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Renanda Baghaz Dzulhamdhani Surya Putra
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Direktorat Riset dan Pengabdian kepada Masyarakat (DRPM), Lantai 7, Universitas Brawijaya Jl. Veteran Malang, 65145, Jawa Timur, Indonesia
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Journal of Environmental Engineering and Sustainable Technology
Published by Universitas Brawijaya
ISSN : 23563109     EISSN : 23563117     DOI : https://doi.org/10.21776/ub.jeest
Core Subject : Science, Social, Engineering,
Control & Systems Engineering Decision Sciences, Operations Research & Management Energy Environmental Science Mechanical Engineering
JEEST is an interdisciplinary and refereed journal, addresses matters related to environmental engineering and sustainable technology. Its range of themes encompasses ecological studies, field research, empirical work and descriptive analyses on topics such as environmental systems, environmental policies and politics, environmental legislation, environmental impact assessment, air, water and land pollution, water and energy related issues, engineering innovations, development, technical solutions and sustainability technology. Other matters related to or which influence the international debate on sustainability will be also considered.
Arjuna Subject : Ilmu Lingkungan (semua ketegori) - Ilmu Lingkungan (Lain-Lain)
Articles 8 Documents
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Search results for , issue "Vol 11, No 02 (2024)" : 8 Documents clear
REDUCING GREENHOUSE GAS (GHG) EMISSIONS THROUGH SOLAR CELL PHOTOVOLTAIC PLANNING AT AL-JIHAD ISLAMIC BOARDING SCHOOL IN SURABAYA Auvaria, Shinfi Wazna; Agung, Tri Sunan; Ruwantari, Ira Nur; Karami, Abdillah Akmal
Journal of Environmental Engineering and Sustainable Technology Vol 11, No 02 (2024)
Publisher : Directorate of Research and Community Service (DRPM)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jeest.2024.011.02.2

Abstract

Currently, 80% of conventional energy is used to meet the needs of industry and the general public. Using new, renewable energy from the sun is an effort to mitigate climate change by reducing greenhouse gases (GHG). Al-Jihad Boarding School, an Islamic educational institution with around 1,200 students, is one of the biggest consumers of conventional energy. This study aims to plan photovoltaic solar cells, calculate the amount of power that can be generated, calculate the amount of GHG emission reduction from photovoltaic solar cells and the costs required for installation at Al-Jihad Islamic Boarding School. The planning results were analyzed by adjusting the selection of a 12 KVA inverter, 44 polycrystalline photovoltaic solar cells, and other complementary materials such as cables, MCBs and supports. The amount of power generated from photovoltaic solar cells at the Al-Jihad Islamic Boarding School in Surabaya is 12 kWh. Climate change mitigation efforts by reducing GHG emissions through solar cell photovoltaic planning at the Al-Jihad Islamic Boarding School in Surabaya can reduce CO2 greenhouse gases by 1,200.5 kg, NH4 30.013 kg, and N2O 0.019 kg. The cost required for the installation of photovoltaic solar cells is Rp. 209,850,400.
LENGTH-WEIGHT RELATIONSHIP AND CONDITION FACTOR OF FOURFINGER THREADFIN (Eleutheronema tetradactylum Shaw, 1804) IN SEDATI, SIDOARJO Rahman, Muhammad Arif; Wiadnya, Dewa Gede Raka; Harlyan, Ledhyane Ika; Setyohadi, Daduk; Mahsuna, Inna Rohmatul
Journal of Environmental Engineering and Sustainable Technology Vol 11, No 02 (2024)
Publisher : Directorate of Research and Community Service (DRPM)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jeest.2024.011.02.7

Abstract

The fourfinger threadfin, Eleutheronema tetradactylum is one of economic demersal species in Indonesia. Information of its biology was needed to ensure the sustainable fisheries management of this species. This study aimsto estimate the lengthweight relationship and condition factor of E. tetradactylum landed in Sedati, Sidoarjo, East Java. In total, 649 samples were randomly collected from Sedati Fishing Base during the study. The results indicated that E. tetradactylum has negative allometric growth pattern (b = 2.8, p<0.05), means the growth of length was faster than weight. In addition, the average value of relative weight condition factor (kn) was 1.01, which is greater than or equal to 1, means E. tetradactylum live in good growth conditions. This finding contributes to managing E. tetradactylum fishery in the north Java waters, especially in East Java. As this study was conducted from unsexed samples, future research with focuse on sexed samples is suggested to give more comprehensive result.
STATE OF THE RURAL COMMUNITY ON THE LADDER OF PUBLIC PARTICIPATION: CASE STUDY WASTE MANAGEMENT PROGRAM IN MOJOSARI VILLAGE, BOJONEGORO REGENCY Hidayah, Nurul; Meidiana, Christia; Firdausiyah, Nailah; Ghosh, Ratan Kumar; Amalia, Rizky
Journal of Environmental Engineering and Sustainable Technology Vol 11, No 02 (2024)
Publisher : Directorate of Research and Community Service (DRPM)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jeest.2024.011.02.3

Abstract

The success of waste management must be connected to the community's participation. The community's involvement in waste management still needs to be significantly apparent. Community participation in rural waste management programs was investigated in this study since the waste reduction activities still involve open burning and burying of waste in the yard, which is harmful to the environment. A research model was designed, and a questionnaire was distributed among 112 households (HHs) to analyze their participation in rural waste management programs. A semi-structured questionnaire survey, focus group discussions, and key informant interviews were adopted to acquire qualitative information. The analytical framework includes mass balance analysis (MBA) and Arnstein's participation (APL) ladder. MBA was applied to measure each HH's current waste reduction rate, while (APL) was used to evaluate the community participation level in this program. The findings revealed that the average waste reduction is 0,48 kg/HH/day, contributing to a total waste reduction of 17.94 kg/day in the village (24.39% of total waste generation). Measurement using APL unfolds that the extant community participation in Mojosari Village, Bojonegoro Regency, corresponds to a non-participation continuum where villagers are simply misled by pseudo and tokenistic participation, leading to unequal benefit-sharing. Based on these findings, the researchers challenge that communities' engagement in rural waste management mainly relies on community cadres concerning environmental subjects as well as communities' economic backgrounds. It is concluded that where economically weak communities and manipulative figures exist, ensuring a higher community participation level is more challenging.
WATER QUALITY STATUS IN TANJUNG BUTON PORT AREA BASED ON SEA WATER QUALITY INDEX (IKAL) Lestari, Tri Ayu; Adriman, Adriman; Fauzi, Muhammad
Journal of Environmental Engineering and Sustainable Technology Vol 11, No 02 (2024)
Publisher : Directorate of Research and Community Service (DRPM)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jeest.2024.011.02.4

Abstract

Tanjung Buton Port is one of the ports with considerable potential to support national development. The water quality status in the Tanjung Buton Port area is suspected to be declining, water quality due to activities in the port area. So, this study aims to determine the status of water quality in the Tanjung Buton Port area based on the Sea Water Quality Index. The research was conducted in October - November 2023 in the Tanjung Buton Port Area in Sungai Apit Regency, Riau Province. Determination of water quality status uses the Marine Water Quality Index (WQI) method. This research will be conducted at three measurement and sampling stations, where one sampling will be done at each station. Measurements and sampling are carried out at low tide. Parameters observed include temperature, pH, DO, salinity, TSS, total ammonia, oil and grease, and ortho-phosphate.  The condition of Tanjung Buton Harbor water quality status in this study based on the Marine Water Quality Index (WQI) is included in the "moderately polluted" category with WQI ranging from 50.01-55.38. Based on the research results, it is recommended that the government and the management of Tanjung Buton Port pay attention to the management of pollutant sources around Tanjung Buton Port.
THE CHARACTERISTICS OF SHRIMP FISHERIES IN KOTABARU, SOUTH KALIMANTAN, INDONESIA Harlyan, Ledhyane Ika; Setyohadi, Daduk; Tumulyadi, Agus; Sukandar, Sukandar; Maulana, Almaas Zain; Lathif, Adib Hisyam; Fanani, Zainal
Journal of Environmental Engineering and Sustainable Technology Vol 11, No 02 (2024)
Publisher : Directorate of Research and Community Service (DRPM)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jeest.2024.011.02.5

Abstract

The shrimp fishery in Kotabaru, South Kalimantan, is a small-scale fishery that supplies raw materials to PT. Sekar Laut, Tbk, a company specializing in shrimp cracker production for the global market. Despite its significance, limited research has been conducted on the sustainability of this fishery. This study aims to analyze the key characteristics of the shrimp fishery in Kotabaru waters. Data were collected from January to August 2024 in Kotabaru, South Kalimantan, and subjected to various analyses, including species composition, length-weight relationships for several shrimp species, and identification of shrimp fishing grounds. The results reveal that banana shrimp and yellow shrimp are the predominant species within the catch, both exhibiting negative allometric growth patterns. The fishery’s most productive fishing location is identified in Pantai Village, highlighting this area as a potential focus for sustainable management initiatives. These findings underscore the need for ongoing monitoring and targeted management practices to promote the long-term sustainability of the shrimp fishery in Kotabaru.
ANALYSIS OF EFFECTIVENESS OF STATIONARY LIFT NET AND FLOATING LIFT NET OPERATION IN PROBOLINGGO WATERS Rihmi, Mihrobi Khalwatu; Isdianto, Andik; Wardhani, Mentari Puspa
Journal of Environmental Engineering and Sustainable Technology Vol 11, No 02 (2024)
Publisher : Directorate of Research and Community Service (DRPM)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jeest.2024.011.02.1

Abstract

Lift net is a fishing tool that belongs to the lifting net group. In terms of construction, there are two types of lift net, namely: stationary lift net and floating lift net. Stationary lift net are a type of static fishing gear. The advantage of this fishing gear is that it gives fishermen certainty about the fishing location. However, if fishermen are not wise in exploiting fish, the catch will decrease, the reason is that stationary lift net will rely heavily on the stock/abundance of local fish in these waters. This is different from floating lift net which are able to change positions. The method is to pull the lift net with the help of the boat. Usually fishermen will move the position of any lift net when the catch is low or the weather is bad. Thus, research was carried out regarding the effectiveness and efficiency of the operation of the lift net by conducting experimental fishing in Probolinggo waters. The results of the independent t test show a significance value of 0.152, which means there is no difference in catches between the stationary lift net and the floating lift net.
MAPPING OF NDVI INDEX BASED MANGROVE AREA AND DENSITY CHECTARENGES USING LANDSAT 8 SATELLITES IMAGES IN NORTHERN COASTAL AREA OF EAST JAVA PROVINCE, INDONESIA Zakiyah, Umi; Gayatri, Alifia; Maharani, Patricia Dita; Mulyanto, Mulyanto; Arfiati, Diana; Loka, Widi Ayom
Journal of Environmental Engineering and Sustainable Technology Vol 11, No 02 (2024)
Publisher : Directorate of Research and Community Service (DRPM)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jeest.2024.011.02.6

Abstract

Mangrove ecosystems are important for maintaining ecological balance in coastal areas. To monitor changes in mangrove area and density, remote sensing technology with Landsat 8 and NDVI Index was used. The research focuses on the North Coast of East Java, from 2019-2024, on the coast of Surabaya, Sidoarjo, Pasuruan, Probolinggo, and Situbondo. The purpose of this study is to analyze changes in mangrove area and density. The survey method was conducted with Landsat 8 images and in situ data in 2024. There are 5 observation station points with the determination of station points using purposive sampling technique. Accuracy test using RMSE. The area of mangroves on the coast of Surabaya, Sidoarjo and Pasuruan from 2019 to 2024 ranged from 1611.88 ha-2270.41 ha. The highest cover area was in 2024 and the lowest in 2019. Mangroves with sparse NDVI category ranged from 46640.61 ha-53284.95 ha. Moderate NDVI ranged from 4313.25 ha-6984.72 ha and dense NDVI ranged from 493.29 ha-4711.5 ha. The area of mangroves on the coast of Probolinggo and Situbondo increased from 2019-2024, which amounted to 1487.05 ha-1885.79 ha. Mangroves with sparse NDVI category have an area between 51367.12 ha-54852.64 ha. Moderate NDVI ranged from 5564.87 ha-54852.64 ha and high NDVI ranged from 668.18 ha-1585.52 ha. The results show that there are changes in the area and density of mangroves on the north coast of East Java every year. These changes need to be monitored annually to address the decline in mangrove area and density quickly and appropriately.
ESTIMATION OF BIOLOGICAL PARAMETERS OF SQUID (LOLIGO SPP) CAUGHT IN THE WATERS OF TUBAN REGENCY Setyohadi, Daduk; Kartikasari, Wahida; Setyanto, Arief; Wiadnya, Dewa Gede Raka; Harlyan, Ledhyane Eka; Sunardi, Sunardi; Nabilla, Azma Salma
Journal of Environmental Engineering and Sustainable Technology Vol 11, No 02 (2024)
Publisher : Directorate of Research and Community Service (DRPM)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jeest.2024.011.02.8

Abstract

Squid (Loligo spp.) belongs to the Cephalopoda group (squid, cuttlefish, octopus) and is one of the primary export commodities in the fisheries sector. National squid production increased by 5.5%, from 193,583.82 tons in 2020 to 204,156.28 tons in 2021. However, the potential sustainable catch in the Java Sea (WPPNRI 712, including the Madura Strait) has experienced an average annual decline of 1.9% from 2017 to 2022, dropping to 66,608 tons in 2022. This study aims to identify the species composition of squid, analyze length-weight relationships, and determine the mantle length at first gonad maturity (Lm). Data were obtained from fixed lift-net catches and analyzed in the Fisheries Exploitation Laboratory of Universitas Brawijaya. The results identified two main species: Photololigo duvaucelli (Indian squid) and Sepioteuthis lessoniana (bigfin reef squid). The composition of squid catches was 1.29% in purse seine operations and 2.91% in payang (seine net) operations. The length-weight relationship of both species exhibited a negative allometric growth pattern, where length growth outpaces weight gain. The sex ratio between males and females was balanced for both species. The mantle length at first gonad maturity (Lm) was greater than the mantle length at first capture (Lc), indicating that the catch was dominated by immature squid. These findings highlight the need for minimum catch size regulations to ensure the sustainability of squid resources in the Tuban waters.

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