Phytosphere purification of urban domestic wastewater

Qu, Yimeng; Yang, Yafeng; Sonne, Christian; Chen, Xiangmeng; Yue, Xiaochen; Gu, Haiping; Lam, Su Shiung; Peng, Wanxi

doi:10.1016/j.envpol.2023.122417

Cited by 10 publications

(2 citation statements)

References 137 publications

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“…As a result of urbanization, industrialization, food security, and the need to support global economic growth, significant amounts of urban wastewater (UW) would be produced [1,2]. The generated UW comprises several organic, inorganic, and synthetic compounds, in addition to being an abundant resource of nitrogenous and phosphorus compounds [3][4][5][6]. Releasing the nitrogen and phosphorusrich UW directly into the environment could result in eutrophication and the leaching of harmful pollutants into the soil and the air [7].…”

Section: Introductionmentioning

confidence: 99%

Utilization of Microalgae for Urban Wastewater Treatment and Valorization of Treated Wastewater and Biomass for Biofertilizer Applications

Khan,

Thaher,

Abdulquadir

et al. 2023

Sustainability

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Rapid urbanization has substantially increased freshwater consumption and consequent wastewater generation. The produced wastewater is an abundant resource of phosphorus, nitrogen, and organics. Currently, well-established activated sludge processes are utilized in conventional wastewater treatment plants to remove organics. However, removing nitrogenous and phosphorus compounds continues to be challenging and energy-intensive for urban wastewater treatment plants. Therefore, the current study aims to understand how photosynthetic microalgae can recover phosphorus and nitrogen from urban wastewater and how wastewater-grown microalgae biomass may be used as a biofertilizer and biostimulant. Utilizing microalgae biomass treated with urban wastewater as a biofertilizer promotes plant growth in a manner similar to other organic manures and conventional fertilizers while minimizing nutrient loss to the soil. Furthermore, the microalgal recovery of nutrients from urban wastewater could have potential energy reductions of 47% and 240% for nitrogen and phosphorus, respectively. In addition to producing treated wastewater suitable for a variety of irrigation systems, microalgae biomass is a potential sustainable alternative resource that could reduce conventional inorganic fertilizer usage.

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Section: Introductionmentioning

confidence: 99%

Utilization of Microalgae for Urban Wastewater Treatment and Valorization of Treated Wastewater and Biomass for Biofertilizer Applications

Khan,

Thaher,

Abdulquadir

et al. 2023

Sustainability

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show abstract

“…For instance, aquaculture feed is rich in PTEs such as Cu and Zn [18]. Purified urban sewage contains PTEs such as Cd and Cr [19]. Will the introduction of feed or purified sewage into the stagnant water area exacerbate the environmental pressure on the aquatic ecosystem?…”

Section: Introductionmentioning

confidence: 99%

The Patterns of Migration of Potentially Toxic Elements from Coal Mining Subsidence Areas and Associated Soils to Waterlogged Areas

Tan,

Dong,

et al. 2023

Toxics

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It is crucial for effectively controlling potentially toxic element (PTE) pollution to understand the pollution situation, ecological risks, health risks, and migration patterns of PTEs. However, currently, no research has been conducted on the migration patterns of soil PTEs from coal mining subsidence areas to waterlogged areas under different restoration modes. In this study, a total of 15 sediment samples and 60 soil samples were collected from landscaped wetlands, aquaculture wetland, fish–photovoltaic complementary wetland, photovoltaic wetland, and waterlogged areas with untreated coal mining subsidence. The PTE pollution status, ecological risks, health risks, migration patterns, and the important factors influencing the migration were analyzed. The results indicated that the comprehensive pollution level of PTEs in waterlogged areas with coal mining subsidence can be reduced by developing them into landscaped wetlands, aquaculture wetlands, fish–photovoltaic complementary wetlands, and photovoltaic wetlands. Additionally, the closer to the waterlogged area, the higher the Cu content in the subsidence area soil is, reaching its peak in the waterlogged area. The Cd was influenced positively by SOC and pH. The research results were of great significance for formulating reclamation plans for waterlogged areas and controlling PTE pollution.

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Agronomy Suitability of Treated Wastewater with Microalgae as Alternative Sources for Irrigation

El-Moustaqim,

Mabrouki,

Hmouni

2024

World Sustainability Series

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Phytosphere purification of urban domestic wastewater

Cited by 10 publications

References 137 publications

Utilization of Microalgae for Urban Wastewater Treatment and Valorization of Treated Wastewater and Biomass for Biofertilizer Applications

Utilization of Microalgae for Urban Wastewater Treatment and Valorization of Treated Wastewater and Biomass for Biofertilizer Applications

The Patterns of Migration of Potentially Toxic Elements from Coal Mining Subsidence Areas and Associated Soils to Waterlogged Areas

Agronomy Suitability of Treated Wastewater with Microalgae as Alternative Sources for Irrigation

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