Nitrogen and Phosphorous Recovery from Municipal Wastewater and Sludge

Nazari, Laleh; Xu, Chunbao; Ray, Madhumita B.

doi:10.1007/978-981-15-9267-6_4

Cited by 3 publications

(2 citation statements)

References 31 publications

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“…Nitrogen and phosphorous found in sewage sludge contribute to increasing soil fertility, and such elements are of primary importance for plant growth [46]. However, following the addition of CSSs, the total N in soil did not increase.…”

Section: Css Effect On Soil Fertilitymentioning

confidence: 95%

From Waste to Resources: Sewage Sludges from the Citrus Processing Industry to Improve Soil Fertility and Performance of Lettuce (Lactuca sativa L.)

et al. 2023

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The citrus industry produces a large number of sludges as a consequence of citrus wastewater treatment. The correct disposal of citrus sewage sludges (CSSs) has been attempted using anaerobic digestion, aerobic digestion, and lime stabilization. However, since CSSs hold nitrogen, phosphorus, and other macronutrients required by crops, in line with the circular economy principles, they could be utilized for agricultural purposes, such as organic fertilizer. The aim of this study was to assess the effect of CSSs supplied at different doses on soil fertility and lettuce performance. To this end, a pot experiment was established. The soil was amended with CSSs at three different concentrations (2.5, 5, 10 t ha−1). After 46 days of lettuce growth, the experiment was stopped, and soils and plants were analyzed. Soil amended with CSSs showed an increase in total organic C ranging from 7% to 11%. Additionally, available P increased but only at the highest CSS dose. The addition of CSSs affected the biochemical properties of soil, but a univocal trend related to the number of CSSs applied was not found. Microbial biomass C increased only with the highest dose of CSS applied, while the metabolic quotient (qCO2) decreased. Such a positive effect on soil fertility and soil microorganisms, in turn, lead to an increase in lettuce biomass. Moreover, results indicated that following CSS addition, lettuce crops adsorbed more N in leaves than in roots, whereas P, Ca, Mg, K, and Na showed an opposite pattern and increased more consistently in roots. In conclusion, amendment with CSSs enhances soil fertility by increasing, regardless of CSS dose, total organic C, and, at the highest dose, P availability and microbial biomass C. Such improvement in soil fertility, in turn, increases lettuce biomass production without affecting its quality, i.e., alteration of the (K + Na)/(Ca + Mg) ratio.

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Section: Css Effect On Soil Fertilitymentioning

confidence: 95%

From Waste to Resources: Sewage Sludges from the Citrus Processing Industry to Improve Soil Fertility and Performance of Lettuce (Lactuca sativa L.)

et al. 2023

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“…As a result, water sources are becoming increasingly contaminated with a range of harmful substances, including chemicals, dyes (Agarwal et al, 2022), pesticides (Ajiboye et al, 2022), heavy metals (Ishwari et al, 2022;Uko et al, 2022;Yadav et al, 2023b), micro plastics (Rabari et al, 2023) and biological contaminants such as pathogens (Patel et al, 2022). Municipal wastewater is discharged from commercial, institutional and similar facilities (Nazari et al, 2021). Despite being a crucial resource, water bodies across the world are under threat due to the discharge of untreated sewage water (Zhao et al, 2021).…”

Section: Introductionmentioning

confidence: 99%

Efficient and eco-friendly treatment of wastewater through sustainable purification using agricultural waste and coagulation kinetic modelling

Varsani,

Vyas,

Parmar

et al. 2024

Front. Environ. Sci.

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This scientific manuscript presents a comprehensive investigation into the purification of municipal sewage water through the utilization of agricultural waste materials [Arachis hypogaea shells (AHS), Triticum aestivum straw (TAS), and Gossypium herbaceum shells (GHS)]. The treatment process involved a modified approach with 24 hs of aeration and the addition of 1 gm of agricultural waste biomaterials. The performance of the bio-coagulant was evaluated by monitoring the reduction of physico−chemical parameters. AHS exhibited remarkable turbidity removal efficiency of 93.37%, supported by pseudo−first and pseudo−second−order kinetic modelling. The application of agricultural waste materials significantly reduced key parameters, including solids (up to 70%–80%), dissolved oxygen (DO) (50%), biological oxygen demand (BOD) and chemical oxygen demand (COD) (up to 90%). Principal Component Analysis (PCA) showed the significant positive loading of PC1 (84.71%) that influencing the dual treatments of wastewater. Statistical analysis (p ≤ 0.05) confirmed the effectiveness of agricultural biomaterials in sewage water treatment compared to pre−treated water. The turbidity coagulation pseudo−first−order and pseudo−second−order kinetic modelling also revealed the efficiency against turbidity reduction in municipal sewage water. The findings underscore the significance of utilizing agricultural waste materials for sustainable and efficient purification of municipal sewage water, addressing water pollution and enhancing wastewater treatment processes.

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Recent advances in the effective removal of hazardous pollutants from wastewater by using nanomaterials—A review

Chahar

Khaturia

Singh

et al. 2023

Front. Environ. Sci.

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Environmental nanotechnology has developed rapidly over the past few decades due to the fast advancement of nanotechnology and nanomaterials (NMs). Due to their nanoscale size, NMs are receiving immense attention in research and development worldwide. Their nano size has led to better catalysis, high reactivity, and high adsorption capacity. In wastewater treatment, nanotechnology has significant potential to improve the performance and efficiency of water decontamination; more effectively, it provides a sustainable way to keep water supplies safe. Numerous studies have found that removing harmful components from wastewater by employing nanoparticles in conjunction with various treatment methods is effective. The purpose of the current investigation is to conduct a review of the envisioned applications of various NMs in the treatment of wastewater. These NMs include carbonaceous NMs, metal-containing nanoparticles, and nanocomposites, all of which will be reviewed and highlighted in depth.

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Nitrogen and Phosphorous Recovery from Municipal Wastewater and Sludge

Cited by 3 publications

References 31 publications

From Waste to Resources: Sewage Sludges from the Citrus Processing Industry to Improve Soil Fertility and Performance of Lettuce (Lactuca sativa L.)

From Waste to Resources: Sewage Sludges from the Citrus Processing Industry to Improve Soil Fertility and Performance of Lettuce (Lactuca sativa L.)

Efficient and eco-friendly treatment of wastewater through sustainable purification using agricultural waste and coagulation kinetic modelling

Recent advances in the effective removal of hazardous pollutants from wastewater by using nanomaterials—A review

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