Article Per Year (5 Year)
p-Index From 2021 - 2026
0.408
P-Index
This Author published in this journals
All Journal Berkala Penelitian Teknologi Kulit, Sepatu, dan Produk Kulit
Ragil Yuliatmo
Department of Leather Processing Technology, Politeknik ATK Yogyakarta, 55188, Special Distric of Yogyakarta, Indonesia

Published : 2 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 2 Documents
Search

 1 
OPTIMIZATION OF POLY ALUMUNIUM CLORIDE (PAC) DOSAGE FOR TANNERY WASTE TREATMENT IN COAGULATION-FLOCULATION PROCESS Nanda Brilian Tantri; Swatika Juhana; Ragil Yuliatmo
Berkala Penelitian Teknologi Kulit, Sepatu, dan Produk Kulit Vol. 22 No. 1 (2023): Berkala Penelitian Kulit, Sepatu dan Produk Kulit
Publisher : Politek ATK Yogyakarta Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58533/cysq2360

Abstract

The purpose of this study was to determine the optimum dose of PAC coagulant in the treatment of tannery waste in the coagulation-flocculation process. The research was conducted using the jar test method to treat leather tanning wastewater by coagulation-flocculation. Coagulation was carried out with various doses of PAC coagulant 1%, 2%, 3%, 4%, and 5% each of which 5 mL was put into a beaker containing 300 mL of tannery wastewater. Coagulation was carried out with rapid stirring at 100 rpm for 1 minute. Then flocculated using 1% basefloc polyelectrolyte 3 mL each. Flocculation with slow stirring at 25 rpm for 15 minutes. The results of the jar test were measured for turbidity, pH, and the type of floc. The results showed that the optimum dose of PAC coagulant to treat leather tanning waste was 5 mL PAC 2% for a waste volume of 300 mL, at pH 7. This result can be converted into grams of PAC/waste volume, namely 0.1 grams of PAC/300 mL of waste or 0.33 grams of PAC/1L of leather tanning liquid waste.
EFFECT OF FeCl3 COAGULAN DOSAGE ON DECREASING TURBIDITY OF LEATHER TANNERY WASTE PROCESSING Nanda Brilian Tantri; Swatika Juhana; Ragil Yuliatmo
Berkala Penelitian Teknologi Kulit, Sepatu, dan Produk Kulit Vol. 22 No. 2 (2023): Berkala Penelitian Kulit, Sepatu dan Produk Kulit
Publisher : Politek ATK Yogyakarta Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58533/bpfcjx20

Abstract

The leather tanning industry is one of the industries that produces liquid waste. The liquid waste of the leather tanning industry contains pollutants with a high level of turbidity. This research was conducted to determine variations in the dose of FeCl3 as a coagulant to reduce the turbidity of leather tanning wastewater. The coagulant added was 5 mL of FeCl3 with various doses of 1%, 2%, 3%, 4% and 5%. The optimum dose of FeCl3 coagulant to treat 300 mL of liquid waste is 3% with a volume of 5 mL, which means that 500 mg/L or 500 ppm is needed. The results showed a decrease in turbidity at the optimum dose was 94%, a decrease in chromium content of 83,53%. This shows that the effect of FeCl3 on reducing total chromium content and turbidity gives quite good results.
Co-Authors Nanda Brilian Tantri Swatika Juhana