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All Journal Jurnal Purifikasi Sutasoma : Jurnal Sastra Jawa JANITA Business, Entrepreneurship, and Management Journal
EKO SANTOSO
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Arts Humanities Chemical Engineering, Chemistry & Bioengineering Computer Science & IT Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Electrical & Electronics Engineering Environmental Science Languange, Linguistic, Communication & Media Other

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STUDI PEMANFAATAN CANGKANG KUPANG BERAS (Tellina sp) SEBAGAI BIOSORBEN UNTUK MENGOLAH AIR LIMBAH YANG MENGANDUNG ION LOGAM TEMBAGA (II) Eko Santoso
Purifikasi Vol 10 No 1 (2009): Jurnal Purifikasi
Publisher : Department of Environmental Engineering-Faculty of Civil, Environmental and Geo Engineering. Institut Teknologi Sepuluh Nopember, Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j25983806.v10.i1.161

Abstract

Tellina sp (kupang beras) shells which are available in large quantities in Sidoarjo-East Java were ground to produce biosorbent powder for removal of Cu(II) ions from synthetic waste solutions. The removal process of Cu(II) ions was carried out by dynamic adsorption method using a fixed bed column. A quantity of the shell powder was put into the column and Cu (II) ion solution was delivered through bottom-up flow to the column using a pump at a certain flow rate in room temperature. An effluent, which came out from the column, was collected at a certain time interval. The Cu (II) ion concentration in the effluent was measured using Atomic Absorption Spectrophotometer (AAS). This research was carried out using varied depth of the shell powder of 2 cm (7.01 g), 2.5 cm (8.11 g), and 3 cm (9.90 g) and varied flow rate: of 0.5 mL/minute, 1.0 mL/minute, and 1.5 mL/minute. This research resulted in adsorption capacity of the shell powder increased with the increase of bed depth. At 1 mL/minute of flow rate the adsorption capacities were of 19.14, 21.89, and 22.82 mg/g for 2, 2.5, and 3 cm respectively of bed depth. The adsorption capacity also increased with the increase of flow rate, i.e., 14.36, 21.89, and 22.39 mg/g for 0.5, 1.0, and 1.5 of flow rate for 2.5 cm of bed depth respectively. Service time (tb) and volume treated (Vb) for 10 % of Cu (II) ions in the effluent increased also with bed depth by correlation coefficient of 0.9998. At bed depth of 2 cm, 2.5 cm, and 3 cm at flow rate of 1.0 mL/minute the service time was 10.86, 16.41, and 21.73 hours at 0.65, 0.98, and 1.30 L of volume treated. At the initial stage of research, pH of influent is 4 and the final value of effluent after treated process of the column is 7. After the treatment process, the shell powder loaded Cu (II) ions were regenerated using 0.01 N of EDTA disodium solutions at pH 9. For biosorbent column of 2.5 cm bed depth at flow rate of 1.0 mL/minute needed 160 hours of service time or 9.6 L of EDTA solutions for column regeneration.
Analisis Perbandingan Struktural Cerbung "Kuburan Tanpa Tenger" Karya Margareth Widhy Pratiwi dengan Film Thailand "Alone" Dwi Anjani Wulan Ndari; Herlina Setyowati; Eko Santoso; Aris Aryanto
Sutasoma : Jurnal Sastra Jawa Vol 10 No 2 (2022): Sutasoma: Jurnal Sastra Jawa
Publisher : Jurusan Bahasa dan Sastra Jawa Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/sutasoma.v10i2.53816

Abstract

The purpose of this study is to describe the instrinsic elements of the serial story Kubur Tanpa Tenger and the Thailand film Alone, describe the comparison of themes in the serial story Kubur Tanpa Tenger with the Thailand film Alone, describe the comparison of the characterizations in the serial story Kubur Tanpa Tenger with the Thailand film Alone, and describe the comparison of the setting in the serial story Kubur Tanpa Tenger with the Thailand film Alone. The research method is descriptive qualitative. The data sources of this research are the serial story Kubur Tanpa Tenger by Margareth Widhy Pratiwi and the Thailand film Alone 2007. The data collection technique was obtained by the listening method followed by the note-taking technique. The data analysis technique used the diachronic comparison method. The results of the research are stories from the serial story Kubur Tanpa Tenger and the Thailand film Alone, which tells the life story of one twin sister who was terrorized by the spirit of the other twin after he died. The similarity of the contents of the two stories is what makes the intrinsic elements in the form of themes, characterizations and settings have similarities and differences, this is because these two stories come from different countries. Keywords: Comparative Literature; Serial; Films
PERAN BPD DALAM PENGEMBANGAN MSDM DAN POTENSI DESA DI DESA PLANDAAN, KEDUNGWARU TULUNGAGUNG Eko Santoso; Bondan Subagyo; Desi Rahmawati
JANITA : JURNAL PENGABDIAN KEPADA MASYARAKAT Vol. 4 No. 2 (2024)
Publisher : Lembaga Penelitian dan Pengabdian Masyarakat Universitas Tulungagung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36563/pengabdian.v4i2.1332

Abstract

The aim of establishing a swimming pool in Plandaan Village is to develop the potential of a tourist village through the construction of a swimming pool, considering that the swimming pool is a tourist destination that is popular with children and a comfortable place to play with the family. The existence of a swimming pool in Plandaan Village can meet the needs of the community, both within Plandaan Village and outside Plandaan Village City. Therefore, through the results of the Village Deliberation, the existence of the swimming pool in Plandaan village needs to be developed and utilized as a tourist area. This is none other than to develop the potential of the local village area. Apart from that, the swimming pool in Plandaan Village can also increase activities for young people to become a field of work and increase the income of the local Plandaan Village area, because it will also directly increase the cash of Plandaan Village. The results of developing the potential of the Plandaan Village area regarding the construction of a swimming pool can be collaboration and cooperation with school agencies for swimming sports activities. Apart from that, it is also a tourist area that needs to be developed and enlivened considering that the existence of this swimming pool is very strategic in the Plandaan Village area. However, the existing activities This swimming pool must also be managed professionally in order to attract more visitors, not only in the local Plandaan area, but also outside the village of Plandaan itself. Promotions and services must be improved to attract visitors who will come to the swimming pool. Also, the presence of clean bathroom facilities will attract future visitors.
THE INFLUENCE OF CAREER DEVELOPMENT, WORK MOTIVATION, AND COMPETENCE ON EMPLOYEE PERFORMANCE Eko Santoso; Tri Dewi Untari
BEMJ : Business, Entrepreneurship, and Management Journal Vol. 3 No. 2 (2024)
Publisher : Universitas Tulungagung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36563/bemj.v3i2.1351

Abstract

This study analyzes the influence of career development, work motivation, and competence on employee performance on CVs. Dimas Tulungagung and to determine the variables that have a dominant influence on employee performance at CV. Dimas Tulungagung. The usefulness of this study is that it can be used as a suggestion for CV. Dimas Tulungagung to determine the phase related to Human Resources. This is expected to contribute to decision-making related to Human Resources. This research is explanatory; the number of samples in this study is 70 employees. The regression analysis results show that career development, work motivation, and competence simultaneously significantly affect employee performance at CV. Dimas Tulungagung and the study's results show that competence dominates employee performance at CV. Dimas Tulungagung.
PENGARUH KELENGKAPAN SPAREPART DAN KELENGKAPAN STRUKTUR ORGANISASI TERHADAP KEPUASAN PELANGGAN DI AHASS HARI MOTOR 2 TULUNGAGUNG Budi Prasetyo; Eko Santoso; Aris Dwi Gunawan
BEMJ : Business, Entrepreneurship, and Management Journal Vol. 1 No. 1 (2022)
Publisher : Universitas Tulungagung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36563/bemj.v1i1.574

Abstract

Abstract The primary issue raised in this thesis is the relationship between customer satisfaction at Ahass Hari Motor 2 Tulungagung and the completeness of the organizationalstructure and spare parts inventories. This study employs quantitative research techniques,meaning that it involves numerical data that is statistically examined. This study used aminimum of 97 population samples, according to the Cochran formula. The analysis'sfindings indicate that the organizational structure's and the spare parts' variablecompleteness have a strong simultaneous and partial impact on customer satisfaction. AtAhass Hari Motor 2 Tulungagung, there is a very strong correlation or relationship betweenthe completeness of the organizational structure and the completeness of the spare partsinventory. Abstrak Pokok permasalahan yang dibahas dalam skripsi ini yaitu bagaimana pengaruh kelengkapan sparepart dan kelengkapan struktur organisasi terhadap kepuasan pelanggan diAhass Hari Motor 2 Tulungagung. Penelitian ini menggunakan metode penelitian kuantitatifyaitu penelitiannya menggunakan data yang bersifat angka-angka dianalisis melalauistatistik. Jumlah sampel dalam penelitian ini menggunakan rumus Cochran minimal 97orang dari populasi. Hasil analisis menunjukkan bahwa variabel kelengkapan sparepart dankelengkapan struktur organisasi berpengaruh signifikan secara simultan dan parsial terhadapkepuasan pelanggan. Korelasi atau hubungan antara kelengkapan sparepart dan kelengkapanstruktur organisasi dengan kepuasan pelanggan pada Ahass Hari Motor 2 Tulungagungsangat kuat.
ANALISIS FAKTOR-FAKTOR YANG MEMPENGARUHI MINAT BERWIRAUSAHA PADA MAHASISWA FAKULTAS EKONOMI UNIVERSITAS TULUNGAGUNG Eko Santoso; Latifatul Isro'iyah; Andrean Kresna Wahyudiantoro
BEMJ : Business, Entrepreneurship, and Management Journal Vol. 2 No. 1 (2023)
Publisher : Universitas Tulungagung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36563/bemj.v2i1.787

Abstract

It is common knowledge that education is linked to unemployment, particularly among educated workers, despite expectations that good education can provide human resources of high quality. Entrepreneurship education is one of the factors that has a substantial impact on students' entrepreneurial interest, according to Lestari and Wijaya (2012). In order to determine how much the factors that influence entrepreneurial interest in students at the Faculty of Economics at Tulungagung University influence that interest, the author will conduct this research using quantitative research methods. The population of this study consists of 74 students from the Tulungagung University's Faculty of Economics, including 40 males and 34 women. According to the author's research findings, income expectations, family environment, and entrepreneurship education do not interact. Students at Tulungagung University's Faculty of Economics have an increased interest in entrepreneurship as a result of receiving entrepreneurial education. The family environment has a favorable impact on the entrepreneurial interest of students at Tulungagung University's Faculty of Economics. Income expectations have no favorable impact on Tulungagung University's Faculty of Economics students' motivation in starting their own business. Keywords: entrepreneurship, entrepreneurship education, income expectation
Co-Authors Andrean Kresna Wahyudiantoro Aris Aryanto Aris Dwi Gunawan Bondan Subagyo Budi Prasetyo Desi Rahmawati Dwi Anjani Wulan Ndari Herlina Setyowati Latifatul Isro'iyah Mandela Setyoko Tri Dewi Untari