Application of the Composite Hydrotalcite (Mg/Al)/Chitosan as Adsorbent for the Treatment of Raw Water of Municipal Waterworks PDAM Bandarmasih

Maulana Wahyu Noor Ramadhan,Chairul Irawan,Muthia Elma,Hesti Wijayanti

doi:10.20527/jwem.v7i1.197

Maulana Wahyu Noor Ramadhan, Chairul Irawan + Show 2 more

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https://doi.org/10.20527/jwem.v7i1.197

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Abstract

Research has been carried out about raw water treatment of PDAM Bandarmasih by hydrotalcite (Mg/Al) + chitosan (shell of haruan and papuyu fish) adsorbent reviews of decreasing dye value (PtCo), iron (Fe), and turbidity. This research intended to produce drinking water from utilization of fish shell that were still underutilized into chitosan to be matched with hydrotalcite (Mg/Al) with variations of 1, 2 and 3 grams with a duration of 24 hours. The results showed that the decrease in dyestuff value were 96.78%, 95.03% and 92.98%. Persentage decrease in iron (Fe) were 94.38%, 93.78 and 91.87% and percent of turbidity reduction were 97.98%, 79.76% and 76.56%. Best decrease in variations of hydrotalcite (Mg/Al) + chitosan was 1 gram for a duration of 24 hours which resulted in a decrease in dyestuff, iron and turbidity of 11 PtCo, 0.047 mg/L, 0.76 NTU where the results were appropriate in the drinking water requirements in accordance with the Regulation of the Minister of Health of the Republic of Indonesia no:492/MENKES/PES/IV/2010.

Highlights

The human population in South Kalimantan according to Badan Pusat Statistik in 2016 is around 4 million, while for Banjarbaru the community is almost 250 thousand, resulting in a problem, one of which is liquid waste
Indonesia is famous for its maritime country because the sea area is more than the plain, so it is rich in marine products, especially fish, for example in Banjarmasin which is famous for 1000 rivers and wetlands where wetlands are used to cultivate fish primarily local fish (Haruan and Papuyu)
The SEM results in figure 2 shown that the composite of hydrotalcite/chitosan pores are more than the chitosan pores itself and the hydrotalcite+chitosan is smoother on the surface, so hydrotalcite+chitosan is better in the absorption process than chitosan

Summary

Introduction

The human population in South Kalimantan according to Badan Pusat Statistik in 2016 is around 4 million, while for Banjarbaru the community is almost 250 thousand, resulting in a problem, one of which is liquid waste. Many researchers had been researched adsorption mainly with hydrotalcite because it has a large surface area and it has a synergistic effect between layers so that it attracts the interest of researchers. Heraldy et al research (2012) found that the utilization of PLTU distillation waste for the manufacture of Mg/Al hydrotalcite of methyl orange (MO) adsorption resulted in a MO adsorption rate of 7.30x10-4 seconds. Imaniah (2016) has researched the comparison of Mg/Al-NO3 hydrotalcite-magnetic composites (HT-M) and Mg/Al-NO3 hydrotalcite-magnetic calcination as adsorbent to eliminate remazol yellow dye, where the result was HT-M optimum adsorbed dyes as much as 7.67x10-5 mol/gram at pH 4 with a reaction time of 90 minutes and HT-MKAL of dyestuffs which optimum adsorption was 7.74x10-5 mol/gram at pH 3 within 90 minutes. The chitosan is used as an adsorbent to deal with the PDAM Bandarmasih raw water problem in

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