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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 73 Documents
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Magnesium Recovery of Struvite Formation Based on Waste Salts (Bittern) with a Bulkhead Reactor Luluk edahwati; Sutiyono; Nikmatuz Zahra; Herdiana Septiani
International Journal of Eco-Innovation in Science and Engineering Vol. 1 No. 01 (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.v1i01.1

Abstract

Waste salt or bittern is the residual liquid from the salt formation which cannot be precipitated again but can be obtained from the washing water remaining in the purification process. Bittern has high economic value of mineral salts such as MgCl2, MgSO4, KCl, and Br2. The element Mg in bittern can be used as a mineral forming struvite because magnesium is one of the components needed in the formation of struvite. Crystallization of the formation of struvite minerals occurs in equimolecular concentrations of Mg 2+, NH4 + and PO43 - in an alkaline state. The column reactor is equipped with a bulkhead which functions as a stirrer inside the reactor and is assisted by incoming air. Struvite solution (MAP) reacted can be formed from phosphoric acid, ammonium hydroxide, and bittern or salt waste as a source of magnesium with a molar ratio of 2: 1: 1. The pH variations run in the range of 7 to 11 and the reactor inlet air velocity between 0.25-1.25 L/min in a closed column reactor that is operated continuously. The resulting dry sludge was analyzed by XRD method for mineral characterization, SEM to determine the morphology of the crystals and XRF to determine the composition of struvite mineral.
Tofu Factory Liquid Waste for Making Struvite with Canted Vertical Reactors Sutiyono; Luluk edahwati; Kartika Pratiwi; Achmad Fanani
International Journal of Eco-Innovation in Science and Engineering Vol. 1 No. 01 (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.v1i01.9

Abstract

Struvite is a white crystal, chemically known as magnesium ammonium phosphate hexahydrate (MgNH4PO4.6H2O). Tofu factory liquid waste is waste that can be reused because of its content. Tofu factory liquid waste can potentially pollute the environment. This research aimsto analyze the manufacture of struvite by utilizing the phosphate content contained in the liquid waste of tofu factories using vertical canted column reactors which can reduce environmental pollution due to liquid waste of tofu factories. This study uses a vertical canted column reactors by mixing anequimolar 1: 1: 1 MgCl2: NH4OH: H3PO4 solution. Struvite crystallization process operates at a temperature variation of 30°C,35°C,40°C,45.50°Cand a pH of 8, 9,10,11,12 by maintaining the air rate of 0.5 liters minute-1 and a MAP (Magnesium Ammonium Phosphate)flow of 56 ml minutes-1 as a whole. The crystallization process runs until a steady state conditionis reached. Then, the struvite crystals obtained were filtered and dried at room temperature for 24 hours. After that struvite crystals were analyzed using XRF, XRD, and SEM. The results of the study obtained the best phosphate conversion of 24.935% at 30°C and pH 8.
The Transportation and Storage Conformity Evaluation of Hazardous and Toxic Waste of Fertilizer Production : (A case Study in Industry X of West Indonesia) Aulia Nur Mustaqiman; Erland Aldi Hutta
International Journal of Eco-Innovation in Science and Engineering Vol. 1 No. 01 (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.v1i01.10

Abstract

Industry X is one of the sectors of the fertilizer and chemical industries that produce ammonia and urea. Their factory has a mass production that also makes them produce a huge amount of waste, especially Hazardous and Toxic Waste (B3 in Indonesian abbreviation). The resulting hazardous waste hereinafter referred to B3 Wastes, will then be managed under the applicable laws and regulations. The management of B3 wastes starts from the source and the producer of B3 wastes, temporary storage (TPS LB3 and TPS Fly Ash and Bottom Ash), waste labelling, and the generation of B3 wastes. This study aim (1) to recognize the condition of B3 in Industry X, (2) to identify kind of B3 waste in Industry X, and (3) to evaluate the operational of B3 packaging and labelling, The researchers will hold an observation, literature study, interview, and discussion as the data collection methods. Additionally, the analysis of the results and discussion of this study uses qualitative descriptions.
Solid Waste Management Practices at The Academic Institution: Current Situation and Strategic Plan Euis Nurul Hidayah; Imroatul Mufidah; Indah Fitriana Solichah; Okik Hendriyanto Cahyonugroho; Kindriari Nurma Wahyusi
International Journal of Eco-Innovation in Science and Engineering Vol. 1 No. 01 (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.v1i01.11

Abstract

Waste management is one of the actionsof environmental management for improving environmental quality. This study describes the waste management in the campus through improvement of operational techniques, starting from container, collection, and transportation. Case study was taken in the university, which the amount of waste generation is about 166.559 kg/day or 0.013 L/person/day. The waste collection system is designed to use individual disaggregated sorting patterns that are adjusted to the composition of the waste, colour differentiation, and label of the container. Amount of sorted containers are 478 pieces. The waste collection system is planned by an indirect individual collection pattern and a temporary shelter plan in the form of a partition wall is adjusted to the composition of the waste. Planning for waste transportation system is using a fixed container system with motor cart under capacity of 2.3 m3 with 1 fleet. Transportation is carried out on a scheduled basis. Transportation management is arranged twice per-day for organic waste, once per-day for valuable waste, once per-week for hazardous waste, once every 2 days for other water. Transportation schedule is carried out twice per-day, in the morning and evening.
Synthesis of Bioethanol from Cocoa Pod Husk Using Zymomonas Mobilis Mu'tasim Billah; Tikat Deri Agratiyan; Dhining Ayu; Nove Kartika Erliyanti; Erwan Adi Saputro; Rachmad Ramadhan Yogaswara
International Journal of Eco-Innovation in Science and Engineering Vol. 1 No. 01 (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.v1i01.12

Abstract

Nowadays, energy issue is one of the interesting discussions among the researchers and energy stakeholders. This is due to the reducing of the main source of world energy which consists mostly of non-renewable energy derived from fossils of living things millions of years ago. Alternatively, there are some alternative energy that promising in the future such as bioethanol from plant or fruits. For that reasons, the aim of this research is to make bioethanol from the peel of cocoa fruit. Cocoa pod husk can be used as source of bioethanol through a fermentation process with the help of bacteria. This study will examine the ethanol content in fermented cocoa pod husks. The fermentation time was 0 days, 2 days, 4 days, 6 days, 8 days. The Zymomonas mobilis bacteria is used in the fermentation process and their percentage is 8%v/v, 10%v/v, 12%v/v, 14%v/v, 16%v/v.In the process of fermentation of cocoa pod husk with Zymomonas mobilis inoculum on the 3rd day to 9thshowed an increase. On the eleventh day in all conditions the addition of a starter was decreased. The best condition when fermentation takes place on the 8th day with a starter dose of 14% and obtained an alcohol content of 10.62%.The results of this study indicate that the addition of Zymomonas mobilis starter and fermentation time affect the levels of bioethanol produced. The addition of a starter as much as 14% and the fermentation time for 8 days are the best condition in this study.
Use of Copper as a Converter Catalyst on Motorcycle Exhaust to Reduce HC (Hidrocarbon) Gas Emissions Naniek Ratni Juliardi AR; Dimas Hafiiz Wicaksono
International Journal of Eco-Innovation in Science and Engineering Vol. 1 No. 01 (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.v1i01.13

Abstract

The increasing number of vehicles especially in Surabaya means resulting in congestion in light traffic and there are a lot of gas such as CO, CO2, SOx, NOx and HC which produced by motorcycles and other vehicles. It has a big impact for the living things health and needs a specific studies. Copper catalyst design is the most effective in reducing HC motor vehicle gas. The purpose of this study is using a copper catalyst design method that is varied with engine speed (rpm) 1000, 3000, 5000, 8000, type of fuel and using the number of skates 1, 3, 5. The best result of HC gas reduction from the design with skat 5 at rpm 8000 with premium used of 41,5 % from 171 ppm to 100 ppm. This best condition (8000 rpm, 5 skates) uses premium with 88 octan number, pertalite type fuel with 90 octane number, then use the pertamax with 92 octane number. The HC gas results are 6 ppm, 72 ppm and 42 ppm.
Sensory and Microbiological Properties of Pickled Bamboo Shoots (Bambusa vulgaris) Mokhammad Khoiron Ferdiansyah; Ulfa Setiwati; Enny Purwati Nurlaeli; Fafa Nurdyansyah
International Journal of Eco-Innovation in Science and Engineering Vol. 1 No. 01 (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.v1i01.14

Abstract

Most people currently preserve bamboo shoots (Bambusa vulgaris) that have been harvested using alum which has an adverse effect on the human body. Alternative preservation of bamboo shoots can be done by making bamboo shoots using a solution of sugar and salt solution. This study aims to determine the effect of salt and sugar concentrations on the sensory and microbiological properties of pickled bamboo shoots. The design used was the factorial method in the basis of a completely randomized designs (CRD) using two factors, namely salt solution and sugar solution. The formulation used were sugar concentration 1%; 2%; 3% and salt concentration 10%; 12.5%; 15% Sensory test results showed that the concentration of sugar and salt affected the hedonic test values of color, aroma, and texture. Whereas microbiological analysis showed that there is an increase in the total plate count by increasing fermentation time
Effects of Solvent to Feed Ratio and Microwave Power on Extraction of Essential Oil from Red Guava Leaves (Psidium guajava l.) Using Microwave Hydro Distillation Method Febrian Lourenso Hangkaya; Jariyah; Sri Djajati; Anugerah Dany Priyanto
International Journal of Eco-Innovation in Science and Engineering Vol. 1 No. 01 (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.v1i01.15

Abstract

Essential oils are typically hydrophobic liquid mixture of natural products containingoil, volatile, and aromatic compounds extracted from plant species. This experiment was used microwave hydro distillation as extraction method to obtain the essential oils due to its efficiency. The purpose of both treatments used to increase total yield of essential oil from red guava leaves. Completely randomized design was used as experimental design with two variables and run in triplicate. The first variable is solvent to feed ratio (4:1, 5:1, 6:1, 7:1) and the second variable is microwave power (300W and 450W). The results showed that the ratio of solvent to feed (7:1) and microwave power (450W) has the highest yield and best quality of essential oils. The best variable has some parameters, particularly yield of 1.24%, refractive index of 1.49, and density of 0.78 g/ml. Analysis of essential oil profile has some abundance compounds, namely naphtalene or β-seline at 24.45%, neointermedeol at 17.97%, and caryophyllene at 16.04%. Moreover, the IC50 value has an antioxidant activity of 41.95 ppm.
Characterization of Liquid Skim Milk Fortified with Whey-Mangosteen Pericarp (Garcinia mangostana) Extract Solution Jaya Mahar Maligan; Mahsa Ridhani Jordan; Ria Dewi Andriani; Premy Puspitawati Rahayu; Teti Estiasih
International Journal of Eco-Innovation in Science and Engineering Vol. 1 No. 01 (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.v1i01.17

Abstract

Mangosteen pericarp has many health benefits. The types of mangosteen-based functional foods and drinks are still very limited, because the phenolic components of the mangosteen pericarp extract are easily damaged and cannot be fully absorbed by the body. Whey protein in milk is believed to function as a carrier for food. This whey protein can form complexes with phenolic components and can improve its physical and functional properties. In producing functional foods that are more stable, whey complexes - extracts of mangosteen pericarps that have been formed are fortified into skim milk. Addition of whey-mangosteen pericarp extract solution not significantly affected (α= 0,05) to creaming, sedimentation, and solubility of skim milk. However, there was enlargement in particle size of each concentration. The best treatment in this study was the concentration of adding 5% whey-extract of mangosteen pericarp extract with a phase separation value of 7.33% ± 0.70, the value of solubility reached 92.90 ± 4.86, the sedimentation value reached 0.0211 ± 0.007 , and the average particle diameter was 3.9 µm
Shortest Distribution Route Determination Of Pesticides Product Using Tabu Search Algorithm (Case Study : CV. Buana Artha Mandiri, Sidoarjo, Indonesia) Yustina Ngatilah; Anasyah Septiara; Caecilia Pujiastuti; Desak Ayu Clara Dewanti
International Journal of Eco-Innovation in Science and Engineering Vol. 1 No. 01 (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.v1i01.18

Abstract

Distribution is activity of delivering goods or services from producers to consumers. CV. Artha BuanaMandiri is a company engaged in Agricultural Industrial Chemicals. The products produced by CV. Artha Buana Mandiri are pesticides. With a large area distribution, the company's distribution process is still considered to be less optimal because there is no fixed distribution route due to the large number of routes used for the East Java distribution area, causing delays in the distribution process of pesticide products. The purpose of this study is to minimize the distance to obtain the optimal distribution route. Optimal route determination is included in the problem of Traveling Salesman Problem (TSP). One solution to solve TSP problems is to use the Tabu Search Algorithm. Tabu Search is a metaheuristic method based on local search. The process of performance moves from one solution to the next by choosing the best solution. The main purpose of this method is to prevent the search process from re-searching the space of the solution that has been traced. From the calculation it can be seen that the optimal route of the Tabu Search method is better than the company route with an optimum route of 251.3 km.

Page 1 of 8 | Total Record : 73

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