Factors influencing the formation of assimilable organic carbon during chlorination/chloramination of Cyclops.

Autor: Zhengchen Shi, Xingbin Sun, Huishan Ni, Jiameng Liu
Předmět:
Zdroj: Desalination & Water Treatment; Mar2018, Vol. 107, p85-90, 6p
Abstrakt: Investigation of the formation of assimilable organic carbon (AOC) was performed during the chlorination/chloramination of Cyclops metabolite solutions under varied conditions, and the effects of metabolites generated by organisms on water security as well as the formation of assimilable organic carbon (AOC) was also researched. Furthermore, investigation of impacts of chlorine and chloramine doses, coagulant doses, reaction time and temperature on the formation of assimilable organic carbon (AOC) was also carried out during the disinfection of Cyclops metabolite solutions. It was revealed that the pattern of AOC concentration decreased following an increasing trend accompanied with increased temperature and reaction time. Disinfectant dosages exerted influences on AOC formation in different manners. With the increase in the dose of chlorination and chloramination, AOC concentration exhibited an apparent decrease, followed by an increase, while the chain of AOC concentration decreased a little bit. Nevertheless, AOC concentration experienced a consistent decrease as coagulant dosage was augmented. The formation of AOC can be suppressed through the proper scenarios. Moreover, the results revealed the fact that the minimum amount of AOC was produced by a combination of chlorination (4 mg/L) and coagulant (40 mg/L), and the interaction was conducted at 20°C of temperature together with encompassing reaction time of 6 h. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index