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All Journal Indonesian Journal of Chemistry

Agustin Sumartono

Centre for the Application Technology of Isotopes and Radiation, National Nuclear Energy Agency, Jl Cinere Pasar Jumat PO 7002 JKSKL Jakarta 12070

Author-ID : 3959043

Chemical Engineering, Chemistry & Bioengineering Chemistry

Published : 3 Documents Claim Missing Document

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Articles

THE USE OF TIO2-ZEOLIT AS A CATALYST ON THE DEGRADATION PROCESS OF ERIONIL RED DYE Agustin Sumartono; Winarti Andayani
Indonesian Journal of Chemistry Vol 7, No 2 (2007)
Publisher : Universitas Gadjah Mada

Degradation of erionil red dye using photo catalytic processes with TiO2-zeolit as a catalyst was carried out. Degradation of the dye was observed in 10 L volume, and erionil red dye was used as a model of organic pollutant. The parameters examinated were intensity of the spectrum, the decrease of pH, percentage of degradation, and the efectifity TiO2-zeolit as a catalyst. The use of UV lamp and TiO2-zeolit as a catalyst showed a good results because the dye could be degraded. This could be seen from the decreasing of the intensity of the spectrum 24 h after illumination. The pH of erionil red increased from around 4 into 5.5 which is still acidic. Effectivity of TiO2 composit as a catalyst could be used only two times. The compound resulted from degradation that could be detected using HPLC was oxalic acid.

THE ADDITION OF SOME COAGULANT AND VARIATION OF pH ON DEGRADATION OF TEXTILE WASTEWATER USING GAMMA RADIATION Agustin Sumartono; Winarti Andayani Lindu; Ermin K. Winarno
Indonesian Journal of Chemistry Vol 6, No 3 (2006)
Publisher : Universitas Gadjah Mada

The degradation and decolouration of textile waste water by gamma irradiation has been studied. Textile wastewater contain a mixture of dyes that difficult to degrade using conventional method, therefore it is necessary to find another method to degrade those dyes. Samples from effluent of textile industry were taken at certain time and have different in colour and condition. The addition of coagulant and radiation to remove the colour of the samples were demonstrated. Four kind of treatments were carried out in this experiment namely addition of coagulant, radiation, variation of pH and radiation, and combination of radiation with the addition of coagulant. The parameters examined were the change of spectra intensity, percentage of sedimentation after the addition of coagulant, and the percentage of the degradation. Combination of irradiation and the addition of coagulant induced decolouration and degradation of the waste.

DISTRIBUTION OF SURFACTANT AND PHENOL IN COASTAL WATERS OF JAKARTA GULF Ermin K. Winarno; Winarti Andayani; Agustin Sumartono
Indonesian Journal of Chemistry Vol 6, No 3 (2006)
Publisher : Universitas Gadjah Mada

The investigation of the anionic surfactant and phenol contamination in sea water of Jakarta Gulf was carried out. The sea water samples in Jakarta Gulf were collected in May 2004 at 21 stations (sampling sites). The monitoring results indicated that the anionic surfactants were detected in sea water samples from 20 stations with the low varied level from 0.276 mg/L to 0.779 mg/L. The anionic surfactant at the station 21 was detected with the highest value, it was 1.202 mg/L. The phenol pollutants in sea water samples from 16 stations were detected with higher level than permitted concentration for sea water, while the samples from 5 stations were not detected. The phenol concentration in sea water samples were varied from 0.009 mg/L to 1.364 mg/L.

Co-Authors Ermin K. Winarno Ermin K. Winarno Winarti Andayani Winarti Andayani Winarti Andayani Lindu

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