Rudy Syah Putra

Universitas Islam Indonesia | UII · Department of Chemistry

Pidato pengukuhan jabatan Profesor Bidang Analisis Elektrokimia dan Remediasi Lingkungan, Auditorium Prof. Abdul Khahar Muzzakir, Universitas Islam Indonesia, !9 Desember 2023

Abstrak Telah dilakukan penelitian pengolahan limbah air lindi menggunakan proses Elektro-Bio (EB) yaitu pengolahan limbah air lindi dengan proses elektroflotasi dengan bantuan koagulan alami. Koagulan alami yang digunakan yaitu Kacang arab (K.A) dengan variasi dosis sebesar 0,025; 0,05; 0,1; 0,15; 0,2 dan 0,25 g/500 mL. Proses elektroflotasi dilak...

Abstrak Biomassa merupakan sumber energi terbarukan untuk produksi energi listrik. Kandungan selulosa yang relatif tinggi dalam kayu sengon dan jati berpotensi sebagai bahan baku produksi energi listrik yang baik. Meskipun pendekatan termokimia (pirolisis dan gasifikasi) telah praktis digunakan untuk menghasilkan energi listrik, namun proses ini me...

The enhancement process of electro-flotation was evaluated to treat chemical laboratory wastewater. Wastewater treatment was carried out using electro-flotation with adding a natural coagulant agent namely papaya seed (Carica papaya). In this work the electro-flotation batch system using stainless steel as cathode and graphite as an anode was evalu...

To Aftermath of Tsunami tragedy at Japan on 2011, the catastrophic failure of the Fukushima I Nuclear Power Plant reactor resulted, release amount of radioactive caesium into the environment. In this study, non-polluted soil sample from Kotagede, Yogyakarta, Indonesia which has similar characteristic with Fukushima soil was prepared by artificially...

Turbidity is removed by adding a chemical coagulant, which produces a secondary toxic of alumina residues in the water. Therefore, the aim of study was to evaluate the coagulation activity of NaCl extract from Leucaena leucocephala and Sesbania grandiflora seeds on the removal of turbidity for water purification. The proximate composition of the se...

The combination of electro-enhanced and hydroponic phytoremediation hereinafter referred to as electro-enhanced phytoremediation (EP) system, has been employed for rapid removal of trace metal concentration of lead (II) from contaminated water using Kentucky bluegrass (Poa pratensis L.) as accumulator plant. In this study, for rapid assessment the...

Leachate landfill treatment has been studied using the combination of electroflotation and bio-coagulant (EB) with Tamarind seed (Tamarindus indica) by varying doses of 0.025, 0.05, 0.1, 0.15, 0.2 g/500 mL. The electroflotation was performed by stainless steel as cathode and titanium as anode electrode at a DC constant voltage of 40V for 30 minutes...

Biocoagulation process using jackfruit seed (Artocarpus heterophyllus L.) with 150 mesh as a biocoagulant on the wastewater treatment of chemical laboratory has been carried out. The jackfruit seed in the doses of 0.25, 0.50, 0.75, 1.0, dan 1.25 g/500 mL was used to treat the wastewater of the chemical laboratory. The effectiveness of the biocoagul...

Batik wastewater from dyeing processing is a source of water pollutants containing dyes, organic compounds such as starch, wax residue, and soda ash. Natural coagulants, namely Turi seeds (Sesbania grandiflora) with various doses of 0.5, 0.75, 1.0, 1.25, 1.50, 1.75, and 2.0 g, affect the pH, electrical conductivity EC, total dissolved solid TDS, tu...

In this chapter, four different types of pollution problems in four countries are introduced. These are pollution with mercury by small-scale gold mining activities in Indonesia, pollution with nitrobenzene in the Songhua River in China, salt damages in Bangladesh, and soil contamination with lead in railroad stations in Japan. Some authors actuall...

Electrokinetic (EK) remediation is an in situ soil treatment technology that applies electric fields such as electromigration and electroosmotic flow (EOF). This technology is advantageous for environmental remediation applications in two ways. First, electromigration and EOF are limited between electrodes, such that the treatment area is easy to c...

The enhancement process of electro-flotation was evaluated to treat chemical laboratory wastewater. Wastewater treatment was carried out using electro-flotation with adding a natural coagulant agent namely papaya seed ( Carica papaya ). In this work the electro-flotation batch system using stainless steel as cathode and graphite as an anode was eva...

The electrokinetic remediation of artificially silver (Ag) contaminated soils was evaluated. In this study, the soil sample was taken from locations A and C near silver handicraft workshop assuming has similar natural geochemistry with silver contaminated soil. While control soil was taken from locations B and D at Kotagede, Yogyakarta, Indonesia....

This study was aimed at investigating the effect of electro-assisted and double aeration (EAPR-DA) system to enhance the lead removal in water and uptake by Pakcoy ( Brassica rapa subsp. Chinensis ). Variable regimes were created by 2 V of constant DC voltage using 2 D stainless steel cathode-pot and Ti anode electrode, and aeration level of 10 L/m...

The simultaneous of electroflotation and biocoagulation performance using mung bean flour (Vigna radiata) with 250 mesh as a natural coagulant on the treatment of peat water has been carried out. The electroflotation was carried out using graphite as anode and stainless steel as a cathode electrode with a DC constant voltage of 20 V for 30 mins ope...

An evaluation of the combination of electroflotation-biocoagulation performance using Aloe vera as biocoagulant in the treatment of river water has been conducted. Titanium electrodes were used as anode and stainless as cathode in the electroflotation reactor, with a 20 V DC of constant voltage for 30 minutes. The parameter dose of Aloe vera was 1....

In this study, the performance of papaya seeds (Carica papaya) as biocoagulant was evaluated using Batik wastewater which referred to the water sample. The effectiveness of particle size and dosage of papaya seeds were evaluated based on turbidity removal (%), total dissolved solids (TDS), and electrical conductivity (EC). The Tyndall effect of cle...

In this study, the combined biocoagulation electroflotation process using Musa acuminate peel coagulant was evaluated using chemical laboratory wastewater as water sample. The effectiveness of the combined biocoagulation electroflotation process was seen based on the proportion of turbidity removal (%) and the proportion of TDS removal (%). The res...

The removal of cesium from artificially contaminated soil using electrokinetic remediation with nitric and acetic acid as electrolytes had been evaluated. In this study, uncontaminated soil was taken from four different sampling points (i.e., A, B, C, and D) in Kotagede, Yogyakarta, Indonesia. All samples were prepared as cesium contaminated soil (...

Nanocomposites of tin oxide immobilized in montmorillonite (Mt) with various Sn/Mt. mole-to-mass ratios were prepared for photocatalysis application. The prepared samples were characterized by x-ray diffraction, transmission electron microscopy, N2 adsorption–desorption analysis, and diffuse reflectance UV–visible spectroscopy. The relationships be...

River water polluted by garbage is a problem for residents around the river. This has a negative impact on human survival, especially in health. The process of coagulation and flocculation is a common method used in the water treatment process. Coagulants used in this study were chemical coagulants i.e. PAC as reference of chemical coagulant and bi...

Wastewater treatment from chemical laboratory using electroflotation-biocoagulation (EB), that is the enhancement of electroflotation process using biocoagulants has been evaluated. The electroflotation was performed by graphite electrode as anode and stainless steel as cathode at DC constant voltage of 21 V for 60 min. Biocoagulant used in this st...

Heavy metals cannot be degraded and destroyed, so remediation process is needed. An alternative effort is using the electro-assisted phytoremediation (EAPR). The plant triggered electrically, the absorption rate of pollutant increased progressively by the plant so that the accumulation of pollutants became faster than natural situation causes the p...

The aims of the study are to identify the effectiveness of wastewater treatment from the Batik industry using a simultaneous of electrocoagulation (EC) and electro-assisted phytoremediation (EAPR). Rough horsetail (Equisetum hyemale) was used as an accumulator plant in the EAPR system. Electrocoagulation was conducted for 1 h at a constant voltage...

In this study the performance of biocoagulant based on protein ( Moringa oleifera, Vigna sinensi ) and tannin ( Colocasie esculenta ) was compared with Poly Alumunium Chloride (PAC) as a chemical coagulant have been evaluated using a synthetic kaolinite-turbid water which referred to water sample. The effectiveness of biocoagulants dosage were eval...

This study was aimed to determine the effect of electro-assisted and oxygen injection system to improve the effectiveness of the copper and iron removal in wastewater by phytoremediation system. The electro-assisted phytoremediation (EAPR) system was run with Vetiver grass (Vetiveira zizanioides L) as accumulator plant and 2 V of constant DC power...

Biomass oil palm empty fruit bunch (OPEFB) is a sustainable source for hydrogen production. OPEFB and FeCl3.6H2O oxidizers (0.1, 0.2, 0.3 and 0.4 mol) were refluxed at 90-98 ° C for 5 hours. The acquired aliquot was used to produce H2 with variation of storage time (fresh aliquot and old aliquot). The production of H2 was carried out by electrolysi...

Abstrak Telah dilakukan penelitian tentang pemanfaatan tanaman akar wangi (Vetiveira zizaniodes L) sebagai tanaman akumulator pada remediasi air limbah logam berat Pb dan Fe dengan metode ERASI (Electro Assisted Phytoremediation-Aeration). Metode ini merupakan gabungan proses fitoremediasi dengan bantuan listrik yang dialirkan melalui elektroda unt...

Abstrak Bahan bakar biodiesel yang terdiri dari metil ester dapat diproduksi dari minyak nabati dan hewani dengan proses metanolisis. Biodiesel menjadi energi alternatif yang menjanjikan karena ramah lingkungan, nilainya ekonomis, memiliki daya pelumas yang tinggi, aman dan tidak beracun. Sintesis biodiesel pada penelitian ini dilakukan dengan gabu...

The garbage disposal management using landfill system produces an unpleasant odor of wastewater (i.e. leachate) which can disrupt the groundwater equilibrium in the rainy season. The combination of electro-assisted and phytoremediation which is hereinafter referred as Electro-Assisted Phytoremediation (EAPR) for removal of heavy metals from leachat...

A novel solid acid catalyst, which was prepared from sodium alginate and aluminum chlorides and characterized by SEM-EDS, XRD and FT-IR spectrometry. The catalyst was used for the synthesis of fatty acid methyl ester (FAME) via (trans)esterification reaction using electrolysis process. Purity and FAME components of biodiesel were measured by GC-MS....

The performance of treated kaolinite obtained from three types treatment that was calcination at 600 °C (K600), 800 °C (K800) and acid treated of K800 (KA800). All catalysts were tested for their catalytic activity via electrolysis process through (trans)esterification of soy bean oil at room temperature. X-ray diffraction (XRD) and Fourier transfo...

Kegiatan industri, pertanian, dan pertambangan semakin meningkat sehingga pencemaran logam berat pada air menjadi persoalan penting secara global yang membutuhkan perhatian khusus. Salah satu sumber pencemar diperairan adalah logam berat karena memiliki sifat yang stabil dan sulit untuk didegradasi, sehingga perlu dilakukan tindakan remediasi. Sala...

Pada penelitian ini pengabuan ilalang dilakukan pada suhu 900°C selama 8 jam dan digunakan sebagai katalis basa pada pembuatan biodiesel yang dilakukan dengan proses elektrokatalitik menggunakan elektrode grafit dengan tegangan DC 18,2 V. Proses elektrokatalitik campuran minyak jelantah, metanol dan katalis abu ilalang (2, 3 dan 5% berat katalis te...

The conversion of fatty acid methyl ester (FAME) from soybean oil with a carbon@chitosan composite as alkaline catalyst using electrolysis process had been investigated. The carbon was added onto chitosan through sol-gel method. Carbon material@chitosan, featured with high electrical conductivity and large surface area and Scanning electron microsc...

The nature of the consumerist society of Indonesia with regard to the use of petroleum oil has increased. However, it is not comparable with the figures for petroleum reserves in natural deposits. Therefore, the problem has encouraged the Indonesia to be able to find an alternative new and renewable energy that is biodiesel. In this study, the biod...

The EAPR process using water hyacinth (Eichornia crassipes) on the wastewater treatment of chemical laboratory had been evaluated. The purpose of the EAPR process was to decrease the BOD, COD and heavy metal concentration in the wastewater. The effectiveness of the process on the wastewater treatment was evaluated using COD, BOD, and heavy metal (P...

The production of biodiesel from used-cooking oil using the enhancement of electrolysis process with chitosan-gel (i.e. hydrogel and xerogel) as a base catalyst had been investigated. Previously, the optimized variables were evaluated by using soybean oil as a feedstock before using used-cooking oil on the biodiesel production. Biodiesel yield was...

The research aimed to evaluate of lead (Pb) and copper (Cu) absorption using water hyacinth [Eichhornia crassipes (Mart.) Solms] with the enhancement by the EAPR (electro-assisted phytoremediation) method. Lead (Pb) and copper (Cu) was used in this research as a heavy metal model which was remediated for 7 d of wastewater treatment. The application...

The conversion of fatty acid methyl ester from used cooking oil with a organocatalyst chitosan by using electrolysis process had been investigated. Fatty acid methyl ester yield was influenced by electrolysis time (2 h, 4 h, and 6 h), chitosan mass ratio (5 wt. %, 10 wt. % and 15 wt. %), co-solvent type (i.e. Tween 80 and Tetrahydrofuran) and metha...

The combination used electro-assisted system and hydroponic phytoremediation which is hereinafter referred as hydroponic EAPR system for rapid removal of Pb2+ and Cu2+ from contaminated water which has been demonstrated in a laboratory-scale experiment. A hydroponic setting was used to evaluate the potential rapid removal and uptake of lead and cop...

Agar matrix was artificially contaminated with caesium and subjected to rapid assessment of electrokinetic treatment on the basis of 2D electrode configuration. The effect of caesium concentration on the process was investigated using different electrode configuration (i.e. rectangular, hexagonal and triangular). During treatment the in situ pH dis...

Abstrak-Penelitian ini bertujuan untuk mengidentifikasi efektifitas pengolahan limbah batik dengan penggabungan metode elektrokoagulasi dan electro-assisted phytoremediation (EAPR) elektroda sistem koloni dengan menggunakan tanaman bambu air (Equisetum hyemale) sebagai tanaman pengumpul. Waktu elektrokoagulasi berlangsung selama 1 jam dengan tegang...

Penelitian ini bertujuan untuk membandingkan efektifitas remidiasi logam Cu antara metode electro-assisted phytoremediation (EAPR) dan proses fitoremediasi dengan menggunakan tanaman eceng gondok (Eichornia crassipes) sebagai tanaman pengumpul. Waktu remidiasi berlangsung selama 7 hari dengan tegangan sebesar 2 volt untuk 15 liter larutan. Peneliti...

The combination used electro-assisted system and hydroponic phytoremediation which is referred later on as hydroponic EAPR system for rapid removal of Pb2+ and Cu2+ from contaminated water has been demonstrated in a laboratory-scale experiment. A hydroponic setting was used to evaluate the potential rapid removal and uptake of lead and copper conce...

The conversion of methyl ester (ME) from used frying oil with a basic heterogeneous catalyst chitosan by using electrolytic process had been investigated. ME yield was evaluated by using non-polar and polar of co-solvent type (i.e. Tween 80 and THF). The evaluation of the process was followed by GC-MS to determine the ME. The results show that the...

Minyak nabati (red. Minyak jelantah) merupakan sumber bahan baku yang menjanjikan bagi proses produksi biodiesel karena bersifat renewable, dapat diproduksi dalam skala besar dan ramah lingkungan [1]. Upaya untuk memproduksi biodiesel dari bahan baku minyak jelantah merupakan langkah cerdas yang memberikan tiga keuntungan sekaligus yaitu: nilainya...

Many low-cost feedstock i.e. used-cooking oil (UCO) for the production of biodiesel fuel (BDF) has contained a large amount of water and high proportion of free fatty acids (FFAs). Therefore, a pre-treatment process to reduce the water content (<0.1 wt.%) and FFAs (<2.0 wt.%) were necessary in order to avoid an undesirable side reactions, such as s...

a b s t r a c t The combined use of electrokinetic remediation and phytoremediation (i.e. electro-assisted phytoreme-diation, EAPR) to remove lead from contaminated sandy soil and uptake by Kentucky bluegrass (Poa pratensis L.) has been demonstrated in a laboratory-scale experiment. The effectiveness of two dimen-sions (2D) of electrode configurati...

Isotope analysis of lead in fractions (1-5), fractionated by a sequential extraction procedure for contaminated soil found in the ground of Asahikawa and Iwamizawa stations of Hokkaido Railroad Company (JR Hokkaido), have been carried out. The amounts of lead in fractions 3 and 4 were relatively larger than that in the other fractions. The lead iso...

The usefulness of the combined electrokinetic (EK) remediation with aluminum drinking water treatment residuals (Al-WTRs) as an entrapping zone (EZ) for removal of lead ion from artificially contaminated soil was demonstrated. Laboratory experiments were performed with variable conditions including (i) type of Al-WTRs materials and the application...