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Synthesis of alumina has been carried out by utilizing anodized waste as raw material. Anodized waste is a by-product of metal anodizing processes such as aluminium. This study aims to determine the effect of acidity (pH) and aging time on the mass of Al(OH)3 and the property of Al(OH)3 as well as Al2O3 that produced. Anodized waste was deposited into Al(OH)3 and then purified. Alumina synthesized by the sol-gel method with pH variations of 7, 8, 9, and 10 and aging times of 24, 48, and 72 hours. The Al(OH)3, which has been produced, was characterized by PSA and powder XRD spectrophotometer. The results showed that the synthesis of Al(OH)3 was influenced by pH and aging time. It affects the yield and particle size of Al(OH)3. The optimum condition of the synthesis was pH 7 and aging time of 24 hours with yield of 1.85 grams. Characterization by PSA at a current diameter of 90% indicate that higher pH value and longer aging time produces smaller particle size. Characterization by powder XRD shows that the Al(OH)3 has gibbsite crystal phase with d values of 3.360, 3.217, 2.252, 2.029, and 1.649 Å.

The purpose of this study was to determine the character of a zeolite, knowing the ratio of the addition of zeolites and zeolite activation on levels of N from organic fertilizers, determine the effect of banana stems against K content of manure and know the quality of the organic fertilizer produced. Research has been done that is activated zeolite with HCl 0.4 m. Natural zeolites and activated zeolite characterization has been done using XRF, AAS and SAA. Organic fertilizer production is done by adding the zeolite and the banana stems in 500 grams of chicken manure with the addition of zeolite variation by 5, 10, 15, 20 and 25 grams. The addition of banana stem variations of 100, 150, 200 and 250 grams. Organic fertilizer analysis contains N, P, and K. The results showed that the zeolite contains elements Si, Al, Ca and Fe. AAS results showed that the zeolites contain elements K of 0.258% and 0.405% respectively for natural zeolites and zeolite activation. SAA results showed that the zeolite is a mesoporous material with a surface area, pore diameter and volume respectively was 244.2 m2 / g, 6.008 nm, 0.099 mL / g for natural zeolites and zeolite activation was 251.7 m2 / g, 6.046 nm and 0,088mL / g. The addition of zeolite can increase the levels of N fertilizer. The addition of zeolite activation in the manufacture of manure increases the levels of N and K but lower levels of P. The addition of a banana tree in the manufacture of organic fertilizer can increase the levels of N, P and K fertilizer. Increasing the ratio of banana stems not affect the K value of manure produced. Quality of the manure generated from livestock manure to 500 grams, 250 grams and 25 grams of banana stem zeolite activation had higher levels of N 4.90%, 1.08% P2O5, K2O 0.62%, 9.31% water content, organic-C 33.48% and C / N ratio of 6.83%.

Chitosan as adsorbent has been used widely, however it was not effective yet for metal ions adsorption in industrial scale. In acidic condition, chitosan’s active site tends to decrease. This drawback can was solved by coating of chitosan active site on alumina. This paper discloses to overcome that limitation. The charateristic of the active side was analysed by FTIR spectrometry toward vibration N-H group at 1679.15 cm-1, C=O group of oxalate at 1703.30 cm-1, and Al-O group of alumina at 924.07 cm-1. The adsorption capacity of the developed adsorbent was tester to adsorb Cr(VI) ions under various of pH value such as 1, 2, 3, 4, 5, 6, and 7. The contact time affect toward the adsorption was also reported in 20, 30, 40 50, 60, 70, and 80 minute. In addition, the concentration effects (100, 200, 300, 400, 500, and 600 ppm) was also studied. Chromium (VI) was measured using spectronic-20. Adsorption capacity was obtained at 66.90 mg/g under optimum conditions pH 2, and contact time 60 minute, respectively.

Chitosan as adsorbent has been used widely, however it was not effective yet for metal ions adsorption in industrial scale. In acidic condition, chitosan’s active site tends to decrease. This drawback can was solved by coating of chitosan active site on alumina. This paper discloses to overcome that limitation. The charateristic of the active side was analysed by FTIR spectrometry toward vibration N-H group at 1679.15 cm-1, C=O group of oxalate at 1703.30 cm-1, and Al-O group of alumina at 924.07 cm-1. The adsorption capacity of the developed adsorbent was tester to adsorb Cr(VI) ions under various of pH value such as 1, 2, 3, 4, 5, 6, and 7. The contact time affect toward the adsorption was also reported in 20, 30, 40 50, 60, 70, and 80 minute. In addition, the concentration effects (100, 200, 300, 400, 500, and 600 ppm) was also studied. Chromium (VI) was measured using spectronic-20. Adsorption capacity was obtained at 66.90 mg/g under optimum conditions pH 2, and contact time 60 minute, respectively.