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Ervin Nurhayati
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Department of Environmental Engineering, ITS Campuss, Sukolilo, Surabaya, Indonesia
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INDONESIA
Jurnal Purifikasi
Published by Institut Teknologi Sepuluh Nopember Surabaya
ISSN : 14113465     EISSN : 25983806     DOI : -
Core Subject : Social, Engineering,
Chemical Engineering, Chemistry & Bioengineering Environmental Science
Jurnal Purifikasi was published since January 2000 by Division of Journal Purifikasi Department of Environmental Engineering-Faculty of Civil, Environment and Geo Engineering. Institut Teknologi Sepuluh Nopember, Surabaya in collaboration with the Association of Indonesian Sanitary and Environmental Techniques (IATPI) East Java. Jurnal Purifikasi is published twice a year in July and December, covers topics on technology and management related to environmental engineering field.
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Articles 10 Documents
 1 
Search results for , issue "Vol 10 No 1 (2009): Jurnal Purifikasi" : 10 Documents clear
PERURAIAN LIMBAH MAKANAN MENGGUNAKAN BIOREAKTOR AEROBIK DALAM FASA SUSPENSI Soeprijanto Soeprijanto
Purifikasi Vol 10 No 1 (2009): Jurnal Purifikasi
Publisher : Department of Environmental Engineering-Faculty of Civil, Environmental and Geo Engineering. Institut Teknologi Sepuluh Nopember, Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j25983806.v10.i1.157

Abstract

The purpose of this study was to degrade food wastes to simple compounds. The experiments were conducted using a slurry aerobic bioreactor with a working volume of 25 L. The bioreactor was aerated with an air flow rate of 12 L/min and an organic loading rate of 2 g/L.day. Parameters determined during operations were total solids, COD, dissolved oxygen, pH, total nitrogen and total phosphorous. The results showed that during operation time of 90 days, the oxygen requirement for degradation of food waste was 0.35 g O2/g dry weight. The degradation of solid waste was 79.60% and the removal efficiency of total COD was 79.40%. Dissolution and mineralization of food wastes achieved maximum nitrogen concentration of 123.3 mg NH4-N/L and that of phosphorus of 32.2 mg PO4-P/L. It concluded that the aerobic bioreactor could decompose fresh food wastes during a time period of 90 days without intermittent removal of suspended solids in the system.
STUDI POTENSI TAMPUNGAN HULU DPS SUNGAI SAMPEAN UNTUK PENGENDALIAN BANJIR DAN PENYEDIAAN AIR BERSIH Umboro Lasminto
Purifikasi Vol 10 No 1 (2009): Jurnal Purifikasi
Publisher : Department of Environmental Engineering-Faculty of Civil, Environmental and Geo Engineering. Institut Teknologi Sepuluh Nopember, Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j25983806.v10.i1.158

Abstract

Floods in Kabupaten Situbondo and Bondowoso were caused by overtopping of Sampean River. This paper discusses a study on control of Sampean River by utilizing the potential upstream reservoir. The upper reservoir was used to receive part of the rain water, so that the discharge to the main river could be reduced and the stored water can be used as water resource and water conservation. The discharge through the Sampean River was much greater than the flow capacity. The results of the survey and analysis indicated that eleven locations were potential for reservoir. These locations were dam sized sites in the main river, and ten locations in the tributaries of small dam size. The Tasnan dam had a potential water storage capacity up to 3.1 million m3, whereas the small dams were of 100,000 to 500,000 m3. By analyzing the 50-year raining return period, the Tasnan dam potentially reduced the floodi as much as 99.5 m3/s. The small dams of Walidono 1, Walidono 2, and Cangkring can reduce the discharge up to 5.9, 3.9, and 2.2 m3/s, respectively. Meanwhile, the small dams of Mandiro, Selolembu, Pandak, Pakis, Gubri 1, Gubri 2, and Cabang only had very small potential capacities in reducing the flood.
PENURUNAN GAS CO PADA SEPEDA MOTOR 2 TAK DENGAN MENGGUNAKAN GIPSUM Euis Nurul Hidayah
Purifikasi Vol 10 No 1 (2009): Jurnal Purifikasi
Publisher : Department of Environmental Engineering-Faculty of Civil, Environmental and Geo Engineering. Institut Teknologi Sepuluh Nopember, Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j25983806.v10.i1.159

Abstract

Air pollution is mostly generated by human activities. One of the causes is transportation. Motor cycles are one of the main sources of carbon monoxide gas emission in Indonesia. The emmited carbon monoxide can cause the decrease of the ability of the body in receiving oxygen. If carbon monoxide is exposed to human for a long time, it may cause bronchitis, emphysema, and lung cancer. One of the best methods to remove of carbon monoxide is by gypsum adsorption. This research used varied gypsum sizes of 5, 10, 15, 20 and 25 cm long, detention times of 30, 60, 90, 120, and 150 minutes, and the holes number of 10 and 20. The results showed that gypsum of 25 cm long, detention time of 150 minutes, hole number of 20 could remove carbon monoxide up to 30.32 %.
KAJIAN TEORITIS PEMISAHAN H2S DALAM BIOGAS SECARA ABSORBSI REAKTIF KE DALAM LARUTAN Fe-EDTA MENGGUNAKAN PACKED COLUMN Ali Altway
Purifikasi Vol 10 No 1 (2009): Jurnal Purifikasi
Publisher : Department of Environmental Engineering-Faculty of Civil, Environmental and Geo Engineering. Institut Teknologi Sepuluh Nopember, Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j25983806.v10.i1.160

Abstract

The presence of H2S in biogas gives dangerous effect on environment; Therefore, H2S must be eliminated from the biogas. The purpose of this research is to analyze theoretically the elimination process by reactive absorption of H2S in biogas into aqueous Fe-EDTA solution in packed column. This research was carried out by developing mathematical model of the process. The interfacial mass transfer phenomena were described by film model equations solved using van Krevelen approximation. Steady state, isothermal condition, and plug-like pattern of gas-liquid flow in packed column were assumed in this study. The model consists of differential mass balance of H2S in gas phase and Fe-EDTA in liquid phase arising system of non-linear first order differential equations solved numerically by Fourth order Runge-Kutta method under Mathlab facility. The system studied consists of a column 10 cm in diameter filled with 1cm raschig rings to the height of 100 cm. The gas flow rate was held constant at GV = 100 mL/s, liquid flow rate L’ was varied 20, 30, and 40 mL/s, pressure P was varied from 1 to 2.5 atm, the concentration of Fe-EDTA in inlet absorbent was varied from 0.02 to 0.06 kmol/m3. The experimental work was also carried out to validate the simulation prediction. The simulation results showed that the percentage of absorbed H2S can be enhanced by decreasing pressure, increasing temperature, liquid flow rate, and Fe-EDTA concentration The trend of pressure and temperature effect on % H2S recovery showed that the absorption process is controlled by the gas resistance. Using column with packing height of 1 meter, gas flow rate of 100 mL/s, using absorbent containing 0.06 kmol/m3 Fe-EDTA with flow rate of 20 mL/s, and at ambient pressure and temperature, the percentage recovery of H2S reached the value of above 99%. The simulation results agree very well with the experimental data within 3% error.
STUDI PEMANFAATAN CANGKANG KUPANG BERAS (Tellina sp) SEBAGAI BIOSORBEN UNTUK MENGOLAH AIR LIMBAH YANG MENGANDUNG ION LOGAM TEMBAGA (II) Eko Santoso
Purifikasi Vol 10 No 1 (2009): Jurnal Purifikasi
Publisher : Department of Environmental Engineering-Faculty of Civil, Environmental and Geo Engineering. Institut Teknologi Sepuluh Nopember, Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j25983806.v10.i1.161

Abstract

Tellina sp (kupang beras) shells which are available in large quantities in Sidoarjo-East Java were ground to produce biosorbent powder for removal of Cu(II) ions from synthetic waste solutions. The removal process of Cu(II) ions was carried out by dynamic adsorption method using a fixed bed column. A quantity of the shell powder was put into the column and Cu (II) ion solution was delivered through bottom-up flow to the column using a pump at a certain flow rate in room temperature. An effluent, which came out from the column, was collected at a certain time interval. The Cu (II) ion concentration in the effluent was measured using Atomic Absorption Spectrophotometer (AAS). This research was carried out using varied depth of the shell powder of 2 cm (7.01 g), 2.5 cm (8.11 g), and 3 cm (9.90 g) and varied flow rate: of 0.5 mL/minute, 1.0 mL/minute, and 1.5 mL/minute. This research resulted in adsorption capacity of the shell powder increased with the increase of bed depth. At 1 mL/minute of flow rate the adsorption capacities were of 19.14, 21.89, and 22.82 mg/g for 2, 2.5, and 3 cm respectively of bed depth. The adsorption capacity also increased with the increase of flow rate, i.e., 14.36, 21.89, and 22.39 mg/g for 0.5, 1.0, and 1.5 of flow rate for 2.5 cm of bed depth respectively. Service time (tb) and volume treated (Vb) for 10 % of Cu (II) ions in the effluent increased also with bed depth by correlation coefficient of 0.9998. At bed depth of 2 cm, 2.5 cm, and 3 cm at flow rate of 1.0 mL/minute the service time was 10.86, 16.41, and 21.73 hours at 0.65, 0.98, and 1.30 L of volume treated. At the initial stage of research, pH of influent is 4 and the final value of effluent after treated process of the column is 7. After the treatment process, the shell powder loaded Cu (II) ions were regenerated using 0.01 N of EDTA disodium solutions at pH 9. For biosorbent column of 2.5 cm bed depth at flow rate of 1.0 mL/minute needed 160 hours of service time or 9.6 L of EDTA solutions for column regeneration.
CHROMIUM AND LEAD REMOVAL USING SYNTHESIZED NANOCRYSTALLINE ZEOLITE Izarul Machdar
Purifikasi Vol 10 No 1 (2009): Jurnal Purifikasi
Publisher : Department of Environmental Engineering-Faculty of Civil, Environmental and Geo Engineering. Institut Teknologi Sepuluh Nopember, Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j25983806.v10.i1.162

Abstract

Zeolite Y nanocrystal was synthesized from a clear solution at temperature of 80-1500C with 6.38 of Si/Al molar ratio by using Aluminum isopropoxide (Al(OiPr)3) and Ludox LS as alumina and silica source, Tetrametylammonium Hidroxide (TMAOH) and Tetrametylammonium Bromide (TMABr) as first and second organic template, respectively. The products were characterised by X-Ray Diffractometer (XRD) and Scanning Electron Microscopy (SEM) to identify the structure and particle sizes. The image measurements of the particle size record that the average particle sizes of FAU-5, FAU-20 and FAU-35 are 116.46 nm, 169.33 nm and 178.12 nm, respectively. Furthermore, 0.5988 g and 0.6001 g of yields with average particle sizes of 116.46 nm and 43.76 nm can be obtained for FAU-5 (single organic template) and FAU-10 (two organic template, TMABr/TMAOH=0.15) samples, respectively. The smallest average particle size observed is 33.87 nm (FAU-15). The synthesised nanocrystalline zeolite Y was applied for Pb(II) and Cr(III) removal and the results show that the nano crystal samples have very good performance. On FAU-37 at 10 ppm, 30 ppm, 50 ppm and 80 ppm of initial concentration, the adsorption of Pb is 23.56 mg/g, 109.71 mg/g, 181.02 mg/g and 231.46 mg/g, respectively at 216 h and adsorption capacities of Cr are 23.18 mg/g, 84.94 mg/g, 109.75 mg/g and 147.37 mg/g.
PEROLEHAN KEMBALI PERAK DARI LIMBAH SISA ANALISIS COD MENGGUNAKAN METODA ELEKTROLISIS Djaenudin Djaenudin; Mindriany Syafila
Purifikasi Vol 10 No 1 (2009): Jurnal Purifikasi
Publisher : Department of Environmental Engineering-Faculty of Civil, Environmental and Geo Engineering. Institut Teknologi Sepuluh Nopember, Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j25983806.v10.i1.163

Abstract

The spent COD test solution has unique characteristics, i.e. small in volume and discontinued in production. However, it contains hazardous elements to environment such as heavy metals, i.e. silver, mercury, iron, and chromium, which could be having an economic value if can be reused. This research was subjected to the recovery of silver element the spent COD test solution using electrolysis method. The anode used was made from platinum sized 1 x 1 cm2, whereas copper was used as the cathode. The optimum silver recovery using the artificial waste of Ag2SO4 was 19.93% and the reaction rate constant value (k) was 0.0363 /minute from initial silver concentration of 199.375 mg/L to became 159.64 mg/L. This result was obtained on the experimental conditions of 5 cm electrode distance, 1 x 3 cm2 cathode surface area and DC supply voltage of 6 volt. The experiment using the spent COD test solution was carried out at electrode distance of 5 cm, cathode surface area of 1 x 3 cm2 and DC supply voltage of 6 volts. The silver recovery was 47.19% from initial silver concentration of 204.375 mg/L to be 107.92 mg/L and the reaction rate constant value (k) was 0.1053 /minute. The results showed that the increasing in DC supply voltage and the reducing in the electrode distance would increase the silver recovery.
PENGARUH KONSENTRASI AWAL DAN PENAMBAHAN H2O2 TERHADAP EFEKTIVITAS DEGRADASI FOTOKATALISIS METHYLENE BLUE PADA FILM TiO2 Akhiruddin Maddu
Purifikasi Vol 10 No 1 (2009): Jurnal Purifikasi
Publisher : Department of Environmental Engineering-Faculty of Civil, Environmental and Geo Engineering. Institut Teknologi Sepuluh Nopember, Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j25983806.v10.i1.164

Abstract

Photocatalytic degradation of methylene blue (MB) in water using TiO2 film was investigated. TiO2 film was coated on glass substrate by squeegee printing method. TiO2 film has an anatase phase with crystallite size of 24.5 nm regarding to X-ray diffraction analysis result. Photocatalysis test was carried out in the static water bath containing Methylene Blue. TiO2 film on glass substrate placed in water bath with MB dye solution was exposed with UV light source. The Effects of concentration and pH of MB solution and H2O2 addition were investigated. Degradation of MB showed an optimal result for MB concentration of 5 mM. Addition of H2O2 into water could also increase the photocatalytic degradation of MB up to 84.2% with a degradation rate of 0.01 minute-1.
PRODUKSI ALKOHOL DARI SAMPAH RUMAH TANGGA Nanang Mudjito
Purifikasi Vol 10 No 1 (2009): Jurnal Purifikasi
Publisher : Department of Environmental Engineering-Faculty of Civil, Environmental and Geo Engineering. Institut Teknologi Sepuluh Nopember, Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j25983806.v10.i1.165

Abstract

This research was aimed to produce alcohol from organic solid waste using Saccharomyces cerevisiae. The solid waste was treated in varied sizes and yeast concentrations. The procedure involved size reduction by cutting the solid waste, followed by steaming. The next stage was addition of yeast for fermentation. Size variations were 3 and 10 cm. Each sample was of 2 kg weight. Samples were steamed for 30 and 60 minutes. Yeast was added in different amounts of 0%, 10%, 20%, and 30%. Fermentation was done within 2, 4 and 8 days. The highest alcohol volume of 505 mL was obtained in the reactor, WITH fine solid waste of 3 cm, which had been steamed for 60 minutes, and added by of 30% yeast, with fermentation time of 8 days.
BIOGAS SEBAGAI PENGGANTI MINYAK TANAH DAN KAYU BAKAR UNTUK BAHAN BAKAR ALTERNATIF RUMAH TANGGA Nanang Mudjito
Purifikasi Vol 10 No 1 (2009): Jurnal Purifikasi
Publisher : Department of Environmental Engineering-Faculty of Civil, Environmental and Geo Engineering. Institut Teknologi Sepuluh Nopember, Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j25983806.v10.i1.166

Abstract

Main problem about study of biogas exploitation for domestic alternative fuel is related to economic value which is directly felt by consumer society. Target of this study is to assist society, mostly of their resident look after ox livestock, in order to exploit potency of livestock dirt to be processed become main fuel becoming domestic requirement. Study of biogas exploitation conducted by compared calor value yielded from three digester that is digester from HILINK UNMER program, Department of Agriculture and Self-Supporting Socialize. Then compared calor value between biogas, kerosene, and firewood. Based the result of economics calor value examination, results that biogas calor is higher if compared with kerosene and firewood. Based on economic calculation results, the consuming of biogas as a main fuel, is more able to thrift economize budget compared than that kerosene and firewood fuel.

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