Denitrification removal of nitric oxide in a rotating drum biofilter

Simultaneous removal of SO2, NO and Hg0 by wet scrubbing using urea + KMnO4 solution

“…Among them, SCR is considered as the most effective one for NO X reduction in the available technologies [6]. However, the high cost, large area and potential poisoning of catalysts have made SCR processes less attractive for industrial use in China [7]. For mercury control, activated carbon injection upstream of the ESP or FF is considered as the most promised as a mercury control technology [8,9], whereas, the rather high cost of the sorbent, activated carbon's poor utilization/selectivity for mercury have made this technology less attractive for industrial use in China [10,11].…”

Adsorption–Reduction Behavior of Co(NH3) on Activated Carbon

“…In addition, two sharp diffraction peaks of crystalline cobalt metal at angles of 44.0 and 51.3 can also be evidently observed. It can be concluded that the heat treatment accelerates the crystallization of Co metal and CoO particles adsorbed on activated carbon which do not well crystallize before heat treatment at 873 K. Figure 3b manifests that Co metal and Co(OH) 2 are produced in the CoðNH 3 Þ confirmed by the Co 2p 3/2 and Co 2p 1/2 peak at 780.3 and 795.9 eV, respectively, accompanied by a relatively intense 3d ! 4s shake-up satellite peak at 787.7 and 797.4 eV [19].…”

“…Flue gas desulfurization (FGD) scrubbers have experienced high SO 2 removal, but that is not so for NO because it has low solubility in aqueous solution. The present techniques for controlling nitric oxide such as selective catalytic reduction (SCR), selective non-catalytic reduction (SNCR) suffer from the problems of selectivity, high cost [1], and catalyst sulfur poison [2]. Wet processes of NO elimination by adding chemical additives into the aqueous solution to realize the combined removal of SO 2 and NO have been studied extensively in recent years [3][4][5][6][7][8].…”

Modeling of a foamed emulsion bioreactor: II. model parametric sensitivity

“…However, their specific volumetric performance is often limited and novel gas phase bioreactors have been explored (Daugulis, 2001;Kan and Deshusses, 2003;Pressman et al, 2000;Vinage et al, 2001;Wang et al, 2006;Yang et al, 2004). We have recently developed a novel high performance bioreactor system called the foamed emulsion bioreactor (FEBR).…”