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Jurnal Teknologi Lingkungan
Published by BRIN Publishing
ISSN : 1411318X     EISSN : 25486101     DOI : https://doi.org/10.55981/jtl
Core Subject : Science, Agriculture, Social, Engineering,
Agriculture, Biological Sciences & Forestry Chemical Engineering, Chemistry & Bioengineering Earth & Planetary Sciences Engineering Environmental Science
Jurnal Teknologi Lingkungan (JTL) is a journal aims to be a peer-reviewed platform and an authoritative source of information. JTL is published twice annually and provide scientific publication for researchers, engineers, practitioners, academicians, and observers in the field related to science and environmental technology. We publish original research papers and case studies focused on environmental sciences, environmental technology as well as other related topics to environment including sanitation, environmental biology, waste water treatment, solid waste treatment, environmental design and management, environmental impact assessment, environmental pollution control and environmental conservation. Jurnal Teknologi Lingkungan (JTL) adalah jurnal yang bertujuan untuk menjadi platform peer-review dan sumber informasi yang otoritatif. JTL diterbitkan dua kali setahun dan menyediakan publikasi ilmiah bagi para peneliti, insinyur, praktisi, akademisi, dan pemerhati di bidang yang berkaitan dengan ilmu pengetahuan dan teknologi lingkungan. Kami menerbitkan makalah penelitian asli dan studi kasus yang berfokus pada ilmu lingkungan, teknologi lingkungan serta topik terkait lainnya yang berhubungan dengan lingkungan termasuk sanitasi, biologi lingkungan, pengolahan air limbah, pengolahan limbah padat, desain dan manajemen lingkungan, analisis mengenai dampak lingkungan, pengendalian pencemaran lingkungan dan konservasi lingkungan.
Arjuna Subject : Ilmu Lingkungan (semua ketegori) - Teknik Lingkungan
Articles 166 Documents
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Kajian Tekno-Ekonomi Penerapan Insinerator Waste-to-Energy di Indonesia (Kasus pada Kota “X") Manis Yuliani; Geby Otivriyanti; Naufal Riadhi Yusuf; Ayudia Mutiara Fani; Wahyu Purwanta
Jurnal Teknologi Lingkungan Vol. 23 No. 2 (2022)
Publisher : BRIN Publishing (Penerbit BRIN)

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Abstract

In order to realize net zero emissions in waste sector, the government encourages the application of Waste-to-Energy (WtE) thermal process technology in 12 cities in Indonesia. There are many obstacles and challenges in implementing WtE as an alternative for waste management, starting from changes in consistency of regulations, environmental issues as well as technical and economic feasibility. Therefore, this study aims to examine the Techno-Economics of WtE Incinerator Implementation in Indonesia by taking the case in City "X" as an illustration for stakeholders in making decisions. The methods used include the desk study, direct observation, and interviews. In this study, City "X" becomes a model for the implementation of WtE with a waste processing capacity of 1,500 tpd which is a typical waste generation in big cities in Indonesia. City set a target to reduce 80–90% of waste volume. After technology selection stage, the MGI was selected as the main WtE unit. The plant is designed with a capacity of 1,500 tons/day of waste with a calorific value of 6,276 kJ/kg, 26% plant efficiency, 8,000 hours/year operation so that it will produce 28.33 MW of electricity or energy equivalent to 226,633 MWh/year. This electrical power will be used for internal purposes by 15% so that the total net electricity for the PLN grid is 24.08 MW. This WtE has a capital expenditure (Capex) of 2.2 billion IDR/ton/day and operational expenditure (Opex) 167 million IDR /year/ton per day with an estimated construction in 2025. The electricity price obtained from this capacity is 1,819 IDR/kWh. Based on the estimated value of the cost of capital, the selling price of electricity and the assumption that the loan will be returned for 10 years with interest rate of 6%, the WtE project gets a tipping fee of 642,779 IDR/ton of waste.
Penggunaan Biofilter untuk Menghilangkan Bau pada Sludge Industri Es Krim Abdul Aziz Setiawan; Sri Sugiarti; Hanies Ambarsari
Jurnal Teknologi Lingkungan Vol. 23 No. 2 (2022)
Publisher : BRIN Publishing (Penerbit BRIN)

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Abstract

The growing number of industries in Indonesia causes industrial waste to increase. Substances with upleasant smell from industrial waste can pollute the environment. Currently, not many people process and utilize industrial waste in the form of sludge left over from the WWTP process. The biofilter method will be very effective in handling air pollution because it has several advantages, among them are an easy and simple process, low investment and operational costs, and a relatively long operational time. The study began with the manufacture of incubation equipment and biofilter columns, testing the feasibility of the biofilter and incubation column, selecting fillers based on the results of a literature review, sampling fillers, preparing fillers, preparing samples of ice cream waste sludge from the ice cream industry in the Jababeka area, followed by analysis proximate sludge, analysis of ammonia gas in sludge with various variations of sludge weight and time, biofiltration process using coconut shell charcoal in order to obtain optimal variations in coconut shell charcoal size, then biofiltration using coconut shell charcoal briquettes with added zeolite content variations to determine the most effective filler material to remove odors. The results show that coconut shell charcoal with a particle size of 100 mesh is the most optimal biofilter filler for removing ammonia gas with an efficiency of 75% compared to a particle size of 20 mesh and 60 mesh which has an ammonia gas removal efficiency of 64% and 68%. Biofilter IV has the highest efficiency in removing ammonia gas, which is 90%.
Penyisihan Nitrogen dengan Proses Anammox Menggunakan Lumpur Muara Penjalinan Kota Padang sebagai Inokulum Faldi Lulrahman; Shinta Silvia; Zulkarnaini Zulkarnaini
Jurnal Teknologi Lingkungan Vol. 23 No. 2 (2022)
Publisher : BRIN Publishing (Penerbit BRIN)

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Abstract

The purpose of this study was to analyze nitrogen removal by anaerobic ammonium oxidation (anammox) process using sludge from Muara Penjalinan Padang as an inoculum in a filter bioreactor (FtBR). The configuration of FtBR consisted of a housing filter with an effective volume of 1,500 mL and a string wound filter cartridge of 0.5 µm as a carrier for the growth of anammox bacteria. The artificial wastewater was made using seawater containing ammonium and nitrite with a concentration of 70 mg-N/L, which was delivered to the reactor continuously with a hydraulic retention time (HRT) of 24 hours. Influent and effluent samples were collected once-twice a week to analyze the concentration of ammonium, nitrite, and nitrate, based on Nessler, spectrophotometry, and UV screening methods. Process anammox takes place in FtBR based on the average ratio of ?NO2--N/?NH4+-N and ?NO3--N / ?NH4+-N of 0.986 dan 0.239. The nitrogen removal performance was calculated based on the ammonium conversion efficiency (ACE), nitrogen removal efficiency (NRE), nitrogen loading rate (NLR), and nitrogen removal rate (NRR). After operating the reactor for 143 days, the nitrogen removal of ACE, NRE, and NRR were 20.268%, 16. 872%, and 0.026 kg-N/m3·d at NLR 0.1804 kg-N/m3·d.
Tanggung Jawab Sosial, Ekonomi, dan Lingkungan PT Indocement Tunggal Prakarsa Tbk (PT ITP) melalui Program Reduce, Reuse, Recycle, dan Recovery Kantong Semen Erna Lestianingrum; PT Indocement Tunggal Prakarsa Tbk Unit Palimanan; Teguh Ariyanto
Jurnal Teknologi Lingkungan Vol. 23 No. 2 (2022)
Publisher : BRIN Publishing (Penerbit BRIN)

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Abstract

PT Indocement Tunggal Prakarsa Tbk (PT ITP) Unit Palimanan has performed efforts to reduce, reuse, recycle, and recovery (4R) of cement bags as an attempt to utilize resources in efficient manners. In this study, the 4R program was evaluated to gain information on the impacts of the program in social, economic and environmental benefit as a part of corporate responsibility to the community and the environment. The study was conducted by analyzing data of cement bags and other non-hazardous wastes from 2016–2020, both generated and utilized in the 4R program. The evaluation results show that the reduction program of replacing 3-ply cement bags with 2-ply cement bags is dominantly able to reduce the tonnage of cement bag waste (up to 3,000 tons/year). The reuse, recycle, and recovery programs for cement bags to produce handicrafts and Refuse-Derived Fuel (RDF) was able to contribute up to 20% of the total tonnage of the 4R program. The cement bag reduction program (replacement of 3-ply paper with 2-ply) has environmental and economic benefits for the company. Reuse, recycle, and recovery programs for cement bags are able to provide wider benefits not only for the company and the environment but also for the community. The 4R program reduced emissions to an average of 1,404 tons of CO2/year, where the dominant contribution came from the reduction effort of replacing 3-ply paper with 2-ply.
Modifikasi Pupuk Urea Pelepasan Terkendali dan Pengaruhnya terhadap Lingkungan Jayanudin Jayanudin; Retno S.D. Lestari; Muhammad Luthfi; Maulana Suyuti
Jurnal Teknologi Lingkungan Vol. 23 No. 2 (2022)
Publisher : BRIN Publishing (Penerbit BRIN)

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Abstract

Controlled release urea fertilizer is one solution to increase the efficiency of nutrient absorption by plants and is more environmentally friendly. The aims of this study was to determine the yield and water absorption of controlled release urea fertilizer and analyze the content of nitrate, nitrite, and ammonia as environmental pollution parameters. Controlled release urea fertilizer was prepared using the emulsion crosslinking method with chitosan as the matrix. Urea was dissolved in chitosan then added in oil and stirred to form an emulsion. Next, glutaraldehyde saturated toluene (GST) as a crosslinker was dripped slowly and then continuously stirred for 2 hours. Urea loaded-chitosan microspheres (controlled release urea fertilizer) were dried and analyzed. Furthermore, the yield, water absorption, and analysis of nitrate, nitrite, and ammonia from the released urea was determined. Controlled release urea fertilizer obtained yield was 91.3–97.28%, water absorption of 78.87–91.61%. Analysis of nitrate, nitrite, and ammonia from the study concluded that urea fertilizer contained in chitosan microspheres is more environmentally friendly.
Prediksi Konsentrasi Klorofil-a Menggunakan Data Citra Satelit Sentinel-2A di Waduk Jatiluhur Kabupaten Purwakarta Arip Rahman; Lismining Pujiyani Astuti; Andri Warsa; Agus Arifin Sentosa
Jurnal Teknologi Lingkungan Vol. 23 No. 2 (2022)
Publisher : BRIN Publishing (Penerbit BRIN)

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Abstract

Lakes, reservoirs, and rivers are among the most changing ecosystems on the earth’s surface. Chlorophyll-a as the main pigment in phytoplankton is often used to describe the water quality of lake and reservoirs and as an important element that indicates the tropical status of a waters. Spatial and temporal changes in algae blooms in a lake make it difficult to use in situ monitoring. The aim of the study is to predict the concentration of chlorophyll-a in Jatiluhur Reservoirs. The data used in this study were chlorophyll-a data from in situ measurements and satellite data Sentinel-2A. The method to obtain the value of the concentration of chlorophyll-a are an empirical and semi-analytical method. The empirical method is carried out by correlating in situ data with ratio of band 5 (red edge) and band 4 (red) (B5/B4). While the semi-analytical method is carried out by analyzing the Case 2 Regional Coast Colour (C2RCC) algorithm that integration in Sentinel Application Platform (SNAP) software. Correlation between in situ data and prediction of chlorophyll-a data has a strong relationship with the coefficient of determination R2=0.67 (in situ data with ratio prediction data) and R2=0.56 (in situ data with C2RCC prediction data). Based on this, remote sensing data on Sentinel-2A imagery with the application of several algorithms, can be used to support water quality monitoring activities in lakes and reservoirs, especially chlorophyll-a.
Evaluasi Kinerja Instalasi Pengolahan Air Limbah (IPAL) PT. Wahana Kreasi Hasil Kencana (WKHK) Tangerang Yoga Bangun Nugroho; Anie Yulistyorini; Mujiyono Mujiyono
Jurnal Teknologi Lingkungan Vol. 23 No. 2 (2022)
Publisher : BRIN Publishing (Penerbit BRIN)

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Industry in Indonesia is currently increasing both in terms of technology and diversity. However, industries ocated near the rivers tends to dispose of their wastewater into the river bodies which causes water pollution. PT. Wahana Kreasi Hasil Kencana (PT KHK) Tangerang is a metal coating industry that produces heavy metal wastewater. The wastewater has been processed in the wastewater treatment plant (WWTP) but has not met the discharge standard yet. The study aims to examine the process performance of wastewater treatment in an existing condition and in the addition of a biochemical oxidation process. The results showed that the existing a lower concentrations of Pb, TSS, Ni, Zn, Cu, BOD, and COD. While the addition of biochemical oxidation process by adding microorganisms (Microplus) revealed high effectivity in decreasing the concentration of the wastewater. The addition of microorganisms into WWTP proved that heavy metal concentration in the effluent was removed. The efficiency of the removal was 78%, 63%, 80%, 61%, 78%, 62% and for Ni, Zn, CN, Cu, Pb, and BOD respectively, but the COD removal was approximately COD 53%. Furthermore, statistical analysis showed that pH has also influenced the removal of BOD and TSS up to 95.3% and 75.6% respectively, while Ni, Zn, Cu, and Pb concentration was not affected by pH.
Kesuburan Perairan dan Komunitas Fitoplankton Danau Toba di Wilayah Kecamatan Ajibata Kabupaten Toba Samosir Yudhi Soetrisno Garno
Jurnal Teknologi Lingkungan Vol. 23 No. 2 (2022)
Publisher : BRIN Publishing (Penerbit BRIN)

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In order to determine the waters fertility and Phytoplankton abundance of Lake Toba in the Ajibata District, and to compare them with other sub-districts in Lake Toba, this study was conducted. The research was conducted by in-situ observation and sampling for laboratory analysis according to ISO 5667-6:2014 and ISO 5667-3:2012 procedures. This study revealed that the waters of Lake Toba in the District of Ajibata contain total dissolved inorganic nitrogen (nitrite-N, nitrate-N and NH4-N) dissolved 0.158–0.290 mg/l; and total phosphate 0.040–0.060 mg/l. This indicates that the waters are already included in fertile waters. These waters are inhabited by at least 24 types of phytoplankton which are included in 4 classes, namely Bacillariophyceae (11 sp.), Chlorophyceae (8 sp.), Cyanophyceae (3 sp.) and Dinophyceae (2 sp.). Even though they are fertile waters, when compared to the waters of Lake Toba in other sub-districts, the concentration of inorganic nitrogen and total phosphate is still much lower. This study also revealed that the presence of floating net cage (KJA) greatly affected the concentration of dissolved nitrogen and phosphate as well as the abundance of phytoplankton in the vicinity. This study did not show a positive correlation between nutrient concentration and abundance of phytoplankton where waters with higher nutrient concentrations did not always have a higher abundance of phytoplankton.
Potential Utilization of PT Vale Indonesia Tbk Slag as An Alternative Energy Source Irwan Ridwan Rahim; Evi Aprianti; Faizal Arya Samman; Sutami Suparmin
Jurnal Teknologi Lingkungan Vol. 23 No. 2 (2022)
Publisher : BRIN Publishing (Penerbit BRIN)

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Potensi pertambangan nikel di Indonesia tersebar dari Pulau Sulawesi, Maluku, dan Papua dengan sumber daya dan cadangan biji nikel laterit sebesar 4,2 milyar ton. Dampak negatifnya adalah dihasilkan limbah dari pengolahan bijih nikel yaitu terak (slag) dalam jumlah besar dan jika tidak dilakukan pengelolaan dengan baik, maka akan mengancam lingkungan sekitar pertambangan. Penelitian ini bertujuan untuk melakukan analisis SWOT kelayakan terak nikel yang dihasilkan oleh PT. Vale Indonesia Tbk menjadi sebuah produk energi alternatif dalam bentuk baterai dengan metode mengambil sampel terak dari ke-5 lokasi pada Tempat Penyimpanan Sementara (TPS) Delaney, PT Vale Indonesia Tbk. Selanjutnya, sampel terak dihaluskan sampai mencapai ukuran 100 mesh dan diberikan empat perlakuan elektrolit yaitu kering, air distilasi, hidrogen klorida (HCl), dan natrium hidroksida (NaOH). Setiap sampel terak yang telah diberikan perlakuan selanjutnya dimasukkan ke dalam wadah (sel) dengan ukuran 10x10x2 sentimeter kemudian memasukkan plat elektroda tembaga (Cu) dan seng (Zn) pada sisi sel yang berlawanan. Eksperimen terhadap 20 sel baterai menghasilkan data tegangan rata-rata tertinggi sebesar 1,28 Volt dengan arus rata-rata tertinggi sebesar 57,34 miliAmpere. Perlakuan yang paling efektif adalah dengan penambahan natrium hidroksida (NaOH) ke dalam baterai terak. Unsur yang berpengaruh dalam menghasilkan tegangan dan arus tertinggi adalah besi (Fe) dan senyawa oksida sulfat (SOx). Sel baterai terbukti dapat menyimpan energi listrik sebesar 0,1–24 kali arus dan tegangan awal melalui proses pengecasan sehingga disimpulkan bahwa baterai terak dapat dimanfaatkan sebagai sumber energi alternatif untuk alat elektronik berdaya rendah.
Pengaruh Penggunaan Teknologi Ulir Filter dan Geoisolator pada Produksi Garam Rakyat di Kabupaten Indramayu Mutiara Salsabiela; Joko Prayitno
Jurnal Teknologi Lingkungan Vol. 23 No. 2 (2022)
Publisher : BRIN Publishing (Penerbit BRIN)

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The choice of technology in the production of salt is one of the key factors to obtain higher productivity. Salt farmers in Indramayu Regency have been utilizing a combination of filtration thread technology (TUF) and Geoisolator to increase the quantity and quality of their salt production. The aim of this study was to ascertain the impact of TUF and Geoisolator utilization compared to the traditional method on salt production in Indramayu in 2015 using descriptive analysis. The result of this study shows that TUF and Geoisolator technology produces salt which met the national standard (in accordance with SNI; free from impurities and heavy metal contaminants), and higher productivity than traditional technology. The productivity of TUF and Geoisolator was ± 140 tons/ha, while that of the traditional was ± 92.23 tons/ha, or an increase of 151.8%. The selling price of salt per unit of weight increased with better salt quality. The salt price of TUF and Geoisolator was in the range of 450,000–650,000 IDR / ton (Grade I), while the traditional was in the range of 130,000–450,000 IDR / ton (Grade II). Although the investment cost of the TUF and Geoisolator was 82.2% larger than the traditional, and the operating cost also increased by 42%, the revenue from salt sales increased up to 104.7%. Thus, with higher productivity and quality, total income of salt farmers per unit of area was also higher. With higher investment cost, BEP of the TUF and Geoisolator was longer than the traditional (27 and 21 months, respectively). This result indicates that TUF and Geoisolator technology is a good alternative for improving the economy and welfare of salt farmers.

Page 16 of 17 | Total Record : 166

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