Nutrient recovery and biomass production by cultivating Chlorella vulgaris 1067 from four types of post-hydrothermal liquefaction wastewater

Zhang, Li; Lu, Haifeng; Zhang, Yuanhui; Li, Baoming; Liu, Zhidan; Duan, Na; Liu, Minsheng

doi:10.1007/s10811-015-0640-3

Cited by 43 publications

(29 citation statements)

References 22 publications

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“…Total carbon (TC), total organic carbon (TOC), total phosphorous (TP) and pHvalues were determinedas previously described [16]. Chemical…”

Section: 3analytical Methodsmentioning

confidence: 99%

“…The equilibrium shifted towards ammonia when the pH increased [33]. Apart from organic matter, most nitrogen and phosphorous in the original feedstockwere channeled into aqueous phase during HTL [16,22]. In particular,volatile fatty acids(acetic acid, lactic acid, etc.…”

Section: Analysis Of Organic Elements In the Productsmentioning

confidence: 99%

“…In particular,volatile fatty acids(acetic acid, lactic acid, etc. ), and allyl alcohol were identified in the aqueous phase.Monosaccharidecould also be produced in the aqueous phase through dehydration of cellulose and hemicellulose in the human feces, and the acids and alcoholswere probably generated as a result of furtherdegradation of the monosaccharides [16,21,34] (Fig. 4).…”

Section: Analysis Of Organic Elements In the Productsmentioning

confidence: 99%

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Simultaneous production of biocrude oil and recovery of nutrients and metals from human feces via hydrothermal liquefaction

Zhang

Zhu

et al. 2017

Energy Conversion and Management

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117

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Hydrothermal liquefaction (HTL) is a thermochemical process specifically suitable for treating wet wastes. This study investigated its potential for the production of biocrude oil and the recovery of nutrients and metals from human feces via HTL. Specifically, the effects of temperature (260 o C, 300 o C, 340 o C), retention time (10min, 30min, 50 min) and total solid (TS) content (5%, 15%, 25%) were studied. The maximum liquefied fraction was 87.89% and the highest biocrude yield reached 34.44%with a higher heating valueof 40.29 MJ/kg. Experimental results showed that 54% of carbon in the human feces was migrated to the biocrude oil while72% of nitrogen wasreleased to the aqueous phase. In addition, most of heavy and alkaline-earth metal elements in the human feces, including Ca (89%), Mg (81%), Al (88%), Fe (72%) and Zn (94%) were distributedin the solid residue, whereas K (89%) and Na (73%) were mainly dissolved into the aqueous phase.This study demonstrated thatthe efficient degradation of human waste via HTL without any pretreatment and its potential for the valorization in biocrude oil as well as separated nutrients and metals.

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“…Total carbon (TC), total organic carbon (TOC), total phosphorous (TP) and pHvalues were determinedas previously described [16]. Chemical…”

Section: 3analytical Methodsmentioning

confidence: 99%

Section: Analysis Of Organic Elements In the Productsmentioning

confidence: 99%

Section: Analysis Of Organic Elements In the Productsmentioning

confidence: 99%

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Simultaneous production of biocrude oil and recovery of nutrients and metals from human feces via hydrothermal liquefaction

Zhang

Zhu

et al. 2017

Energy Conversion and Management

Self Cite

117

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“…However, the initial total nitrogen (TN) and total phosphorus (TP) of anaerobic-digested effluent were approximately 802-3213 (mg/L) and 50-987 (mg/L), respectively [6], which exceeds the nutrient demand for microalgae growth. Especially for ammonium nitrogen; the tolerance concentration of ammonium for different algae species varies from 450 (mg/L) to 18000 (mg/L) [7]. Excess ammonium has a repressive effect on microalgae [7].…”

Section: Introduction Pmentioning

confidence: 99%

“…Especially for ammonium nitrogen; the tolerance concentration of ammonium for different algae species varies from 450 (mg/L) to 18000 (mg/L) [7]. Excess ammonium has a repressive effect on microalgae [7]. Thus, the nutrients concentration must be controlled at a proper level for microalgae growth.…”

Section: Introduction Pmentioning

confidence: 99%

Nitrogen and Biomass Recovery from Low Carbon to Nitrogen Ratio Wastewater by Combing Air Stripping and Microalgae Cultivation

Ma¹,

Lu²,

Zhang³

et al. 2016

JRST

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an air stripping-microalgae cultivation system was proposed to recover nitrogen and produce biomass from biogas fertilizer production wastewater. air stripping was firstly used for reducing the nitrogen to low levels. Then microalgae were used for absorbing the residual nitrogen. Results showed that the nitrogen removal reached 95.0%, with a microalgae productivity and biomass yield of 0.21 (g/L/d) and 4.29 (g-biomass/g-nitrogen), respectively. For the system, 87.7% of the total nitrogen was recycled, from which 83.9% came from air stripping and 3.8% from microalgae absorption. This system enables carbon-emission reduction, wastewater treatment and the promotion of nitrogen recovery.

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Hydrothermal Liquefaction (HTL): A Promising Pathway for Biorefinery of Algae

2017

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Nutrient recovery and biomass production by cultivating Chlorella vulgaris 1067 from four types of post-hydrothermal liquefaction wastewater

Cited by 43 publications

References 22 publications

Simultaneous production of biocrude oil and recovery of nutrients and metals from human feces via hydrothermal liquefaction

Simultaneous production of biocrude oil and recovery of nutrients and metals from human feces via hydrothermal liquefaction

Nitrogen and Biomass Recovery from Low Carbon to Nitrogen Ratio Wastewater by Combing Air Stripping and Microalgae Cultivation

Hydrothermal Liquefaction (HTL): A Promising Pathway for Biorefinery of Algae

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