Synchronous removal of ammonia nitrogen, phosphate, and calcium by heterotrophic nitrifying strain Pseudomonas sp. Y1 based on microbial induced calcium precipitation

Yang, Wenshuo; Xu, Liang; Wang, Zhao; Li, Kai; Hu, Ruizhu; Su, Junfeng; Zhang, Lingfei

doi:10.1016/j.biortech.2022.127996

Cited by 29 publications

(5 citation statements)

References 46 publications

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“…After 6 days of reaction, the removal rates of NH 4 + ‐N were 34.00%, 53.37%, 36.60%, 71.47%, 39.03%, and 35.27%, respectively, higher than the 24.33% of the blank. The removal rate showed a slight upward trend from Day 5, presumably due to the release of NH 4 + ‐N as the microbial agent entered the decay phase (Yang et al, 2022). It is obvious that NR 2 has the best removal effect, followed by NR 4 .…”

Section: Resultsmentioning

confidence: 99%

“…Alternatively, once they are produced, it is involved in the denitrification reactions and is thus consumed. This may indicate a higher reduction rate of NO 3 − ‐N and NO 2 − ‐N, both of which are greater than the oxidation rate of NH 4 + ‐N in microbial cells (Yang et al, 2022; Yao et al, 2020).…”

Section: Resultsmentioning

confidence: 99%

“…Low pH will also affect the role of bacteria such as ammonia‐oxidizing bacteria and nitrifying bacteria, thus reducing nitrification efficiency (Wongkiew et al, 2018). In the later stage, with the increase of denitrifying bacteria, the denitrification was strengthened, the compensation effect on basicity was strengthened, and the pH value also increased (Hu et al, 2020; Yang et al, 2022). At this stage, complex microbial inoculants may produce substances with positive contributions to basicity during their metabolism, increasing in water pH.…”

Section: Resultsmentioning

confidence: 99%

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Six complex microbial inoculants for removing ammonia nitrogen from waters

Sun

Zhang

et al. 2022

Water Environment Research

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To determine the effect of microbial inoculants on the removal of ammonia nitrogen (NH4+‐N), six different complex microbial inoculants were studied. In this study, their effectiveness on NH4+‐N removal was compared, and their microbial community composition was determined. High‐throughput sequencing results showed that Proteobacteria and Firmicutes were the dominant phyla in six samples. Before the reaction, Bacillus, Cyanobacteria, and Mitochondria genera were the dominant genera. The dominant genera were significantly different after the reaction with the addition of bacterial agents. The six water samples were Massilia, Escherichia‐Shigella, Brevibacillus, Mitsuaria, Bacillus, and Ralstonia. Among the six complex microbial inoculants, “Gandu nitrifying bacteria (NR4)” have the best removal effect on NH4+‐N. In addition, the removal effect of six different bacterial agents on chemical oxygen demand (COD) was compared. The results showed that “Bilaiqing ammonia nitrogen removal bacteria agent (NR5)” has the best removal effect on COD. Single‐factor experiments suggested that the optimal conditions for NR4 bacteria were pH 7, 30°C, 1.0 g/L of bacterial agent dosage and a wide range of NH4+‐N from 30 to 300 mg/L. Practitioner Points The nitrogen removal effects of six different microbial agents were compared. High‐throughput sequencing provides important insights into the study of ammonia nitrogen removal by microbial communities. Analysis of six different complex bacterial agents by high‐throughput sequencing. The relative abundance of microorganisms is not proportional to the ability to remove NH4+‐N Good application effect in urban landscape water body.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

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Six complex microbial inoculants for removing ammonia nitrogen from waters

Sun

Zhang

et al. 2022

Water Environment Research

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“…The relatively lower phosphorus removal at 100 ppm PO 4 3− -P can be attributed to the substrate inhibition. The phosphorus removal efficiency is found to be better in continuous mode than in the batch mode [22,23].…”

Section: Biological Phosphorus Removalmentioning

confidence: 93%

Development of a high rate biological system (Anammox + phosporous) for the treatment of low strength wastewaters

Ramesh

Goel²,

Sudarsan³

et al. 2023

Environmental Chemistry and Ecotoxicology

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“…Yang [20] investigated the role of heterotrophic nitrifying bacteria in the MICP process, providing a theoretical basis for the application of microorganisms to achieve simultaneous nutrient removal and phosphorus recovery from wastewater. Recent studies [21] have shown the degradation of phenol by anaerobic MICP, with strain CZ3 showing significant removal of nitrate, fluoride, calcium, and phenol.…”

Section: Introductionmentioning

confidence: 99%

The Effect of Bacteria-to-Calcium Ratio on Microbial-Induced Carbonate Precipitation (MICP) under Different Sequences of Calcium-Source Introduction

Zhao,

Du,

Shang

2024

Materials

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To explore the effects of the introduction order of calcium sources and the bacteria-to-calcium ratio on the microbially induced calcium carbonate precipitation (MICP) product CaCO3 and to achieve the regulation of CaCO3 crystal morphology, the mineralisation products of MICP were compared after combining bacteria and calcium at ratios of 1/9, 2/9, 3/9, 4/9, 5/9, and 6/9. A bacterial solution was combined with a urea solution in two calcium addition modes: calcium-first and calcium-later modes. Finally, under the calcium-first addition method, the output of high-purity vaterite-type CaCO3 was achieved at bacteria-to-calcium ratios of 2/9 and 3/9; under the calcium-later addition method, the output of calcite-type CaCO3 could be stabilised, and the change in the bacteria-to-calcium ratio did not have much effect on its crystalline shape.

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Synchronous removal of ammonia nitrogen, phosphate, and calcium by heterotrophic nitrifying strain Pseudomonas sp. Y1 based on microbial induced calcium precipitation

Cited by 29 publications

References 46 publications

Six complex microbial inoculants for removing ammonia nitrogen from waters

Six complex microbial inoculants for removing ammonia nitrogen from waters

Development of a high rate biological system (Anammox + phosporous) for the treatment of low strength wastewaters

The Effect of Bacteria-to-Calcium Ratio on Microbial-Induced Carbonate Precipitation (MICP) under Different Sequences of Calcium-Source Introduction

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