[Further study on possibility of diffusion of Oncomelania hupensis with water in river channels of the east route of South-to-North Water Diversion Project].

Objective: To study the drifting law of floats and potential risks of Oncomelania hupensis diffusion in the water diversion rivers of the east route of South-to-North Water Diversion Project.

Methods: The O. hupensis snails in the river channels were monitored by the salvage method and snail luring method with rice straw curtains, and the diffusion possibility of snails along with water was assessed through the drift test of floats with GPS.

[Natural attenuation of BTEX in the underground environment].

It was found that the naturally attenuation of BTEX occurred. In this process, volatilization and biodegradation are the important mechanisms. Taking benzene for example, at the concentration of 11.

[Redox zones and its functional bacteria in a contaminated landfill site].

A column filled with sandy soil was constructed to investigate biogeochemical process of leachate polluted zones. Experimental results demonstrated that four sequent redox zones appeared in pollution plume. The zones can be named sulfate reduction zone, iron reduction zone, nitrate reduction zone and oxygen reduction zone, ranges of them were 0-27 cm, 27-62 cm, 47-74 cm, 74-91 cm.

Glucose biosensor based on multi-wall carbon nanotubes and screen printed carbon electrodes.

This paper describes a disposable electrochemical biosensor for glucose monitoring. The sensor was based on multi-wall carbon nanotubes (MWCNTs) immobilized with glucose oxidase and upon screen printed carbon electrode. The effect of MWCNTs on the response of amperometric glucose oxidase electrode for glucose was examined.