Jurnal Riset Teknologi Pencegahan Pencemaran Industri http://jrtppi.id/index.php/jrtppi <section class="additional_content col-md-12"> <p align="justify"><strong><img style="float: left; width: 200px; margin-top: 8px; margin-right: 10px;" src="https://jrtppi.id/public/site/images/januarfa/thumbnail.png" />Jurnal Riset Teknologi Pencegahan Pencemaran Industri</strong> is published biannualy by the Balai Besar Standarisasi dan Pelayanan Jasa Pencegahan Pencemaran Industri, this is technological optimization agency under Badan Standarisasi dan Kebijakan Jasa Industri of Ministry of Industry Republic Indonesia. The <strong>Jurnal Riset Teknologi Pencegahan Pencemaran Industri</strong> covers a broad spectrum of the science and technology of air, soil, and water pollution management and control while emphasizing scientific and engineering solutions to environmental issues encountered in industrialization. Particularly, interdisciplinary topics and multi-regional/global impacts of environmental pollution, advance material, and energy as well as scientific and engineering aspects of novel technologies are considered favorably.</p> <p align="justify"> </p> <p align="justify"> </p> <p align="justify">The scope of the Journal includes the following areas, but is not limited to:</p> <ul> <li> <p align="justify"><strong>Environmental Technology, </strong>within the area of air pollution technology, wastewater treatment technology, and management of solid waste and harzardous toxic substance</p> </li> <li> <p align="justify"><strong>Process technology and simulation</strong>, technology and/or simulation in industrial production process aims to minimize waste and environmental degradation</p> </li> <li> <p align="justify"><strong>Design Engineering</strong>, device engineering to improve process efficiency, measurement accuracy and to detect pollutant</p> </li> <li> <p align="justify"><strong>Material fabrication</strong>, environmental friendly material fabrication as subtitution material for industry</p> </li> <li> <p align="justify"><strong>Energy Conservation</strong>, process engineering / technology / conservation of resources for energy generation.</p> </li> </ul> <p align="justify">All published articles will have a unique <strong>Digital Object Identifier</strong> (DOI) number. <strong>Jurnal Riset Teknologi Pencegahan Pencemaran Industri</strong> provides immediate open access to its content on the principle that making research freely available to the public supports a greater global exchange of knowledge. <strong>Jurnal Riset Teknologi Pencegahan Pencemaran Industri</strong> is an open access journal and peer-reviewed that publishes either original article or reviews.</p> </section> en-US <p>Jurnal Riset Teknologi Pencegahan Pencemaran Industri provides immediate open access to its content on the principle that making research freely available to the public to supports a greater global exchange of knowledge.</p> <p><strong>Copyright Notice</strong></p> <p>Authors who publish with this journal agree to the following terms:</p> <ol> <li>Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under a Creative Commons Attribution License that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal.</li> <li>Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgement of its initial publication in this journal.</li> <li>Authors are permitted and encouraged to post their work online (e.g., in institutional repositories or on their website) prior to and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published work</li> </ol> jurnalrisettppi@gmail.com (Ikha Rasti Julia Sari) jurnalrisettppi@gmail.com (Farida Crisnaningtyas) Thu, 10 Nov 2022 12:08:20 +0700 OJS http://blogs.law.harvard.edu/tech/rss 60 Identifying Concentration of Carbon Dioxide at Heights of 1.5 M and 15 M in Six Locations in Urban Areas http://jrtppi.id/index.php/jrtppi/article/view/136 <p><em>Several activities in urban areas emit CO<sub>2</sub> gas and the amount of the emission is closely related to land use. This will, in turn, increase global warming phenomena in urban areas. So far, the estimation of pollutant concentrations in the ambient air has been carried out at the height of human breath, and very rarely the concentration values at low-level altitudes have been studied in Indonesia. This study tries to analyze the CO<sub>2</sub> concentration based on different altitudes and different locations.</em></p> <p><em>Measurements of this study were carried out in industrial, residential, commercial, and highway areas using drones at two altitudes of 1.5 m and 15 m. The use of altitude variations to know the homogeneity of CO<sub>2</sub> spatial distribution at different heights. The results of the study showed CO<sub>2</sub> concentrations on weekday mornings and afternoons, and weekend mornings in the sampling areas at 1.5 m and 15 m in the range of 393 – 462 ppm and 391 – 460 ppm, respectively. The statistical test showed that there is no significant CO<sub>2</sub> concentration difference between altitudes of 1.5 m and 15 m, with only a 0.17% difference value on average. The Tugu Industrial Estate area has the highest concentration of CO<sub>2</sub>, while the area on Jalan Perintis Kemerdekaan has the lowest concentration.</em></p> Haryono Setiyo Huboyo, Okto Risdianto Manullang, Budi P Samadikun Copyright (c) 2022 Haryono Setiyo Huboyo, Okto Risdianto Manullang, Budi P Samadikun https://creativecommons.org/licenses/by-nc-sa/4.0 http://jrtppi.id/index.php/jrtppi/article/view/136 Thu, 10 Nov 2022 00:00:00 +0700 Evaluation of the Implementation Integrated Biological System Industrial Wastewater Treatment Plant: Pollutant Removal, Operational Maintenance, Estimation of Carbon Emission http://jrtppi.id/index.php/jrtppi/article/view/150 <p><em>The development of WWTP in business activities needs to pay attention to getting appropriate WWTP that is more valuable to support sustainable development. This study aims to evaluate two systems of integrated biological WWTP; anaerobic-wetland, and anaerobic-aerobic-wetland, including the effectiveness of pollutant removal, operational and maintenance, and estimation of carbon emissions. The performance of pollutant removal was evaluated by analyzing inlet and outlet samples of WWTP. An operational and maintenance evaluation was carried out by studying the WWTP operating system and maintenance procedures supported by a literature review. Carbon emission estimation was carried out using a formula referring to the IPCC Guidelines (2006). Organic matter removal of anaerobic-aerobic-wetland WWTP in the form of BOD₅ and COD are 92.12% and 91.72%, respectively, higher than anaerobic-wetland WWTP are 88.69% of BOD₅ and 77.62% of COD. Anaerobic-aerobic-wetland WWTP needs more maintenance and operation than anaerobic-wetland WWTP. The highest carbon emission of both WWTP is 41530.91 kgCO₂ eq/year of anaerobic-wetland WWTP from the organic matter removal process and 46485.15 kgCO₂ eq/year of anaerobic-aerobic-wetland WWTP. Electrical energy consumption emits in anaerobic-aerobic-wetland WWTP is 22338 kgCO₂ eq/year higher than anaerobic-wetland WWTP at 4299.70 kgCO₂ eq/year. Total carbon emissions of anaerobic-wetland WWTP is 47404.58 kgCO₂ eq/year and anaerobic-aerobic-wetland WWTP is 68900.23 kgCO₂ eq/year.</em></p> Nanik Indah Setianingsih, Farida Crisnaningtyas, Agus Purwanto, Ikha Rasti Julia Sari Copyright (c) 2022 Nanik Indah Setianingsih, Farida Crisnaningtyas, Agus Purwanto, Ikha Rasti Julia Sari https://creativecommons.org/licenses/by-nc-sa/4.0 http://jrtppi.id/index.php/jrtppi/article/view/150 Thu, 10 Nov 2022 00:00:00 +0700 The Effect of Bentonite and Palm Shell Ash on The Mechanical and Physical Properties of Geopolymer Concrete http://jrtppi.id/index.php/jrtppi/article/view/140 <p><em>Geopolymer concrete is an alternative to obtaining environmentally friendly mortar by synthesizing materials that contain a lot of aluminum silicate. This study aims to determine the effect of bentonite and palm shell ash composition on geopolymers' physical and mechanical characteristics. All materials are mashed, mixed, and molded with a 5x5x5 cm<sup>3</sup> cube. Ten specimens were prepared with bentonite - palm shell ash compositions are 40/45, 45/40, 50/35, 55/30, and 60/25 wt%. Meanwhile, the composition of NaOH, Na<sub>2</sub>SiO<sub>3</sub>, superplasticizer and water remained at 1.3, 7.7, 2, and 5 wt%, respectively. Then the samples were dried at room temperature for 24 hrs and heated at 60 °C or 80 °C for 12 hrs. The geopolymer concrete with the best characteristics was obtained with a composition of 40 wt% bentonites and 45 wt% palm shell ash by heating at 80 °C. This specimen has a compressive strength of 11.94 MPa with a density of 2.42 g/cm<sup>3</sup>, porosity of 8.43%, and absorption of 3.48%. The results have a chemical composition of 55.59% SiO₂, 9.45% Al<sub>2</sub>O<sub>3</sub>, and 8.22 Fe<sub>2</sub>O<sub>3</sub> with a dominant quartz phase. Scanning electron microscope photo shows good bonding between particles, and there are no pores formed.</em></p> Yusup Hendronursito, Muhammad Amin; Yugo Chambioso; Suharto, Roniyus Marjunus Copyright (c) 2022 Yusup Hendronursito, Muhammad Amin; Yugo Chambioso; Suharto, Roniyus Marjunus https://creativecommons.org/licenses/by-nc-sa/4.0 http://jrtppi.id/index.php/jrtppi/article/view/140 Thu, 10 Nov 2022 00:00:00 +0700 The Kinetic Analysis and Adsorption Isotherm of Chicken Egg Shells and Membranes Against Synthetic Dyes http://jrtppi.id/index.php/jrtppi/article/view/143 <p><em>Textile industry waste at this time is enough to worry the community and the environment. The presence of synthetic dyes in water is hazardous, even in small concentrations. These synthetic dyes are derivatives of aromatic compounds such as benzene, toluene, and naphthalene, which are more resistant and stable than natural dyes. The adsorption method is used because it is easier to do, has no side effects, and does not require complicated and expensive equipment. In this study, the shells and membranes of discarded chicken eggs became useful as an absorbent of indigo carmine dye with an adsorption capacity of 6.399 mg/g. The adsorption reaction kinetics were analyzed from the optimal contact time data, and the reaction isotherm was analyzed from the adsorption optimal concentration data. The kinetic model that fits the research is the second pseudo-order with R<sup>2</sup> = 0.9998. The adsorption mechanism demonstrates that the adsorption capacity is proportional to the adsorbent's active sites. The adsorption isotherm model, with R<sup>2</sup> = 0.9748, is more closely related to the Freundlich isotherm model, indicating that adsorption occurs in several layers. From an economic point of view, chicken egg shells and membranes can be recommended as dye absorbers that are eco-friendly, efficient, and simple to obtain while lowering organic solid waste.</em></p> Linda Hevira, Gampito Copyright (c) 2022 Linda Hevira, Gampito https://creativecommons.org/licenses/by-nc-sa/4.0 http://jrtppi.id/index.php/jrtppi/article/view/143 Thu, 10 Nov 2022 00:00:00 +0700 Analysis of Potential Utilization of Sarulla Geothermal Combined Cycle Residual Fluids for Direct Use in The Coffee Industry http://jrtppi.id/index.php/jrtppi/article/view/148 <p><em>The Geothermal Power Plant is one of the new renewable energy power plants. In Indonesia, the realization has reached 2%. Sarulla Operations Limited is the first geothermal power plant in Indonesia, located in North Tapanuli Regency, that utilizes combined cycle technology. Coffee is the leading commodity in the North Tapanuli district, with a plant area of 17,586 hectares. Coffee is dried in the traditional way (open field drying) so that it is still constrained by rain and cloudiness and can only be done during the day. The reinjection well fluid has a temperature of 103<sup>°</sup>C with a flow rate of 4978 t/h and a pressure of 6–14 Bar. This study analyses the residual fluid energy for coffee drying purposes. Energy and exergy calculations are done manually and using DWSIM software with a total of 24 data points 24 hours a day to represent the availability of dryers both day and night. The results showed that the most energy needed to raise the drying air temperature at night from 15°C to 60°C was 125.62 kW, while the lowest energy needed to raise the drying air temperature during the day from 30°C to 40°C was 27.92 kW. The results of research calculations show the energy potential for residual fluid from geothermal plants to be used for drying coffee for 24 hours, both day and night.</em></p> Jonius Christian Harefa, Hadiyanto, Udi Harmoko Copyright (c) 2022 Jonius Christian Harefa, Hadiyanto, Udi Harmoko https://creativecommons.org/licenses/by-nc-sa/4.0 http://jrtppi.id/index.php/jrtppi/article/view/148 Thu, 10 Nov 2022 00:00:00 +0700