Variation of organic halide formation potential of dyestuffs during ozonation and correlation with color

1999 ◽  
Vol 21 (5) ◽  
pp. 487-500 ◽  
Author(s):  
Nobuyuki Takahashi ◽  
Toshihiro Nakai ◽  
Yoshio Satoh
Keyword(s):  
Organic Halide ◽  
Formation Potential

scholarly journals Variation of Organic Halide Formation Potential of Dyes and Intermediates by Ozonation.

1999 ◽  
Vol 22 (5) ◽  
pp. 415-419 ◽  
Author(s):  
Nobuyuki TAKAHASHI ◽  
Toshihiro NAKAI ◽  
Yoshio SATOH
Keyword(s):  
Organic Halide ◽  
Formation Potential

Effect of preozonation on the organic halide formation potential of an aquatic fulvic acid

1989 ◽  
Vol 28 (7) ◽  
pp. 1082-1089 ◽  
Author(s):  
Jean Philippe Croue ◽  
Fernando J. Beltran ◽  
Bernard Legube ◽  
Marcel Dore
Keyword(s):  
Fulvic Acid ◽  
Organic Halide ◽  
Formation Potential

Trihalomethane Formation Potential and Disinfection

1992 ◽  
Vol 27 (1) ◽  
pp. 185-202
Author(s):  
C.R. Erland Jansson
Keyword(s):  
Hydroxyl Radicals ◽  
Giardia Lamblia ◽  
Test Results ◽  
Formation Potential ◽  
Trihalomethane Formation Potential ◽  
Resistant Species ◽  
Low Levels ◽  
High Concentrations ◽  
Operational Data ◽  
Surface Water Supply

Abstract The UVOX process was developed to reduce the high concentrations of trihalomethanes, a potentially hazardous disinfection by-product found in a surface water supply for a community in northeastern Saskatchewan. Pilot plant tests were conducted at a throughput of 1.25 l/s utilizing UV to produce hydroxyl radicals from photolysis of H2O2 with air cooled UV units. These tests continued through 1985 andl986 to provide operational data for all seasons of the year. Test results indicated that the UVOX process was effective in reducing trihalomethane formation potential to very low levels. Recent concerns have also centred on the biocidal effectivenesss of disinfectants, particularly when applied to inactivation of resistant species of microogranisms, such as the cysts of Giardia lamblia. The UVOX process in a single pass configuration slightly enhanced the ability of UV to inactivate Giardia cysts.

Outflows of Organic Halide Precursors from Forest Regions

1989 ◽  
Vol 21 (12) ◽  
pp. 1877-1880 ◽  
Author(s):  
S. Saito ◽  
K. Hattori ◽  
T. Okumura
Keyword(s):  
Water Quality ◽  
River Basin ◽  
Surface Soil ◽  
Soil Layer ◽  
Water Quality Monitoring ◽  
Quality Monitoring ◽  
Deep Soil ◽  
Organic Halide ◽  
Forest Regions ◽  
Surface Soil Layer

Outflows of organic halide precursors (OXPs) from forest regions were studied in relation to water quality monitoring in the Yodo River basin. Firstly, the contribution of outflows from forest regions relative to the total was roughly estimated. Then equations for flows of these substances were formulated, divided into four different subflow categories: precipitation; throughfall; surface soil layer; and, deep soil layer. Finally, annual outflow loads were calculated for a test forest area.

Ozone and SOA formation potential based on photochemical loss of VOCs during the Beijing summer

2021 ◽  
pp. 117444
Author(s):  
Junlei Zhan ◽  
Zeming Feng ◽  
Pengfei Liu ◽  
Xiaowei He ◽  
Zhouming He ◽  
...  
Keyword(s):  
Formation Potential
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