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Nusantara Science and Technology Proceedings
Published by Future Science
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Articles 45 Documents
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Search results for , issue "1st International Conference Eco-Innovation in Science, Engineering, and Technology" : 45 Documents clear
Production of Briquette Made of Sugarcase Bagasse and Dry Leaves Mixture by Microwave Torrefaction Using Tapioca Flour as Adhesive Gina Ayuningtiyas; Faris Harditya; Erlinda Ningsih
Nusantara Science and Technology Proceedings 1st International Conference Eco-Innovation in Science, Engineering, and Technology
Publisher : Future Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11594/nstp.2020.0521

Abstract

The purpose of the research was to identify the effect of time and microwave torrefaction power to heat value, water content, and ash content to recognize the maximum condition of the selected variables. Biomass waste and garbage can be one energy resource alternatives. The real exploitation of biomass resulted from forestry and estate activity waste that has been widely adopted is found in the production of briquette and charcoal. We adopted sugarcane bagasse and dry leaves mixture was to generate greater contents of cellulose and lignin to get higher heat value. One of the methods commonly adopted in briquette productions is microwave torrefaction. The process in the research covered raw material drying, slicing, microwave torrefaction, proximate analysis, data processing, and research finding discussion. The torrefaction process was activated by reacting to the raw materials, i.e.: sugarcane bagasse and dry leaves into a microwave under 230'C through 280oC in airtight condition and in a short time. The variables in the research were microwave power and torrefaction time. The microwave power was set at 80 W, 400 W, and 800 W, while the ten faction time set 5 minutes, 15 minutes, and 25 minutes. Based on the results of the research it was concluded that the most optimum variables were microwave power of 800 W and torrefaction time of 25 minutes.
Physicochemical and Organoleptic Characteristics of Seasoning from Tempe Hydrolysates using Long Treatment of Fermentation and Proteolytic Enzyme Proportion Kalisa Mawarni Putri; Sri Winarti; Sri Djajati
Nusantara Science and Technology Proceedings 1st International Conference Eco-Innovation in Science, Engineering, and Technology
Publisher : Future Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11594/nstp.2020.0511

Abstract

Tempeh is a native Nusantara food that is often found in traditional Indonesian markets. Over fermentation, due to unsold, they are called over fermented tempeh resulted in non-optimum utilization. Alternative utilizations that can be used is as a seasoning. The making of seasoning can be done by the hydrolysis technique using the protease enzyme of biduri and papain. This study aimed to determine the effect of fermentation time and the proportion of proteolytic enzyme on the physicochemical and organoleptic properties of seasoning from tempeh hydrolysates. The experimental design used was a factorial pattern CRD with two factors. Factor I is tempeh fermentation time (18 hours and 72 hours), while factor II is the enzyme proportion of biduri and papain (0%: 100%; 25%: 75%; 50%: 50%; 75%: 25%; and 100 %: 0%). The best treatment is 72 hours fermentation duration and the enzyme proportion of biduri and papain (50%: 50%) which produces a seasoning powder with the following characteristics: the degree of hydrolysis 82.32%; dissolved protein 58.85%; moisture 7.89%; water solubility index 0.09 gr/ml; oil absorption 0.78 ml/gr, yield 9.32%, organoleptic to taste 3.93 (savory), aroma 3.40 (somewhat pleasant), and color 1.13 (very white), and glutamic acid content 59, 93 mg/100 gr.
Performance of Spirulina Platensis in Oxidation Ditch Reactor for treating To-fu Wastewater Lolita Kurniasari; Savira Safrilia; Ni Made Maya Febriana Ramadhany; Iqbal Ramadhan; Euis Nurul Hidayah
Nusantara Science and Technology Proceedings 1st International Conference Eco-Innovation in Science, Engineering, and Technology
Publisher : Future Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11594/nstp.2020.0512

Abstract

Spirulina platensis is a type of blue - green algae that has a micro-sized spiral shape and lives in marine waters. There are so many benefits of this microalgae, one of which is it can degrade organic pollutants in wastewater. Excessive nitrate and phosphate in the water can cause eutrophication which is indicated by the death of many sea biotas because of phytoplankton bloom. In this research, tofu which high in organic pollutants are used as experimental test media. The microalgae which will be tested is cultivated first to obtain a sufficient amount for research, then the microalgae are acclimatized before being put into an Oxidation Ditch Reactor mixed with tofu waste with a capacity of 250 liters, ran with 60 rpm brush aerator for 7 x 24 hours and also uses natural lighting from sunlight. samples were taken once a day at 12 noon each day. This research has a variety of wastewater: algae that are 1:1. From the results, it can be observed that Spirulina platensis microalgae could reduce maximum phosphate by 33,15 %, from 18,1 mg/L to 12,1 mg/. Furthermore, microalgae also capable of decreasing nitrates by 46,07 from 0,89 mg/L to 0,48 mg/L.
Integrating CBS and WBS in Construction Projects by Using Data Analytics Mik Wanul Khosiin; Wei-Chih Wang; Indradi Wijatmiko
Nusantara Science and Technology Proceedings 1st International Conference Eco-Innovation in Science, Engineering, and Technology
Publisher : Future Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11594/nstp.2020.0513

Abstract

In Indonesia, project databases are not well managed, covering hundreds or thousands of cost items and work items from construction projects. This condition becomes more complex when operators are required to integrate between CBS and WBS, which requires extra effort to perform detailed, rush, and accurate grouping. This study attempts to demonstrate the role of data science in managing CBS and WBS through the code system method in the pivot table. The analysis process requires four stages, step 1. data preparation, step 2. item relationship, step 3. code system analysis, and step 4. validation and evaluation. The results showed that the codes applied including A1001-A1003 have CBS and WBS derivatives in a systematic and well-structured manner so that automatically the calculation of the quantity and cost that accompanies each of these items obtains accurate results. This article is expected to provide options for field practitioners to perform data management to be efficient and productive for the continuity of construction projects going forward.
Hard Anodize of 6061-T0 Aluminium Alloy in Sulfuric Acid Bath at Near Zero Temperature and Its Mechanical Properties Ndaru Adyono; Wahyu Dwi Lestari
Nusantara Science and Technology Proceedings 1st International Conference Eco-Innovation in Science, Engineering, and Technology
Publisher : Future Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11594/nstp.2020.0514

Abstract

All articles must contain an abstract. The abstract text should be formatted using 10 point Times New Roman and indented 20 mm from the left margin. The abstract should give readers concise information about the content of the article and indicate the main results obtained and conclusions drawn. The abstract is not part of the text and should be complete in itself; no table numbers, figure numbers, references, or displayed mathematical expressions should be included. It should be suitable for direct inclusion in abstracting services and should not normally exceed 200 words in a single paragraph.
Oxidation Ditch Reactor to Remove Ammonia and Phosphate in Tofu Wastewater and Skin Tanning Wastewater Ni Made Maya Febriana Ramadhany; Savira Safrialia; Lolita Kurniasari; Iqbal Ramadhan; Euis Nurul Hidayah; Aulia Ulfa Farahdiba
Nusantara Science and Technology Proceedings 1st International Conference Eco-Innovation in Science, Engineering, and Technology
Publisher : Future Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11594/nstp.2020.0515

Abstract

Wastewater containing various types of environmental pollutants, for example, Ammonia and phosphate. Wastewater disposal without proper handling will have an impact on environmental quality degradation, so it is necessary to wastewater treatment using an oxidation ditch reactor with a capacity of 500 liters with an operational volume of 250 liters. The variation treatment in this study was by using tofu wastewater (T) and skin tanning wastewater (PK) with direct sunlight and aeration process with 60 rpm rotation speed for 24 hours x 7 days. The results showed (T) was able to reduce the ammonia concentration by 94.1% from a value of 0.18 mg/L to 0.07 mg/L and a phosphate concentration of 75.3% from a value of 16.05 mg/L to 3.96 mg/L. Whereas the (PK) able to reduce the ammonia concentration by 94.1% from a value of 0.18 mg/L to 0.07 mg/L and a phosphate concentration of 41.4% from a value of 10.2 mg/L to 5.9 mg/L.
Application of Thomas Model to Determine the Capacity of Bintaro Fruit Shell Adsorbent Timothy Blessing; Okik Hendriyanto; Euis Nurul Hidayah; Anis Artyani
Nusantara Science and Technology Proceedings 1st International Conference Eco-Innovation in Science, Engineering, and Technology
Publisher : Future Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11594/nstp.2020.0516

Abstract

The increase in the electroplating industry resulted in a large number of heavy metal wastes that are harmful to the environment, for example, hexavalent chromium waste. The Bintaro which contains cellulose is considered as a potential adsorbent to remove heavy metals. Therefore, a comparative study on the adsorption capacity of continuous adsorption was carried out in reducing the concentration of heavy metal Cr6+ in electroplating wastewater. The characterization itself can be done by testing the moisture content and ash content and SEM testing. The study of the adsorption capacity in a continuous process is generally carried out with Thomas modeling, where this research is carried out by a continuous adsorption process with variations in the adsorbent mass of 50 grams, 100 grams, 150 grams, 200 grams, and 250 grams. The best results were obtained to remove Cr6+ metal which was 94.4% in the Bintaro shell adsorbent type with a mass of 250 grams. The continuous adsorption process obtained the highest Thomas constant (Kth) value and the highest adsorption capacity (qo), namely using Bintaro shell activated carbon with a mass of 250 grams with an absorbance capacity value of 0.443mg / g. The results showed that the activated carbon of Bintaro shell showed that they were quite effective as adsorbents in the adsorption process to remove heavy metal Cr6+
The Tribology Behaviour of Polycarbonate Urethane (PCU) as Advance Material on Biomedic Wahyu Dwi Lestari; Ndaru Adyono
Nusantara Science and Technology Proceedings 1st International Conference Eco-Innovation in Science, Engineering, and Technology
Publisher : Future Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11594/nstp.2020.0517

Abstract

End-stage osteoarthritis of the hip can be treated by replacing the joints using an artificial hip joint. Recent research states that polycarbonate urethane (PCU) can be used as an alternative bearing in UHMWPE material because of its better properties. This study aimed to determine the value of friction coefficient, the width of wear track, The volume of wear track, wear rate, and wear particle analysis. The method used is to test the wear of the PCU material using a pin on the disc tribometer machine. The wear test was carried out for 50,000 cycles with a loading of 500 grams and variations in speed (50 Rpm, 100 Rpm, 200 Rpm). The test is carried out in conditions without lubrication. The results of this study showed that the average friction coefficient of 50NL, 100 NL, and 200NL PCU discs were 0.114, 0.116, and 0.127, respectively. The width track values of the 50NL, 100 NL, and 200NL disc specimens were 2,679 mm, 4,168 mm, and 5,211 mm, respectively. The volumetric wear values of the 50 NL, 100 NL, and 200NL disc specimens were 76,428 mm3, 355,104 mm3, and 1049,328 mm3, respectively. The wear rate specimen disc values of 50NL, 100 NL and 200NL using the wear track calculation method were 1.352 x 10-3 mm3 / Nm, 6.283 x 10-3 mm3 / Nm, and 1.857 x 10-2 mm3 / Nm, respectively.
Borax as a Non-Food Grade Addivite in the Perspective of Foof Safety and Human Resources Formation: A Literature Review Yunita Satya Pratiwi; Dina Mustika Rini; Hadi Munarko; Hadi Prayitno; Ristya Widi Endah Yani; Nadia Shoukat; Kaleem Ahmad
Nusantara Science and Technology Proceedings 1st International Conference Eco-Innovation in Science, Engineering, and Technology
Publisher : Future Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11594/nstp.2020.0518

Abstract

Many foodborne disease cases are still existing in Indonesia and worldwide. Chemicals that act as non-food grade additives is one of the cause. Borax is a chemical which still widely used for food in the community. The purpose of writing this scientific article is to analyze the impact of using borax as a non-food grade additive from the perspective of food safety and human resource formation. This article was based on scientific phenomena that occurred in studies conducted by the author in private, which was then analyzed more deeply based on a study of theories. As mentioned in government law, the use of borax for food additives is prohibited. However, borax is still widely used as food additives in the communities. This phenomenon is a threat to the assurance of food security for individuals and society, which in turn will have an impact on the output quality of human resources needed as the subject of future development. Several studies, investigated the negative effects of borax on the biological function of living things, showed that the use of borax significantly affects food safety in terms of human resources formation. Therefore, it needs both a preventive and curative solution for individuals, groups, and the government in an integrated manner. The use of borax in food is a threat to the assurance of food safety for individuals and society, which in turn will affect the quality of human resources so that a preventive and curative solution is needed.
Analysis and Mapping of Changes in Salinity Concentration Influence by Acidity Value in Kwanyar Coastal, Bangkalan Madura District Siti Zainab; Novie Handajani; Hendrata Wibisana
Nusantara Science and Technology Proceedings 1st International Conference Eco-Innovation in Science, Engineering, and Technology
Publisher : Future Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11594/nstp.2020.0519

Abstract

Kwanyar in Bangkalan Madura district is an area that is not very fertile, the soil contains limestone and the coastal areas of the coast are the result of reclamation for several years. Thus, what used to be water areas turn into land. The purpose of this research is to map and analyze the effect of changes in acidity values on the coast with changes in salinity values that accompany them so that the most suitable mathematical model can be found to describe the coastal conditions of the Kwanyar area. The method developed to map and analyze is the use of remote sensing technology using Terra MODIS satellite imagery with a pixel resolution of 1 kilometer. The results obtained from a series of measurements carried out are that the most suitable wavelength for salinity mapping is 667 nanometers with an exponential mathematical model. This study concludes that the value of acidity in the aquatic environment is statistically sufficient to influence changes in the concentration of salinity in the Kwanyar area, Bangkalan Madura district

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