A thermochemical process can convert lipids from sewage sludge into biodiesel, according to a new study (Environ. Sci. Technol., DOI: 10.1021/es3019435). The low cost and high yield of the sludge ...
In order to maintain optimum operating conditions in a FGD wet scrubber, a purge stream is discharged from the system to control the absorber equilibrium chloride concentration and acid insoluble ...