A novel SNPR process for advanced nitrogen and phosphorus removal from mainstream wastewater based on anammox, endogenous partial-denitrification and denitrifying dephosphatation

Ji, Jiantao; Peng, Yongzhen; Wang, Bo; Li, Xiyao; Zhang, Qiong

doi:10.1016/j.watres.2019.115363

Cited by 104 publications

(15 citation statements)

References 43 publications

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“…A novel SNPR process was established which based on anammox, endogenous partial-denitrification and denitrifying dephosphatation to treat mainstream wastewater and excellent removal performance was achieved. Anammox pathway was proved to contribute 82.9% of the overall nitrogen removal because of the stable NO 2 --N production from NO 3 --N via EPD [30]. This indicated that the novel SNPR process has promising prospect to obtain advanced nitrogen and phosphorus removal in the mainstream of wastewater treatment plants.…”

Section: Carbon Sourcesmentioning

confidence: 99%

New Insight into Partial Denitrification (PD)-based Anammox Process and Potential Engineering Application: A Review

Bahtiar¹,

Zhang²,

Wang³

et al. 2020

JHER

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Section: Carbon Sourcesmentioning

confidence: 99%

New Insight into Partial Denitrification (PD)-based Anammox Process and Potential Engineering Application: A Review

Bahtiar¹,

Zhang²,

Wang³

et al. 2020

JHER

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“…TP in the inlet was at 75.2 mg/L; this then decreased to 53.9 mg/L after anaerobic zone treatment, indicating that the phosphorus utilization rate was high at this stage. Ji et al developed a novel simultaneous nitrogen and phosphorus removal (SNPR) process for the treatment of mainstream wastewater; after 200 days of operation, the removal rates of TN and TP were 93.9% and 94.2%, respectively [24]. Huang et al created a single-stage biofilm process coupled with anammox and intracellular carbon metabolism (SAIC) for the treatment of swine wastewater after simulated digestion; the removal rate of TN in their SAIC system was 12.77% higher than it was in the reference system, and the removal rate of TP was as high as 83.7% [25].…”

Section: Detection Of Wastewater Qualitymentioning

confidence: 99%

Bacterial Community Structure and Dynamic Changes in Different Functional Areas of a Piggery Wastewater Treatment System

Shi

Liu

et al. 2021

Microorganisms

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Chemicals of emerging concern (CEC) in pig farm breeding wastewater, such as antibiotics, will soon pose a serious threat to public health. It is therefore essential to consider improving the treatment efficiency of piggery wastewater in terms of microorganisms. In order to optimize the overall piggery wastewater treatment system from the perspective of the bacterial community structure and its response to environmental factors, five samples were randomly taken from each area of a piggery’s wastewater treatment system using a random sampling method. The bacterial communities’ composition and their correlation with wastewater quality were then analyzed using Illumina MiSeq high-throughput sequencing. The results showed that the bacterial community composition of each treatment unit was similar. However, differences in abundance were significant, and the bacterial community structure gradually changed with the process. Proteobacteria showed more adaptability to an anaerobic environment than Firmicutes, and the abundance of Tissierella in anaerobic zones was low. The abundance of Clostridial (39.02%) and Bacteroides (20.6%) in the inlet was significantly higher than it was in the aerobic zone and the anoxic zone (p < 0.05). Rhodocyclaceae is a key functional microbial group in a wastewater treatment system, and it is a dominant microbial group in activated sludge. Redundancy analysis (RDA) showed that chemical oxygen demand (COD) had the greatest impact on bacterial community structure. Total phosphorus (TP), total nitrogen (TN), PH and COD contents were significantly negatively correlated with Sphingobacteriia, Betaproteobacteria and Gammaproteobacteria, and significantly positively correlated with Bacteroidia and Clostridia. These results offer basic data and theoretical support for optimizing livestock wastewater treatment systems using bacterial community structures.

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“…Secondly, DPR achieved the simultaneous N and P removals using the same carbon source without external carbon addition, especially for low C/N ratio wastewater treatment (Zhang et al, 2019a). Finally, the superior DPR performance accelerated the formation of granular sludge contributing to higher shock resistance (Zhang et al, 2020), and the better settleability with higher P content provided feasibilities for P recovery and reuse (Yuan et al, 2012).…”

Section: Optimizing Operation For High-efficient Wastewater Treatmentmentioning

confidence: 99%

“…Due to the high operational costs of traditional biological nutrient removal (BNR) process, wastewater treatment plants (WWTPs) are undergoing a shift from nutrient removal to energy-neutral (Ji et al, 2020). Denitrifying phosphorus removal (DPR) had drawn much attention for simultaneous nitrogen (N) and phosphorus (P) removals with one carbon source as electron donor, saving 30% energy requirement and reducing 50% sludge production (Kuba et al, 1996).…”

Section: Introductionmentioning

confidence: 99%

Roles of nitrate recycling ratio in the A2/O - MBBR denitrifying phosphorus removal system for high-efficient wastewater treatment: Performance comparison, nutrient mechanism and potential evaluation

Zhang

Song

Zhu

et al. 2020

Journal of Environmental Management

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The long-term effect of nitrate recycling ratios (R=100% -500%) on the denitrifying phosphorus removal (DPR) characteristics was studied in a novel two-sludge system, which coupled Anaerobic Anoxic Oxic (A 2 /O) with Moving Bed Biofilm Reactor (MBBR) for simultaneous nitrogen (N) and phosphorus (P) removals. During the 220 days' operation, effluent COD (30.87 -45.15 mg/L) can meet the discharge standard completely, but N and P removals were significantly affected by the R-value, including CODintra removal efficiency (CODintra-Re: 56.09 -85.98%), TN removal (TN-Re: 52.06 -80.50%), anaerobic PO4 3release (PO4 3--An: 10.66 -29.02 mg/L) and oxic PO4 3absorption (PO4 3--O:2.22 -6.26 mg/L). Meanwhile, N and P displayed close correlation with the ΔPO4 3-/ΔNO3ratio of 4.20 -4.41 at R=300% -400%, resulting in the high-efficient anoxic poly-β-hydroxyalkanoates (PHA) utilization (ΔPHAA: 64.88 mgCOD/gVSS). Based on the stoichiometry methodology, at R of 300% -400%, the percentages of phosphorus

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A novel SNPR process for advanced nitrogen and phosphorus removal from mainstream wastewater based on anammox, endogenous partial-denitrification and denitrifying dephosphatation

Cited by 104 publications

References 43 publications

New Insight into Partial Denitrification (PD)-based Anammox Process and Potential Engineering Application: A Review

New Insight into Partial Denitrification (PD)-based Anammox Process and Potential Engineering Application: A Review

Bacterial Community Structure and Dynamic Changes in Different Functional Areas of a Piggery Wastewater Treatment System

Roles of nitrate recycling ratio in the A2/O - MBBR denitrifying phosphorus removal system for high-efficient wastewater treatment: Performance comparison, nutrient mechanism and potential evaluation

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