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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 15 Documents
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Search results for , issue "Vol 8 No 1 (2007): Jurnal Purifikasi" : 15 Documents clear
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.
KINERJA MEMBRAN MIKROFILTRASI DALAM MENGURANGI BAKTERI PADA PROSES PEMURNIAN AIR Sri Mulyati
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.i1.113

Abstract

Proses mikrofiltrasi adalah salah satu teknologi pengolahan air minum yang dapat menghilangkan padatan tersuspensi dan bakteri. Penelitian dilakukan dengan menggunakan membran polimer selulosa asetat sebagai media penyaring dengan ukuran pori 0,2 mm dan berdiameter 47 mm. Modul membran didesain dengan aliran dead-end (tegak lurus dengan lapisan membran) dan aliran crossflow (aliran silang). Proses ini dilakukan dengan memvariasikan tekanan operasi dan pH air baku. Dari hasil penelitian diperoleh harga koefisien permeabilitas air murni sebesar 2,7952 mL/detik.m2.bar. Rejeksi dan fluks maksimum yang diperoleh adalah sebagai berikut: fluks maksimum sebesar 6,325 mL/detik.m2 untuk aliran crossflow sedangkan aliran dead-end diperoleh sebesar 4,578 mL/detik.m2, fluks maksimum untuk kedua proses terjadi pada tekanan umpan 1,25 bar. Pada membran baik aliran crossflow maupun dead end rejeksi Escherichia coli dan kekeruhan tertinggi 100% diperoleh pada tekanan 0,25 bar untuk rejeksi E. coli dan 98,81% untuk rejeksi kekeruhan. Kondisi optimal untuk pH terjadi pada range pH 6-8, dimana fluks dan rejeksi maksimum didapat sebesar 100 %.
STUDI PENGARUH BULKING AGENTS PADA PROSES BIOREMEDIASI LUMPUR MINYAK Mochamad Arief Budihardjo
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.i1.114

Abstract

Tujuan penelitian ini adalah untuk mengetahui kondisi media yang sesuai pada proses bioremediasi oil sludge, mengetahui besarnya efisiensi penyisihan Total Petroleum Hydrocarbons (TPH), dan mengetahui jenis bulking agents yang paling baik. Campuran bahan yang digunakan adalah tanah bersih, oil sludge, bulking agents, pupuk NPK, dan pupuk kandang. Kadar TPH awal yang digunakan sebesar 5,58%. Bulking agents yang digunakan adalah sekam padi, serbuk gergaji, dan rumput liar. Untuk variabel kontrol yang diukur adalah humidity, suhu, pH, dan nutrisi. Penelitian ini dibatasi hingga kadar TPH akhir maksimal 1%, sesuai dengan KepMenLH No 128/2003, yang mentoleransi kadar TPH maksimal 1%. Hasil penelitian menunjukkan rasio C/N/P yang menurun setelah 15 hari. Selain itu pH sebesar 5–9 telah memenuhi kriteria sebagai media yang sesuai bagi mikroba tanah (pH ideal 6-9). Suhu selama penelitian(15-450C) tergolong ideal bagi pertumbuhan bakteri. Kelembaban cenderung stabil antara 12-30%. Masing-masing windrow menunjukkan pola penurunan konsentrasi TPH yang tipikal. Kadar TPH pada akhir penelitian berbeda. Sedangkan efisiensi penyisihan TPH dengan menggunakan bulking agents sekam padi, rumput liar, dan serbuk gergaji masing-masing sebesar 76,85%, 87,05%, dan 79,43%. Windrow yang menunjukkan efisiensi penyisihan TPH terbesar dengan konsentrasi TPH akhir paling kecil, adalah windrow B, yaitu yang menggunakan bulking agents rumput liar.
EFISIENSI PENGOLAHAN LIMBAH OLI BENGKEL MENGGUNAKAN REAKTOR DISSOLVED AIR FLOTATION PADA SKALA LABORATORIUM Muhammad Irfa'i
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.i1.115

Abstract

The increasing number of car service stations in Banjarmasin might increase the generation of hazardous oil waste to the environment. This research was aimed to -obtain the optimum efficiency of a laboratory scale Disolved Air Flotation (DAF) for reducing oil waste pollutant concentration. The reactor was designed based on some variations of detention time, air supply and feeding rate. The experiment was expected to result in optimum design criteria for reducing oil waste pollutant. This research was conducted on a laboratory scale DAF system. Result of this research showed average oil/grease removal efficiency of 86,65% for the detention time of 30 minutes, with by DAF system, mean 85,62% at giving of air 45 L/minutes and 89,94% for high feed (K3). Based on Two Way ANOVA test of significant difference of exclusion of oil waste which significant at variation giving of air, time contact and giving feed.

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