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All Journal Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan Jurnal Reka Lingkungan Journal of Engineering and Technological Sciences Jurnal Serambi Engineering Jurnal Rekayasa Hijau Serambi Engineering

Eka Wardhani

Institut Teknologi Nasional Bandung

Author-ID : 1736280

Agriculture, Biological Sciences & Forestry Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Earth & Planetary Sciences Energy Engineering Environmental Science Industrial & Manufacturing Engineering

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Depth Profiles of Dissolved Oxygen (DO) and Hydrogen Sulfide (H2S) Concentration in a Tropical Freshwater Reservoir Eka Wardhani; Zulfah Ananda Sugiarti
Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan Vol 19, No 2 (2022): July 2022
Publisher : Universitas Diponegoro

This study aims to determine the profile of dissolved oxygen and H2S based on depth in the Jatiluhur Reservoir related to fish culture in floating net cages. The scope of this research is focused on the location of floating net cage cultivation. Dissolved oxygen distribution is classified as a positive heterograde type where dissolved oxygen levels higher in the metalimnion layer due to the photosynthesis process that occurs effectively by aquatic plants and phytoplankton. Jatiluhur Reservoir shows signs of organic pollution, with BOD5 and COD levels exceeding the quality standard. This organic substance comes from the waste of floating net cages. BOD5 and COD values that exceed the quality standard result in increased oxygen consumption during the decomposition process; therefore, a hypoxic layer occurs. This occurrence can cause water conditions to become anoxic, producing H2S gas. The H2S value in the Jatiluhur Reservoir was observed to exceed 0.002 mg/L and showed an increase in the metalimnion layer.

Analisis Sistem Pengelolaan Limbah B3 Di Industri Tekstil Kabupaten Bandung Eka Wardhani; Dea Salsabila
Rekayasa Hijau : Jurnal Teknologi Ramah Lingkungan Vol 5, No 1 (2021)
Publisher : Institut Teknologi Nasional, Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26760/jrh.v5i1.15-26

ABSTRAKPenelitian ini bertujuan untuk mengetahui pengelolaan LB3 yang telah dilakukan di indsutri tekstil. Metode penelitian menggunakan metode perbandingan antara kondisi di lapangan dengan peraturan yang berlaku. Berdasarkan hasil evaluasi mengenai pengelolaan LB3 yang dilakukan oleh PT X dapat disimpulkan beberapa hal yaitu sumber LB3 berasal dari proses produksi, lumpur IPAL, boiler, labolatorium, pemeliharaan mesin, dan klinik. Jenis LB3 yang dihasilkan berasal dari sumber spesifik umum yaitu lumpur IPAL dan limbah medis, sumber spesifik khusus yaitu hanya fly ash dan sumber tidak spesifik yang meliputi lampu TL, drum bekas LB3, oli bekas dan reagen. Karakteristik LB3 terdiri dari beracun, mudah menyala, korosif dan infeksius. PT X telah melakukan pengelolaan LB3 yang meliputi aspek pengemasan dan pewadahan, pengumpulan, penyimpanan, pengangkutan dokumen pengelolaan LB3, dan pelabelan LB3. Untuk kegiatan pengangkutan PT X bekerja sama dengan pihak ketiga diantaranya adalah PT Hijau Lestari, PT PPLI, PT Khalda, dan WGI. Berdasarkan hasil analisis pengelolaan LB3 di perusahaan ini termasuk kategori baik. Upaya pengelolaan LB3 yang harus ditingkatkan yaitu pada proses pelekatan simbol dan label, pengemasan, dan penyimpanan LB3.Kata Kunci: Kabupaten Bandung, Industri Tekstil, Limbah B3,ABSTRACTThis study aims to determine the management of LB3 that has been carried out in the textile industry. The research method uses a comparison between conditions in the field and applicable regulations Based on the evaluation results on the management of hazardous materials carried out by PT X, it can be concluded several things, namely the source of hazardous materials originating from the production process, sludge from the wastewater treatment plant, boilers, laboratory, engine maintenance, and clinics. The types of hazardous materials produced come from general specific sources such are sludge from the wastewater treatment plant and medical waste, specific sources which are fly ash and non-specific sources which include lamps, drums used in hazardous materials, used oil and reagents. The characteristics of hazardous materials consist of toxic, flammable, corrosive, and infectious. PT X has managed the management of hazardous materials which includes aspects of packaging, storage, collection, storage, transportation of documents on the management of hazardous materials, and labeling of hazardous materials. For transportation activities, PT X cooperates with third parties including PT Hijau Lestari, PT PPLI, PT Khalda, and WGI. Based on the analysis the achievement of the management of dangerous substances in this company including the good category. Efforts to manage toxic and hazardous materials must be improved in the process of sticking symbols and labels, packaging, and storing toxic and hazardous materials.Keywords: Bandung Regency, Testile iIndustry, hazardous waste materials

Pengelolaan LB3 di Perusahaan Listrik Negara PUSHARLIS UP2 WIII Bandung Eka Wardhani; Muhammad Viqi Rafianto
Rekayasa Hijau : Jurnal Teknologi Ramah Lingkungan Vol 5, No 3 (2021)
Publisher : Institut Teknologi Nasional, Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26760/jrh.v5i3.267-280

ABSTRAKPUSHARLIS UP2 WIII merupakan workshop yang bergerak dalam bidang desain, reverse engineering peralatan ketenagalistirkan, manufaktur dan perbaikan peralatan ketenagalistrikan. Proses yang terjadi di workshop ini menghasilkan LB3. Maksud penelitian ini adalah mengetahui seberapa besar tingkat kepatuhan pengelolaan LB3 di PUSHARLIS UP2 WIII Bandung terhadap aturan yang berlaku. Berdasarkan identifikasi dihasilkan tujuh jenis LB3 yaitu Coolant bekas (A345-1), sludge logam Fe dan Al (A345-2), sarung tangan dan kain majun, terkontaminasi (B110D), limbah terkontaminasi B3 (A108d), limbah elekronik (lampu TL, PCB, karet kawat) (B107d), oli bekas (B105d), Toner (B353-1), dan kemasan bekas B3 (cat, solvent, dan freon) (B104d). Pengelolaan LB3 telah dilakukan dengan baik mulai dari pengemasan, penyimpanan di TPS, pelabelan, dan pengangkutan ke pihak ketiga berizin. Hal yang harus ditingkatkan yaitu melengkapi fasilitas tanggap darurat di TPS LB3 antara lain dengan fasilitas pertolongan pertama pembersih mata dan alarm sebagai peringatan dini potensi kebakaran. Bangunan TPS LB3 perlu adanya simbol LB3 yang dilekati pada bagian dinding bangunan TPS LB3 sesuai dengan karakteristik dominan yang sebelumnya telah ditentukan.Kata Kunci: Pengelolaan, PUSHARLIS UP2 WIII, Limbah beracun dan berbahaya. ABSTRACTPUSHARLIS UP2 WIII is engaged in the design, reverse engineering of power equipment, manufacturing, and repair of electrical equipment. The process that occurs in this workshop produces toxic and hazardous waste (THW). The purpose of this research is to find out the level of compliance of the THW management at PUSHARLIS UP2 WIII Bandung to the applicable regulations. Based on the identification, seven types of THW were produced, namely used coolant (A345-1), Fe and Al metal sludge (A345-2), cotton cloth gloves, contaminated (B110D), waste, contaminated with THW (A108d), electronic waste (lamps, PCB, wire rubber) (B107d), used oil (B105d), Toner (B353-1), and used THW packaging (paint, solvent, and freon) (B104d). THW has been well managed, starting from packaging, storage at THW temporary storage, labeling, and transportation to licensed third parties. Things that must be improved are completing emergency response facilities at a temporary storage area THW with eyewash as the first-aid facility for eye cleaning contaminated with LB3 and an alarm as an early warning of the potential fire. The TPS THW building needs a THW symbol attached to the wall of the temporary storage area THW building based on the predetermined dominant characteristics.Key word: management, PUSHARLIS UP2 WIII, toxic and hazardous waste

Analisis Profil Konsentrasi Pb di Air Waduk Saguling Ade Arinda; Eka Wardhani
Rekayasa Hijau : Jurnal Teknologi Ramah Lingkungan Vol 2, No 3 (2018)
Publisher : Institut Teknologi Nasional, Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26760/jrh.v2i3.2509

ABSTRAKAir Waduk Saguling saat ini menunjukkan penurunan, baik secara kualitas maupun kuantitas akibat aktivitas manusia yang menghasilkan limbah rumah tangga, industri, pertanian, peternakan, perikanan dan pertambangan. Salah satu pencemar di Waduk Saguling adalah logam berat. Penelitian ini bertujuan menganalisis konsentrasi Pb di perairan Waduk Saguling pada musim yang berbeda. Penelitian ini menggunakan data sekunder yang diperoleh dari PT Indonesia Power tahun 2008-2017. Data berasal dari tiga kedalaman yaitu kedalaman permukaan, tengah, dan dekat dasar perairan. Berdasarkan hasil penelitian menunjukkan konsentrasi Pb di musim kemarau lebih tinggi daripada musim hujan dan sebagian sudah melebihi baku mutu yang mengacu pada Peraturan Pemerintah No. 82 Tahun 2001 tentang Pengelolaan Kualitas Air dan Pengendalian Pencemaran Air untuk logam Pb sebesar 0,03 mg/L. Parameter pendukung yang di analisis yaitu parameter DO, pH, TDS, suhu, kekeruhan, dan kesadahan. Berdasarkan hasil analisis statistik menggunakan PCA, parameter yang paling mempengaruhi konsentrasi Pb di musim kemarau adalah kekeruhan dan suhu sedangkan musim hujan adalah TDS.Kata kunci: Musim, Pb, PCA, Waduk SagulingABSTRACTSaguling Water Reservoir currently shows a decline, both in quality and quantity due to human activities that produce domestic waste, industry, agriculture, livestock, fishery and mining. One of the pollutants in Saguling Reservoir is heavy metal. The research aims to analyze the concentration of Pb in the waters of Saguling Reservoir in different seasons. This research uses secondary data which is obtained from PT Indonesia Power in 2008-2017. The data comes from three depths: surface depth, center, and near bottom of water. Based on the results of the research shows that the concentration of Pb in the dry season is higher than the rainy season and some have exceeded the quality standard which refers to Government Regulation no. 82 of 2001 on the Management of Water Quality and Control of Water Pollution for Pb metal by 0.03 mg/L. The supporting parameters in the analysis are DO, pH, TDS, temperature, turbidity, and hardness parameters. Based on the results of statistical analysis using PCA, the parameters that most influence the concentration of Pb heavy metals in the dry season are turbidity and temperature and rainy season is TDS.Keywords: Season, pb, pca, saguling reservoi

Application of Water Conservation Concept in X Apartment Bogor Regency Eka Wardhani; Windya Sefniza Putri
Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan Vol 19, No 1 (2022): March 2022
Publisher : Universitas Diponegoro

The increase of population in Bogor Regency is directly proportional to the rapid development of residential building construction, one of which is apartment buildings. This resulted in the need for clean water also increased. Water conservation is an effort to maintain the availability of clean water in sufficient quality and quantity to serve the current and future needs of clean water. The application of the concept of water conservation in Apartment X in Bogor Regency can be done using WAC 2 (Water Fixtures) and WAC 3 (Water Recycle). Apartment X building has a building population of 998 people with daily clean water needs of 91,545 liter/day. The wastewater generated by the apartment building is 73,236 liter/day. It is estimated that the implementation of water conservation could save the use of clean water by 28.08% or around 25,701.42 liter/day.

Jatiluhur Reservoir Water Quality Analysis at Various Depths Eka Wardhani; Zulfah Ananda Sugiarti
Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan Vol 18, No 3 (2021): November 2021
Publisher : Universitas Diponegoro

The Jatiluhur Reservoir is an important building in West Java Province whose dams the Citarum River. The location of the Jatiluhur Reservoir, which is the most downstream of the Saguling and Cirata Reservoirs, is where domestic, industrial, and agricultural wastewater pollution is accommodated from water catchment areas so that water quality decreases. This study aims to analyze the water quality in this reservoir at various depths. The study was conducted in September 2020 at 16 sampling points at a depth of 0-8 meters. The water quality parameters analyzed were Temperature, Dissolved Residue (TDS), pH, Dissolved Oxygen (DO), Fluoride (F-), Nitrate (NO3-N), Sulfate (SO42-), BOD5, COD, and Escherichia coli. Based on the study results, it was found that the concentrations of DO, BOD5 and COD at the monitoring location of the Jatiluhur Reservoir did not meet the quality standards. The concentrations of DO, BOD5 and COD respectively 1.00-3.99 mg/L; 3.10-17.00 mg/L; and 28.00-59.00 mg/L. These three parameters contribute to the decline in water quality. The status of water quality using the IP method is categorized as lightly polluted so that it affects the utilization of this reservoir, especially as raw water for drinking water. The highest level of contamination was at the floating net cages sampling location at a depth of 8 m. The decline in water quality in the Jatiluhur Reservoir is caused by organic substances originating from floating net cages waste.

Penerapan Konsep 3R dan Optimasi Rute Pengangkutan Sampah dengan Metode Saving Matriks di Kecamatan Purwakarta Provinsi Jawa Barat Zulfikar Kharis; Eka Wardhani; Dwi Prasetyanto
Jurnal Serambi Engineering Vol 7, No 3 (2022): Juli 2022
Publisher : Fakultas Teknik

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32672/jse.v7i3.4558

Kabupaten Purwakarta mengalami peningkatan jumlah penduduk yang berdampak pada kenaikan timbulan sampah domestik. Menurut Rencana Tata Ruang dan Wilayah strategi untuk peningkatan pelayanan persampahan adalah menerapkan konsep 3R di TPS sehingga mampu mengurangi pengangkutan sampah ke TPA. Faktor lain yang harus dipertimbangkan adalah proses pengangkutan sampah dari TPS ke TPA. Penelitian ini bertujuan menentukan biaya pengangkutan sampah optimal dari TPS ke TPA dengan menggunakan metode Saving Matrix. Metode ini digunakan untuk menentukan rute pengangkutan dari TPS ke TPA dengan faktor yang ditinjau yaitu urutan rute distribusi yang harus dilalui dan jumlah kendaraan berdasarkan kapasitas kendaraan tersebut. Metode ini digunakan agar diperoleh rute terpendek dengan memaksimalkan kapasitas sampah terangkut, sehingga mampu menghemat biaya operasional kendaraan Berdasarkan hasil penelitian timbulan sampah di Kecamatan Purwakarta adalah 447,25 m3/hari, dengan melakukan konsep 3R di TPS 3R mampu mereduksi sampah yang masuk ke TPA sebesar 40% atau hanya 160,57 m3/hari. Hasil pemodelan dengan menggunakan saving matrix menunjukan bahwa jarak tempuh optimal kendaraan dump truck untuk mengangkut residu sampah dari TPS 3R ke TPA sejauh 661,96 km/Hari. Kendaraan tersebut beroperasi sebanyak 11 unit kendaraan dengan jumlah pengeluaran yang dibutuhkan adalah Rp. 1.244.484.000,00-. per tahun.

Studi Mutu Air Sungai Cibaligo Kota Cimahi Provinsi Jawa Barat dengan Metode Indeks Pencemar Yulia Anggraini; Eka Wardhani
Jurnal Serambi Engineering Vol 6, No 1: Januari 2021
Publisher : Fakultas Teknik

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32672/jse.v6i1.2589

Cibaligo River is the polluted rivers in Cimahi City. The river that flows through three districts and 6 sub-districts in Cimahi City catchment area of 666.19 hectares of watershed with a total length of 7 km. The land use of the district through which this river passes is domestic, trade, agriculture, livestock and industry whose waste will end into the Cibaligo River. The impact of these activities causes the river to be polluted and a decrease in water quality. The purpose of this study was to determine the status of water quality from upstream to downstream which represents the transition, dry, and rainy seasons. Knowledge of water quality status can be used as basic data for controlling water pollution in rivers. The pollutant index (IP) method used in this study is in accordance with the Decree of the State Minister for the Environment Number 115 of 2003 concerning guidelines for determining water quality status. The results showed that the water quality status of the Cibaligo River from upstream to downstream represented that each season was categorized as heavily polluted with the highest index value being in the rainy season at the downstream point. The main contributor that causes river water to be heavily polluted is domestic wastewater, especially the presence of total coliform and fecal coliform that exceed the established quality standards. Based on the results of the research, efforts to tackle domestic waste are needed to improve the quality of this river water.

Analysis of Lake Water Quality in Cimahi City, West Java Province Eka Wardhani; Nurul Aulia Fitriani; Virgy Vania Gary Apsari; Faza Kamilah Kusnadi; Fitra Insyirah Rachmanita
Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan Vol 20, No 1 (2023): March 2023
Publisher : Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/presipitasi.v20i1.67-76

Cimahi City is experiencing raw water insecurity. This requires the local government to look for new water sources, such as rehabilitating the condition of existing lakes in their area so that they function again as raw water lake. This study aims to analyze water quality and parameters that exceed quality standards and to calculate the status of lake water quality. The data will be the basis for preparing priority recommendations for lake management. The calculation of this method uses the Pollution Index (PI) method. The lakes studied were lakes located at the Cimahi City Government location, at the Cibabat Hospital, Setiamanah, Ciseupan, and the Cimahi City Infantry Brigade Complex. Based on research results in 2021, all lakes will be in the moderately polluted category, while in 2022 they will be in the low-moderate pollutant category. Lake water quality that has improved is Setiamanah Lake and that in the Cimahi City Infantry Brigade Complex. The two lakes originally had moderate to moderate polluted status with an index value of 8.40 to 4.94, so efforts and control strategies are needed to reduce pollution in the 5 lakes.

Determination of Quality and Trophic Status of Cibabat Lake, Cimahi City Eka Wardhani; Tri Rizki Nopiyani; Dian Noor Handiani
Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan Vol 20, No 1 (2023): March 2023
Publisher : Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/presipitasi.v20i1.114-125

In Cimahi City, the river water is heavily polluted, and well water is not suitable for drinking water, so to anticipate the lack of clean water, the Environmental Service is planning to revitalize one of the ponds, namely the Cibabat Lake. This study’s purpose is to determine the reservoir’s condition based on water quality and trophic status. The method used for calculating water quality status is the Pollutant Index, which refers to the Decree of the Minister of Environment Number 115 of 2003 with results is 8,450, and will be 8,751 in 2022, with the water quality classified status as moderately polluted. Meanwhile, the method to assess trophic status uses the Carlson Trophic State Index (TSI) method by taking air samples for the parameters Total Nitrogen, Total Phosphate, Chlorophyll-a, and brightness which is included in the hypereutrophic category. The Cibabat Reservoir has been polluted by domestic waste based on the calculation of the potential pollutant load such as BOD, COD, TSS, Total Phosphate and Total Nitrogen in the border area is 2,219,600; 3,051,950; 2,108,620; 11,623; and 108,206 kg/day, respectively. DTA area is 1,886.660: 2,594.158; 1,792.327; 9,905; 91.975 kg/day, respectively. This is influenced by the increasing population each year.

Co-Authors Ade Arinda AGUNG GHANI KRAMAWIJAYA Aldi Prasetya Triatmaja Amda Rahman ANITA NURFITRIYANI Anita Rufina Dea Salsabila Dhea Alya Hanifa Dhea Yafina Rinka Dian Noor Handiani Dirgawati, Mila Dwi Prasetyanto Dwina Roosmini Faza Kamilah Kusnadi Fitra Akbar Kamil Fitra Akbar Kamil Fitra Insyirah Rachmanita Halomoan, Nico JULIA PUTRI ADANI Kancitra Pharmawati, Kancitra Luvina Oktavia Lukman Putri MIRZA KHOERUN FURQON MULYA Mochammad Azhar Rais Alfaroby Mohamad Rangga Sururi Muhammad Viqi Rafianto Muhammad Viqi Rafianto MUMU SUTISNA Nurul Aulia Fitriani Rachmawati S Dj, - RIKA NURKEMALASARI Rio Andi Suhandi Rosmeiliyana Rosmeiliyana Sah Ahmada Fibra Sarah Az Zahra Siti Amalia Fajriyah Suprihanto Notodarmojo Tri Rizki Nopiyani Virgy Vania Gary Apsari Windya Sefniza Putri Yulia Anggraini Zulfah Ananda Sugiarti Zulfikar Kharis

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