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Journal of Research and Technology
Published by Universitas NU Sidoarjo
ISSN : 24605972     EISSN : 24776165     DOI : -
Core Subject : Social, Engineering,
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.
Arjuna Subject : -
Articles 454 Documents
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KEUNGGULAN KOMPETITIF GULA CAIR KIMPUL Rejeki, Fungki Sri; Puspitasari, Diana; Wedowati, Endang Retno
Journal of Research and Technology Vol. 3 No. 1 (2017): JRT Volume 3 No 1 Jun 2017
Publisher : 2477 - 6165

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55732/jrt.v3i1.277

Abstract

The need of sugar as a sweetener is increasing, therefore it needs to look for other alternative sweeteners by developing liquid sugar from starch. Purse as one type of potential root crops have a great opportunity to be developed because it contains a high carbohydrate. The purpose of this research is to determine the best process of purse liquid sugar with acid and enzyme hydrolysis. This research consists of two stages. The first stage is the optimization process using acid hydrolysis and the second stage is the optimization process using enzyme hydrolysis. The tested parameters are Brix, moisture content, ash content, and reducing sugar. The best alternative process is based on Value Expectations Method. Furthermore, the products are tested for caloric value and Glycemic Index (GI). The results shows: (1) The best of acid hydrolysis process is adding 15 ml acid with hydrolysis time 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 GI value is 47,32; (2) The best of enzyme hydrolysis process is adding 3 ml enzyme and hydrolysis temperature of 100oC, which produces purse liquid sugar with 73.73% moisture content, 0.24% ash content, 25.17oBrix, 23,43% reducing sugar, 106 calories and GI value is 80.63. Keywords: Optimization Process, Hydrolysis, Liquid Sugar, Purse.
DEPOLIMERISASI PET PASCA KONSUMSI MELALUI GLIKOLISIS DENGAN KATALIS Rahmayanti, Ardhana
Journal of Research and Technology Vol. 1 No. 1 (2015): JRT Volume 1 No 1 Des 2015
Publisher : 2477 - 6165

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55732/jrt.v1i1.278

Abstract

Polyethylene terephthalate (PET) is a polyester which is widely used as a container or packaging material, especially mineral water and soft drinks. Recycling is necessary to overcome the post-consumer PET waste PET difficult because degraded naturally. Chemical recycling is an appropriate method for depolymerisation. Glycolysis is the method that is often used as the process was easy. Optimization parameters of glycolysis on the rate of reaction in the efforts to improve the products of glycolysis has been done as the use of catalysts. Metal acetate catalysts such as zinc acetate is a catalyst which shows good activity in the reactions of glycolysis, but the catalyst is non-biodegradable and toxic. The metal oxide catalysts are also many well developed but these catalysts are toxic, corrosive and can cause severe pollution. More environmentally friendly catalysts such as sodium salt today began much developed to minimize the impact to the environment. Keywords: depolimeritation, glycolysis, polyethylene terephthalate (PET), catalyst, bis (hydroxyethylene) terephthalate (BHET)
EFISIENSI REMOVAL BAKTERI PADA FILTER AIR PAYAU DENGAN MEDIA KARBON AKTIF Rahmayanti, Ardhana; Hamidah, Laily Noer
Journal of Research and Technology Vol. 5 No. 1 (2019): JRT Volume 5 No 1 Jun 2019
Publisher : 2477 - 6165

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55732/jrt.v5i1.279

Abstract

Seawater intrusion causes groundwater in coastal areas to be brackish, so it requires special processing to remove salt levels in raw water so that the water becomestasteless. In addition to salinity, the presence of bacteria in water can cause disease if consumed without proper processing. Brackish water treatment called desalination can be done by ion exchange using an activated carbon filter. The purpose of this study was to determine the efficiency of the performance of brackish water processing filters in setting aside water quality parameters in the form of: coli bacteria and total bacteria expressed in the Total Plate Count (TPC). The filtration reactor is made using filter media in the form of activated charcoal (20 cm), silica sand (15 cm), zeolite (15 cm), and gravel (10 cm). laying the reactor upright and tilted 45 degrees. The results showed that the reactor filter was effective in reducing Coliform bacteria and total bacteria in raw water up to 100% and 97%, respectively, although it did not meet drinking water quality standards PERMENKES No.492/Menkes/Per/IV/2010. Both reactor variations have performance effectiveness that is not significantly different in processing raw water, but overall reactors with upright variations have better performance. Keywords: Active Carbon Filtration, Coliform, Total Plate Count.
Fitoteknologi Pengolahan Limbah Cair Depo Pemasaran Ikan (DPI) Kabupaten Sidoarjo Menggunakan Eceng Gondok (Eichhornia crassipes) dan Kangkung Air (Ipomoea aquatic) Atik Widiyanti; Lily Oktavia; Ari Setiawan
Journal of Research and Technology Vol. 6 No. 2 (2020): JRT Volume 6 No 2 Des 2020
Publisher : 2477 - 6165

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55732/jrt.v6i2.280

Abstract

DPI Kabpaten Sidoarjo produces liquid waste from the fish washing process, which has the potential to pollute the environment. The results of the laboratory test of liquid waste produced by DPI Kabupaten Sidoarjo contains 764 mg/L BOD and 1.440 mg/L COD. DPI Kabupaten Sidoarjo uses phytoremediation methods with water hyacinth (Eichornia crassipes) and water spinach (Ipomoea aquatic). The parameters analysed were BOD5, COD, TSS, and TDS and biodegradability ratio. The reactor used was a 25 L batch reactor and the residence time used was 6 days. The results obtained by water hyacinth plants were able to reduce COD and BOD5 levels better than water spinach, namely 98.60% and 98.70%. Then the results of the TDS parameters of the water hyacinth reactor also got the lowest concentration of 368 ppm. For TSS parameters the best value was obtained from the water spinach reactor with a value of 400 mg/L. The pH parameters of the water hyacinth reactor and water spinach got a value between 6-7. The best biodegradability ratio was obtained from the water hyacinth plant reactor, which was 0.5-0.53.  
PROPORSI MANGGA PODANG-PISANG KEPOK DAN KONSENTRASI JERUK NIPIS TERHADAP KARAKTERISTIK FRUIT LEATHER MANGGA Rejeki, Fungki Sri; Anggita, Della; Wedowati, Endang Retno
Journal of Research and Technology Vol. 5 No. 2 (2019): JRT Volume 5 No 2 Des 2019
Publisher : 2477 - 6165

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55732/jrt.v5i2.302

Abstract

Fruit leather is a snack made from fruit puree in the form of thin sheets, plastic texture, and does not break when rolled. The raw material used was a podang mango extract. The component of pectin, acid, and sugar affect the fruit leather texture. Addition ofkepok banana puree needed as a source of pectin. Furthermore, the addition of ime juice to reduce pH on mixed puree. Randomized Block Design used with two factors and three replications. The first factor was the proportion of podang mango extract and kepok banana puree (90:10; 80:20; 70:30). The second factor was a concentration of lime juice (0%; 0,4%; 0,8%). The parameters observed were yield, pH, moisture content, crude fiber content, reducing sugar content, aroma, flavor, and texture. The research result showed that the best treatment was 80% podang mango extract, 20% kepok banana puree, and 0.4% lime juice.
PENGOLAHAN LIMBAH CAIR RUMAH POTONG HEWAN MENGGUNAKAN ROTATING BIOLOGICAL CONTACTOR MODIFIKASI SLUDGE ZONE Hendrasarie, Novirina; Santosa, Bagas Aldin
Journal of Research and Technology Vol. 5 No. 2 (2019): JRT Volume 5 No 2 Des 2019
Publisher : 2477 - 6165

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55732/jrt.v5i2.303

Abstract

Slaughterhouse wastes generally contain blood, proteins, fats, and suspended solids that cause a high load of organic matter which can pollute rivers and water body. The waste water of slaughter house will cause changes on the quality of the water, such as increased colour, pH, total dissolved solids, suspended solids, fats, BOD5, ammonium, nitrogen and phosphor. In this study aims to reduce the content of slaughterhouse waste water, using Rotating Biological Contactor (RBC) modified with a sludge zone. It was expected that by modifying the sludge zone, the efficiency of RBC performance can be further improved. This study used a variety of Hydraulic Retention Time (HRT) of 2.8 hours, 3.5 hours and 4.2 hours along with waste water dilution of 50%, 75% and 100% using the continue system into clarifier process. Based on the results of the study, the decreased percentage in COD concentration reached 86.68%, the total decreased percentage of Nitrogen concentration reached 66.11% and the decreased percentage in TSS concentration reached 71.87%. The pH value is neutral with a range of 7.6-8.3 with temperatures range of 26oC-30oC during operation. The highest DO values reached 5.2 mg/L with a range of organic surface loading values of 89.77 - 135.45 grams BOD/m2 .day. The organic load figure exceeds the RBC organic load standard which averages around 8-20 grams/BOD/m2.day. The increased of organic load, indicates that RBC with modified sludge zone was able to treat wastewater with high organic load, such as slaughterhouse waste water.
Sebaran Timbal pada Tanah di Areal Persawahan Kabupaten Sidoarjo Fitrianah, Listin; Agus Rachmad Purnama
Journal of Research and Technology Vol. 5 No. 2 (2019): JRT Volume 5 No 2 Des 2019
Publisher : 2477 - 6165

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55732/jrt.v5i2.307

Abstract

The existence of this industry in Sidoarjo has the negative potential impact to the environment, namely the accumulation of heavy metals in paddy fields. The magnitude of the impact that can be caused by the presence of lead heavy metals, research is needed that is expected to provide information related to the concentration and distribution of lead on land in Sidoarjo district. The distribution will later be elaborated by mapping using Geographic Information Systems. The purpose of this research is to identify the potential distribution of lead heavy metals in soil and soil in Sidoarjo paddy fields and the potential impact of lead accumulation on the environment. Samples taken were soil in the paddy fields, with 18 location points. The method used in the identification of lead distribution in paddy fields in Sidoarjo district is survey and laboratory testing, where the pattern of lead content distribution in paddy fields is carried out using spatial analysis with the spline with barrier method Arcgis 10.1. The highest distribution of lead content in paddy fields in Wonoayu District, 0.46 ppm. The highest dominant distribution pattern of lead pollution in paddy fields is Wonoayu and Waru sub-districts.  
PENGARUH TREATMENT ALKALI TERHADAP KARAKTERISTIK FIBER SABUT KELAPA SAWIT DAN PELEPAH PISANG SEBAGAI BAHAN KOMPOSIT POLIMER Setiawan, Adhi; Vivin Setiani; Fitri Hardiyanti; Devina Puspitasari
Journal of Research and Technology Vol. 5 No. 2 (2019): JRT Volume 5 No 2 Des 2019
Publisher : 2477 - 6165

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55732/jrt.v5i2.321

Abstract

The use of synthetic fibers in the fabrication of polymer composite materials has a negative impact on the environment. Natural fibers such as palm oil waste and banana pseudostem can be an alternative material for synthetic fibers because they are more economical, high specific strength, and environmentally friendly. The alkali treatment needs to be carried out on fibers for removal of lignin, hemicellulose, and impurity so that they can improve interfacial bonding between the fiber and the polymer matrix. The alkali treatment was carried out through fiber immersion in conditions without NaOH, 5% wt NaOH solution, and 10% wt for 24 hours. Fiber before and after alkalization were analyzed using Scanning Electron Microscope (SEM), X-Ray Difraction (XRD), Fourier Transform Infrared (FTIR), and Thermogravimetric Analysis (TGA) methods. The results showed that alkali treatment was effective in removing the components of lignin, hemicellulose, and impurities in fiber. The result of the SEM showed that the treated fiber surface had a cleaner surface than treatment without fiber. The alkalitreatment process can improve the crystallinity and crystallinity index of the fiber due to amorphous component removal of lignin and hemicellulose. The TGA result of palm oil fiber with alkali treatment and without alkali treatment produced weight loss of 88,2% and 98,4% respectively. This showed that the alkali treatment can increase the thermal resistance of the palm oil fiber.
PEMANFAATAN LIMBAH DAUN NANAS (ANANAS COSMOSUS) SEBAGAI ADSORBEN LOGAM BERAT Cu Mayangsari, Novi Eka; Mirna Apriani; Veptiyan, Egata Dwi
Journal of Research and Technology Vol. 5 No. 2 (2019): JRT Volume 5 No 2 Des 2019
Publisher : 2477 - 6165

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55732/jrt.v5i2.322

Abstract

Pineapple leaf waste (Ananas cosmosus) contains a constituent component in the form of cellulose and lignin. Cellulose, hemicellulose, and lignin bind to each other to form lignocellulose. The high cellulose content can be used as an adsorbent through the process of delignification or removal of lignin. This study aims to determine the characteristics and ability of pineapple leaf cellulose to remover heavy Cu metals. Applied pineapple leaves to be used are equalized to 60 mesh then delignified for 70 and 90 minutes by mixing pineapple powder using 9% NaOH with a ratio of 1:30 (w/v). Pineapple leaves are characterized by chesson, SEM, and XRD analysis. The results of Chesson analysis showed that pineapple leaf cellulose had a cellulose content of 25.33% and the delignification time of 70 minutes resulted in the highest cellulose content of 59.12%. The XRD diffractogram showed pineapple leaf cellulose including type I cellulose. The highest degree of crystallinity was obtained by pineapple leaf cellulose with a delignification time of 90 minutes which was equal to 65.98%. The adsorption process was observed with variations in contact time 30, 60, 90, and 120 minutes. The highest Cu metal adsorption was pineapple leaves with a delignification process of 70 minutes with a contact time of 90 minutes.
EFEKTIVITAS EKSTRAK BUAH LADA HITAM (PIPER NIGRUM L) KOMBINASI JAHE MERAH (ZINGIBER OFFICINALE) UNTUK MENGOBATI PENYAKIT VITILIGO Mimatun Nasihah; Fajrin, Fitriana Ikhtiarinawati
Journal of Research and Technology Vol. 5 No. 2 (2019): JRT Volume 5 No 2 Des 2019
Publisher : 2477 - 6165

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55732/jrt.v5i2.324

Abstract

Vitiligo is a disease that causes skin color fading caused by cells that form melanin unfunctionally. The initial symptom is the appearance of white patches that will gradually become brighter and wider. Black pepper, aside from being used as a complement to cooking spices, its piperin content can stimulate the formation of skin melanin. Red Ginger is also believed to heal bad cells in the skin or restore damaged skin naturally, eliminating vitiligo because it contains collagen. This research used the experimental method. Data collection included pH test, organoleptic test, cream effectiveness test and pharmaceutical test. Data analysis used the Anova One Way to find out whether differences cream composition affected color, texture, thickness, and fondness. Test of T-Paired was used to determine differences vitiligo exposure before and after treatment. The comparison of Black Pepper: Red Ginger: Emulgade were (1:2:1), (1:1:1), (1:1:2), (1:1:3), and (1:3:8). Anova One Way test results showed that F-count to cream color (24,718)> F-table (4.53), F-count to cream texture (11,834)>F-table (4.53), F-count to cream density (15,001)>F-table (4.53) and F-count to cream fondness (6,517)>F-table (4.53). This showed that there was a significant difference for the combination of red ginger black pepper cream on color, texture, density and fondness on the cream. The effectiveness test of cream used T-paired test with result Tcount (5.277)>T-table (2.131), it showed that there was a significant difference in the vitiligo exposure before and after being given a cream of black pepper and red ginger. Pharmaceutical test explained that cream were homogeneous, semi-solid, had a distinctive odor, brownish yellow color, pH 6, and had a spread capacity of 5.2 cm.

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