Claim Missing Document
Check
Articles

Found 28 Documents
Search

Analisis CO2 Pertumbuhan Mikro Alga Hijau dengan Menggunakan Fermentor dalam Tanki Tertutup Bahagia Bahagia; Vera Viena
Jurnal Serambi Engineering Vol 4, No 1 (2019): Vol. 4. Edisi Khusus
Publisher : Fakultas Teknik

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32672/jse.v4i1.980

Abstract

Microalgae are photosynthetic microorganisms with varying cell morphology, both unicellular and multicellular (forming small colonies). This research is about CO2 for the growth of green microalgae by cultivating algal strains in tank type reactors or fermenters. The study included optimization of the productivity of green algae in the capture of CO2 which can be used as a greenhouse gas catcher. Green algae were isolated from several waters in Banda Aceh. These microalgae species are isolated and have been identified, then cultivated in irradiated tank containers with 4 fluorescent lamps (2x8 watts; 4x8 watts) installed on the outside of the tank. This study evaluated the comparison of the growth of aerated microalgae O2 (1.25 liters / minute) with fixation of CO2 (1 and 2 liters / minute). Catching CO2 into carbon dioxide by looking at growing biomass, and the yield content of oil in biomass. The results showed that there were significant differences in the growth patterns of microalgae given O2 aeration and CO2 fixation. Modified CHU 13 Detmer Modified media did not provide a significant difference to algal growth. With a large intensity of light with a medium that is sufficient to increase the growth of microalgae until it reaches the death phase. 
Produksi Karbon Aktif dari Cangkang Sawit dan Aplikasinya Pada Penyerapan Zat Besi, Mangan Dan ph Air Sumur Vera Viena; Bahagia Bahagia; Zairi Afrizal
Jurnal Serambi Engineering Vol 5, No 1 (2020)
Publisher : Fakultas Teknik

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32672/jse.v5i1.1660

Abstract

Most of the solid waste from Palm oil Industry in Indonesia has not been exploited optimally to become valuable product. This research aims to produce activated carbon from palm oil shell waste and applied it for the adsorption of Fe, Mn and pH of shallow well. Production of Palm shell activated carbon (PSAC) were done under following steps; e.i palm shell preparation, oven dried, carbonization at 400 0C, dan then activated at 600 0C. PSAC Characterization conducted based on Indonesion Standard of SNI No.06-3730-95, which consist of water content, ash content, fly ash content and fixed carbon, while surface of PSAC analized using FTIR method. Shallow well sampling were taken from 2 wells from Drien Tujoh Village, Nagan Raya District. PSAC contacted time varied from 30-120 minute. The highest PSAC adsorption efficiency were obtained both at 120 minute contacted time, which range from 10,41 - 58,34% for Fe(II); 9,51 - 48,90% for Mn(II) and pH raised from 5,8 to 7,6. In conclusion, the PSAC product has been able to remove Fe, Mn and pH content in accordance with water quality standard published by Indonesian Government, and it could be marketed for increasing the people’s income.
Biosorpsi BOD Dan TSS Limbah Laundri Oleh Tanaman Eceng Gondok (Eichhornia crassipes) Vera Viena Vera Viena
Jurnal Serambi Engineering Vol 1, No 1 (2016)
Publisher : Fakultas Teknik

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32672/jse.v1i1.310

Abstract

The research to assess the use of water hyacinth Eichhornia crassipes in biosorption process to remove BOD and TSS contents of laundri wastewater has been conducted. The research has 3 steps, e.i: (1) Preparation: water hyacinth cultivation in variated laundri wastewater 25%, 50% and 100% v/v, and wastewater analysis before process, e.i BOD, TSS, and pH; (2) Field test: cultivation of acclimatized water hyacinth in laundri wastewater with variation of surface coverage of 25%, 50% and 100% of total area; (3) Analysis of BOD, TSS in wastewater to account the biosorption eficiency. Results showed that water hycinth cultivation for 6 days gave the highest BOD (Biochemical Oxygen Demand) biosorption eficiency of 95,98%, which decreased from 544 mg/L to 21,85 mg/L value at total 100% area coverage. Water hyacinth also able to biosorp TSS (Total Suspended Solids) of 79,36%, which decreased from 218,00 mg/L to 44,99 mg/l value at total 100% area coverage. These BOD and TSS removals was affected by the organic metabolism and water hyacinth photosyntesis that made the laundri wastewater save for discarded to waterbody
PENGARUH WAKTU AKTIVASI TERHADAP KARAKTERISTIK ADSORBEN DARI KULIT PISANG KEPOK (Musa acuminate L) YANG DIAKTIVASI SECARA FISIKA Elvitriana; Vera Viena; Muhammad Nizar; Sari Wardani
Jurnal Teknik Kimia USU Vol. 6 No. 1 (2017): Jurnal Teknik Kimia USU
Publisher : Talenta Publisher (Universitas Sumatera Utara)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (265.808 KB) | DOI: 10.32734/jtk.v6i1.1560

Abstract

This study aimed to analyze the effect of activation time on characteristics of banana peels (Musa acuminate L) adsorbent prepared by physics activation. The adsorbent was prepared through two stages, the carbonation of banana skin conducted at 400 oC for 1.5 hours and the physics activation process conducted at 600 oC for 15, 30, and 45 minutes with variations 50 mesh and 100 mesh in size. Adsorbent characteristic parameters analyzed were water content, ash content, volatile matter, fixed carbon, adsorption capacity of iodine, and determination of functional groups using FTIR. Results showed that characteristics of banana peels adsorbent met SNI No. 06-3730-1995 with a water content of 2-8%, 2-9% ash content, 12-17% volatile matter, fixed carbon 73-84% with iodine absorption of 952 mg/g. Results of FT-IR spectra, adsorbent has an absorption band spectra at wave number of 2850 – 2960 cm-1 with stretching vibration appeared on C-H group with intensity 92.50 with activation time of 45 minutes and 50 mesh size. Based on its characteristics analysis, it can be concluded that adsorbent from banana peels has potential to be applied as one of the active carbon absorbent for liquid and gaseous waste.
Analisis Kualitas Air Permukaan DAS Alas-Singkil Untuk Monitoring Tingkat Pencemaran Air Permukaan Zulkifli AK; Bahagia Bahagia; Suhendrayatna Suhendrayatna; Vera Viena
Jurnal Nasional Komputasi dan Teknologi Informasi (JNKTI) Vol 4, No 6 (2021): Desember 2021
Publisher : Program Studi Teknik Informatika, Fakultas Teknik. Universitas Serambi Mekkah

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32672/jnkti.v4i6.4660

Abstract

Abstrak -  Kualitas air permukaan yang mengalir di Daerah Aliran Sungai (DAS)Alas Singkil perlu dilakukan analisis komponen/indikator lingkungannya. Pengukuran kualitas air sungai akibat adanya pencemaran. DAS Alas Singkil menaungi delapan sungai di Kota Subulussalam yang bergabung membentuk sungai. Tujuan penelitian adalah untuk menganalisis tingkat pencemaran air sungai Wilayah Sungai (WS) Alas-Singkil dengan parameter uji Total suspended Solid (TSS), pH, kandungan oksigen dan kadar logam. Hasil penelitian menunjukkan suhu daerah aliran sungai (DAS) Alas Singkil menunjukkan kisaran antara 27,4 – 29,1 °C. Suhu dapat mempengaruhi fotosintesis di sungai wilayah Alas Singkil baik secara langsung maupun tidak langsung. Hasil uji TDS menunjukkan nilai 23,9 mg/L - 97,5 mg/L yang masih berada dibawah baku mutu. Lokasi paling tinggi TDS berada pada titik Sungai Lae Kombih (AP2) dan nilai paling rendah pada lokasi Sungai Lae Soraya (AP1). Hasil uji menunjukkan bahwa  nilainya masih dibawah baku mutu yaitu 1.000 mg/L. Hasil uji TSS antara  4 -36 mg/L. Konsentrasi TSS semua lokasi tidak melebihi baku mutu yang telah ditetapkan oleh Peraturan Pemerintah RI No. 22 Tahun 2021 tentang Penyelenggaraan Perlindungan dan Pengelolaan Lingkungan Hidup untuk Kelas Air II.  Hasil uji pH lebih stabil dan berada dalam kisaran yang sempit yaitu 6,82–8,86 pH karena dipengaruhi oleh kapasitas penyangga (buffer) yaitu adanya sedimentasi aliran sungai.  Hasil uji kadar logam : tembaga (CU), Timbal (Pb), Cadmium (Cd) dan Seng (Zn) pada Daerah Aliran Sungai (DAS) Alas  Singkil menunjukkan masih barada dalam ambang batas dengan hasil uji Laboratoirum dibawah baku mutu yaitu 0,0008 b , 0,0001 b , 0,0004 b dan 0,0001 b  (Tidak terdeteksi karena berada di bawah Batas Minimum Deteksi Alat Uji).  Kata kunci : Air permukaan, DAS, kualitas, pencemaran air sungai, pemantauan dan penertiban.  Abstract –  The quality of surface water flowing in the Alas Singkil Watershed (DAS) needs to be analyzed for environmental components/indicators. Measurement of river water quality due to pollution. The Alas Singkil watershed covers eight rivers in Subulussalam City which combine to form rivers. The purpose of the study was to analyze the level of water pollution of the Alas-Singkil River Basin (WS) with the test parameters of Total suspended Solid (TSS), pH, oxygen content and metal content. The results showed that the temperature of the Alas Singkil watershed showed a range between 27.4 – 29.1 °C. Temperature can affect photosynthesis in the Alas Singkil river area either directly or indirectly. The TDS test results showed a value of 23.9 mg/L - 97.5 mg/L which was still below the quality standard. The highest location for TDS is at the point of the Lae Kombih River (AP2) and the lowest value is at the location of the Lae Soraya River (AP1). The test results show that the value is still below the quality standard of 1000 mg/L. TSS test results between 4 -36 mg/L. The concentration of TSS in all locations does not exceed the quality standard set by the Government of Indonesia Regulation No. 22 of 2021 concerning the Implementation of Environmental Protection and Management for Water Class II. The pH test results are more stable and are in a narrow range of 6.82-8.86 pH because it is influenced by the buffer capacity, namely the presence of river flow sedimentation. The test results for the levels of metals: copper (CU), Lead (Pb), Cadmium (Cd) and Zinc (Zn) in the Alas Singkil Watershed (DAS) showed that they were still within the threshold with the Laboratory test results below the quality standard, namely 0, 0008 b , 0.0001 b , 0.0004 b and 0.0001 b (Not detected because it is below the Minimum Detection Limit for Test Equipment).Keywords: Surface water, watershed, quality, river water pollution, monitoring and control.
Efektivitas Penurunan COD, BOD dan TSS Limbah Industri Sawit Menggunakan Koagulan Kimia dan Ekstrak Alami Pati Pelepah Sawit Vera Viena; Bahagia Bahagia; Nurlaini Nurlaini; Rizki Juanda
Jurnal Serambi Engineering Vol 8, No 1 (2023): Januari 2023
Publisher : Fakultas Teknik

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32672/jse.v8i1.5662

Abstract

AbstractRiver water pollution occurs because the disposal of palm oil waste into water bodies that are not managed by factories effectively has affected river pollution in Nagan Raya. The impact has caused the death of fish in the river. The purpose of this study was to analyze the effect of natural coagulant palm frond starch on the treatment of parameters biochemical Oxygen Demand (BOD), Chemical Oxygen Demand (COD) and Total Suspended Solid (TSS). Palm oil mill Effluents (POME) wastewater samples were taken from the cooling ponds of PT. X in Nagan Raya District and wet palm fronds obtained from community plantations. The POME was pretreated with sedimentation for 24 hours and continued with the Palm natural starch and PAC (Poly Aluminum Chloride) chemical coagulation process. The results showed that the COD test with a contact time of 60 minutes decreased by 19.79%, at contact time of 120 minutes by 48.97% and at contact time of 180 minutes by 74.48%. The results of the BOD test showed that there was a decrease along with a contact time of 60 minutes by 20.48%, a contact time of 120 minutes by 35.30% and a contact time of 180 minutes by 68.08%. The results of the TSS test showed a decrease in TSS with a contact time of 60 minutes by 48.37%, a contact time of 120 minutes by 81.70% and a contact time of 180 minutes by 92.43%.Keywords: palm frond starch, coagulant, sedimentation, palm oil mill effluent (POME)
The Application of Anaerobic Plastic Media Biofilter for Removal of Ammonia and Oil and Grease in Slaughterhouse Wastewater Vera Viena; Suarni Suarni; Irda Yunita
Serambi Journal of Agricultural Technology Vol 3, No 1 (2021): Juni
Publisher : Universitas Serambi Mekkah

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32672/sjat.v3i1.2984

Abstract

Slaughterhouse wastewater generally contains organic substances, fatty oils and ammonia which can cause pollution to the environment. This study aims to analyze the removal efficiency of ammonia, oil and grease and pH of the slaughterhouse wastewater from Banda Aceh using an anaerobic biofilter. The bioreactor was acclimatized for 30 days to form a biofilm layer before being used as a biofilter. The results showed a decrease in the oil and grease content and pH of the slaughterhouse wastewater after given 6 days contacted time. Ammonia parameter increased by 2.02%, while the efficiency of oil and grease and pH also increased by 96.667% and 30.927%, respectively. It can be concluded that the anaerobic plastic media biofilter has been able to reduce the oil grease content and pH of slaughterhouse below the quality standard, except for ammonia which exceeds the quality standard of Environmental Government Regulation no. 5 of 2014.
Improvement of Gayo Lues Patchouli Oil Alcohol Quality With Absorbent Variations of Juice And Purut Orange Peel (Citrus hystrix) Vera Viena; Elvitriana Elvitriana; Zulhaini Sartika; Diana Patra
Serambi Journal of Agricultural Technology Vol 2, No 2 (2020): Desember
Publisher : Universitas Serambi Mekkah

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32672/sjat.v2i2.2470

Abstract

Patchouli oil refinery in Gayo Lues Aceh Indonesia commonly used evaporation process in an old drums at high temperature which decreased the quality of oil produced. The research to enhance the quality of patchouli alcohol of Gayo Lues patchouli oil using Citrus hystrix absorber has been done.The juice from kaffir lime (1 – 10 % v/v) used as chelating agent, and the kaffir peels powder (2,5 - 7 gr) used as bio sorbent. The highest patchouli alcohol (P.A) both resulted at T=50 oC and 60 minutes heating. Kaffir bio sorbent at 7,5 gr usage, gave 40,37% P.A and Fe reduction of 77,67%; while kaffir lime juice at 4% v/v usage, gave P.A 39,90% and Fe reduction of 78,25%. Purified patchouli oil also characterized by its light yellow color, density and refractive index based on SNI.06-2385-2006. It’s concluded that kaffir peels bio sorbent purification has superior P.A quality than kaffir lime juice.
Pengolahan Limbah Cair Berkelanjutan Pada Perumahan Panterik Banda Aceh Menggunakan Biofilter dan Filter Pasir Lambat Rican Handika; Vera Viena; Bahagia Bahagia
Jurnal Serambi Engineering Vol 8, No 3 (2023): Juli 2023
Publisher : Fakultas Teknik

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32672/jse.v8i3.6428

Abstract

Air limbah domestik yang dihasilkan dari perumahan Panterik Banda Aceh dikumpulkan pada sebuah kolam terbuka di kampung dengan karakteristik limbah berwarna hitam kecokelatan dan mengeluarkan bau tidak sedap terhadap masyarakat sekitar. Penelitian ini bertujuan untuk menganalisa efektifitas kinerja biofilter bermedia sedotan plastik dan pasir lambat dalam mengolah limbah cair domestik sebagai alternatif pengolahan limbah cair berkelanjutan. Efektifitas penyisihan pada tiap unit proses diukur pada waktu tinggal 0 hari, 2 hari, 4 hari dan 6 hari, dengan pemberian perlakuan awal pengendapan dan tanpa pengendapan 24 jam. Nilai pH sebelum perlakuan adalah 5 dan meningkat menjadi 7 setelah 6 hari. Hasil penelitian menunjukkan efektifitas penyisihan limbah dengan perlakuan pengendapan pada parameter TSS, BOD dan COD secara berturut-turut sebesar 92.13%, 77.28% dan 58.83%. Perlakuan tanpa pengendapan menunjukkan kadar TSS 86.89 %, BOD 71.52%, and COD 26.92%. Hai ini dapat disimpulkan bahwa waktu kontak dan perlakuan awal sangat berpengaruh terhadap efektifitas pengolahan limbah cair domestik. Nilai parameter: pH, TSS, BOD dan COD masih dalam standar Baku Mutu PermenLHK No. 68/Menlhk/Setjen/Kum.1/8/2016, dan aman dibuang ke badan air. Kombinasi proses biofiltrasi dan filtrasi terbukti mampu diterapkan sebagai salah satu pendekatan berkelanjutan dalam pengolahan limbah Perumahan Panteriek dan perumahan lainnya di Banda Aceh.
Design Planning of Wastewater Treatment Plant at Lading Hotel Banda Aceh Dian Fatziaty; Vera Viena; Teuku Muhammad Ashari
Proceeding of International Conference on Multidisciplinary Research Vol. 6 No. 2 (2024): ICMR
Publisher : Universitas Serambi Mekkah

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32672/picmr.v6i2.1268

Abstract

Lading Hotel is one of the hotel industries that has a strategic location in the city center of Banda Aceh. Lading Hotel produces domestic wastewater as much as 95,000 L / day generated from kitchen activities, laundry, bathrooms, and cafes. The wastewater preliminary results showed the parameter COD 381 mg / L and TSS 371 mg / L has exceeded the quality standards set by the government. To addresses these problems, this study aims to do a design planning of the wastewater treatment plant (WWTP) in Hotel Lading. The steps of treatment technology chosen in this study consist of equalization basins, sedimentation basins with additional aeration from blowers, anaerobic biofilter basins and subsurface flow type wetlands. The planning stages include collecting data, processing data, design planning, making BoQ and drawing conclusions. The results of dimensions calculation for design drawings e.i: the equalization basin is 3.6 m × 2 m × 3 m (7.4 m2), sedimentation basin with dimensions of 3.6 m × 1.8 m × 3 m (6.48 m2), anaerobic biofilter basin with dimensions of 2.4 m × 1.2 m × 3 m (2.88 m2) and Subsurface wetland dimensions of 4 m × 1 m × 1 m (4 m2). Total land area required for WWTP design planning was 20.76 m2.