论文代写-水质与DBP形成的关系

论文代写-水质与DBP形成的关系。任何腐殖质形式的物质在形成DBP的过程中都有许多复杂的过程。这主要取决于腐殖质的物理和化学性质以及水的质量,包括pH值、溴离子浓度和水的总温度。余氯浓度是DBP形成的重要因素之一。一般认为,HAA的形成与pH值的升高有直接关系。它随水体pH值的增加而降低。然而,温度的影响被发现是成正比的。HAA的形成随着水体温度的升高而增加。然而,在其背后,较高的水温也是HAA降解的关键(Agori et al., 2015)。接下来论文范文论文代写-水质与DBP形成的关系分享给留学生阅读。

There are a lot of complications associated with the ways how any humic form of substance can actually undergo the formation of DBP. This is largely based upon the physical and chemical properties of humus and quality of water including pH, bromide concentration and overall temperature of water. The residual chlorine concentration has conclusively been shown to be one of the important players towards DBP formation. In general terms, HAA formation is supposedly directly related to pH increase. It decreases whenever the pH of the water body increase. However, the effect of temperature has been found to be directly proportional. HAA formation increases with the increase in temperature of water body. However, on the hinder side, higher water temperature also serves as a key for HAA degradation (Agori et al., 2015).
Similarly, bromide ion as mentioned before enhances HAA formation. The chlorinated waters generally contain bromide which is oxidized thereby leading to the formation of hypobromous acid and finally forming brominated DBPs. The higher doses of chlorine will lead to the formation of greater amount of DBPs till the time, and precursors for formation are available in the water body. This thus makes it imperative that if the chlorination process is shifted at a later stage, the DBP formation might decrease. It is due to the fact that the amount of precursor will decrease after the processes of coagulation and flocculation and thus chlorine does not have precursors for further reaction. However, researchers have pointed out that enhanced doses of chlorine dioxide above the dose of 1.5mg/ml significantly decrease the formation of HAA (Wang et al., 2014).

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