Effects of fillers combined with biosorbents on nutrient and heavy metal removal from biogas slurry in constructed wetlands

Guo, Xiongfei; Cui, Xingyi; Li, Huashou

doi:10.1016/j.scitotenv.2019.134788

Cited by 51 publications

(9 citation statements)

References 43 publications

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“…Nitrogen (N) and phosphorus (P) are un-substitutable micronutrients for the growth of all living organisms (Guo et al, 2020;Wang et al, 2020). Such nutrients are commonly employed as fertilizers for crops and plants in agriculture (Hunter & Deshusses, 2020).…”

Section: Introductionmentioning

confidence: 99%

Impacts of hydraulic retention time on a continuous flow mode dual-chamber microbial fuel cell for recovering nutrients from municipal wastewater

Ngo

Guo

et al. 2020

Science of The Total Environment

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Section: Introductionmentioning

confidence: 99%

Impacts of hydraulic retention time on a continuous flow mode dual-chamber microbial fuel cell for recovering nutrients from municipal wastewater

Ngo

Guo

et al. 2020

Science of The Total Environment

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“…Under the conditions of intermolecular hydrogen bonds and direct electrostatic attraction, COD in CWs added with biochar has a good removal effect [22]. At the same time, due to the action of π-π, both greenhouse gases and total nitrogen have a good removal effect [23]. Strong intermolecular π bonds, hydrogen bonds, and electrostatic attraction have been proven to be the main reasons for the high adsorption of pollutants by biochar [12].…”

Section: Improving the Performance Of Constructed Wetlands Using Biocharmentioning

confidence: 99%

Recent Advances in the Effects of Biochar on Constructed Wetlands: Treatment Performance and Microorganisms

Yu,

Huang,

Chen

et al. 2023

Separations

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Constructed wetlands (CWs) are a kind of green environmental protection technology, which are widely used in sewage treatment. Traditional CWs are faced with the problem of a low treatment effect of high-concentration sewage. In recent years, biochar, as a new type of adsorption material, has been used in CWs because of its advantages of large specific surface area, strong adsorption capacity, and wide material sources. This paper systematically summarized the characteristics of biochar and the preparation of biochar by studying the changes in microorganisms added to CWs and compared the effects of different treatment methods coupled with biochar on the treatment performance of CWs. The effects of biochar coupled with CWs on enzyme activity, functional genes, metabolites, and microbial communities were investigated. This review summarizes how different preparation methods affect the properties of biochar and how these biochar properties cause changes in the microorganisms added to CWs. It provides a new theoretical basis for the treatment of pollutants in CWs.

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“…The main mechanisms of phosphorus removal in constructed wetlands are natural sedimentation, absorption and the assimilation of plants, excessive absorption of phosphorus by denitrifying phosphate accumulating organisms (DPAO), and the adsorption of phosphorus by substrate, among which the most important part is the adsorption of phosphorus by the substrate [11]. At present, the main method to strengthen phosphorus removal in constructed wetlands is to study new absorbents for phosphate removal, such as fly ash, shale, dolomite, and kaoline [12][13][14][15][16][17]. Studies [14] have shown that slag, oyster shell, concrete and cinder have greater theoretical saturation adsorption capacity for TP (Total phosphorus).…”

Section: Introductionmentioning

confidence: 99%

Study on Phosphorus Removal Pathway in Constructed Wetlands with Thermally Modified Sepiolite

Gao

Zhang

2022

Sustainability

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Constructed wetlands, as natural sewage treatment ecosystems, have been widely used in the fields of rural domestic sewage and sewage plant tailwater treatment. However, the synchronous removal of phosphorus in most constructed wetlands is not ideal. This study aimed to prepare thermally modified sepiolites with high phosphorus adsorption capacities and design a constructed wetland based on them. Thermal modification was adopted to enhance the adsorption capacity of sepiolite based on its high specific surface area and ion exchange capacity. The physicochemical properties and adsorption performance of thermally modified sepiolite were studied. The results showed that the specific surface area and adsorption capacity of thermally modified sepiolite were higher than those of natural sepiolite, reaching 19.494 mg·g−1. The concentration of effluent and the removal of constructed wetlands based on thermally modified sepiolite was 0.07 mg·g−1 and 91.05%. An analysis of the phosphorus forms in constructed wetlands proved that the main phosphorus removal pathway is the adsorption of substrate, and the form of phosphorus was mainly Ca/Mg-P and Fe/Al-P.

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Effects of fillers combined with biosorbents on nutrient and heavy metal removal from biogas slurry in constructed wetlands

Cited by 51 publications

References 43 publications

Impacts of hydraulic retention time on a continuous flow mode dual-chamber microbial fuel cell for recovering nutrients from municipal wastewater

Impacts of hydraulic retention time on a continuous flow mode dual-chamber microbial fuel cell for recovering nutrients from municipal wastewater

Recent Advances in the Effects of Biochar on Constructed Wetlands: Treatment Performance and Microorganisms

Study on Phosphorus Removal Pathway in Constructed Wetlands with Thermally Modified Sepiolite

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