Hari Rudijanto Indro Wardono, Hari Rudijanto
Environmental Health Department, Polytechnic Health Ministry of Semarang

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The Use of mono cylinder in decreasing level of dust Indro Wardono, Hari Rudijanto; Cahyono, Tri; Budiono, Zaeni
Jurnal Riset Kesehatan Vol 3, No 3 (2014): September 2014
Publisher : UPPM Politeknik Kesehatan Kementrian Kesehatan Semarang

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Abstract

This research is quacy experiment with 2 factorial design used Random Complete Block Design, which made only limited where each treatments has the same intensity or dose. The number of samples is 108 samples. Data analysis using One Way Anova and LSD. It  can be concluded that mono cylinder 100 cm high can reduce dust levels on average 56.21%, mono cylinder 75 cm average 35.41% and mono-cylinder 50 cm average 33.53%. Structure ARSPSE (Active Charcoal-Spon-Coconut fibers) can reduce levels of dust for average - 46.51%. One Way ANOVA test showed there were significant differences reduction in dust levels with varying heights mono cylinder (sig 0.015 <0.05). The resut suggested that the perpetrators of domestic industries using flue mono-cylinder combustion process and for further research can be modified tools ,materials and used water resirculation system as well as gas and to decrease air pollutants such as SOx, HC.
The Use of mono cylinder in decreasing level of dust Indro Wardono, Hari Rudijanto; Cahyono, Tri; Budiono, Zaeni
Jurnal Riset Kesehatan Vol 2, No 1 (2013): Januari 2013
Publisher : UPPM Politeknik Kesehatan Kementrian Kesehatan Semarang

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Abstract

This research is quacy experiment with 2 factorial design used Random Complete Block Design, which made only limited where each treatments has the same intensity or dose. The number of samples is 108 samples. Data analysis using One Way Anova and LSD. It  can be concluded that mono cylinder 100 cm high can reduce dust levels on average 56.21%, mono cylinder 75 cm average 35.41% and mono-cylinder 50 cm average 33.53%. Structure ARSPSE (Active Charcoal-Spon-Coconut fibers) can reduce levels of dust for average - 46.51%. One Way ANOVA test showed there were significant differences reduction in dust levels with varying heights mono cylinder (sig 0.015 <0.05). The resut suggested that the perpetrators of domestic industries using flue mono-cylinder combustion process and for further research can be modified tools ,materials and used water resirculation system as well as gas and to decrease air pollutants such as SOx, HC.
The Use of ion Plasmaclsuter in Decreasing level of Fe in Clean Water Cahyono, Tri; Indro Wardono, Hari Rudijanto; Gunawan, Asep Tata
Jurnal Riset Kesehatan Vol 3, No 3 (2014): September 2014
Publisher : UPPM Politeknik Kesehatan Kementrian Kesehatan Semarang

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Abstract

The purpose of this research describe the difference of decreasing level of Fe between the well water before and after ionized. This type of research is pre-experimental, with design and pre-test post-test group design. The well water is collected in drum of 200 liter and given a cover. With the pump, water sprayed through a nozzle in a basin of aeration (control). The treatment group, using plasmacluster ion generator. Each replication three times. Data Analysis with One Sample Test and ANOVA. The measurement result  for the Fe content of the one nozzle control the average 0.617 mg / l, two nozzle 0.640 mg / l, three nozzle 0.639 mg / l and four nozzle 0.635 mg / l. Treatment group (ionization plasmacluster), the one nozzle average 0.571 mg / l, two nozzle 0.581 mg / l, three nozzle 0.573 mg / l and four nozzle 0.587 mg / l. Analized test with One Sample Test showed the significant difference (0.000 and 0.001 <0.05) with plasmacluster use of ionization in decreased levels of iron (Fe) and just well water with  using aeration. That were significant difference before (0.000) and after (0.001) uses plasmacluster ion in decreasing level of Fe well water (<0.05). The recomendation researcher  measured levels of early oxygen, the color before and after the ionization process.