Aimed to investigate the potential of untreated jute stick charcoal as an alternative adsorbent for the treatment of dye containing wastewater. Removal of methylene blue dye from aqueous solution using jute stick charcoal has been investigated. Liquid phase adsorption experiments were conducted. Batch adsorption studies are carried out by observing the effect of experimental parameters, namely, pH, adsorbent dose, contact time and initial methylene blue concentration. The maximum removal of MB dye was 90.57% at pH 9, contact time 120 min, adsorbent dose 3 g/L and 20 mg/L initial dye concentration. Kinetic studies showed that the biosorption of MB followed Pseudo second-order kinetics. The adsorption isotherms are described by the Langmuir and Freundlich isotherms. It was found that the Freundlich equation fit better than the Langmuir equation. The maximum adsorption capacity obtained from Langmuir isotherm equation at was 29.33 mg/g. To conclude, jute stick charcoal holds promise for methylene blue removal from aqueous solution and can be used for other dyes removal and applicable in dyeing industries in Bangladesh where centralized effluent treatment plant is absent.

1. 7th International Conference on Water & Flood Management, ICWFM 2019
Md. Shahnul Islam*
Tapos Kumar Chakraborty
Gopal Chandra Ghosh
Samina Zaman
Removal of Methylene Blue from Aqueous
Solution by Jute Stick Charcoal: Adsorption
Equilibrium and Kinetics Studies
Department of Environmental Science and Technology,
Jessore University of Science and Technology,
Jessore-7408, Bangladesh
Abstract ID: 172L

2. 7th International Conference on Water & Flood Management, ICWFM 2019
1. BACKGROUND
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 Over 10,000 different dyes and pigments
 Over 7×105 tons of synthetic dyes are
annually produced
10-15% lost in the
effluent during dyeing
process
Textile industry plays a significant economic growth but creates serious
environment problem, particularly dumping of colored dye wastewater.
create toxic chemicals of aromatics,
chlorides, metals and amines

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 Methylene blue (MB) is a cationic dye
 Used in coloring paper, wools, as
biological stains and dying cottons
 Threat to human and biota due to its
carcinogenic and mutagenic properties
 Affect the photosynthetic activity in aquatic
life due to reduced light penetration
 Jute stick
 Low-cost, commonly available
adsorbent
 Sustainable biodegradable resource
1. Background (continue…)

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 To study the effect of contact time, pH, adsorbent dose and
initial dye concentration for the removal of methylene blue
(MB) from aqueous solution
 To study the kinetics properties for the adsorption process using
pseudo-first order, pseudo-second order and intra-particle
diffusion models
 To determine equilibrium condition for the removal of
methylene blue (MB) from aqueous solution and fit data to both
Langmuir and Freundlich isotherm models
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2. OBJECTIVES

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3. Materials & Methods
Preparation of Jute Stick Charcoal
Jute Stick
Drying in Oven
(80o C, 24 h)
Drying in Furnace
(300o C, 30 min)Washing
Jute stick charcoalCrushing
Screening
(0.5 to 0.1 mm)Storing

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3. Materials & Methods (continue…)
Batch Experiments
Batch and semi-batch experiments were carried out in 500 mL
beaker with 150 mL working volume solution with adsorbent.
1. 150 mL of MB
solution
2. pH adjust (with
0.1 M HCl and 0.1
M NaOH solutions)
3. JSC dose add
6. Filtrate collect
for MB test
5. Filter through
filter paper
4. Stirring at 180
rpm
 Effect of time 1 to 180 min
 Effect of pH 3 to 11
 Effect of dose 1 to 9 g/L
 Effect of concentration 10 to 100 mg/L

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4. RESULTS AND DISCUSSION
71.61
73.81
76.05
77.41 77.74 81.47 81.82 81.98
0
20
40
60
80
100
0 20 40 60 80 100 120 140 160 180 200
Remove(%)
Time (min)
Batch Methylene Blue Adsorption
Effect of contact time on MB adsorption
Figure 1: Effect of contact time on adsorption of methylene blue
(C0-20 mg/L, pH- 5, speed-180 rpm and adsorbent dose- 3 g/L)
120 min
y = 0.0341x + 0.2311
R² = 0.9504
y = 0.5168x + 0.6605
R² = 0.9982
-0.8 -0.4 0 0.4 0.8 1.2 1.6
0
0.2
0.4
0.6
0.8
1
1.2
1.4
1.6
0
0.2
0.4
0.6
0.8
1
1.2
0 3 6 9 12 15 18 21 24 27 30
logCe
logqe
Ce/qe
Ce
Langmuir
Freundlich
Linear (Langmuir)
Linear (Freundlich)
y = -0.0069x - 0.0709
R² = 0.9412
y = 0.1921x + 0.1548
R² = 0.9997
0 20 40 60 80 100
0
3
6
9
12
15
18
21
-0.8
-0.7
-0.6
-0.5
-0.4
-0.3
-0.2
-0.1
0
Time (min)
t/qt
log(qe-qt)
1st Order
2nd Order
Linear (1st Order)
Linear (2nd Order)
(A) (B)
Figure 2: (A) Kinetics and (B) Isotherm of MB adsorption

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4. Results and Discussion (continue…)
Table 1: Comparison of MB sorption capacity of JSC with other
reported low-cost adsorbent materials
Adsorbent Maximum adsorption
capacity (mg g-1)
Reference
Jute stick charcoal 29.33 This study
Banana peel 20.8 Annadurai et al., 2002
Orange peel 18.6 Annadurai et al., 2002
Wheat shells 16.56 Bulut and Aydin, 2006
Egg shell 16.43 Tsai et al., 2006
Coconut coir 15.59 Sharma et al., 2009
Indian rosewood
sawdust
11.8 Garg et al., 2004

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5. CONCLUSION AND
RECOMMENDATIONS
Conclusion
 The maximum removal of MB dye was 90.57% at contact time
120 min, pH 9, adsorbent dose 3 g/L and 20 mg/L initial dye
concentration at room temperature and atmospheric pressure.
 The results indicate that the adsorption of MB onto JSC follows
the pseudo-second-order kinetic model better.
 The adsorption isotherm data fit the Freundlich model well
illustrating that the adsorption of MB onto JSC occurs on a
heterogeneous surfaces by multilayer adsorption and value of
n represents favorable condition.
 Maximum adsorption capacity of JSC is 29.33 mg/g on MB.

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5. Conclusion and Recommendations
(continue…)
Recommendations
 JSC is effective bio-adsorbent for MB removal from aqueous
solution and it could be used for other dyes removal and
applicable in dyeing industries in Bangladesh.

11. 7th International Conference on Water & Flood Management, ICWFM 2019
Thankyou
for
Your Time and Attention
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