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Indah Purnamasari
Program Studi Ilmu Kelautan Fakultas Pertanian Universitas Bengkulu, Bengkulu
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Journal : Kinetika

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PALM OIL INDUSTRY WASTE WATER TREATMENT WITH COAGULATION METHOD, FENTON AND ADSORPTION Jauhari, Taufiq; Trisnaliani, Lety; Purnamasari, Indah
KINETIKA Vol 4, No 2 (2013): KINETIKA 01072013
Publisher : Teknik Kimia Politeknik Negeri Sriwijaya

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Abstract

Crude palm oil waste water is waste water that resulted from the palm oil industry. If crude palm oil waste water is released to environment, so it can decrease enviromentset quality  because it contains pollutant organic compound. In this research waste water crude palm oil processed using alum as coagulant with dosage 5000 ppm. This step process was continued by using the concentration fenton Fe2SO47H2O 0.004 M and concentration H2O2 0.32 M. In the final process waste water was treated  by adsorpstion active carbon columb of 30 cm, 40 cm and 50 cm and flow rate 80 mL/minute, 110 mL/minute and 140 mL/minute. In flow rate of  80 mL/minute and height activated carbon columb 50 cm the BOD, COD and TSS reduction increased until 70.10 %, 59.37 % and 85.69 % respectively.
DETERMINATION OF COD, pH AND COLOR INTENSITY ON SONGKET INDUSTRIAL WASTE USING TEA DREGS AS ADSORBENT Purnamasari, Indah; Yerizam, Muhammad; Zubaidah, Nyayu
KINETIKA Vol 4, No 2 (2013): KINETIKA 01072013
Publisher : Teknik Kimia Politeknik Negeri Sriwijaya

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Abstract

The activities of textile industry is often pollute the surrounding environment. It also occurs in industrial of Palembang  Weaving Songket. It influences the acidity and colored of the water. To manage this condition, the colored wastewater using adsorbents that absorbed from tea dregs. This study aimed to determine the effect of tea dregs adsorbent for wastewater quality improvement Songket industry. The Method of treatment of wastewater is used Batch system, which the wastewater is placed in a container by adding the adsorbent from the dregs of tea.  The used of variable is the absorption time for 2 hours, 4 hours, and 6 hours, with the composition of adsorbent mass 5 gr, 10 gr, and 15 gr. Tea dregs that used in this study has the 19.26% of hemicellulose, 39.54% of cellulose and lignin 20%. It takes four hours for the research in order to obtain maximum results, with tea dregs adsorbent composition that produces a pH smaller than the initial waste 6, COD content of 89.41 gr / L, and 3.993 ppm color intensity. Therefore, absorbent from the dregs of tea is very useful for the development of the textile industry, especially for Songket industrials.
STUDI TEKNOLOGI PERENGKAHAN PANAS DAN PENJENUHAN TRIGLISERIDA CRUDE PALM OIL PADA KONDISI BASA DENGAN TWO STAGES ELECTROCHEMICAL THERMAL CRACKING REACTOR Trisnaliani, Lety; Purnamasari, Indah
KINETIKA Vol. 5 No. 1 (2014): KINETIKA 01032014
Publisher : Politeknik Negeri Sriwijaya

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Abstract

The study was experienced using electrolyze by using two stages electrochemical thermal cracking reactor, zeolyte  as catalyst, silver as cathode and cuprum as anode. In this research, we used electrolyte solution for 2 kinds of pH  which  was  pH  10  and  pH  12  of  Potassium  Hydroxide  (KOH)  and  different  voltage  which  was  2,4,6,8,10  and  12  volt.  It  worked  in  1  atmosphere  with  electrolyze  for  1  hour,  heating  till  reaching  temperature  80 oC  for  1  hour, fogging process for 1 hour, and heating without electrolyze nor fogging about 30 minutes. From lubricity analyze,  this product is a fuel with high lubricity. The analyzer showing that cracking of triglyceride of crude palm oil has  same characteristics with diesel.
PENGARUH PENAMBAHAN EKSTRAK BELIMBING WULUH SEBAGAI BAHAN PENGGUMPAL TERHADAP KUALITAS KARET SIR 20 Purnamasari, Indah; Prastanto, Henry
KINETIKA Vol. 5 No. 1 (2014): KINETIKA 01032014
Publisher : Politeknik Negeri Sriwijaya

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Abstract

The level of cleanliness and type of coagulant used were overlooked in processing latex into bokar. By reason of expensive and difficult getting formic acid, farmers generally use chemicals such as alum and TSP fertilizer as a coagulant. Thus, in this study is used Averrhoa bilimbi as an alternative coagulant and see its effect on the quality of rubber SIR 20. Latex coagulated with Averrhoa bilimbi extract water (100%, 75%, 50%, and 25%) and 2% formic acid as comparison, to achieve 4.5 to 4.8 of pH in the plastic tub and time of coagulation recorded. Coagulum (which had coagulated latex) observed in color, odor, and texture changes for 2 weeks. Then, coagulum milled with using a creeper to further tested dry rubber content, ash content, the initial plasticity (Po), plasticity retention index (PRI), levels of substance evaporates, and the levels of impurities. The results showed that the rubber is used higher concentration Averrhoa bilimbi extract produce higher Po and Po optimum achieve in Averrhoa bilimbi 75% extract. The optimum PRI is resulted by the higher Averrhoa bilimbi extract. The higher content of Averrhoa bilimbi extract, the greater of ash content, but the ash content is still under standard rubber SIR 20. The lower impurities levels rubber with Averrhoa bilimbi higher extract and when it compared with formic acid. For volatile substances, Averrhoa bilimbi extract showed almost the same results with formic acid coagulant. From these obtained data, the use of Averrhoa bilimbi extracts as an alternative coagulant should be considered.
The Effect of pH and Adsorption Time in Fe and Mn Concentration Decreasing using Zeolite in Sungai Enim River at Desa Darmo Tanjung Enim Purnamasari, Indah
KINETIKA Vol. 8 No. 3 (2017): KINETIKA 01112017
Publisher : Politeknik Negeri Sriwijaya

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Abstract

Water in the river contains metals contaminant such as Fe and Mn. There’s many method that used to reduce heavy metals ions, such as by using adsorption method. This research utilized zeolite as an adsorbent. This research aimed to study the effect of adsorption parameters on the decrease of heavy metal ions adsorbed in zeolite and determine the equilibrium equation of the isotherm adsorption. Water river and zolite are contacted with certain comparisons in the batch column. The variables studied were pH of solution (1, 3, 5, 7, and 9), and adsorption time (10, 20, 30, 40, 50 min),. The results show that zeolite can be used to reduce the heavy metal content of Fe and Mn. The process is best conducted at 30 minutes, in 40 gram adsorbent weight, and pH 7. The zeolite adsorption model of water in river fits well to Langmuir's adsorption Isotherm model in all condition dengan Qm = 2,5 x 10-3 mg/g.
PROTOTYPE ALAT PENGERING TRAY DRYER DITINJAU DARI PENGARUH TEMPERATUR DAN WAKTU TERHADAP PROSES PENGERINGAN MIE KERING Purnamasari, Indah
KINETIKA Vol. 10 No. 3 (2019): KINETIKA 01112019
Publisher : Politeknik Negeri Sriwijaya

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Abstract

According to the Standard of National Industry No 01-7890-2010, the dried noodle is the noodle that has been produced with drying process till its moisture content is 8-10% left. The unit production system of instant noodle through the drying process is operated with frying process at vacuum condition. This drying process uses amounts of energy and high air temperature. This process is enough strategic to design, research, and innovate subsequently it is able to build the tray dryer instrument. The drying time needed (1-2 hours) is depending on dimension of the unit, the material capacity as the feed dehumidified, and the heat source that come from steam boiler/coil of air heater. The fabrication of this unit is supposed to make instant noodle/dried noodle based on SNI standard. The product obtained will be analyzed to determine the moisture content remained inside dried noodle and also to find out the operational condition of tray dryer unit. The most optimum drying time is 120 minutes at the drying temperature of 70ᵒC with the moisture content remained as much as 9.3% inside dried noodle and it’s filled up the SNI standard namely 8-10% and the process efficiency of this unit is 61.99%.
SIFAT FISIK VULKANISAT KARET DENGAN BAHAN PENGISI VARIASI TANAH LIAT DI BERBAGAI LAPISAN AREA TAMBANG PT. BUKIT ASAM (PERSERO) TBK. Hasan, Abu; Dewi, Erwana; Purnamasari, Indah; Irawan, Dewanda; A.S, Putu Yoga
KINETIKA Vol. 10 No. 1 (2019): KINETIKA 01032019
Publisher : Politeknik Negeri Sriwijaya

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Abstract

This study aims to study the physical characteristics of vulcanized rubber using various clay fillers from layers in the PT. Bukit Asam (Persero) Tbk .. This research was conducted 6 formulas (1,2,3,4,5,6), each variation of clay type INT A2-B1, OBA1, Lower C, INT A1-A2, INT B2-C, INT B1-B2. Then with the same variation carried out the addition of chemicals in the form of JHS-69 and PEG 4000 in each of the 6 formulas as much as 1 phr. The natural rubber used is RSS-1 then rubber is modified and vulcanized along with other process materials in the open mill. Based on the results of the study it has been analyzed that rubber compound number 4 using JH-S69 is better than other rubber compounds, which have a tensile strength value of 17.2 Mpa, elongation at break of 670%, modulus of 300% 4 Mpa, and tear strength 33 kN / m. Whereas the best rubber compound using PEG 4000 is compound number 2 which has a tensile strength value of 16.6 Mpa, elongation at break of 690%, modulus of 300% 2.4 Mpa, and tear strength 28.8 kN / m. From the results of the analysis of the physical properties, the two compounds meet the SNI 0778:2009 standards to be used as shoe soles products.
PEMBUATAN BUBUK KONSENTRAT PROTEIN KELAPA (BLONDO) SEBAGAI SUSU RENDAH LEMAK MENGGUNAKAN ALAT PENGERING BEKU VAKUM Afrizal, Muhammad; HC, Fadarina; Purnamasari, Indah
KINETIKA Vol. 11 No. 2 (2020): KINETIKA 01072020
Publisher : Politeknik Negeri Sriwijaya

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Abstract

Coconut protein concentrate (blondo) can be used as a milk product because it has a high nutrient and mineral content, so it can be used as an affordable alternative to formula milk to treat malnutrition in Indonesia. Coconut protein concentrate (blondo) is packaged in powder form, so that the product lasts longer. Vacuum freeze dryer is suitable for drying coconut protein concentrate (blondo) which is susceptible to high temperatures to avoid denaturation of its protein content. Coconut protein concentrate (blondo) with mass variations of 40 and 50 gr was put into a freeze dryer to be dried with variations in vacuum pressure at 64, 67, 70 and 73 cmHg. The comparison of the quality of each product will be viewed from the moisture, protein and fat content. Based on the results of the analysis obtained, at a vacuum pressure of 73 cmHg with a mass of 50 gr has the best quality results with a moisture content of 4.99%, a protein content of 23.84% and a fat content of 10.90%. Thus, the greater the vacuum pressure, the better the quality of the product.
PENGARUH VARIASI JENIS ABU BOILER DAN KOSENTRASI HCl TERHADAP SIFAT FISIS SILIKA GEL HASIL SINTESIS Meidinariasty, Anerasari; Purnamasari, Indah; Zamhari, Mustain; ., Fadarina; Permadi, Jekasyah; Fadillah, Nadia Zaky; Luthfiah, Sakinah
KINETIKA Vol. 11 No. 3 (2020): KINETIKA 01112020
Publisher : Politeknik Negeri Sriwijaya

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Abstract

Efforts to minimize environmental pollution caused by solid waste in the form of boiler ash are managed and reused into new materials that have economic value. Boiler ash has a high enough silica content which can be used as an alternative raw material for making adsorbents in the form of silica gel. This study aims to synthesize silica gel from variations of boiler ash and determine the effect of HCl concentration on its physical properties. The boiler ash used comes from PT Tanjungenim Lestari Pulp and Paper, PT Pupuk Sriwidjaja and PT Sriwijaya Palm Oil Indonesia. Silica gel synthesis was carried out by extracting boiler ash with 3 M NaOH solution for 1 hour, then the extraction results in the form of Sodium Silicate were precipitated using HCl with various concentrations of 1, 3 and 5 M. The physical properties of the synthesized silica gel were analyzed by analyzing the SiO2 content, water content, and absorption capacity of water vapor. The effect of HCl concentration on the physical properties of the synthesized silica gel showed the highest yield value in SG PP, SG PS, and SG PO respectively amounted to 15.6176%, 21.6115% and 24.5215%.The highest SiO2 content value in a row in SG PP, PS SG and SG PO amounted to 39.48%, 52.73% and 50.74%.
PEMBUATAN SUSU SKIM KELAPA BUBUK MENGGUNAKAN ALAT PENGERING BEKU VAKUM Purnamasari, Indah
KINETIKA Vol. 11 No. 1 (2020): KINETIKA 01032020
Publisher : Politeknik Negeri Sriwijaya

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Abstract

Coconut Skim Milk Water is the main byproduct of coconut milk which is often overlooked. In fact, Coconut Skim Milk Water can be used as an alternative food ingredient that can meet calorie intake in the body with a protein content composition of 35% bk. Utilization of Coconut Skim Milk Water into Powdered Coconut Skim Milk was chosen to increase storage capacity and facilitate product application. One of the alternatives in drying coconut skim milk water is to use a Vacuum Freeze Dryer. This study aims to determine the effect of drying temperature and drying time on yield of powdered coconut skim milk and the effect of drying rate on temperature and drying time. The treatments that were varied in this study were variations in drying temperature (-25 C); (-20 ËšC); (-15 ËšC); (-10 C) and variations in drying time of 12 hours, 13 hours. The results of this study indicate that samples at primary temperature -25 ËšC, drying time 13 hours, vacuum pressure -70 cmHg and secondary temperature 50 ËšC are samples with optimum operating conditions.
Co-Authors - Siswandari ., Fadarina A.S, Putu Yoga Abdurrahman, RM Arif Abu Hasan Adilah, Yunis Aditia Sutrisno, M. Triesnaldi Aditya, Donis Afif Nurul Hidayati, Afif Nurul Afriyanti, Iis Agus Aan Adriansyah Agustina, Indah Fitri Ahmad Jaelani Akhmad Sukri Alfianti, Meilinia Nurul Amelia, Lucky Anerasari Meidinariasty Anita Rahmiwati Annisa Ramadhani Arlina Dewi Astindari Astindari, Astindari Azzahara, Cut Putro Bima Suryantara Budi Prasetyo Cita Rosita Sigit Prakoeswa Damayanti Damayanti DESI NURWIDAWATI Dewi, Novita Puspita Diana, Firmansyah Didiek Hari Nugroho Doddy Adhimursandi Dwi Murtiastutik Effendy, Isaak Efri Roziaty Eka Mulyana, Eka Erwana Dewi Evy Ervianti Fadillah Fadillah Fadillah, Nadia Zaky Fajria, Maulfi Fajrin, Hanif Fatimah Sari, Fatimah Fatmalina Febry Fatmawati, F Fenny Etrawati Fithri, Novia Ramadhani Frisma Handayanna Hafidz, Abdurrahman Handayani, Ayi Hanifa, Fatya Nurul Hardinandar, Fajrin HC, Fadarina Henry Prastanto, Henry Henry Soleman Raubaba, Henry Soleman Hermalina, Julia Indah Suryani Indah Yuliana Indarto - Irawan, Dewanda Issabella, Chentia Miss Issabella, Chentia Misse JAROT BUDIASTO Jusuf Barakbah, Jusuf Kadafi, Abdul Rahman Kanah, Neneng Karnita Afnisari, Karnita Kesi Widjajanti Khaerunnisa Khaerunnisa, Khaerunnisa Khairunnisak Khairunnisak, Khairunnisak Krisnadi, Eka Kharisma Kristiyono Putro, Abraham Abimanyu Kurnia Ningsih Kurniawan, Yoga Kurniawan KUSUMASTUTI, ETTY HARY Legowo, Dinda Mirranty Leily Amalia Lety Trisnaliani Linda Astari, Linda Luthfiah, Sakinah M. Yulianto Listiawan Maharani, Saskia Novtrivia Manggala, Fajar Wira Cakra Marheny Lukitasari Martha Aznury Martodiharjo, Sunarko Maryam Nadir Maylita Sari, Maylita Maysaroh, Efi Mirnawati, Suci Mokh. Iman Firmansyah Muhammad afrizal Muhammad Akbar Muhammad Luthfi Muhammad Rizkan Muhammad Yerizam Murniasih, Elvi Mustain Zamhari Nabila, Rizky Ayu Navelia, Zesika Intan Ni'mah, Irfa Lailatul Noval Noval Novrita, Bibah Nur Hidayah Nuralifah Nuralifah, Nuralifah Nurhasan Hamidi Nursyiam, Maselvi Ardhillah Nyayu Zubaidah Panova, Tatiyana Parawansah Parawansah, Parawansah Pepy D. Endraswari Permadi, Jekasyah Pramadhani, Wulan Putra, Andreyana Pratama Putri, Shania Putri, Shinta Adelina Rachmat, Budi Kurniawan Rahmah Fithriani Rahmaniar Rahmaniar, Rahmaniar Ramadhan, Kahfi Ramadhan, Muhammad Dhia Ramayanti, Cindi Ratna Dewi Kumalasari, Ratna Dewi Razak, Rahmatiilah Reza Rendian Septiawan Rezasatria, Muhammad Rezasatria, Muhammad Rini Mutahar Robert Junaidi Rohama, Rohama Rohman Hakim, Arif Rohmatillah, Abidah RR. Ella Evrita Hestiandari Rusdianasari Rusdianasari Rusliani, Dian Monalisa Saepul Anwar Santoso Setiawan Saputra, Ade Akhmad Saputra, Dedi Dwi Selastia Yuliati SEPTIANA SEPTIANA Septiani, Aldila Serang, Stefania Widyanti Siti Maimunah Siti Ningrum, Uum Sofyan, Fauzi Sri Rusiyati Sri Utami Sudirman Sudirman Sumbung, Frederik H Suwarisman, Achmad Suwarno Suwarno Syah, Ferdiyan Syakdani, Adi Syamswisna , Syasna, Annisa Taufiq Jauhari Tuslaela Tyasningsih, Wiwiek Umar Ali Ahmad Utami, Rizki Sari Utami Wa Ode Sitti Asfiah Udu, Wa Ode Sitti Asfiah Warneri . Wedhiningsih, Nining Wicaksono Putra, Aldhan Wijaya, Rama Wulandari Wulandari Xaverius, Fransiskus xueyun, Zhong Yaqub, Amak M. Yohandri Bow yuda pratama Yunita, Mawarni Yustina Ananti, Yustina Zakiah, Nurrahman Zaman, Muhammad