Open AccessRemoval phospate-containing detergent wastewater by Mg–Al(NO3) layered double hydroxide
Author(s) -
Chairul Irawan,
A Ratmasari,
F Rizaldi,
Iryanti Fatyasari Nata,
Meilana Dharma Putra
Publication year - 2020
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.179
H-Index - 26
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/524/1/012007
Subject(s) - wastewater , adsorption , layered double hydroxides , phosphate , chemistry , hydroxide , nuclear chemistry , precipitation , particle size , chromatography , inorganic chemistry , environmental engineering , organic chemistry , physics , meteorology , engineering
Detergent wastewater contains high phosphate concentrations, so that if the wastewater is directly disposed of into a ditch or river then the wastewater can cause water pollution and eutrophication. Layered double hydroxides (LDHs) are synthetic materials with positively charged pyruvate type coatings of mixed metal hydroxides by chemical precipitation method. The purpose of this study is to find out the efficiency of Mg–Al(NO 3 ) LDH on phosphate-containing detergent wastewater adsorption. The morphological structure of LDH by the SEM-EDS analysis method shows a loose lamellar structure with a particle size of about 1 μm, and the composition of Mg–Al(NO 3 ) LDH by the XRF analysis method shows that the Mg and Al elements dominate more than other elements. Batch adsorption experimental conducted for detergent wastewater, which is where in this study the phosphate content was of ca. 51.50 mg / L. The equilibrium time of the adsorption process using Mg–Al(NO 3 ) LDH is achieved after 60 minutes. The mole ratio of Mg : Al composition of LDH in the adsorption process has slightly affects the decrease in phosphate shown by a mole ratio of 1 : 1, 2 : 1 and 3 : 1 using Mg–Al (NO 3 ) LDH as adsorbent at dose of 1 g, stirring rate of 100 rpm, 60 minutes, and at room temperature that is equal to 4.15 mg/L, 4.14 mg/L and 4.08 mg/L, respectively. Mg–Al(NO 3 ) LDH is a promising adsorbent for phosphate removal in detergent wastewater.