Potency of Chitin as an Adsorbent in Black Water Treatment Process at Peatland Environment

Abstract

Abstract-The main problem in treatment peat water is related to its specific characteristics, such as low pH (3-4), high organic content, high Fe and Mn content, and dark brown or black water. The objectives of this research are: (1) to determine the potency and effectiveness of chitin as an adsorbent in black water treatment process using column system, and (2) to know the desorption capability of dilute acid toward the Fe and Mn cations that adsorbed in chitin column. The results showed that chitin was successfully isolated from shrimp waste by hydrolysis reaction (including three steps namely deproteination, decalcification, and decolorizing). Chitin column system is effective enough to be used as an adsorbent black water. Active sites of chitin (acetamide and hydroxyl) have the ability to adsorb metals contained in the black water of eco-friendly land. The maximum ability of chitin in black water treatment happened at 30 cm display column and 6 drops/min for flow rate. In this maximum condition, chitin column ability reduces Fe, Mn, dissolved solids, BOD, COD, pH, temperature, and color respectively as much as 86.69%, 91.80%, 98.67%, up to 275%, below 99%, neutral pH range, normal air temperature, and colorless. Thus, chitin can be utilized to treat black water until it is suitable to drink. People knowledge about chitin potency as the adsorbent in black water can transform the habit of people around black water environment in using black water. Black water will be used by people around peatland environment after the treatment by chitin as a tool to the black water treatment process.

E-Magazine Development with Social Emotional Learning Approach on Colloid Material in Context of Local Wisdom

“…Adsorbents (i.e. activated carbon, alumina, chitin, chitosan) are used to remove colors and organic pollutants in wastewater (Allen & Koumanova, 2005;Syahmani et al, 2017).…”

Characterization of Fe(III) Adsorption onto Zeolite and Bentonite

“…Though the desorption process of Fe(III) from zeolites and bentonites was not part of this study, it could be realized with diethylenetriaminepentaacetic acid [39], 0.5 mol.l −1 HNO 3 [40], Na 2 -EDTA [41], HCl and EDTA [42], thermally [43] etc. The desorption may be a part of further study.…”

Natural polymers as alternative adsorbents and treatment agents for water remediation

“…Even though the backbone is structurally alike, properties of both differ importantly; chitin is highly hydrophobic and insoluble in water and most organic solvents, therefore stable at natural environment. Also chitin is prone to interact with calcium and proteins, which can also be easily removed when necessary for reuse (Syahmani et al 2018).…”

“…The original water sample contained 10.34 and 0.20 mg/L, Fe and Mn, respectively, 210 mg/L of organic matter, and was dark brown colored with a pH of 3.88. After flowing through 25 cm of the column, 86.7% and 91.8% of the two metals, and 98.7% of the organic matter were removed from the solution, leaving a final stream with a pH 6.5 and a colorless flow (Syahmani et al 2018). This simple experiment confirms the capacity of the chitin for entrapping metals and organic molecules, which also proved to be reversible in the case of metals when using a nitrite acid 0.5 M, providing the chance for reuse of the system.…”