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Browsing by Author "Anita, Sofia"

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AKTIVASI ARANG CANGKANG BUAH NIPAH (Nypa frutican Wurmb) MENGGUNAKAN RADIASI MICROWAVE
(Elfitra, 2022-06) Susilawati, Nurdiah; Anita, Sofia
Nipa palm shell (Nypa frutican Wurmb) is one part of nipa that potentially used as an adsorbent, due to its content 45.6% of cellulose, 23.5% of hemicellulose and 19.4% of lignin. The aim of this research was to determine the optimum condition of irradiation time. The nipa palm shell was prepared through carbonization at 500°C and activated by microwave irradiation at 600 W with various activation times (5, 10 and 15 minutes). Carbon resulted from nipa palm shell was characterized by SNI No. 06-3730-1995 and SEM. Optimum microwave activation time at 10 minutes produce 1.28% of water content, 10.6% of ash content, 1003.3 mg/g of iod adsorption, 7.5686 mg/g of methylene blue adsorption and 28.0624 m2/g of surface area. It can be concluded that microwave activation increase the ability of iod adsorption, methylene blue adsorption and surface area of activated carbon. Based on this work, activated process by microwave succed to improve the ability of adsorbent.
ANALISIS KANDUNGAN AMONIAK, SULFIDA DAN KROM PADA SUNGAI SAIL DAN SUNGAI AIR HITAM PEKANBARU
(2016-05-10) Setiani, Lisa; Hanifah, Tengku Abu; Anita, Sofia
Physicochemical parameters namely Temperature, pH, DHL and DO were analyzed from December 2014 to Februari 2015 in the water of Sail River and Air Hitam River Pekanbaru. Analysis of ammonia, sulfides and chromium in the Sail River and Air Hitam River Pekanbaru was conducted to determinethe quality of river water based on PP No 82 of 2001 class II and Governor Decree 8 of 2001 grade II. Samples were collected by using purposive sampling in rain and hot weather at 4 stations. Ammonia and sulfide were analyzed by UV-Vis spectrophotometer while chromium by Atomic Absorption Spectrophotometer. Concentration of ammonia, sulfide and chromium in Sail River sample in the rainy season was ranged from 3.99 to 5.48 mg/L, 0.44 to 0.95 mg/L and 2.47 to 4.43 ppm; respectively. While in the hot season was ranged from 3.69 to 5.60 mg/L, 0.34 to 0.79 mg/L, and 2.04 to 3.35 ppm; respectively. Concentration of ammonia, sulfide and chromium in Air Hitam River sample in the rainy season was ranged from 4.31 to 6.06 mg/L, 0.30 to 0.80 mg/L and 0.60 to 2.68 ppm; respectively. While in the hot season was ranged from 4.01 to 5.57 mg/L, 0.22 to 0.85 mg/L, and 0.58 to 2.66 ppm; respectively. Our results of sulfides and chromium analysis showed that it was over the threshold value for all stations studied. The concentration of ammonia in 3rd and 4th stations of Sail river and in 2nd, 3rd, and 4th stations of Air Hitam River was also over the threshold
ANALISIS KONSENTRASI HCl DAN WAKTU KONTAL OPTIMAL UNTUKPEMBUATAN ZIOLIT DARI ABU LAYANG DENGAN METODE BATCH
(2014-05-21) Itnawita; Awaluddin, Amir; Syahrul, Jhon; Anita, Sofia; Merlinda
Yogurt is popular dairy milk. It is usually packaged by HPDE or PET plastics because of simplicity. However, it has disadvantage that is migration of monomer such as carbonyl compound (formaldehyde or acetaldehyde) during stored. The mechanism of migration is accelerated by microorganism activities and acid content during stored in refrigerator. Method used in this research was UV-Vis Spectrometry using Schiff’s reagent. The result showed that during stored, the concentration of formaldehyde in samples increased after 20 days of HPDE and 60 days of PET. It was found that the highest concentration of formaldehyde after 70 days stored was 3.250 mg/L of HDPE and 1.488 mg/L. Based on ICPS, UN (ILO, UNEP and WHO), the concentration limit of formaldehyde in food is 1 mg/L. It concluded that yogurt packaged by HDPE and PET is not safe after 70 days stored
ANALISIS KORELASI FORMALIN DAN PROTEIN PADA UDANG KELONG (Penaeus indicus) DAN UDANG PUTIH (Litopenaeus vannamei)
(2017-01-09) Hartin, Alnilla; Anita, Sofia; Hanifah, Tengku Abu
Shrimp is very easy to rot and has high protein. Formaline is commonly used to preservative food including sea food such as shrimp. As protein is splashed or bathed by formaline, the aldehyde from formaldehyde will bond the protein. The purpose of this study is to find out the correlation between formaline and protein in kelong shrimp (Penaeus indicus) and white shrimp (Litopenaeus vannamei) at sell in some Pekanbaru wet market. Qualitative analysis of formaldehyde was done using calium permanganate and chromotrophic acid and quantitative analysis was done using High Performance Liquid Chromatography method which derived using 2,4-dinitrophenylhydrazine, meanwhile protein analysis was done using Kjeldahl method. The formaldehyde content from samples was in range of 10 to 30 mg/Kg for kelong shrimp and 7 to 10 mg/Kg for white shrimp. The protein content for kelong shrimp was in range of 5 to 9 % and 7 to 10 % for white shrimp. Study showed that there are no correlation between formaline and protein in both samples, kelong shrimp and white shrimp.
ANALISIS LOGAM BERAT TIMBAL (II) KADMIUM (II) DAN KROMIUM (VI) PADA KERANG BULU (Anadara Antiquata sp) DI PERAIRAN DUMAI
(2017-01-09) Hardianti, Rina; Anita, Sofia; Hanifah, T. Abu
Shellfish Fur (Anadara antiquata sp) is one type of shellfish which often consumed commonly. These type of shellfish is very well to be used as an indicator of water pollution level, because it has the properties of filetring foods and a sedentary life. This study aims to analyze the concentrations of heavy metals Pb, Cd and Cr in shellfish fur (Anadara antiquata sp) and the seawater in Dumai. The method of this research is purposive. The highest concentration of Pb in shellfish fur (Anadara antiquata sp) at station 3 is 3,5116 mg/Kg, where as the highest concentration in seawater at Station 3 is 0,1214 mg/mL. Based on the research result which obtains for the highest concentration of Cd in shellfish fur (Anadara antiquata sp) at Station 1 and the seawater at Station 1 are 7,5670 mg/Kg and 0,0847 mg/mL, respectively. The highest concentration of heavy metals Cr in shellfish fur (Anadara antiquata sp) at Station 3 and the seawater at station 2 are 1,785 mg/Kg and 0,071 mg/mL, respectively.
ANALISIS RESIDU INSEKTISIDA, FOSFAT DAN KLORIDA PADA TANAMAN CABAI MERAH KERITING (Capsicum annum L.) YANG DITANAM DI DAERAH KUBANG DAN PALAS, PEKANBARU
(2016-05-16) Ajabah, Nurul; Anita, Sofia; Itnawita
Excessive use of chemical insecticides by farmers could lead to the emergence of insecticide residues on plants. Analysis on three samples of red chili in the area Kubang and Palas, Pekanbaru using Gas Chromatography showed positive results for residues of profenofos and λ-cyhalotrin with content ranging between 0.1264 – 4.5110 and 0.3220 – 0.8782 mg/kg, but not detected containing diazinon residues. Water rinse method was able to decrease the concentration of insecticide residues until 8 – 26 % for rinse with cold water and 29 – 43 % for rinse with hot water. This data was supported by the results of the analysis of the phosphate and chloride’s content in rinse water sample, phosphate’s concentration were in the range of 1.6055 – 7.8899 ppm for cold water and 7.8899 – 18.4404 ppm for hot water, while chloride’s concentration were in the range of 0 – 0.1511 and 0.1511 – 0.3777 ppm, respectively for cold water and hot water
ANALISIS RESIDU INSEKTISIDA, FOSFAT DAN KLORIDA PADA TANAMAN SAWI HIJAU (Brassica juncea L.) DI PERKEBUNAN PADANG LAWEH SUMATERA BARAT
(2016-10-12) Sekarlina, Brenda; Itnawita; Anita, Sofia
Insecticide residues with the active compounds of diazinon, chlorpyrifos and profenofos on green mustard from Padang Laweh, West Sumatra were obtained from nine samples. One farmer used diazinon(0.0064 mg/kg) while the other farmer used profenopos(0.3947 mg/kg) which was detected from their samples without any treatment. Washing samples using normal water and hot water was able to decreased pesticide residues level on mustard greens. Diazinon level could be deacrease for 25% while profenopos was not detected after washing. The concentration of phosphate and chloride in washing waterwas ranged from 0.577 to 0.8256 ppm and from 0 to 0.623 ppm for normal water, while in hot water was ranged from 1.467 to 2.477 ppm and from 2.52 to 4.413 ppm respectively.
APLIKASI SERBUK DAUN NANAS (Ananas comosus Morris) TERAKTIVASI NaOH SEBAGAI BIOSORBEN UNTUK MENINGKATKAN KUALITAS AIR GAMBUT
(Elfitra, 2023-11) Natalia, Reanika Febe; Anita, Sofia
This research aims to determine the characteristics of activated pineapple leaf powder and its ability to improve the physical quality of peat water which includes physical parameters such as color, odor, pH, TDS (Total Dissolved Solid) and TSS (Total Suspended Solid) values from peat water. Characterization of the active powder was carried out by testing the water content gravimetrically, testing the adsorption capacity of the active powder on methylene blue and testing the adsorption capacity of the active powder on iodine using the titration method. The results of the characterization of pineapple leaf powder after activation are that the water content is 0.53%, the adsorption capacity for iodine is 230.7869 mg/g and the adsorption capacity for methylene blue is 22.8138 mg/g. FTIR shows the results of hydroxyl O=H, C-H group which is from the cellulose structure, carbonyl C=O which indicates the presence of lignin, as well as the functional groups C=C and C-O on pineapple leaves powder. Based on the results of the SEM-EDS, it was found that the biosorbent pineapple leaves powder had the elements O, C, N, Si, Ca and had an uneven texture. The results obtained after adsorption process with pineapple leaves activated powder showed that pineapple leaf powder ware able to increase the pH in peat water, eliminate odors and reduce the TDS and TSS values in peat water, this is in accordance with Regulations Government of the Republic of Indonesia No. 22 of 2021.
ARANG KULIT SINGKONG (Manihot esculenta Crantz) SEBAGAI ADSORBEN LOGAM TIMBAL(II)
(Elfitra, 2023-11) Ginting, Nabilla Angeli Saputri; Anita, Sofia
Cassava peel (Manihot esculenta Crantz.) has the potential to be used as an adsorbent in the form of carbon used in the adsorption process to remove lead (II) ions because of its cellulose content. This study aims to determine the ability of charcoal of cassava peel in absorbing lead (II) ions. charcoal of cassava peel made by carbonization at 300°C for 120 minutes. The result showed that the with the characterization result were 2.61% of water content, 9.13% of ash content, 428.6188 mg/g of iodine number, 20.4336 mg/g of methylene blue number. Charcoal of cassava peel applied to adsorb lead (II) ion with many variations of dose adsorbent and contact time. Charcoal from cassava peel before and after adsorption of lead (II) ion analyzed by Fourrrier Transform Infra-Red (FTIR) instrument. The concentration of lead (II) ion before and after adsorption analyzed by ICP-Optical Emission Spectrophotometer (ICP-OES) instrument. Based on this study, the optimum dose of charcoal of cassava peel used in absorbing lead (II) ions of 1.5 g with an adsorption efficiency of 97.87% and adsorption capacity of 49.9160 mg/g. The optimum contact time occured at 30 minutes with an adsorption efficiency of 97.13% and adsorption capacity of 49.9160 mg/g. It concluded that arang of cassava peel is potential as an adsorbent of lead (II) ions.
Beban Emisi Gas Buang Kendaraan Bermotor Berdasarkan Jarak Tempuh Dan Jumlah Kendaraan Pada Persimpangan Pasar Pagi Arengka Pekanbaru
(wahyu sari yeni, 2019-01-09) Darimi, Darimi; Siregar, Yusni Ikhwan; Anita, Sofia
Background and Purpose: Air pollution will make the city environment unhealthy and can interfere with human health, therefore air pollution must be strived so as not to increase. One way to reduce air pollution in urban areas is to reduce greenhouse gas emissions and build Green Open Space (RTH). Therefore the purpose of this study is to calculate the exhaust emissions of motor vehicles in the city of Pekanbaru based on the distance traveled and the fuel used. Materials and Methods: Air pollution at a certain level can be a combination of one or more pollutants, either in the form of solids, liquids or incoming gases dispersed into the air and then spread to the surrounding environment. Further analysis in this study is to analyze environmental factors related to community environmental health and research methods is a quantitative method that is trueexperiment, the equation used is the emission load equation of the exhaust gas. Result: Some compounds produced from complete combustion such as non-toxic CO2, have recently become a concern of people. CO2 compounds are actually naturally occurring components in the air. Therefore CO2 previously did not keep the order of air pollution which is more than normal attention due to excessive use of fuel every year, so that in this study shows an increase in CO2 with increasing number of vehicles and mileage. Conclusion: Exhaust emissions are strongly influenced by the distance traveled and the number of vehicles, but there are other factors associated with increased gas emissions, namely congestion, so that technological advances in reducing the rate of increase in exhaust emissions are no longer functioning. Other factors that need to be taken into consideration are the number of vehicles, vehicle age, vehicle maintenance, vehicle speed, type of fuel, amount of fuel, and engine capacity that can affect vehicle exhaust emissions on the intersection of the morning market.
DAMPAK KEBAKARAN LAHAN GAMBUT TERHADAP KANDUNGAN Cu, Mn, Zn TERSEDIA DAN C/N TOTAL PADA PERKEBUNAN KELAPA SAWIT DI DESA PAKNING ASAL KABUPATEN BENGKALIS
(2017-01-09) Sari, Nelva Rona; Anita, Sofia; Hanifah, T. Abu
Over the last 5 years of oil palm plantations in Pakning Asal Bengkalis burned with different frequencies, there are land that are never burned and land burned once. This study is to determine differences among the availability of Cu, Zn, Mn and C/N in the soil burnt with different fire frequencies. Analysis of the availability of Cu and Zn was done with Atomic Absorption Spectrophotometer (AAS), analysis Mn and total carbon using UV-VIS spectrophotometer, while for total nitrogen analysis was performed by Kjehdahl method. The results showed that the content of Cu, Zn, Mn are higher on the ground once burned compared to unburned ground that is 29,333 mg/Kg; 5,812 mg/Kg; 183,867 mg/Kg while the C/N be increased from 17 to 25. The frequency of fires were different in the last 5 years affects the availability of Cu, Zn, Mn and ratio of C/N.
DAMPAK KEBAKARAN LAHAN GAMBUT TERHADAP KANDUNGAN Fe, Al, Mo TOTAL DAN C/N PADA PERKEBUNAN KELAPA SAWIT DI DESA PAKNING ASAL KABUPATEN BENGKALIS
(2017-01-06) Angraini, Ria Winda; Hanifah, T. Abu; Anita, Sofia
Based on survey result, oil palm plantations in the area Pakning Asal Bengkalis regency in the last 5 years (2010 - 2015) were burned by different frequency. There were soil that were never burned and once burned. The purpose of this research were to determined the effect of fire with different frequency at the total content of Fe, Al, Mo and C/N. The total content of aluminium and molybdenum were determined by using Atomic Absorption Spectrophotometer. Iron and carbon total were determined using UV-Vis Spectrophotometer. Total of nitrogen was analyzed using Kjeldahl method. The result showed that the total of Fe, Al, Mo increased at the once burned soil and C/N ratio increased at once burned soil . The total content of Fe, Al, Mo at the once burned soil were 69.20 mg/Kg; 33.83 mg/Kg; 2.16 mg/Kg and the value of C/N ratio increased from 16.51 to 20.59.
DAMPAK KEBAKARAN LAHAN GAMBUT TERHADAP KANDUNGAN KALSIUM, MAGNESIUM, SULFAT TERSEDIA DAN C/N TOTAL PADA PERKEBUNAN KELAPA SAWIT DI DESA PAKNING ASAL KABUPATEN BENGKALIS
(2017-01-06) Muis, Selvina Abdul; Anita, Sofia; Kartika, Ganis Fia
The effect of burnt on structure and component (calsium, magnesium, sulphate and total C/N) in peat swamp soil was investigated in the Pakning Asal of Bengkalis. The analysis were conducted on the burnt and unburnt soil in the last five years. The content of available calsium and magnesium were determined using complexometry titration method, sulphate content was determined by turbidimetry method and the C/N was by visible spectrophotometry method that for carbon, while for total of nitrogen was by titrimetric method. Based on the results, the fires could change the content of available calsium, magnesium, sulphate and total of C/N. The contain of calsium 0,27-0,30% in unburnt soil and increased to 0,34-0,42% in burnt soil. The magnesium content was 0,06-0,08% in burnt soil and increased to 0,11-0,15%. While to sulphate contain was decreased from 0,23-0,24% in unburnt soil to 0,10-0,11% in burnt soil. The C/N also increased from 16,67 on the unburnt soil to 25,31 in burnt soil.
EFEK WAKTU IRADIASI MICROWAVE FLY ASH BOILER DARI CANGKANG KELAPA SAWIT TERHADAP ADSORPSI METILEN BIRU
(2021-03) Apriyana, Khamariah; Anita, Sofia
The aim of this study was to utilize fly ash boiler waste as an adsorbent for the absorption of methylene. Fly ash boiler adsorbent was made by physical activation method using microwave at 100 watts of power with time variations (1; 2; 3; 4 and 5 minutes). The optimum time of microwave irradiation and adsorption efficiency were tested by adsorbing the methylene blue (10, 20 and 30 ppm). Nonactivated and activated fly ash at the optimum time were characterized using SEM. The result indicated that the adsorption efficiency increased in the existence of activation using microwave irradiation and the optimum time of activation was 3 minutes, with a percentage value of 99.94% adsorption efficiency. The activation process could lead to pore unveiling. Thus, it has proved that fly ash activation using microwave irradiation can increase the absorption ability of methylene blue and adsorption efficiency.
EFEK WAKTU IRADIASI MICROWAVE PADA PENYEDIAAN ADSORBEN BERBASIS ABU DASAR BOILER DARI CANGKANG KELAPA SAWIT TERHADAP DAYA JERAP ZAT WARNA METILEN BIRU
(perpustakaan UR, 2021-01) Ikhsan, Aiinsiin Azhima; Anita, Sofia
This study aims to treat and utilize bottom ash by making it an adsorbent. Adsorbent was prepared by using microwave activation method at 100 watts with variation of activation times (1;2;3;4 and 5 minutes). The efficiency of adsorption and the determination of the optimum activation time were tested by adsorbing 50 ppm methylene blue. Bottom ash non-activated and activated by microwave compared and analyzed using SEM. The results showed that the adsorption efficiency increased with the activation process and the optimum activation time was 3 minutes, with a percentage of adsorption is 97.75%. The activation process with microwave also causes additional pores. It can be concluded that boiler bottom ash has a high adsorption efficiency against methylene blue and the activation process with microwave increases the adsorption efficiency.
EFEK WAKTU IRADIASI MICROWAVE PADA PENYEDIAAN ADSORBEN BERBASIS ABU DASAR BOILER DARI CANGKANG KELAPA SAWIT TERHADAP DAYA JERAP ZAT WARNA METILEN BIRU
(2021-01) Ikhsan, Aiinsiin Azhima; Anita, Sofia
This study aims to treat and utilize bottom ash by making it an adsorbent. Adsorbent was prepared by using microwave activation method at 100 watts with variation of activation times (1;2;3;4 and 5 minutes). The efficiency of adsorption and the determination of the optimum activation time were tested by adsorbing 50 ppm methylene blue. Bottom ash non-activated and activated by microwave compared and analyzed using SEM. The results showed that the adsorption efficiency increased with the activation process and the optimum activation time was 3 minutes, with a percentage of adsorption is 97.75%. The activation process with microwave also causes additional pores. It can be concluded that boiler bottom ash has a high adsorption efficiency against methylene blue and the activation process with microwave increases the adsorption efficiency.
EFEK WAKTU IRADIASI MICROWAVE TERHADAP KARAKTERISTIK ARANG PELEPAH DAUN NIPAH (Nypa fruticans) SEBAGAI ADSORBEN
(Elfitra, 2022-02) Putri, Saskia Eka; Anita, Sofia
The aim of this study was to utilize nipa frond into activated carbon which is used as adsorbent. Nipa frond carbon made by carbonization at 400℃ for 1 hour. Nipa frond carbon activated by microwave at 600 W with various activation times (5, 10, and 15 minutes). The characterization results showed the best microwave irradiation time was 5 minutes, with the characterization result were 0.59% of water content; 13.53% of ash content; 592.7599 mg/g of iodine number; and 11.0804 mg/g of methylene blue number. Nipa frond carbon before activation and after activated for the best time by microwave characterized by SEM. The surface of nipa frond carbon before activation still covered with impurities. Then, the activation process by microwave cause damage to the pore structure. It concluded that the microwave irradiation time affects the quality of nipa frond carbon.
EFEKTIVITAS SERBUK BIJI KELOR (Moringa oleifera) DALAM MENURUNKAN KANDUNGAN KESADAHAN TOTAL DAN WARNA PADA AIR SUMUR GALI KECAMATAN RUMBAI PESISIR KOTA PEKANBARU
(2018-03-07) Ambarsari, Lupita; Anita, Sofia
Moringa oleifera is one of the plants that is easy to find and cultivate. This study was conducted to see the effectiveness of moringa seeds in well water treatment as a natural coagulant to replace coagulant from chemicals that have less beneficial effect. This research was conducted on well water samples in Rumbai Pesisir sub-district Pekanbaru in three different urban villages with total hardness and coloredness parameter and some insitu parameter. Moringa seeds reduced the highest total hardness by 47.05% in Limbungan Village, for the color parameter can be reduced by 83.82% in the Lembah Damai Village. The result of some parameters of DHL can be reduced by 18.64% in Lembah Sari, TSS by 30.82%, turbidity by 43.48%, for temperature parameter and pH moringa seed dust did not give significant change. Based on paired t test (P=0.05), moringa seed dust is effective to decrease total hardness, color, DHL, TSS, and turbidity contents. Based on KEPMENKES RI No: 416/MENKES/PER/IX/1990 on the requirements and supervision of clean water quality and PERMENKES RI No: 492/MENKES/PER/IV/2010 regarding drinking water quality, known total hardness, temperature, pH, TSS meet the value requirements of water quality and drinking water but turbidity and color was known to exceeds the value of water quality and drinking water requirements
EFEKTIVITAS SERBUK BIJI KELOR (Moringa oleifera) DALAM MENURUNKAN KANDUNGAN KLORIDA DAN KEKERUHAN PADA AIR SUMUR GALI DI KOTA DUMAI
(2-03-07) Jannah, Raihanil; Anita, Sofia
Moringa oleifera is one of the natural coagulants in Indonesia. This study was conducted to see the effectiveness of moringa seed powder as natural coagulant as an alternative to coagulant chemical that has negative effect. This research was conducted for well water samples in Kelurahan Purnama, Sukajadi and Tanjung Palas in Dumai City. The parameters analyzed were chloride and turbidity as well as some additional parameters. Turbidity was analyzed using a turbidimetry method, while chloride was analyzed using a UV-Vis spectrophotometer. The results indicated that moringa seed powder could decrease turbidity and chloride in three kelurahans turbidity was of 62.06%, 60.51%, and 19.05%; while chloride was of 43.59%, 48.93%, and 50.50%. Based on paired t-test method (P = 0.05), moringa seed powder are effective to decrease chloride and turbidity on wells water in Kelurahan Purnama, Sukajadi and Tanjung Palas in Dumai City. Based on PERMENKES RI No. 492/MENKES/PER/IV/2010 about drinking water quality, chloride concentration was the limit of requirements for drinking water, but not for turbidity.
ELEKTROKOAGULASI LIMBAH CAIR KELAPA SAWIT VARIASI KUAT ARUS, LAMA WAKTU DAN JARAK ELEKTRODA
(perpustakaan UR, 2021-11) Fajri, Muhammad; Anita, Sofia
Electrocoagulation is one method that can be used in the processing of palm oil effluent. The electrocoagulation method is one of the renewable methods in treating waste. Waste treatment by electrocoagulation is more efficient than other methods. This electrocoagulation research uses variations in current strength, electrode distance and electrocoagulation time to reduce the COD value of palm oil effluent. Based on the results of the study, the 2 ampere test sample had a COD value of 332.02 mg/L with a COD reduction of 70.48%. The 0.5 cm electrode distance test sample had a COD value of 281.95 mg/L with a COD reduction of 74.93%. The test sample for 240 minutes of electrocoagulation had a COD value of 116.79 mg/L with a COD reduction of 89.62%. The electrocoagulation process with a constant time of 120 minutes can reduce COD up to 74.93%. The use of electrocoagulation time of 240 minutes can reduce COD up to 89.62%.

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