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ERWAN ADI SAPUTRO
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International Journal of Eco-Innovation in Science and Engineering (IJEISE)
Published by Universitas Pembangunan Nasional Veteran Jawa Timur
ISSN : -     EISSN : 27218775     DOI : https://doi.org/10.33005/ijeise
Core Subject : Science, Engineering,
Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Engineering Industrial & Manufacturing Engineering Mechanical Engineering
International Journal of Eco-Innovation in Science and Engineering (IJEISE) covers all topics of Eco-Innovation in Science and technology related research from Chemical Engineering, Environment Engineering, Civil engineering, Industrial Engineering, Food Technology, Agrotechnology and others science and engineering field. IJEISE publish 2x a year (May and November).
Arjuna Subject : Teknik (semua kategori) - Teknik (Lain-Lain)
Articles 6 Documents
 1 
Search results for , issue "Vol. 1 No. 02 (2020): IJEISE" : 6 Documents clear
Designing Bkd Website Based In Industrial Engineering Department Of Universitas Pembangunan Nasional “Veteran” Jawa Timur Dwi Sukma Donoriyanto; Tranggono Tranggono; M. Wildan Kautsar
International Journal of Eco-Innovation in Science and Engineering Vol. 1 No. 02 (2020): IJEISE
Publisher : Engineering Faculty, University of Pembangunan Nasional Jawa Timur

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33005/ijeise.v1i02.20

Abstract

Lecturer Workload (BKD) is a portrait of the lecturer workload in the implementation of University’s Tri Dharma in the next semester. In college academic activities, the reporting of Lecturer Workload (BKD) is important because it is concerned with the productivity of lecturer’s performance. The lecturer workload is commensurate with a minimum of 12 credits and a maximum of 16 credits in each semester in accordance with academic qualifications. The Department of Industrial Engineering of UPN “Veteran” Jawa Timur has implemented a manual lecturer workload reporting system and indirectly the high potential obstacles to the evaluation process. So that in its application Lecturer Workload reporting (BKD) must be able to facilitate between lecturers, assessors and head of department in coordination. This research aims to produce Lecturer Workload Information System (BKD) effectively and efficiently. The design of this system uses the System Development Life Cycle (SDLC) method. From the results obtained, the output of this system is that lecturers report their performance online, assessors can verify files easily, and study programs can monitor lecturers' performance. It is hoped that the Lecturer Workload Information System (BKD) can help the Industrial Engineering Study Program of the East Java National Veterans Development University in conducting the lecturer workload reporting process (BKD)
Recovery of Phosphate and Ammonium from Dairy Cow Urine by Struvite Crystallization with Vertical Reactor Luluk Edahwati; Sutiyono; Rizqi Rendri Anggriawan
International Journal of Eco-Innovation in Science and Engineering Vol. 1 No. 02 (2020): IJEISE
Publisher : Engineering Faculty, University of Pembangunan Nasional Jawa Timur

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33005/ijeise.v1i02.23

Abstract

Excess phosphate (PO43-) and ammonium (NH4+) in wastewater can cause environmental damages, such as pollutants and eutrophication in water. Dairy cow urine is a dangerous liquid waste that contains high amounts of phosphate and ammonium. The removal of PO4 and NH4 components can be done by crystallizing them into struvite fertilizers. Struvite (MgNH4PO4.6H2O) is a mineral formed from magnesium, ammonium, and phosphate with the equimolar ratio. The crystallization process of struvite is carried out using a vertical reactor. MAP solution (magnesium ammonium phosphate) is prepared by reacting MgCl2, H3PO4, and dairy cow urine with MAP molar ratio of 1 : 1 : 1 and KOH 1N. The study run in pH 8; 8.5; 9; 9.5; 10 and temperature variations of 25, 30, 35, 40, 45˚C in vertical reactor continuously. The struvite precipitate was filtered and dried, it is analyzed by XRF to determine the struvite composition and SEM to determine the morphology of the struvite. The results showed that the best percentage of phosphate and ammonium was at 45˚C and pH 9.5, it was 33.2% and 27.9%.
Daun Dewa (Gynura Pseudochina (Lour) Dc) Jelly Candy Making with Addition of Gelling Agents (Alginate, Carrageenan, And Gum Arabic) in Various Concentrations Fesdila Putri Nurani; Pratiwi Eka Murliati; Dedin Finatsiyatull Rosida
International Journal of Eco-Innovation in Science and Engineering Vol. 1 No. 02 (2020): IJEISE
Publisher : Engineering Faculty, University of Pembangunan Nasional Jawa Timur

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33005/ijeise.v1i02.26

Abstract

Jelly candy is generally made from fruit juice with some hydrocolloid addition in order to the gelling formation. The characteristic of jelly candy is a clear and transparent appearance with chewiness in texture. To increase its functional value, jelly candy can be added with various ingredients, for example, the extract of Daun Dewa (Gynura Pseudochina (Lour) Dc). Daun Dewa (Gynura Pseudochina (Lour) Dc) contains some active components such as alkaloids, flavonoids, essential oils, saponins, and steroids, triterpenoids, and tannins, where these compounds show antioxidant activity. One parameter on jelly candy making was the gelling formation influenced by the hydrocolloid or gelling agent's existence. Some gelling agent that has been used in commercial jelly candy-like alginate, carrageenan and Gum Arabic. The combination of those gelling agents with various concentrations would give the different characteristics of jelly candy. This study aimed to observe the characteristic of jelly candy with the addition of gelling agents and determine the best treatment that most liked by the panelists. The concentration of gelling agents used in this study was 0, 2.5%, 5%, 7.5%, and 10% (w/v) with a single factor of Simple Completely Randomized Design (CRD). The data analyzed using ANOVA. Based on the result, the best treatment of Daun Dewa jelly candy was made with the addition of 7.5% carrageenan and 2.5% gum Arabic that has moisture content value of 16.742%, ash content 0.685%, reducing sugar 20.273%, total phenol 11.078 mg TAE / gr, pH 4.27, gel strength 46.3788 N, antioxidant 32.536%, and sensory evaluation covering 4.96 for color, 4.28 for aroma, 4.60 for texture, and 4.88 for taste.
A Manufacture of Phosphate Fertilizer from Cow Bones Waste: Phosphate Fertilizer N W Sari; F A Putri; D S Perwitasari
International Journal of Eco-Innovation in Science and Engineering Vol. 1 No. 02 (2020): IJEISE
Publisher : Engineering Faculty, University of Pembangunan Nasional Jawa Timur

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33005/ijeise.v1i02.27

Abstract

Cow bone waste was the fundamental problems that occur in several abattoirs (slaughterhouses) in Indonesia that untapped optimally. Intention of this research studied of making phosphate fertilizer from cow bone wasted by granulation process with the effect of concentration phosphoric acid and sulfuric acid to the quality of phosphate fertilizer. The process of making phosphate fertilizer was by preparation of cow bone waste until became into powder and filtered it with 80 mesh of sieve. Pan granulator ran with cow bone powder and sprayed with sulfuric acid-phosphoric acid solution according to specified variable. Then the results of granulation taken from a pan granulator and dried using an oven with a temperature of 70oC for 3 hours. The chemical composition of dried products were analyzed using XRF (X-Ray Fluorescence) analysis. Analysis results showed that phosphate fertilizer can be produced by cow bone waste deliver the highest P2O5 was 30.7% with addition H2SO4 5% and H3PO4 45%.
Effect of Hydrolysis time and Papain Concentration on Some Properties of Apple Snail (Pilla ampullacea) Hydrolysate Andre Yusuf Trisna Putra; Dedin Finatsiyatull Rosida; Anugerah Dany Priyanto
International Journal of Eco-Innovation in Science and Engineering Vol. 1 No. 02 (2020): IJEISE
Publisher : Engineering Faculty, University of Pembangunan Nasional Jawa Timur

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33005/ijeise.v1i02.31

Abstract

content and total peptide content were investigated in the non-farmed freshwater apple snail (Pila ampullacea) to understand its nutritional potential as alternative umami taste enhancer. Apple Snail samples with removed gut content were collected from a local snail non-farm in Surabaya City. Papain enzyme was used. The two variables, hydrolysis time (3, 6, 9, 12, 15, 18 h) and enzyme concentration (1%, 5%, 10%), was used to produce the apple snail hydrolysate. The result showed that total soluble protein was about 2.1%-7.3%, whereas total peptide content was 5.05-15.73mg/ml. The highest total soluble protein was achieved at 12 hour. Longer hydrolysis time significantly effect on total peptide content of apple snail hydrolysate.
Corrosion Inhibition of Carbon Steel Using Chitosan as an inhibitor in 3.5% NaCl Medium Lilik Suprianti; Dwi Hery Astuti; Sukamto; Khafid Ubay Ilyas; Ellyn Evina Ellys Simanjuntak
International Journal of Eco-Innovation in Science and Engineering Vol. 1 No. 02 (2020): IJEISE
Publisher : Engineering Faculty, University of Pembangunan Nasional Jawa Timur

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33005/ijeise.v1i02.32

Abstract

Carbon steel is a metal that is widely used for the construction of industrial and marine applications. Hence, seawater is one of the corrosive mediums due to its Natrium Chloride (NaCl) content as a strong electrolyte. One method to control the corrosion rate is by adding the inhibitor. Chitosan has been chosen as inhibitor corrosion because of non-poisonous and green material. Corrosion inhibition of carbon steel in chitosan inhibitor presence in 3,5% NaCl medium was studied using potentiodynamic polarization technique. This study aims to understand the effect of temperature and inhibitor concentration on carbon steel's corrosion behavior. This study also determined adsorption constant value of chitosan on the carbon steel surface. The corrosion rate has been analyzed by using potentiodynamic polarization. Firstly, carbon steel is prepared by cutting them in cuboid shape by dimensions 4cmx 1cm x 3mm. Secondly, a 3.5 % sodium chloride solution is prepared by dilute NaCl crystal into demineralized water. The next step is inhibitor preparation by dissolve chitosan powder in the acid solution. The corrosion rate is analyzed in different temperatures, various from 30-70oC, and chitosan concentration varied from 0 to 250mg/l. The results showed that chitosan is a promising corrosion inhibitor in sodium chloride medium. The inhibition efficiency at 30oC reaches 84.92% with a chitosan concentration of 250 mg/L.

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