Province X in Indonesia has a significant problem with trash that has been challenging to address. The Environment Agency therefore desires to construct an inorganic Trash Management System. The Environment Agency has four potential locations with various capacities. The purpose of this research is to locate a trash treatment system's best possible site and allocate each TPS that is less than 30 km and more over 30 km from the chosen system, respectively, to ensure that the overall distance traveled is as little as possible. There are four possible locations, and it required to select three of them. This study use the LINGO 18.0 software to solve the Capacitated Maximum Covering Location Problem (CMCLP) approach. Distance parameters used by CMCLP are split into two stages. The first stage is to determine the location of the trash treatment system to be built and the allocation of trash and the amount of trash from each TPS using Mix Integer Programming. B is not chosen out of the options, which are A, B, C, and D. System A will receive 1,407,520 tons of trash totaling 24 TPS. System C receives trash from 147 TPS weighing 1,294,495 pounds. System D will receive trash weighing 819,142 tons from 88 TPS. The allocation of trash from TPS that are more than 30 km away takes place in the second stage. Three TPS are assigned to System A, and seven TPS are assigned to System D.

PT. GMT has a mission to deliver the products to the customer on time and high-quality products to improve services. Sometimes, the delivery of product delays caused by the raw materials delays or didn't meet specifications. Selection optimal suppliers of raw materials are one of the solutions. There are two factors must be considered for the selection of suppliers, qualitative factors and quantitative factors. In this study, for qualitative factors, based on the criteria needed by PT GMT. This research produces three Linear Programming models, first: a qualitative objective function that will be maximized called the Total Value of Purchase (TVP). TVP is an integration of the Analytical Hierarchy Process (AHP) and Mix Integer Programming Integration. Second, the quantitative objective function for the procurement cost of raw materials, which is called the Total Cost of Purchase (TCP). The third is to optimize qualitative and quantitative simultaneously using the Goal Programming method. The selection of suppliers based on TVP the total value is 97.25, and the total procurement cost is Rp. 36,914,000, based on TCP, the total value is 89.14, and the total of procurement cost is IDR 31,356,000, while based on Goal Programming, the total value is 93.18, and the total of procurement cost is IDR 32,621,000. PT GMT has been able to determine the optimal supplier based on the policies set.

The government livestock carrier cruise program is a dedicated program to improve the supply chain management of livestock and the ultimate goal is selfsufficiency of beef in 2026. This carrier has one fleet with the capacity of 500 cows and sails through 8 ports regularly. The island of Nusa Tenggara are the local producers for the livestock carrier cruise which is an area of provincial surplus of beef. For the future the government plans to add more ships to the armada from the current one fleet to six fleets of livestock carrier cruises. The current livestock carrier cruise program has not been optimal in shipping cows to the consumer area. This is caused by the limitation of number of fleet and theexisting route that the livestock carrier has to sail through has created some obstacle to maximizing the number of cows to be distributed. This research aims to optimise this carrier cruising route with criteria including having high supplied beef percentage rate and having the most minimum cost. This optimisation problem solved by genetics algorithm methid and develop twodifferent scenarios that suggest alternatives for an optimal route. To make things easier, a computerized program with genetics algorithm method for a livestock carrier cruise optimization network are designed. The outcome of this research is a proposed optimised route on scenario 1 with total cost of Rp 443,306,533.26, and total load of 1,374 cows. As for the future to add five ships, the conditions are met by using the results of the second scenario with total cost of Rp 1,321,505,850.62, total load of 3416 cows and the route network for six ships

Mom’s Farm adalah sebuah usaha penanaman sayuran organic yang merupakan sebuah program pengabdian masyarakat yang dilakukan dan dinaungi oleh Fakultas Teknik Universitas Katolik Indonesia Atma Jaya dalam bidang penanaman tanaman hidroponik dan urban farming yang bekerja sama dengan Desa Sampora khususnya Kampung Nagrek. Dalam menajalankan roda usaha, mom’s farm mengalami kendala dalam menyalurkan produk kepada konsumen. Pendistribusian hasil panen yang belum jelas dan maksimal akan menyebabkan para petani di Mom’s Farm dirugikan karena kurang efektif dan efisiennya sistem pendistribusian hasil panen sehingga diduga akan mengakibatkan terjadinya kurangnya pendapatan yang diterima petani. Maka dari itu perlu dilakukan pembinaan pemasaran produk lebih lanjut dimana dalam hal ini adalah Pendampingan Pemasaran Mom’s Farm dengan Aplikasi Digital Marketing seperti Grab dan Tokopedia. Diharapkan dengan diberikannya pendampingan mengenai pemasaran produk secara online akan menarik pembeli yang lebih lagi bagi usaha Mom’s Farm. Sehingga selain mendapat konsumen secara offline seperti yang sudah ada, namun juga bisa menjangkau konsumen baru yang lebih luas.

This time, rubbish is a very serious environmental problem for the people of Kampung Baru, Sampora Village, Tangerang. The increase in population results in an increase in the amount of rubbish. According to data, rubbish production in Tangerang in 2020 reached 22,873 tons, while the rubbish handled was only around 937 tons (4%).This problem needs to be solved immediately. Rubbish generated by households can be in the form of organic or inorganic. If rubbish is not managed properly, it can damage the surrounding environment.The method   used to solve the problem of organic rubbish can be done through bioconversion of organic rubbish into maggot.Organic rubbish is often considered safe because it is easily biodegradable, even though organic rubbish has the potential to damage the environment, This method has advantages, because during the bioconversion process it does not cause unpleasant odors Bioconversion of organic rubbish can be a rubbish management solution that can be offered to the residents of Kampung Baru..Every 1 kg of maggot requires 2 kg of organic rubbish/hour as food. The speed of maggot using organic rubbish  as feed can be an alternative to reduce the amount of organic rubbish.Maggot that is ready to be harvested has a very high protein content, so it can be used as feed for catfish or  poultry.Catfish fed with maggot as feed, at the age of 100 days, each kilogram contained 6 catfish, while catfish fed only with pellets, at the age of 100 days, each kg contained 7-8 catfish. Thus maggot can increase the weight of catfish significantly.In addition, maggot can reduce pellet consumption by up to 75 percent, so it can help catfish farmers in saving feed costs.Saat ini sampah merupakan masalah lingkungan yang sangat serius bagi masyarakat Kampung Baru, Desa Sampora, Tangerang. Pertambahan jumlah penduduk mengakibatkan pertambahan jumlah sampah. Menurut data produksi sampah di Tangerang pada tahun 2020 mencapai 22.873 ton, sedangkan sampah yang tertangani hanya sekitar 937 ton (4%). Permasalahan ini perlu segera dicari solusinya. Sampah  yang dihasilkan oleh rumah tangga dapat berupa sampah organik maupun anorganik. Jika sampah tidak dikelola dengan baik, maka sampah dapat merusak lingkungan sekitar. Sampah organik sering dianggap aman karena mudah terurai, padahal  sampah organik memiliki potensi untuk merusak lingkungan.Metode yang digunakan untuk memecahkan permasalahan sampah organik dapat dilakukan melalui biokonversi sampah organik menjadi maggot. Metode ini mempunyai kelebihan, karena selama proses biokonversi tidak menimbulkan bauyang tidak sedap. Biokonversi sampah organik dapat menjadi  solusi pengolahan sampah yang dapat  ditawarkan kepada penduduk Kampung Baru, Setiap 1 kg maggot membutuhkan 2 kg sampah organik/jam sebagai makanannya. Kecepatan maggot menggunakan sampah organik sebagai pakan, dapat menjadi alternatif untuk mereduksi jumlah sampah organik.  Maggot yang siap dipanen mempunyai kandungan protein yang sangat tinggi, sehingga dapat digunakan sebagai pakan lele atau ternak unggas lainnya. Lele  yang diberi maggot sebagai pakan, pada usia 100 hari, setiap kilogram berisi 6 ekor lele, sedangkan lele yang hanya diberi pakan pelet, pada usia 100 hari,setiap kg berisi 7-8 ekor lele. Dengan demikian maggot dapat meningkatkan berat lele secara signifikan. Selain itu maggot dapat mengurangi konsumsi pelet sampai 75 persen, sehingga dapat membantu peternak lele dalam menghemat biaya pakan.