Thomas, D. A., Rebella, C. and Chartier, P., 1977. An analysis of the vertically reflected radiation from a maize crop as a possible means of determining its biomass and water content. Agric. Meteorol., 18 : 101--114. A system is described whereby the reflectance frequency distribution found by se
Determination of trihalomethanes produced through the chlorination of water as a function of its humic acid content
โ Scribed by M. A. Alawi; F. Khalill; I. Sahili
- Publisher
- Springer
- Year
- 1994
- Tongue
- English
- Weight
- 426 KB
- Volume
- 26
- Category
- Article
- ISSN
- 0090-4341
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โฆ Synopsis
Pure humic acid was isolated from Azraq Oasis sediments in the east of Jordan. Different concentrations of humic acid solutions, under different experimental conditions were analyzed for trihalomethanes (THMs), using different concentrations of hypochlorite ion as the chlorinating agent. The analysis of the THMs was done by capillary gas chromatography equipped with a 63Ni-electron capture detector. The presence of trihalomethanes in drinking water from some sites in Jordan was also studied, and some treatment techniques were attempted that could be used for reducing or eliminating trihalomethanes from drinking water.
After it became known that drinking water could be contaminated with some carcinogenic organochlorine compounds, there was an increased interest in a special class of these compounds which may be formed during the chlorination of drinking water. One main group of these harmful chlorinated compounds is trihalomethanes (THMs). Chloroform (CHCI3) , which is a suspected carcinogen, is the dominant member of the THM-group; the other compounds are dichlorobromomethane (CHCIaBr), dibromochloromethane (CHC1Br2), and bromoform (CHBr3).
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