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This study aims to analyze the water quality of the Badung River based on Class II River water quality standards according to Government Regulation No. 22 of 2021, determine the water quality status, and calculate the potential pollution load of the Badung River. Water quality measurements were conducted at five sampling points. The parameters measured and observed include Temperature, Total Suspended Solids (TSS), pH, Biochemical Oxygen Demand (BOD), Chemical Oxygen Demand (COD), Dissolved Oxygen (DO), Sulfate (SO42), Nitrate (NO3), Total Phosphate (P), Oil & Grease, Total Detergent, and Total Coliform. Samples were analyzed in the laboratory for physical, chemical, and microbiological parameters. The water quality status of the Badung River was determined using the pollution index method, and the potential pollution load was calculated using the wastewater emission coefficient approach. The results showed that the water quality and status of the Badung River are classified as lightly polluted, with an average pollution index value of 3.65. The potential pollution load entering the Badung River in the domestic sector is 0.78 tons/day for BOD, 1.07 tons/day for COD, and 0.74 tons/day for TSS. Factors contributing to the lightly polluted water quality status include population density, poorly managed domestic activities (household waste), which contribute to high pollution parameter values such as BOD, COD, and TSS, and a lack of waste management infrastructure

The Ngudi Lestari Waste Bank program, located in Tinjomoyo Village, Banyumanik Subdistrict, Semarang City, is an innovative effort to address the increasingly pressing waste problem in urban environments. This waste bank serves as a center for waste collection, sorting, and processing, transforming waste into economically valuable resources and educating the community on the importance of recycling and waste management.This research used a qualitative approach with a case study method to evaluate the Ngudi Lestari Waste Bank initiative. Data were collected through observation, interviews, and documentation, then analyzed using triangulation techniques. The results indicate that Ngudi Lestari Waste Bank is effective in raising environmental awareness, changing community behavior patterns, and strengthening social solidarity. Support from the government is crucial in expanding and optimizing the program's impact. With various future development plans, this initiative is expected to become a sustainable waste management model and be adopted by other regions, as well as a concrete example for waste management solutions at the local level.

Training on processing liquid organic fertilizer from vegetable waste in Ngampel Wetan Village, Kendal, was conducted to increase community awareness and skills in utilizing household waste, especially vegetable waste, as a basic ingredient for making liquid organic fertilizer. This activity was motivated by the community's dependence on inorganic fertilizers in agriculture, so the potential of liquid organic fertilizer can be applied to farmers in Ngampel Wetan Village. With this training, the community is expected to be able to reduce dependence on chemical fertilizers by switching to organic fertilizers that are safer and more economical. The method used in processing vegetable waste as liquid organic fertilizer, observation, theory, product targets, implementation, and evaluation aims to solve problems in Ngampel Wetan Village, Ngampel District, Kendal Regency. It is hoped that with this training, the community of Ngampel Wetan Village can utilize vegetable waste into liquid organic  fertilizer and utilize it in agricultural activities so that liquid organic  fertilizer can overcome the problems of waste and limited fertilizer.   Pelatihan pengolahan pupuk organik cair dari limbah sayur di Desa Ngampel Wetan, Kendal, dilakukan guna  meningkatkan kesadaran dan keterampilan masyarakat dalam memanfaatkan limbah rumah tangga, khususnya limbah sayur, sebagai bahan dasar pembuatan pupuk organik cair. Kegiatan ini dilater belakangi oleh ketergantungan masyarakat terhadap penggunaan pupuk anorganik  dalam bidang pertanian, maka potensi pupuk organik cair dapat diaplikasikan ke para petani di Desa Ngampel Wetan.  Pelatihan pupuk organik cair kepada masyarakat diharapkan bisa  mengurangi ketergantungan pada pupuk kimia dengan beralih ke pupuk organik yang lebih aman dan ekonomis. Metode yang digunakan pengolahan limbah sayur sebagai pupuk organik cair yaitu observasi lapangan, teori, sasaran produk, pelaksanaan, dan evaluasi bertujuan untuk memberikan solusi atas permasalahan di Desa Ngampel Wetan Kecamatan Ngampel Kabupaten Kendal. Diharapkan, dengan adanya pelatihan ini, masyarakat Desa Ngampel Wetan   dapat memanfaatkan limbah sayuran menjadi pupuk organik cair dan memanfaatkannya dalam kegiatan pertanian, sehingga pupuk organic cair dapat mengatasi permasalahan sampah dan keterbatasan pupuk

B3 waste is the residue of a business activity that contains hazardous or toxic materials due to chemical concentrations, properties and amounts that are harmful to human health and can damage the environment if not managed properly. In Karawang Regency, it is alleged that there is a criminal act of disposing of hazardous and toxic waste (B3) without a permit so that it endangers human health and damages the environment. B3) Without a Permit in Purwakarta Regency The method used in this research is normative juridical with the nature of descriptive research and technical analysis of legal materials used is a qualitative analysis technique, meaning that the analysis does not depend on numbers based on numbers, but collects data from the previously mentioned legal materials, qualifying them, connecting them with the problems discussed, then draw conclusions from the research results. The results of the first study indicate that B3 waste (hazardous and toxic materials) is the residue of a business activity that contains hazardous or toxic materials due to chemical concentrations, properties and amounts that are harmful to human health and can damage the environment if not managed properly. Criminal Sanctions Against Perpetrators of Criminal Acts of Disposal of Hazardous and Toxic Materials (B3) Permit In Purwakarta Regency, in this case the PT Assa Peper case through court decision No. 55/PID.B/LH/2016/PN.PWK, the defendant AS as Director was sentenced to 10 (ten) months in prison and a fine of Rp. 100,000,000. provided that if the fine is not paid, it must be replaced with imprisonment for 2 (two) months.

This study investigates the implementation of ecobricks as a strategy to reduce plastic waste in Penjalin Village. The research focused on the effectiveness of educational workshops and community involvement in promoting sustainable waste management practices. Data was collected through surveys, interviews, workshops, and observations conducted over three months. The results showed that plastic waste is a significant issue in the village, with limited awareness of proper waste disposal methods. The introduction of ecobricks, coupled with community education, resulted in increased participation and a positive shift in attitudes towards environmental sustainability. The study also found that the success of the ecobrick initiative relies heavily on continued education and community engagement. The findings suggest that similar strategies could be effective in other rural areas facing similar challenges. This research contributes to the broader discourse on sustainable waste management and highlights the potential of ecobricks as a practical solution to plastic waste problems.

Plastic  waste is one of the largest environmental issues globally, including in Penjalin Village. This study explores the role of environmental education and the use of ecobricks as innovative solutions to tackle plastic waste in rural communities. The research employs qualitative methods, including in-depth interviews and participatory observation, to analyze the impact of education on community awareness regarding plastic waste management. The findings indicate that effective education can enhance residents’ understanding and participation in utilizing ecobricks as an alternative waste management approach. Additionally, ecobricks have proven to be a sustainable method, reducing the volume of plastic waste while providing additional benefits such as increased creativity and community self-reliance. Thus, the combination of environmental education and ecobrick implementation can serve as an effective model for addressing plastic waste problems in other villages across Indonesia.

The problem of plastic waste is a pressing global issue. In addition, the increase in plastic waste production encourages the search for sustainable management solutions. This study explores the potential of ecobricks as an alternative for managing plastic waste. By converting plastic waste into handicrafts that can be used as photo objects, ecobricks not only reduce the volume of waste but also provide economic added value. This study analyzes the life cycle of ecobricks, from the manufacturing process to their use in construction. The results show that ecobricks have promising potential in reducing the environmental impact of plastic waste and encouraging a circular economy.

This training aims to provide knowledge and skills to participants in processing used cooking oil into aromatherapy candles, as an effort to utilize household waste that is economically valuable and environmentally friendly. Used cooking oil, which is generally thrown away and can pollute the environment, can be processed into aromatherapy candles which have added value. This training includes material on basic techniques for processing used cooking oil, selecting aromatherapy ingredients, and the process of making candles until the product is ready for use. With this training, it is hoped that participants will be able to utilize used cooking oil waste creatively and productively, as well as opening up new business opportunities in the field of environmentally friendly products. The results of the training show that participants can easily understand and apply the knowledge provided, and produce quality aromatherapy candles that are ready to be marketed.

To enhance awareness of environmental cleanliness and prevent the spread of diseases or viruses, it is sometimes necessary to employ unique methods to attract people's interest, thereby encouraging them to dispose of waste properly. Traditional trash bins generally require manual operation to open and close, which can be inconvenient for users and increase interaction between people and the trash bin. Moreover, manual trash bins often struggle to manage waste when they are full. This research, conducted by Institut Teknologi Nasional, offers a solution by designing a smart trash bin based on Arduino Uno, utilizing the HC-SR04 or ultrasonic sensors, a servo motor, and a buzzer or speaker. In this smart trash bin, the HC-SR04 ultrasonic sensor is used to detect distance, while the servo motor functions to open and close the lid. The buzzer or speaker provides notifications when the lid is about to open or when the trash bin is full.

Vertiqua is an innovation in vertical cultivation on limited land and water. Vertiqua continues to be developed to be effective in cultivating fish. This research aims to examine the effectiveness of nitrogen distribution in vertiqua using biofical top filters. The analysis used is quantitative analysis by calculating and testing the data that has been collected. Total nitrogen feed input, total nitrogen wasted, and percentage of nitrogen absorption were calculated using existing formulas. Comparative testing using the T – test on the Mini Tab application was carried out to test the effectiveness of nitrogen absorption. The research results showed that nitrogen absorption in the vertiqua using the top biofical filter was effective, ranging from 198,12 – 200,89 mg/l. Nitrogen absorption in the vertiqua without using a biofical top filter ranges from 42,75 – 43,35 mg/l. The distribution value of effective nitrogen absorption in vertiqua using the top biofical filter is shown by a P value <0,05. Vertiqua with a biofical top filter is also able to reduce nitrogen levels so that fish survival is good.

Sukomulyo is a village located in Kaliwungu Selatan District, Kendal Regency, most of whose residents work as farmers. The rice fields in Sukomulyo village are irrigated using river water which is taken directly from the Waridin River with a diesel water pump. The process of irrigating the rice fields takes a long time, so the water pumps are simply left alone by the farmers because they are doing other activities. Often farmers forget to turn off the water pumps they turn on, resulting in wasteful use of river water and fuel. When the dry season arrives, there could be a decrease in the river water discharge to the ground which has the potential to result in farmers not being able to irrigate their rice fields with water. To overcome this problem, the Sukomulyo farmer group in collaboration with the PPL (Agricultural Extension Worker) of Kaliwungu Selatan District built a water pump house which is used for their rice field irrigation needs. With the construction of the water pump house, it is hoped that it can irrigate farmers' rice fields during the dry season and can increase agricultural production in Sukomulyo Village and can reduce farmers' worries when the river water does not flow

Environmental protection and improving industrial waste management, including slaughterhouses, are crucial to maintaining ecosystem balance and ensuring human health and welfare in the future. Good implementation of regulations and strict law enforcement are steps. The problem formulation in this research is: (1) What are the efforts of the Kupang City government in processing waste water at the Slaughterhouse in Kupang City? (2) What are the government's obstacles in enforcing criminal acts for perpetrators of waste water disposal at slaughterhouses in Kupang City? This research is Empirical Juridical Legal Research. This research uses data collection methods using interview techniques at the relevant department. The results of this research show: (1) Pollution due to waste water from slaughterhouses is a serious environmental problem in Kupang City. This article discusses the efforts made by the Kupang City government to overcome this problem. These efforts include routine monitoring and inspections to ensure compliance with regulations, strict law enforcement against violations, as well as education and outreach to the public about the importance of good waste management. (2) Law enforcement against perpetrators of waste water disposal at slaughterhouses is a complex challenge for the government. Apart from that, other challenges are less than optimal coordination between relevant agencies, as well as political and economic factors that influence law enforcement policies. By understanding these obstacles in depth, it is hoped that effective solutions can be found to increase the effectiveness of law enforcement against perpetrators of waste water disposal in slaughterhouses in order to maintain environmental sustainability.

The trend of thrifting has exacerbated the problem of fabric waste in Indonesia. Therefore, sustainable efforts are needed, such as activating fabric waste processing activities in the community. The Gulon Asri Jebres waste bank is a place for community service activities carried out by the UNS interior design study program to develop interior products that have more value for fabric waste materials. This community service activity emphasizes the development of interior product designs made from fabric waste. Development activities are accompanied by lecturers and interior design students from the start of making sketches until later they become ready-to-sell products using a design thinking approach. The products produced include chairs, laundry baskets, curtains, cushions, and plant hangings.

Climate change presents a significant global challenge that requires urgent and comprehensive action to mitigate its adverse effects on ecosystems, society, and the economy. Islamic jurisprudence, with its rich ethical framework, offers valuable insights into environmental justice, presenting a Sharia-informed approach to climate change mitigation. This study explores how principles of Sharia, such as Hifz al-Bi'ah (protection of the environment), Amanah (trust), and Isrāf (prohibition of wastefulness), can form a robust foundation for addressing environmental issues. Islamic law emphasizes the responsibility of humans as stewards of the Earth, encouraging sustainable resource management and the prevention of environmental degradation. The study further discusses how Sharia provides a proactive approach to environmental justice, focusing on prevention rather than simply reacting to environmental damage. Additionally, it explores how Islamic principles align with international environmental frameworks, offering a holistic approach to climate justice that respects both local traditions and global imperatives. The findings highlight the potential for integrating Sharia-based principles into contemporary environmental policies, particularly in Muslim-majority regions, where these values can enhance the legitimacy and effectiveness of climate change mitigation efforts. The paper concludes with recommendations for further research on the practical integration of Sharia principles into global climate policies and calls for collaboration among Islamic scholars, legal experts, and environmentalists to develop actionable, Sharia-based environmental policies that contribute to global climate action.

Education plays an important role in student development, especially in developing effective communication skills or public speaking. This community service aims to improve the creativity and public speaking skills of students at SDN Sumput, Sidoarjo, through socialization activities for making flower pots from plastic bottle waste. The main problems identified were the lack of self-confidence and public speaking skills among grade 5 students. Lack of interest and motivation as well as fear of public speaking hinder the learning process. The implementation method includes environmental observation, problem identification, activity coordination, and implementation of socialization and mentoring. This socialization was carried out on July 29, 2024, involving 15 students divided into 3 groups. Students were accompanied by KKN students in the process of recycling plastic bottles into flower pots and were trained in public speaking through presentations of their work. The results of this activity show that students not only improve their creative and public speaking skills, but also understand the importance of waste management and environmental awareness.

This research aims to determine the application of environmental cost accounting in the Super Jaya tofu factory industry.   This research uses qualitative methods. In this research, the data sources used are primary data and secondary data. The data collection technique uses observation, interviews and documentation. By conducting direct interviews with the owners of the Super Jaya tofu factory industry. The data analysis technique uses data collection, data reduction, data presentation, conclusions and data verification. The research results obtained from the application of environmental cost accounting are still not effective because they have not prepared financial reports and have not implemented cost accounting in presenting financial reports because the costs traced are only general costs related to the tofu production process. Such as raw material costs, labor costs, general capital costs and special capital costs, while the costs for waste management are only labor costs for the filtering section and environmental cleaning equipment costs.

Green Companies are a necessity for businesses to ensure sustainability in environmental management, preventing pollution and environmental damage during construction, production, or when products or services are used by customers, even up to the point of disposal. To provide satisfaction to tourists, tourist attractions must have adequate facilities to support the needs of tourists during their visit and to fulfill their expectations. Green industries and tourism play a crucial role in local economic development and environmental conservation. This study aims to provide assistance to green industries and tourism facilities in Kampung Batik Malon, focusing on sustainable development and empowerment of the local community. Assistance is provided through skills training to improve the quality of batik products and introduce environmentally friendly production techniques. In addition, the development of tourism facilities, such as homestays based on local culture and interactive batik galleries, is implemented to enhance the attractiveness of the tourist destination. Local community empowerment is carried out through participation in the decision-making process and the establishment of cooperatives to improve market access. The assistance also involves a sustainable approach to managing industrial waste and promoting environmentally friendly practices. The results of this assistance implementation show a significant increase in the quality of batik products, an increase in the number of tourist visits, and an increase in the income of the local community. Additionally, Kampung Batik Malon has successfully reduced its environmental impact through more sustainable production practices. Therefore, this activity contributes to sustainable development by demonstrating that the integration of green industries and tourism can be a successful model for strengthening the local economy while preserving the environment. Furthermore, this research provides guidance for other villages that wish to adopt a similar approach in developing the local potential of tourist attractions.

The development in the business world with sharp competition makes companies have to think more or review their business strategies. Improvements in all areas are very important in the development of today's business world, such as increasing productivity, efficiency and service, all of which have become the key to increasing company excellence. To increase efficiency in purchasing activities can be achieved in many ways, one of which is the Just In Time purchasing system. Just In Time is a method that is essentially to reduce waste through purchases in the right amount and time supported by the best quality. According to the results of the discussion that has been carried out, it can be concluded that the factors contained in the Just In Time purchasing system can be applied at CV Prima Jaya because its application can make inventory costs more efficient. In addition, there were also obstacles to quantity, quality, and suppliers. All of that can be overcome by maintaining good relations with suppliers. The implementation of this Just In Time purchasing system cannot be done directly but must be gradual.

Waste is a waste product of human activities that continues to increase along with the increase in population, activities, and consumption levels. In Bengkalis Sub-district, Bengkalis Regency, there are many waste accumulation points that have not been handled properly, mainly due to the lack of information about the location of waste accumulation. This causes the Bengkalis Regency Environment and Hygiene Agency (DLHK) to have difficulties in managing waste transportation, even though it is carried out every day. There are still many complaints from people who are outside the waste collection point. To overcome this problem, this research aims to develop a mobile application-based garbage pile complaint application focused on the Bengkalis District area. This application is designed to assist DLHK in monitoring environmental cleanliness more effectively. The Analytical Hierarchy Process (AHP) method is used to determine the priority of handling waste complaints, which will be implemented in a web platform to ensure optimal handling. Application development uses a prototype approach to ensure that the resulting application is in accordance with user needs and expectations. With this application, it is hoped that waste management in Bengkalis Regency will become more efficient and responsive to community complaints.    

This journal looks at the legal concerns of managing natural resources by producing compost using a market-based method based on garbage. This study's primary goal is to evaluate the efficacy and compliance of the legal requirements controlling the use of market trash as a raw material for compost fertilizer. The study's findings indicate that there are several pertinent laws that offer a legal framework for market waste management, including the Environmental Law and government waste management rules. However, there are obstacles to the law's implementation and enforcement, such as a lack of knowledge among business actors and oversight flaws. To ensure sustainability and efficiency in managing market waste as a resource for making compost, this study also found that, despite the existence of existing regulations, regulatory updates and harmonization are still required. To maximize the environmental and economic benefits of market waste management, this research recommends improvements in regulations and law enforcement, as well as increased education and training for business actors.The results of the study indicate that the utilization of market waste for making compost has great potential in supporting organic farming and reducing the volume of waste that ends up in landfills. However, the implementation of this program requires a deep understanding of applicable regulations, as well as support from the government and the community. This article concludes that comprehensive legal-based waste management can improve the efficiency and sustainability of natural resource management, as well as have a positive impact on community welfare.