Analysis of utilization technologies for Eichhornia crassipes biomass harvested after restoration of wastewater

Wei, Feng; Xiao, Kai; Zhou, Wenbing; Zhu, Duanwei; Zhou, Yiyong; Yuan, Y. Connie; Xiao, Naidong; Wan, Xiaoliang; Yue, Hua; Zhao, Jin

doi:10.1016/j.biortech.2016.10.047

Cited by 71 publications

(37 citation statements)

References 84 publications

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“…Zn and Ca were found to be more portable but the presence of non-essential metal ions resist their nature. Metal ions were usually accumulated highly in fibrous root plant and the accumulation was justified by E. Crassipes after the experimental period [14].…”

Section: Discussionmentioning

confidence: 99%

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Accumulation of Heavy Metal Ions by Eichhornia Crassipes from Battery Industry Effluent under the Influence of Cattle Manure

Myilsamy

Angamuthu²,

Marimuthu³

2017

JAC

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Phytoremediation, an emerging technology which uses plants to remove contaminants of concern (COC) such as organic and inorganic compounds especially heavy metals (HM). The present study focuses on assessing the toxicity of heavy metals available in effluents discharged from industries and the accumulation ability of an aquatic plant, Eichhornia crassipes (water hyacinth). Phytoremedial potential of E. Crassipes and HM interaction between soil and water were evaluated in the present study under the presence of cow dung manure as an enhancer. Heterogenous accumulation of metal ions were found in the plant. Heavy metal concentration in plant parts were varied for roots and shoots. The concentration of HM ions in the plant parts were varied from root to shoot. Value of translocation factor (TF) was found to be in the region 0.5 â€“ 0.8, with Fe has low (0.51) and Pb has high (0.77), bioconcentration factor (BCF) were in the order of Ar > Ca > Zn > Fe > Pb at both roots and shoots. Transposition factor (TrF) of all HM ions were >1.5 except for Zn (1.21). E. Crassipes was found to accumulate a large amount of HM ions and could be used for efficient treatment of contaminated water.

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Section: Discussionmentioning

confidence: 99%

“…c o m considered as harmful plant [12,13]. It has been studied on the removal of heavy metal ions presents in water and found to have the potential to accumulate large metal ions in its root [14]. Because of its high biomass, tolerance and heavy metal uptake capacity it could be used in the water treatment process.…”

Section: Introductionmentioning

confidence: 99%

Accumulation of Heavy Metal Ions by Eichhornia Crassipes from Battery Industry Effluent under the Influence of Cattle Manure

Myilsamy

Angamuthu²,

Marimuthu³

2017

JAC

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“…The cell walls of roots act as a biological semipermeable membrane, which is difficult for large molecular weight substances, nonionic compounds, and colloids to penetrate. There is also a large contact area between the root system and the water surface, which forms a filter layer capable of absorbing a variety of heavy metals to improve water quality [8,29]. As shown in Figure 3b,c, the voids between the taproots and fibrous roots did not change significantly in karst water with 60 and 80 mg/L Ca 2+ .…”

Section: Morphology Analysismentioning

confidence: 99%

“…This plant is known to adapt to a wide variety of environmental conditions and even grows well in sewage water. Importantly, E. crassipes possesses a high heavy metal tolerance and uptake efficiency and has therefore become popular for water phytoremediation [8]. E. crassipes can reproduce quickly and absorb various pollutants [9].…”

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confidence: 99%

Effects and Mechanisms of Calcium Ion Addition on Lead Removal from Water by Eichhornia crassipes

Zhou

Jiang

Qin

et al. 2020

IJERPH

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Karst water is rich in calcium ions (Ca 2+ ) and exhibits poor metal availability and low biodegradation efficiency. This study sought to analyze the effects and mechanisms of Ca 2+ on lead (Pb) removal and absorption by Eichhornia crassipes (a floating plant common in karst areas). Moreover, the morphology and functional groups of E. crassipes in water were characterized via SEM, and FTIR. The results demonstrated that the removal rate of Pb in karst water (85.31%) was higher than that in non-karst water (77.04%); however, the Pb bioconcentration amount (BCA) in E. crassipes roots in karst water (1763 mg/kg) was lower than that in non-karst water (2143 mg/kg). With increased Ca 2+ concentrations (60, 80, and 100 mg/L) in karst water, the Pb removal rate increased (85.31%, 88.87%, and 92.44%), the Pb BCA decreased (1763, 1317, and 1095 mg/kg), and the Ca BCA increased (6801, 6955, and 9368 mg/kg), which was attributed to PbCO 3 and PbSO 4 precipitation and competitive Ca and Pb absorption. High Ca 2+ concentrations increased the strength of cation exchange, alleviated the fracture degree of fibrous roots, reduced the atrophy of vascular bundles, protected the cell wall, promoted C-O combined with Pb, enhanced the strength of O-H, SO 4 2− , C=O, and reduced the oxidization of alkynyl acetylene bonds.industrial wastewater discharged by the lead smelting industry. Pb remains and accumulates in the food chain after entering the environment, which causes serious toxicity to organisms. Moreover, Pb affects plant photosynthesis and transpiration capacity [5,6]; therefore, Pb remediation has become the focus of many studies worldwide. Eichhornia crassipes is an aquatic floating plant that is widely distributed all over the world and occurs in large quantities in karst areas in China. E. crassipes has broad, thick, glossy, ovate leaves and stems, which are important for photosynthesis, food production, gas exchange, and water transpiration [7]. This plant is known to adapt to a wide variety of environmental conditions and even grows well in sewage water. Importantly, E. crassipes possesses a high heavy metal tolerance and uptake efficiency and has therefore become popular for water phytoremediation [8]. E. crassipes can reproduce quickly and absorb various pollutants [9]. Suryandari et al.[10] also demonstrated Pb removal efficiencies of up to 99.71% in E. crassipes harvested after nine days.Calcium (Ca) is an essential element for plants; it is an important regulator of plant growth and supports the structure and stability of cell walls, membranes, and membrane-binding proteins. Ca is also a second messenger that regulates the response of plants to environmental changes [11]. Moreover, certain Ca 2+ concentrations could promote growth and development, metabolism, cell structure, and adaptability to heavy metal stress [12][13][14]. Ca 2+ could also inhibit the transport of heavy metals from underground to aboveground plant structures [15]. Increased Ca 2+ concentrations could reduce heavy metal solubility [16] and allevia...

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“…Amongst those ubiquitously used macrophytes, E. crassipes and M. aquaticum have exhibited excellent capacity for pollutant removal because of their superior tolerance to, and efficient absorption of, N and P nutrients, as well as heavy metals, etc. [24]. However, E. crassipes has been found to be an exotic species without natural enemies, which will likely deteriorate the ecosystems in the long term [25].…”

Section: Introductionmentioning

confidence: 99%

Myriophyllum aquaticum-Based Surface Flow Constructed Wetlands for Enhanced Eutrophic Nutrient Removal—A Case Study from Laboratory-Scale up to Pilot-Scale Constructed Wetland

Feng

Zhang

et al. 2018

Water

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Water pollution caused by various eutrophic nutrients such as nitrogen (N) and phosphorus (P), such as outbreaks of eutrophication in rivers and lakes, has become a serious environmental problem in China. Such problems have spurred extensive studies aiming at finding environmentally friendly solutions. Various constructed wetlands (CWs), planted with different macrophytes, have been considered as environmentally safe technologies to treat various wastewaters for several decades. Due to their low energy and operational requirements, CWs are promising alternative solutions to water eutrophication problems. Within the CWs, macrophytes, sediments, and the microbial community are indispensable constituents of such an ecosystem. In this study, a laboratory-scale surface flow CW (LSCW) was constructed to investigate the effects of two different plants, Eichhornia (E.) crassipes (Mart.) Solms and Myriophyllum (M.) aquaticum, on the removal of eutrophic N and P. The results showed that both plants could significantly reduce these nutrients, especially ammonium (NH4+), and LSCW planted with M. aquaticum performed better (82.1% NH4+ removal) than that with E. crassipes (66.4% NH4+ removal). A Monod model with a plug flow pattern was used to simulate the relationship of influent and effluent concentrations with the kinetic parameters of this LSCW. Based on the model, a pilot-scale surface flow CW (PSCW) was designed, aiming to further enhance N and P removal. The treatment with M. aquaticum and polyethylene materials showed the best removal efficiency on NH4+ as well as on total nitrogen and phosphorus. In general, the enlarged PSCW can be a promising solution to the eutrophication problems occurring in aquatic environments.

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Analysis of utilization technologies for Eichhornia crassipes biomass harvested after restoration of wastewater

Cited by 71 publications

References 84 publications

Accumulation of Heavy Metal Ions by Eichhornia Crassipes from Battery Industry Effluent under the Influence of Cattle Manure

Accumulation of Heavy Metal Ions by Eichhornia Crassipes from Battery Industry Effluent under the Influence of Cattle Manure

Effects and Mechanisms of Calcium Ion Addition on Lead Removal from Water by Eichhornia crassipes

Myriophyllum aquaticum-Based Surface Flow Constructed Wetlands for Enhanced Eutrophic Nutrient Removal—A Case Study from Laboratory-Scale up to Pilot-Scale Constructed Wetland

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