Claim Missing Document
Check
Articles

Found 5 Documents
Search

Pengaruh Penambahan Sodium Hipoklorit Dalam Analisa Amonia Air Secara Fenat Haspiadi Haspiadi; Kurniawaty Kurniawaty; Fitriani Fitriani
Jurnal Riset Teknologi Industri Vol 4 No 8 Desember 2010
Publisher : Balai Riset dan Standardisasi Industri Samarinda

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1121.222 KB) | DOI: 10.26578/jrti.v4i8.1468

Abstract

The research has been conducted to study the effect of the addition sodium hypochlorite on the ammonia testing of water and waste water. This research was investigated the effect of excess of sodium hypochlorite  that added in to the sample has high turbidity. Sodium hypochlorite  solution to reduce turbidity was used at various volume: 25 mL, 30 mL, 35 mL, 40 mL, 45mL, 50 mL, 55 mL,60 mL.  The analysis   method according to SNI 06- 6989.30-2005, Methode of Amonia Testing with Spektrofotometer in water and waste water.The result of the experiment indicate   that sodium hypochlorite was added more than arranged in SNI 06-6989.30-2005  can effect  to the result of actual ammonia contain in the water semple.The maximum of sodium 'hypochlorite recommended to used in the sample high turbidity is 40 mL in 100 mL alkalin citrate solution. 
Pemanfaatan Limbah Padat Abu Cangkang dan Serat Kelapa Sawit dari Boiler untuk Pembuatan Bata Beton Ringan Haspiadi Haspiadi; Kurniawaty Kurniawaty
Jurnal Riset Teknologi Industri Vol 9 No 2 Desember 2015
Publisher : Balai Riset dan Standardisasi Industri Samarinda

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (9441.382 KB) | DOI: 10.26578/jrti.v9i2.1710

Abstract

Research of  the utilization solid waste of palm oil fuel ash from boiler as row materials  for manufacturing light concrete brick has been conducted. The main objective of this study is to investigate the potential use solid waste of palm oil fuel ash from palm oil mill boilers as row materials for manufacturing light concrete brick has recently attracted for an alternative environmentally sustainable application. In this study, light concrete brick made with various proportions of palm oil fuel ash from palm oil mill boilers and sand were fabricated and studied under laboratory scales. Percentage of palm oil fuel ash of 0% as a control,  10%, 20%, 30%, 40%, 50%, 60%, replacement  sand, wheras others materials such as Portland cement, lime, gypsum, foaming agent and aluminium with the numbers constant. The quality of light concreate brick   were applied followed by the compressive strength test, density and water absorption capacity. The study discovered that the compressive strength for all composition meet the recommended value to light structural of 6.89 MPa as prescribed in SNI 03-3449-2002. In the same manner density of light concrete brick for all proportion under the maximum density recommended value of 1400 Kg/m3 according to SNI 03-3449-2002. While water absorption capacity of increased by the increasing use of ashes. Therefore, palm oil fuel ash from boiler can be used as raw material for the light concrete brick which is  environmental friendly because using solid waste and also an alternative handling solid waste.ABSTRAKPenelitian pemanfaatan limbah padat abu cangkang dan serat kelapa sawit dari boiler sebagai bahan baku pembuatan bata beton ringan telah dilakukan. Tujuan dari penelitian ini adalah pemanfaatan limbah padat abu boiler berbahan bakar cangkang dan serat sebagai bahan pembuatan bata beton ringan sebagai salah satu alternatif pengelolaan lingkungan yang bekelanjutan. Dalam penelitian ini, bata beton ringan dibuat dengan berbagai komposisi abu boiler dan pasir yang diproduksi dalam  skala laboratorium. Persentase dari abu berturut-turut 0% sebagai kontrol, 10%, 20%, 30%, 40%, 50% dan 60% mensubtitusi pasir, sedangkan bahan lain yaitu semen, kapur, gypsum,  foaming  agent serta aluminium pasta dengan jumlah tetap. Mutu bata beton ringan yang diujikan adalah kuat tekan, bobot jenis dan daya serap air. Hasil penelitian menunjukkan bahwa kuat tekan untuk semua komposisi memenuhi batas minimum yang dipersyaratkan untuk stuktural ringan yaitu 6,89 MPa sesuai SNI 03-3449-2002. Demikian pula bobot jenis dari bata ringan yang dihasilkan masih dibawah dari batas maksimum yang direkomendasikan SNI 03-3449-2002 yaitu maksimal 1400 Kg/m3. Sedangkan daya serap air mengalami kenaikan dengan naiknya jumlah abu yang digunakan . Limbah padat abu boiler berbahan bakar cangkang dan serat sawit dapat dimanfaatkan sebagai bahan baku pembuatan bata beton ringan yang ramah lingkungan dengan memanfaatkan limbah dan menjadi salah satu alternatif pengelolaan limbah. Kata kunci :  Abu cangkang kelapa sawit,  bata beton ringan, bobot jenis,  daya serap air,  limbah,  kuat tekan
Pengaruh Produksi, PDB, dan Nilai Tukar terhadap Ekspor Karet Indonesia ke Korea Selatan Kurniawaty Kurniawaty; Zamzami Zamzami; Nurhayani Nurhayani
Jurnal Ekonomi Aktual Vol 2 No 2 (2022): Jurnal Ekonomi Aktual
Publisher : WIDA Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53867/jea.v2i2.63

Abstract

This study analyzes the effect of rubber production, GDP, and the exchange rate on Indonesia's exports to South Korea. The data used is secondary data in the form of time series data from 2002 to 2018. The data comes from Gapkindo, the Central Bureau of Statistics, and Bank Indonesia. Data were analyzed using multiple regression models. The analysis found that during the period 2002 to 2018, the average growth in rubber export volume was 9.2% per year, production was 5.4% per year, South Korea's GDP was 3.0% per year, and the exchange rate was 2.5%  per year. South Korea's GDP significantly affects Indonesia's rubber exports to South Korea, while rubber production and the exchange rate have no significant effect.
Penerapan Kebijakan Pendidikan Inklusi Di Tingkat Madrasah Ibtidaiyah Winda Ramayani; Sarah Puspita; Kurniawaty Kurniawaty; Chaty Suri Hasanah; Wismanto Wismanto
Concept: Journal of Social Humanities and Education Vol. 3 No. 2 (2024): Juni : Concept: Journal of Social Humanities and Education
Publisher : Sekolah Tinggi Ilmu Administrasi Yappi Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55606/concept.v3i2.1141

Abstract

Elementary schools with inclusive education programs pose challenges for principals and teachers in educational institutions. Inclusive education in elementary schools needs to receive more attention because elementary school students still need full attention from educators, along with the presence of students with special needs. Of course, achieving learning goals is not easy. The aim of this research is to observe and describe the phenomena that occur during the implementation of inclusive education in elementary schools. This research uses a qualitative descriptive method, analyzing the factors that support and hinder the implementation of inclusive education in elementary schools, thus concluding that teachers need to know more about the factors that support and hinder the implementation of inclusive education in Madrasah Ibtidaiyah. The results of this research show that educational service institutions and the community must work together to provide appropriate services to students in general and children with special needs to improve the quality of educational services in schools.
Social Work Environment and Employee Performance : the Mediating Role of Public Service Motivation, Work-Life Balance, and Work Capability in Polewali Mandar Ratih Purwati Tahir; Matalatta Matalatta; Baharuddin Baharuddin; Abdul Latief; Ansar Ansar; Kurniawaty Kurniawaty
Global Management: International Journal of Management Science and Entrepreneurship Vol. 2 No. 1 (2025): International Journal of Management Science and Entrepreneurship
Publisher : International Forum of Researchers and Lecturers

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70062/globalmanagement.v2i1.80

Abstract

This research investigates the relationship between public service motivation (PSM) and employee performance (EP) within public sector organizations. Utilizing a mixed-methods approach, the study analyzes quantitative data from employee surveys and qualitative insights from interviews with public sector employees. The findings reveal a significant positive correlation between PSM and EP, indicating that employees who are motivated by a desire to serve the public tend to exhibit higher performance levels. Additionally, the research identifies key factors that enhance this relationship, including organizational support, leadership styles, and job design. The study highlights the importance of fostering a motivating work environment to improve employee performance in the public sector. Based on these findings, recommendations for future research and practical implications for public sector management are provided, emphasizing the need for targeted training programs and employee engagement strategies. This research contributes to the understanding of how intrinsic motivations can drive performance outcomes in public service settings.