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Optimasi Dosis Koagulan Aluminium Sulfat Al2 (SO4)3 Pada Ipam PT Hanarida Tirta Birawa Sidoarjo Nursinta Abadiyah; Yayok Suryo Purnomo
Jurnal Kendali Teknik dan Sains Vol. 2 No. 3 (2024): Juli : Jurnal Kendali Teknik dan Sains
Publisher : Universitas Katolik Widya Karya Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59581/jkts-widyakarya.v2i3.3430

Abstract

In drinking water treatment plants, there is a coagulation unit that requires coagulant substances. Coagulant dosage determination can be done using the jartest method. By carrying out a jar test, the correct dose will be known so that the coagulation process runs well, and the use of coagulants can be optimized. This research was carried out by analyzing jartest results from the company's internal laboratory for one week with two variations in jartest times in one day. The raw water used comes from shipping rivers with a company production capacity of 500 l/second. The dosage of Aluminum Sulphate coagulant used in the field is 165 mg/l, while the jastest results show that the optimum dosage is 140 mg/l. This research is expected to provide scientific information regarding determining coagulant dosage at IPAM PT Hanarida Tirta Birawa which makes it easier for installation operators.
Sudut Ilmu Sebagai Upaya Meningkatkan Minat Baca di SDN Kejagan, Kecamatan Trowulan, Mojokerto Yanda Bara Kusuma; Febi Nour Amaliah; Roiisul Ibaad Aunillah; Bimo Putro Nusuantoro; Muhammad Gilang Zain Assalam; Zumrotul Rosyidah; Ika Yuliana Wati; Nursinta Abadiyah; Ifthar Ramadhana Wahyudi; Agustin Nur Awaliyah; Davina Nasywa Ardelia
Cakrawala: Jurnal Pengabdian Masyarakat Global Vol. 3 No. 3 (2024): Cakrawala: Jurnal Pengabdian Masyarakat Global
Publisher : Universitas 45 Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30640/cakrawala.v3i3.3062

Abstract

This study aims to increase the reading interest of students at SDN Kejagan in Trowulan District, Mojokerto. Based on library visit data in April 2024, it was recorded that the level of visits was very low, especially in the upper classes. The "Knowledge Corner" program was initiated by KKN-T Bela Negara students as an effort to increase students' literacy interest. This study uses a qualitative method with a descriptive approach. Data were obtained through interviews, observations, and questionnaires of grade 3 students, as well as secondary data from the library. The results of the study showed that the low reading interest was caused by inadequate library facilities and reading habits that had not yet formed. The implementation of the "Knowledge Corner" program includes preparing library decorations, implementing interactive literacy activities, and further evaluation. This program has succeeded in increasing students' enthusiasm for literacy activities, which is expected to have a positive impact on reading interest and visits to the library. The implications of this study emphasize the importance of the role of teachers and library managers in creating an environment conducive to reading and sustainable literacy.