On-site nutrient recovery and removal from source-separated urine by phosphorus precipitation and short-cut nitrification-denitrification

Yao, Song; Chen, Liping; Guan, Detian; Zhang, Zhongguo; Tian, Xiujun; Wang, Aimin; Wang, Guotian; Yao, Qian; Peng, Dangcong; Li, Jiuyi

doi:10.1016/j.chemosphere.2017.02.062

Cited by 34 publications

(10 citation statements)

References 33 publications

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“…Integrative waste water treatment alternatives, considering P-recovery by chemical precipitation before biological N oxidation or removal, have conceptually been analysed under different scenarios [103,104] and also experimentally studied [66][67][68][69][105][106][107][108][109][110][111][112][113][114][115][116][117][118][119][120][121][122], as summarised in Table 2 (an extended version of this table is provided as Supplementary Material). Chemically induced phosphate precipitation before BNR from waste water-and also in the case of not considering BNR-typically requires to increase the pH (preferably above 8.0-8.5) by dosing an alkaline reagent (e.g., sodium hydroxide, NaOH) or by applying CO 2 stripping [93,123], and to adjust the amount of alkaline-earth metal ions (i.e., Mg 2+ or Ca 2+ ) available to effective concentrations according to the accessible phosphate-typically slightly above the theoretically needed ratios.…”

Section: Phosphorus Recovery Before Biological N Treatment (Upstream Configuration)mentioning

confidence: 99%

“…The chemicals commonly used as precipitant agents are oxides (MgO, CaO), hydroxides (Mg(OH) 2 , Ca(OH) 2 ), and soluble salts (e.g., MgCl 2 , CaCl 2 ) [68,107,122]. Alternatively, low grade renewable sources, including secondary raw materials and by-products [108], or seawater [110], can also be used. Feasibility of their use depends on factors, such as metal compound availability, solubility, and reactivity [39].…”

Section: Phosphorus Recovery Before Biological N Treatment (Upstream Configuration)mentioning

confidence: 99%

See 1 more Smart Citation

Recovery of Phosphorus from Waste Water Profiting from Biological Nitrogen Treatment: Upstream, Concomitant or Downstream Precipitation Alternatives

et al. 2020

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Mined phosphate rock is the largest source of phosphorus (P) for use in agriculture and agro-industry, but it also is a finite resource irregularly distributed around the world. Alternatively, waste water is a renewable source of P, available at the local scale. In waste water treatment, biological nitrogen (N) removal is applied according to a wide range of variants targeting the abatement of the ammonium content. Ammonium oxidation to nitrate can also be considered to mitigate ammonia emission, while enabling N recovery. This review focuses on the analysis of alternatives for coupling biological N treatment and phosphate precipitation when treating waste water in view of producing P-rich materials easily usable as fertilisers. Phosphate precipitation can be applied before (upstream configuration), together with (concomitant configuration), and after (downstream configuration) N treatment; i.e., chemically induced as a conditioning pre-treatment, biologically induced inside the reactor, and chemically induced as a refining post-treatment. Characteristics of the recovered products differ significantly depending on the case studied. Currently, precipitated phosphate salts are not typified in the European fertiliser regulation, and this fact limits marketability. Nonetheless, this topic is in progress. The potential requirements to be complied by these materials to be covered by the regulation are overviewed. The insights given will help in identifying enhanced integrated approaches for waste water treatment, pointing out significant needs for subsequent agronomic valorisation of the recovered phosphate salts, according to the paradigms of the circular economy, sustainability, and environmental protection.

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Section: Phosphorus Recovery Before Biological N Treatment (Upstream Configuration)mentioning

confidence: 99%

Section: Phosphorus Recovery Before Biological N Treatment (Upstream Configuration)mentioning

confidence: 99%

Recovery of Phosphorus from Waste Water Profiting from Biological Nitrogen Treatment: Upstream, Concomitant or Downstream Precipitation Alternatives

et al. 2020

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“…For example, major conclusions from previous research include >95% TP recovery using MgCl 2 and >90% TAN recovery by increasing the pH and temperature of the solution. The gap in knowledge lies in the few studies that combine N and P treatment in series to produce separate N and P products, 30,31,[51][52][53][54] and minimal research on treatment processes to recover N, P, and K at significant concentrations. 30,55,56 For example, major conclusions on treatment processes to recover N, P, and K include a lack of significant N and K recovery via precipitation without the equimolar addition of P and Mg 2+ to N or K + in solution.…”

Section: Synthetic Urine With Metabolites Amentioning

confidence: 99%

Integrated, multi-process approach to total nutrient recovery from stored urine

Jagtap

Boyer

2018

Environ. Sci.: Water Res. Technol.

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“…Shortcut biological nitrogen removal is achieved through controlling environmental conditions and preventing further oxidation of nitrite nitrogen. This process can save 40% of carbon and 25% of oxygen compared with the whole biological nitrogen removal process [4][5][6]. However, for polluted rivers, shortcut biological nitrogen removal has not been much studied in recent years.…”

Section: Introductionmentioning

confidence: 99%

Using Near Infrared Spectroscopy to Quickly Analyze Different Nitrogens during the Shortcut Biological Removal of Nitrogen from a Polluted River

Jian¹,

Li²,

Zhang³

et al. 2019

Pol. J. Environ. Stud.

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During shortcut biological nitrogen removal in a polluted river, total nitrogen, ammonia nitrogen and nitrite nitrogen were quantified by near infrared spectroscopy and the synergy interval partial least squares (siPLS) algorithm. Spectral data of 138 water samples were obtained with a near infrared spectrometer. In addition, the real values of total nitrogen, ammonia nitrogen and nitrite nitrogen were measured with traditional chemical methods. SiPLS analysis models of total nitrogen, ammonia nitrogen and nitrite nitrogen were built through the siPLS algorithm based on spectral data and real values. The results obtained from the siPLS analysis model of total nitrogen revealed that, when the full spectra were divided into 19 intervals, the combination of the 7 th , 12 th and 19 th subintervals yielded the best model. The correction coefficient (R p ) is 0.9931, with the root mean squared error of calibration (RMSECV) being 1.7869. The results obtained from the siPLS analysis model of ammonia nitrogen indicated that, when the full spectra were divided into 16 intervals, the combination of the 1 st , 7 th , 15 th and 16 th subintervals yielded the best model. The R p is 0.9947 and the RMSECV is 1.3419. For nitrite nitrogen, the siPLS analysis model indicated that, when the full spectra were divided into 16 intervals, the combination of the 7th and the 11th subintervals yielded the best model. The R p and RMSECV was 0.9951 and 1.0518. These findings demonstrated that the proposed approach may effectively analyze the concentrations of total nitrogen, ammonia nitrogen and nitrite nitrogen during the treatment of a polluted river based on shortcut biological nitrogen removal. This approach, *

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On-site nutrient recovery and removal from source-separated urine by phosphorus precipitation and short-cut nitrification-denitrification

Cited by 34 publications

References 33 publications

Recovery of Phosphorus from Waste Water Profiting from Biological Nitrogen Treatment: Upstream, Concomitant or Downstream Precipitation Alternatives

Recovery of Phosphorus from Waste Water Profiting from Biological Nitrogen Treatment: Upstream, Concomitant or Downstream Precipitation Alternatives

Integrated, multi-process approach to total nutrient recovery from stored urine

Using Near Infrared Spectroscopy to Quickly Analyze Different Nitrogens during the Shortcut Biological Removal of Nitrogen from a Polluted River

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