DSpace Repository :: Browsing by Author "Hanifah, T. Abu"

Browsing by Author "Hanifah, T. Abu"

Now showing 1 - 20 of 28

Analisis Kandungan Natrium Dan Kadmium Serta Tingkat Kematangan Tanah Gambut Bekas Terbakar Berulang
(wahyu sari yeni, 2019-01-09) Hanifah, T. Abu
The land fires caused changes in the structure and composition of the soil is like nutrient that effected growth of the plant around it. To know how far the effect of land fire with different frequency, the research about the content of macronutrients such as Sodium (Na), heavy metal cadmium (Cd) and maturity level of peat in area Pakning Asal, Bengkalis Regency needs to be done. The content of cadmium and sodium were determined by using Atomic Absorption Spectrophotometer and Flame Photometer, and analysis of maturity level of peat was determined by Sieve method. The results showed that the Na content was available and total in the unburnt and once burned soil increased and decreased on the soil several times burned from 26,716; 34,116; 25,162 mg/Kg for available and 49,384; 78,578; 29.763 mg/Kg for total. Cd content was available and total on unburnt and once burned soil decreases and increases in soil several times burns was 9,454; 8,666; 9,403 mg/Kg to be available and 9,625; 9,602; 9,962 mg/Kg for total. The maturity level of peat it has a fiber count of >75%.
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.
APLIKASI ARANG CANGKANG KELAPA SAWIT (Elaeis guineensis Jacq) TERAKTIVASI NaOH SEBAGAI ADSORBEN ION MERKURI DALAM AIR SUNGAI BATANG KUANTAN RIAU
(Elfitra, 2022-09) Susanti, Silvy Maharani; Hanifah, T. Abu
Oil palm shells can be used as adsorbents because they have chemical compositions such as cellulose, hemicellulose and lignin which are able to adsorb adsorbate. This study aims to test the ability of activated carbon from oil palm shells to adsorption of mercury ions in Batang Kuantan river water. Palm shell activated carbon is made through a carbonization process at 600oC for 1 hour, then activated using NaOH with a ratio of 1:0, 1:1, 1:2, 1:3 and 1:4 (w/w) to carbon and NaOH. Palm shell carbon with the best quality is found in a 1:4 ratio. The effect of the contact time adsorbent with the simulation solution was carried out with time variations (10 minutes, 20 minutes, 30 minutes, 40 minutes, 50 minutes and 60 minutes). The mercury ion concentration of the Batang Kuantan river water in the upstream, middle, and downstream parts was 0.635 μg/L, 1.410 μg/L and 1.937 μg/L, respectively. Activated palm shell carbon with activated NaOH 1:4 was contacted with Batang Kuantan river water for 50 minutes (time optimum), the mercury ion concentration measured in Batang Kuantan river water was 0.200 μg/L (upstream), 0.441 μg/L (middle) and 0.602 μg/L (downstream). The mercury ion adsorption efficiency at each sampling point of river water was 68.50%, 68.72% and 68.92%. From the research data, it can be concluded that the activated carbon of oil palm shells is able to adsorbtion mercury ions in the water of the Batang Kuantan River.
APLIKASI ARANG PELEPAH KELAPA SAWIT (Elaeis guieneesis Jacq) TERAKTIVASI NAOH SEBAGAI ADSORBEN ION MERKURI DALAM AIR SUNGAI BATANG KUANTAN RIAU
(Elfitra, 2022-07) Perangin-angin, Fitri Handayani Br.; Hanifah, T. Abu
The purpose of this study was to test the ability of activated carbon from oil palm fronds to adsorb mercury ions in Batang Kuantan River. Oil palm fronds were carbonized by furnace at a temperature of 500oC for 1 hour and activated using NaOH in a ratio of 1:0, 1:1, 1:2, 1:3 and 1:4 (w/w). Carbon from oil palm frond activated by NaOH 1:4 showed the best characterization results. The concentration of mercury ion in Batang Kuantan River in the upstream, middle and downstream parts were 0.635 μg/L, 1.410 μg/L and 1.937 μg/L, respectively. NaOH 1:4 activated oil palm fronds carbon was contacted with river water for 40 minutes, the mercury ion concentration measured in Batang Kuantan River water was 0.173 μg/L (upstream), 0.382 μg/L (middle) and 0.527 μg/L (downstream). The mercury ion adsorption efficiency at each uptake point was 72.76%, 72.81% and 72.94%. Based on the data obtained, the activated carbon from the oil palm fronds was potentially used as mercury ions adsorbent in the water of the Batang Kuantan River.
ARANG AKTIF BUAH JABON PUTIH (Anthocephalus cadamba Miq.) UNTUK PENJERAPAN ION KROMIUM(VI)
(Elfitra, 2022-12) Nainggolan, Anastasia Kinzky Zipora; Hanifah, T. Abu
The aim of this study was to determine the efficiency and adsorption capacity of activated carbon of white jabon fruit in adsorbing chromium(VI) ions, determine the kinetic model and adsorption isotherm and the percent regeneration of activated carbon of white jabon fruit. The making of white jabon fruit carbon is carried out by carbonization process at 300℃ for 30 minutes. Jabon fruit carbon was activated with NaOH solution with a ratio of carbon and activator 1:3 (w/w). Characterization of activated carbon refers to SNI 06-3730-1995. Functional groups of activated carbon were analyzed using FTIR, activated carbon morphology and elemental composition of activated carbon were analyzed using SEM-EDS. Surface area, pore volume and pore radius were analyzed using BET method and metal ion concentrations were analyzed using ICP. The yield of carbon obtained was 66.55%. The results of characterization of activated carbon obtained a moisture content of 1.86%, ash content of 1.29%, adsorption capacity of iodine 1149.92 mg/g and adsorption capacity of methylene blue 24.9824 mg/g. The FTIR results showed that the functional groups of activated carbon in white jabon fruit were N-H, aliphatic C-H, aromatic C-H, C=O, C-O-C and O-Cr. The best adsorption conditions were obtained at pH 2, contact time 30 minutes and adsorbate concentration of 40 mg/L with an efficiency of 87.19% and an adsorption capacity of 1.6651 mg/g. The percentage of regeneration reached 98.53%. The pHpzc obtained was 6.8. pH
ARANG BUAH JABON PUTIH (Anthocephalus cadamba Miq.) UNTUK PENJERAPAN ION TIMBAL(II)
(Elfitra, 2022-12) Salsabila, Mufidah; Hanifah, T. Abu
This study aims to analyze the adsorption ability of white jabon fruit (Anthocephalus cadamba Miq.) on lead ions and the regeneration ability of white jabon fruit carbon and determine the isotherm model and adsorption kinetics. White jabon fruit carbon is made by carbonization at 300˚C for 30 minutes. The carbon will reach equilibrium so it is regenerated with 1 M HCl to restore the adsorption ability of the carbon. The yield of carbon was 65.5262%. The surface area of the carbon is 90.4858 m2/g. Carbon characterization results based on SNI No. 06-3730-1995 obtained a water content of 2.23%; ash content 4.30%; adsorption capacity of iodine 1007.1256 mg/g and adsorption capacity of methylene blue 24.4077 mg/g. Optimum conditions were obtained at pH 6, contact time 40 minutes and adsorbate concentration of 40 mg/L with adsorption efficiency of 99.41% and adsorption capacity of 1.6300 mg/g. The percentage of regeneration reached 89.71%. The pH of pzc obtained in this study was at a pH of around 5 which indicates that charcoal is negatively charged at an optimum pH of 6.. The FTIR results showed the functional groups N-H, C-H aliphatic, C-H aromatic, C=O, C-O-C and O-Pb. The SEM-EDS results showed differences in the surface of the carbon before adsorption, after adsorption and after regeneration with the contents of the carbon elements C, N, O, Na, Cl, K and Pb. The BET results showed that the largest surface area was obtained by carbon before adsorption, namely 0.2885 m2/g. The adsorption isotherm model follows the Langmuir isotherm with the equation y = 0.0665x + 0.1582 and the determination value R2 = 0.9061 which indicates that the adsorption on the surface is homogeneous and has a single layer or monolayer. The adsorption kinetics follows a pseudo-second order with the equation y = 0.2321x – 0.0634 and R2 = 0.9998 which indicates chemisorption.
ARANG KULIT KAYU AKASIA (Acacia crassicarpa sp.) UNTUK PENJERAPAN ION TIMBAL(II)
(Elfitra, 2023-11) Novardi, Marshella; Hanifah, T. Abu
Acacia bark (Acacia crassicarpa sp) contains cellulose, lignin and tannin which have the potential to be used as adsorbents in the form of charcoal. Acacia bark charcoal is used as an adsorbent in the adsorption of lead(II) ions. This research aims to determine the highest adsorption capacity and efficiency of acacia bark charcoal in adsorbing lead(II) ions with optimization conditions for pH, contact time and adsorbate concentration. Acacia bark charcoal is made through a carbonization process at 800ºC for 90 minutes. Acacia bark charcoal was characterized by referring to SNI 06-3730-1995 to determine water content, ash content, iodine adsorption capacity and methylene blue adsorption capacity. Characterization of charcoal functional groups before and after adsorption was analyzed using FTIR, surface morphology and elemental composition of charcoal before adsorption were analyzed using SEM-EDS. The concentration of the lead(II) ion solution before and after adsorption was analyzed using AAS. The adsorption process in this research uses a batch system. The yield of acacia bark charcoal was 27.2313%. The results of the characterization of SNI 06-3730-1995 for charcoal showed that the water content was 5.79%, the ash content was 4.83%, the iodine adsorption capacity was 899.1044 mg/g and the methylene blue adsorption capacity was 25.0078 mg/g. The optimum adsorption conditions were obtained at pH 6, contact time of 50 minutes and adsorbate concentration of 40 mg/L with adsorption efficiency reaching 99.67% and adsorption capacity of 1.6605 mg/g. FTIR results show that the functional groups contained in acacia bark charcoal before and after adsorption are almost the same, but there is one functional group that is only found in charcoal after adsorption, namely O-Pb. SEM-EDS results show that charcoal before adsorption has more pores and a rough surface with the elements contained consisting of C, O and K.
BEBAN PENCEMARAN LOGAM BERAT Cd DAN ION NITRAT DARI LIMBAH TAMBANG EMAS TERHADAP AIR SUNGAI SINGINGI KABUPATEN KUANTAN SINGINGI PROVINSI RIAU
(2014-03-27) Handoko; Bali, Subardi; Hanifah, T. Abu
Discovery of natural resources such as gold in Kuantan Singingi Riau province increased the gold mining in the watershed singingi which break the balance of ecosystem. Accumulation of Cd causes kidney disfunction and cause injury on nose duct. A high concentration of nitrate ion causes an uncontrolled growth of algae and other plants which decreased the concentration of oxygen dissolved in water. In this study, the contribution of heavy metal Cd and nitrate to Singingi river’s water was analyzed. The concentration of Cd was determined by Atomic Absorption spectrophotometry, while nitrate ion was determined by the brucine sulfate method and analyzed by visible spectrophotometer. Water samples were taken at 10 stations along the river singingi. The results showed that the Cd content was not detected, while the highest nitrate content was found in the 10th station, i.e. 1.582 ppm
BIOSORBEN ARANG AKTIF KULIT KAYU JABON PUTIH (Anthocephalus cadamba Miq.) UNTUK PENJERAPAN ION LOGAM TIMBAL(II)
(Elfitra, 2023-11) Salma, Sherly Febrisa; Hanifah, T. Abu
White jabon bark (Anthocephalus cadamba Miq.) has a high chemical content of cellulose and lignin so it has the potential to be used as an adsorbent to adsorb lead(II) metal ions. This research aims to determine the efficiency and adsorption capacity of white Jabon bark activated charcoal in adsorbing lead(II) metal ions, determine the kinetic model and adsorption isotherm. White jabon bark charcoal is made using a carbonization process at a temperature of 800℃ for 90 minutes and activated with a NaOH solution with varying ratios of charcoal and activator 1:1 ;1:2 ;1:3; 1:4 and 1:5 (w/ b). Characterization of activated charcoal refers to SNI 06-3730-1995. The functional groups of activated charcoal were analyzed using FTIR, the morphology of activated charcoal and the elemental composition of activated charcoal were analyzed using SEM-EDS. The concentration of lead(II) metal ions was analyzed using AAS. The charcoal yield obtained was 15.7247%. The results of the activated charcoal characterization showed that the water content was 1.23%, the ash content was 4.29%, the iodine adsorption capacity was 647,5453 mg/g and the methylene blue adsorption capacity was 24.3776 mg/g with a surface area of 90.3853 m2g. FTIR results show that the functional groups of white jabon bark activated charcoal are aromatic C=C, C=C stretching, C-H stretching aliphatic, C≡C, N-H and O-Pb. The best adsorption conditions were obtained at pH 6, contact time 40 minutes and adsorbate concentration 140 mg/L with an efficiency of 99.872% and an adsorption capacity of 6.623 mg/g. Based on the SEM-EDS test results, it is known that activated charcoal contains the elements C, O, Ca and P.
BIOSORBEN ARANG KULIT KAYU JABON PUTIH (Anthocephalus cadamba Miq.) UNTUK ADSORPSI ION LOGAM TIMBAL(II)
(Elfitra, 2023-11) Sari, Yupita Yeni Puspita; Hanifah, T. Abu
This research aims to determine the efficiency and adsorption capacity of adsorbents in adsorbing metal ions lead(II) at optimum pH optimization, optimum contact time, and concentration optimum adsorbate. White jabon bark in this study was converted into charcoal through a carbonization process with variations of temperature (400℃, 500℃, 600℃, 700℃, 800℃) and time variations of carbonization (30, 60, 90, 120 minute) for obtain the best condition of white Jabon bark charcoal which is used as lead(II) heavy metal adsorbent. Characterization of Jabon bark charcoal adsorbent white is carried out using an FTIR instrument, to analyze clusters functions that play a role in the adsorption process. Use of SEM-EDS for analyzing surface morphology and determining the elements contained therein white jabon bark powder and charcoal. The adsorbent characterization results show water content value 1.75%, ash content 13.72%, iodine adsorption capacity 519.12 mg/g and methylene blue adsorbed 64.7828 mg/g with a surface area of 240.1964 m2 /g. Adsorption The optimum occurs at a pH variation of 6, contact time of 40 minutes and initial concentration metals at 140 mgL-1 with adsorption efficiency of 99.89% respectively; 99.88%; 99.85%. FTIR results show that there is a CH bending functional group, C=C aromatic, C-N, C-H stretching aliphatic, C≡C, C=O carbonyl, and N-H groups. Results SEM-EDS shows the presence of the elements O, C, Ca, K, Mg and has a texture porous which is still covered with impurities because the activation process has not been carried out.
BIOSORBEN BUAH JABON PUTIH (Anthocephalus cadamba Miq.) UNTUK PENJERAPAN ION LOGAM MERKURI(II)
(Elfitra, 2022-12) Milenia, Faradilla; Hanifah, T. Abu
This study aims to determine the efficiency and biosorption capacity of biosorbents in adsorbing mercury(II), determine the kinetics model and biosorption isotherms and the ability to regenerate biosorbent in white jabon fruit. Optimization of the biosorbent powder was carried out on the parameters of pH, contact time and adsorbate concentration. The biosorbent is then regenerated by desorption using HCl solution. The results of the physical and chemical characterization in this study showed a moisture content of 8.09%, ash content of 1.32%, adsorption capacity of iodine 753.5812 mg/g and adsorption capacity of methylene blue 24.8632 mg/g with a surface area of 92.1764 m2/g. Results The pHpzc value for the Jabon fruit biosorbent powder was 5.5 which indicated that the biosorbent powder had a negative charge. The results of the biosorption test showed that the optimum condition of the biosorbent powder was at a variation of pH 6, contact time and at an initial concentration of 80 mg/L with a biosorption efficiency of 99.91% and a biosorption capacity of 3.5761 mg/g. Based on the FTIR results of aliphatic C-H functional groups, aromatic C-H, C=O, C-O-C, O-Hg and N-H. Based on the results of the BET analysis, the biosorbent powder had a surface area before biosorption of 3.53039 m2/g, after biosorption of 0 m2/g and after resorption of 0.17056 m2/g. Based on the results of the SEM-EDS, it was found that the jabon fruit biosorbent powder had the elements O, C, Na, N, Cl, K, Hg and had an uneven texture and the distance between the particles looked very tight and had a small grain size. The surface texture looks very smooth. In this study, the percentage of regeneration was 98.34%. Biosorption kinetics follows the second-order pseudo-equation where the equation is y = 0.2097x – 0.0075 with R2 = 1 and K = 5.86339 gmg-1min-1, assuming a chemical adsorption process that includes inter-valence forces or electron exchange between the adsorbent and the adsorbate and the biosorption isotherm model follows the Langmuir equation with the equation y = 0.019x + 0.0153 with R2 = 0.9665, it is assumed that the active site on the surface of the adsorbent is homogeneous.
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 KALSIUM, MAGNESIUM, SULFAT TOTAL DAN C/N PADA PERKEBUNAN KELAPA SAWIT DI DESA PAKNING ASAL KABUPATEN BENGKALIS
(2017-01-06) Natalia, Yessi; Itnawita; Hanifah, T. Abu
The different frequencies of fires on palm soil in the Pakning Asal of Bengkalis could change structures and component of nutrients inside of the soil as total of calcium, magnesium, sulphate and C/N. The analys were conducted on the soil with once on fire, several times burned and no burn in the last five years. The total content of calcium and magnesium was determined by using complexometry titration method, a total of sulphate was determined by turbidimetry method and the C/N was determined by visible spectrophotometry method that for carbon, while for total of nitrogen was determined using the method Kjeldahl. Based on the results in this research, the fires could change the content of calcium and magnesium in total from the soil without fire to several times burned, are increased from 0,217 – 0,371% and 0,095 – 0,137%. The total sulphate in the soil wihout fire 0,481% increased to 0,509% on the soil with once burned and decreased to 0,118% on the soil often burned. The C/N also increased from 16,580 – 25,393 with increasing frequency of fires.
DAMPAK KEBAKARAN LAHAN GAMBUT TERHADAPKANDUNGAN Fe, Mo, Al TERSEDIA DAN C/N TOTAL PADA PERKEBUNAN KELAPA SAWIT DI DESA PAKNING ASAL KABUPATEN BENGKALIS
(2017-01-09) Afdanila; Hanifah, T. Abu; Itnawita
Land fire will be impact to the physical and chemical characteristics of soil that caused of decomposition proces. The differentland fire frequency will be affect to different in the soil composition. Toknow how far that the composition is different so it need to do research about the contains of micro element such as Fe, Mo, Al available and ratio C/N in area Pakning Asal, Bengkalis Regency. The contains of Fe and C-organic was determinedusing Spectrophotometer UV-VIS, the contains of Mo and Al was determined using Atomic Absorbtion Spectrophotometer and the contain of N was determined by Kjeldahl method. Analysis result showed that contains of Fe, Mo, Al and ratio C/N inunburnt soil, once burned soil and several times burned (2 – 3times in last 5 years) there were 14,1566 mg/Kg, 15,3151 mg/Kg dan 5,7677 for Fe, 0,0548 mg/Kg, 0,1345 mg/Kg and 0,0830 mg/Kg for Mo, 4,4008 mg/Kg, 4,0624 mg/Kg dn 0,8594 mg/Kg for Al and was increased 16,6855, 20,6787 dan 25,5206 for ratio C/N.
DAYA SERAP SABUT KELAPA (Cocos nucifera) UNTUK REMEDIASI TEMBAGA, KOBAL, SIANIDA DAN KESADAHAN PADA AIR LINDI TPA MUARA FAJAR PEKANBARU
(2013-03-07) Siswita, Liza; Abdullah, Chainulfiffah; Hanifah, T. Abu
The FWD (TPA) Muara Fajar is the final waste disposal for the city of Pekanbaru. It contains varied chemical elements that may raise environment pollution. It can be happened because the decomposed waste produces leachate. Leachate contents organic and inorganic compounds. The inorganic compounds that can be found in the leachate are like copper, cobalt, cyanide ions and total hardness. This study was conducted in order to know adsorption capacity of coconut fiber and coconut fiber charcoal to remove copper, cobalt, cyanide ions and total hardness from leachate of FWD Muara Fajar. Leachate sampling is done at the lechate inlet. The result showed that adsorption capacity of the coconut fiber for copper, cobalt, cyanide ions and total hardness are 0,12 mg/g, 0,011 mg/g, 0,2 mg/g and 272 mg/g, respectively. Whereas the adsorption capacity of coconut fiber charcoal for copper, cobalt, cyanide ions and total hardness are 0,123 mg/g, 0,0114 mg/g, 0,483 mg/g and 300,96 mg/g, respectively. The data was analized using statistical method (paired t test). The coconut fiber and coconut fiber charcoal show significant difference for removing copper and total hardness. The coconut fiber has significant different for removing cobalt whereas coconut fiber charcoal does not have significant difference for removing cobalt. Both of coconut fiber and coconut fiber charcoal for removing cyanide ions from leachate TPA Muara Fajar is not significantly different
EFEKTIFITAS KOAGULAN POLI ALUMINIUM KLORIDA DAN ALUMINIUM SULFAT UNTUK MEMPERBAIKI KUALITAS AIR SUMUR GAMBUT DI DESA RIMBO PANJANG KECAMATAN TAMBANG KABUPATEN KAMPAR
(2016-10-19) Oktasari, Elisa; Itnawita; Hanifah, T. Abu
Poly aluminium chloride and aluminium sulfat has been used as a coagulant to improve quality of water wells peat in Rimbo Panjang. The process of coagulation-floculation was performed using a jartest by measuring the turbidity with concentrations of 25, 50, 100, 150 and 200 ppm. Our finding showed that the coagulants could reduce turbidity by the increasing of concentrations. The optimum decreasing of turbidity was accured at 150 ppm (87,97% - 98,39%). Both coagulants were able to reduce turbidity as required by PERMENKES 416 / Menkes / PER / IV / 1990 “About Water Quality Requirements
EFEKTIFITAS SERBUK BIJI KELOR (Moringa oleifera) SEBAGAI KOAGULAN DALAM MENURUNKAN KANDUNGAN FLUORIDA DAN KEKERUHAN PADA AIR SUMUR GALI DI KOTA DUMAI
(2018-03-07) Hasanah, Ita Uswatun; Hanifah, T. Abu
Moringa seeds can be utilized as coagulants because they contain active substances of 4α-4r-rhamnosyloxy-benzyl-isothiocyanate. The purpose of this study was to determine the effectiveness of Moringa oleifera seed as coagulant in reducing fluoride content and turbidity in well water. The fluoride and turbidity was monitored by UV-Vis spectrophotometry and turbidimetry, respectively. The result showed that moringa oleifera seed, is able to reduce fluoride content and turbidity. Fluoride content in Purnama village, Sukajadi village and Tanjung Palas village percentage decrease of fluoride content equal to 49.10%, 24.97% and 28.94. Turbidity value in Purnama village, Sukajadi village and Tanjung Palas village percentage of turbidity degradation value equal to 62.06%, 60.51% and 19.05%. Based on PERMENKES RI NO. 416 of 1990 on the terms of supervision of clean water threshold value for fluoride 1.5 mg/L, while from the results of this study obtained by 0.0082, 0.1908 and 0.1591 mg/L. For the turbidity value of 25 NTU, while from the results of this study amounted to 23.8, 10.16 and 41.93 NTU. It can be conclude that moringa oleifera seed effective in lowering fluoride content and turbidity in dug well water.
Kandungan Timbal Dan Amonium Pada Tanah Gambut Fibrik Terbakar Berulang
(2018-03-12) Hanifah, T. Abu; Alfianur, Alfianur; Rexy, Mutya
Peat is an organic material which derives from plants decays remants that get buried naturally over a very long time period at depths greater than 50 cm. this research undertakes an analysis of heavy metal content, that is lead and alkali metals is ammonium ions at oil palm plantations in Pakning Asal Village, Bengkalis district, Riau with different fire occurrence frequencies, as follows: on unburnt land, on once burned land, and on land burned several times (at least 2 – 3 times). The analysis of heavy metals was carried out by using an Atmonic Absorption Spectrophotometer (AAS) while that of ammonium ions using a UV-Vis Spectrophotometer. The content of lead metal decreased in an inversely proportional ratio to the fire occurrence frequency as follow: from 47,8914 mg/Kg to 46,7016 mg/Kg in unburned soil, from 37,1366 mg/Kg to 22,5753 mg/Kg on once burned soil, and finally from 29,6936 mg/Kg to 23,3249 mg/Kg on soil burned several times (at least 2 – 3 times). The content of available ammonium ions on unburned soil resulted to be of 16,5023 mg/Kg, of 21,0386 mg/Kg on once burned soil, and finally of 18,5005 mg/Kg on soil burned several times (at least 2 – 3 times). Based on the level of maturity, this peatland is fibric (still raw), with a fiber percentage greater than >75%.
KARAKTERISASI DAN PENENTUAN WAKTU KONTAK OPTIMUM ARANG AKTIF BUAH JABON PUTIH (Anthocephalus cadamba) DALAM ADSORPSI ION MERKURI (II)
(2021-03) Frantika, Glori Yolanda; Hanifah, T. Abu
White Jabon fruit (Anthocaphalus cadamba) can be used as an adsorbent in the form of activated charcoal because it has chemical content in the form of cellulose and protein. This research aims to determined the adsorption ability of white jabon fruit towards mercury (II) ions. The adsorbent was made by carbonization at 300 ºC for 30 minutes and activated using NaOH, then charcoal was characterized according to SNI 06-3730-1995, FTIR and ICP-MS. White Jabon fruit charcoal was applied to absorb mercury (II) ions and analyzed the effect of variation in contact time (10; 20; 30; 40; 50 and 60 minutes) on adsorption capacity of charcoal. The characterization result of the activated charcoal of white jabon fruit in this research indicate that was contained water 1,298%, the ash content 2,595%, the iodine adsorption power was 829.494 mg g-1 and the adsorption power of methylene blue was 26,741 mg g-1. The best adsorption ability of mercury (II) ions is activated charcoal from white Jabon fruit which is activated by NaOH and the optimum contact time is 40 minutes with an absorption efficiency of 99.936%.
PENGARUH KECEPATAN PENGADUKAN TERHADAP DAYA ADSORPSI ARANG AKTIF BUAH JABON PUTIH (Anthocephalus cadamba Miq.) SEBAGAI ADSORBEN ION MERKURI (II)
(Elfitra, 2022-06) Pane, Romauli S.; Hanifah, T. Abu
The aim of this study was to analyze the adsorption ability and optimum stirring speed of non-activated white jabon fruit carbon and activated carbon on the absorption of mercury (II) ions. White jabon carbon is made through a carbonization process at a temperature of 300ºC for 30 minutes, then activated with NaOH and characterization of activated carbon is also carried out according to SNI 06-3730-1995. The optimization of stirring speed was carried out by varying the stirring speed of 60, 80, 100 and 120 rpm. The results of the characterization of activated carbon of white jabon fruit in this study showed a moisture content of 1.98%, ash content of 3.11%, iodine adsorption capacity of 1160.5285 mg/g and methylene blue adsorption capacity of 25.1024 mg/g. The results of the adsorption test on activated carbon of white jabon fruit showed that the optimum stirring speed condition was 80 rpm with an adsorption efficiency of 99.78% and an adsorption capacity of 0.9641 mg/g. Based on the results of the SEM test, it was found that the activated carbon had more pores than unactivated.

Browsing by Author "Hanifah, T. Abu"

Results Per Page

Sort Options