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Ervin Nurhayati
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purifikasi@gmail.com
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purifikasi@gmail.com
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Department of Environmental Engineering, ITS Campuss, Sukolilo, Surabaya, Indonesia
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Kota surabaya,
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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 6 No 1 (2005): Jurnal Purifikasi" : 15 Documents clear
KAJIAN PERBANDINGAN MODEL ALIRAN AIR LIMBAH DOMESTIK SECARA UPFLOW DAN DOWNFLOW PADA BIDANG EVAPOTRANSPIRASI Sarwoko Mangkoediharjo
Purifikasi Vol 6 No 1 (2005): 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.v6.i1.260

Abstract

Penelitian ini menggunakan limbah domestik dari effluen Instalasi Pengolahan Limbah Tinja (IPLT), Keputih. Variasi jenis tumbuhan yang digunakan, yaitu bayam cabut (Amaranthus trocolor) dan rumput paitan (Axonopus compressus). Pada aliran upflow nilai efisiensi penurunan BOD5 75,38 - 96,60 %, sedangkan aliran downflow sebesar 71,86 - 91,71 %. Untuk penurunan N-Total efisiensi pada aliran upflow sebesar 69,85 - 95,46 % dan pada aliran downflow sebesar 42,02 - 90,20 %. Sedangkan pada P-Total, efisiensi penurunan pada aliran upflow 87,84 - 96,72 % dan pada aliran downflow 83,92 - 91,78 %. Perbandingan jenis pengaliran dalam menurunkan konsentrasi air limbah menunjukkan bahwa aliran upflow dengan tumbuhan rumput paitan merupakan suatu kriteria desain bidang evapotranspirasi paling efektif dalam pengolahan limbah domestik.
KAJIAN SISTEM PENGANGKUTAN SAMPAH KABUPATEN MAGETAN Dewi Dwirianti
Purifikasi Vol 6 No 1 (2005): 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.v6.i1.261

Abstract

Magetan Municipality with the average of solid generation was 2L/person/day .The methods used in the study were interview and observation to all solid waste transport vehicles. Analysis of the technical aspect analysis included transportation time, efficiency, number of vehicles, amount of transported solid waste, existing route, alternatives for service area development and route improvement. This study showed that the waste transport efficiencies of the dump trucks and the manual trucks could be increased from the existing 1 to 2 trips/day. Additionally, the efficiency of the pick up vehicle could be increased from 1 to 3 trips/day. In the solid waste transport using Hauled Container System (HCS), the efficiency could be increased from 4 to 6 trips/day using the current off route factor, and increased to 8 trips/days with the reduction of off factor from 0,38 to 0,18.
KAJIAN PENEMPATAN POLISI LALU-LINTAS POLWILTABES SURABAYA :KONSENTRASI TIMBAL DALAM DARAH Joni Hermana; Rachmat Boedisantos
Purifikasi Vol 6 No 1 (2005): 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.v6.i1.262

Abstract

Kebijakan penempatan polantas tidak memandang segi keamanan internal pada setiap polantas terhadap dampak paparan tetapi lebih dititikberatkan pada segi keamanan masyarakat di jalan. Tujuan penelitian adalah untuk menganalisis dan mengevaluasi kualitas udara dan seberapa besar konsentrasi timbal yang terpapar pada polantas. Pengukuran konsentrasi Pb dalam darah pada polantas berdasarkan lokasi bekerja dan masa kerja, melalui pengukuran laboratorium dan hasil jawaban responden atas kuisioner penelitian. Sedangkan lokasi penelitian adalah Satuan Lalu Lintas Polwiltabes Surabaya khususnya pada Rayon 1 dan Rayon 2. Hasil pemeriksaan laboratorium menunjukkan sebagian besar responden polantas (70%) memiliki konsentrasi Pb darah dalam kategori toleransi, 13,33% dalam kategori berlebih dan 16,67 % dalam kategori normal dan kurva regresi menunjukkan Pos Tetap memiliki resiko terpapar cukup tinggi diikuti Pos Pantau dan resiko terendah adalah bagian administrasi
PERUBAHAN KARAKTERISTIK FISIK FLOK LUMPUR ALUM PADA PENGKONDISIAN GANDA DENGAN POLIMER Bieby Voijant Tangahu
Purifikasi Vol 6 No 1 (2005): 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.v6.i1.263

Abstract

Several alum sludge properties are high water concentration, resistance to mechanical dewatering and hard to be disposed of or handled. Alum sludge is hard to be dewatered because of its physical characteristics, thus it is often conditioned by using polymer to alter its characteristics, so it is easier to be dewatered. This research was aimed to study amphoteric polymer capability to change physical characteristics of flocs in dual conditioning for alum sludge. Dual conditioning using amphoteric polymer, produced flocs with greater size than single conditioning, also high flocs strength and fractal dimension.
PENURUNAN WARNA REAKTIF DENGAN PENGOLAHAN KOMBINASI KOAGULAN PAC (POLY ALUMINIUM CHLORIDE) DAN MEMBRAN MIKROFILTRASI Bowo Djoko Marsono
Purifikasi Vol 6 No 1 (2005): 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.v6.i1.264

Abstract

Penelitian ini menggunakan kombinasi proses filtrasi membran dengan penambahan koagulan PAC (Poly Aluminium Chloride) 1% untuk menurunkan warna limbah sintetis reaktif Remazol Turqouise Blue G. Variasi yang dilakukan yaitu pada proses filtrasi membran tanpa pengolahan pendahuluan, filtrasi membran dengan pengolahan pendahuluan flash mix dan filtrasi membran dengan pengolahan pendahuluan flash mix, slow mix, dan sedimentasi. Tekanan yang digunakan adalah 0,25 kg/cm2, 0,50 kg/cm2, 0,75 kg/cm2, 1,00 kg/cm2. Reaktor membran yang digunakan yaitu jenis dead-end selama 5 jam dengan waktu pengambilan permeate setiap 15 menit. Parameter yang diukur yaitu efisiensi penurunan warna dan fluks membran. Fluks terbaik sebesar 2063,17 L/m2.jam untuk proses I, 596,91 L/m2.jam untuk proses II, dan 1564,02 L/m2.jam untuk proses III. Efisiensi penurunan warna terbaik dicapai pada tekanan operasi 0,5 kg/cm2 pada semua proses yaitu berturut-turut 27,79%, 99,84%, dan 98,48%.
SOLIDIFIKASI DAN STABILISASI BAHAN BUANGAN KERAK BAJA DARI INDUSTRI BAJA MALAYSIA Salmiati Yunus
Purifikasi Vol 6 No 1 (2005): 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.v6.i1.265

Abstract

The study was conducted to test steel’s slag wasted from Malaysia’s steel industry as concrete using solidification/ stabilization method (S/S). The concrete was tested using pressurized test and Toxicity Characteristic Leaching Procedure (TCLP). Ions that were tested were Cd, Cu, Cr3+, Cr6+, Fe, Pb, Mn, S, Zn and Ni. After TCLP procedure, all ion concentration were under threshold limit issued by the Jabatan Alam Sekitar (JAS) standard. Ion concentration Al, Cu, Cr6+, Fe, Mn and Ni were increased along with curing age. Meanwhile, Cd and Pb ions were decreased along with curing age. Based on compressive test, mortar that contain steel slag were more stronger than control mortar in every curing age. This research concluded that steel slag in Malaysia’s industrial steel could be used as alternative building material.
PEMANFAATAN KULIT BIJI METE UNTUK ARANG AKTIF SEBAGAI ADSORBEN TERHADAP PENURUNAN PARAMETER PHENOL Mohammad Razif
Purifikasi Vol 6 No 1 (2005): 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.v6.i1.266

Abstract

Proses adsorpsi merupakan salah satu cara pengolahan air yang mengandung bahan organik, yang pada umumnya menggunakan karbon aktif sebagai bahan penyerap (adsorben). Kulit biji mete dapat digunakan sebagai bahan untuk menghasilkan arang aktif yang berkualitas baik, karena terdiri dari tiga lapisan kulit yaitu lapisan endokarp, mesokarp dan epikarp yang memiliki kandungan lemak dan protein yang tinggi. Bahan pengaktif (aktivator) yang digunakan yaitu H3PO4, ZnCl2 dan NaOH. Pada proses karbonasi dilakukan variasi suhu pemanasan. Karbon aktif yang dihasilkan diuji kemampuannya untuk mengadsorpsi limbah phenol dengan menggunakan persamaan Isoterm Langmuir, Isoterm Freundlich dan Isoterm BET. Hasil penelitian menunjukkan bahwa efisiensi penurunan phenol terbesar didapatkan oleh karbon aktif dengan aktivator ZnCl2 dengan suhu pemanasan 6000C selama 1 jam yaitu sebesar 96,9% sampai 98,5% dengan konsentrasi awal phenol 300 mg/l.
ANALISIS CURAH HUJAN DENGAN MODEL LINIER DAN BILINIER Junaidah Ariffin
Purifikasi Vol 6 No 1 (2005): 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.v6.i1.267

Abstract

Countries with tropical climate like Malaysia are subjected to heavy rainfall concentrated in a short duration of time during certain months in a year. Such heavy rainfalls give rise to high runoff with peak flow occurring within a short duration leading to the occurrence of flash flood. A model that forecasts rainfall effectively is imperative as this helps to eliminate damages in the event of flood. Accuracy, reliability and timeliness are the elements required for an accurate forecast. This paper presents diagnostic analysis on the rainfall data using linear and bilinear models. The analysis confirmed that the Akaike’s Information Criterion (AIC), Akaike’s Bayesian Information Criteria (BIC), SBIC and the residual variances for Bilinear (BL) model is smaller than that of ARIMA (Autoregressive Integrated Moving Average) model. This suggests that the bilinear model fits the rainfall better. Thus, the finding may lead to the development of a more accurate model for flood forecasting.
EFEK DIMENSI VALVE GAP PADA KINERJA MESIN DAN BUANGAN EMISI GAS DARI MESIN PENGAPIAN EMPAT TAK: STUDI PERCOBAAN Joko Sarsetiyanto; Mahirul Mursid
Purifikasi Vol 6 No 1 (2005): 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.v6.i1.268

Abstract

Valve adalah bagian penting dalam pembakaran mesin internal. Mekanisme valve harus dipelihara agar dimensi gap tetap ideal. Dimensi gap dapat berubah oleh proses dan mengendurkan adjusment sekrup. Dimensi gap menandai jumlah campuran air-fuel yang memasuki ruang pembakaran dan kebocoran tekanan. Kebocoran disebabkan oleh penundaan waktu clossing katup buang. Penelitian ini menunjukkan dimensi gap valve mempunyai efek penting pada kinerja mesin dan emisi gas. Percobaan laboratorium dilaksanakan untuk mengukur kinerja mesin dan emisi gas. Parameter mesin yang diuji adalah 4K jenis empat stroke mesin pengapian, dengan sepasang intake exhaust gap dimensi bervariasi: 10mm-20mm, 15mm-25mm, 20mm-30mm, 25mm-35mm dan 30mm-40mm. Hasil yang dicapai yaitu jumlah maksimum mesin operasi adalah 3000 rpm dengan sepasang intake-exhaust gap dimensi 25mm-35mm, dengan kondisi itu menghasilkan BHP= 49,40 hp, BTorsi= 11,80 kg-m, BMEP= 11,49 kgf/cm2, BSFC= 0,26 kg/ hp- jam dan BTE= 24,29% sedangkan emisi gas CO= 3,6% vol., CO2= 13,1% vol, HC= 225 ppm, dan O2= 1,1%.
PENGARUH DEBIT LIQUID TERHADAP EFISIENSI ABSORBSI DALAM PENYISIHAN SO2 PADA SPRAY TOWER ABSORBER Abdu Fadli Assomadi
Purifikasi Vol 6 No 1 (2005): 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.v6.i1.269

Abstract

One technique to eradicate SO2 contaminant is gas absorbtion system with liquid, for instance Spray Tower Absorber. The research was performed to examine changes value pH adsorber and SO2 efficiency removal within 90 minutes using solar oil 100% with initial pressure of fuel tank = 60, 80 and 100 psi; and flow, water volume, nozzle = 3,5 and 7 L/minutes. Absorber used in this experiment was 0,0006% H2O2 solution. The result shows that pressure and flow absorber affect the absorbtion efficiency for real. Initiate pressure of fuel tank that was greater within time had caused the decrease of absorbtion efficiency faster. The value of pH absorber after being used for absorbtion within 90 minutes was approximately 6,79 because of the raw water buffer originated by acidity and hardness. For efficiency more than 70%, lowest pH absorber was on range 5,59-6,25 and total recirculation for flow 3 L/minutes was maximum 17 times, flow 5 l/minutes was 34 times and for 7 l/minutes was maximum 56 times of recirculation.

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