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Journal of Research and Technology

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Published by Universitas NU Sidoarjo

ISSN : 24605972 EISSN : 24776165 DOI : -

Chemical Engineering, Chemistry & Bioengineering Engineering Environmental Science Industrial & Manufacturing Engineering

Journal of Research and Technology published since 2015 contains a collection of a selected articles from the results of research and study of literature which is relevant to industrial , chemical, and environment engineering. Target readers of the Journal of Research and Technology are scientists, academics, and practitioners from various fields of industry.

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Articles 250 Documents

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KARAKTERISTIK BIODIESEL DENGAN MENGGUNAKAN ETANOL KONSENTRASI RENDAH Ningsih, Erlinda; Suparto, Suparto
Journal of Research and Technology Vol 3, No 1 (2017)
Publisher : Universitas Nahdlatul Ulama Sidoarjo

Biodiesel is produce by transesterification process using alcohol and the most alcohol used in biodiesel manufacturing is methanol. Methanol is made from non-renewable material. Whereas, ethanol made from renewable materials and the price of pure ethanol is expensive. So, research to produce biodiesel with low ethanol concentration was conducted. This research was aimed to know the mole ratio of oil toward ethanol and the best reaction time in this biodiesel production. The mole ratios of oil toward ethanol used were 1:12, 1:14, 1:16 and the time reactions were one, two, and three hours. This research was started by heating the oil to temperature 60oC, then adding ethanol solution and NaOH and being reacted into several variations of time. After that, the separating and washing process were executed. From the analysis result, the biodiesel produced is appropriate with the requirements of SNI 04-7182-2006.

PERBANDINGAN RASIO BOD/COD PADA AREA TAMBAK DI HULU DAN HILIR TERHADAP BIODEGRADABILITAS BAHAN ORGANIK Tamyiz, Muchammad
Journal of Research and Technology Vol 1, No 01 (2015)
Publisher : Universitas Nahdlatul Ulama Sidoarjo

Pond is one place that is used as a place to cultivate fish, shrimp, and other aquatic animals that can live in brackish water. Changes in water quality upstream and downstream of the pond due to pollutants may affect the ecological balance of waters. Pollutants can be determined by two simple parameters, the biochemical oxygen demand (BOD) and chemical oxygen demand (COD). While the ability to break down pollutants (biodegradability) can be determined using the ratio of BOD/COD. BOD analysis using the Winkler titration method, whereas the COD analysis using titrimetric method. The value of BOD, COD, and the ratio of BOD/COD in the upstream area is 28.00 mg/L, 60.00 mg/L, and 0,467 respectively. While the value of BOD, COD, and the ratio of BOD/COD in the downstream area is 20.00 mg/L, 43.00 mg/L, and 0.465 respectively. Ratio BOD/COD obtained show that the organic pollutants in the pond is biodegradable.

PRODUKSI BIODIESEL DARI MINYAK JELANTAH MENGGUNAKAN KATALIS KALSIUM OKSIDA Rahkadima, Yulia Tri; Abdi, Putri
Journal of Research and Technology Vol 2, No 1 (2016)
Publisher : Universitas Nahdlatul Ulama Sidoarjo

The transesterification reaction has performed to convert waste cooking oils into biodiesel with assistant of heterogen catalyst of calcium oxide using reactor in a laboratory . The reaction was performed in two stages that is the esterification followed transesterification reaction. The aim of research is to study the effect of temperature and time reaction on viscosity and biodiesel yield. The results showed that obtained biodiesel had viscosity value in accordance with SNI 04-7182-2006 about diesel-fuel viscosity. At lower temperature (40, 45, and 50°C), the longer reaction time could lead to the increasing of biodiesel yield. Meanwhile, at higher temperature reaction (55°C and 60°C) the longer reaction time could reduce biodiesel yield. The highest biodiesel yield was obtained at following reaction condition: temperature reaction 50°C, 6 hours reaction time, ratio oil:MeOH = 1:48 molar ratio, % wt CaO = 8% to weight of waste cooking oil.

KEUNGGULAN KOMPETITIF GULA CAIR KIMPUL Rejeki, Fungki Sri; Puspitasari, Diana; Wedowati, Endang Retno
Journal of Research and Technology Vol 3, No 1 (2017)
Publisher : Universitas Nahdlatul Ulama Sidoarjo

The need for sugar as a sweetener is increasing, therefore need to look for alternative other sweeteners as sugar cane substitution, among them by developing liquid sugar from starch. Purse as one type of root crops have a great opportunity to be developed because it has a high carbohydrate content. The purpose of this research was to determine the best process of purse liquid sugar with acid hydrolysis and enzyme hydrolysis. This research consists of 2 stages. The first stage is the processing optimization by acid hydrolysis and the second stage is the processing optimization by enzyme hydrolysis. The parameters tested were oBrix, moisture content, ash content, and reducing sugar. The best process is based on the highest expectation value based Value Expectations Method. Furthermore, the products produce from the selected process calculated caloric value and the Glycemic Index (GI). The results of this research showed that: (1) The best acid hydrolysis process is adding acid 15 ml and hydrolysis time are 1 hour, which produces purse liquid sugar with 86.30% moisture content, 2,01% ash content, 13,33oBrix, 10,21% reducing sugar, 41 calories and IG value is 47,32; (2) The best enzyme hydrolysis process is adding 3 ml enzyme and hydrolysis temperature of 1000C, which produces purse liquid sugar with 73.73% moisture content, 0.24% ash content, 25.17 oBrix, 23,43% reducing sugar, 106 calories and IG value is 80.63.

OPTIMASI KUALITAS BRIKET BIOMASSA PADI DAN JAGUNG DENGAN VARIASI CAMPURAN SEBAGAI BAHAN BAKAR ALTERNATIF Hamidah, Laily Noer; Rahmayanti, Ardhana
Journal of Research and Technology Vol 3, No 2 (2017)
Publisher : Universitas Nahdlatul Ulama Sidoarjo

The energy crisis demands the development of an alternative energy that can meet daily needs. The existence of rice straw biomass waste and corncob is a potential to be utilized as bioenergy in the briquettes form. This research was conducted to develop and test the characteristics of biomass briquettes as alternative fuels. Biomass used in this research is rice straw and corn cob. The making of briquettes is done by carbonation and compaction with starch adhesive by 10%. To know the best quality of briquettes, a mixture of rice straw (100%) was used, mixed rice straw: corncobs (25%: 75%, 50%: 50%, and 75%: 25%), and corncobs (100 %). Test parameters used are ash content, volatile matter content, and calorific value. The results showed that briquettes from corncobs were the best briquettes from ash content and volatile matter content of 9.52% and 9.7% respectively. While based on calorific value, briquettes with highest heating value is rice straw briquettes that is equal to 3562 Kcal / kg but has the highest volatile matter and ash content which can decrease the quality of briquette.

REKOMENDASI PENINGKATAN PEMANFAATAN LAYANAN PERSALINAN NORMAL DI KLINIK PRATAMA RAWAT INAP RUMAH BERSALIN GRATIS RUMAH ZAKAT Disrinama, Am Maisarah
Journal of Research and Technology Vol 2, No 1 (2016)
Publisher : Universitas Nahdlatul Ulama Sidoarjo

Intention of buying product or service is very important thing on purchasing stage. It depends on alternatives evaluation process on pre purchasing stage. K4 Pregnant woman has to decide the place to birth. The objective of this study is to create recommendation to increase Normal Labour on K4 Pregnant Women using Brand Image Analysis dan Three Stage Model of Service Consumption in Klinik Pratama Rawat Inap Rumah Bersalin Gratis Rumah Zakat. This research uses observasional analytic and prospective cohort. The primary data is collected two times, before and after delivery process. There are 54 respondents, whether all of K4 pregnant women with pregnancy age are more than 32 weeks. The samples were taken from March to August 2014. The result shows that some characteristics have relationship with purchasing decision. The recommendations consist of product, place, promotion, people, process, and physical evidence. Overall, the head of branch needs to fix the service for mother and child evaluation soon.

PEMBUATAN PURWARUPA SISTEM INFORMASI PERSEDIAAN OPTIK STUDI KASUS: UD AGNES, MALANG Prasetyo, Waluyo
Journal of Research and Technology Vol 2, No 2 (2016)
Publisher : Universitas Nahdlatul Ulama Sidoarjo

UD Agnes/Agnes Optic (AO) was established in 1990 and located at Jalan Imam Bonjol Kota Batu in Malang. This business is engaged in optical products and services. In this study, the research focus is product of eyeglass lenses. OA business development process has faced obstacles in inventory problem and manual restock process. During this time inventory management has not been managed well so it takes a long time to check inventory stock. EOQ method is used to calculate the inventory in gaining restock time and reduce stock inventory searching time so as to produce information about costs and benefits in each period. The result obtained are optimal restock time period for each stock, reduction of searching time inventory, and information cost and the benefits obtained by AO.

PENURUNAN BOD PADA BIOGAS KOTORAN SAPI CAMPURAN LIMBAH CAIR INDUSTRI PENYAMAKAN KULIT DENGAN VARIASI KECEPATAN DAN LAMA PENGADUKAN Indrawati, Rosiana
Journal of Research and Technology Vol 3, No 2 (2017)
Publisher : Universitas Nahdlatul Ulama Sidoarjo

The scarcity of energy sources, especially fuel oil (BBM) has become a world problem. The abundant cattle dung in the community has not been optimally utilized. In addition, the Tannery Industry (IPK) has not been optimally utilized. The aim of this research is to know the effect of speed and duration of stirring to biogas volume and final BOD concentration on cow manure biogas mixturetannery industry wastewater (IPK). The experiment used biodigester reactor as much as 5 pieces, 1 as the controller without stirring and 4 others as the test digester with stirring. IPK 0 as a control digester without stirring. Variation of stirring speed 5 and 10 rpm and stirring time 10 and 15 minutes. The volume of biogas is measured for 20 days. BOD levels are measured on the last day of the fermentation process. The experiment showed that the highest biogas volume was found on PK10L10 test digester that was mixture of cow manureandtannery industry wastewater (IPK) with variation of 10 rpm and duration of stirring 10 minutes ie 0.904 m3, and the lowest biogas volume was 0,158 m3in IPK0 digester. The highest decrease in BOD content was 20% in PK10L15 digester and the lowest decrease IPK0 digester was 4%. The stirring process has a significant effect on biogas production and decrease of BOD concentration in the digester.

ANALISIS PENGENDALIAN KUALITAS PRODUKSI BOGIE BARBER S2HD 9C MENGGUNAKAN METODE LEAN SIX SIGMA DENGAN PENDEKATAN DMAIC (DEFINE, MEASURE, ANALYZE, IMPROVE, CONTROL) STUDI KASUS DI PT BARATA INDONESIA (PERSERO) GRESIK Hamim, Moh. Ismail; Prasetiawan, Heru; Suparno, Suparno
Journal of Research and Technology Vol 2, No 2 (2016)
Publisher : Universitas Nahdlatul Ulama Sidoarjo

This study aimed to analyze the quality control and waste that occurs in side frame S2HD9C production using lean six sigma method with DMAIC approach in PT Barata Indonesia (Persero) Gresik. Side frame S2HD9C is a part of bogie barber S2HD9C products. This study focused on six sigma phase on defect analysis and sigma performance, while lean six sigma phase focused on the analysis of waste and sigma performance. The data used in this study are two types: primary and secondary data, qualitative and quantitative. Primary data were obtained from field observations, while secondary data obtained from the study of the document. This study conducted with the approach of DMAIC (define, measure, analyze, improve, control). After the analysis at six sigma stage, it is known that there are 5 types of defects that occur in January to April 2016, they are trapped gas defect 58.18%, broken core defect 21.82%, sand drop defect 12.73%, brake mold defect 5.46% and misplace core defect 1.82%. And sigma value achievement level of each defect are as follows: trapped gas defect 1235.71 DPMO = 4.52σ, broken core defect 463.392 DPMO = 4.81σ, sand drop defect 270.312 DPMO = 4.96σ, brake mold defect 115.848 DPMO = 5.18σ and misplace core defect 38.616 DPMO = 5.45σ. In lean six sigma stage, it is known that there are 4 types of waste, they are: waste defect product, waste waiting time (delay), waste transportation, and waste excess process. Here are achievement values of each waste: waste defect product 6890 DPMO = 3.96σ and value capability process 1.31 = 3.94σ, waste waiting time (delay) value capability process 1 = 3σ, waste transportation value capability process 1.31 = 3.94σ and waste excess process 1499.75 DPMO = 4.47σ.

ALKALINE PRETREATMENT DAN PROSES SIMULTAN SAKARIFIKASI-FERMENTASI TERHADAP KADAR ETANOL DARI SERABUT KELAPA Istihaji, Era Devi; Budiarto, Joko; Mastura, Lisa; Juniar, Rianthy; Cahyo, Muhammad; Irawan, Dedy
Journal of Research and Technology Vol 3, No 1 (2017)
Publisher : Universitas Nahdlatul Ulama Sidoarjo

This mature coconut fibers utilized have traditionally been handcrafted with low economic value and mostly just be a waste. In this study, coconut fibers used as materials for bioethanol. A total of 100 grams of fibers delignified by using NaOH solution with a concentration variation of 1%, 1.5%, 2%, 2.5% and 3%, which was created earlier. Delignification carried out for 90 minutes at a temperature of 90 ° C and the stirring rotation of 150 rpm. Then the results of delignification rinsed and fibers are fermented for 7 days simultaneously using 15% Saccharomyses cerevisiae, Trichoderma sp 10% and 5% Aspergillus niger. Fermented then filtered and distilled liquid to be taken. The results were analyzed using GC distillation and obtained the best results with ethanol concentration of 213.12 mg / mL and the resulting yield of 2.69%.

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Home Page

OAI Link

Editorial Team

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Contact Name Muchammad Tamyiz

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Location Kab. sidoarjo, Jawa timur INDONESIA

Abstract

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Abstract

Abstract

Abstract

Abstract

Abstract

Contact Name
Muchammad Tamyiz

Contact Email
muchammad_tamyiz@yahoo.com

Phone
-

Journal Mail Official
muchammad_tamyiz@yahoo.com

Editorial Address
-

Location
Kab. sidoarjo,

Jawa timur

INDONESIA