Assessing modified aluminum-based water treatment residuals as a plant-available phosphorus source

Banet, Travis; Massey, Michael S.; Zohar, Irit; Litaor, M. Iggy; Ippolito, James A.

doi:10.1016/j.chemosphere.2020.125949

Cited by 10 publications

(7 citation statements)

References 26 publications

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“…In most reported studies, the emphasis is also made on the size of particles, solution pH, and contact time to evaluate optimal removal conditions, maximum capacities, and kinetic and adsorption models using batch and column tests. Table S3 † also includes several reports concerning more specifically the presence of phosphate and nutrients in soils and aquatic sediments and constructed wetlands to which DWTR can be added as an efficient adsorbent 18,[63][64][65] or as a source of nutrients 19,66,67 for both short and long-term stability.…”

Section: Phosphates and Phosphorus Forms Other Nutrients And Natural ...mentioning

confidence: 99%

“…The addition of DWTR to soil and constructed wetlands as an adsorbent or as a source of nutrients such as phosphorus, has also been studied. [18][19][20][21] Numerous applications of the re-utilization of modified (thermally or mixed with other compounds) and non-modified DWTR are presented in the literature. One of them includes the recovery of coagulants using acid, alkaline, ion exchange, or filtration treatments for the removal of turbidity, and biological and chemical oxygen demand from wastewater.…”

Section: Introductionmentioning

confidence: 99%

“…The addition of DWTR to soil and constructed wetlands as an adsorbent or as a source of nutrients such as phosphorus, has also been studied. 18–21…”

Section: Introductionmentioning

confidence: 99%

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Re-utilization of drinking water treatment residuals (DWTR): a review focused on the adsorption of inorganic and organic contaminants in wastewater and soil

Belzile,

Chen

2024

Environ. Sci.: Water Res. Technol.

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Section: Phosphates and Phosphorus Forms Other Nutrients And Natural ...mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Re-utilization of drinking water treatment residuals (DWTR): a review focused on the adsorption of inorganic and organic contaminants in wastewater and soil

Belzile,

Chen

2024

Environ. Sci.: Water Res. Technol.

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“…This co‐application approach is also important since WTR and BS can increase the adsorptive capacity of chemical elements and the mitigation of nutrient leaching. Furthermore, the associated utilization of these wastes characterizes a waste‐to‐product strategy and can provide an integrated solution for managing both materials while a value‐added product (i.e., soil conditioner) is developed (Banet et al, 2020; Pereira et al, 2020). While BS use in agriculture has been extensively reported, few studies have investigated the co‐application of WTR and BS in field‐scale conditions (Ippolito et al, 2009; Mahdy et al, 2020).…”

Section: Introductionmentioning

confidence: 99%

Liming and co‐application of water treatment residuals with biosolids for conditioning sandy soils

et al. 2022

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Application of water treatment residuals (WTR) and biosolids (BS) might ameliorate fragile soils. However, studies integrating impacts of waste preparation methods such as liming and grinding associated with co-application approaches for soil conditioning are lacking. The present study aimed to evaluate the feasibility of agricultural use of WTR as well as their co-application with BS to ameliorate a sandy soil through assessing impacts on selected soil quality indicators and on nutrient and potentially toxic element concentration in plant tissue in addition to the biomass yield of annual crops. The following treatments were evaluated: non-amended soil (control); drying plus grinding and liming WTR; WTR co-application with BS at 3:1 ratio; and a soil amendment commercially available in Brazil. All treatments were soil incorporated in the 0.0-0.2 m layer at 30 Mg ha À1 dose (dry mass). Selected soil physical, hydraulic, and chemical parameters were determined. Furthermore, nutrients and potentially toxic elements concentration in plant tissue as well as the agronomic performance of maize and ryegrass were measured. The co-application of WTR and BS increased the soil content of P, Zn, and Cu in the 0.0-0.1 m layer. The concentration of these nutrients also was greater in ryegrass tissue and promoted the biomass yield in 51%. WTR did not increase contaminants and did not decrease the P content in soil and in plant tissue, independently of drying plus grinding and liming. Considering the conditions investigated in our study, WTR/BS co-application was environmentally safe and effective in ameliorating soil quality.

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“…Most of the environmental problems associated with WTP sludge are related with chemicals used in the treatment of raw water, including aluminum sulfate, which is used as a coagulant in the process of flocculating water treatment [6]. According to Banet et al (2020) [7], the accumulation of aluminum in soil and water compromises the development of aquatic plants since the presence of aluminum acts on the molecular structure of organisms, reducing the absorption of nutrients. The Al 3+ is the most toxic form of aluminum (Al) [8], causing inhibition of plant root growth [9], especially in tropical and acid soils [10], and is severely toxic [11].…”

Section: Introductionmentioning

confidence: 99%

Potencial contribuição do lodo da estação de tratamento de água (ETA) para a poluição de rios

et al. 2021

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Esta pesquisa teve como objetivo caracterizar o lodo de uma Estação de Tratamento de Água (ETA) de uma cidade costeira e tropical do nordeste brasileiro. Os parâmetros físico-químicos (cor, pH, turbidez, sólidos totais e sedimentáveis, demanda química de oxigênio e alumínio total), análises microbiológicas (coliformes termotolerantes) e ecotoxicológicas (semente de alface - Lactuca sativa) e do microcrustáceo marinho (Mysidopsis juniae) foram analisados em amostras de lodo do decantador e da água de lavagem dos filtros. Como esperado, o lodo do decantador apresentou maior quantidade de sólidos do que o filtro, mas, apesar disso, a concentração total de sólidos no filtro ultrapassou 86 vezes o limite para ser despejado nos corpos hídricos, segundo as diretrizes brasileiras. Além disso, as concentrações de alumínio estavam acima das diretrizes para água doce (910% - lodo do decantador e 210% - lodo do filtro). Em relação à ecotoxicidade, o lodo de ambos os estágios não afetou a germinação das sementes e ainda promoveu o crescimento de 30 a 60% das radículas. Por outro lado, o lodo do decantador mostrou-se significativamente tóxico para microcrustáceos em concentrações acima de 15%. Considerando que esses lodos podem ser lançados diretamente no rio em zona estuarina, destaca-se seu potencial de toxicidade ao meio aquático e a importância do tratamento adequado antes de sua disposição final.

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Assessing modified aluminum-based water treatment residuals as a plant-available phosphorus source

Cited by 10 publications

References 26 publications

Re-utilization of drinking water treatment residuals (DWTR): a review focused on the adsorption of inorganic and organic contaminants in wastewater and soil

Re-utilization of drinking water treatment residuals (DWTR): a review focused on the adsorption of inorganic and organic contaminants in wastewater and soil

Liming and co‐application of water treatment residuals with biosolids for conditioning sandy soils

Potencial contribuição do lodo da estação de tratamento de água (ETA) para a poluição de rios

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