Sanitation and dewatering of human urine via membrane bioreactor and membrane distillation and its reuse for fertigation

Volpin, Federico; Jiang, Jiaxi; Saliby, Ibrahim El; Preire, Mathilde; Lim, Sung Kwan; Johir, Abu Hasan; Cho, Jaeweon; Han, Dong Suk; Phuntsho, Sherub; Shon, Ho Kyong

doi:10.1016/j.jclepro.2020.122390

Cited by 36 publications

(10 citation statements)

References 44 publications

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“…The results were compared to the reference cultivation carried out with a commercial nutrient solution that is commonly used in large-scale commercial production. This research complements our knowledge on the cultivation of hydroponic lettuce on urine-based fertilizers that was previously conducted by Volpin et al [24] and El-Nakhel et al [25]. The cultivation of lettuce based on a fully nitrified stream (~0% NH 4 and 100% NO 3 /(NO 3 + NO 2 ) in effluent) obtained in an activated sludge reactor has not been performed in the past.…”

Section: Introductionsupporting

confidence: 52%

“…Therefore, an overabundance of sodium can be avoided when only partially nitrified urine is used as a nutrient solution. The high ammonium concentration resulting from this approach could significantly influence plant growth as severely as excessive sodium [24,25]. Volpin et al [24] treated urine in a membrane reactor without alkalinity correction and then created a concentrated urine product in membrane distillation.…”

Section: Effects Of Excessive Sodium and Chloridementioning

confidence: 99%

“…The high ammonium concentration resulting from this approach could significantly influence plant growth as severely as excessive sodium [24,25]. Volpin et al [24] treated urine in a membrane reactor without alkalinity correction and then created a concentrated urine product in membrane distillation. That product was further diluted to suit lettuce.…”

Section: Effects Of Excessive Sodium and Chloridementioning

confidence: 99%

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Resource Recovery from Synthetic Nitrified Urine in the Hydroponic Cultivation of Lettuce (Lactuca sativa Var. capitata L.)

et al. 2021

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The application of hydroponic cultivation fertilized with biologically nitrified synthetic urine can produce nitrate-rich fertilizer for lettuce (Lactuca sativa var. capitata L.). The mounting water crisis and depletion of natural resources makes nitrogen recovery from human urine a practical option. Nitrified urine can be used in indoor vertical hydroponic cultivation and is characterized by a high degree of element recovery. Because of its high ammonium content, hydrolyzed fresh urine may be toxic. A nitrification sequencing batch reactor with suspended activated sludge biomass ensured urine stabilization and biological conversion into nitrate-rich fertilizer. The diluted nitrate-rich fertilizer was then supplied for soilless cultivation. The results show that diluted nitrified urine is an excellent source of bioavailable nitrogen and phosphorus and, with proper enrichment with microelements, could replace commercial fertilizers in hydroponic systems. The yield and quality parameters of lettuce cultivated with enriched urine were comparable to those obtained with a commercial fertilizer. The mass balance calculation showed that industry-scale lettuce production can be based on urine fertilizer collected from a few hundred people for a single unit.

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Section: Introductionsupporting

confidence: 52%

Section: Effects Of Excessive Sodium and Chloridementioning

confidence: 99%

Section: Effects Of Excessive Sodium and Chloridementioning

confidence: 99%

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Resource Recovery from Synthetic Nitrified Urine in the Hydroponic Cultivation of Lettuce (Lactuca sativa Var. capitata L.)

et al. 2021

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“…An MBR-DCMD process has been investigated, which produces an odorless and highconcentration liquid fertilizer. 66 At rst, the MBR removed 95% of the TOC and converted 50% of the NH 4 + -N to NO 3 À -N.…”

Section: Vapor Pressure-driven Membrane Technologymentioning

confidence: 99%

Membrane technologies in toilet urine treatment for toilet urine resource utilization: a review

Yin

et al. 2021

RSC Adv.

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“…Tun et al [121] applied DCMD in urine concentration, and pre-filtration (1.2 µm) of acidified urine was helpful in preventing membrane contamination. In addition, MBR and UF can also be used as the pretreatment of MD to postpone the occurrence of membrane fouling [122,123]. Membrane modification is considered a method to improve the efficiency of water recovery from the urine feed stream.…”

Section: Radioactive Wastewatermentioning

confidence: 99%

Membrane Distillation for Wastewater Treatment: A Mini Review

Yan

Jiang

Liu

et al. 2021

Water

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Water serves as an indispensable part of human life and production. On account of the overexploitation of traditional water sources, the demand for wastewater recycling is expanding rapidly. As a promising water treatment process, membrane distillation (MD) has been utilized in various wastewater treatments, such as desalination brine, textile wastewater, radioactive wastewater, and oily wastewater. This review summarized the investigation work applying MD in wastewater treatment, and the performance was comprehensively introduced. Moreover, the obstructions of industrialization, such as membrane fouling, membrane wetting, and high energy consumption, were discussed with the practical investigation. To cope with these problems, various strategies have been adopted to enhance MD performance, including coupling membrane processes and developing membranes with specific surface characteristics. In addition, the significance of nutrient recovery and waste heat utilization was indicated.

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Sanitation and dewatering of human urine via membrane bioreactor and membrane distillation and its reuse for fertigation

Cited by 36 publications

References 44 publications

Resource Recovery from Synthetic Nitrified Urine in the Hydroponic Cultivation of Lettuce (Lactuca sativa Var. capitata L.)

Resource Recovery from Synthetic Nitrified Urine in the Hydroponic Cultivation of Lettuce (Lactuca sativa Var. capitata L.)

Membrane technologies in toilet urine treatment for toilet urine resource utilization: a review

Membrane Distillation for Wastewater Treatment: A Mini Review

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