management.