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This study aims to find the most dominant type of waste that damages the coastal area of ​​Putra Deli Beach, Deli Serdang Regency. Based on field observations and interviews with local people, it was found that inorganic, including plastic, is the type of waste that damages the coastal environment the most. Plastic waste persists such as beverage bottles, plastic bags, styrofoam, and food wrappers which are dominant because they do not decompose quickly. This condition is exacerbated by the low public awareness in maintaining cleanliness and the lack of adequate waste management facilities. The impact is not only visually polluting the environment, but also threatening the marine ecosystem, public health, and reducing the value of local tourism. The results of this study are expected to be the basis for mitigation efforts and improving waste management in coastal areas.

Coastal environmental pollution is an increasingly complex problem in Indonesia, especially due to uncontrolled waste disposal. This study aims to analyze the impact of waste disposal on the environment in the coastal area of Putra Deli Beach, Deli Serdang Regency. The research approach used is mixed-method with data collection through direct observation, semi-structured interviews, and literature study. The results showed that plastic waste dominates the types of waste found at the research site and is the main cause of marine ecosystem pollution. The impacts include damage to marine biota habitat, decreased tourist attraction, public health problems, and economic losses for local businesses. The lack of waste management facilities and low environmental awareness also exacerbate this condition. Therefore, an integrated waste management strategy based on community and stakeholder collaboration is needed to maintain the sustainability of the coastal environment.

The pharmaceutical industry produces solid, liquid, and gaseous waste containing active pharmaceutical ingredients that pose serious environmental risks. These wastes can disrupt ecosystems and accelerate antimicrobial resistance. This systematic literature review examines pharmaceutical waste concepts, classifications, characteristics, and relevant regulatory frameworks. It also addresses ecotoxicological effects on aquatic and terrestrial ecosystems, antibiotic contamination and resistance, water and soil pollution, treatment technologies, industrial policies, and best practices. Findings show that conventional wastewater treatment is largely ineffective at removing pharmaceutical residues, resulting in their presence in surface water, soil, and even drinking water. Compounds such as β-blockers, cytostatics, antibiotics, and hormones harm aquatic life by impairing reproduction and causing mutations. Antibiotic-laden industrial waste contributes to the emergence of resistant bacteria. Recommended treatment methods include biothermal processes, advanced oxidation (e.g., UV/H₂O₂, ozonation), adsorption (activated carbon), coagulation-flocculation, and controlled incineration. Stronger enforcement of hazardous waste regulations (e.g., Government Regulation No. 101/2014, Ministry of Environment and Forestry Regulation No. 56/2015) and adherence to WHO (2025) guidelines are essential. In conclusion, multisectoral collaboration (One Health), improved waste treatment capacity, and adoption of best practices are crucial to preventing pharmaceutical pollution and promoting environmental sustainability.

Cleanliness is a fundamental aspect of life that plays an important role in maintaining the health of individuals and society. The concept of cleanliness covers various aspects, starting from personal cleanliness, the environment, to the cleanliness of the residence. Research shows that good hygiene can prevent the spread of disease, improve quality of life, and create a comfortable and productive environment. However, challenges in maintaining cleanliness include lack of public awareness, limited access to sanitation facilities, and poor waste management. Therefore, collaborative efforts are needed from individuals, communities and governments to increase awareness of the importance of cleanliness through education, health campaigns and the provision of adequate facilities. By maintaining cleanliness, it is hoped that a healthier, more prosperous and sustainable life will be created.

The main issue faced by BSI Farm is the suboptimal quality control at each stage of hydroponic kale production, resulting in inconsistent product quality. This study aims to analyze the quality of hydroponic kale products at BSI Farm using the input-process-output (IPO) approach. The analysis covers all stages of production, from the selection of superior seeds, nutrient and water management, cultivation using the NFT (Nutrient Film Technique) system, to harvesting and packaging. The results show that the implementation of strict quality control at each stage successfully produces fresh, clean, pesticide-free kale that meets modern market standards. Production waste is managed through a grading system and utilized as animal feed to minimize environmental impact. The main challenges include pest attacks, plant diseases, and inconsistent harvests due to a lack of standardized procedures. However, these can be addressed through regular monitoring, appropriate use of pesticides and fungicides, and consistent implementation of cultivation SOPs.

This study analyzes the impact of sustainable tourism concept implementation on the community of Tobati-Enggros Village, Jayapura City. Using qualitative descriptive methods with in-depth interviews, participatory observation, and document analysis involving 35 informants, this research evaluates three pillars of sustainability: economic, socio-cultural, and environmental aspects. The findings show that sustainable tourism implementation achieves a moderate effectiveness score of 2.7. Economically, tourism creates new employment opportunities and increases community income by 25%-400%, but benefits distribution remains unequal with 70% of profits controlled by 30% of residents. Socio-culturally, tourism helps preserve the unique "Women's Forest" tradition while causing erosion in traditional practices like gotong royong (community cooperation). Environmentally, significant ecosystem degradation occurs with water quality declining 56% and mangrove forest coverage reducing by 10%. The study recommends strengthening community-based tourism institutions, implementing comprehensive waste management systems, and developing community capacity building programs to optimize sustainable tourism benefits while preserving environmental and cultural integrity.

This study diagnoses obstacles to transitioning to a circular economy in Iraq and analyzes opportunities for sustainable economic development. It employs a comprehensive descriptive analysis of economic, social, and environmental data related to the circular economy in Iraq. The findings reveal a decline in per capita economic growth in Iraq, dropping from 10.8% in 2016 to 4.3% in 2022, with some years experiencing negative growth. This decline stems from the economy's heavy reliance on the oil sector, which accounts for 61.1% of GDP, and insufficient infrastructure for clean production models and resource recycling. The study recommends effective government strategies to diversify away from oil dependence by developing sustainable agriculture, green industries, and eco-tourism. It stresses the need to invest in waste recycling and renewable energy projects and to offer tax incentives for small and medium-sized enterprises (SMEs). Additionally, it concludes that collaboration with developed countries and international organizations could accelerate Iraq's transition to a circular economy, enhancing economic sustainability and improving living standards.

Osha Snack UMKM faces issues related to product defects, which are suspected to arise due to a lack of quality control in the production process. This study aims to identify the causes of product defects, provide improvement suggestions, and determine effective ways to control product quality. Data were collected through interviews with relevant parties and field surveys to gather information on production volume, product defects, and production activities. The data were processed by organizing it into check sheets, performing regression calculations, and analyzing it using scatter diagrams and fishbone analysis. The Statistical Process Control (SPC) method was applied to analyze, control, and improve the production process. The results show a significant relationship between production volume and the number of defective products, with the regression equation Y = 0.0764X and a coefficient of determination R² = 0.9625. The most common type of defect is broken snacks before packaging. In addition, waste products also come from product returns by buyers, which leads to raw material waste and hinders the achievement of production targets. The analysis results suggest that the UMKM should implement quality control measures in the form of process improvements, enhancement of work skills, proper machine maintenance, implementation of SOPs, and improvement of working conditions.

According to a UNESCO report, more than 80% of industrial wastewater containing hazardous substances is discharged without treatment. This research aims to understand the implementation of Permen LHK Number 6 of 2021 in the management of hazardous waste at PT Bina Guna Kimia and the role of the Semarang Regency Environmental Agency (DLH). The research uses a descriptive qualitative approach with empirical juridical methods. Data were obtained through observation, interviews, documentation, and literature studies, and validated by source triangulation and analyzed qualitatively. The results showed that PT Bina Guna Kimia has implemented Permen LHK No. 6 of 2021 well, although there are still challenges such as the lack of understanding of employees about waste classification. The B3 waste management system in this company is quite effective with strict procedures in identification, storage, transportation, recording through logbooks, and real-time monitoring through the SIMPEL application. The company also regularly conducts training and works with certified vendors. DLH Semarang Regency plays an active role through supervision, socialization, compliance audits, coaching, and education to businesses to increase environmental awareness and compliance. This study suggests that DLH and PT Bina Guna Kimia improve education and training programs, and encourage industry players to seek alternative funding for the implementation of environmentally friendly technology. In addition, collaboration between stakeholders needs to be improved to create effective and sustainable hazardous waste management.

The Sewu Sambang Tourism Area is located in Banyuwangi Regency, East Java Province. This area has a unique culture and natural beauty that is very interesting to visit. Therefore, the design of this tourist area was carried out using a sustainable design approach. The design was carried out by considering aspects of ecological, social and economic sustainability. Ecological aspects are taken into account by selecting environmentally friendly building materials, good waste management and the use of renewable energy. Social aspects are taken into account by involving local communities in managing tourist areas and paying attention to local wisdom in design. The economic aspect is considered by building small and medium businesses that support tourist areas, so that they can increase the income of the surrounding community. The design of this tourist area involves sustainable land use, so that it does not damage the surrounding environment. The land used to build tourist attractions such as buildings, parks and parking lots is also adapted to the surrounding environmental conditions, so that it does not disturb the life of local flora and fauna. Apart from that, the use of renewable energy such as solar panels is also carried out to meet electricity needs in tourist areas. The design of this tourist area also pays attention to local wisdom by using building materials and furniture produced by local craftsmen. Apart from that, local wisdom is also demonstrated through art and cultural exhibitions, as well as the use of regional specialties. By designing a sustainable Sewu Sambang tourist area, it is hoped that it can improve the quality of life of the surrounding community, increase community income, and preserve local culture and environment.

Red roses (Rosa damascena Mill.) are known to contain active compounds such as flavonoids, tannins, and vitamin C, which have potential antioxidant and anti-inflammatory properties. However, the utilization of rose flower waste after extraction remains limited. This study aims to formulate and evaluate gel preparations based on red rose extract and post-extraction rose flower waste as an innovation in natural-based topical formulations. This research is an experimental laboratory study using a post-test only design. Three concentration variations were formulated for both the extract (F1, F2, F3) and rose flower waste (F4, F5, F6) using HPMC as the gel base. Physical evaluations included organoleptic testing, homogeneity, pH, adhesion, spreadability, and viscosity. Data were analyzed descriptively and statistically using the Kruskal–Wallis test to determine the effect of concentration variation on physical parameters. All formulations showed good organoleptic and homogeneity results. The pH values were within the safe range for skin (4.75–5.92). Adhesion times met the criteria of >1 second, with a tendency to increase alongside higher concentrations of active ingredients. Spreadability fell within the acceptable range (3–5 cm), decreasing as viscosity increased. The viscosity values ranged from 20,150 to 20,182 cps. There was a significant effect of concentration variation on pH (p < 0.05), adhesion in extract-based gels (p = 0.021), and spreadability in waste-based gels (p = 0.024). In conclusion, gel preparations made from red rose extract and its waste can be successfully formulated with good physical stability and meet standard criteria for topical formulations. Rose flower waste has potential as an alternative active ingredient in the development of natural-based gel products.

The use of Cr (Chromium) in industry and daily life produces toxic waste harmful to humans and the environment. This study aims to evaluate the effectiveness of activated carbon from corn cobs as an adsorbent for Cr(VI) heavy metal. Corn cobs, which contain 40–44% cellulose, were carbonized at 500°C using 6% sodium carbonate and characterized with an IR spectrophotometer. Adsorption tests were conducted by varying pH and contact time to determine optimal conditions. FTIR results revealed functional groups such as C≡C stretch, C=C=C stretch, and C–O bend. After activation, O–H groups appeared, indicating the presence of aromatic compounds, which are typical in activated carbon. The optimum pH for Cr(VI) adsorption was pH 4, with an adsorption rate of 65.35%. The optimum contact time was 60 minutes, resulting in 3.2% Cr(VI) adsorbed and a maximum adsorption capacity of 0.089 mg/g. In conclusion, corn cobs are a promising, eco-friendly, and effective natural material for adsorbing Cr(VI) heavy metal ions.

Coal is an organic mineral from ancient plant remains that settles and goes through physical or chemical processes over a period of up to millions of years. Coal is used as a source of steam-powered electrical energy through combustion which produces fly ash waste. fly ash contains various chemical materials such as SiO2; Al2O3; Fe2O3. The potential chemical content makes fly ash which can be used as an adsorbent for heavy metals and dyes by forming silica xerogel. To increase the silica oxide content in fly ash, a washing process is carried out with various solvents. Research on the adsorption of methylene blue dye using silica xerogel from fly ash with variations in contact time. The results showed that silica xerogel from fly ash was able to adsorb methylene blue dye at a contact time of 90 minutes. Adsorption kinetics follows a pseudo second order model with an R2 value that is better than pseudo first order. It can be seen that the R2 value respectively shows a linear regression of 0.703 for pseudo first order and 1 for pseudo second order.

The Community Service Program (KKN) of the Faculty of Economics, UNKRIS, aims to raise awareness and change behavior among the community in Pondokgede sub-district regarding the environment, starting with the household environment in handling organic and inorganic waste through composting and the use of Biopori Infiltration Pits (LRB), waste banks, and greening for Green Open Spaces (RTH). The method used in this study is qualitative analysis. Before the KKN FE UNKRIS activities were implemented, several steps were taken to ensure the smoothness and effectiveness of the program, including preparation, implementation, and evaluation. Overall, the KKN FE UNKRIS program in the environmental conservation movement and its implementation in Pondokgede sub-district has had a positive impact on accelerating the development of Pondokgede sub-district, as evidenced by the improvement in community behavior toward the environment and the level of community satisfaction with the KKN FE UNKRIS program. The implications of this KKN program include the need for continuous monitoring to ensure that community awareness of a clean and healthy environment continues to increase. Additionally, the program should be continued until the stage of utilizing the results of waste processing generated by each community in Pondokgede.

Banana blossoms are a part of banana plants (Musa paradisiaca) that are often underutilized and considered agricultural waste. However, banana blossoms have significant potential as an alternative food source with high nutritional value. This study aims to analyze the nutritional content of banana blossoms, develop optimal processing methods, and evaluate their economic potential. The methods used include laboratory experimental approaches for proximate analysis, organoleptic tests for sensory evaluation, and cost analysis calculations for economic assessment.The research findings indicate that banana blossoms contain high fiber (5.7 g/100g), moderate protein (1.6 g/100g), low fat (0.3 g/100g), and are rich in calcium (50 mg/100g), potassium (553 mg/100g), and antioxidants. The optimal processing method was a combination of initial boiling followed by stir-frying, which preserved 87% of the nutrients and produced the best sensory profile. Product development, including banana blossom floss, chips, and flour, demonstrated high consumer acceptance (>70%) with a profit margin ranging from 35-55%.This study concludes that banana blossoms have great potential as a sustainable alternative food source with high nutritional value and promising economic prospects. Utilizing banana blossoms can contribute to food security, the diversification of functional food products, and the empowerment of community-based economic development. Therefore, further efforts to enhance the utilization of banana blossoms should be encouraged to support the sustainability of the food and economic sectors.

Watershed management requires active community participation as a key actor in ensuring environmental sustainability. This study aims to analyze the forms, levels, and factors influencing community participation in the management of the Bone Bolango Watershed in Gorontalo Province. The method used is a descriptive qualitative approach supported by quantitative data from questionnaires distributed to 45 respondents. The results show that 75.6% of respondents are unaware of watershed programs, and only 24.4% have been involved in the planning stage. In the implementation stage, participation reaches 53.3%, mainly in reforestation and waste management activities. About 48.9% are aware of the evaluation process, but only 40% consider it transparent. Some community members (44.4%) perceive economic benefits, especially from planting productive trees. Educational activities are considered effective by 71.1% of respondents, although participation remains limited. The Bone Watershed Forum is viewed as strategic, yet community involvement needs to be strengthened. Enhancing local institutional capacity, transparency, and cross-sector collaboration is essential to improving sustainable community participation in watershed management.

The socialization of environmental ethics and environmental health awareness in children is a strategic step in forming a generation that cares, is responsible, and oriented towards the sustainability of natural resources. Children, as a growing age group, have great potential to internalize environmental values and apply them consistently into adulthood. This socialization activity was carried out in the elementary school environment with an interactive lecture and group discussion approach, designed to encourage active participation and deep understanding. The main goal of the activity is to increase children's environmental literacy, including understanding the importance of maintaining cleanliness, managing waste, avoiding pollution, and maintaining the health of the surrounding environment. The results of the evaluation showed a significant increase in students' knowledge about environmental and health issues, as well as a positive attitude towards environmentally friendly practices. Students show high enthusiasm during the activity, which is reflected in active involvement in discussions and commitment to implementing behaviors that support environmental sustainability. This socialization has proven to be effective in fostering environmental awareness and ethics from an early age, which is an important foundation for sustainable development. By equipping children with environmental knowledge and values, it is hoped that they can become agents of change in their respective communities. This kind of activity needs to be carried out continuously and integrated into the basic education curriculum, so that the impact can be wider and more sustainable. School-based socialization is a relevant and strategic approach in shaping a culture of environmental care in the future.

The purpose of this community service is to educate the concept of Waste Bank, Green Economy, and Circulating Money to the community in Medan Belawan District. The specific target in this community service is that the Berkah Waste Bank workers in Medan Belawan Subdistrict know what Waste Bank, Green Economy, and Money Circulating to the Community in Medan Belawan Subdistrict, how to apply them to become household income opportunities, for example by becoming a new source of income from saving household waste that has been applied so that they can read the economic and environmental problems that occur. The materials presented in this community service are: what is a Waste Bank, Green Economy, and Circulating Money, how the impact of the Waste Bank on income from household waste. Which is related to improving household welfare through community knowledge / understanding related to Waste Bank, Green Economy, and Circulating Money. From this community service, the results show that with the existence of the Waste Bank, the application of the Green Economy concept can be seen from the collection of household waste easily collected at the Waste Bank, the community becomes a customer, has savings, withdraws money, then continues consumption shopping from the money, which means there is buying and selling activity in the market because there is money circulating in the community. This affects economic activity in the Medan Belawan sub-district.

Clean living behavior can be done by maintaining the sustainability of life can be done by reducing waste, saving energy, planting trees, and not littering. Waste sorting can be done by separating organic and inorganic waste into different trash bins. In addition, inorganic waste can also be separated again based on its type, such as plastic, paper, glass, and metal. Facilitates the process of collecting and processing waste for recycling. The Principles of Clean and Healthy Living Behavior (PHBS) recommend the use of waste sorting methods. The daily habits that we do to maintain personal and environmental cleanliness consist of this behavior. . Along with the emergence of various diseases that often attack children aged 6-12 years, PHBS in schools is a collection of behaviors carried out by students, teachers, and school residents based on learning so that they are able to independently prevent disease, improve their health. Implementation of better waste sorting practices can reduce the negative impact of waste on the environment, increase the efficiency of waste management, and provide long-term benefits for school residents. Schools are one of the places that have great potential to educate students about good waste management. SD Negeri 2 Kelusa has problems related to the lack of student knowledge about waste sorting and utilization, especially organic waste. Most students at SD Negeri 2 Kelusa still have limited understanding of the types of waste and how to process it. Most students do not realize and understand that organic waste can be reused, so they tend to throw it away with other waste.

The socialization of environmental ethics and environmental health awareness in children is a strategic step in forming a generation that cares, is responsible, and oriented towards the sustainability of natural resources. Children, as a growing age group, have great potential to internalize environmental values and apply them consistently into adulthood. This socialization activity was carried out in the elementary school environment with an interactive lecture and group discussion approach, designed to encourage active participation and deep understanding. The main goal of the activity is to increase children's environmental literacy, including understanding the importance of maintaining cleanliness, managing waste, avoiding pollution, and maintaining the health of the surrounding environment. The results of the evaluation showed a significant increase in students' knowledge about environmental and health issues, as well as a positive attitude towards environmentally friendly practices. Students show high enthusiasm during the activity, which is reflected in active involvement in discussions and commitment to implementing behaviors that support environmental sustainability. This socialization has proven to be effective in fostering environmental awareness and ethics from an early age, which is an important foundation for sustainable development. By equipping children with environmental knowledge and values, it is hoped that they can become agents of change in their respective communities. This kind of activity needs to be carried out continuously and integrated into the basic education curriculum, so that the impact can be wider and more sustainable. School-based socialization is a relevant and strategic approach in shaping a culture of environmental care in the future.