TAILIEUCHUNG - Mass Transfer in Multiphase Systems and its Applications Part 14

Tham khảo tài liệu 'mass transfer in multiphase systems and its applications part 14', kỹ thuật - công nghệ, cơ khí - chế tạo máy phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả | Mass Transfer in Hollow Fiber Supported Liquid Membrane for As and Hg Removal from Produced Water in Upstream Petroleum Operation in the Gulf. 509 4. HFLSM applications for arsenic and mercury removal Types of the extractants and stripping solutions are pivotal to the success of As and or Hg separation. Iberhan and Wisniewski Iberhan and Wisniewski 2002 extracted As III and As V using the organic extractants of Cyanex 925 Cyanex 301 and a mixture between Cyanex 925 and Cyanex 301 at different volumetric ratios. The result showed that Cyanex 301 provided higher extraction of As III than As V . The mixture of Cyanex 925 and Cyanex 301 helped remove As V significantly while pure Cyanex 925 could extract As V a little better than As III . Fabrega and Mansur Fabrega Mansur 2007 extracted Hg II from HCl solution by Aliquat 336 dissolved in commercial Kerosene Exxol D-80. Mercury was almost extracted within 5 min at pH 1 and was satisfactorily stripped out about 99 by using thiourea as the stripping solution. Chakrabarty Chakrabarty et al. 2010 found that by using triocthyamine TOA as the extractant in liquid membrane Hg II could be extracted from pure solution more than lignosulfonate-mixed solution. Knowledge from the past researches elicited our research group to progress further for the effective removal of arsenic mercury ions from the produced water via HFSLM. Sangtumrong Sangtumrong et al. 2007 simultaneously separated Hg II and As III ions from chloride media via HFSLM by TOA dissolved in toluene as the extractant and NaOH as the striping solution. Prapasawat Prapasawat et al. 2008 used Cyanex 923 dissolved in toluene to separate As III and As V ions from sulphate media with water as the stripping solution via HFSLM. It was found that more As V could be extracted than As III . Uedee Uedee et al. 2008 obtained 100 extraction and 97 recovery of Hg II ions from chloride media via HFSLM using TOA dissolved in kerosene as the extractant and NaOH as the stripping .

TỪ KHÓA LIÊN QUAN
TAILIEUCHUNG - Chia sẻ tài liệu không giới hạn
Địa chỉ : 444 Hoang Hoa Tham, Hanoi, Viet Nam
Website : tailieuchung.com
Email : tailieuchung20@gmail.com
Tailieuchung.com là thư viện tài liệu trực tuyến, nơi chia sẽ trao đổi hàng triệu tài liệu như luận văn đồ án, sách, giáo trình, đề thi.
Chúng tôi không chịu trách nhiệm liên quan đến các vấn đề bản quyền nội dung tài liệu được thành viên tự nguyện đăng tải lên, nếu phát hiện thấy tài liệu xấu hoặc tài liệu có bản quyền xin hãy email cho chúng tôi.
Đã phát hiện trình chặn quảng cáo AdBlock
Trang web này phụ thuộc vào doanh thu từ số lần hiển thị quảng cáo để tồn tại. Vui lòng tắt trình chặn quảng cáo của bạn hoặc tạm dừng tính năng chặn quảng cáo cho trang web này.