Abstract: Arsenic was widely distributed in nature, which led to multiple health problem through many approaches. On the basis of reading plenty of paper at home and abroad, this paper gives a summary on the distribution and the mechanism of immobilization of arsenic on the source of sediment arsenic in aquifer, the control of sedimentogenesis on the cause of high arsenic aquifer, the hydrogeochemical process of arsenic immobilization and the impact of the hydrogeological condition on the immobilization of arsenic. Usually, high arsenic groundwater appears in arid/semi-arid inland basin, floodplain and fluvial delta. There was a good affinity between arsenic and Fe/Mn oxides and sulfides, which was the major factor controlling the distribution of arsenic in groundwater. Hydrogeological condition has a significantly influence on the distribution of groundwater arsenic. This paper has a theoretical and realistic meaning both on the public health and reasonable exploitation and utilization of water resources.Abstract: Arsenic was widely distributed in nature, which led to multiple health problem through many approaches. On the basis of reading plenty of paper at home and abroad, this paper gives a summary on the distribution and the mechanism of immobilization of arsenic on the source of sediment arsenic in aquifer, the control of sedimentogenesis on the cause o...Show More
Abstract: The problem of environment pollution in today's society is attracting more and more attention from all walks, Dyestuff wastewater is one of the "high energy consumption and high pollution" industries because of its relatively complex water quality components and relatively large amount of water, Its governance has become one of the key factors restricting the development of the industry. Choosing suitable wastewater treatment process is very important for the stable operation of dye wastewater treatment system and the stable discharge of tail water. Taking a dyestuff group as an example, from the aspects of raw water quality and water quantity, treatment process, selection of equipment parameters of advanced treatment facilities and effects of each process, the overall operation status of the renovation project is comprehensively discussed, and the operation effect of "air floatation + filtration + adsorption + membrane treatment" process in deep treatment of dyestuff wastewater is discussed.Abstract: The problem of environment pollution in today's society is attracting more and more attention from all walks, Dyestuff wastewater is one of the "high energy consumption and high pollution" industries because of its relatively complex water quality components and relatively large amount of water, Its governance has become one of the key factors rest...Show More
