Ping Fang

TL;DR: In this article, a complex absorbent containing urea and KMnO4 was used to investigate simultaneous removal of SO2, N O and Hg 0 from flue gas.

TL;DR: In this article, titanate nanotubes (TNTs) were used to tune the property of Mn-Ce composite oxides and led to an outstanding catalytic performance in selective catalytic reduction of NO by NH 3 within middle temperature region.

Abstract: The invention discloses a pretreatment method for heavy metal element detection in a solid sample and an application of the pretreatment method. The pretreatment method mainly comprises the five steps: a pre-decomposition stage, a mixed acid decomposition stage, an H2O2 decomposition stage, an acid catching stage and a volume determining stage, wherein the sample is primarily decomposed by using nitric acid in the pre-decomposition stage; the sample is further decomposed by using nitric acid, perchloric acid and hydrofluoric acid in the mixed acid decomposition stage, and the method comprises the main step that the sample is finally decomposed by using H2O2 in the H2O2 decomposition stage. The pretreatment method can be widely applied to the pretreatment for heavy metal element detection in solid samples such as soil, sludge, sediments at the bottom of a lake and the like, and has the advantages of wide application range, high heavy metal recovery rate, simplicity and feasibility in operation and the like.

TL;DR: The heavy metal ion complexing agent can be prepared by conventional, simple and convenient operation, and can remove heavy metal ions in wastewater through the action of complexation, absorption, flocculation, precipitation and the like after being added into the wastewater, and the removal efficiency to heavy metals ion such as Pb, Cd, Ni, Hg and the likes is more than or equal to 99% as mentioned in this paper.

TL;DR: In this article, a new method of split, partial oxidation and mixed absorption for the synergistic removal of SO2, NOx, and Hg0 is proposed, which has enormous potential in the r...