Disinfection interference in wastewaters by natural organic nitrogen compounds
Article Abstract:
High concentrations of natural organic nitrogen compounds cause disinfection interferences in wastewaters. This was the experience of a wastewater treatment plant in Hampton Roads, VA, which handles sizable amounts of brewery waste. To confirm that the compounds are responsible for the interferences, brewery effluent was mixed with different wastewaters to form mixtures with differing chemical features. After chlorination at uniform levels, fecal coliform levels were measured. Mixtures with high ratios of total organic nitrogen to ammonia (TON/NH3) were poorly disinfected by aqueous chlorine. The disinfection ate also tended to decline with increasing TON/NH3 ratios.
Publication Name: Environmental Science & Technology
Subject: Science and technology
ISSN: 0013-936X
Year: 1996
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New purification technique for the removal of organics from aqueous solutions using silicone polymers
Article Abstract:
Silicone's permeability and absorption characteristics have recommended it for use in a new method of removing organic contaminants in an aqueous solution. The silicone polymer is used in the form of hollow fibre membranes, and issues such as wall thickness, tube length and temperature have been taken into account. The experiments have shown that it is possible to use hollow fibre membranes to purify water by removing organics from it, and the tubing is not limited in capacity. Research will aim at building a larger model capable of handling at least 400 gal/day.
Publication Name: Environmental Science & Technology
Subject: Science and technology
ISSN: 0013-936X
Year: 1993
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