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All Journal Reaktor TEKNIK U Karst Journal of Environment and Sustainability Journal of Research and Technology Jukung (Jurnal Teknik Lingkungan) Prosiding Seminar Nasional Sains dan Teknologi Terapan Media Karya Kesehatan Prosiding Seminar Teknologi Kebumian dan Kelautan (SEMITAN Journal of Earth and Marine Technology (JEMT) Journal of Applied Sciences, Management and Engineering Technology (JASMET) Jurnal Teknologi Lingkungan Lahan Basah Environmental Engineering Journal ITATS SERUNAI Journal of Civil Engineering, Planning, and Design (JCEPD) Jurnal Meteorologi dan Geofisika
Maritha Nilam Kusuma
Institut Teknologi Adhi Tama Surabaya
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JEJAK KAKI KARBON PADA INDUSTRI AIR MINUM DALAM KEMASAN Kusuma, Maritha Nilam
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.v1i1.340

Abstract

PT. XYZ is one of industry that has a potential in green house gas emission that produce negative effect on human and environment. Therefore the study was aimed to investigate how much carbon value produced by PT. XYZ and how is the alternative solution to reduce carbon emission.The study method was based on secondary data such as; electricity, water and fuel consumption for one year taken from January until October 2009. The data was analyzed using CWFP, SEI, and ACM0002 methods for carbon emission value. The solution alternative for reducing carbon emission of PT. XYZ, was compared between electricity, natural gas and coal. It was concluded that, emission carbon value of PT. XYZ is 6.966,69 Tonnes CO2/years.
FAKTOR EMISI ENERGI TIDAK TERBARUKAN PADA PEMBANGKIT LISTRIK JAWA TIMUR Kusuma, Maritha Nilam
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.v1i1.358

Abstract

Carbon emission that emited by electric plant in Jawa timur could be estimated. Estimation was done by emission factor calculation first. Emission factor was multipled with electric consumption value to got emmison carbon value. The method used ACM0002 that issued by CDM-PDD Version02 IPCC. Data supporting are NVC, SFC and CEF. The result could be found that coal and natural gas have emmision there are 1,00688434 Ton CO2/Mwh and 0,392860328 Ton CO2/Mwh.
Surabaya land cover prediction based on Landsat Satellite using the Multi-layer Perceptron Method Prayuda, Shanas Septy; Kusuma, Maritha Nilam
Journal of Earth and Marine Technology (JEMT) Vol 3, No 2 (2023)
Publisher : Lembaga Penelititan dan Pengabdian kepada Masyarakat - Institut Teknologi Adhi Tama Suraba

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31284/j.jemt.2023.v3i2.4321

Abstract

Infrastructure development has occurred very rapidly in Surabaya in the last few decades. There is pressure on the need for land use in line with the increase in population. This study aims to analyze changes in land cover with inter-decade analysis and predict land cover in 2021-2030 in Surabaya using the Multi-Layer Perceptron method. The data used in this research is Landsat satellite which is considered good in representing the actual land cover. A decrease in the amount of vegetation occurs every decade in Surabaya, while the number of buildings is increasing and the bodies of water are relatively the same. The Multi-Layer Perceptron method has a good level of accuracy in predicting land cover in the city of Surabaya. In 2021-2030 it is predicted that Surabaya will still experience an increase in the number of buildings and a decrease in the amount of vegetation.
Optimizing the Construction of the NUWSP SPAM Piping Network in Gresik Regency Latif, Abdul; Kusuma, Maritha Nilam
Journal of Civil Engineering, Planning and Design Vol 2, No 1 (2023): May
Publisher : Faculty of Civil Engeneering and Planning - ITATS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31284/j.jcepd.2023.v2i1.3746

Abstract

Water is essential for all living things, including humans. Water, both in terms of quality and quantity, will have an effect on human life. The Indonesian government is preparing the National Urban Drinking Water Supply Plan (NUWSP) with assistance from the World Bank. A significant portion of the Bank's financial resources are allocated to technical assistance and capacity building in support of the Indonesian government's infrastructure expenditures in all urban water distribution platforms. The NUWSP Work was implemented during an 11-month period, from November 18, 2021 to August 22, 2022, with the NUWSP Work Location at Gresik Regency in East Java. During the data collection stages, both primary and secondary data were obtained. The drinking water supply system (SPAM) planning stage comprises calculating BOQ and RAB, as well as DED for drinking water, and planning for the drinking water JDU system. The contractor takes measurements and standards before installing a field-specific bow plank at the tying point. To avoid pipe damage, individual pipe fittings must be lowered into the trench using the right equipment. The volume of excavation is computed using a depth of 180 cm, a breadth of 60 cm, and a length of excavation of 31 km from six pieces of a pipeline. The Bill of Quantity (BOQ) and Budget Plan (RAB) necessary to complete the SPAM pipeline network work in Gresik Regency were IDR 27,823,590,000.00, based on the results and discussion of the Optimization of SPAM Network Work (NUWSP) in Gresik Regency.
Implementation of government regulation on Disposable Plastic Reduction at Surabaya Hanik, Siti Umi; Kusuma, Maritha Nilam
Journal of Civil Engineering, Planning and Design Vol 1, No 2 (2022): November
Publisher : Faculty of Civil Engeneering and Planning - ITATS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31284/j.jcepd.2022.v1i2.3685

Abstract

Plastic has the advantage of being durable, cheap, and easy to get everywhere and we are increasingly dependent. And most of the plastics we use are single-use plastics, as a result, if they are not managed properly, they will become waste and have a negative impact on the environment. With the decomposition period which is too long, which is 100-500 years, this will be a problem if it is not managed properly, such as being burned which has a bad impact on health, or being disposed of carelessly in the end until it reaches the sea and will cause damage to the marine ecosystem. The issuance of Mayor Regulation No. 16 of 2022 which regulates the reduction of single-use plastic in the city of Surabaya is expected to maintain environmental sustainability and reduce the generation of waste entering the Final Processing Site. The purpose of this study is to know or analyze the extent of the implementation of Mayor Regulation No. 16 of 2022 regarding the reduction of single-use plastic in the city of Surabaya. The research method used is normative juridical, namely by analyzing problems based on applicable regulations and also the literature that discusses the problem. And the results of this study are that it can be stated that these regulations, namely regulations for reducing single-use plastics, can be obeyed and carried out well by several parties, namely from the community, business actors, modern shops, retail, restaurants, hotels, and supermarkets. And there needs to be socialization, and monitoring for the enforcement of this regulation so that it is carried out optimally.
Planning of Sewage Sludge Treatment Plant Poso Regency Huda, Ahmad Syaeful; Kusuma, Maritha Nilam
Journal of Civil Engineering, Planning and Design Vol 1, No 2 (2022): November
Publisher : Faculty of Civil Engeneering and Planning - ITATS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31284/j.jcepd.2022.v1i2.3686

Abstract

In order to process the fecal sludge that is collected from the residents of Poso Regency, a Sewage Sludge Treatment Plant has been built. For the purpose of treating sewage sludge, this facility is one method utilized to enhance wastewater quality. There is a Sewage Sludge Treatment Plant in Poso Regency, however, it is in disrepair and cannot meet current needs. In light of this, Poso Regency needs cutting-edge technology for treating sewage sludge. The goal of this research was to establish the average entry of fecal sludge and its volume for Poso Regency to create an appropriate system that meets all requirements set forth by the Ministry of Public Works.
The Management of Medium Hazard Potential at Trimitra Sejati Jaya Ltd (Glue Production) Kusuma, Maritha Nilam; Madinah, Safira Aulia
Journal of Civil Engineering, Planning and Design Vol 1, No 1 (2022): May
Publisher : Faculty of Civil Engeneering and Planning - ITATS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31284/j.jcepd.2022.v1i1.3056

Abstract

All industrial activities that use, store, produce, and transport hazardous chemicals in the workplace are required to control hazardous chemical to prevent occupational accidents and work-related diseases. Trimitra Sejati Jaya Ltd is a company engaged in the manufacturing industry that produces wood glue, paper glue, packaging, PVAc white glue, and hotmelt adhesive. In its working activities, Trimitra Sejati Jaya Ltd has a risks and hazards impact that requires medium hazard potential management. This research is a descriptive study that was conducted objectively to determine the control of medium hazard potential in Trimitra Sejati Jaya Ltd. The objective of this research is to find out the actual conditions in the field compared to the compatibility of the laws and regulations. Hazard identification, risk assessment and control at Trimitra Sejati Jaya Ltd were carried out using the HIRARC method. The level of risk dominating the work activities in this company was categorized as medium risk. Technical activities, design, construction, chemical material selection, as well as operation and maintenance of installations at Trimitra Sejati Jaya Ltd have been performed in accordance to the company regulations. Trimitra Sejati Jaya Ltd has several employees development activities, such as waste management and handling training and socialization, personal protective equipment usage socialization, fire fighting socialization, and internal briefings that have been carried out for several times. There are existed emergency response plan and procedures such as evacuation routes and assembly points signs, as well as provide fire extinguishers and first aid kits. There are no safe work procedure implemented at Trimitra Sejati Jaya Ltd yet, it only oriented on the existed Quality Management System
Kinerja Proses Hibrid Aerasi Bubble-Filtrasi pada Penyisihan Mangan dan Kekeruhan dalam Air Sumur Radityaningrum, Arlini Dyah; Ichsan, Muchammad; Kusuma, Maritha Nilam
TEKNIK Vol 45, No 2 (2024): August 2024
Publisher : Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/teknik.v45i2.57735

Abstract

Tingginya konsentrasi Mangan (Mn(II)) dan kekeruhan dalam air sumur yang digunakan untuk air minum berdampak negatif pada kesehatan manusia. Proses hibrid aerasi bubble-filtrasi merupakan alternatif pengolahan dalam penyisihan Mn(II) dan kekeruhan. Microbubble dapat digunakan dalam proses aerasi untuk meningkatkan konsentrasi Dissolved Oxygen (DO) dalam air. Diameter microbubble mempengaruhi konsentrasi DO yang digunakan dalam proses oksidasi Mn(II). Penelitian ini bertujuan untuk a) menentukan konsentrasi DO dalam air setelah proses aerasi, b) mengkaji kinerja proses hibrid aerasi bubble-filtrasi untuk  menyisihkan konsentrasi Mn(II) dan kekeruhan dalam air. Aerasi microbubble dioperasikan menggunakan venturi injektor dengan variasi diameter nozel dan waktu kontak. Media filter yang digunakan adalah pasir silika, manganese greensand, dan zeolit. Sampel uji diambil di inlet aerasi dan outlet filtrasi. Pengambilan sampel uji dilakukan secara semi-intermiten, pada menit ke-20, 35, dan 50, dengan dua kali pengulangan. Konsentrasi DO tertinggi (6,31 mg/L) dihasilkan dari proses hibrid menggunakan diameter nozel 6 mm dengan waktu kontak 50 menit. Konsentrasi Mn(II) terendah (0,12 mg/L) diperoleh pada proses hibrid yang menggunakan nozel berdiameter 7 mm, dengan efisiensi penyisihan 94%. Efisiensi penyisihan kekeruhan tertinggi (60%) adalah pada proses hibrid yang menggunakan diameter nozel 7 mm, dengan nilai kekeruhan yang dicapai sebesar 14,36 NTU.
Pendayagunaan Limbah Buah Sebagai Pupuk Organik Cair Dengan Metode Fermentasi EM4 Kusuma, Maritha Nilam; Muharamin, Amrozy; Darma, Dimas Wahyu Surya; Syafitri, Ellisa Dwi; Ardhana, Inka Muthia; Shobriyah, Hamas Hijrotush; Sholihah, Maratus; At-Thayyibi, Muhammad Hafizhni
Prosiding Seminar Nasional Sains dan Teknologi Terapan 2022: Energi Terbarukan dan Keberlanjutannya di Berbagai Sektor
Publisher : Institut Teknologi Adhi Tama Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Sisa hasil buah bisa menjadi produksi pupuk organik golongan cair serta menambahkan EM4 yang berfungsi mempercepat proses fermentasi atau sebagai activator karena memiliki kandungan mikroorganisme yang dapat memecah senyawa polimer menjadi monomernya. Dalam penelitian ini menggunakan percobaan eksperimental menggunakan metode fermentasi. Bahan yang digunakan yaitu sisa buah yang tidak dikonsumsi, EM4 (Effective Microorganisme), gula merah dan air. Ada beberapa variabel yang ditentukan dalam percobaan ini, yaitu variabel tetap, variabel terikat, dan variabel bebas. Variabel tetap yang ditentukan dalam percobaan ini merupakan jumlah limbah buah-buahan yang digunakan yaitu sebanyak 6000 gr; volume air gula merah sejumlah 1800 ml; dan volume EM4 yaitu 180 ml. Selain itu, terdapat variabel terikat; yakni uji pH; uji suhu; uji warna; dan juga uji bau. Sedangkan variabel bebas yang digunakan adalah waktu fermentasi yaitu 7 hari. Hasil dari penelitian hari ke-7 nilai pH sebesar 3,7, nilai suhu dari 24 meningkat menadi 32,6, warna pupuk cair dihari pertama cenderung coklat yang berasal dari gula merah dan EM4 kemudian secara perlahan warna dari pupuk berubah menjadi warna kuning, sedangkan bau tidak terlalu menyengat dan lebih menyerupai tape. Dari air gula sebanyak 1800 ml dan 180 ml EM4 menggunakan limbah buah-buahan menghasilkan pupuk organik cair sebanyak 800 ml.
Analisis Kualitas Air Tanah Dangkal dengan Parameter Fisik- Kimia Di Kota Dili, Timor – Leste Ximenes, Livio Xavier; Kusuma, Maritha Nilam
Environmental Engineering Journal ITATS Vol 4, No 2 (2024): Environmental Engineering Journal ITATS
Publisher : Teknik Lingkungan, Institut Teknologi Adhi Tama Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31284/j.envitats.2024.v4i2.6547

Abstract

Dili City is located on the northern coast of Timor Island. Geologically, the interaction between the Australian and Eurasian tectonic plates has formed the Dili Basin. Most residents of Dili still rely on well water or groundwater to meet their daily water needs without further assessment of the suitability of the groundwater. Therefore, the researcher tested the quality of groundwater according to its physicochemical parameters. This research employed laboratory observation methods to determine the concentration values in the groundwater of the Dili area and compare them with several regulations regarding the standards of raw water quality. The results of this study showed that the Dili area had various concentrations of pH, TDS, DO, and salinity, with the highest values of 6.14, 598 ppm, 183 ppm, and 675 ppt, respectively. The groundwater quality in the Dili area fell into the hazardous category, as the salinity concentration was 2.1 ppt and DO was 6 ppm.
Co-Authors Abdul Latif Abdul Latif Adityo Tri Wicaksono Agus Budianto Ahmad Muhajirin Amrozy Muharamin Ardhana, Inka Muthia Arlini Dyah Radityaningrum At-Thayyibi, Muhammad Hafizhni Atiyatussa'adah, Eva Bagus Yossy Harnawan Baswara Yua Kristama Budisantoso Wirjodirdjo Darma, Dimas Wahyu Surya Dewi, Intan Suksma Dimas Wahyu Surya Darma Doa, Yakobus Ellisa Dwi Syafitri Fadilah, Hana Faizah Gervasius Herry Purwoko H. Refaldin H. Refaldin H. Refaldin, H. Refaldin Hamas Hijrotush Shobriyah Hana Faizah Fadilah Hana Faizah Fadilah Hanik, Siti Umi Helmi Kristiawan Huda, Ahmad Syaeful Inka Muthia Ardhana Intan Suksma Dewi JE Sutanto Jenny Caroline Jenny Caroline Kasianus Kelvin Tanga Kristiawan, Helmi Kusdarini, Esthi Madinah, Safira Aulia Mahardikha, Emanuel Maratus Sholihah Maratus Sholihah, Maratus Miyana, Ade Wahyu Achmad Muchammad Ichsan Muhammad Hafizhni At-Thayyibi Muharamin, Amrozy Musarofa, Musarofa Musarofa, Musarofa Nieke Karnaningroem Nieke Karnaningroem Pratiknyo, Yuwono Budi Prayuda, Shanas Septy Purwaningrum, Sri Wulan Rachmanu Eko Handriyanto Rachmanu Eko Handriyono Revalandro, Gorin Rini, Titien Setiyo Ro'du Dhuha Afrianisa Rodu Dhuha Afrianisa Shanas Septy Prayuda Shobriyah, Hamas Hijrotush Sonia S. Ximenes Sonia S. Ximenes Sri Wulan Purwaningrum Suwanto, Yudha Eka Putra Syafitri, Ellisa Dwi Talent Nia Pramestyawati Talentnia Pramestyawati Tanga, Kasianus Kelvin Wahyono Hadi Ximenes, Livio Xavier Ximenes, Sonia S. Yulfiah Yulfiah Yulfiah Yulfiah Yulfiah, Yulfiah