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All Journal Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Jurnal Serambi Engineering
Edward HS
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Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Engineering Environmental Science

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Pengaruh Variasi Massa Adsorben Terhadap Kapasitas Adsorpsi Ion Logam Cu2+ Menggunakan Limbah Padat Tandan Kosong Sawit Maysha Permata Sari; Elvie Yenie; Edward HS
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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The adsorption process of artificial Cu2+ solutions was investigated using an adsorbent made from Empty Fruit Bunches . This study aims to calculate the adsorption capacity of Cu2+ metal ions by varying the mass of the adsorbent from waste from carbonized Oil Palm Empty Fruit Bunches at 3500C. The mass of the adsorbent used was 2, 4, 6, 8 and 10 grams. The results showed that the best adsorption capacity occurred at a mass of 2 grams, which was 3.882 mg/g. Keywords: Cu2+, TKS, Adsorption, Capacity Adsorption.
Pengaruh Campuran Lempung Dan Eceng Gondok Sebagai Adsorben Untuk Penyisihan Besi (Fe), Mangan (Mn) Dan Warna Pada Air Gambut Putri Elisa S; Aryo Sasmita; Edward HS
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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Clay and water hyacinth are natural resource which is a lot. Water hyacinth in huge amount can disturb the water ecosystem, whereas it can be use as adsorbent to remove polutant, especially metal. Both of them have a good removal efficiency for polutant that requiring another research to know the leverage of interfence of clay and eichornia crossipes against polutant. Research using adsorbtion method by varying the mass ratio of the interference that is 1; 1,5; 2 and 2,5 gr. The result showed that interfence adsorbent with water hyacinth 1 gr and clay 2,5 gr of mass ratio is the best interfence to remove mangan (Mn), organic substance and color in amount of 82,61%, 58,89% and 85,75%, while the additional of 1 gr of water hyacinth can remove 88,98% of iron (Fe). The interfence adsorbent is not effective to remove organic substance and color in peat water because the concentration is still passing the quality standard set by Permenkes Number 492/2010.Keywords : Clay, water hyacinth and adsorbtion
Penentuan Dosis Terbaik Koagulan Aluminium Sulfat Dalam Mengolah Limbah Cair Laboratorium Dengan Proses Koagulasi Dan Flokulasi Ferizal Nuurfath; Shinta Elystia; Edward HS
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 6 (2019): Edisi 2 Juli s/d Desember 2019
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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The wastewater of Fundamental Chemical Laboratory contained very high concentration of TSS and TDS. Therefore, wastewater treatment is needed before discharge to the environment. Coagulation process is able to destablilize the particles in the wastewater to form a floc, formed floc will unite and become a larger floc through the flocculation process so it can settle. This research aim to determine the best dose of aluminium sulfate in reducing concentration of TSS and TDS. Variation of the aluminium sulfate coagulant dose is 1, 2, 3, and 4 gr/L. Based on the result, the best dose in reducing concentration of TSS and TDS was 3 gr/L with removal efficiency of TSS 78,61% and TDS 62,02%.Keywords : Aluminium Sulfate, Coagulation, Flocculation, TSS, TDS, Laboratory Watewater.
Analisis Kadar Abu Terhadap Kualitas Biochar Dari Cangkang Sawit Amalia Syakinah Maharani Budaya; Aryo Sasmita; Edward HS
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 8 (2021): Edisi 1 Januari s/d Juni 2021
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Biochar can affect the microbial population and can act as an adsorbent in the soil. Palm shell potensially as a raw material for making biochar because it contains cellulose, hemicellose, and lignin. The purpose of this research was to compare the biochar characteristics of palm shells according to SNI. Biochar was pyrolyzed at 550oC for 30 minutes and activated using NaOH solution. Biochar from palm shells in this research has qualified for activated carbon based on SNI 06-3730-1995, with a ash content of 5,25%. Key words : Biochar, Palm shell, Ash
Pengaruh Variasi Crude Oil Yang Diolah Terhadap Nilai Konversi Produk Green Cokedi PT Pertamina RU II Dumai Muhammd Ichsan; Syarfi Daud; Edward HS
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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Pertamina Dumai Refinery has carried out Open Access Project which changed the processed crude from initial design by substituting SLC with another "light sweet" crude from outside Riau. The percentage of this replacement reaches 50% of the total crude intake. This study reviews the impact of changes in the composition of processed crude oil on the composition of produced green coke. The research was conducted throughout 2018 with preliminary data gathered since 1996. Green coke samples were taken per month for properties analysis such as moisture content, volatile matters, ash content, sulfur content and fixed carbon, to calculate conversion value of green coke. The conclusion of this research is that the fluctuations in the crude composition were quite significant towards the composition and the conversion value (ton to barrel) of the produced green coke.Keywords: crude oil, conversion, green coke, volatile matter
Pengaruh Massa Adsorben Dan Laju Pengadukan Terhadap Penyisihan FE, Warna Dan PH Air Gambut Secara Adsorpsi Dengan Adsorben Cangkang Buah Karet Sesvi Bonita. B; Edward HS; Syarfi Daud
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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Water sources in peaty areas or swampy areas are generally shallow with brown water, high levels of humic acid, organic matter and iron. Rubber fruit shell is one of the organic wastes that has the potential to be used as an adsorbent because it contains quite a lot of lignin. This study aims to determine the effect of adsorbent mass and stirring rate in the adsorption process using rubber fruit shell adsorbents in peat water treatment. In peat water treatment the independent variables used in this study were the adsorbent mass of 5.5, 6.5 and 7.5 grams in 1000 ml and stirring speed of 90, 100, 110 and 120 rpm. The highest removal efficiency of Fe metal in peat water was 73.91%, with adsorbent mass of 6.5 grams and stirring speed of 90 rpm. The highest color removal efficiency was 64.87%, at a mass of 5.5 grams with a speed of 100 rpm, while for pH obtained a pH of 7.0, at a mass of 5.5 grams with a stirring speed of 90 rpm. The adsorption capacity for Fe metal was achieved at an adsorbent mass of 5.5 grams with a stirring speed of 120 rpm of 0.1732 mg/gr and the adsorption capacity for color was achieved at an adsorbent mass of 5.5 grams with the highest stirring speed of 100 rpm of 103.09 mg/gr. gr. The equation of the selected Fe adsorption isotherm is the Langmuir isotherm with an R2 value of 0.9998. Keywords: rubber fruit shell, Adsorption, Peat Water, Adsorption Capacity
Analisis Kadar Air Terhadap Kualitas Karbon Aktif Dari Cangkang Buah Karet Rudea Faddhisrah Syahbana; Aryo Sasmita; Edward HS
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 8 (2021): Edisi 1 Januari s/d Juni 2021
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Activated carbon is a material containing amorphous carbon which has an internal surface so that it has high adsorption. Activated carbon has the potential to be used as an adsorbent. This study aims to utilize rubber fruit shells as raw material for making activated carbon. Activated carbon was prepared by carbonization process at 500°C for 1 hours using 10% H3PO4 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 moisture content of 7,6%. Keywords: Activated carbon, Activation, Adsorption, Emission gas, Rubber fruit shells
Pengaruh Massa Adsorben Batang Pisang Dan Waktu Kontak Adsorpsi Terhadap Efisiensi Penyisihan Fe Dan Kapasitas Adsorpsi Pada Pengolahan Air Gambut Suziyana Suziyana; Syarfi Daud; Edward HS
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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Air peat surface water that has a dark brown, is acid, levels of iron and manganese is high and has a high organic content. There are negative effects if used directly and continuously without treatment. The aim of this study is to calculate the removal efficiency of metal Fe on the peat water and calculate the adsorption capacity adsorbent of banana stems. Variables used in this study is a variation of the mass of adsorbent 1; 1,5; 2; 2,5 grams and a contact time of 15, 30, 60 and 90 minutes. The maximum removal for Fe metals occur in a mass of 2,5 grams and a contact time of 30 minutes with the adsorption efficiency of 80,31%. The adsorption capacity is 0,027 mg Fe / g on the mass of 1 gram with a contact time of 30 minutes. Type adsorbent banana stem adsorption Fe is Freundlich isotherm assumed coating formed multilayer by R2 of 0,989.Keywords: Adsorption, Peat water, Banana stems adsorbent, Adsorbent mass, Contact time
Pemanfaatan Tanah Lempung Sebagai Koagulan Dalam Penurunan Konsentrasi Zat Organik (KMnO4) Pada Air Gambut Dengan Proses Two-stage Coagulation Aldita Meitri Dewi; Shinta Elystia; Edward HS
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 3, No 2 (2016): Wisuda Oktober Tahun 2016
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Organic matter in peat water can react with chlorine during the chlorinationprocess that cause the formation of trihalomethans (THMs) which can cause acancer because it’s carcinogenic. Organic matter also hard to be removed bytraditional coagulation (one-stage) due to its hydrophobic and hydrophilicfractions that requiring another alternative treatment like two-stage coagulationby using clay as a coagulant. Research using a jar test by varying the mass ofcoagulant that is 1, 2, 3, 4, 5 and 6 gr. In two-stage process, coagulant also splitequally for first and second coagulation with variations 1/3:2/3, 1/2:1/2 and2/3:1/3. The result showed that the highest efficiency for two-stage coagulationcan achieved 94,45% at addition of 5 gr of coagulant with 2/3:1/3 varian ofcoagulant split and already met the standard. Then the characterization offunctional bunch of organic matter doing by FTIR spectra and the result showedthat the functional bunch of hydrophobic like C-O from esthers, ethers andphenols bunch and C-C from aromatic bond also hydrophilic bunch like O-Halcohol can not be detected after two-stage coagulation process.Keywords : Peat water, organic matter, clay and two-stage coagulation
Penyisihan Fosfat Pada Limbah Cair Laundry Dengan Biokoagulan Kitosan Cangkang Udang Windu Evi Royana; Syarfi Daud; Edward Hs
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 7 (2020): Edisi 1 Januari s/d Juni 2020
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Chitosan is a Biocoagulant which is not poisonous, easy to degradable and polielectrolite. This research aims to know the the dose of coagulant and stirring speed in fosfat parameter removal to ward Laundry Liquid Waste and the result of the analyzed compared to PERMENLH/5/2014. This research was using Floculation and Sedimentation - Coagulation by using Chitosan from the Windu Shrimp Eggshell with different dose of coagulant and stirring speed to reduce the concentration of fosfat. The dose of coagulant is 150 mg/l, 175 mg/l, 200 mg/l and 225 mg/l and the stirring speed is 100 rpm, 125 rpm and 150 rpm in 1 minute and 40 rpm slow stirring in 20 minutes. The result showed that the optimum dose of Chitosan Biocoagulant 200 mg/l with the stirring speed 150 rpm with the removal efficiency 91,44%. The analysis results for fosfat have fulfill the laundry wastewater quality standards. Keywords: Chitosan, Fosfat, Flokulasi-Kuagulasi, Laundry Liquid wast.
Co-Authors Abdil Aziz Al Hakim Adi Putra Pratama Adrianto Ahmad Afrilia Geishy Karamy Aldita Meitri Dewi Amalia Syakinah Maharani Budaya Annisah Muslimah Aryo Sasmita Ayu Eka Putri David Andrio Davin Zamora Putra Dita Yusrita Elvi Yenie, Elvi Evi Royana Ferizal Nuurfath Hafidawati, Hafidawati Handika Resvandry Lita Darmayanti Maysha Permata Sari Mila Safitri Muhammad Azmi Muhammd Ichsan Mutia Putri Nurul Rahmatika Putri Putri Elisa S Putri Sarah Nurliana Atmaja Resarizki Utami Ribka Hutapea Rudea Faddhisrah Syahbana Sembiring, Rinawati Sesvi Bonita. B Shinta Elystia Suziyana Suziyana Syarfi Daud Tiara Adinda Virghea Septilda Zalchie