English  |  正體中文  |  简体中文  |  Items with full text/Total items : 26999/38800
Visitors : 2401772      Online Users : 69
RC Version 4.0 © Powered By DSPACE, MIT. Enhanced by NTU Library IR team.
Scope Adv. Search
LoginUploadHelpAboutAdminister

Please use this identifier to cite or link to this item: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/51886

Title: Improvement of Oxygen Release from Calcium Peroxide‐polyvinyl Alcohol Beads by Adding Low‐cost Bamboo Biochar and Its Application in Bioremediation
Authors: Chih‐Hung Wu
Shih‐Hsien Chang
Chi‐Wen Lin
Contributors: 國立臺灣海洋大學:地球科學研究所
Keywords: Biomass
BTEX (benzene, toluene, ethylbenzene, xylene)
Oxygen‐releasing beads
Response surface method
Date: 2015-02
Issue Date: 2019-01-03T03:08:38Z
Publisher: CLEAN - Soil, Air, Water
Abstract: Abstract: A limited concentration of dissolved oxygen commonly reduces the effectiveness of groundwater bioremediation. A novel bamboo biochar oxygen‐releasing bead (ORB) was prepared and its application in groundwater bioremediation was evaluated. The results reveal that bamboo biochar effectively adsorbed benzene, toluene, ethylene, and xylene. The Freundlich model described the adsorption behavior (R2 = 0.990) well. The response surface method was used to prepare biochar‐ORBs. Results indicate that the proportions of calcium peroxide, citrate, polyvinyl alcohol, and bamboo biochar for the optimal oxygen‐releasing capacity of biochar‐ORBs were 20:2.22:9.23:31.5 (w/w/w/w). A multiple linear regression equation effectively predicted oxygen releasing capacity (R2 = 0.991). A column experiment indicated that the period of oxygen release from biochar‐ORBs (104 days) was much longer than that from ORBs (51 days). The mechanical strength of biochar‐ORBs (disintegration ratio: 3.4%) exceeded that of ORBs (disintegration ratio: 6.9%). Degraders that contained biochar‐ORBs rapidly removed 99% toluene at a concentration of 45.6 mg L−1. Scanning electron microscopy showed that degraders attached to and grew on biochar‐ORBs following bioremediation. Taken together, the results reveal that biochar‐ORB is a potential oxygen‐releasing material for use in groundwater bioremediation.
Relation: 43(2) pp.287-295
URI: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/51886
Appears in Collections:[應用地球科學研究所] 期刊論文

Files in This Item:

File Description SizeFormat
index.html0KbHTML6View/Open


All items in NTOUR are protected by copyright, with all rights reserved.

 


著作權政策宣告: 本網站之內容為國立臺灣海洋大學所收錄之機構典藏,無償提供學術研究與公眾教育等公益性使用,請合理使用本網站之內容,以尊重著作權人之權益。
網站維護: 海大圖資處 圖書系統組
DSpace Software Copyright © 2002-2004  MIT &  Hewlett-Packard  /   Enhanced by   NTU Library IR team Copyright ©   - Feedback