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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.
Arjuna Subject : -
Articles 15 Documents
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Search results for , issue "Vol 7 No 2 (2006): Jurnal Purifikasi" : 15 Documents clear
STABILISASI LOGAM BERAT DALAM SLUDGE DAN EFEKTIFITAS PENGGUNAANNYA PADA PEMBUATAN BATAKO Lieke Riadia
Purifikasi Vol 7 No 2 (2006): 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.v7.i2.255

Abstract

Sludge, which contains heavy metals, may pose hazard to the environment due to possibility of groundwater contamination from heavy metal leaching. Heavy metals in sludge can be stabilized using certain stabilizing agents. This study utilizes sludge from industrial wastewater treatment plant. Three stabilizing agents (CAO, brown sugar and sodium sulfide) are used in this study to stabilize heavy metals (Cu, Fe, Ni, and Zn) contained in sludge. The result of the study shows that brown sugar can be used to stabilize Fe up to 82%. CAO is the most effective stabilizing agent for Cu and Zn. CAO also shows the highest capacity to bind Ni compared to brown sugar and sodium sulfide. CAO can stabilize 95% Cu, 67% Ni, and 98% Zn. The concentration of stabilizing agent does not affect significantly to the effectiveness of stabilizing agents in binding heavy metals. The stabilized sludge can be used as raw material to produce brick as a mixture of cement and sand. The maximum sludge concentration that can be added as sand replacement is 10% w/w based on the result of compressive strength test.
UJI INTERAKSI KIMIAWI PADA PROSES SORPSI ESCHERICHIA COLI DALAM KONDISI JENUH Yunus Fransiscus
Purifikasi Vol 7 No 2 (2006): 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.v7.i2.256

Abstract

A study to describe the sorption characteristic of Escherichia coli was carried out in dynamic column experiments. Iron coated sand was used as the collector and phosphate was used to evaluate the attachment mechanism. The hypothesis that ligand exchange played significant role in the attachment mechanism was supported by observation of several phenomena: pH increase during the process, less detachment during the desorption, no significant effect of ionic strength and pH of the solution, and less attachment of E. coli in competition with phosphate. However, from the breakthrough curves it was indicated that ligand exchange was not the only process involved. The results gave an indication that bacterial retention in solid-liquid interface can be explained beyond the DLVO theory.
PEMBUATAN KOMPOS LIMBAH NENAS DENGAN MENGGUNAKAN BERBAGAI BAHAN AKTIVATOR sriharti sriharti
Purifikasi Vol 7 No 2 (2006): 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.v7.i2.257

Abstract

In order to utilize pineapple waste, compost production is one of the alternatives. The compost can be used as soil conditioner. The compost was made in a plastic drum of 50 L capacity. Various activators were applied to speed up the composting process this experiment. The activators used were Green Phosko bioaktifator, EM4 and Agrisimba. Each treatment was performed three times. Results of this experiment showed that utilization of these activators had no significant influence to temperature, time of composting process and the product quality. Quality of the compost produced by using EM4 and Agrisimba activators met the Indonesian National Standard (SNI) for pH, moisture content, C-organic, total nitrogen, C/N ratio values, and P2O5, K2O, CaO, Fe, Mn, Zn concentrations. However, the compost produced by Green Phosko Bioactivator treatment did not meet the SNI for pH value, and MgO and Al concentrations.
POTENSI KOMPOS SEBAGAI MEDIA PENUKAR ION UNTUK MEREDUKSI LOGAM BERAT DALAM AIR LIMBAH Joni Hermana
Purifikasi Vol 7 No 2 (2006): 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.v7.i2.258

Abstract

Potensi kompos dari sampah Kota Surabaya sebagai media penukar ion diperkirakan cukup menjanjikan mengingat komposisinya yang sebagian besar terdiri atas daun-daunan, sehingga kandungan humusnya akan cukup besar. Kandungan humus dalam kompos berperan dalam proses pertukaran kation logam berat dalam air limbah, dengan kation-kation logam yang lebih ‘ringan’ yang ada dalam kompos. Percobaan dilakukan secara batch dan kontinyu. Percobaan batch dilakukan untuk mengetahui pengaruh variabel konsentrasi awal Cu, dosis kompos dan waktu kontak terhadap proses removal logam berat oleh kompos. Data percobaan batch digunakan untuk studi kesetimbangan dan kinetika proses yang terjadi. Sedangkan percobaan kontinyu pada reaktor kolom, digunakan untuk mendapatkan kapasitas operasinya. Percobaan dilakukan dengan air limbah buatan yang mengandung CuSO4. Hasil yang didapat menunjukkan adanya potensi yang menjanjikan, dimana x/m maksimum dapat terjadi sampai sebesar 22,46 mg/g atau 70,7 meq/100g dan kapasitas operasi sebesar 249,129 meq/L. Selama percobaan yang dilaksanakan sekitar 2,5 jam, reaksi cenderung terjadi mengikuti model isotermis Langmuir dan laju reaksi orde 2.
STUDI PERBANDINGAN PENGGUNAAN KARBON AKTIF TEMPURUNG KEMIRI DENGAN KARBON AKTIF KOMERSIAL DALAM SOLIDIFIKASI Cr(VI) Yusie Rossita
Purifikasi Vol 7 No 2 (2006): 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.v7.i2.259

Abstract

This research compared the influence of composition variations of commercial and nutmeg shell activated carbons in solubilisation/stabilization (S/S) process of Cr(VI) artificial liquid waste. The dry weight variations of portland cement+fly ash and activated carbon were of 97%:3%, 94%:6%, 91%:9%. The S/S specimens were soaked in acetate buffer pH 2 solution with time variations of 0, 7, 14 and 28 days. Research data showed that activated carbon, could decrease the Cr(VI) leaching until ±70,5% and increased the compressive strength. The use of nutmeg shell activated carbon showed better performance of S/S products than those of commercial activated carbon. The weight composition variations in every type of activated carbon used, did not influence the compressive strength test results and leachability of Cr(VI). Addition of 3% of activated carbon represented the most economical composition with acceptable results of Toxicity Characteristic Leaching Procedure (TCLP) and compressive strength tests.

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