Optimisation of Crystal Violet and Methylene Blue Dye Removal from Aqueous Solution onto Water Hyacinth using RSM | ||
| Pollution | ||
| دوره 7، شماره 4، زمستان 2021، صفحه 799-814 اصل مقاله (546.37 K) | ||
| نوع مقاله: Original Research Paper | ||
| شناسه دیجیتال (DOI): 10.22059/poll.2021.322778.1072 | ||
| نویسندگان | ||
| Rajnikant Prasad* 1؛ Kunwar Durg Yadav2 | ||
| 1A-704, Bhabha Bhavan, SVNIT, Icchhanath, Surat | ||
| 2Civil Engineering Department, Sardar Vallabhbhai National Institute of Technology, Surat, Gujarat 395 007, India. | ||
| چکیده | ||
| In this study, the adsorptive removal of two dyes (crystal violet (CV) and methylene blue (MB)) with HNO3 pre-treated water hyacinth powder (WHP) adsorbent was analysed. The experiments were designed using response surface methodology (RSM) with variable input parameter pH (2-12), adsorbent dose (0.5-3 g/L), initial dyes concentration (25-200 mg/L) and time (10-180 min). The optimization condition for dye removal were (pH = 7.22, adsorbent dose = 3.0 g/L, initial dye concentration = 195.28 mg/L and time of contact = 99.29 min) for CV with removal of 98.20% and (pH = 9.82, adsorbent dose = 2.96 g/L, initial dye concentration = 199.36 mg/L and contact time = 111.74 min) for MB with removal of 97.843%. The above findings observed that pre-treated water hyacinth powder can be utilised as a cost-effective and efficient adsorbent for dye effluent wastewater treatment. | ||
| کلیدواژهها | ||
| Adsorption؛ Central composite design؛ Dye؛ Water hyacinth | ||
| مراجع | ||
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