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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.

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.

Industry 4.0 has brought significant changes to human life across various sectors, including education. The education sector serves as a fundamental pillar for the growth and development of future generations, requiring collaboration from all stakeholders. Effective regulations and measures are essential to improve the quality of education and teaching.One activity within the education sector generates domestic wastewater that must be treated. Domestic wastewater refers to water waste from household activities, such as washing, kitchen use, and toilets. This study employs a quantitative method using secondary data on wastewater flow rates and parameters. The research stages include preparation, data collection (both primary and secondary), data analysis, and the preparation of environmental documents.Domestic wastewater is categorized into grey water and black water. The treatment of wastewater using anaerobic and aerobic biofilters has proven effective in reducing organic pollutant levels. The treated wastewater will be repurposed for irrigating Green Zone in school buildings.

This research aims to analyze assistance in making environmentally based handicrafts as part of the implementation of the Pancasila Student Profile Strengthening Program (P5) at SDN 3 Demulih. P5 is designed to build student characters who are creative, care about the environment, and are able to work together. This research uses a qualitative descriptive method, this research evaluates the effectiveness of mentoring in increasing students' creativity and awareness of environmentally friendly lifestyles. The research results show an increase in students' ability to use recycled materials to create useful products as well as increased awareness of environmental issues. This program has also succeeded in strengthening the application of Pancasila values, especially cooperation and social responsibility. Apart from improving practical skills, this activity forms students' character who cares about the environment and is oriented towards sustainability.

This research aims to analyze assistance in making environmentally based handicrafts as part of the implementation of the Pancasila Student Profile Strengthening Program (P5) at SDN 3 Demulih. P5 is designed to build student characters who are creative, care about the environment, and are able to work together. This research uses a qualitative descriptive method, this research evaluates the effectiveness of mentoring in increasing students' creativity and awareness of environmentally friendly lifestyles. The research results show an increase in students' ability to use recycled materials to create useful products as well as increased awareness of environmental issues. This program has also succeeded in strengthening the application of Pancasila values, especially cooperation and social responsibility. Apart from improving practical skills, this activity forms students' character who cares about the environment and is oriented towards sustainability.

Aromatherapy is beneficial for maintaining and enhancing physical, physiological, and spiritual well-being by consuming flowers, roots, fruits, resins, bark, and other aromatic compounds from plants. In Indonesia, around 90% of the used cooking oil produced is not managed properly, leading to environmental issues and contaminating soil and water, as well as public health. To reduce its negative impact on the environment and public health, it can be processed into valuable products such as aromatherapy candles. The purpose of this study is to study the impact of using used cooking oils and its benefits for the community of Sinarsari Village so that they can utilize this waste more sustainably and efficiently. The Tim PPK Ormawa HImasiter IPB (Student Association of Nutrition and Animal Feed) plays a significant role in promoting new innovations that benefit the community, one of which is the creation of aromatic candles with the aim of learning how to recycle used oil into useful products. The results of this comprehensive evaluation will assist the implementing team in identifying the strengths, weaknesses, opportunities, and challenges of this program.

The village of Suka Makmur faces challenges in waste management, where waste is often not sorted and potentially poses environmental impacts. The Waste Bank programme has been reactivated to address this issue by implementing the 3R principles (Reduce, Reuse, Recycle) and providing economic benefits to the community. This research employed a participatory approach, involving residents in an initial survey, waste sorting training, and the operation of the Waste Bank. Continuous education was provided to ensure the community understands the importance of waste management and the economic potential of collected waste. The results indicate increased community participation, reduced waste disposal volumes, and economic benefits for residents. The Waste Bank has successfully raised environmental awareness and empowered the community to manage waste sustainably.

The Community Service Program (KKN) is a form of community service carried out by students as part of the Tri Dharma of Higher Education. The KKN activity carried out in Telaga Jernih Village, Langkat Regency, aims to improve financial literacy among early childhood. This program focuses on introducing basic economic concepts and money management through interactive activities involving children and the local community. One of the main activities in this program is making piggy banks from recycled materials, which not only aims to instill the habit of saving, but also increase environmental awareness. The method used in this activity is a qualitative approach with direct observation, interviews, and documentation. The results of this activity show a significant increase in children's understanding of the importance of saving and managing money wisely. Children who were previously not used to saving, began to show changes in behavior by setting aside their pocket money regularly. In addition, this program also has a positive impact on parents and the local community, who are beginning to realize the importance of financial education from an early age. However, the challenges faced in implementing this program are limited time and resources, which can affect the sustainability of saving habits among children after the program ends. Therefore, support from schools and parents is needed to ensure that the savings habits that have been taught can continue to develop. Overall, this program has made a significant contribution in forming awareness of the importance of financial literacy and money management among early childhood and the Telaga Jernih Village community.

KKN Mandiri is a real work lecture activity carried out by students individually. It aims to increase awareness and understanding of early childhood children about the importance of saving as a provision for the future. The activity was carried out in two schools, namely Nur Ilmi Kindergarten, Jaranguda Village and Muhammadiyah 01 Medan Mandala Islamic Senior High School. Through socialization and motivation to save, it is hoped that children can develop a habit of living frugally and being responsible in managing money from an early age. The methods used in this activity include lectures, discussions, questions and answers, and making creative piggy banks from recycled materials. This activity is designed to provide an understanding that is easily accepted by children with a fun and interactive approach. The results of this community service activity show an increase in students' understanding of the benefits of saving. Students become more enthusiastic in setting aside their pocket money to save, both in piggy banks and in the bank. Through making creative piggy banks, students gain direct experience in the practice of saving and feel motivated to continue this habit at home. In addition, the involvement of parents and teachers also strengthens the positive impact of the program, where they are expected to continue to support children in saving. The conclusion of this activity is that the socialization of saving in early childhood has a positive impact in raising awareness of the importance of saving. The creative approach taken has proven effective in motivating students to start saving. This program is expected to be a foundation for children in forming good financial habits in the future. Continuous support from schools and families will greatly assist in maintaining the sustainability of saving habits in children.

The purpose of this research is to identify in Mak Teduh Village, where most of the area consists of peatland with oil palm, rubber, and acacia plantations, the local potential that can be developed into superior products for the village as a means to enhance the community's economy through development focused on the sustainability of resources and the environment. The identification method is applied by the OVOP (One Village One Product) criteria and SWOT analysis. The results of the research indicate several local potentials that can be developed into superior products, namely creative industries in the form of pandan leaf crafts and crafts from recycled plastic, fisheries such as salted fish, and livestock including acacia honey cultivation. In addition, there is also the potential for tourism that can be developed. Based on the OVOP criteria and SWOT analysis, the potential of the village that can be developed as a flagship product is in the cultivation of acacia honey. The availability of land and bee feed in acacia and palm plantations, as well as opportunities in national and international markets, means that acacia honey cultivation also provides a chance for communities to engage in sustainable businesses while enhancing public awareness of forest and environmental conservation. The cultivation of acacia honey also serves as a preventive solution to the cases of forest and peatland fires that frequently occur in Mak Teduh Village.

This article is Building Simple Everyday Economic Knowledge for Children in Gongsol Village aims to equip children with basic economic skills that are relevant to everyday life. Teaching concepts such as saving, money management, production, and distribution of goods at an early age provides an important foundation for the development of financial and cooperation skills. Children are involved in practical activities such as making piggy banks from recycled materials and participating in productive activities that teach the values ​​of hard work and economics. In addition to improving understanding of economics, this program also develops character, discipline, responsibility, and interpersonal skills such as negotiation and leadership. Increasing children's motivation to learn is another significant result of this program, with varied learning methods that encourage them to participate more actively. It is hoped that the economic knowledge that is taught from an early age can help children in Gongsol Village to be wiser in managing their resources, building a more independent future, and contributing to the welfare of their village in a sustainable manner.

This research shows that plastic bricks use plastic waste as a mixed material, offering an innovative solution in the construction sector that is more environmentally friendly and sustainable. The raw material used in making these bricks is plastic waste, which will reduce the amount of plastic waste thrown away in landfills. And the use of recycled plastic waste 5 (PP) polypropylene as a binding material in the paving block mixture produces maximum compressive strength.

Infrastructure development contributes to increasing the competitiveness of domestic products, employment energy absorption, and regional growth. Therefore, a strong, rigid and stable construction is needed. The use of materials for construction needs to be considered, especially commonly used materials such as concrete. This research aims to analyze the effect of variations in granite content as a partial substitution for coarse aggregate on the bond strength of BRA (Concrete Recycled Aggregate) concrete. Experimental methods were used in this research. The concrete mix design uses a variety of granite waste with a content of 0%; 15%; 30%; and 45%. The test object used was a concrete cube with a side length of 20 cm. The bond strength of the concrete is tested using a Universal Testing Machine (UTM) and a dial gauge. Based on research, the maximum bond strength value is obtained at a granite content of 30%. The addition of granite waste causes an increase in the bond strength value. The bond strength value of concrete when slip occurs is 0.25 mm at 0% granite content; 15%; 30%; and 45% each valued at 14.61 MPa; 15.44 MPa; 18.62 MPa; and 17.15 MPa. Concrete bond strength value at maximum load at 0% granite content; 15%; 30%; and 45% each valued at 22.42 MPa; 22.59 MPa; 24.01 MPa; and 23.12 MPa.

Currently, infrastructure development is a priority of the Indonesian government which aims to improve the quality of life of the community and equitable distribution of infrastructure development. The need for concrete material as a construction material also increases in line with the increase in infrastructure development. The use of recycled aggregate materials, especially granite waste, is a promising option in sustainable infrastructure development. This study was conducted with the aim of knowing the effect of partial substitution of coarse aggregates using granite waste variations on the binding time and permeability of concrete. Experimental method was chosen in this research. The levels of granite waste used were 0%; 15%; 30%; and 45% by weight of coarse aggregate or gravel. The test specimens used for the concrete bond time study were fresh concrete poured into cube molds measuring 20 cm x 20 cm x 20 cm with a minimum height of 15 cm. Testing concrete bond time using a penetrometer tool. The test specimen for concrete permeability is a cube measuring 15 cm x 15 cm x 15 cm, totaling 12 pieces and tested with a Permeability Test Apparatus (Water Permeabilty Apparatus).The results showed that partial substitution of coarse aggregate with granite waste variation did not affect the setting time of concrete up to a certain level. Based on the results of the research conducted, the initial setting time and final setting time values of 0%, 15%, 30%, and 45% granite content variations fluctuate and the coefficient of determination (R2) value in linear regression is only 0.5 and 0.3. Partial replacement of coarse aggregate with granite waste has an effect on the impermeability of concrete which meets the requirements for medium aggressive impermeable concrete. Water pressure of 5 kg/cm2 for 72 hours applied to the concrete partial replacement of coarse aggregate with granite waste variation resulted in permeability coefficient values of 4.11 x 10-12 cm/s; 3.48 x 10-12 cm/s; 2.17 x 10-12 cm/s; and 3.25 x 10-12 cm/s. The minimum coefficient value of concrete with partial substitution of coarse aggregate with granite waste is obtained at 30% by weight of coarse aggregate. Granite, whose specific gravity is greater than gravel, produces denser and more water-resistant concrete.     

Concrete is one of the most common construction materials used throughout the world. Concrete consists of three main components: cement, coarse aggregate, and fine aggregate. Coarse aggregate serves as the main structural component in concrete, providing strength and resistance to external loads. Currently, technological advancements in construction are rapidly progressing. Therefore, innovation in concrete production is necessary, one of which is recycled aggregate concrete. The aim of this research is to determine the effect of using granite waste as a partial substitute for coarse aggregate on toughness of concrete. The method used in this research is experimental method. In this study, the variation level of granite waste used in this study was 0%; 15% ; 30% ; and 45%. The objects used for this research are blocks with dimensions of 400x100x100 mm tested using a Universal Testing Machine. The results of this research show that the toughness value obtained from the results of toughness testing on concrete with varying levels of 0% granite waste; 15% ; 30% ; and 45% respectively, namely 1.9589 kNmm; 2.2362 kNmm; 2.4189 kNmm; and 2.2118 kNmm.

The development of concrete making technology has developed rapidly nowdays, the innovations in terms of material use and workmanship. The implementation of construction work carried out today pays attention to aspects of strength, rigidity, and high durability, as well as sustainability. To support these two things, research can be carried out on making concrete using granite waste. The research method used in this study is an experimental method. The concrete mix design uses variations of granite waste with successive levels of  0%, 15%, 30%, and 45%. The test specimen used for tensile strength testing is cylindrical with a diameter of 15 cm and a height of 30 cm, the test uses 12 specimens where each variation uses 3 specimens. The test is performed when the specimen has reached the age of 28 days. The test specimen tested has met the planned compressive strength requirements at a concrete life of 28 days where the results are greater than 20 MPa. Results of testing the tensile strength of concrete variations of granite waste as a partial substitution of coarse aggregate with variations of granite waste of 0%, 15%, 30%, and 45% respectively; 2.43 MPa; 2.50 MPa; 2.97 MPa; and 2.78 MPa.

This study aims to determine the Role of Universities in Waste Management According to Law Number 18 of 2008 concerning Waste Management. This type of research is Normative Research. The results of the study indicate that waste management is carried out through waste reduction and handling activities (Articles 19-23), and everyone is required to reduce and handle waste in an environmentally friendly manner (Article 12 Paragraph (1). Waste reduction is carried out through 3R activities, namely limiting waste generation (reduce), recycling waste (recycle), and reusing waste (reuse). campuses/universities including all elements and elements in them have duties and obligations in waste management. As a higher education institution, campuses should be able to conduct studies and innovations in waste management. Don't let campuses only become contributors of waste in an area. Campuses or universities must have policies, movements, and innovations in waste management, and are expected to be role models in waste management.  

Penelitian ini dilatar belakangi oleh banyaknya limbah makanan di Indonesia serta kurangnya kesadaran dan pemahaman masyarakat mengenai pengelolaan limbah makanan. Sampah makanan akan selalu menjadi masalah lingkungan yang berkepanjangan jika tidak dilakukan upaya mengatasinya. Penelitian ini bertujuan untuk melakukan analisis terhadap berbagai metode manajemen sampah makanan (food waste) agar dapat meningkatkan kesadaran masyarakat mengenai food waste. Metode penelitian yang diterapkan adalah systematic literature review dengan menggunakan diagram PRISMA sebagai alat untuk seleksi data dari literatur yang telah terkumpul. Data diambil dari database Google Scholar dan dipilih serta dianalisis sesuai dengan kriteria yang telah ditentukan. Proses pengumpulan data dilakukan dengan mencari sumber yang relevan menggunakan kata kunci "food waste management". Hasil analisis literatur menunjukkan Implementasi metode seperti Bank Makanan, literasi sampah, dan program 3R (Reduce, Reuse, dan Recycle) diharapkan dapat menciptakan lingkungan yang sehat, ramah, dan berkelanjutan. Implementasi dan keberlanjutan pengelolaan limbah dapat berjalan baik apabila melibatkan partisipasi aktif dari berbagai pihak, mulai dari pemerintah, masyarakat sipil, dan kolaborasi antar berbagai pihak. Peran masyarakat sangat diperlukan dalam mendukung pengelolaan limbah makanan, melalui literasi, edukasi, dan implementasi konsep 3R, masyarakat dapat lebih sadar akan dampak lingkungan dari pemborosan makanan dan akumulasi sampah.

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

Plastic waste is a global problem that is increasing every year because it is difficult to decompose. This article discusses the growth in waste volume in Indonesia which is triggered by population growth, urbanization, and changes in consumption patterns, as well as the main challenges in waste management at the Bantargebang TPST. Through a qualitative approach and case studies, this article highlights the need for a comprehensive approach to waste management, including the establishment of waste banks and increasing public awareness. The main challenges at the Bantargebang TPST include decreasing capacity and difficulties in handling single-use plastic waste. The proposed solutions include expanding TPST capacity, implementing environmentally friendly technology, increasing public awareness, developing adequate infrastructure, and greater funding allocation. Collaboration between the government, the private sector and the community is the key to overcoming this challenge and building a sustainable and environmentally friendly waste management system at the Bantargebang TPST.