Nghiên cứu hiệu quả xử lý Mononitrotoluen trong môi trường nước bằng quá trình Sono-Photo-Fenton kết hợp xúc tác dị thể nano sắt hóa trị 0 (nZVI)
7 lượt xemDOI:
https://doi.org/10.54939/1859-1043.j.mst.FEE.2024.274-279Từ khóa:
Mononitrotoluen; Sono-Photo-Fenton-like; nZVI; RSM.Tóm tắt
Nước thải chứa thành phần Mononitrotoluene (MNT) có ảnh hưởng đến sức khỏe con người, sinh vật và môi trường xung quanh. Trong nghiên cứu này, hiệu quả xử lý MNT trong môi trường nước của quá trình Sono-Photo- Fenton-like kết hợp vật liệu nano sắt hóa trị 0 (nZVI) được nghiên cứu đánh giá. Trong đó, ảnh hưởng của các yếu tố pH, nồng độ H2O2, nồng độ nZVI, thời gian phản ứng đến hiệu quả xử lý được nghiên cứu đánh giá thông qua quy hoạch thực nghiệm bằng phương pháp bề mặt đáp ứng (RSM). Kết quả nghiên cứu cho thấy hiệu quả xử lý MNT bằng quá trình Sono- Photo-Fenton kết hợp nZVI đạt 100% tại điều kiện pH = 2, C0MNT = 100 mg/L, CnZVI = 0,5 mM; CH2O2 = 5 mM, thời gian phản ứng 30 phút.
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