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Bambang Herry Purnomo
Teknologi Industri Pertanian, Universitas Jember, Jember
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology

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Analisis kepuasan konsumen terhadap kualitas layanan jaringan distribusi PT. XYZ Kabupaten dan Kota Probolinggo Andrew Setiawan Rusdianto; Bambang Herry Purnomo; Ida Bagus Suryaningrat; Dani Prasetyo
AGROINTEK Vol 18, No 2 (2024)
Publisher : Agroindustrial Technology, University of Trunojoyo Madura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21107/agrointek.v18i2.18414

Abstract

The need for fertilizer in the agricultural sector is critical as one of the keys to soil fertility. PT. XYZ is a company engaged in the fertilizer, chemical and agribusiness industries which has a network of authorized kiosks. A decrease in the number of kiosks in the distribution network area of Probolinggo Regency dan City may indicate that the services provided by the company still do not meet the expectations of consumers, resulting in a decrease in consumer satisfaction. This study aimed to determine the attributes of service quality, and the level of customer satisfaction based on the servqual attribute on service quality and compile recommendations for service improvement in the distribution network at PT. XYZ of Probolinggo Regency dan City. The analytical method used was the servqual method to identify and determine the condition of service quality with five servqual dimensions and the Importance Performance Analysis (IPA) method to obtain priority service attributes. The results showed that there were 3 service attributes has positive GAP and 23 service attributes had negative GAP values. The mapping used the Importance Performance Analysis quadrant obtained 5 service attributes in quadrant A (Top Priority), 7 service attributes in quadrant B (Maintain Service), 7 service attributes in quadrant C (low priority), and 7 service attributes in quadrant D (Excessive). Recommendations for improvements that can be made based on the attributes in quadrant A (Top Priority).
Analisis kepuasan konsumen terhadap kualitas layanan jaringan distribusi PT. XYZ Kabupaten dan Kota Probolinggo Andrew Setiawan Rusdianto; Bambang Herry Purnomo; Ida Bagus Suryaningrat; Dani Prasetyo
AGROINTEK Vol 18, No 2 (2024)
Publisher : Agroindustrial Technology, University of Trunojoyo Madura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21107/agrointek.v18i2.18414

Abstract

The need for fertilizer in the agricultural sector is critical as one of the keys to soil fertility. PT. XYZ is a company engaged in the fertilizer, chemical and agribusiness industries which has a network of authorized kiosks. A decrease in the number of kiosks in the distribution network area of Probolinggo Regency dan City may indicate that the services provided by the company still do not meet the expectations of consumers, resulting in a decrease in consumer satisfaction. This study aimed to determine the attributes of service quality, and the level of customer satisfaction based on the servqual attribute on service quality and compile recommendations for service improvement in the distribution network at PT. XYZ of Probolinggo Regency dan City. The analytical method used was the servqual method to identify and determine the condition of service quality with five servqual dimensions and the Importance Performance Analysis (IPA) method to obtain priority service attributes. The results showed that there were 3 service attributes has positive GAP and 23 service attributes had negative GAP values. The mapping used the Importance Performance Analysis quadrant obtained 5 service attributes in quadrant A (Top Priority), 7 service attributes in quadrant B (Maintain Service), 7 service attributes in quadrant C (low priority), and 7 service attributes in quadrant D (Excessive). Recommendations for improvements that can be made based on the attributes in quadrant A (Top Priority).
Kombinasi katalis FeSO4 dan H2O2 dalam penanganan air limbah agroindustri kopi menggunakan metode foto Fenton Elida Novita; Nurfila Sari Sudirman; Hendra Andiananta Pradana; Asma Afriliana; Soni Sisbudi Harsono; Bambang Herry Purnomo; Tjahjo Hartono
AGROINTEK Vol 19, No 4 (2025)
Publisher : Agroindustrial Technology, University of Trunojoyo Madura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21107/agrointek.v19i4.26362

Abstract

Wastewater production from the coffee agroindustry is generally brown. Melanoidin contents cause it and the high content of organic matter in coffee processing wastewater can impact water pollution. Turbid coffee processing wastewater can prevent sunlight from entering the water if it is channeled directly into water bodies without prior treatment. The research aims to improve the quality of coffee processing wastewater using the photo Fenton method, which combines catalyst reagents from H2O2 and FeSO4. The stages of the research consist of adjusting the pH of the process, combining H2O2 and FeSO4 dosages, irradiating using UV light, settling, and analyzing wastewater quality improvements with parameters i.e. Total Suspended Solid (TSS), turbidity, color, pH, and Chemicals Oxygen Demand (COD). The research results show that adding H2O2 and FeSO4 treatment in the Fenton photo can improve the quality of coffee processing wastewater. H2F1 treatment (H2O2 0.2 M and FeSO4 0.0015 M) is the best alternative for reducing TSS, turbidity, color, and COD parameters. The percentage reduction values for TSS, turbidity, color, and COD is sequentially 95.55; 98.40; 93.97; and 72.47 %. The combination of H2SO4 and FeSO4 catalysts can be used as an alternative tertiary method for coffee agro-industrial wastewater purification which is effective and efficient.
Co-Authors Asma Afriliana Dani Prasetyo Elida Novita Hendra Andiananta Pradana Ida Bagus Suryaningrat Nurfila Sari Sudirman Rusdianto, Andrew Setiawan Soni Sisbudi Harsono Tjahjo Hartono