By means of deoxyribose oxidation assay the capability of the biological oxidation generated by fly ashes,including five coalfired fly ashes and one wood combustion fly ash,as well as effects of external chelators such as diethylenetriaminepentacetic acid (DTPA),nitrolotriacetate (NTA),ethylenediamine tetraacetic acid (EDTA) and citric acid (CIT),have been studied.

Study on distribution characteristic of element in fly ash particles during coal combustion;

Through the simulation experimentation, the Hg adsorption characteristics of fly ash in flue gas were studied carefully in laboratory.

This paper presented model and experimental studies on the influence of frequency on acoustic agglomeration of coal-fired fly ash.

It is pointed out that the type of boiler with back-fed combustion of fly ash is a main trend, and the further study emphases, how to arrange the relationship of the furnace structure, secondary air and separator in reason, is pointed out.

Acoustic agglomeration of coal-fired fly ash particles in low frequency sound fields

An experiment was conducted to study the effects of flue gas components on the mercury adsorption by coal-fired fly ash by using a bench-scale fixed bed.

Using mercury vapor generated in mercury penetration tube and basic gaseous components,the influences of fly ash amount,adsorption temperature,inlet mercury concentration and fly ash particle size on the adsorption of mercury vapor by coal-fired fly ash were studied in a bench-scale fixed-bed test rig.