Produktivitas merupakan salah satu indikator performansi suatu perusahaan. Pada tahun 2018, sebuah perusahaan botol minuman di daerah Banten kesulitan mencapai target produksi jika dibandingkan dengan tahun-tahun sebelumnya. Kondisi ini menyebabkan produktivitas perusahaan secara keseluruhan mengalami penurunan. Penelitian ini bertujuan untuk mengevaluasi penurunan produktivitas yaitu dengan mengukur nilai produktivitas yang didasarkan pada 3 kriteria yaitu kriteria efisiensi produksi, kriteria efektivitas, kriteria jam kerja mesin. Metode yang digunakan adalah Objective Matrix (OMAX), dengan langkah penentuan kriteria, perhitungan rasio, perhitungan interpolasi nilai matriks, penetapan sasaran, penentuan bobot dan pembentukan matriks. Nilai produktivitas pada tahun produksi 2018 tertinggi terjadi pada periode 7 dengan nilai 455,7 sedangkan nilai produktivitas terendah terjadi pada periode 1 dengan nilai 196,35. Kriteria yang kurang memberikan kontribusi terhadap produktivitas dan perlu diperbaiki adalah kriteria efisiensi produksi karena nilai kriteria menunjukkan kinerja dibawah standar. Sedangkan kriteria efektivitas dan kriteria inferensial (jam kerja mesin) menunjukkan nilai yang cenderung baik. Kualitas dan efisiensi pemakaian bahan baku mempunyai peranan penting untuk meningkatkan produktivitas pada rasio 3 dan menciptakan sistem produksi yang efisien.
Kuliah kerja masyarakat (KKM) years 2019 raised the subject of community empowerment through the development of creative economy. Most of student do not have enough knowledge in the determination of the work program to be applied in the community activities in the kuliah kerja masyarakat (KKM), no shortage of waste paper, the local currency must be entrepreneurs on college students in utilization of waste as yet there is no. Objectives of the activities devotion through knowledge sharing to students through the utilization of waste paper to become how to make handicrafts including providing knowledge and skills and to improve entrepreneurial interest through the use of waste paper to students. The importance of activites is knowledge sharing. Participants activities of are KKM students in kecamatan Cikeusal and kecamatan Ciomas. Activities started by observation this field to find the problems that arise implementation are the next stage of the preparation of materials and practice making handicrafts. The results are knowledge sharing that took place to students able to provide understanding as provisions in empowering community. Through the knowledge sharing, KKM students increase skill development have especially in any by elementary substance waste paper to handicrafts. The outer covering this activity is the product handicrafts with basic made waste paper that is tissue box
In this research, modification of Lampung and Bayah natural zeolites was carried out to increase the zeolite’s capacity as an ammonia adsorbent. Natural zeolite is modified by acid treatment using 6 M HCl and ion exchange using 1 M NH4NO3. The modification process continued with calcination at 500 °C for 4 h. X-ray fluorescence characterization shows changes in composition in the modified zeolites. The significant increase in the Si/Al ratio occurred in the modified zeolite with acid treatment that is 10.03 for Lampung natural zeolite HCl (LNZH) and 9.20 for Bayah natural zeolite HCl (BNZH). Surface area increases due to increasing Si/Al ratio. FTIR results indicate changes in the intensity of hydroxyl groups and pyrH+ as a result of the increase in total acidity of zeolites. The zeolites performance test proves that the Bayah natural zeolite has a higher ammonia adsorption capacity than Lampung natural zeolite. Ion exchange-modified zeolite has a higher ammonia adsorption capacity than zeolite modified with acid treatment.
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