Nutrient removal and recovery from digestate: a review of the technology

Monfet, Evelyne; Aubry, Geneviève; Ramírez, Antonio Avalos

doi:10.1080/17597269.2017.1336348

Cited by 126 publications

(79 citation statements)

References 125 publications

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“…Abbasi et al (2004) used fish emulsion in a peat mix to grow radish and cucumber seedlings and showed that fish emulsion was not only a source of nutrients for plant growth, but also contained disease suppressive properties [35]. Other potential sources of N recovered from waste streams include ammonium sulfates produced from digestates or wastewater [36,37].…”

Section: Plos Onementioning

confidence: 99%

Quantifying nutrient recovery efficiency and loss from compost-based urban agriculture

2020

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The use of compost in urban agriculture offers an opportunity to increase nutrient recycling in urban ecosystems, but recent studies have shown that compost application often results in phosphorus (P) being applied far in excess of crop nutrient demand, creating the potential for P loss through leachate and runoff. Management goals such as maximizing crop yields or maximizing the mass of nutrients recycled from compost may inadvertently result in P loss, creating a potential ecosystem disservice. Here, we report the results from the first two years of an experimental study in which four different crops grown in raised-bed garden plots with high background P and organic matter received one of two types of compost (municipal compost made from urban organics waste, or manure-based compost) at two different levels (applied based on crop N or P demand), while additional treatments received synthetic N and P fertilizer or no soil amendments. Because of the low N:P ratio of compost relative to crop nutrient uptake, compost application based on crop N demand resulted in overapplication of P. Crop yield did not differ among treatments receiving compost inputs, and the mass of P recovered in crops relative to P inputs decreased for treatments with higher compost application rates. Treatments receiving compost targeted to crop N demand had P leachate rates approximately twice as high as other treatments. These results highlight tradeoffs inherent in recycling nutrients through UA, but they also show that targeted compost application rates have the capacity to maintain crop yields while minimizing nutrient loss. UA has the potential to help close the urban nutrient loop, but if UA is to be scaled up in order to maximize potential social, economic, and environmental benefits, it is especially important to carefully manage nutrients to avoid ecosystem disservices from nutrient pollution.

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Section: Plos Onementioning

confidence: 99%

Quantifying nutrient recovery efficiency and loss from compost-based urban agriculture

2020

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“…Research in biological nutrient removal technologies applied to anaerobic supernatants was started in the early 90's. Both intensive (based on the use of bioreactors) and extensive (including wetlands) systems have been considered (Monfet et al, 2018). "Nitrification" was the most active topic because to achieve biological N-removal, nitrification is necessary for both conventional strategies based on heterotrophic denitrification and advanced strategies based on anammox.…”

Section: 65mentioning

confidence: 99%

“…to produce added-value products (Rehl and Müller, 2011;Sheets et al, 2015). Otherwise, the liquid fraction -also named reject water, supernatant, or centrate, among other names, depending on the context and separation technology applied, and which usually contains the larger part of N and potassium-can be used for the fertigation of nearby arable land, or post-processed in accordance with its typical low C:N ratio applying nutrient removal or nutrient recovery alternatives (Malamis et al, 2014;Mehta et al, 2015;Monlau et al, 2015;Sheets et al, 2015;Vaneeckhaute et al, 2017;Monfet et al, 2018). N-removal involves the conversion of ammonium (NH + 4 ) to nitrogen gas (N 2 ), an innocuous gas which is released to the atmosphere.…”

Section: Introductionmentioning

confidence: 99%

Research Trends on Nutrient Management From Digestates Assessed Using a Bibliometric Approach

Magrí

2018

Front. Sustain. Food Syst.

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Anaerobic digestion is often applied for biological conversion and valorization of organic waste, waste water and other biomass sources as renewable energy and biofuel in the form of biomethane. Composition of the material remaining after digestion, or digestate, is highly dependent on processed feedstocks. This by-product is usually rich in nutrients such as nitrogen and phosphorus, so it is potentially reusable as fertilizer or nutritive broth in agricultural systems. Alternatively, the digestate may need post-treatment based on nutrient removal or recovery strategies. The use of life-cycle assessment tools is becoming popular to analyze nutrient handling scenarios. This study reviews, through a bibliometric-based approach, the research outputs and global trends in the area of knowledge of nutrient management from digestates in the last 30 years, 2017 included. Documentary production followed an upward trend, with a relative productivity in the last 3 years greater than 37% of the total number of appeared publications. China, USA and Spain were the three most prolific countries. The particular interest in nutrient management alternatives and its evolution were identified. Trends for promoting sustainability include low environmental impact, holistic agro-energy solutions, reduced consumption of resources during digestate processing, and circular economy scenarios based on concepts such as (bio)refinery and recovery of valuable and marketable products.

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“…As shown by Monfet et al ., the anaerobic AOB process has been widely used for nutrient recovery and it has been recently considered as a novel route for N removal in MBBR systems . Szatkowska et al .…”

Section: Membrane Biofilm Reactorsmentioning

confidence: 99%

“…56,71 As shown by Monfet et al, the anaerobic AOB process has been widely used for nutrient recovery and it has been recently considered as a novel route for N removal in MBBR systems. 72 Szatkowska et al studied a simultaneous partial nitritation/Anammox process in MBBR for completely autotrophic N removal. They reported that bacterial culture was able to perform both processes, Anammox and partial nitritation, simultaneously in a single-stage reactor at a technical-scale pilot plant.…”

Section: Moving Bed Biofilm Reactor (Mbbr)mentioning

confidence: 99%

A review on the advances in nitrifying biofilm reactors and their removal rates in wastewater treatment

Chaali

Naghdi

Brar

et al. 2018

J of Chemical Tech & Biotech

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Growing demand for efficient wastewater treatment systems is spurring on the development of new technologies. Biofilm‐based reactors can be used for the treatment of a variety of wastewaters and these reactors are resistant to toxic environments. Bioreactors, such as sequencing batch biofilm and moving bed biofilm are advanced techniques to treat various types of wastewaters with diverse operating conditions. Ammonium oxidizing bacteria, nitrite oxidizing bacteria and Anammox (anaerobic ammonium oxidation) bacteria are reported to be responsible for nutrient removal. In recent decades, the performance of these systems has been studied widely and compared for a number of wastewater treatment applications. In general, they are particularly suitable for high‐rate nitrification and nitrogen removal. The efficiency of these reactors has been confirmed in the laboratory and large‐scale plants. Their efficiency depends on the surface area of the biocarrier, the filling percentage volume of biofilm carriers, organic loading and diffused aeration supply. Chemical oxygen demand removal of 50–98% was reported for <12 h hydraulic retention time, 0.2 to 6.5 mg L−1 dissolved oxygen concentration and temperature range 15–35 °C. Also, the ratio of nitrate to ammonium conversion was from 0.2 to 90 and N2 conversion was from 0 to 8.5 mg. This review studied each of these bioreactors in the removal of nutrients (nitrogen, phosphorus and oxygen) from different wastewaters and compared them to conventional treatment. The review also includes the relevant studies on laboratory and pilot‐scale bioreactors to enhance their performance and reduce their costs. © 2018 Society of Chemical Industry

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Nutrient removal and recovery from digestate: a review of the technology

Cited by 126 publications

References 125 publications

Quantifying nutrient recovery efficiency and loss from compost-based urban agriculture

Quantifying nutrient recovery efficiency and loss from compost-based urban agriculture

Research Trends on Nutrient Management From Digestates Assessed Using a Bibliometric Approach

A review on the advances in nitrifying biofilm reactors and their removal rates in wastewater treatment

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