Submitted on: 03 August 2001.
Revised on: 23 September 2001.
Accepted on: 11 November 2001.
___________________International Journal of Environmental Technology and Management
Submitted on: 08 January 2000.
Revised on: 24 February 2000.
Accepted on: 18 March 2000.
___________________International Journal of Environmental Technology and Management
Submitted on: 22 December 2006.
Revised on: 18 March 2007.
Accepted on: 02 May 2007.
___________________International Journal of Environmental Technology and Management
Submitted on: 12 July 2014.
Revised on: 04 October 2014.
Accepted on: 30 November 2014.
___________________International Journal of Environmental Technology and Management
Submitted on: 10 June 2024.
Revised on: 31 August 2024.
Accepted on: 19 September 2024.
___________________International Journal of Environmental Technology and Management
http://reply.papertrans.cn/2/134/13386/13386-16.png
http://reply.papertrans.cn/2/134/13386/13386-17.png
Submitted on: 14 December 2007.
Revised on: 27 January 2008.
Accepted on: 03 March 2008.
___________________International Journal of Environmental Technology and Management
http://reply.papertrans.cn/2/134/13386/13386-19.png
http://reply.papertrans.cn/2/134/13386/13386-20.png