Removal of Nitrate in Sulfur-Denitrification Filter Process.
نویسندگان
چکیده
منابع مشابه
assessment of autotrophic denitrification process with different sources of sulfur for removal of nitrate from water
introduction:nitrate entrance to water bodies can cause eutrophication and decrease quality of them, furthermore it can effect on human health so concentration of nitrate must be at defined standard level. there are several methods for reduction or removal of nitrate in water such as ion exchange, reverse osmosis, electrodialysis and denitrification. microbial denitrification of nitrate in anox...
متن کاملNitrate Removal with Sulfur-limestone Autotrophic Denitrification Processes: Application and Kinetics
Nitrate contamination in ground and surface water has become an increasingly serious problem in the world. As an alternative biological denitrification process, sulfur-limestone autotrophic denitrification processes (SLAD) can be used for nitrate removal in water or wastewater that contains a limited amount of organic carbon sources. This paper summarizes applications of SLAD processes for nitr...
متن کاملSulfur-based Autotrophic Denitrification
Sulfur-based autotrophic denitrification processes utilize autotrophic denitrifiers, such as Thiobacillus denitrificans and Thiomicrospira denitrificans, to reduce nitrate to nitrogen gas. Bench-scale experiments were conducted to evaluate the sulfur-based autotrophic denitrification process. This paper addresses three issues: (1) start-up and operation of a CSTR to provide an adequate seed sou...
متن کاملHave we overemphasized the role of denitrification in aquatic ecosystems? A review of nitrate removal pathways
© The Ecological Society of America www.frontiersinecology.org E nitrogen (N) concentrations, often in the form of nitrate, present a water-quality problem of growing concern. Nitrate concentrations in groundwater and rivers in developed areas of the world have risen substantially as a result of the use of synthetic N fertilizers and cultivation of N-fixing crops (Turner and Rabalais 2003). Inc...
متن کاملInduction of denitrification in a pilot-scale trickling filter by adding nitrate at high loading rate.
Oxygen transferred from the liquid phase into a biofilm can be used for aerobic degradation of organic matter and for nitrification. A second possible pathway for the removal of organic matter is denitrification in anoxic zones deeper in the biofilm. At high organic loading rates with insufficient oxygen supply to the biofilm, denitrification could be induced by providing the biofilm with exter...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of Japan Society on Water Environment
سال: 1996
ISSN: 0916-8958,1881-3690
DOI: 10.2965/jswe.19.715