Publication: การกำจัดไอออนโลหะแบบแข่งขันในคอลัมน์แพคเบดโดยใช้เปลือกเมล็ดทานตะวันปรับสภาพด้วยโซเดียมไฮดรอกไซด์
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Issued Date
2012
Resource Type
Language
tha
File Type
application/pdf
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open access
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ผลงานนี้เผยแพร่ภายใต้ สัญญาอนุญาตครีเอทีฟคอมมอนส์แบบ แสดงที่มา-ไม่ใช้เพื่อการค้า-ไม่ดัดแปลง 4.0 (CC BY-NC-ND 4.0)
Rights Holder(s)
มหาวิทยาลัยศรีนครินทรวิโรฒ
Suggested Citation
กนกอร พงษ์พิทักษ์, จักรกฤช จันทรมหา (2012). การกำจัดไอออนโลหะแบบแข่งขันในคอลัมน์แพคเบดโดยใช้เปลือกเมล็ดทานตะวันปรับสภาพด้วยโซเดียมไฮดรอกไซด์. สืบค้นจาก: https://hdl.handle.net/20.500.14740/10535
Alternative Title(s)
Competitive removal of mixed metal ions in packed bed column by NaOH-modified sunflower seed husk
Author(s)
Advisor(s)
Organization
Abstract
This chemical engineering project entitled “Competitive Removal of Mixed Metal Ions in Packed Bed Column by NaOH-Modified Sunflower Seed Husk” was studied. Firstly, sunflower husk was treated by 10%wt NaOH and sieved to a certain size of 500 to 710 micrometers. Secondly, optimum pH for metal ion removal was investigated in the range of 2 to 5 in batch mode and the results showed that the optimum pH is 5 for Ni(II) Pb(II) and Cd(II) removal by the
husk with 65.43%, 98.93% and 96.85% removal respectively. Whereas the optimum pH for Zn(II) removal was 4 with the percentage of 81.72. Finally, the experiment was carried out for competitive removal with 10 centimeters height bed, flow rate of 5 milliliters per minute and solution pH 5 in packed column. From our experimental result, it was found that the potential of removal capacity of metal ions were Pb(lI) > Ni(Il) > Cd(II) > Zn(n) respectively. Moreover, the removal metal ions were fitted to Bed Depth Service Time (BDST) model. The maximum adsorption capacity (Na) and adsorption rate coefficient (KJ for Pb(II) were 2,785.62 milligrams per liter and 1.34x104 liter per milligrams-minute; 2,271.00 milligrams per liter and 4.12x105 liter per milligrams-minute for Ni(II); 2,009.01 milligrams per liter and 6.83x105 liter per milligrams-minute for Cd(II) and the last for Zn(II) were 1,597.54 milligrams per liter 1.47x1 o'4 liter per milligrams-minute respectively.