Results 11 to 20 of about 176,735 (260)

Removal of nutrients from aquaculture residual water: A review

open access: yesRevista Ambiente & Água, 2021
Aquaculture plays an important role in providing protein-rich foods, meeting the growing demand for fish. However, aquaculture is a potentially polluting activity, especially with regard to water pollution, due to the improper disposal of wastewater from
Jéssica Mendonça Ribeiro Cargnin   +1 more
doaj   +1 more source

Organic and nutrient removal during start-up period for domestic sewage treatment by an A/O mixed carrier system [PDF]

open access: yesE3S Web of Conferences, 2020
This study combined biofilm method and A/O process reasonably to form the biological treatment system. This experiment focused on the performance of the system for domestic sewage according to the determination of CODCr, ammonia nitrogen, total nitrogen,
Liao Wei, Li Hui-qiang, Yang Ping
doaj   +1 more source

Biological Nutrient Removal in an Intermittently Aerated Bioreactor [PDF]

open access: yesChemical and Biochemical Engineering Quarterly, 2017
The extension of biological processes from carbonaceous impurities removal to nitrogen and phosphorus removal had an impact on the biological system configuration.
J. Derco   +3 more
doaj   +1 more source

Hydroxylamine and nitrite are removed effectively by Streptomyces mediolani strain EM-B2

open access: yesEcotoxicology and Environmental Safety, 2021
Biological nitrogen removal is primarily conducted by bacteria and fungi rather than actinomycetes. However, accumulations of nitrite and hydroxylamine could significantly impair the biological nitrogen removal process. A strain of Streptomyces mediolani,
Tengxia He   +4 more
doaj   +1 more source

Effect of temperature and NH4+-N influent concentration on the nitrogen removal effect of luffa cylindrical sponge carrier sequencing batch biofilm reactor [PDF]

open access: yesE3S Web of Conferences, 2020
In order to improve the efficiency of biological nitrogen removal, the experiment used the luffa cylindrical sponge carrier sequencing batch biofilm reactor to treat domestic sewage, and it studied the temperature on the removal effect of TN in the ...
Li Yafeng   +3 more
doaj   +1 more source

Advances in Biological Nitrogen Removal of Landfill Leachate [PDF]

open access: yesSustainability, 2021
With the development of economy and the improvement of people’s living standard, landfill leachate has been increasing year by year with the increase in municipal solid waste output. How to treat landfill leachate with high efficiency and low consumption has become a major problem, because of its high ammonia nitrogen and organic matter content, low ...
Ye Li, Fan Tang, Dan Xu, Bing Xie
openaire   +1 more source

Advances in Studies on Microbiota Involved in Nitrogen Removal Processes and Their Applications in Wastewater Treatment

open access: yesFrontiers in Microbiology, 2021
The discharge of excess nitrogenous pollutants in rivers or other water bodies often leads to serious ecological problems and results in the collapse of aquatic ecosystems.
Wenning Mai   +8 more
doaj   +1 more source

Application of response surface methodology to study the biological removal of nitrogen from effluent of cattle slaughterhouse in a sequencing batch reactor [PDF]

open access: yesEngenharia Agrícola, 2014
The aim of this study was to evaluate the efficiency of a sequencing batch reactor (SBR) on biological removal of nitrogen from cattle slaughterhouse wastewater by nitrification/denitrification processes.
Adriana N. de Lima   +4 more
doaj   +2 more sources

Biological nitrogen removal with three different SBBR

open access: yesWater Science and Technology, 2007
In order to compare the performance of biofilms growing on different support media, three reactors were fed with municipal wastewater from the city of Garching, Germany, and operated under the sequencing batch procedure. The support media tested have the commercial names of Kaldnes, polyethylene special support for moving bed reactors with approximate ...
A, Valdivia   +2 more
openaire   +2 more sources

Technologies for biological removal and recovery of nitrogen from wastewater

open access: yesBiotechnology Advances, 2020
Water contamination is a growing environmental issue. Several harmful effects on human health and the environment are attributed to nitrogen contamination of water sources. Consequently, many countries have strict regulations on nitrogen compound concentrations in wastewater effluents.
Rahimi, Shadi   +2 more
openaire   +2 more sources

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