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1. Evaluation of Two Products Recently Introduced as Nitrification Inhibitors

Author:
Goos, R. Jay
Source:
Communications in soil science and plant analysis 2019 v.50 no.5 pp. 503-511
ISSN:
1532-2416
Subject:
nitrification; nitrification inhibitors,   etc   ; ammonium thiosulfate; dicyandiamide; liquid fertilizers; microencapsulation; nitrapyrin; polymers; sandy soils; urea;     Show all 10 Subjects
Abstract:
... This study compared the relative effectiveness of two products recently introduced as nitrification inhibitors with other materials used to inhibit nitrification. Four soils were treated with 0, 0.2, 1, 5, and 25 mg kg⁻¹ of nitrapyrin (NP), a new microencapsulated nitrapyrin product (ENP), dicyandiamide (DCD), a new maleic-itaconic polymer product (MIP), and ammonium thiosulfate (ATS). The soils w ...
DOI:
10.1080/00103624.2019.1566466

2. Effect of quorum quenching on biofouling and ammonia removal in membrane bioreactor under stressful conditions

Author:
Yu, Huarong; Qu, Fangshu; Zhang, Xiaolei; Wang, Peng; Li, Guibai; Liang, Heng
Source:
Chemosphere 2018 v.199 pp. 114-121
ISSN:
0045-6535
Subject:
nitrification; nitrification inhibitors,   etc   ; acetonitrile; ammonia; bacteria; biofouling; membrane bioreactors; temperature;     Show all 8 Subjects
Abstract:
... Quorum quenching (QQ) has been used to control biofouling in membrane bioreactors (MBRs), but the effect of QQ on the performance of MBR has not been systematically studied. This study investigated the effect of QQ on ammonia removal in MBR especially in some stressful conditions. The results showed that membrane fouling was effectively alleviated by QQ in all conditions. For the short HRT (3.94 h ...
DOI:
10.1016/j.chemosphere.2018.02.022

3. Free nitrous acid pretreatment of sludge to achieve nitritation: The effect of sludge concentration

Author:
Wang, Zenghua; Wang, Bo; Gong, Xiaofei; Qiao, Xin; Peng, Yongzhen
Source:
Bioresource technology 2019 v.285 pp. 121358
ISSN:
0960-8524
Subject:
nitrification,   etc   ; bacteria; nitrites; nitrous acid; polymers; sludge; total suspended solids;     Show all 7 Subjects
Abstract:
... This study investigated the effect of sludge concentration (expressed by mixed liquor volatile suspended solids, MLVSS) on free nitrous acid (FNA) pretreatment strategy to achieve nitritation. Results showed when FNA was 0.308 mgHNO2-N/L, nitrite oxidizing bacteria (NOB) activity increased by 70.2% as MLVSS increased from 8.4 to 16.8 g/L. Nitrite accumulation ceased as MLVSS increased to 12.6 g/L, ...
DOI:
10.1016/j.biortech.2019.121358

4. Nitrifying moving bed biofilm reactor: Performance at low temperatures and response to cold-shock

Author:
Ahmed, Warsama; Tian, Xin; Delatolla, Robert
Source:
Chemosphere 2019 v.229 pp. 295-302
ISSN:
0045-6535
Subject:
nitrification,   etc   ; exposure duration; models; moving bed biofilm reactors; temperature;     Show all 5 Subjects
Abstract:
... In contrast with suspended growth systems, attached growth technologies such as the moving bed biofilm reactors (MBBR) have recently demonstrated significant nitrification rates at temperatures as low as 1 °C. The purpose of this study was to investigate the performance of the nitrifying MBBR system at elevated municipal concentrations with exposures to low temperatures and cold-shock conditions d ...
DOI:
10.1016/j.chemosphere.2019.04.176

5. Rapid control of activated sludge bulking and simultaneous acceleration of aerobic granulation by adding intact aerobic granular sludge

Author:
Zou, Jinte; Pan, Jiyang; Wu, Shuyun; Qian, Mengjie; He, Zhanfei; Wang, Binbin; Li, Jun
Source:
The Science of the total environment 2019 v.674 pp. 105-113
ISSN:
0048-9697
Subject:
nitrification,   etc   ; Rhodobacteraceae; Thauera; Zoogloea; activated sludge; biomass; microbial communities;     Show all 7 Subjects
Abstract:
... The feasibility of rapidly controlling activated sludge bulking and accelerating aerobic sludge granulation was evaluated by adding intact aerobic granular sludge (AGS) to the bulking activated sludge (BAS) reactor. Two ratios of AGS to BAS (0.2 in the first reactor (R1), and 0.4 in the second reactor (R2)) were tested. The results indicate that the addition of AGS immediately improved the settlin ...
DOI:
10.1016/j.scitotenv.2019.04.006

6. Impact of different running conditions on performance of biofilters treating secondary effluent during start-up

Author:
Zhang, Shiyang; Zhu, Changbo; Xia, Shibin; Li, Meng
Source:
Bioresource technology 2019 v.281 pp. 168-178
ISSN:
0960-8524
Subject:
nitrification,   etc   ; aeration; biofilters; carbon; denitrification; glucose; sodium acetate; China;     Show all 8 Subjects
Abstract:
... In this study, the impact of different aeration sequences, hydraulic retention time (HRT), aeration time ratios and external carbon types on performance of biofilters treating secondary effluent during start-up was explored. For an intermittently aerated nitrifying filter, the adjustment of aeration sequence with prior nitrification or denitrification had no significant impact on overall performan ...
DOI:
10.1016/j.biortech.2019.02.094

7. Ex situ simultaneous nitrification-denitrification and in situ denitrification process for the treatment of landfill leachates

Author:
Li, Jie; Wu, Beibei; Li, Qian; Zou, Yuzhu; Cheng, Zhaowen; Sun, Xiaojie; Xi, Beidou
Source:
Waste management 2019 v.88 pp. 301-308
ISSN:
0956-053X
Subject:
nitrification,   etc   ; bioreactors; denitrification; energy costs; landfill leachates; landfills; waste management;     Show all 7 Subjects
Abstract:
... The objective of this research was to investigate the ex situ simultaneous nitrification–denitrification (SND) and in situ denitrification process and to evaluate its application for treating landfill leachates at long-term operations. Based on the predicted contaminant concentrations, two sets of laboratory-scale bioreactor landfill systems (an ex situ nitrification and in situ denitrification bi ...
DOI:
10.1016/j.wasman.2019.03.057

8. Nitrifying bio-cord reactor: performance optimization and effects of substratum and air scouring

Author:
Tian, Xin; Ahmed, Warsama; Delatolla, Robert
Source:
Environmental technology 2019 v.40 no.4 pp. 480-488
ISSN:
1479-487X
Subject:
nitrification,   etc   ; air; ammonia; ammonium nitrogen; environmental technology; pollution load;     Show all 6 Subjects
Abstract:
... Ammonia removal kinetics and solids’ production performance of the bio-cord technology are studied in this research. Three nitrifying reactors housing different bio-cord substratum were operated at five different ammonia loading rates. All of the bio-cord substrata demonstrated stable and high ammonia-nitrogen removal efficiencies of 96.8 ± 0.9%, 97.0 ± 0.6% and 92.0 ± 0.4% at loading rates of 0.8 ...
DOI:
10.1080/09593330.2017.1397760

9. Achieving nitritation by treating sludge with free nitrous acid: The effect of starvation

Author:
Nan, Xi; Ma, Bin; Qian, Wenting; Zhu, Hongbo; Li, Xiyao; Zhang, Qiong; Peng, Yongzhen
Source:
Bioresource technology 2019 v.271 pp. 159-165
ISSN:
0960-8524
Subject:
nitrification,   etc   ; nitrites; nitrous acid; sludge; starvation; wastewater treatment;     Show all 6 Subjects
Abstract:
... Side-stream sludge treatment using free nitrous acid (FNA) is a novel strategy to achieve nitritation in mainstream of wastewater treatment plants (WWTPs). To optimize nitritation, the effect of starvation on this strategy was investigated in this study. The results showed that pre-starvation, which is the starvation before FNA treatment, enhanced the resistance of sludge to FNA. This led to a dec ...
DOI:
10.1016/j.biortech.2018.09.113

10. Nitrogen deposition affects both net and gross soil nitrogen transformations in forest ecosystems: A review

Author:
Cheng, Yi; Wang, Jing; Chang, Scott X.; Cai, Zucong; Müller, Christoph; Zhang, Jinbo
Source:
Environmental pollution 2019 v.244 pp. 608-616
ISSN:
0269-7491
Subject:
nitrification,   etc   ; ammonium; forest ecosystems; forests; mineralization; nitrate reduction; nitrogen; soil;     Show all 8 Subjects
Abstract:
... Nitrogen (N) deposition has rapidly increased and is influencing forest ecosystem processes and functions on a global scale. Understanding process-specific N transformations, i.e., gross N transformations, in forest soils in response to N deposition is of great significance to gain mechanistic insights on the linkages between global N deposition and N availability or loss in forest soils. In this ...
DOI:
10.1016/j.envpol.2018.10.054

11. The nitrogen removal of autotrophic and heterotrophic bacteria in aerobic granular reactors with different feast/famine ratio

Author:
Li, Dong; Zhang, Shirui; Li, Shuai; Zeng, Huiping; Zhang, Jie
Source:
Bioresource technology 2019 v.272 pp. 370-378
ISSN:
0960-8524
Subject:
nitrification,   etc   ; activated sludge; ammonia; bacteria; famine; models; nitrogen; oxygen;     Show all 8 Subjects
Abstract:
... Aerobic granular sludge was cultivated in three column reactors, which had been operated for 120 days under different feast/famine ratio (1:7, 1:11, 1:15). The composition of total bacteria was analyzed by testing oxygen uptake rates of mixed liquor samples taken from the reactors and calculating according to activated sludge model. The results revealed that long famine phase favored the growth of ...
DOI:
10.1016/j.biortech.2018.10.046

12. A framework for analysing nitrification inhibition: A case study on 3,4-dimethylpyrazole phosphate (DMPP)

Author:
Vilas, M.P.; Verburg, K.; Thorburn, P.J.; Probert, M.E.; Bonnett, G.D.
Source:
The Science of the total environment 2019 v.672 pp. 846-854
ISSN:
0048-9697
Subject:
nitrification; nitrification inhibitors,   etc   ; bioactive properties; carbon; case studies; half life; labeling techniques; longevity; nitrogen; nutrient use efficiency; phosphates; soil; terminology;     Show all 13 Subjects
Abstract:
... Nitrification inhibitors show great potential to reduce nitrogen losses from agricultural systems and to improve nitrogen use efficiency. The most recently developed nitrification inhibitor 3,4-dimethylpyrazole phosphate (DMPP) is gaining popularity due to its benefits relative to other compounds. However, the behaviour of DMPP and its effect on nitrification in soils has been characterised using ...
DOI:
10.1016/j.scitotenv.2019.03.462

13. Biochemical effects of banding limit the benefits of nitrification inhibition and controlled-release technology in the fertosphere of high N-input systems

Author:
Janke, Chelsea K.; Fujinuma, Ryosuke; Moody, Phil; Bell, Michael J.
Source:
Soil research 2019 v.57 no.1 pp. 28-40
ISSN:
1838-675X
Subject:
nitrification; nitrification inhibitors,   etc   ; ammonia; ammonium; buffering capacity; clay fraction; granules; hydrolysis; nitrogen; pH; polymer-coated urea; polymers; sugarcane; urea;     Show all 14 Subjects
Abstract:
... Enhanced efficiency fertilisers (EEFs) may have an important role in improving nitrogen (N) use efficiency in agricultural systems. The performance of EEFs when applied by broadcasting and incorporation is well documented; however, little information is available for sub-surface banded N-fertiliser. This study aimed to determine the effectiveness of EEFs within the fertosphere in several soils. Th ...
DOI:
10.1071/SR18211

14. Individual and combined effects of nickel and copper on nitrification organisms

Author:
Aslan, Sukru; Sozudogru, Onur
Source:
Ecological engineering 2017 v.99 pp. 126-133
ISSN:
0925-8574
Subject:
nitrification,   etc   ; biofilters; copper; nickel;     Show all 4 Subjects
Abstract:
... Individual and combined effects of Ni2+ and Cu2+ concentrations on the nitrification process were investigated in a submerged biofilter. The activity of nitrification organisms was inhibited by high concentrations of Cu2+. However, low concentrations of Cu2+ promoted NOB activity. There were no observable stimulation effects of Ni2+. The presence of 0.2–4.0mg/L Ni2+ caused a decrease in the rate o ...
DOI:
10.1016/j.ecoleng.2016.11.019

15. 2-Chlorophenol consumption by cometabolism in nitrifying SBR reactors

Author:
Martínez-Jardines, Miguel; Martínez-Hernández, Sergio; Texier, Anne-Claire; Cuervo-López, Flor
Source:
Chemosphere 2018 v.212 pp. 41-49
ISSN:
0045-6535
Subject:
nitrification,   etc   ; 2-chlorophenol; ammonium; nitrates; sludge;     Show all 5 Subjects
Abstract:
... Cometabolic consumption of 2-chlorophenol (2-CP) by a nitrifying sludge was evaluated in two SBR reactors fed with 60 mg 2-CP-C/L and different initial ammonium concentrations (100, 200, 300, 400, and 500 mg NH4+-N/L). Irrespectively to the increase in ammonium concentration and throughout the operational cycles, the sludge achieved a complete nitrification in 14 days, accounting for ammonium cons ...
DOI:
10.1016/j.chemosphere.2018.08.064

16. Effects of the nitrification inhibitor DMPP (3,4-dimethylpyrazole phosphate) on gross N transformation rates and N2O emissions

Author:
Zhu, Gaodi; Ju, Xiaotang; Zhang, Jinbo; Müller, Christoph; Rees, Robert M; Thorman, Rachel E.; Sylvester-Bradley, Roger
Source:
Biology and fertility of soils 2019 v.55 no.6 pp. 603-615
ISSN:
0178-2762
Subject:
nitrification; nitrification inhibitors,   etc   ; 3,4-dimethylpyrazole phosphate; adsorption; agricultural soils; ammonium; clay; clay fraction; greenhouse gas emissions; mineralization; nitrogen; nitrous oxide; soil organic carbon; stable isotopes; United Kingdom;     Show all 15 Subjects
Abstract:
... Many studies have shown the efficiency of the nitrification inhibitor 3,4-dimethylpyrazole phosphate (DMPP) in suppressing nitrification and nitrous oxide (N₂O) emissions. However, the effect of DMPP on soil gross nitrogen transformations and the mechanism of its inhibitory effects on N₂O production pathways remain unknown. A ¹⁵N tracing experiment was conducted to investigate the effect of DMPP o ...
DOI:
10.1007/s00374-019-01375-6

17. Nitrate leaching losses are lower from ryegrass/white clover forages containing plantain than from ryegrass/white clover forages under different irrigation

Author:
Carlton, Anna J.; Cameron, Keith C.; Di, Hong J.; Edwards, Grant R.; Clough, Tim J.
Source:
New Zealand journal of agricultural research 2019 v.62 no.2 pp. 150-172
ISSN:
1175-8775
Subject:
nitrification; nitrification inhibitors,   etc   ; Archaea; Lolium perenne; Plantago lanceolata; Trifolium repens; ammonia; bacteria; dairy cows; drainage; grasslands; irrigation management; leaching; lysimeters; nitrates; summer; urine;     Show all 17 Subjects
Abstract:
... The aim of this research was to assess the potential of using perennial ryegrass (Lolium perenne) and white clover (Trifolium repens) forages containing plantain (Plantago lanceolata L.) (PRGWC + Plantain) to mitigate nitrate (NO₃⁻) leaching in grazed grassland. Lysimeter studies were carried out to determine NO₃⁻ leaching losses from the PRGWC + Plantain forage, compared with the standard perenni ...
DOI:
10.1080/00288233.2018.1461659

18. Dicyandiamide application improved nitrogen use efficiency and decreased nitrogen losses in wheat-maize crop rotation in Loess Plateau

Author:
Raza, Sajjad; Chen, Zhujun; Ahmed, Muneer; Afzal, Muhammad Rahil; Aziz, Tariq; Zhou, Jianbin
Source:
Archiv für Acker- und Pflanzenbau und Bodenkunde 2019 v.65 no.4 pp. 450-464
ISSN:
1476-3567
Subject:
nitrification; nitrification inhibitors,   etc   ; ammonium nitrogen; corn; crop rotation; crops; dicyandiamide; nitrate nitrogen; nitrogen; nitrogen fertilizers; nutrient use efficiency; pH; soil profiles; wheat; China;     Show all 15 Subjects
Abstract:
... Inhibition of nitrification as a mitigation tool to abate nitrogen (N) losses and improve N use efficiency (NUE) is a promising technology. Nitrification inhibitor (dicyandiamide, DCD) was evaluated in two consecutive wheat-maize rotations (2015–2017), with two different N fertilizer levels applied in wheat (160, 220 kg N ha⁻¹) and maize (180, 280 kg N ha⁻¹). More NH₄⁺-N contents (101% and 102% in ...
DOI:
10.1080/03650340.2018.1506584

19. Factors influencing the release of the biological nitrification inhibitor 1,9-decanediol from rice (Oryza sativa L.) roots

Author:
Zhang, Xiaonan; Lu, Yufang; Yang, Ting; Kronzucker, Herbert J.; Shi, Weiming
Source:
Plant and soil 2019 v.436 no.1-2 pp. 253-265
ISSN:
0032-079X
Subject:
nitrification; nitrification inhibitors,   etc   ; Nitrosomonas europaea; Oryza sativa; aeration; ammonium; bioassays; denitrifying microorganisms; hydroponics; nitrifying bacteria; nitrogen; pH; rhizosphere; rice; root exudates; root systems; roots; secretion;     Show all 18 Subjects
Abstract:
... AIMS: Root exudates of rice (Oryza sativa L.) can inhibit nitrification in Nitrosomonas bioassays, and 1,9-decanediol was recently identified as an important new biological nitrification inhibitor (BNI) from rice. However, the release characteristics of 1,9-decanediol have not been studied. The present study was designed to identify the major factors influencing the release of 1,9-decanediol from ...
DOI:
10.1007/s11104-019-03933-1

20. Effect of the Nitrification Inhibitor 3,4-Dimethylpyrazole Phosphate on the Deep Placement of Nitrogen Fertilizers for Soybean Cultivation

Author:
Hatano, Soshi; Fujita, Yoichi; Nagumo, Yoshifumi; Ohtake, Norikuni; Sueyoshi, Kuni; Takahashi, Yoshihiko; Sato, Takashi; Tanabata, Sayuri; Higuchi, Kyoko; Saito, Akihiro; Ohyama, Takuji
Source:
International journal of agronomy 2019 v.2019
ISSN:
1687-8167
Subject:
nitrification; nitrification inhibitors,   etc   ; dry matter accumulation; nitrogen; nitrogen fixation; nutrient uptake; phosphates; prices; seed yield; shoots; soil; soybeans; urea; urea fertilizers;     Show all 14 Subjects
Abstract:
... The deep placement of urea fertilizer (DMU) containing 1% (W/W) of the nitrification inhibitor 3,4-dimethylpyrazole phosphate (DMPP) on soybean growth and seed yield was as effective as those of the coated urea (CU) and lime nitrogen (LN) in a field research. The average seed yields were high in LN (464 g·m⁻²) and DMU (461 g·m⁻²) and relatively low in CU (405 g·m⁻²), U (396 g·m⁻²), and Cont (373 g ...
DOI:
10.1155/2019/9724214