PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 20540490-4 2010 The model can be used to predict nitrogen removal performance with different influent NH(4)(+)-N and COD concentrations and under various DO concentrations. Nitrogen 33-41 small nuclear ribonucleoprotein polypeptides B and B1 Homo sapiens 101-104 16701529-7 2004 A total of 97-99% dinitrotoluene removal efficiencies in the reactors containing COD to NO(3)-N ratio of 2 and 3.75 after 20 days of incubation period. Nitrogen 88-89 small nuclear ribonucleoprotein polypeptides B and B1 Homo sapiens 81-84 21076207-5 2010 In this case, the scenario employing septic-tank improvement in conjunction with sewage development may be effective for a rapid decrease of COD in locations where septic tanks are widely used under poor maintenance conditions and nitrogen pollution is not serious compared to COD. Nitrogen 231-239 small nuclear ribonucleoprotein polypeptides B and B1 Homo sapiens 141-144 16459807-1 2005 Wastewater discharge from coal refining plants contains a number of biologically toxic compounds; 2000-2500 mg/l of COD of which 40% is composed of phenol, 100-400 mg/l of thiocyanate, 10-40 mg/l of cyanide, 100-250 mg/l of NH4+-N and 150-300 mg/l of total nitrogen. Nitrogen 257-265 small nuclear ribonucleoprotein polypeptides B and B1 Homo sapiens 116-119 17546979-3 2007 The results demonstrated that at a total nitrogen (TN) loading of 18 mg/L.h, a TN removal efficiency in keeping with and even exceeding the theoretical maximum efficiency based on the level of internal recycle, was possible and a nitrification rate of 15 mg/L.h was sustained with a HRT of only 2.5 h at 15 degrees C. Furthermore, soluble COD and BOD5 in the effluent of the pilot plant were reduced to levels well below most regulatory discharge limits. Nitrogen 41-49 small nuclear ribonucleoprotein polypeptides B and B1 Homo sapiens 339-342 16701529-4 2004 Similarly, for the COD to NO(3)-N ratios varying between 2 and 3.75 maximum denitrification was observed. Nitrogen 26-27 small nuclear ribonucleoprotein polypeptides B and B1 Homo sapiens 19-22 15137438-1 2004 As a first step in treatment of high strength, strong nitrogenous landfill leachates (total COD--9.66-20.56 g/l, total nitrogen 780-1,080 mg/l), the performance of laboratory UASB reactors has been investigated under sub-mesophilic (19+/-3 degrees C) and psychrophilic (10+/-2 degrees C) conditions. Nitrogen 54-62 small nuclear ribonucleoprotein polypeptides B and B1 Homo sapiens 92-95 11202731-9 2001 It has been found that these processes were able to remove nitrogen content almost completely and simultaneously, the removal of organic matter (expressed as BOD5 and COD), color and turbidity were sufficiently achieved. Nitrogen 59-67 small nuclear ribonucleoprotein polypeptides B and B1 Homo sapiens 167-170 15137438-3 2004 The psychrophilic treatment conducted under the average HRT of 2.44 days and the average OLR of 4.2 g COD/l/day showed an average total COD removal of 58% giving effluents more suitable for subsequent biological nitrogen removal. Nitrogen 212-220 small nuclear ribonucleoprotein polypeptides B and B1 Homo sapiens 102-105 15137438-3 2004 The psychrophilic treatment conducted under the average HRT of 2.44 days and the average OLR of 4.2 g COD/l/day showed an average total COD removal of 58% giving effluents more suitable for subsequent biological nitrogen removal. Nitrogen 212-220 small nuclear ribonucleoprotein polypeptides B and B1 Homo sapiens 136-139 15137438-6 2004 On the contrary, psychrophilic anaerobic effluents (richer in COD compared to the submesophilic ones) were more suitable for subsequent aerobic-anoxic treatment giving the total N removal of 95 and 92% at 19 and 10 degrees C, respectively. Nitrogen 178-179 small nuclear ribonucleoprotein polypeptides B and B1 Homo sapiens 62-65 14682566-3 2003 However, based on this SCOD removal in the nitrification step, a consequent post-denitrification process without nitrate recycle and dosage of external carbon sources has been proven to reach substantial nitrate elimination of up to 20 mg nitrogen per litre at COD/N-ratios of approx. Nitrogen 239-247 small nuclear ribonucleoprotein polypeptides B and B1 Homo sapiens 24-27 14682566-5 2003 At such COD/N-ratios, suitable nitrogen elimination seems to be possible, because the bioflocs of settled sewage, produced so far by SCOD oxidation and entrapment of particulate COD, are passing through the nitrification process having a substantial contribution to the denitrification rate additionally to the remaining SCOD. Nitrogen 31-39 small nuclear ribonucleoprotein polypeptides B and B1 Homo sapiens 8-11 14682566-5 2003 At such COD/N-ratios, suitable nitrogen elimination seems to be possible, because the bioflocs of settled sewage, produced so far by SCOD oxidation and entrapment of particulate COD, are passing through the nitrification process having a substantial contribution to the denitrification rate additionally to the remaining SCOD. Nitrogen 31-39 small nuclear ribonucleoprotein polypeptides B and B1 Homo sapiens 134-137 34958906-4 2022 With influent concentration of NH4+-N of 909+-101 mg-N/L and COD of 731+-26 mg/L, the nitrogen removal efficiency was 86.8% (nitrogen loading rate of 1.21 g-TN/L/d) and the COD removal efficiency was 50.5% (COD loading rate at 0.98 g-COD/L/d). Nitrogen 86-94 small nuclear ribonucleoprotein polypeptides B and B1 Homo sapiens 61-64 34958906-4 2022 With influent concentration of NH4+-N of 909+-101 mg-N/L and COD of 731+-26 mg/L, the nitrogen removal efficiency was 86.8% (nitrogen loading rate of 1.21 g-TN/L/d) and the COD removal efficiency was 50.5% (COD loading rate at 0.98 g-COD/L/d). Nitrogen 125-133 small nuclear ribonucleoprotein polypeptides B and B1 Homo sapiens 61-64 34958906-6 2022 The nitritation and anammox route was predominant in nitrogen removal, while COD oxidation and microbe proliferation played the main role in COD removal. Nitrogen 53-61 small nuclear ribonucleoprotein polypeptides B and B1 Homo sapiens 77-80 32778254-1 2020 A Fenton-like reaction and anaerobic ammonium oxidation (anammox) were combined to construct a novel process named FenTaMox for removing nitrogen (N) and organic carbon (measured as chemical oxidation demand (COD)). Nitrogen 137-145 small nuclear ribonucleoprotein polypeptides B and B1 Homo sapiens 209-212 16349813-7 1968 Approximately 90% removal of the carbon source (expressed as chemical oxygen demand, COD) was attained with a low level of supplemental nitrogen (COD/N = 70:1) and a fairly low reactor detention time (4 hr). Nitrogen 136-144 small nuclear ribonucleoprotein polypeptides B and B1 Homo sapiens 85-88 33155359-7 2021 The higher nitrogen removal of the HAOBR at the reflux ratio of 300% is attributed to the presence of the anammox in the 1st anoxic compartment, which is mainly due to the lower COD concentration in the compartment at the higher reflux ratio. Nitrogen 11-19 small nuclear ribonucleoprotein polypeptides B and B1 Homo sapiens 178-181 32778254-1 2020 A Fenton-like reaction and anaerobic ammonium oxidation (anammox) were combined to construct a novel process named FenTaMox for removing nitrogen (N) and organic carbon (measured as chemical oxidation demand (COD)). Nitrogen 147-148 small nuclear ribonucleoprotein polypeptides B and B1 Homo sapiens 209-212 28811146-1 2017 The carbon-nitrogen ratio (COD/NH4+-N) is an important factor affecting nitrification and denitrification in wastewater treatment; this factor also influences nitrous oxide (N2O) emissions. Nitrogen 11-19 small nuclear ribonucleoprotein polypeptides B and B1 Homo sapiens 27-30 31784829-2 2020 This study showed that the anammox process deteriorated, with N-removal efficiencies rapidly decreasing from 87.2 to 45.7% when reactors were exposed to COD shocks of 1.12, 2.24 and 3.36 g L-1 (COD/N ratio 2, 4 and 6). Nitrogen 62-63 small nuclear ribonucleoprotein polypeptides B and B1 Homo sapiens 153-156 30219496-0 2019 Effects of influent COD/TN ratio on nitrogen removal in integrated constructed wetland-microbial fuel cell systems. Nitrogen 36-44 small nuclear ribonucleoprotein polypeptides B and B1 Homo sapiens 20-26 30219496-1 2019 Given that the relationship between the influent C/N (generally referred to as COD/TN) ratio and nitrogen removal has not been well understood in integrated constructed wetland-microbial fuel cell (CW-MFC) systems, this study aimed to investigate the effects of COD/TN ratio on nitrogen removal in CW-MFCs. Nitrogen 97-105 small nuclear ribonucleoprotein polypeptides B and B1 Homo sapiens 79-85 27023380-2 2016 At a COD/N ratio of 2.8 (COD, 390mg L(-1)) ammonium removal efficiency was 66%, while nitrite removal remained high (99%). Nitrogen 9-10 small nuclear ribonucleoprotein polypeptides B and B1 Homo sapiens 25-28 28811146-8 2017 At a low influent COD/NH4+-N ratio (2.7), the N2O conversion rate was greater when there were more biodegradable carbon substrates. Nitrogen 22-23 small nuclear ribonucleoprotein polypeptides B and B1 Homo sapiens 18-21 27396293-7 2016 The results suggested that immobilized nitrifier pellets combined with high influent COD/N ratios could effectively improve the nitrogen removal performance in CWs. Nitrogen 128-136 small nuclear ribonucleoprotein polypeptides B and B1 Homo sapiens 85-88 27023380-3 2016 However, at a COD/N ratio of 5.0 (COD, 300mg L(-1)), ammonium and nitrite removal efficiencies were high (84% and 99%, respectively). Nitrogen 18-19 small nuclear ribonucleoprotein polypeptides B and B1 Homo sapiens 34-37 21090303-7 2010 When the influent concentration of COD is lower than 350 mg/L, the promotion of C/N ratio which in the range of 10-20 is obvious, and the promotion decreases along with the increase of C/N ratio. Nitrogen 82-83 small nuclear ribonucleoprotein polypeptides B and B1 Homo sapiens 35-38 25006970-2 2014 N-removal over nitrite requires less COD, which is particularly interesting if COD is the limiting parameter for nutrient removal. Nitrogen 0-1 small nuclear ribonucleoprotein polypeptides B and B1 Homo sapiens 37-40 25006970-2 2014 N-removal over nitrite requires less COD, which is particularly interesting if COD is the limiting parameter for nutrient removal. Nitrogen 0-1 small nuclear ribonucleoprotein polypeptides B and B1 Homo sapiens 79-82 26595179-1 2016 This study aimed to evaluate the influence of COD/N ratio and carbon source on simultaneous nitrogen and carbon removal processes. Nitrogen 92-100 small nuclear ribonucleoprotein polypeptides B and B1 Homo sapiens 46-49 26595179-6 2016 At lower COD/N ratios, NH4(+)-N oxidation efficiencies were higher than 90%. Nitrogen 13-14 small nuclear ribonucleoprotein polypeptides B and B1 Homo sapiens 9-12 26595179-6 2016 At lower COD/N ratios, NH4(+)-N oxidation efficiencies were higher than 90%. Nitrogen 23-24 small nuclear ribonucleoprotein polypeptides B and B1 Homo sapiens 9-12 23097182-4 2013 When the COD/N ratio was lowered from 13 to 3, we found up to 244% higher ammonia removal rate but at least 19% lower ammonia removal efficiency. Nitrogen 13-14 small nuclear ribonucleoprotein polypeptides B and B1 Homo sapiens 9-12 21360884-7 2010 When COD/N were 6-7, it can meet the requirement for carbon source during aerobic denitrification, the removal rate of nitrate nitrogen and COD were up to 96%, 85% respectively. Nitrogen 9-10 small nuclear ribonucleoprotein polypeptides B and B1 Homo sapiens 5-8 21360884-7 2010 When COD/N were 6-7, it can meet the requirement for carbon source during aerobic denitrification, the removal rate of nitrate nitrogen and COD were up to 96%, 85% respectively. Nitrogen 9-10 small nuclear ribonucleoprotein polypeptides B and B1 Homo sapiens 140-143 21360884-7 2010 When COD/N were 6-7, it can meet the requirement for carbon source during aerobic denitrification, the removal rate of nitrate nitrogen and COD were up to 96%, 85% respectively. Nitrogen 127-135 small nuclear ribonucleoprotein polypeptides B and B1 Homo sapiens 5-8 21090303-7 2010 When the influent concentration of COD is lower than 350 mg/L, the promotion of C/N ratio which in the range of 10-20 is obvious, and the promotion decreases along with the increase of C/N ratio. Nitrogen 187-188 small nuclear ribonucleoprotein polypeptides B and B1 Homo sapiens 35-38