تلخیص
Pollutants from industrial waste can pollute the river water and have a negative impact
in estuary ecosystem, changes in heavy metal content. One of the industries whose
waste contains heavy metals (Chromium, Cyanide, Copper, Zinc, Nickel, Lead and
Cadmium) is the electroplating industry. The purpose of this study is to calculate how
much the efficiency of Rhizophora apiculata mangrove plants in Zn metal removal
made from ZnSO4.7H2O artificial solution using laboratory scale reactor with the
batch system.
Plant acclimatization process has been done with Zn metal exposure test for seven
days using soil media without pollutants and using tap water. After the
acclimatization, preliminary test in the form of Range Finding Test (RFT) was
conducted. The results of the RFT were concentrations of 100 mg /L, 200 mg /L, 300
mg /L which were feasible to be used in the main study phase. The main study phase
was done by adding artificial solution into each tub of plastic reactor measuring 270
mm x 233 mm which has been filled with Rhizophora apiculata mangrove plant along
with soil media. Samples were taken every five days within 20 days, and Zn
concentration was measured using a spectrophotometer. The pH and temperature
measurements were intended to monitor whether the pH and temperature of the waste
water during the study were within the normal range for Rhizophora apiculata
growth.
Based on the result of the study, the efficiency of metal removal of Rhizophora
apiculata mangrove plant at a concentration of 100 mg/L was 89,83%, at concentration
200 mg/L the efficiency of metal removal was 84,92% and at the concentration 300
mg/L the efficiency of metal removal was 74,94%.
Mohammad Razif, Isbir Farhan. (2017) A removal of Zn metal concentrate using Rhizophora apiculata mangrove plants, Asian Journal of Agriculture and Biology, Volume 5, Issue 4.
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