摘要: The influence of colloidal material and aquatic sediments on water quality is a very broad topic. This chapter will focus on how particulate material and sediments influence the fate, transport, and cycling of trace organic and inorganic chemicals that impact water quality. Also the manner in which colloidal material can significantly impact contaminant transport in groundwater systems will be discussed.Colloids are ubiquitous in surface water environments; they are reactive and behave differently from dissolved molecules. Colloids have a significant role in regulating trace elements, major ions, and organic contaminants distribution in surface water systems including lakes, rivers, estuaries and oceans. It has been found that up to 99.9 percent of total heavy metals in riverine or lacustrine systems can be associated with colloidal material. Thus, only 0.1 percent seems to be present in aqueous solution or sorbed to …
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