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Ervin Nurhayati
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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.
Arjuna Subject : -
Articles 385 Documents
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ADSORPTION OF HEAVY METALS Pb, Cd, Hg, Ag, Fe, AND Zn FROM SOLUTION BY RICE STRAW Soediatmoko Soediman
Purifikasi Vol 12 No 3 (2011): 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.v12.i3.78

Abstract

As rice straw is abundantly available in Indonesia and other tropical developing countries as an agricultural waste, this material may be used as a simple and environmentally friendly way to remove heavy metals from contaminated water sources for human use. In this paper, untreated rice straw was studied towards its ability to adsorb several heavy metals Pb, Cd, Hg, Ag, Fe, and Zn ions from aqueous solutions at concentrations of 2 ppm and 20 ppm, in individual and mixed solutions. In individual solutions at 2 ppm, the order of metal sorption by straw when calculated on a weight basis is Zn > Pb > Cd > Ag > Fe > Hg, at 20 ppm it is Pb > Fe > Cd > Zn > Hg > Ag. The selective order of the metal sorption at 2 ppm is: Cd > Zn > Pb > Ag > Fe ≈ Hg; while at 20 ppm, the order is Pb > Fe > Ag > Hg > Cd > Zn. Interestingly, in mixed solution experiments competitions between metals were occurred. The adsorption of the metals was also in line with the decrease of pH of the solutions, especially for Hg, suggesting that chemical reactions i.e. the release of H+ was occurred. Further studies on the potentials of rice straw to filter out heavy metals from contaminated water are warranted.
PENGOLAHAN AIR GAMBUT/RAWA DENGAN PROSES KOAGULASI-MEMBRAN ULTRAFILTRASI Sri Aprilia
Purifikasi Vol 12 No 3 (2011): 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.v12.i3.79

Abstract

Warna air pada air gambut/rawa timbul karena senyawa-senyawa asam humus berikatan dengan ion logam di dalam air. Air berwarna yang mengandung senyawa non ionic tidak dapat dihilangkan dengan cara koagulasi. Untuk menghilangkan zat warna pada air rawa/gambut digunakan membran selulosa secara ultrafiltrasi. Membran selulosa asetat dibuat 6 variasi. Membran konsentrasi 10% menghasilkan Lp yang besar. Analisa SEM menunjukkan distribusi pori yang homogen dan bentuk pori adalah sponge. MWCO membran diperoleh pada berat molekul dekstran di atas 30000 Dalton. Air sungai dilakukan proses koagulasi diperoleh kondisi optimum pada pH 8 dan konsentrasi koagulan 40 ppm. Proses Membran disertakan koagulasi dapat mengurangi zat warna sekitar 80%, sedangkan tanpa koagulasi sekitar 30%. Fluks permeat tinggi pada air sungai dengan koagulasi. Membran yang baik dari segi fluks yang tinggi diperoleh pada membran M10T30. Penyisihan warna pada semua membran menunjukkan hasil yang signifikan.
PENGAMBILAN NIKEL DARI LIMBAH PELAPISAN NIKEL (ELEKTROPLATING) DENGAN PROSES ELEKTROLISIS Elvianto Dwi Daryono
Purifikasi Vol 12 No 3 (2011): 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.v12.i3.80

Abstract

Penelitian ini bertujuan untuk mengetahui pengaruh pH, suhu, jumlah pasangan elektroda dan waktu proses terhadap nikel yang terambil pada limbah elektroplating dengan menggunakan proses elektrolisis. Kondisi operasi meliputi jenis larutan elektrolit, arus listrik, jarak elektroda, jenis anoda, jenis katoda dan volume air limbah. Tahap persiapan dengan mengambil limbah untuk analisa awal kadar Ni. Tahap perlakuan adalah pencucian dengan menggunakan asam (pickling). Pada tahap percobaan mengisi tangki dengan limbah kemudian melakukan proses sesuai dengan variabel penelitian dan kondisi operasi. Sample dianalisa kadar Ni dengan menggunakan AAS (Atomic Absorption Spectrophotometer). Didapatkan kondisi terbaik yaitu pada pH 6, suhu 65oC, jumlah pasangan elektroda 3 dan waktu proses 60 menit, dimana kandungan nikel pada limbah turun dari 763,432 ppm menjadi 145,275 ppm.
PENGARUH BAKTERI DALAM PENCEMARAN LIMBAH TERHADAP KOROSI PADA STRUKTUR BAJA DI LINGKUNGAN LAUT Herman Pratikno
Purifikasi Vol 8 No 1 (2007): 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.v8.i1.105

Abstract

Corrosion is the phenomena on the offshore structures which is impossible to avoid. Corrosion is occurred by physical, chemical and biological process. Generally, biological corrosion is caused by presence of microbes which on its process can be individual or make a new colony with other bacteria. Ocean outfall usually produce some bacteria which having role in corrosion process. With artificial sea water media and the corrosion rate calculation based on ASTM standard, has been compare the corrosion rate of the specimen on 3 sea water condition, consist of deep sea water (salinity 33‰), medium sea water (salinity 35‰), shallow sea water (salinity 37‰) and variate into 3 kinds bacteria as follows: Escherichia coli, Pseudomonas fluorescens, and Thiobacillus ferroxidans The result of this analysis show that maximum corrosion rate is 1,321 mm/year or increase 89,79% from the normal condition without adding bacteria, with value 0,696 mm/year.
PENENTUAN KOEFISIEN YIELD (Y) DAN KOEFISIEN ENDOGENOUS DECAY (kd) PADA PROSES LUMPUR AKTIF TERHADAP AIR TERPRODUKSI DENGAN REAKTOR BATCH rita mustika wahyuning srie gunarti; Ipung Fitri Purwanti
Purifikasi Vol 8 No 1 (2007): 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.v8.i1.106

Abstract

Air terproduksi merupakan produk buangan kegiatan pengeboran minyak bumi dan gas yang mengandung salinitas tinggi, organik terlarut, organik tak terlarut dan logam berat. Proses lumpur aktif yang memanfaatkan peran mikrorganisme aktif dapat diaplikasikan dalam pengolahan Air terproduksi. Salah satu kriteria yang dibutuhkan dalam perencanaan bangunan lumpur aktif adalah koefisien biokinetik, yaitu koefisien yield (Y) dan koefisien endogenous decay (kd). Keduanya digunakan dalam mendesain dimensi reaktor, perkiraan jumlah produksi lumpur dan kebutuhan oksigen dalam proses lumpur aktif. Penentuan Y dan kd dari kultur campuran teraklimatisasi terhadap limbah air terproduksi asli yang berasal dari wilayah pengeboran migas di daerah Poleng, Laut Jawa dilakukan secara aerobik batch selama 24 jam. Sebelumnya, ditentukan komposisi nutrien (BOD5 : N : P) terbaik dari air limbah dengan aerasi selama 96 jam dilihat dari efisiensi penyisihan COD, TSS dan minyak terbesar di antara variasi yang digunakan. Hasil penelitian menunjukkan bahwa komposisi nutrien (BOD5 : N : P) terbaik untuk efisiensi penyisihan COD, TSS dan minyak adalah 100 : 10 : 1 dengan nilai berturut-turut sebesar 70,59%, 63% dan 81,41%. Nilai Y dan kd dari kultur campuran terhadap limbah air terproduksi dengan penambahan nutrien adalah sebesar 0,3806 mg VSS/mg COD dan 0,0602 hari-1. Tanpa penambahan nutrien dihasilkan nilai Y dan kd sebesar 0,3684 mg VSS/mg COD dan 0,0736 hari-1.
PEMANFAATAN SLUDGE INDUSTRI SEBAGAI ALTERNATIF MEDIA TANAM JARAK PAGAR (JATROPHA CURCAS L.) YANG BERASOSIASI DENGAN MIKORIZA ARBUSKULA tutik nurhidayati
Purifikasi Vol 8 No 1 (2007): 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.v8.i1.107

Abstract

The aim of this research is to decrease the heavy metal contents and to improve the industrial sludge quality by applying arbuscula mycorhiza, so that it may be used as plant growth alternative medium. The results of the study showed that (1) content of the heavy metals in the plant growth media made from mixtures of sludge and soil after treatment with Jatropha curcas L was decreased (2) the growth of J. curcas L, as showed by height, leaf width and biomass dry weight showed decreasing or inhibiting effect with the higher proportion of sludge than that of the soil, where mycorhiza was not inoculated. In contrast, the smaller sludge proportion to soil, where mycorhiza was inoculated, the higher the plant growth rates.
PENGARUH PENGGUNAAN SERBUK BIJI KELOR (MORINGA OLEIFERA) TERHADAP PENURUNAN KONSENTRASI CU(II) DALAM LIMBAH CAIR BUATAN DENGAN PROSES ADSORPSI harmin sulistyaning titah
Purifikasi Vol 8 No 1 (2007): 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.v8.i1.109

Abstract

Kelor (Moringa oleifera) is a kind of bush plant, which has a number of application potential, started from the leaf till the root. The seeds can produce 4-(alpha-L-rhamnosyloxy)benzyl isothiocyanate compound which can bind Cu(II). Besides, the seed also contains protein with cysteine and methionine components, which can bind Cu(II) from S-H group. In this research, copper adsorption by horse radish seed was measured, using complete powdered seeds (with epidermis skin part) and incomplete seeds (without epidermis). Two sizes of the powdered seed of 35/80 and 80/115 mesh sizes were applied. The initial concentrations of Cu(II) were 0; 0,25; 1; 5; 10 mg/L. The Cu(II) concentrations were analyzed using Atomic Absorption Spectrophotometer. In the batch process, the removal efficiency of Cu(II) was up to 97,07 % at initial concentration of 10 mg/L, using the incomplete seeds of 80/115 mesh size. In a continuous process with a flowrate of 0,5065 ml/minute Cu(II) removal was up to 96,2 %, and the adsorption capacity was 0,000149 mg adsorbate/mg adsorbant.
PENGOLAHAN LINDI DARI PROSES KOMPOSTING DENGAN CANNA EDULIS PADA CONSTRUCTED WETLAND ALIRAN VERTIKAL Mohammad Falahul A'laa Alharomaini
Purifikasi Vol 8 No 1 (2007): 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.v8.i1.110

Abstract

Lindi yang dihasilkan dari aktivitas komposting jarang diperhatikan pengelolaannya, sehingga dapat menyebabkan pencemaran air tanah dan air permukaan. Alternatif solusi yang dapat digunakan adalah sistem Constructed Wetland, yaitu sistem pengolahan limbah cair menggunakan tumbuhan air. Penelitian ini bertujuan menguji kemampuan reaktor Sub Surface Flow Constructed Wetland (SSFCW) aliran vertikal untuk menurunkan kandungan N total, Total Solids (TS) dan Permanganate Value (PV) lindi pada berbagai variasi lindi dengan beban konsentrasi N sebesar ± 100 mg/L dan 150 mg/L dengan menggunakan Canna edulis. Reaktor yang digunakan berukuran 90×30×50 cm dengan kedalaman media 40 cm. Media yang digunakan adalah pasir dengan porositas 47,91% dengan perencanaan waktu tinggal 1 hari dan debit pengaliran 25 L/hari. Dari hasil penelitian didapatkan efisiensi penyisihan kandungan N paling tinggi adalah 89,88% pada reaktor SSFCW aliran vertikal dengan beban konsentrasi N sebesar 150 mg/L. Sedangkan untuk efisiensi TS dan PV tertinggi adalah 70,72 % dan 98,20 % didapatkan pada reaktor SSFCW aliran vertikal dengan tanaman C. edulis dengan beban lindi N sebesar 100 mg/L. Tanaman C. edulis mengalami pertambahan tinggi maksimal sebesar 1,83 cm pada pengamatan hari ke-6.
PENYISIHAN ORGANIK LIMBAH CAIR DOMESTIK PADA INSTALASI PENGOLAHAN DENGAN SISTEM JOHKASOU KASUS: RUSUN DUKUH SEMAR, CIREBON Prayatni Soewondo
Purifikasi Vol 8 No 1 (2007): 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.v8.i1.111

Abstract

Johkasou wastewater treatment system, which was developed in Japan, has been adapted in the Dukuh Semar low cost appartment in Cirebon City. Information on the community attitude in handling the sanitation problems was identified by questionairres. Whereas, the performance of the Johkasou instalation is evaluated according to Water Quality Standards according to goverment regulations No. 82/2001. Field observations showed that the organic removal rate reaches 88,94% on BOD and 84,66% on COD. While the instalation has an influent of about 1,1016 kg/day and an organic loading of about 0,0286 kg/m3/day. The rasio of BOD5/COD of the wastewater of the Johkasou instalation is 0,62. The efficiency of nitrogen removal reaches 80,85% for amonia with a loading of 0,852 kg/day and 52,69% for nitrate with a loading of 0,2644 kg/day. Other parameters that have also been observed are suspended solid (74,72%), fosfate (88,43%) and bacteria (99,63% as coliform). The quality of waste water that has not achieved the ideal standard is nitrogen, so there are needs to be further processing that includes nitrification and denitrification. The work applied by this instalation has not achieved its optimum capacity because of certain phisical conditions and also some imperfection in the instalation effected by the habitual conditions of the society living inside the housing area.
PENENTUAN KOEFISIEN AIR LARIAN PADA SISTEM DRAINASE DI KOTA KEDIRI Okik Hendriyanto
Purifikasi Vol 8 No 1 (2007): 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.v8.i1.112

Abstract

Land use change in an area results in the change of soil infiltration rate. The impact which is possible to happen is flood. Change of land use will change the run off coefficient (C). This research is aimed to measure the run off coefficient in order to determine decreasing flood rate in Kediri City using flow rate data from rainfall analysis from river flow data. In this research 3 rain stations located in Kediri City were observed. Independent variables included drainage basin, rainfall, and river flow. Run off coefficient (C) was used as a dependent variable. Results of this research showed that the Jetting (Direct Run Off) Coefficient was 0.11-0.13. This value was low, considering that during the dry season, the river water flow decreased significantly. The decrease of the river water flow was because of the uses for irrigation and for fulfilling other human needs. but moment of the rains happened floods because drainage channel stuffed up by garbage.

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