Nutrient removal efficiency and biomass production of different bioenergy plants in hypereutrophic water

Zhao, Fengliang; Yang, Weidong; Zeng, Zheng; Li, Hong; Yang, Xiaoe; He, Zhenli; Gu, Baojing; Rafiq, Muhammad Tariq; Peng, Hongxia

doi:10.1016/j.biombioe.2012.04.003

Cited by 78 publications

(32 citation statements)

References 33 publications

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“…Previous studies reported a number of wetland plant species that have been applied to phytoremediation of eutrophic water using constructed wetland, including Miscanthus sinensis Anderss (sp. ), Vetiveria zizanioides, Acorus calamus and Thalia dealbata (Zhao et al, 2012a;Zhao et al, 2012b). However, the biomass of the plants must be properly harvested in order to sustain nutrient removal efficiency of the wetland since decomposition of plant litters/biomass may return all the nutrients back into the water.…”

Section: Introductionmentioning

confidence: 99%

Capacity and mechanisms of ammonium and cadmium sorption on different wetland-plant derived biochars

Cui

Hao²,

Zhang

et al. 2016

Science of The Total Environment

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223

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Section: Introductionmentioning

confidence: 99%

Capacity and mechanisms of ammonium and cadmium sorption on different wetland-plant derived biochars

Cui

Hao²,

Zhang

et al. 2016

Science of The Total Environment

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223

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“…Plants like Thalia dealbata, Vetiveria zizanioides, and Phragmites sp. are widely used in constructed wetlands for eutrophication control (Valipour et al, 2009;Zhao et al, 2012). Seo et al (2010) examined the nitrate and phosphate removal potential of three Salix species in a eutrophic aquatic environment, and found that rosegold pussy willow is best for N removal, and the highest P removal was observed in giant pussy willow.…”

Section: Introductionmentioning

confidence: 99%

Sorption of ammonium and phosphate from aqueous solution by biochar derived from phytoremediation plants

Zeng

Zhang²,

et al. 2013

J. Zhejiang Univ. Sci. B

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170

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Abstract:The study on biochar derived from plant biomass for environmental applications is attracting more and more attention. Twelve sets of biochar were obtained by treating four phytoremediation plants, Salix rosthornii Seemen, Thalia dealbata, Vetiveria zizanioides, and Phragmites sp., sequentially through pyrolysis at 500 °C in a N 2 environment, and under different temperatures (500, 600, and 700 °C) in a CO 2 environment. The cation exchange capacity and specific surface area of biochar varied with both plant species and pyrolysis temperature. The magnesium (Mg) content of biochar derived from T. dealbata (TC) was obviously higher than that of the other plant biochars. This biochar also had the highest sorption capacity for phosphate and ammonium. In terms of biomass yields, adsorption capacity, and energy cost, T. dealbata biochar produced at 600 °C (TC600) is the most promising sorbent for removing contaminants (N and P) from aqueous solution. Therefore, T. dealbata appears to be the best candidate for phytoremediation application as its biomass can make a good biochar for environmental cleaning.

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“…Nutrients accumulation in the samples harvested was varied between 7.4-8.3 g N kg −1 DW and 6.4-7.5 g P kg −1 DW in the hydroponic treatment units during the study period. A better nutrient accumulation (14.2 g N kg −1 DW and 12.6 g P kg −1 DW of vetiver) was reported in the literature (Zhao et al 2012). …”

Section: Plant Growth and Nutrient Analysis Of Vetiver Grassmentioning

confidence: 87%

Bioremediation of brewery wastewater using hydroponics planted with vetiver grass in Addis Ababa, Ethiopia

Abebe

Tefera

Kloos

et al. 2018

Bioresour. Bioprocess.

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Background: Bioremediation is the use of biological interventions for mitigation of the noxious effects caused by pollutants in the environment including wastewater. It is very useful approach for a variety of applications in the area of environmental protection. It has become an attractive alternative to the conventional cleanup technologies that employ plants and their associated microorganisms to remove, contain, or render harmless environmental contaminants.Methods: Three parallel hydroponic treatment systems (each 2 m long × 0.75 m wide × 0.65 m deep) and one control unit were filled with brewery wastewater to an effective depth of 0.5 m. Two sets of floating polystyrene platform were used for each treatment unit to support vetiver tillers for conducting bioremediation study. The wastewater was fed to the hydroponic treatment units at hydraulic loading rate of 10 cm d −1 and hydraulic residence time of 5 days. Influent and effluent samples were collected once a month for 7 months, and analyzed to determine the various parameters relating to the water quality including plant growth and nutrient analyses.Results: Vetiver grass grew and established with well-developed root and shoots in the hydroponics under fluctuations of brewery wastewater loads and showed phytoremedial capacity to remove pollutants. Removal efficiencies for BOD 5 and COD were significant (p < 0.05), up to 73% (748-1642 mg l −1 inlet), and up to 58% (835-2602 mg l −1 inlet), respectively. Significant removal efficiencies (p < 0.05) ranged from 26 to 46% (14-21 mg l −1 inlet) for TKN, 28-46% (13-19 mg l −1 inlet) for NH 4 + -N, 35-58% (4-11 mg l −1 inlet) for NO 3 − -N, and 42-63% (4-8 mg l −1 inlet) for PO 4 −3 -P were recorded. Nutrient accumulation in the samples harvested were varied between 7.4 and 8.3 g N kg −1 dry weight and 6.4-7.5 g P kg −1 dry weight in the hydroponic treatment units during the study period. Conclusions:This study has shown suitability of vetiver grass for organics and nutrient removal in the bioremediation of brewery wastewater using hydroponics technique in addition to production of valuable biomass. Bioremediation using hydroponics is green and environmentally sustainable approach that offers promising alternative for wastewater treatment in developing countries including Ethiopia.

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Nutrient removal efficiency and biomass production of different bioenergy plants in hypereutrophic water

Cited by 78 publications

References 33 publications

Capacity and mechanisms of ammonium and cadmium sorption on different wetland-plant derived biochars

Capacity and mechanisms of ammonium and cadmium sorption on different wetland-plant derived biochars

Sorption of ammonium and phosphate from aqueous solution by biochar derived from phytoremediation plants

Bioremediation of brewery wastewater using hydroponics planted with vetiver grass in Addis Ababa, Ethiopia

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