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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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Search results for , issue " Vol 5, No 1 (2019)" : 10 Documents clear

METHODE PENGERINGAN AMPAS TEBU (BAGASSE) DENGAN PEMANFAATAN KEMBALI PANAS GAS BUANG BOILER DI PG. PRADJEKAN BONDOWOSO Solikin, Solikin
Journal of Research and Technology Vol 5, No 1 (2019)
Publisher : Universitas Nahdlatul Ulama Sidoarjo

At present the need for fossil fuels is very high, while reserves in nature are decreasing. For this reason, innovation is needed to find alternative energy from fossil fuels to alternative energy that is more environmentally friendly and can be renewed. The sugar factory as one of the Dutch heritage industries that produces solid waste in the form of bagasse can be used for boiler fuel. While the boiler exhaust gas (flue gas) from the chimney generated from burning fuel also causes air pollution can be used for drying bagasse so as to reduce the impact of pollution caused by the exhaust gas.The use of bagasse with a moisture content of around 49 - 52% as boiler fuel as one of the causes of burning in the combustion chamber is not perfect and causes air pollution. The high temperature of the smoke gas coming out through the boiler chimney around 2200C has a heat content of 13475.72 kW and still high levels of water in the pulp can certainly be used to dry bagasse using a dryer (Rotary Dryer) Through the use of flue gas that is wasted on the boiler chimney for bagasse drying, it can increase the heat value of bagasse 50,544 x 106 Kcal / hour for the production of bagasse 30 tons / hour, reduce bagasse water content up to 35,1%, increase thermal efficiency and reduce pollutants released into the surrounding environment.

REMOVAL IMPURITIS GARAM DENGAN METODE PERTUKARAN ION SECARA BATCH Pujiastuti, Caecilia; Ngatilah, Yustina; Sumada, Ketut; Putri, Dinar Ismilla; Laila, Indah Nur
Journal of Research and Technology Vol 5, No 1 (2019)
Publisher : Universitas Nahdlatul Ulama Sidoarjo

Salt is one of the community and industrial consumption products that have the main content of sodium chloride (NaCl). The present quality of the salt product contains about 90-93% sodium chloride, and the other is known as an impurities of calcium (Ca), magnesium (Mg), potassium (K) and sulfate (SO4) ions. The presence of these impurities will decrease the quality of the salt product, so a method is needed to decrease the content of impurities in the salt product. One of the methods that can be used to reduce the levels of impurities such as Ca, Mg, K and sulfate (SO4) ions in salt solution is ion exchange method. In this study we studied the effect of cation resin amount (50-150) grams per liter of salt solution and anion solution (150 grams) and contact time (5-25) minutes on removal of Ca, Mg, K and SO4 ions. The study was conducted in a stirred tank with a fixed rotation speed of 200 rpm, and the initial quality of the salt solution contained Ca ions: 0.07%, Mg: 0.09%, K: 0.04% and SO4: 0.4%. Based on the result of the research, the removal of Ca ion: 93.6%,Mg :78.93%, K : 25.00% dan SO4 : 85.47 %at condition of cation resin amount: 150 gram / liter and contact time 25 minutes

ISOLASI FITOSTEROL DARI BAWANG MERAH (Allium cepa L.) Aziz, A. Musonnifin; Syahriyah, Farikha Alfi; Ulumuddin, Ahmad Ihya'; A'yuni, Qurrota
Journal of Research and Technology Vol 5, No 1 (2019)
Publisher : Universitas Nahdlatul Ulama Sidoarjo

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Shallot is one of the kitchen spices that is often used by the community. Shallot contains several useful compounds and one of them is phytosterol. Along with the development of science and technology, phytosterol can be used to reduce blood cholesterol levels and prevent heart disease, so it is very beneficial for human health. In this study, phytosterol compounds were identified and isolated. The dried onion is then pureed and sifted to 100 mesh. The sieved powder is then extracted by reflux extraction method within 6 hours. The results of the extract were then isolated by column chromatography and identified by thin layer chromatography (TLC). The TLC test uses -sitosterol as a standard and anisaldehyde reagent as a stain appearance. The TLC plate which had stained appearance was then analyzed using the TLC Scanner method. The results of the TLC test showed that the extract of positive red onion was purple and contained fitosterol. The results of the TLC Scanner also show that the peak and spectrum of the samples are the same as the standard -sitosterol and positively contain fitosterol.

HUSBAND'S SUPPORT FOR REGULARITY OF ANTENATAL CARE (ANC) (IN THE VILLAGE POLYCLINIC IN DRENGES VILLAGE, SUGIHWARAS DISTRICT BOJONEGORO REGENCY) Fajrin, Fitriana Ikhtiarinawati
Journal of Research and Technology Vol 5, No 1 (2019)
Publisher : Universitas Nahdlatul Ulama Sidoarjo

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This study aims to determine the support of the husband, know the regularity of antenatal care and analyse the relationship of husband's support for the regularity of antenatal care. This research is a descriptive analytic study with Cross Sectional approach. Sources of data were obtained from all pregnant women who examined at the village polyclinic in Drenges Village, Bojonegoro Regency on November 1, 2017 - May 1, 2018 with a population of 28 people. The sampling technique uses Total Sampling. Data collection techniques use primary data and secondary data. Primary data in the form of data about husband's support for antenatal care obtained from the questionnaire, while secondary data in the form of data about the regularity of antenatal care obtained from medical records and MCH books, then the data were analyzed descriptively and by statistical analysis using SPSS 22 correlation test. The results of this study indicate that the majority of husbands' support is lacking as many as 19 respondents (68%), the majority of respondents do not regularly conduct Antenatal Care examinations as many as 17 respondents (61%), the majority of respondents who received husband’s support regularly conducted Antenatal Care, namely 6 respondents (67 %), and respondents who lacked husband's support, the majority of them did not regularly conduct Antenatal Care, namely 14 respondents (74%). From the results of the correlation test, the value of sig = 0,000 means that H0 is rejected and H1 is accepted. From the results of the correlation test also obtained a correlation coefficient of 0.8 which means that the support of the husband with the ANC regularity is very strong. The conclusions from this study are the relationship between husband's support and the regularity of the ANC with a very strong relationship.

VERIFIKASI LINIERITAS KURVA BAKU TESTOSTERON MENGGUNAKAN METODE ELISA (ENZYME-LINKED IMMUNOSORBENT ASSAY) Fernanda, MA Hanny Ferry; Sa'adi, Ashon; Sudjarwo, Sudjarwo
Journal of Research and Technology Vol 5, No 1 (2019)
Publisher : Universitas Nahdlatul Ulama Sidoarjo

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ELISA (Enzyme-Linked Linked Immunosorbent Assay) is one of the quantitative analysis methods that is often used to determine the levels of active compounds in biological samples. In this study, we will verify the method of determining testosterone active compounds in blood and urine samples of female patients who have PCOS (Polycystic Ovary Syndrome) using the Human Testosterone ELISA Kit. Before conducting testosterone levels using ELISA, it is necessary to verify the linearity of the standard curve first to determine the effect of testosterone standard levels on the analyte response in the form of optical density. The linearity verification of the standard testosterone curve is calculated using linear regression calculations with the results of the coefficient of determination which is 0.978 with a value of α = 0.05. While for testing with the calculation of 4 parameter logistic (4PL), the results of the coefficient of determination are 0.999. Based on these results it can be concluded that the testosterone standard level has a significant influence on the response of optical density analytes.

PENURUNAN BOD (BIOCHEMICAL OXYGEN DEMAND) DAN TSS (TOTAL SUSPENDED SOLIDS) PADA PENGOLAHAN LIMBAH CAIR DOMESTIK DENGAN PROSES ANAEROBIK BIOFILTER Pramita, Ayu; Sari, Eka Dyah Puspita
Journal of Research and Technology Vol 5, No 1 (2019)
Publisher : Universitas Nahdlatul Ulama Sidoarjo

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Domestic wastewater in the culinary area is waste water produced from several restaurants. The problem of liquid waste needs to get serious attention, because it has complex characteristics and the remaining results of these activities can cause the volume of wastewater with a high contaminant load that flows continuously over a long period of time. One way to manage the environment is through physical processing, namely by pre-treatment of sedimentation and biological treatment by biofilter anaerobic processes. Anaerobic biofilter is a biological treatment, which uses media as a place to grow and develop microorganisms, with no oxygen in the reactor. The parameters in liquid waste processing consist of three, namely physical parameters, chemical parameters and biological parameters. In the method of combating liquid waste here uses chemical parameters, namely BOD and TSS. Where BOD (Biochemical Oxygen Demand) is the number of milligrams of oxygen needed by aerobic microbes to decompose karon organic matter in 1 L of water for 5 days at a temperature of 20˚C ± 1˚C. Whereas for TSS (Total Suspended Solid) as the residue from total solids held by a filter with a particle size of maximum 2μm or greater than the size of colloidal particles, which include TSS are mud, clay, metal oxides, sulfides, algae, bacteria, and fungi . The aim of this research is that the liquid waste from the activity can be reused as clean water by anaerobic biofilter method using BOD and TSS parameters. The variables used are operational time. Reactor I and reactor II contain media arranged from the bottom up, namely rock fragments, gravel, shells and gauze. The operational time variations used are 0 hours as t0 or the first time the waste exits the reactor, and the time is 2 hours, 4 hours, 6 hours, and 8 hours is a periodic observation of operational time. The results showed that anaerobic biofilter has the ability to reduce the concentration of BOD (Biological Oxygen Demand) and TSS (Total Suspended Solid). Based on the Regulation of the Minister of Environment and Forestry of the Republic of Indonesia Number P.68 / Menlhk / Setjen / Kum.1 / 8/2016 concerning Domestic Waste Water Quality Standards, the characteristics of wastewater are obtained before treatment (pre treatment) which is 28- 31 ° C; pH 9,3-10; BOD 30 mg / L; and TSS 29 mg / L. Decreasing the initial state in reactor I for BOD is 25 mg / L. Whereas for the decrease in TSS is 16 mg / L. The results showed that anaerobic biofilter with pumice, gravel and clam shell media had the ability to reduce BOD and TSS concentrations significantly. The percentage decrease in concentration in reactor I was greater than that of reactor II, with an operational time of 6 hours for BOD allowance of 73,54%. While the operational time of 8 hours for TSS is 81,39%.

ANALISIS PENGARUH MEKANISME KORDINASI TERHADAP SCHEDULE INSTABILITY DAN TOTAL BIAYA PADA LEVEL MPS DI ENTITAS RANTAI PASOK SEDERHANA DENGAN MEMPERTIMBANGKAN LEAD TIME Rosyidah, Elsa; Anwar, Mochammad Aldy
Journal of Research and Technology Vol 5, No 1 (2019)
Publisher : Universitas Nahdlatul Ulama Sidoarjo

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Instability in production planning (or better known as schedule instability) is unavoidable. This makes the company companies make various efforts to minimize the level of instability. There are several strategies that are generally used to minimize instability schedules, including freezing, safety stock / buffer. In this study, we will try to use a coordination approach to minimize the consequences of instability schedules in a simple supply chain. The simple supply chain system is the focus of this study consisting of one entrepreneur and one supplier integrated through a coordination mechanism (sharing information relating to order orders). This research will be conducted to study a full factorial experiment (full factorial experiment). A variety of different operational conditions are also considered such as: the uncertainty of financing, the cost structure, and the inventory policy applied by the company to be the part observed in this study. The results of this study, namely through the existence of a coordination mechanism, can reduce the level of schedule instability in each entity both manufacturing and supplier. In addition, through coordination it is also able to eliminate the transfer of risks that manufacturers often make to suppliers in the production planning section, as well as being able to reduce total costs to manufacturing or supplier entities. Through this research, it is expected to provide an understanding in the manufacturing industry of the importance of coordination in the supply chain system.

PENGARUH KEBISINGAN DAN IKLIM KERJA TERHADAP STRES KERJA DI PABRIK PRODUKSI MAKANAN HEWAN Wiediartini, Wiediartini; Dermawan, Denny
Journal of Research and Technology Vol 5, No 1 (2019)
Publisher : Universitas Nahdlatul Ulama Sidoarjo

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Noise and heat has become a problem for worker in animal food processing company. The aim of this study was to investigate the influence of noise and heat to stres. Noise and heat data were collected as primary data and stres was collected by questionnaire and analyzed by multiple regression. The result showed relationship between noise, heat and stres (sig 0,003<0.05). A moderate correlation between noise, heat and stres was also observed (r=0,561). No differences between two groups of age, gender and status were found with t test. Reducing noise and heat by engineering and administrative control were necessary execute. There is no need for different treatment to reduce stres between group of gender, age and status.

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)
Publisher : Universitas Nahdlatul Ulama Sidoarjo

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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 becomes tasteless. 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 (20cm), silica sand (15cm), zeolite (15cm), and gravel (10cm). laying the reactor upright and tilted 45 degrees. The results showed that the reactor filter was effective in reducing coli 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.

MEMBANDINGAKAN REGRESI 4 PL DAN LINIER FIT UNTUK VERIFIKASI HORMON 17β-ESTRADIOL MENGGUNAKAN METODE ELISA Sandiya, Arroofita Ani; Sa'adi, Ashon; Sudjarwo, Sudjarwo
Journal of Research and Technology Vol 5, No 1 (2019)
Publisher : Universitas Nahdlatul Ulama Sidoarjo

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One solution for infertile couples to get offspring is IVF, where one of the stages is a HOT procedure, at which stage there is an increase in steroid hormone levels (estrogen) as a result of the development of ovarian follicles. The 17β-estradiol hormone was chosen to be verified because it can be used as a marker or marker to show the maturity of the follicle. Linear and logistic regression are the two most commonly used in curve making models for sandwich immunoassays. Although linear regression may be useful when analyzing samples included in the linear part of the analyte response curve, logistic regression is the preferred type of regression for multiplex immunoassays. Verification of the 17β estradiol hormone regression results using linear fit obtained the result of r = 0.952 while the regression value used 4 PL to get the result r = 0.998. But the results shown in the verification of the 17β estradiol hormone are good, this is evidenced by the use of SPSS software where F = 78.712 is obtained, where the value is greater than the value of F table (6.61) which means the value of independent variable (concentration) on value of the dependent variable (optical density value). The linearity values obtained through verification using the 4PL model indicate that the method is better linearity reported based on Linear regression.

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Contact Name
Muchammad Tamyiz

Contact Email
muchammad_tamyiz@yahoo.com

Phone
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Journal Mail Official
muchammad_tamyiz@yahoo.com

Editorial Address
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Location
Kab. sidoarjo,

Jawa timur

INDONESIA