Methods for the removal and recovery of nitrogen and phosphorus nutrients from animal waste: A critical review

Sajjad, Muhammad; Huang, Qing; Khan, Sardar; Nawab, Javed; Khan, Muhammad Amjad; Ali, Abid; Ullah, Rahman; Kubar, Aftab Ali; Guo, Genmao; Yaseen, Muhammad; Sajjad, Muhammad

doi:10.1016/j.chnaes.2023.05.003

Cited by 2 publications

(1 citation statement)

References 160 publications

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“…Ensuring the adoption of resource recovery requires the development of technologies to selectively separate nutrients from waste streams. Various techniques exist for nutrient removal such as biological methods, struvite precipitation, air stripping, membrane filtration, and adsorption. − Of these techniques, adsorption is a viable option because it is simple, efficient, scalable, low cost, low maintenance, and provides the opportunity for nutrient recovery. , Wastewater nutrient and pollutant removal with adsorption technologies has been implemented at various treatment scales (nonsewered systems, , rural, lab-scale, household, and full-scale wastewater treatment). Several classes of wastewater adsorbents have been described, including natural and synthetic zeolites and clays, polymeric ion exchangers, activated carbon and biochar, chitosan and cellulose, and metal oxide nanoparticles. − …”

Section: Introduction To Adsorption For Resource Recovery From Wastew...mentioning

confidence: 99%

Ligand Exchange Adsorbents for Selective Phosphate and Total Ammonia Nitrogen Recovery from Wastewaters

Clark,

Sharma,

Apraku

et al. 2024

Acc. Mater. Res.

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Metrics & MoreArticle Recommendations CONSPECTUS: Human interference in natural biogeochemical cycles has caused an unprecedented input of reactive phosphorus and nitrogen nutrients into the environment, contributing to perturbations of natural aqueous ecosystems (e.g., eutrophication). Furthermore, industrial phosphorus mining and Haber−Bosch ammonia production contribute significantly to global energy expenditures and greenhouse gas emissions.Existing wastewater treatment techniques, particularly those based on adsorption processes, have predominantly concentrated on nutrient removal, underutilizing the potential for the subsequent recovery of pure products. Recovering these nutrients from wastewaters (e.g., municipal, industrial, agricultural) can supplement mining and fertilizer production, leading to energy and emissions savings and contributing to a more circular resource economy. In addition, nutrient recovery provides economic incentives to expand the implementation of water treatment, which exhibits additional benefits, such as global public health and environmental remediation. Phosphate and total ammonia nitrogen (i.e., TAN, the sum of ammonia and ammonium) are emphasized in this Account because they comprise substantial portions of reactive phosphorus and nitrogen. Adsorption-based wastewater treatment processes are promising due to their simple construction and maintenance, scalability, and cost-effectiveness. However, adsorption of phosphate and TAN is generally attained through ion exchange (electrostatic attraction), which is a nonselective interaction. Additionally, acid or base used for adsorbent regeneration contributes most of the embedded energy and greenhouse gas emissions of the adsorption process. If adsorption could achieve high target nutrient selectivity and regenerability, then valuable phosphate and TAN products could be recovered efficiently and economically. Because phosphate and ammonia are uniquely strong nucleophiles among wastewater species, leveraging ligand exchange (coordinate covalent bonding) can enhance selectivity against competing ions. Because phosphate and ammonia have mild pH speciation equilibria that can interrupt coordinate covalent bonds, acid or base input for adsorbent regeneration can be minimized, mitigating the major contributors to energy, emissions, and cost.In this Account, we summarize our recent work on two ligand exchange adsorbents: (1) a ferric oxide-loaded poly(vinylbenzyl trimethylammonium) strong base anion exchange resin for selective phosphate recovery from municipal wastewater and (2) a zinc polyacrylate weak acid cation exchange resin for selective TAN recovery from hydrolyzed urine. To maximize adsorbent selectivity, capacity, and regenerability without eluting the immobilized ligand exchange electrophile (i.e., ferric oxide and divalent zinc) from the adsorbent, all interactions between the solutes, electrophile, and support polymer must be carefully controlled to favor the desired bonds. To optimize resource efficiency and material design, e...

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Section: Introduction To Adsorption For Resource Recovery From Wastew...mentioning

confidence: 99%

Ligand Exchange Adsorbents for Selective Phosphate and Total Ammonia Nitrogen Recovery from Wastewaters

Clark,

Sharma,

Apraku

et al. 2024

Acc. Mater. Res.

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Optimization of Recovery of Nutrients from Pig Manure Slurry through Combined Microbial Fuel Cell and Microalgae Treatment

Hernández-Fernández,

Iniesta-López,

Hernández Baños

et al. 2024

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Microbial fuel cells (MFCs) and microalgae–bacteria consortia represent two renewable and promising technologies of growing interest that enable wastewater treatment while obtaining high-value-added products. This study integrates MFCs and microalgae production systems to treat animal slurry, aiming to remove and recover organic and inorganic components while generating energy and producing biomass. The MFCs effectively eliminated Chemical Oxygen Demand (COD), organic nitrogen, and a portion of the suspended solids, achieving a maximum voltage of 195 mV and a power density of 87.03 mW·m−2. After pre-treatment with MFCs, the slurry was diluted to concentrations of 10%, 50%, and 100% and treated with microalgae–bacteria consortia. The results showed a biomass production of 0.51 g·L−1 and a productivity of 0.04 g·L−1·day−1 in the culture fed with 10% slurry, with significant removal efficiencies: 40.71% for COD, 97.76% for N-NH4+, 39.66% for N-NO2−, 47.37% for N-NO3−, and 94.37% for P-PO4−3. The combination of both technologies allowed for obtaining a properly purified slurry and the recovery of nutrients in the form of bioelectricity and high-value biomass. Increasing the concentration of animal slurry to be treated is essential to optimize and scale both technologies.

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Methods for the removal and recovery of nitrogen and phosphorus nutrients from animal waste: A critical review

Cited by 2 publications

References 160 publications

Ligand Exchange Adsorbents for Selective Phosphate and Total Ammonia Nitrogen Recovery from Wastewaters

Ligand Exchange Adsorbents for Selective Phosphate and Total Ammonia Nitrogen Recovery from Wastewaters

Optimization of Recovery of Nutrients from Pig Manure Slurry through Combined Microbial Fuel Cell and Microalgae Treatment

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