咏春拳
花朵
共回答了9个问题采纳率:100% 举报
Right living areas of water and sodium hypochlorite for UV disinfection Ultraviolet and sodium hypochlorite to disinfect the water before and after the common volatile organic compounds GC / MS detection,comparison,inspected before and after disinfection of different volatile organic compounds to water disinfection technology to provide relevant scientific data.Explore a set of successful enrichment of organic matter in water SPE devices and the operating steps.Through a series of UV disinfection time contrast,Four W UV lamp handle 500 mL of water disinfection of the best time for 5 min.But after disinfection by-products easy to find and the reasons for its conduct discussed.In addition,the use of sodium hypochlorite disinfection of water,sodium hypochlorite solution diluted 50 times,in 500 mL of water samples by adding 10.0 mL,the types of organic matter reductions is the best,from 209 to 129 species of reduction,while some have disinfection by-products,such as 2-chloro capric acid ester,1,2-ethoxy-2,1-dibromoethane,1-bromo 18 alkanes,1-chloro 16 long-chain alkanes and other halogenated hydrocarbons,the lower concentration.
1年前
10