Article Per Year (5 Year)
p-Index From 2020 - 2025
3.592
P-Index
This Author published in this journals
All Journal Jurnal Keteknikan Pertanian Tropis dan Biosistem Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Food Science and Technology Journal (Foodscitech) Jurnal Hilirisasi IPTEKS (JHI) Jurnal Teknologi Pertanian Andalas Jurnal Abdi Insani Warta Pengabdian Andalas: Jurnal Ilmiah Pengembangan Dan Penerapan Ipteks Andalasian International Journal of Social and Entrepreneurial Development
Nika Rahma Yanti
Departemen Teknik Pertanian Dan Biosistem Fakultas Teknologi Pertanian Universitas Andalas
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Dentistry Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Health Professions Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Mathematics Mechanical Engineering Medicine & Pharmacology Public Health Social Sciences Veterinary Other

Published : 23 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 6 Documents
Search
Journal : Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering)

 1 
Optimization of the Carbonization Parameter of Exhausted Coffee Husk (ECH) as Biochar for Pb and Cu Removal Based on Energy Consumption Aninda Puari; Rusnam Rusnam; Nika Rahma Yanti
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol 11, No 2 (2022): June
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jtep-l.v11i2.242-252

Abstract

Recent studies on agricultural waste as a potential precursor of biochar for heavy metals removal from aqueous solution had not considered exhausted coffee husk (ECH) as the potential one. It is well-known that the carbonization process influences the removal performance of biochar, particularly removal efficiency (RE). However, previous studies rarely considered the energy consumption during the carbonization process. The major objective of this study is to investigate the optimum carbonization parameter on ECH biochar for removal of ion Pb and Cu from economic stand point. The ECH biochar was produced at the different heating temperature (300 – 600°C) and heating time (30 – 120 minutes). In regard to specific cost of bio-sorption, the results showed that 500°C was the optimum heating temperature of ECH biochar for the Pb removal, while 600°C was the optimum one for the Cu removal. Furthermore, the heating time experimental outcomes suggested that the optimum heating time were 30 minutes for Pb removal and 120 minutes done Cu removal.  Key words: Biochar, carbonization temperature, carbonization time, exhausted coffee husk, specific energy cost
Identification of Leading Commodity Areas in the Agricultural Sector Based on Historical Data and Land Suitability Delvi Yanti; Eri Stiyanto; Nika Rahma Yanti; Choiruddin Batubara; Ferdian Ariyadi
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol 12, No 3 (2023): September 2023
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jtep-l.v12i3.698-709

Abstract

In determining the utilization of the area, many government regulations have been made from the Central, Provincial, and Regional levels using a production data approach. However, it is getting different results with the same slice. The purpose of the study is to identify areas and determine priority agricultural commodities for food crops, horticulture, and plantation groups in Pasaman Regency. Analytical techniques used in Pasaman Regency are LQ analysis, shift share (SS) analysis, and field observation with a stakeholder approach. Based on the research, it is found that LQ and SS were able to determine the leading commodities of food crops, horticulture, and plantations in Pasaman Regency. The main food crop is corn, with the central development area in Tigo Nagari District. The superior horticultural crops and their development areas are chilies in Panti District and mangoes in Mapat Tunggul. The main plantation crop is rubber in a central development location in South Rao District. Keywords: Featured commodities; Historical data; Production; Land suitability; Pasaman  
Application of Agro-industrial Solid Waste as Biochar for Iron (II) Removal from Aqueous Solution Rusnam Rusnam; Nika Rahma Yanti; Aninda Tifani Puari; Nurmala Sari
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol 13, No 1 (2024): March 2024
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jtep-l.v13i1.155-164

Abstract

In recent years, various industrial activities have introduced a high concentration of iron in the waterbody which causes serious problem to environment. This paper proposed the application of Exhausted Coffee Husk (ECH) as the biosorbent (BS) for removing iron (Fe) (II) in the aqueous solution. The ECH was carbonized into biochar before performing biosorption of the heavy metal ion. The effect of carbonization temperature, time and rate on the performance of the ECH biochar for removing Fe (II) were evaluated. The percentage of removal efficiency (RE) and the capacity of biosorption (mg/g) were considered as the determining parameters. The pyrolysis temperature was varied in a range of 200-600 °C with 50 °C of interval, while the time was in between 1h – 3h with a n interval of 0.5 h, and the temperature gradient of 5 – 25°C/min. The results showed that the temperature had a significant effect on the properties of the ECH biochar as BS for Fe (II). The temperature of 550 °C, at 1.5 h of time and 25 °C/min was chosen as the suggested carbonization temperature of biochar from ECH for biosorption of Fe (II).  Keywords:  Agro-industrial solid waste, Biosorption,  Carbonization, Exhausted coffee husk (ECH), Heavy metal.   
Biosorption Performance of Biochar from Exhausted Kahwa Coffee on Cadmium Removal Under Various Operational Parameters Nika Rahma Yanti; Aninda Tifani Puari; Frisca Lora Amalya; Rusnam Rusnam; Rahmi Awalina
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol 14, No 3 (2025): June 2025
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jtep-l.v14i3.764-771

Abstract

The primary goal of this study was to investigate the biosorption performance of biochar derived from exhausted kahwa coffee (EKC) on removing heavy metal ion, Cd²⁺ in the solution. The operational parameters, for instance pH, dosage and contact time, were varied in a certain range and the efficiency and the capacity of removal were determined. The pH was in a range of 5 – 11, while the biochar dosage in a range of 0.075 – 0.15 g and the contact time was in between 30 – 180 minutes. The batch biosorption test showed that the EKC biochar had higher removal performance in alkaline condition, with a proposed pH of 10. Meanwhile, the applied dosage showed that addition of 0.1 g EKC biochar was more effective than adding more dosage. Furthermore, the batch experiments showed that 60 minutes of biosorption process resulted in more effective removal compared to the longer biosorption time. According to the ANOVA analysis on the three conditions, it was shown that the pH and contact time had significant effects on the removal performance of EKC biochar on cadmium ion in the solution.  Keywords: Biochar, biosorption, Exhausted kahwa coffee, Heavy metal ion, Operational parameters.
Application of Agro-industrial Solid Waste as Biochar for Iron (II) Removal from Aqueous Solution Rusnam, Rusnam; Yanti, Nika Rahma; Puari, Aninda Tifani; Sari, Nurmala
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol. 13 No. 1 (2024): March 2024
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jtep-l.v13i1.155-164

Abstract

In recent years, various industrial activities have introduced a high concentration of iron in the waterbody which causes serious problem to environment. This paper proposed the application of Exhausted Coffee Husk (ECH) as the biosorbent (BS) for removing iron (Fe) (II) in the aqueous solution. The ECH was carbonized into biochar before performing biosorption of the heavy metal ion. The effect of carbonization temperature, time and rate on the performance of the ECH biochar for removing Fe (II) were evaluated. The percentage of removal efficiency (RE) and the capacity of biosorption (mg/g) were considered as the determining parameters. The pyrolysis temperature was varied in a range of 200-600 °C with 50 °C of interval, while the time was in between 1h – 3h with a n interval of 0.5 h, and the temperature gradient of 5 – 25°C/min. The results showed that the temperature had a significant effect on the properties of the ECH biochar as BS for Fe (II). The temperature of 550 °C, at 1.5 h of time and 25 °C/min was chosen as the suggested carbonization temperature of biochar from ECH for biosorption of Fe (II).  Keywords:  Agro-industrial solid waste, Biosorption,  Carbonization, Exhausted coffee husk (ECH), Heavy metal.   
Biosorption Performance of Biochar from Exhausted Kahwa Coffee on Cadmium Removal Under Various Operational Parameters Yanti, Nika Rahma; Puari, Aninda Tifani; Amalya, Frisca Lora; Rusnam, Rusnam; Awalina, Rahmi
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol. 14 No. 3 (2025): June 2025
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jtep-l.v14i3.764-771

Abstract

The primary goal of this study was to investigate the biosorption performance of biochar derived from exhausted kahwa coffee (EKC) on removing heavy metal ion, Cd²⁺ in the solution. The operational parameters, for instance pH, dosage and contact time, were varied in a certain range and the efficiency and the capacity of removal were determined. The pH was in a range of 5 – 11, while the biochar dosage in a range of 0.075 – 0.15 g and the contact time was in between 30 – 180 minutes. The batch biosorption test showed that the EKC biochar had higher removal performance in alkaline condition, with a proposed pH of 10. Meanwhile, the applied dosage showed that addition of 0.1 g EKC biochar was more effective than adding more dosage. Furthermore, the batch experiments showed that 60 minutes of biosorption process resulted in more effective removal compared to the longer biosorption time. According to the ANOVA analysis on the three conditions, it was shown that the pH and contact time had significant effects on the removal performance of EKC biochar on cadmium ion in the solution.  Keywords: Biochar, biosorption, Exhausted kahwa coffee, Heavy metal ion, Operational parameters.
Co-Authors Aisman Aisman Amalya, Frisca Lora Aninda T. Puari Arlius, Feri Awalina, Rahmi Cesar Wellya Refdi Choiruddin Batubara Daimon Syukri Dian Pramana Putra, Dian Pramana Ekaputra, Eri Gas Emil Salim Eri Stiyanto Fadila, Salsa Nur Felga Zulfia Rasiana Ferdian Ariyadi Feri Arlius Fresmiyanti, Mia Frisca Lora Amalya Hervani, Dini Ifmalinda Indra Dwipa Ismed Ismed Juliandri, Irvan Khandra Fahmy Kurnia Harlina Dewi Laimnimitr, Napassawan Lukito, Chandra Mia Fresmiyanti MUHSANATI, MUHSANATI Novizar Nazir Nurdiyanto, M. Rizki Dhani Nurmala Sari Nurmala Sari Dewi Nurul Sa’adaturrifni Obel, Obel Pahlevi, Ilhan Pasha, Fadhil Kemal Rachmad Hersi Martinsyah Ramadhan, Nugraha Reni Koja Rera Aga Salihat Ririn Fatma Nanda Risa Meutia Ronaldi, Ronaldi Rusnam Rusnam Sa’adaturrifni, Nurul Salim, Emil Sari, Afrima SILVIA PERMATA SARI, SILVIA PERMATA Syafii, Habibi Ahmad Tjandra, M Agita Utama, Syahrul Wellyalina, Wellyalina Yanti, Delvi Yurnalis Yurnalis Yurnalis Yurnalis Zuldadan Naspendra