Nitrite Removal by Autotrophic Denitrification Using Sulfur Particles
نویسندگان
چکیده
منابع مشابه
Sulfur-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...
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The present lab-scale research reveals the potential of implementation of an oxygen-limited autotrophic nitrification-denitrification (OLAND) system with normal nitrifying sludge as the biocatalyst for the removal of nitrogen from nitrogen-rich wastewater in one step. In a sequential batch reactor, synthetic wastewater containing 1 g of NH4+-N liter-1 and minerals was treated. Oxygen supply to ...
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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...
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A combined bioelectrochemical and sulfur autotrophic denitrification process for drinking water treatment was put forward and investigated extensively in this paper. In this new process, the bioelectrochemical denitrification was carried out in the upper part of the reactor while sulfur denitrification in the lower part. The H+ produced in Sulfur Part could be consumed by hydrogen denitrificati...
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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...
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ژورنال
عنوان ژورنال: Korean Journal of Environmental Agriculture
سال: 2010
ISSN: 1225-3537
DOI: 10.5338/kjea.2010.29.3.221