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Surabaya as the second-largest city in Indonesia, faces serious challenges in waste management with daily waste generation reaching 1,800.05 tons in 2023, exceeding the capacity of Benowo landfill of 1,400 tons per day. Responding to this excess of 300 tons of daily waste, the Environmental Agency (DLH) of Surabaya City initiated the Zero Waste Village program. This program aims to increase public awareness about environmental cleanliness and waste management, implemented through collaboration between DLH and students from UPN Veteran East Java. The methods used include waste banks, composters, takakura, and processing into ecoenzymes. The program stages include sampling determination, initial waste weighing, intensive socialization, and final weighing. The results are encouraging, with a significant reduction in waste generation to an average of 0.19 kg per day per person after socialization. This success demonstrates the program's effectiveness in changing community behavior and reducing waste volume, providing hope for more sustainable waste management in Surabaya and reducing the excessive burden on the Benowo landfill.

The waste piles in the landfill pose a higher environmental hazard compared to the waste at its source due to the potential formation of leachate and air emissions. Consequently, waste management from the source is essential to minimize the amount of waste in the landfill. The waste management methods at each location typically vary based on the composition, characteristics, and quantity of waste present in that specific area. In this study, an analysis of waste piles at facility X was conducted through the process of sorting and weighing the waste during October 2023, with the objective of providing research findings that can be utilized to determine suitable waste management options for the location. The research revealed that the dominating composition of the waste consists of organic waste, with garden waste accounting for 55.95% and food residue comprising 10.75%. Composting was selected as the recommended alternative for waste treatment in the area. Garden waste, primarily composed of dry leaves, is suggested to be treated using the pile composting method, while food residue is suggested to be treated through a combination of Black Soldier Fly larvae biotechnology and Takakura composting.

Jumlah sampah meningkat seiring dengan peningkatan jumlah penduduk dan aktivitas ekonomi. Kota Tarakan yang berada di Provinsi Kalimantan Utara hingga saat ini juga dihadapkan pada persoalan sampah dan upaya yang sudah dilakukan adalah menggalakkan program sampah semesta (Semua Mesti Terlibat) dengan melibatkan masyarakat melalui program 3R (Reduce, Reuse, Recycle). Pengabdian ini bertujuan untuk mengolah sampah organik menjadi pupuk organik bernilai jual. Metode yang digunakan dalam pengabdian ini adalah penyuluhan dan praktik lapangan, masyarakat diajak untuk memisahkan sampah organik dari sampah lainnya dan melakukan pengolahan dengan cara mengumpulkan, memisahkan dan mengolah sisa-sisa sampah tersebut menjadi kompos. Dilanjut dengan tanya jawab dan diakhiri dengan umpan balik menggunakan form untuk mengetahui tingkat penyerapan materi oleh masyarakat. Diharapkan melalui pengabdian masyarakat ini dapat terbentuk kesadaran dan kepedulian masyarakat terhadap kualitas lingkungan di sekitarnya.  

Background: Waste that continues to accumulate every year is an unresolved environmental problem at the regional to global level. This problem can actually be overcome by applying good waste management according to its type (organic and inorganic). However, waste management is still rarely practiced in the community, for example for residents of Tegal Sari Village RT 1 and 3, Satui District, Tanah Bumbu Regency. The waste segregation, disposal, and processing system in the village is not optimal. Objective: Therefore, the Desa Relasi program aimed to increase the knowledge and awareness of residents in managing organic and inorganic waste through Takakura composting and inorganic crafts. Methods: The program was formed based on the results of problem priorities obtained during PBL through identification and analysis of health problems in the village by collecting secondary and primary data (with interviews and questionnaires). Results: Activities in the program are in the form of counseling, cadre debriefing, demonstration, and practice. The evaluation instruments used were pre-post test questionnaires (I and II), observation, and evaluation through chat. Based on the results of the knowledge test during counseling, 72.73% of residents experienced an increase in knowledge, 22.73% were stagnant, and 4.55% experienced a decrease (pre-post test I). While in post-test I - II, 77.72% experienced an increase, 18.18% did not experience an increase or decrease, and 4.55% experienced a decrease. Conclusion: There was an increase in knowledge in most participants regarding organic and inorganic waste management. Therefore, it is hoped that Tegal Sari Village residents will be able to apply good waste management so that it can produce use, sale and aesthetic value and advance the village.