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Plastic is a non-organic waste that has uses, especially in daily activities. Plastic is widely used by traders to package food and others. The widespread use of plastic by the community and its indiscriminate disposal after use can lead to the accumulation of waste. The problem can be solved with the 3R strategy, namely Reduce, Reuse, and Recycle. Not all locations have facilities to dispose of waste. Nowadays, landfills are a necessity, so it is necessary to provide these facilities. The solution is to make ecobrick products because they can be made easily. This research aims to increase public awareness in Pamarayan Village, Jiput Sub-district, Pandeglang Regency, Banten Province regarding ecobrick products as an invitation to care for the environment in order to create a healthy environment. The method used was the observation method and the approach was training in ecobricking. The result is that the community can understand the importance of maintaining environmental cleanliness and health through proper waste sorting, and are able to make ecobrick products in the form of trash cans from bottle waste for personal or community use.

EcoCleanzyme Wash is an innovative dishwashing liquid based on ecoenzyme, a liquid derived from the fermentation of organic waste such as fruit peels, vegetable scraps, brown sugar, and water. This product offers an environmentally friendly solution for household needs while addressing the challenges of suboptimal organic waste management. The three- month ecoenzyme fermentation process produces a liquid rich in natural enzymes with antibacterial, antifungal, and insecticidal properties, capable of breaking down harmful organic compounds. EcoCleanzyme Wash provides a safer alternative compared to conventional dishwashing liquids, which often contain harmful chemicals that can pollute water and soil. This product not only effectively cleans utensils but also supports the concept of sustainability by utilizing household organic waste. Additionally, EcoCleanzyme Wash helps reduce environmental pollution, often caused by improperly managed household waste. In Indonesia, organic waste constitutes the largest portion of household waste, which, if left unmanaged, can contaminate water, soil, and air, leading to various health issues such as diarrhea and skin infections caused by pathogenic microorganisms. The use of ecoenzyme in EcoCleanzyme Wash represents a tangible step toward promoting the concepts of reuse and sustainable waste management, aligned with government regulations on waste handling. This product also contributes to reducing negative impacts on ecosystems and raising public awareness about the importance of managing organic waste. This research aims to provide a detailed guide on the production process of ecoenzyme-based dishwashing liquid, covering the utilization of organic raw materials, fermentation steps, and product formulation. It is expected that the findings of this research can serve as a reference for the development of other environmentally friendly products and encourage innovation in household waste management. EcoCleanzyme Wash is a progressive step in creating a product that not only fulfills household needs but also positively impacts the environment.

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 community service activity aims to provide education about the use of shopping bags (totebags) from patchwork waste as an alternative to plastic bags to MSME business actors processed fish in Kampung Nelayan Desa Salira. The method used by the author in this activity begins with providing training on plastic bag waste, then also an introduction to the utilization of fabric waste that can be reused to make new products that are useful and ends with the handover of helanja bags to the business actors of processed fish MSMEs in Kampung Nelayan Desa Salira. The processed fish MSME products are in the form of payus fish amplang crackers, fish rolade, fish nuggets, fish meatballs made from fish, and in their sales require reusable shopping bags and have product selling value.

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.

This study explores the innovative use of chitosan from shellfish and natural cellulose as an additive to decrease the viscosity of used lubricating oils. We synthesized and applied chitosan and cellulose as adsorbents to filter impurities and enhance the rheological properties of the oil. During the experiment, different amounts of chitosan and cellulose were used, and the Ostwald method was used to measure the viscosity. As expected, adding more chitosan (20 grams) made the viscosity much better compared to mixes with cellulose. This led to a viscosity of 658.20 cP, while a 15:5 chitosan-to-cellulose ratio made the viscosity the lowest, at 513.06 cP. FTIR analyses confirmed the structural integrity of chitosan post-synthesis. Challenges in optimizing chitosan production, particularly in achieving standard deacetylation levels, were noted as potential limitations. The results suggest that using biopolymers like chitosan and cellulose together is a long-term way to improve oil recovery and reuse, lower waste, and make industrial uses better. In the future, researchers should concentrate on enhancing the manufacturing process of chitosan to enhance its adsorption capabilities, and explore alternative functional modifications that could enhance its utility in a wider range of scenarios

Kuliah Kerja Nyata (KKN) yang dilaksanakan di Kelurahan Mundam bertujuan untuk memberikan kontribusi nyata bagi masyarakat setempat. Kegiatan ini fokus pada isu lingkungan, kesehatan dan pendidikan. Melalui berbagai program sosialisasi implementasi 3R (reduce, reuse, recyle) sabun cuci piring dari limbah kulit nanas dengan metode eco enzym, pengadaan tempat sampah, pemberian bibit dan penanaman pohon, sosialisasi DAGUSIBU (dapatkan, gunakan, simpan, buang), dan lainnya. Mahasiswa KKN berhasil meningkatkan kesadaran akan pentingnya kebersihan lingkungan, meningkatkan kualitas pendidikan anak-anak, atau memberdayakan UMKM lokal. Secara keseluruhan, KKN ini telah memberikan dampak positif bagi masyarakat Kelurahan Mundam dan diharapkan dapat menjadi model bagi kegiatan pengabdian masyarakat lainnya.

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.

In many areas, the amount of waste continues to increase along with population growth and public consumption. One of them is in Badak Baru Village, Kutai Kartanegara. This causes serious environmental problems, such as pollution and public health. The problem that will be raised in the Community Service Program through KKN (Real Work Lectures) is increasing public awareness of the importance of good waste management. This KKN will be held from 24 June to 26 July 2024. This KKN program aims to increase public awareness of the importance of good waste management through activities carried out by KKN students. In order to create a clean and healthy environment, students carry out outreach regarding 3R (Reduce, Reuse, Recycle) and effective ways of managing it. Other activities carried out include making Madding about environmental law, and also participating in the drafting of Draft Village Regulations on Household Waste Management and Guidelines for Organizing Waste Banks in 2023, as well as other actions in the surrounding environment. Through interactive and participatory methods, this KKN program has succeeded in attracting the public's attention and increasing their understanding of the importance of reducing, reusing and recycling waste.

The increase in population has an impact on increasing waste, including cooking oil waste known as used cooking oil. This used cooking oil is not always thrown away, but can also be reused. However, improper disposal of waste cooking oil can cause environmental problems. Used cooking oil is a type of waste that can pollute the environment by increasing COD (Chemical Oxygen Demand) and BOD (Biological Oxygen Demand) levels in the water. Apart from that, this oil can also cause an unpleasant odor due to the biological degradation process. Currently, used cooking oil is often thrown directly into the drain. This research was conducted in Wonorejo Village, Surabaya, with data collection methods in the form of questionnaires, field observations and interviews as primary data, as well as a general description of the area and related literature as secondary data. The results of the analysis show that there are variations in views and practices in managing used cooking oil among respondents. The level of public awareness about the importance of managing used cooking oil to support the zero waste concept varies. The majority of respondents (64%) stated that the main responsibility for managing used cooking oil lies with the users themselves.

This research method uses qualitative research, researchers use Purposive Sampling sampling. Data Collection Techniques using interviews, documentation, observation. Data Validity Testing Techniques using source triangulation and data analysis techniques using several stages (Sugiyono, 2020): organizing data, grouping based on categories, themes, and answer patterns, testing assumptions or problems that exist against data, looking for alternative explanations for data and writing research results. The formulation of the problem in this study is how is the marketing strategy in increasing visitor satisfaction of the Kendedes swimming pool in Sragi Village, Talun District, Blitar Regency and what factors support and hinder the implementation of marketing strategies in increasing visitor satisfaction of the Kendedes swimming pool in Sragi Village, Talun District, Blitar Regency. The purpose of this study is how is the marketing strategy in increasing visitor satisfaction of the Kendedes swimming pool in Sragi Village, Talun District, Blitar Regency and what factors support and hinder the implementation of marketing strategies in increasing visitor satisfaction of the Kendedes swimming pool in Sragi Village, Talun District, Blitar Regency. The results of this study are that the Kendedes swimming pool uses a 4 P marketing mix (Product, Price, Place & Promotion). Consumer satisfaction is the conformity of expectations that customers and visitors to the Kendedes swimming pool in Sragi Village, Talun District, Blitar Regency feel that the facilities and infrastructure and services from the Kendedes swimming pool in Sragi Village, Talun District, Blitar Regency are in accordance with the expectations of customers and visitors to the Kendedes swimming pool in Sragi Village, Talun District, Blitar Regency. Then the factor of interest in reuse, that customers and visitors to the Kendedes swimming pool in Sragi Village, Talun District, Blitar Regency feel satisfied so they want to come back to the Kendedes swimming pool in Sragi Village, Talun District, Blitar Regency. The next factor is the willingness to recommend, that customers and visitors to the Kendedes swimming pool in Sragi Village, Talun District, Blitar Regency provide information and share experiences with others so that other people are also interested in visiting the Kendedes swimming pool in Sragi Village, Talun District, Blitar Regency. The supporting factors for the promotion of the Kendedes swimming pool in Sragi Village, Talun District, Blitar Regency are social media because it is free of charge and of course used by many people. The inhibiting factors for the promotion of the Kendedes swimming pool in Sragi Village, Talun District, Blitar Regency are limited to using only social media and not doing other more effective forms of promotion.Send feedback,Side panels,History,Saved

The increasing number of businesses using e-commerce in Bali, the use of e-wallets like OVO is expected to integrate technology into daily life and drive the growth of the digital economy in the region. Factors indicated to influence the intention to reuse include satisfaction, perceived usefulness, and perceived ease of use. This study employs an associative research design with causal relationships and was conducted in Badung Regency. The sample size consisted of 105 respondents. Data was collected through questionnaires and then analyzed using descriptive analysis and structural equation modeling (SEM) based on PLS. The results showed that perceived usefulness has a positive and significant influence on the intention to reuse. Perceived ease of use also has a positive and significant impact on the intention to reuse. Perceived usefulness has a positive and significant effect on satisfaction. Perceived ease of use has a positive and significant effect on satisfaction. Satisfaction has a positive and significant influence on the intention to reuse. Satisfaction significantly mediates the indirect effect of perceived ease of use on the intention to reuse. It also significantly mediates the relationship between perceived usefulness and the intention to reuse. These findings underscore the importance of usefulness, ease of use, and satisfaction in increasing users' intention to continue using the technology. OVO e-wallet managers should focus on enhancing the benefits, ease of use, and user experience to improve user retention and loyalty.    

Used cooking oil cannot be reused due to its changed physical and chemical structure, or commonly referred to as “minyak jelantah”. Repeated use of minyak jelantah can pose a risk of various diseases. Meanwhile, “minyak jelantah” is included in waste that is difficult to decompose if it is just thrown away. The utilization of used cooking oil into candles is a solution to this problem. Based on research using observation methods in Sarimukti Village residents, and experimental research methods and documentation, minyak jelantah waste can be reduced by being utilized into aromatherapy candles. Based on the organoleptic test, the results show that the color is not suitable, while the shape and smell are suitable based on the concentration of stearic acid and telon oil added. Based on the burn time, the more telon oil added, the faster the candle runs out.

Nolokerto Village is a developing village and most of the businesses owned by the village, one of which is a catering business, produce a lot of organic waste that has a high water content, especially those that are easily decomposed. Unmanaged organic waste can cause environmental problems. Realizing the importance of effective waste management, KKN UIN Walisongo Semarang students held counseling and compost training activities so that food waste can be processed and reused. The program began with general materials on waste, followed by training on compost fertilizer for organic waste. The resulting compost fertilizer is then distributed to villagers to support agriculture and reduce the environmental impact of organic waste.

Waste is one of the problems that is quite difficult to deal with in Indonesia. This happens because of the people's habits as consumers who always produce waste. Therefore, changing used goods into goods that can be reused can help reduce environmental pollution. Waste management is one of the main challenges in achieving environmental sustainability. This community service program aims to develop a used goods creation business based on business and environmental sustainability in Kembangan Selatan Subdistrict. The methods used include outreach, training and assistance to local communities in processing used goods into economically valuable, creative and innovative products. Through this program, it is hoped that the community can improve their skills in processing waste, create new business opportunities and reduce the amount of waste generated. pollute the environment. The results of this activity show increased awareness and community participation in protecting the environment, as well as the formation of several new business groups engaged in recycling. Business sustainability is measured through indicators of increasing income and quality of life for the community. Thus, it is hoped that this program can become a business development model that is not only economically profitable, but also contributes positively to environmental sustainability.

Waste cooking oil/used cooking oil which is blackish brown is residue from the frying process that still contains fatty acids which have the potential to be used to make soap.  At the Al Ihsan Puteri Islamic boarding school, Banjarmasin used cooking oil waste has not been managed well. This activity aims to educate the Islamic boarding school community (santriwati) and boarding school administrators about making washing soap from used cooking oil as a solution so that used cooking oil can be reused in other forms. Participants in the activity were 15 female students at the Al Ihsan Puteri Banjarmasin Islamic Boarding School. This activity consists of discussion (counseling) and direct practice. The chemistry knowledge education material explains the impact of used cooking oil on the body, while the soap-making training material explains the cold saponification method through demonstrations. The service results show that almost 100% of the students who initially did not know how to reuse used cooking oil in soap, now know how to reuse used cooking oil. Students also increase their knowledge and skills in reacting with materials in the saponification process.

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.  

This paper explores the Time-Based One-Time Password (TOTP) authentication mechanism enhanced with lightweight cryptographic algorithms, presenting it as an advanced solution to the limitations of traditional OTP systems. There are a lot of applications and systems where this mechanism is applied. For example, bank applications, e-commerce websites, access control system, healthcare system, etc. TOTP generates dynamic, time-sensitive passwords using the current time and a secret key processed through a cryptographic hash function, significantly improving security by reducing vulnerabilities to code reused and interception. The adoption of lightweight algorithms ensures that TOTP can be efficiently implemented on resource-constrained devices, such as those on the Internet of Things (IoT) ecosystem. Despite its benefits, TOTP faces challenges including synchronization issues between client devices and servers, and a trade-off between computational efficiency and security strength. This paper discusses the implications of these challenges and evaluates how TOTP, with appropriate design considerations, can provide a robust, secure, and efficient authentication method suitable for various applications, from digital banking to IoT environments.

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%.