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All Journal Jurnal Ilmu Lingkungan Jurnal Sains dan Teknologi Komunikasi Fisika Indonesia Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Equilibrium Journal of Chemical Engineering Jurnal Teknik Kimia Indonesia Journal of Bioprocess Chemical and Environmental Engineering Science Dinamika Lingkungan Indonesia Bhakti Nagori (Jurnal Pengabdian kepada Masyarakat)
Adrianto Ahmad
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Kinerja bioreaktor hibrid anaerob bermedia tandan dan pelepah sawit dalam penyisihan cod Ahmad, Adrianto; Amraini, Said Zul; Luturkey, Yance Andre
Jurnal Teknik Kimia Indonesia Vol 10, No 3 (2011)
Publisher : ASOSIASI PENDIDIKAN TINGGI TEKNIK KIMIA INDONESIA (APTEKIM)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5614/jtki.2011.10.3.4

Abstract

Performance of anaerobic hybrid bunch-frond palm mediated bioreactor in COD elimination The high contents of Chemical Oxygen Demand (COD) in palm oil mill wastewater is able to cause the obstructed connection between air and a receiver of water body so that can make the lessening oxygen solubility in the receiver of water body. Hence, it is important to do innovation to get a good technology process of wastewater in order that the contents of COD become low. One of the wastewater processes can be done by using hybrid anaerobic bioreactor in eliminating COD that exists in palm oil mill wastewater. This research uses two units of hybrid anaerobic bioreactor i.e. hybrid anaerobic bioreactor mediated immobilization cell of empty stem palm and hybrid anaerobic bioreactor mediated immobilization cell of in 2.5 m3 of work volume. The process is done by using variation of imposition organic rate i.e. 10, 12.5, 14.28, 16.6, 20, 25, 33.3, and 50 kg COD/m3-day. The result of research showed that the highest eliminating COD is 82.67% in 14.28 kg COD/m3-day in bioreactor filled with empty palm fruit bunch and 84% for imposition organic rate 16.6 kg COD/m3-day in bioreactor filled with palm midrib. Therefore, both hybrid anaerobic bioreactors can be used for processing oil palm mill wastewater in high load of COD. Keywords: hybrid bioreactor, COD, wastewater, palm midrib, empty stem palmAbstrakKandungan Chemical Oxygen Demand (COD) yang tinggi dalam limbah cair pabrik minyak sawit dapat menyebabkan terhambatnya kontak antara udara dengan badan air penerima sehingga mengakibatkan berkurangnya kelarutan oksigen dalam badan air penerima tersebut. Oleh karena itu, penting dilakukan terobosan baru untuk mendapatkan teknologi pengolahan limbah cair yang handal agar kandungan COD menjadi rendah. Salah satu teknologi pengolahan limbah cair tersebut adalah bioreaktor hibrid anaerob. Penelitian ini bertujuan mengkaji kinerja beberapa jenis bioreaktor hibrid anaerob dalam penyisihan COD dalam limbah cair pabrik minyak sawit. Pada penelitian ini digunakan dua unit bioreaktor yakni bioreaktor hibrid anaerob dengan media imobilisasi sel tandan kosong sawit dan bioreaktor hibrid anaerob dengan media imobilisasi sel pelepah sawit dengan volume kerja 2,5 m3. Proses pengolahan dilakukan dengan variasi laju pembebanan zat organik, yaitu10; 12,5; 14,28; 16,6; 20; 25; 33,3; 50 kg COD/m3hari. Hasil penelitian menunjukkan bahwa penyisihan COD yang tertinggi dicapai sebesar 82,67% dengan laju pembebanan organik 14,28 kg COD/m3hari pada bioreaktor bermedia tandan kosong sawit dan 84% untuk laju pembebanan organik 16,6 kg COD/ m3hari pada bioreaktor bermedia pelepah sawit. Dengan demikian, kedua bioreaktor hibrid anaerob ini dapat digunakan untuk mengolah limbah cair industri minyak sawit dengan beban COD tinggi.Kata kunci: bioreaktor hibrid, COD, limbah cair, pelepah sawit, tandan kosong sawit
Pengaruh Laju Alir Umpan Terhadap pH, Alkalinitas Dan Asam Volatil Pada Pengolahan Limbah Cair Kelapa Sawit Menggunakan Bioreaktor Hibrid Anaerob Dua Tahap Salis, Gita Aziza; Ahmad, Adrianto; Muria, Sri Rezeki
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 2, No 1 (2015): Wisuda Februari Tahun 2015
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Abstract

Ratio of total volatile acid and alkalinity can represent the stability of bioreactor. Goal of this experiment is to determine the influence of feed flow rate to change of pH, alkalinityand volatile acid in two stage of anaerobic hybrid bioreactor, it also to knows the stability rate of bioreactor that used. Bioreactor that used in this experiment is a bioreactor thathave two pattern of microorganism growth there are suspended and cling phase with rock and palm oil shells as the immobilize media of microorganism cell. Active volume of bioreactor that used in this experiment is 10 liter with variating feed flow rate 1,4; 2; and 3,3 L/day for 2nd stage bioreactor with operation condition pH 6,8 – 7,2 in room temperature. Parameter that analyzed from this experiment is the ratio of volatile acid withalkalinity from bioreactor effluent. In 1st stage of bioreactor, feed flow rate that used is 5 L/day and the result found was average of pH in 6,7; average of alkalinity concentration is2220,8 mg/L and average of volatile acid concentration is 413,52 mg/L so that ratio of TAV/Alkalinity was 0,812. Results of this experiment shows that the highest stability of 2nd anaerobic hybrid bioreactor is 0,033 in smallest feed flow rate 1,4 L/day.Keywords : alkalinity; Hybrid anaerobic bioreactor; stability; Volatile acids
Pengaruh Laju Pengadukan Dalam Pembuatan Bioetanol Dari Limbah Serabut Buah Sawit Menggunakan Saccharomyces cerevisiae Jeckson, Edie; Ahmad, Adrianto; Muria, Sri Rezeki
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 1, No 2 (2014): Wisuda Oktober Tahun 2014
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Abstract

The development of new and renewable energy resources of government’s strategies to reduce CO2 emission from industry waste and declining for national dependence of oil fuel. One of alternative energy that use to substitute a fuel oil is bioethanol. Palm fruit fibre waste is the one of potential source because of the biggest feedstock in Indonesia and the less uses that waste well. Some of type process used to convert bioethanol from industry waste, such as fermentation. The purpose of this experiment is decide the effect of fermentation in bioethanol production from palm fruit fibre waste to get an optimum bioethanol product. This experiment had pretreatments like delignification with ash extract palm fruit bunch and purification with H2O2 3% that were used to remove lignin in palm fruit fibre waste compound to get a lot of cellulose compound. The fermentation that use in this experiment is Separate Hydrolysis Fermentation (SHF) which is hydrolysis and fermentation done separately. Hydrolysis process using H2SO4 2 M for convert cellulose become glucose then will be done by anaerob fermentation by Saccharomyces cerevisiae. The variation of agitation speed (100, 150, 200, and 250 rpm) while fermentation learned to get an optimum bioethanol percentage. The result of experiment showed that in agitation speed at 200 rpm while 96 hours can convert a bioethanol 5 % (v/v) 39,465 g/L.Keywords: Agitation speed, bioethanol, delignification, Saccharomyces cerevisiae, palm fruit fibre waste, purification, SHF (Separate Hydrolysis Fermentation)
Analisis Kualitas Air Hujan Sebagai Sumber Air Minum Terhadap Kesehatan Masyarakat (Studi Kasus di Kecamatan Bangko Bagansiapiapi) Anuar, Khairil; Ahmad, Adrianto; Sukendi, Sukendi
Dinamika Lingkungan Indonesia Vol 2, No 1 (2015)
Publisher : Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (96.348 KB) | DOI: 10.31258/dli.2.1.p.32-39

Abstract

This study was conducted from May 2013 - May 2014. Locations research wasconducted in the District of Bangko Bagansiapiapi. This study aims to determine the qualityof rainwater as a source of public drinking water in the District of Bangko Bagansiapiapi,knowing the health effects of consuming rainwater as drinking water and contribute ideas forthe Government of Rokan Hilir to be able to hold clean water for the people of the District ofBangko Local Government of Rokan Hilir . The results were obtained as follows: (1). Thequality of rainwater in the study site based on the results of laboratory parameters in terms ofinorganic chemistry, physical parameters, chemical parameters still below the drinking waterquality standards that are required by Minister Regulation No. 492 / Menkes / Per / IV / 2010showed that the rain water at the study site that rain water can be consumed by the public andis not harmful to health. 
Analisa Konduktivitas Hidrolika Pada Sistim Akuifer Juandi M; Adrianto Ahmad; Muhammad Edisar; Syamsulduha '
Komunikasi Fisika Indonesia Vol 9, No 04 (2012)
Publisher : Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (325.5 KB) | DOI: 10.31258/jkfi.9.04.387-400

Abstract

Hasil penelitian telah diperoleh bahwa ada empat lapisan penyusun akuifer bebas yangditemukan berdasarkan data geolistrik dengan urutan litologinya adalah tanah penutup, pasir, clay danlempung. Ketebalan lapisan yang diperoleh berdasarkan data geolistrik berturut – turut adalah 10 m,2,5 m, 1 m dan 1 m. Parameter akuifer bebas dalam hal ini konduktivitas hydraulik rata – rata sistimakuifer yang diteliti adalah sebesar 0,795 m/hari. Nilai konduktivitas hydraulic rata-rata inimerupakan factor untuk melihat kondisi keberlanjutan suatu akuifer bawah tanah.
DAMPAK RADIASI TERHADAP KESEHATAN PEKERJA RADIASI DI RSUD ARIFIN ACHMAD, RS SANTA MARIA DAN RS AWAL BROS PEKANBARU Mayerni Mayerni; Adrianto Ahmad; Zainal Abidin
Jurnal Ilmu Lingkungan Vol 7, No 1 (2013): Jurnal Ilmu Lingkungan
Publisher : Program Pascasarjana Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jil.7.1.p.114-127

Abstract

Cultural safety is an important issue and should be targeted to be realized. This studyaims to determine the radiation dose and the results of medical examinations ofworkers working in the field of radiation during radiation at District General HospitalArifin Achmad Hospital Santa Maria and the Awal Bros hospital Pekanbaru. This typeof research is a kind of quantitative and qualitative research through a thematicapproach to correlation and analysis. Sampling technique using simple randomsampling as many as 39 people. Data analysis using correlation and Collaizi. Theresults of the 39 respondents indicating that the radiation workers in some PekanbaruCity Hospital RESULTS majority of radiation dose exposure in the normal categorywhich totaled 39 people (100%) from 2008 to 2011. For respondents leukocyte levels inthe normal range in the period of 2008 as many as 36 people (92.7%), in 2009 as manyas 38 people (97.4%), in 2010 as many as 38 people (97.4%), and in 2011 as manyas 35 people (89.7%). Statistically there is a weak correlation between radiationexposure to changes in the levels of leukocytes. It is characterized by the discovery ofradiation workers against health problems while working at the hospital. Mostrespondents have implemented radiation protection in accordance with the principlesof radiation protection such as the use of PPE, fillm badge, apron and to theenvironment in some Hospitals already use sunscreen with a protective layer of lead(Pb) and have been using glass-coated monitor lead (Pb).
KAJIAN TOKSISITAS LIMBAH BIOSLUDGE YANG BERASAL DARI IPAL INDUSTRI PULP DAN KERTAS DENGAN METODE TOXICITY CHARATERISTIK LEACHING PROCEDURE Yuzelma Yuzelma; Adrianto Ahmad; Nofrizal Nofrizal
Jurnal Ilmu Lingkungan Vol 7, No 1 (2013): Jurnal Ilmu Lingkungan
Publisher : Program Pascasarjana Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jil.7.1.p.60-67

Abstract

Pulp and paper industry is one of industry that is relatively much generate solid waste, oneof is the solid waste from the Waste Water Treatment Plant with activated sludge systems,known as biosludge. Biosludge output from the secondary clarifier portion is returned to theprimary clarifier and partly in landfills. Present day this untapped biosludge waste properly,potentially causing pollution as they contain chemicals and hazardous, cause odor and landhoarding unproductive. Present day pulp and paper industries generate solid waste(biosludge) among 3-4 % of the production capacity. In this research has been done the testof Toxcicity Characteristic Leaching Procedure (TCLP). Method TCLP analysis performed isa method of Glass JAR USEPA SW-846 Method 1311. TCLP analysis results for each ofthese metals concentrations in unit mg per liter samples are: arsenic (0.004), barium(0.122), boron (2.66), cadmium (0.011), chromium (0.003), copper (0.025), copper (0.051),mercury (0.0003), selenium (<0.001), silver (<0.001), zinc (0.084). TCLP concentrationswere below the TCLP standards contained in Regulation No. 18 and 85/1999. According tothe delisting hierarchy non hazardous and toxic waste by regulation number 85/1999, wastebiosludge pulp and paper categorized as non hazardous and toxic waste. Althoughcategorized as non hazardous and toxic waste, destruction of the future scenario will come tobe a concern. Given the heavy metals in the environment are not easily degraded and eventends to accumulate in the food chain through biomagnification. It can be harmful to humanhealth, the survival of other creatures and can cause damage to the ecosystem. 
ANALISIS PARAMETER AKUIFER BEBAS KOTA PEKANBARU UNTUK KEBERLANJUTAN AIR BAWAH TANAH Juandi Juandi; Adrianto Ahmad; Edisar Edisar; Syamsulduha Syamsulduha
Jurnal Ilmu Lingkungan Vol 7, No 2 (2013): Jurnal Ilmu Lingkungan
Publisher : Program Pascasarjana Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jil.7.2.p.148-158

Abstract

Studies have been conducted to analyze the unconfined aquifer parameters City Pekanbaru.Based on the results obtained that the unconfined aquifer transmissivity Pekanbaru City is13,58, value - average yield sfesifik unconfined aquifer by geoelectric measurementpoint in the city of Pekanbaru is 17.67%, average hydraulic conductivity value unconfinedaquifer by geoelectric measurement point in the city of Pekanbaru is 1,87 m / day andunconfined aquifer thickness value based geoelectric measurement point in the city ofPekanbaru is 7,264 m. 
OPTIMASI PROSES PEMUTIHAN ACACIA KRAFT PULP DENGAN PROSES BIOBLEACHING SEBELUM CHEMICAL BLEACHING UNTUK MENGURANGI PEMAKAIAN BAHAN KIMIA Amrizal &#039;; Adrianto Ahmad; Bahruddin &#039;
Jurnal Sains dan Teknologi Vol 15, No 1 (2016): Jurnal Sains dan Teknologi
Publisher : Fakultas Teknik Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (336.798 KB) | DOI: 10.31258/jst.v15.n1.p1-6

Abstract

Proses pemutihan pulp dengan enzim (Biobleaching) sebelum pemutihan dengan bahan kimia membantu menurunkan konsumsi bahan kimia pemutih (ClO2). Penelitian ini bertujuan untuk mengetahui kondisi optimum proses biobleaching terhadap kenaikkan derajat kecerahan pulp, pengaruhnya terhadap konsumsi ClO2 dan kualitas pulp serta dampaknya terhadap lingkungan. Sampel kraft pulp, terbuat dari campuran kayu acacia mangium, acacia crassicarpa dan eucalyptus. Enzim yang digunakan xylanase dengan aktivitas enzim sebesar 5000 IU/ml. Variabel proses terdiri dari waktu (X1), suhu (X2), pH (X3), dan dosis enzim (X4). Optimasi dilakukan pada berbagai variasi waktu (30, 60, 120, 180) menit, suhu (60, 70) oC, pH (4, 5, 6, 7, 8), dan dosis (0,2, 0,5, 1,0) kg/ton pulp dimana biaya enzim dan bahan kimia sebagai faktor kendala. Hasil penelitian menunjukkan bahwa pH dan dosis enzim merupakan faktor signifikan yang berpengaruh terhadap kenaikan derajat kecerahan pulp. Hubungan antara kenaikkan derajat kecerahan (Y) terhadap pH dan dosis enzim ditunjukkan dengan persamaan Y = 0,792+0,576X3+0,688X4. Kondisi optimum biobleching diperoleh pada pH 8 dan dosis enzim 0,142 kg/Ton pulp dimana kenaikkan derajat kecerahan adalah sebesar 5,5%. Konsumsi ClO2 turun 15,2% dan kadar AOX turun 30% dibandingkan proses tanpa enzim. Kekuatan tarik pulp menunjukkan kenaikkan dari 64,2 N/m2 menjadi 65,2 N/m2.Kata kunci : AOX, biobleaching, derajat kecerahan, enzim xylanase, pulp
Pengaruh Laju Alir Substrat Terhadap Konsentrasi Sel pada Fermentasi Reject Nanas Menjadi Bioetanol Secara Kontinu Rendy Hidayat; Adrianto Ahmad; Sri Rezeki Muria
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 2, No 1 (2015): Wisuda Februari Tahun 2015
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Abstract

Bioethanol is a renewable alternative energy sources that can be used as an alternative fuel. A substance that potential as bioethanol feedstock is rejected pineapple, which it was wasted of pineapple plantation that never be used optimally. Glucose content of rejected pineapple can be converted into bioethanol through fermentation process. This research aimed to determine the effect of cells concentration on bioethanol conversion with substrates flow rate variation of rejected pineapple fermentation into bioethanol, determine the substrate flow rate influences of cell concentration, and determine the optimum residence time of rejected pineapple continuous fermentation process. Fixed variable used is 5 liters of holding capacity, 4.5 of pH, 0.3% contents of inoculum, 0.5% contents of urea, 0.08% contents of phosphorus and room temperature used as fermentation temperature. Varied variables is the variation of feed flow rate: 5 L / day; 2.5 L / day; 1.67 L / day; 1:25 L / day and 1L / day. Research procedures include pretreatment, inoculation, fermentation and purification using a vacuum evaporator. Analysis performed into cell concentration and ethanol concentration analysis. The results showed that the optimum flow rate was 2.5 L / day with the of ethanol 7% contents and 17.1 g / L of cells concentrationKeyword: Bioethanol, continuous, cells concentration, Saccharomyces cereviceae
Co-Authors Adinda Ryvania Abrir Ahmad Fadli Aman Aman Amir Awaluddin Amrizal &#039; Amun Amri Apriadi Rio Ardian, Siti Bagus Anugrah Bahruddin Bahruddin &#039; Bahruddin Bahruddin Chairul Chairul David Andrio Devita Ulfa Sari, Devita Ulfa Dwi Mina Intan Permadi Edisar Edisar Edward HS Edward Hs Elda Nazriati Elfina Noviarni Chandra Elvi Yenie, Elvi Firmanto, Firmanto Gita Aziza Salis, Gita Aziza Handayani, K.H Sri Hartati Hartati Intan Oktaviani Jeckson, Edie Juandi Juandi Khairat Khairat, Nur Khairil Anuar, Khairil Lita Darmayanti Luturkey, Yance Andre M Ridwan Afitra Masroah Tuljannah Mayerni Mayerni Meilano Ashari Akbar Meliana Dewi Monita Olivia Mora Rahmayuanda Muhammad Edisar Nofrizal Nofrizal Nopi Andri Musfa, Nopi Andri Nurul Annisa Okky Rizky Sinaga Phivi Andriza Sartunus, Phivi Andriza Purwoko, Agus Rendy Hidayat Resarizki Utami Resti Ossi P Riki Rahmadhan Shinta Elystia Sri Helianty Sri Rezeki Muria Sukendi Sukendi Syamsu Herman Syamsulduha &#039; Syamsulduha Syamsulduha Syarfi, Syarfi tania, Nindy Tasbieh, Hayatrie Trio Yudha Putra Ulva Seprizal Yasmarli, Yasmarli Yuzelma Yuzelma Zainal Abidin Zuchra Helwani