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All Journal Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Jurnal Rekayasa Sipil dan Lingkungan JURNAL REKAYASA KIMIA & LINGKUNGAN
Edward Hs
Universitas Riau
Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Decision Sciences, Operations Research & Management Energy Engineering Environmental Science Transportation

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Pengaruh Waktu Tinggal Hidrolik Terhadap Alkalinitas, Asam Volatil Dan pH Dalam Pengolahan Sludge Instalasi Pengolahan Air Limbah (IPAL) Pulp Dan Kertas Menggunakan Bioreaktor Hibrid Anaerobik Yasmarli, Yasmarli; Ahmad, Adrianto; HS, Edward
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 3, No 1 (2016): Wisuda Februari Tahun 2016
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Abstract

Pulp and paper industries growth significantly especially in Indonesia that in their operations generate potential waste to contaminate the environment. Type of waste that generated by pulp and paper industries mostly liquid that could be processed in wastewater treatment installation (WWTI). WWTI still generate amount volume of sludge waste, so it need to be in special handling. One of the alternative that can be reduce volume of sludge waste is anaerobic hybrid bioreactor. This technology use suspended and settle microorganism that integrated in bioreactor system. This research aim to determine the influence of hydraulic retention time (HRT) toward alkalinity, volatile acid and pH in processing of sludge waste from pulp and paper wastewater treatment installation using anaerobic hybrid bioreactor. This research start from seeding time that 100 ml/day sludge waste added to 1 Litre of cows’s feces extract for 10 days. Next stage is acclimatisation with throw and put methode and continued with start up where sludge waste flewed in to bioreactor with 5 days HRT. Last stage is variate HRT for 4 days; 3 days and 2 days. Result of this experiment show that average optimum pH operations is 6,6. Alkalinity 2010 mg/L otherwise volatile acid concentration is 43 mg/L. Bioreactor have high stability with value 0,026 in optimum 4 days HRT.Keyword:Alkalinity, Anaerobic, Bioreactor, Hybrid, Hydraulic Retention Time, Paper, pH, Pulp, Volatile Acid, Wastewater
Penyisihan Zat Organik Dan Warna Pada Air Gambut Dengan Koagulan Alami Campuran (Biji Jagung, Biji Kelor Dan Biji Semangka) Rehansyah, M Akhbar; HS, Edward; Elystia, Shinta
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 4, No 2 (2017): Wisuda Oktober Tahun 2017
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Impurities in peat water in the form of high organic concentrations and dark brown to blackish color that cause negative impact on health if consumed in the long term. This condition encourages the emergence of new studies in peat water treatment. One of them by using natural coagulant with coagulation and flocculation process. In this study will utilize moringa seeds, corn kernels and watermelon seeds in comparing the effectiveness of single natural coagulant and natural coagulant mixture by varying the mass and natural coagulant mixture. The results showed that the parameter of organic matter and color was 107,1 mg / l with mass of 0.5 gr and 76 Pt-Co with mass of 0.5 gr for single natural coagulant of Moringa seed powder, and 201,1 mg / l with mass 0.5 gr and 188 Pt-Co with a mass of 2.0 grams for natural coagulant mixture of moringa and corn powder.Keywords: impurities, organic substances, color, moringa seeds, corn kernels, and watermelon seeds
Pengaruh Massa Dan Ukuran Partikel Adsorben Sabut Kelapa Terhadap Efisiensi Penyisihan Fe Pada Air Gambut Istighfarini, Sri Ayu Emy; Daud, Syarfi; Hs, Edward
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 4, No 1 (2017): Wisuda Februari Tahun 2017
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Peat water is surface water are blackish brown and metals Fe which requires effective and efficient processing to be worthy for use by the public. Various types of adsorbents continue to be developed, one of which is the coconut fiber adsorbent. The purpose of this study was to determine metal removal efficiency of Fe in the peat water, calculating the adsorption capacity and determine the appropriate type of isotherm. Fixed variables used in this study is the stirring speed of 150 rpm and a contact time of 60 minutes. For independent variables used consisted of adsorbent mass variation of 0.5, 1, 1.5, 2 g and a particle size variation 100, 140 and 200 mesh. Removal efficiency of Fe metal concentrations higher 84.67% by mass of adsorbent 2 g with a particle size of 200 mesh. Metal adsorption capacity of Fe achieved the highest on the mass of 0.5 grams with a particle size of 200 mesh amounted to 0.09596 mg Fe / g. Types of adsorption isotherms corresponding to Fe by coconut fiber adsorbents is Freundlich isotherm with R2 values of 0.9783 for Fe.Keywords : Adsorption, Adsorbent, Peat Water, Coconut Fiber.
Efektifitas Proses Koagulasi-Flokulasi Dalam Menyisihkan Parameter TSS Dan TDS Pada Limbah Cair Laboratorium Kimia Dasar Audina, Nurul; Elystia, Shinta; HS, Edward
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 6 (2019): Edisi 1 Januari s/d Juni 2019
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Coagulation and flocculation process is used because of it’s ability to remove colloids and suspended particles that contained in laboratory wastewater. The wastewater of Fundamental Chemical Laboratory contained very high concentrations of TSS and TDS, therefore coagulation and flocculation process is needed. This research was conducted to determine the optimum coagulant dose of PAC (Polyaluminium Chloride) in remove TSS and TDS. The determine of optimum coagulant is done by varies doses of PAC within 400, 500, 600, and 700 mg/L. Jar test method resulting the optimum condition of coagulant PAC is in 600 mg/L. Based on the result, the final concentration of TSS and TDS have met the Type II waste water quality standards, but TDS concentrations are still above the Type I waste water quality standards.Keywords: Laboratory Wastewater, Coagulation, Flocculation, Poly AluminiumChloride (PAC), TSS, TDS.
Pengaruh Kecepatan Pengadukan Dan Ukuran Partikel Adsorben Tanah Gambut Dalam Penyisihan Zat Organik, Besi (Fe) Dan pH Pada Air Gambut Fitri, Rizki Febriani; HS, Edward; Daud, Syarfi
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 8 (2021): Edisi 2 Juli s/d Desember 2021
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Riau is a source of water for peaty areas or generally shallow swamp areas with brown water, high levels of humic acid, organic matter and iron. This study aims to determine the effect of stirring speed and particle size of peat soil adsorbent on the efficiency of removing organic substances, metals (Fe) and pH in peat water. The experiment was carried out by adsorption with a contact time of 2 hours by varying the particle size, namely 60, 80 and 100 mesh, stirring speed of 100, 150 and 200 rpm. While the fixed variables are 10% phosphoric acid activator, 300°C temperature and 10 gram mass. The concentration of organic matter removal was 57.2 mg/L with a percentage of 80.92%, metal (Fe) removal of 0.533 mg/L with a percentage of 86.57% at a particle size of 100 mesh and a stirring speed of 200 rpm while the pH was 7 with a particle size of 100 mesh and a stirring speed of 100 rpm. The adsorption capacity of peat water on organic matter was 24,27 mg/gr and iron (Fe) was 0,343 mg/gr at a particle size of 100 mesh and agitation speed of 200 rpm for 2 hours Keywords : Peat Water, Peat Soil, Adsorption, Removal Efficiency, Adsorption Capacity
Analisis Kadar Air Biochar Dengan Bahan Baku Tandan Kosong Kelapa Sawit (TKKS) Nisa, Ulfatun; Sasmita, Aryo; HS, Edward
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 8 (2021): Edisi 1 Januari s/d Juni 2021
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Biochar can increase soil C levels and can increase plant growth by supplying a number of nutrients to improve soil physical and biological properties. The raw material for making biochar is Empty Palm Bunches (EFB). EFB are rich in lignocellulose (cellulose, hemicellulose and lignin). Biochar was made using a pyrolysis device at 400oC for 2 hours and flowed with 100 ml/minute N2 gas. Biochar from EFB in this study has met the requirements for activated carbon based on SNI 06-3730-1995, with a water content of 1,45%. Keywords: Biochar, Empty Palm Bunches (EFB), water content
Pengaruh Penambahan Glutathione (GSH) Terhadap Mikroalga Chlorella sp. Dalam Menyisihkan Logam Ni Limbah Cair Elektroplating Menggunakan Airlift Bioreactor Karamy, Afrilia Geishy; Elystia, Shinta; Hs, Edward
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 7 (2020): Edisi 1 Januari s/d Juni 2020
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An alternative technology for removing Ni metals of electroplating wastewater is biosorption using microalgae Chlorella sp. Chlorella sp. has the ability to respond to the toxic effects of heavy metals by forming phytochelatin. Phytochelatin can be synthesized enzymatically from glutathione (GSH) which response to metal ions. The purpose of this study is to know the effect of the addition of GSH on the process of metal biosorption. The study was conducted with variations in the addition of GSH (0, 5, 10 and 15 mg/L) and variations in contact time (1, 2, 3, and 4 days). Based on the results of the study, The highest removal of Ni metal at 4 days contact time with the addition of GSH 15 mg/L with removal efficiency of 83%. Keyword: Chlorella sp., glutathione (GSH), limbah cair elektroplating, Ni, Phytochelatin
Analisis Kadar Abu Terhadap Kualitas Karbon Aktif Dari Kayu Pohon Karet Situmeang, David Prinata; Sasmita, Aryo; HS, Edward
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 8 (2021): Edisi 1 Januari s/d Juni 2021
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Activated carbon materials with highly developed surface area are widely use dinnumerous fields, such as the separation and purification of liquids and gases in many areas of human and industrial applications, protection from toxic substances, solvent recovery and decolorizing, catalyst support, supercapacitors, electrodes, gas storage processes and biomedical engineering. This study aims to utilize rubberwood as raw material for making activated carbon. Activated carbon was prepared by carbonization process at 500°C for 1 hours using 10% ZnCl2 activator and sieving with a filter size of 200 mesh. The activated carbon product is then tested using proximate analysis. The results of the proximate analysis show that activated carbon has met SNI 06-3730-1995 with a ash content of 8,2%. Keywords: Activation, Activated carbon, Rubberwood
Pengaruh Ukuran Saringan Dan Suhu Pembakaran Terhadap Membran Keramik Untuk Menyisihkan Zat Organik Dan Warna Pada Air Gambut Febriansyah, M.; Darmayanti, Lita; HS, Edward
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 8 (2021): Edisi 2 Juli s/d Desember 2021
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Peat water has a high concentration of organic substances and is brownish red when consumed directly will have a negative impact on health. Ceramic membrane is a technology that can be used to filter and absorb organic matter and color in peat water. Therefore, this article will present a brief review of making ceramic membrane from clay and rice husk for the remove color and organic matter from peat water. Keywords : ceramic membrane, filtration, peat water
Analisis Konsentrasi Debu Jatuh (Dustfall) Di Pemukiman Sekitar Pabrik Pengolahan Crude Palm Oil (CPO) Tridani, Pipi Domita Anggun; Hafidawati, Hafidawati; HS, Edward
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 8 (2021): Edisi 2 Juli s/d Desember 2021
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Crude Palm Oil (CPO) processing plant PT. Z Pelalawan Regency is one of the palm oil processing factories that uses palm kernel shells and fiber as an energy source. Palm oil processing is certainly inseparable from the problem of air pollution, especially in the environment, namely pollutant gases and dust. This study aims to analyze the concentration of dustfall based on the measurement distance from the pollutant source. Sampling of dustfall using a Dustfall Collector based on SNI 13-4703-1998. Variation of dust sampling distance falls 0 m, 300 m, 1230 m from the pollutant source. The results showed that the highest concentration of dustfall was at a distance of 0 m from the pollutant source with an average value of 24.46 g/m2/month and the lowest at a distance of 1230 m with an average value of 5.13 g/m2/month.Keywords: Shell, Fiber, Distance, Concentration of Dustfall, Palm Oil Mill
Co-Authors Adrianto Ahmad Aryo Sasmita Audina, Nurul Edy Saputra Elvi Yenie, Elvi Febriansyah, M. Fitri, Rizki Febriani Hafidawati, Hafidawati Istighfarini, Sri Ayu Emy Karamy, Afrilia Geishy Lita Darmayanti Mutia Putri Rehansyah, M Akhbar Saiful Bahri Shinta Elystia Situmeang, David Prinata Solly Aryza Syarfi Daud Tridani, Pipi Domita Anggun Ulfatun Nisa, Ulfatun Yasmarli, Yasmarli