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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 2 (2007): Jurnal Purifikasi" : 15 Documents clear
MEKANISME PENURUNAN JUMLAH BAKTERI INDIKATOR DALAM PROSES KOAGULASI FLOKULASI Ignasius Dwi Atmana Sutapa
Purifikasi Vol 8 No 2 (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.i2.120

Abstract

Aplikasi koagulan merupakan salah satu cara yang efektif dalam menurunkan jumlah bakteri indikator dalam proses pengolahan air bersih. Untuk mendapatkan kinerja koagulan yang optimal dalam sistem pengolahan air bersih, mekanisme penurunan jumlah bakteri indikator oleh koagulan perlu dipelajari. Hingga kini, belum ada penelitian yang menjelaskan bagaimana mekanisme koagulan menurunkan jumlah bakteri indikator. Tujuan penelitian ini adalah untuk mempelajari mekanisme penurunan jumlah bakteri indikator yang terjadi akibat aplikasi koagulan. Penelitian ini dilakukan dengan menghitung jumlah bakteri indikator dalam sampel yang diambil dari Situ Cibuntu. Metode penghitungan jumlah bakteri indikator yang digunakan adalah metode membran filter. Dalam penelitian ini juga dilakukan pengukuran parameter fisik dan kimia air selama proses pengolahan seperti turbiditas, pH, dan kandungan nutrien dalam air. Hasil penelitian menunjukkan bahwa proses penurunan jumlah bakteri indikator akibat aplikasi koagulan terdiri dari tiga mekanisme yang diduga terjadi bersamaan, yaitu penurunan pH, penjebakan bakteri dalam flok, dan penurunan kandungan nutrien dalam air.
PENGUJIAN NUTRIEN ANORGANIK UNTUK BIOREMEDIASI TUMPAHAN MINYAK MENTAH DENGAN METODE BIOSTIMULASI DI LINGKUNGAN PANTAI SURABAYA TIMUR Munawar Munawar
Purifikasi Vol 8 No 2 (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.i2.121

Abstract

Bioremediation is an application of biological processes to treat ground water, soil, and mud contaminated with hazardous chemical. In this study, inorganic nutrient of commercial NPK fertilizer was applied. Crude oil was from Pertamina oil source of Cepu, Center Java. Crude oil was applied based on a consideration that many oil spill accidents spilled crude oil. The site was coastal area in Keputih, Sukolilo, Eastern Surabaya. In the study, experimental squares of 0,5 m x 0,5 m was made, each square had 0,25 m space. There were 18 experimental squares and one control square. Variables consist of nutrient level (0,2; 0,3; and 0,4 kg/square) and soil treatment (tilled and not). It was observed from study that inorganic nutrient significantly affected the decrease of crude oil concentration. It was also observed that tilled soil resulted in better effect and could decrease oil concentration until 36,61%. Otherwise, untilled soil decreased only 32,33%.
Adsorption of Cadmium (II) and Lead (II) by Agricultural Wastes Indrajati Kohar
Purifikasi Vol 8 No 2 (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.i2.122

Abstract

As heavy metal pollution becomes a growing concern in the world, many environmentally friendly ways to remove heavy metals have been studied. Agricultural waste is an option for this purpose. In this paper, four agricultural wastes were studied towards their ability to adsorb Pb(II) and Cd(II) from aqueous solutions at concentrations of 1, 2.5 and 5 mg/L, viz. rice straw, sweet rice straw, sugar cane bagasse, and activated carbon from sugar cane bagasse as a reference. Carbon from sugar cane bagasse showed better adsorption efficiencies for Pb(II) and Cd(II) than the other three adsorbents (rice straw, sweet rice straw, and sugar cane bagasse). Adsorption activity on Pb(II) was: rice straw ≈ sweet rice straw > bagasse, while on Cd(II): sugar cane bagasse ≈ rice straw ≈ sweet rice straw. However, the adsorption capacities of the three types of adsorbent do not much lower than the activated carbon, where as the activated carbon is much costly. The higher the initial concentrations of Cd(II) and Pb(II) solutions, the lower % of metal adsorbed, even though the mg of metals adsorbed/g adsorbent increased.
STUDI AIR TANAH DI SEKITAR TEMPAT PEMBUANGAN AKHIR SAMPAH BANTAR GEBANG BEKASI JAWA BARAT Satrio Satrio
Purifikasi Vol 8 No 2 (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.i2.123

Abstract

Telah dilakukan penelitian air tanah di sekitar tempat pembuangan akhir (TPA) sampah Bantar Gebang Bekasi menggunakan metode isotop alam (18O, 2H dan 3H) dan dilengkapi data hidrokimia. Penelitian ini dilakukan dengan mengambil sejumlah sampel air lindi, air permukaan dan air tanah di sekitar TPA dengan tujuan untuk melihat sejauh mana pengaruh sanitary landfill terhadap air tanah di sekitarya. Hasil analisis isotop alam menunjukkan bahwa sebagian besar air tanah dangkal telah mengalami kontaminasi oleh zat pencemar yang berasal dari TPA yang sebarannya telah mencapai kira-kira 1 km dari lokasi TPA. Hasil ini didukung dengan data hidrokimia khususnya nitrat yang memperlihatkan kecenderungan yang hampir sama. Sedangkan air tanah akuifer dalam (>40 meter) tidak memperlihatkan adanya pengaruh dari zat pencemar yang berasal dari area TPA.
CAPAIAN PELAYANAN AIR BERSIH PERDESAAN SESUAI MILLENNIUM DEVELOPMENT GOALS – STUDI KASUS DI WILAYAH DAS BRANTAS Ali Masduqi
Purifikasi Vol 8 No 2 (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.i2.124

Abstract

The pipelined water supply services in rural areas of East Java Province in 2004 were 5.5%. This achievement must be improved to reach the Millennium Development Goals (MDGs) target. The target of the MDGs by 2015, is to reduce the proportion of people without sustainable access to safe water supply by 50%. In order to achieve the target, it is necessary to evaluate the constraints which may block the service achievement. This study was conducted in the Brantas River Basin, involving 360 rural water supply systems. Data obtained showed that the water services level in pipeline system in rural areas was only 8.60% in 2005. The achievement of services must be improved up to 40% in 2015, to meet the MDGs target. This target will be achieved if the construction of water supply facilities consider the constraints of poverty and lack of participations. If two constraints above are not controlled, the water supply services achievement will be only 26.2% in 2015.
PENGARUH PENGGUNAAN BAHAN BAKAR BIOETANOL TERHADAP EMISI GAS BUANG KENDARAAN BERMOTOR MESIN BENSIN (OTTO) PADA SIKLUS URBAN (UC) DAN EKSTRA URBAN (EUC) Puji Lestari
Purifikasi Vol 8 No 2 (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.i2.125

Abstract

Bio-ethanol is one of fuel alternatives which has several advantages when compared to gasoline. Bio-ethanol has recently been used for blended fuel because of the impact to the emission and engine performance (fuel consumption). It has low emission due to oxygenated fuel as well as high octane number, heat value, and volatility. In this study Bio-ethanol from sugar cane was used in the experiments. For this study, cars with Carburetor and Fuel Injection systems were tested using a chassis dynamometer and run according to the Euro 2 standard which has two cycles, urban cycles and extra urban cycles. Each car was tested three times using different type of blended fuels which were BE 0 (0% of bio-ethanol), BE 5 (5% bio-ethanol) and BE 10 (10% bio-ethanol). The results of the experiments show that emission concentration at Urban Cycle higher than Extra Urban Cycle. Blended fuel with bio-ethanol could reduce emission of Particulate, CO and CO2. Using blended fuel (bio-ethanol-gasoline) also could reduce fuel consumption for both types of cars. The emission reduction can be observed clearly for vehicle with carburetor technology.
KAJIAN KARAKTERISTIK HASIL PENGGALIAN TIMBUNAN SAMPAH DI TPA KOTA KEDIRI SEBAGAI KOMPOS harmin sulistyaning titah
Purifikasi Vol 8 No 2 (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.i2.126

Abstract

The municipal solid waste (MSW) generation rate in Kediri was 697,768 m3 per day. The operation period of Kediri’s final disposal site (FDS) is 3-4 years. This condition provides an idea to excavate the FDS as an effort of rehabilitation, and to evaluate the fine material quality as compost. Four sampling sites were selected in the study area: site I (1 m, 3 years old), site II (2 m, 3 years old), site III (1 m, 1 year old), and site IV (2 m, 1 year old). Each sample was separated, air dried, and sieved. The highest fine material component (66,5%) was found in sampling site II. The colour of this fine material was brownish black and the odor was like soil. Characteristics of compost from all sampling sites met the compost quality standard according to SNI 19-7030-2004. Some parameters; however, exceeded the standards. These parameters werer volatile solid (> 80%), carbon (45-47%), C/N ratio (33 – 40), and faecal coli (>1000 MPN/gr). Therefore, the fine material from Kediri’s FDS could not be used as compost. The compost quality was best in FDS age of more than 3 year old and excavated from a depth of more than 2 m.
PLASTIK RAMAH LINGKUNGAN DARI POLIKAPROLAKTON DAN PATI TAPIOKA DENGAN PENAMBAHAN REFINED BLEACHED AND DEODORIZED PALM OIL (RBDPO) SEBAGAI PEMLASTIS ALAMI Muhammad Hasan
Purifikasi Vol 8 No 2 (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.i2.127

Abstract

Telah disintesis plastik ramah lingkungan antara polikaprolakton (PCL) dan pati tapioka dengan menggunakan pemlastis alami dari minyak kelapa sawit. Penelitian ini bertujuan untuk mengetahui pengaruh penambahan minyak kelapa sawit, komposisi PCL dan pati tapioka terhadap karakteristik poliblend yang dihasilkan. Untuk mencapai sasaran tersebut, PCL disintesis dari -kaprolakton dan 2,2-dimetil-1,3-propanadiol dengan perbandingan mol 30/1. PCL hasil sintesis dan pati tapioka pada berbagai komposisi diblending secara fisik dan ditambahkan minyak kelapa sawit. Hasil penelitian menunjukkan bahwa PCL dapat disintesis dan struktur molekulnya ditentukan dengan NMR-1H, NMR-13C, dan FTIR. Berdasarkan ilustrasi difraktogram XRD, minyak kelapa sawit dapat menurunkan kristalinitas poliblend pada komposisi tertentu. Viskositas poliblend yang dihasilkan semakin menurun seiring dengan meningkatnya kandungan pati dalam campuran tersebut.
EKO-BRIKET DARI SAMPAH PLASTIK CAMPURAN DAN LIGNOSELULOSA Yulinah Trihadiningrum
Purifikasi Vol 8 No 2 (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.i2.128

Abstract

Penemuan energi alternatif hangat dibicarakan oleh masyarakat luas karena semakin menipisnya cadangan bahan bakar fosil. Di lain pihak permasalahan sampah kota tak bisa terelakkan. Sampah Kota Surabaya mengandung 72,4% (1560 ton/hari) sampah organik yang mengandung lignoselulosa dan sampah plastik sebesar 10,9% (265,52 ton/hari). Penelitian ini bertujuan untuk menetapkan komposisi dan karakterisasi eko-briket dari sampah plastik campuran dan lignoselulosa. Penelitian ini menggunakan 3 variabel, meliputi sampah plastik campuran, jenis sampah lignoselulosa (serbuk gergaji, sekam padi dan tempurung kelapa) serta ukuran lignoselulosa (40 dan 60 mesh). Parameter uji karakteristik mutu briket meliputi kadar air, kadar Volatile Solid (VS), kadar fixed carbon (FC), kadar abu, dan bulk density, nilai kalor, dan titik nyala. Pengujian parameter tersebut dilakukan di Laboratorium Jurusan Teknik Lingkungan, Teknik Mesin, Teknik Sipil dan Teknik Fisika. Hasil uji menunjukkan bahwa sampah plastik dan lignoselulosa dapat dibuat menjadi ekobriket dengan penambahan lem polyvinyl acetate (PVAc). Produk ekobriket terbaik adalah komposisi 20% plastik campuran dan 80% lignoselulosa tempurung kelapa (M20T40). Karakteristik mutu briket tersebut adalah: kadar air 12,79%, volatile solid 85,14%, fixed carbon 1,56%, kadar abu 0,64%, nilai kalori 8801,04 kalori/gram, bulk density 0,13 gram/cm3, dan titik nyala 131,8oC. Hasil tersebut sesuai dengan baku mutu Permen ESDM No. 47 tahun 2006 dan mampu dijadikan salah satu alternatif pemenuhan keterbatasan energi Indonesia.
PENENTUAN PENGARUH ALIH FUNGSI LAHAN TERHADAP DEBIT BANJIR MENGGUNAKAN SISTEM INFORMASI GEOGRAFI (SIG) Evi Kurniati
Purifikasi Vol 8 No 2 (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.i2.129

Abstract

The aim of this research was to model the flood discharge estimation caused by landuse change by using Geographical Information System (GIS). The research was conducted from May to August 2006 in Lesti Hulu watershed. The methods included three steps, comprising data (spatial and attribute) gathering in year 2000 and 2004, data processing, and validity test. The validity test was conducted using SIMODAS-ITB software. The biggest change was settlement areas that increase 9.21 %. The flood peaks n the same rainfall condition of 92.22 mm were 202.54 m3/sec in year 2000 and 208.66 m3/sec in year 2004. The model used in this research had a high accuracy. This statement was espoused by a simulated hydrograph, which was almost similar to observed hydrograph; with R2 values of 86.22% and 72.02% in years 2000 and 2004 respectively. The rational test showed that the ratio between direct v value of 2.402.775 m3 and modeled v value of 2.385.081,6 m3 was 0.993. This meant that the mathematical model for determining flood discharge using SIMODAS-ITB software was valid, and provided an accurate output.

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