BIO-ADSORPTION PROCESS USING CARICA SEED TO REDUCE WATER TURBIDITY FROM LINGGI RIVER
Main article
Abstract
This study examined natural adsorbent (papaya seed) in reducing turbidity from Linggi River. The natural adsorbent, papaya (carica) seed was grinded in powder form. Adsorption test was conducted to test the turbidity of the water sample through a jar test. The optimum dosage of papaya seed powder was identified in order to obtain the optimum turbidity removal. The effectiveness of papaya seed on the adsorption process was compared with chemical alum which was an aluminium sulfate solution. 6L of water samples from Linggi River were collected in December 2019 per batch. There were three batches in total. Interval dosage of papaya seed powder was 40 mg/L which started from 40 mg/L, 80 mg/L, 120 mg/L, 160 mg/L and 200 mg/L. Aluminium sulfate was added 10 mg/L in the first beaker jar test to be compared with papaya seed in reducing the turbidity level. The average turbidity of water samples from Linggi River was 81.7 NTU before the test. The lowest turbidity value was 3.95 NTU with the optimum dosage of 80 mg/L of papaya seed powder. Based on the results obtained, papaya seeds have the ability to control the turbidity from river intake.
