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denitrification (82) 82
environmental sciences (58) 58
denitrifying bacteria (54) 54
bacteria (53) 53
index medicus (47) 47
nitrogen (43) 43
removal (32) 32
biotechnology & applied microbiology (29) 29
nitrates (29) 29
nitrification (29) 29
nitrogen removal (28) 28
engineering, environmental (25) 25
nitrate removal (25) 25
biofilms (24) 24
bioreactors (24) 24
activated-sludge (23) 23
water resources (23) 23
nitrate (22) 22
microorganisms (21) 21
analysis (20) 20
carbon (20) 20
wastewater treatment (20) 20
denitrifying submerged filter (18) 18
microbiology (18) 18
reactors (18) 18
biofilm (17) 17
stickstoff (17) 17
water purification - methods (17) 17
carbon source (16) 16
groundwater (15) 15
sewage (15) 15
ammonia (14) 14
chemical oxygen demand (14) 14
nutrient removal (14) 14
phosphorus (14) 14
waste-water (14) 14
nitrites (13) 13
waste water (13) 13
waste-water treatment (13) 13
wastewater (13) 13
bacteria - metabolism (12) 12
denitrifizierende bakterien (12) 12
phosphorus removal (12) 12
purification (12) 12
water (12) 12
water treatment (12) 12
biodegradation, environmental (11) 11
denitrifikation (11) 11
denitrifying-bacteria (11) 11
genes (11) 11
nitrous oxide (11) 11
oxidation (11) 11
sediments (11) 11
sludge (11) 11
aeration (10) 10
ammonium (10) 10
engineering, chemical (10) 10
reduction (10) 10
sequencing batch reactor (10) 10
biomass (9) 9
bioreactors - microbiology (9) 9
biotechnology (9) 9
contaminated groundwater (9) 9
effluent (9) 9
eutrophication (9) 9
life sciences (9) 9
nitratentfernung (9) 9
nitrogen - metabolism (9) 9
reactor (9) 9
sewage-treatment (9) 9
studies (9) 9
water pollutants, chemical - isolation & purification (9) 9
abwasser (8) 8
agricultural engineering (8) 8
anoxia (8) 8
biological denitrification (8) 8
carbon-source (8) 8
chemischer sauerstoffbedarf (8) 8
diversity (8) 8
energy & fuels (8) 8
kohlenstoffquelle (8) 8
microbial community (8) 8
nitrat (8) 8
nitrate-reduction (8) 8
nitrifying bacteria (8) 8
nitrite (8) 8
phylogeny (8) 8
rna, ribosomal, 16s - genetics (8) 8
soils (8) 8
temperature (8) 8
16s ribosomal-rna (7) 7
abundance (7) 7
ammonia-oxidizing bacteria (7) 7
bacteria - classification (7) 7
bacteria - genetics (7) 7
carbon sources (7) 7
dissolved oxygen (7) 7
drinking-water (7) 7
ecology (7) 7
geosciences, multidisciplinary (7) 7
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1. Full Text Effect of dissolved oxygen concentration on nitrate removal from groundwater using a denitrifying submerged filter
by Gómez, M.A and Hontoria, E and González-López, J
Journal of Hazardous Materials, ISSN 0304-3894, 2002, Volume 90, Issue 3, pp. 267 - 278
A unidirectional submerged filter system was employed to purify groundwater contaminated with nitrate by biological denitrification. The influence of the... 
Nitrate | Nitrate reducing bacteria | Biofilm | Denitrification | Denitrifying bacteria | Nitrite | Dissolved oxygen | dissolved oxygen | BACTERIA | nitrate | nitrate reducing bacteria | denitrification | CULTURE | ENVIRONMENTAL SCIENCES | ENGINEERING, CIVIL | nitrite | REACTOR | REDUCTION | ENGINEERING, ENVIRONMENTAL | biofilm | BIOFILTERS | NITROGEN | denitrifying bacteria | WATER | Biodegradation, Environmental | Nitrates - metabolism | Bacteria - metabolism | Biofilms | Oxygen - chemistry | Linear Models | Equipment Design | Water Purification - methods | Filtration - instrumentation
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2. Full Text Effect of temperature over start-up of a groundwater-denitrifying submerged filter inoculated with psychrotolerant bacteria
by Gómez, M. A and González-López, J and La Rua, A. De
Journal of Environmental Science and Health, Part A, ISSN 1093-4529, 09/2009, Volume 44, Issue 12, pp. 1298 - 1305
Inoculation of a submerged filter was carried out using three bacterial strains previously selected on the basis of their psychrotolerance and high... 
temperature | biofilm formation | submerged filter | nitrite | Psychrotolerant denitrifying bacteria | Temperature | Nitrite | Biofilm formation | Submerged filter | ENVIRONMENTAL SCIENCES | REMOVAL | ENGINEERING, ENVIRONMENTAL | DENITRIFICATION | WASTE-WATER | CONTAMINATED GROUNDWATER | ADHERENCE | Bacteria - metabolism | Nitrogen - metabolism | Filtration | Nitrogen - analysis | Water Pollutants, Chemical - analysis | Water Pollutants, Chemical - metabolism | Biofilms | Bacteria - classification | Water Purification - methods | Water Supply - analysis | Pseudomonas - metabolism | Water Microbiology | Toxicology | Toxic | Health | Bacteria | Submerged | Hazardous | Environmental engineering | Index Medicus
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3. Full Text Influence of Ethanol Concentration on Biofilm Bacterial Composition from a Denitrifying Submerged Filter Used for Contaminated Groundwater
by GOMEZ, MIGUEL ANGEL and GALVEZ, JUAN MIGUEL and HONTORIA, ERNESTO and GONZÁLEZ-LÓPEZ, JESÚS
Journal of Bioscience and Bioengineering, ISSN 1389-1723, 2003, Volume 95, Issue 3, pp. 245 - 251
The influence of the ethanol concentration on the composition and activity of a developed biofilm in a denitrifying submerged unidirectional filter was... 
nitrite | nitrate | nitrate reducing bacteria | ethanol | denitrifying bacteria | biofilm composition | Denitrifying bacteria | Biofilm composition | Nitrate | Nitrite | Ethanol | Nitrate reducing bacteria
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4. Full Text Influence of temperature on microbial colonisation of clayey schist as a support media of a submerged filter for groundwater denitrification
by De la Rua, A and Rodelas, B and Gonzalez-Lopez, J and Gomez, MA
WATER SCIENCE AND TECHNOLOGY, ISSN 0273-1223, 2007, Volume 55, Issue 8-9, pp. 165 - 172
The effect of temperature on biofilm formation and denitrification activity was evaluated. Assays were made in a lab-scale submerged filter for the... 
DENITRIFYING BACTERIA | WATER RESOURCES | groundwater | denitrification | OXYGEN | ENVIRONMENTAL SCIENCES | submerged filter | CARBON SOURCE | ENGINEERING, ENVIRONMENTAL | biofilm | selective inoculation | temperature | DYNAMICS | NITRATE REMOVAL | CONTAMINATED GROUNDWATER | BIOFILM FORMATION | Nitrogen - metabolism | Temperature | Filtration | Biofilms - growth & development | Nitrites - metabolism | Nitrites - isolation & purification | Nitrates - metabolism | Water Pollutants, Chemical - metabolism | Water Pollutants, Chemical - isolation & purification | Pseudomonas - physiology | Aluminum Silicates | Nitrates - isolation & purification | Water Supply | Nitrogen - isolation & purification | Water Purification - methods | Removal | Schists | Pseudomonas | Strain | Environments | Groundwater pollution | Microorganisms | Inoculation | Microbiota | Biofilms | Groundwater | Schist | Temperature effects | Capacity | Denitrification | Colonization | Ground water
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5. Full Text Influence of ethanol concentration on biofilm bacterial composition from a denitrifying submerged filter used for contaminated groundwater
by Gomez, Miguel Angel and Galvez, Juan Miguel and Hontoria, Ernesto and González-López, Jesús
Journal of Bioscience and Bioengineering, ISSN 1389-1723, 2003, Volume 95, Issue 3, pp. 245 - 251
The influence of the ethanol concentration on the composition and activity of a developed biofilm in a denitrifying submerged unidirectional filter was... 
nitrite | nitrate | nitrate reducing bacteria | ethanol | denitrifying bacteria | biofilm composition | DENITRIFICATION | ACTIVATED-SLUDGE | FOOD SCIENCE & TECHNOLOGY | NITRITE ACCUMULATION | INHIBITION | REACTOR | CARBON SOURCE | BIOTECHNOLOGY & APPLIED MICROBIOLOGY | NITROGEN | NITRATE REMOVAL | WATER
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6. Full Text Behavior of autotrophic denitrification and heterotrophic denitrification in an intensified biofilm-electrode reactor for nitrate-contaminated drinking water treatment
by Zhao, Yingxin and Zhang, Baogang and Zhang, Peng and Zhang, Zhenya and Feng, Chuanping and Huang, Fangyuan and Yang, Yingnan and Sugiura, Norio
Bioresource Technology, ISSN 0960-8524, 03/2012, Volume 107, pp. 159 - 165
► Intensified biofilm-electrode reactor using cooperative denitrification was developed. ► Cathode was embedded in the fiber carriers in the reactor. ► The... 
Drinking water | Autotrophic denitrification | Cooperative effect | Electrochemical effect | Heterotrophic denitrification | SYSTEM | BACTERIA | ENERGY & FUELS | HYDROGENOTROPHIC DENITRIFICATION | SULFUR | IRON | REMOVAL | AGRICULTURAL ENGINEERING | BIOTECHNOLOGY & APPLIED MICROBIOLOGY | CARBON-SOURCES | DENITRIFYING SUBMERGED FILTER | GROUNDWATER | Electrodes | Water Pollutants, Chemical - isolation & purification | Biofilms | Nitrites - chemistry | Water | Denitrification | Aquatic resources | Purification | Nitrate removal | Ammonia | Reactors | Nitrites | Running | Nitrates | Optimization
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7. Full Text Effect of dissolved oxygen on heterotrophic denitrification using poly(butylene succinate) as the carbon source and biofilm carrier
by Luo, Guozhi and Li, Li and Liu, Qian and Xu, Guimei and Tan, Hongxin
Bioresource Technology, ISSN 0960-8524, 11/2014, Volume 171, Issue 1, pp. 152 - 158
The effect of dissolved oxygen (DO) on heterotrophic denitrification using poly(butylene succinate) as the carbon source and biofilm carrier was evaluated in a... 
Poly(butylene succinate) | Dissolved oxygen | Biodegradable polymers | Heterotrophic denitrification | ENERGY & FUELS | ACTIVATED-SLUDGE | WATER DENITRIFICATION | PHYLOGENETIC TREES | AQUACULTURE SYSTEMS | INHIBITION | AGRICULTURAL ENGINEERING | BIOTECHNOLOGY & APPLIED MICROBIOLOGY | DENITRIFYING SUBMERGED FILTER | DEGRADATION | NITRATE REMOVAL | NITRITE | GROUNDWATER | Carbon - metabolism | Bacteria - metabolism | Microscopy, Electron, Scanning | Heterotrophic Processes - physiology | DNA Primers - genetics | Oxygen - metabolism | Butylene Glycols - metabolism | Denaturing Gradient Gel Electrophoresis | Polymerase Chain Reaction | RNA, Ribosomal, 16S - genetics | Denitrification - physiology | Water Purification - methods | Polymers - metabolism | Denitrification | Butylene
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8. Full Text Denitrification of nitrate contaminated groundwater with a fiber-based biofilm reactor
by Wang, Qinghong and Feng, Chuanping and Zhao, Yingxin and Hao, Chunbo
Bioresource Technology, ISSN 0960-8524, 2009, Volume 100, Issue 7, pp. 2223 - 2227
A fiber-based biofilm reactor was developed using a laboratory-scale apparatus for treatment of nitrate-contaminated groundwater. Denitrification bacteria were... 
Denitrification | Nitrate | Nitrite | Groundwater | Biofilm reactor | BIOLOGICAL DENITRIFICATION | SYSTEM | ENERGY & FUELS | MEMBRANE BIOREACTOR | REMOVAL | AGRICULTURAL ENGINEERING | BIOTECHNOLOGY & APPLIED MICROBIOLOGY | WASTE-WATER | DENITRIFYING SUBMERGED FILTER | DRINKING-WATER | Biodegradation, Environmental | Bacteria - metabolism | Waste Disposal, Fluid | Nitrogen | Carbon | Oxygen - analysis | Water Pollutants, Chemical - isolation & purification | Biofilms | Time Factors | Bioreactors | Soil | Nitrates - isolation & purification | Water Supply | Hydrogen-Ion Concentration | Soils | Nitrogen content | Sewage | Purification | Nitrites | Water, Underground | Sludge | Index Medicus
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9. Full Text Synthesis and physicochemical characterization of Zn/Al chloride layered double hydroxide and evaluation of its nitrate removal efficiency
by Islam, Mahamudur and Patel, Rajkishore
Desalination, ISSN 0011-9164, 2010, Volume 256, Issue 1, pp. 120 - 128
Deleterious effects of nitrate on health are well known. A laboratory study was conducted to investigate the ability of Zn–Al–Cl layered double hydroxide for... 
Hydrotalcites | Methemoglobinaemia | Adsorption isotherms | Nitrate | Layered double hydroxide | Thermodynamic parameter | ION-EXCHANGE/CATALYTIC PROCESS | HYDROTALCITE-LIKE COMPOUND | DENITRIFICATION | WATER RESOURCES | ADSORPTION | AQUEOUS-SOLUTION | ENGINEERING, CHEMICAL | REDUCTION | DENITRIFYING SUBMERGED FILTER | POWDER | CONTAMINATED GROUNDWATER | DRINKING-WATER | Nitrate removal | Hydroxides | Adsorption | Aluminum | Isotherms | Chlorides | Nitrates
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10. Full Text Nitrate sorption by thermally activated Mg/Al chloride hydrotalcite-like compound
by Islam, Mahamudur and Patel, Rajkishore
Journal of Hazardous Materials, ISSN 0304-3894, 2009, Volume 169, Issue 1, pp. 524 - 531
A laboratory study was conducted to investigate the ability of Mg–Al–Cl hydrotalcite-like compound for the removal of nitrate from synthetic nitrate solution.... 
Hydrotalcites | Adsorption isotherms | Nitrate | Thermodynamic parameter | ION-EXCHANGE/CATALYTIC PROCESS | ZERO-VALENT IRON | DENITRIFICATION | AQUEOUS-SOLUTION | ENVIRONMENTAL SCIENCES | REMOVAL | REDUCTION | ENGINEERING, ENVIRONMENTAL | DENITRIFYING SUBMERGED FILTER | POWDER | CONTAMINATED GROUNDWATER | WATER | Magnesium Hydroxide - chemistry | Thermodynamics | Pilot Projects | Water Pollutants, Chemical - isolation & purification | Adsorption | Solutions | Magnesium Hydroxide - chemical synthesis | Aluminum Hydroxide - chemistry | Aluminum Hydroxide - chemical synthesis | Nitrates - isolation & purification | Kinetics | Hydrogen-Ion Concentration | Index Medicus
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11. Full Text Overview of in-situ applicable nitrate removal processes
by Della Rocca, Claudio and Belgiorno, Vincenzo and Meriç, Sureyya
Desalination, ISSN 0011-9164, 2007, Volume 204, Issue 1, pp. 46 - 62
Nitrate contamination of groundwater has became an environmental and health problem in developed and developing countries. Nitrate pollution is caused by the... 
Solid supporting media | Chemical reduction | Nitrate-rich water | Groundwater | Zero-valent iron (ZVI) | Autotrophic denitrification | Bioremediation | Permeable reactive barrier | In-situ treatment | Heterotrophic denitrification | BIOLOGICAL DENITRIFICATION | in-situ treatment | GRANULAR IRON | bioremediation | heterotrophic denitrification | ZERO-VALENT IRON | WATER RESOURCES | groundwater | zero-valent iron (ZVI) | MEMBRANE-BIOFILM REACTOR | ELEMENTAL SULFUR | ENGINEERING, CHEMICAL | nitrate-rich water | chemical reduction | CARBON SOURCE | permeable reactive barrier | DENITRIFYING SUBMERGED FILTER | autotrophic denitrification | DRINKING-WATER | CONTAMINATED GROUNDWATER | solid supporting media | Water, Underground
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12. Full Text Intensified nitrogen and phosphorus removal in a novel electrolysis-integrated tidal flow constructed wetland system
by Ju, Xinxin and Wu, Shubiao and Zhang, Yansheng and Dong, Renjie
Water Research, ISSN 0043-1354, 08/2014, Volume 59, pp. 37 - 45
A novel electrolysis-integrated tidal flow constructed wetland (CW) system was developed in this study. The dynamics of intensified nitrogen and phosphorus... 
Tidal flow constructed wetlands | Sulphide | Nitrogen transformation | Phosphorus removal | Electrolysis | WASTE-WATER TREATMENT | LEVEL FLUCTUATION | ORGANIC-MATTER | HYDROGENOTROPHIC DENITRIFICATION | WATER RESOURCES | ENGINEERED WETLANDS | ENVIRONMENTAL SCIENCES | ENGINEERING, ENVIRONMENTAL | REED BEDS | DENITRIFYING SUBMERGED FILTER | HORIZONTAL SUBSURFACE FLOW | NITRATE REMOVAL | ACID-MINE DRAINAGE | Waste Disposal, Fluid - methods | Nitrogen - chemistry | Phosphorus - chemistry | Water Pollutants, Chemical - chemistry | Water Movements | Wetlands | Aquatic resources | Iron compounds | Rain and rainfall | Sulfides | Dynamics | Bacteria | Iron | Dynamical systems
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13. Full Text Long-term study of nitrate, nitrite and pesticide removal from groundwater: A two-stage biological process
by Cesar, Andrea and Roš, Milenko
International Biodeterioration & Biodegradation, ISSN 0964-8305, 08/2013, Volume 82, pp. 117 - 123
The simultaneous biological removal of nitrate, atrazine, deethylatrazine and metolachlor, chemicals frequently encountered in groundwater, in a two-stage... 
Simultaneous pesticides removal | Groundwater | Two-stage continuous bioreactor | Biodenitrification | ATRAZINE DEGRADATION | DENITRIFICATION | SAND FILTER | SUBMERGED FILTER | ENVIRONMENTAL SCIENCES | DENITRIFYING CONDITIONS | NITRIFICATION | BIOTECHNOLOGY & APPLIED MICROBIOLOGY | BIOREACTOR | SEQUENCING BATCH REACTOR | DRINKING-WATER | Water, Underground | Denitrification | Herbicides
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14. Full Text Pump-and-treat method to remove nitrate from groundwater with liquor as the carbon source
by Yudao, Chen and Yaping, Cheng and Yaping, Jiang and Yani, Yan and Zhiteng, Liu and Qiling, Tong and Zisen, Sun
Environmental Earth Sciences, ISSN 1866-6280, 06/2017, Volume 76, Issue 11, p. 1
As a common pollutant in groundwater, nitrate poses a significant threat to drinking water safety, especially in rural areas. A feasible solution to this... 
Nitrate removal | Denitrification | Liquor | Pump-and-treat | Groundwater | CHINA | WATER RESOURCES | RATES | ENVIRONMENTAL SCIENCES | GEOSCIENCES, MULTIDISCIPLINARY | DENITRIFYING SUBMERGED FILTER | ETHANOL | BIOREMEDIATION | NITRITE | CONTAMINATED GROUNDWATER | DRINKING-WATER | Water | Water, Underground | Liquors | Management | Analysis | Methods | Removal | Drinking water | Methodology | Nitrates | Accumulation | Nitrates in groundwater | Bacteria | Safety | Carbon sources | Ground water | Carbon/nitrogen ratio | Rural areas | Feasibility studies | Acetate | Nitrogen | Metabolism | Carbon | Intermediates | Groundwater pollution | Denitrifying bacteria | Feasibility | Pollutant removal | Dissolved oxygen | Acetic acid
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15. Full Text Role of degree of saturation in denitrification of unsaturated sand specimens
by Rao, Sudhakar M and Malini, R
Environmental Earth Sciences, ISSN 1866-6280, 12/2014, Volume 72, Issue 11, pp. 4371 - 4380
Nitrate contamination of groundwater arises from anthropogenic activities, such as, fertilizer and animal manure applications and infiltration of... 
Earth Sciences | Hydrology/Water Resources | Biogeosciences | Vadose zone | Geology | Geochemistry | Denitrification | Pore water | Terrestrial Pollution | Carbon source | Environmental Science and Engineering | ORGANIC-MATTER | WATER RESOURCES | FOREST SOILS | NITROUS-OXIDE | ENVIRONMENTAL SCIENCES | GEOSCIENCES, MULTIDISCIPLINARY | LABORATORY MEASUREMENTS | CONSTRUCTED WETLANDS | DENITRIFYING SUBMERGED FILTER | NITRATE REMOVAL | CONTAMINATED GROUNDWATER | Organic fertilizers | Water, Underground | Humic acid | Green technology | Aquifers | Groundwater pollution | Contaminated sediments | Carbon
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16. Full Text Evaluation of drinking water quality produced by ultrafiltration membranes in distribution systems
by Álvarez-Arroyo, Rocío and Rojas-Serrano, Fátima and Garralón, Gloria and Plaza, Fidel and Pérez Pérez, Jorge Ignacio and Gómez Nieto, Miguel Ángel
Desalination and Water Treatment, ISSN 1944-3994, 12/2015, Volume 56, Issue 13, pp. 3447 - 3455
The final quality of the drinking water in the consumers' tap depends on the purification treatment applied, but also on its route through the drinking water... 
Drinking water | DWDS | Ultrafiltration | THM | Biofilm | Distribution system | NOM | CONTAMINANTS | RESERVOIR | CARBON | BIOFILMS | ORGANIC-MATTER | WATER RESOURCES | ENGINEERING, CHEMICAL | REMOVAL | TEMPERATURE | DEPOSITS | DENITRIFYING SUBMERGED FILTER | DISINFECTION | Water treatment | Membranes | Fouling | Biofilms | Water quality | Bacteria | Pretreatment
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17. Full Text Denitrification of nitrate-contaminated groundwater using biodegradable snack ware as carbon source under low-temperature condition
by Wang, X M and Wang, X M and Wang, J L and Wang, J L
International Journal of Environmental Science and Technology, ISSN 1735-1472, 1/2012, Volume 9, Issue 1, pp. 113 - 118
A considerable increase in nitrate concentration in groundwater has been observed in many countries. This research focuses on nitrate removal using... 
Environment, general | Ecotoxicology | Environment | Packed bed reactor | Solid carbon source | Waste Water Technology / Water Pollution Control / Water Management / Aquatic Pollution | Biodenitrification |