Water hyacinth (Eichhornia crassipes) waste as an adsorbent for phosphorus removal from swine wastewater

Chen, Xi; Chen, Xiuxia; Wan, Xianwei; Bo-qi, Weng; Qin, Huang

doi:10.1016/j.biortech.2010.07.013

Cited by 57 publications

(24 citation statements)

References 19 publications

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“…Dried water hyacinth displayed significant K loss when placed in biogas fluid in contrast to the constant P accumulation [1,2]. In the present experiment, however, the material was shown to be attractive to both elements, implying the involvement of different adsorption mechanisms.…”

Section: Uds and Urine P Retention In Dwhcontrasting

confidence: 61%

“…Five plastic sieves, each had an inside dimension of 6 cm × 338 cm 2 and contained ~80 g of DWH, were stacked on top of one another for urine absorption by the DWH. A plastic tray, which contained ~40 g of the material, was put at the bottom of the stacked sieves to absorb excess moisture.…”

Section: Urine Phosphorus Recovery In Dwhmentioning

confidence: 99%

“…This innovation can be expected to be useful in the recycling of some dissolved hazardous materials. Meanwhile, the results helps explain why floating water hyacinth straws absorb more phosphorus than the fully hydrated counterparts [2]. Physical adsorption and surface precipitation are regarded as possible mechanisms with respect to the observed phenomena and by reference to metal biosorption in wheat straw and grass [18].…”

Section: Ds Retrieval In Dwhmentioning

confidence: 99%

“…Dried petioles of water hyacinth (Eichhornia crassipes) were found useful for phosphorus removal from highly eutrophic water bodies [1,2]. In nature, phosphorus in soil is taken up by plants and then moves through the food chain.…”

Section: Introductionmentioning

confidence: 99%

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Field Utilization of Dried Water Hyacinth for Phosphorous Recovery from Source-Separated Human Urine

Bo-qi¹,

Zhou²,

Zheng³

et al. 2012

JEP

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This research demonstrated the feasibility of converting source-separated human urine into a solid fertilizer by means of continuous absorption and solar thermal evaporation using dried water hyacinth as adsorbent. In a preliminary experiment, the dried petioles of water hyacinth (DWH) absorbed urine in a mean rate of 18.78 ml·g −1 within 7 d, retrieving about 3.46% urine dissolved solids (UDS). In an advanced experiment, the DWH's capacity of urine absorption declined from an initial 2.73 L·kg, with a requirement of material change in about 25 effective days and an average ratio of 25 (L) to 1 (kg). Phosphorus (P 2 O 5 ) concentration in the adsorbent increased from 0.46% (material baseline) to 3.14% (end product), suggesting a satisfactory recovery of the element. In field application, the urine was discharged, not in wet weather, onto the DWH via a tube connected to a waterless urinal. There are several ways to use the UDS-DWH as P(K)-rich fertilizer, e.g., making soluble fertilizer for foliage spraying to encourage prolific flowering and fruiting. Apparently, utilization of water hyacinth waste to recover dissolved plant nutrient elements from source-separated urine will benefit the environment in a wide range of perspectives. The herein innovative use of water hyacinth is also expected to be useful in the recycling of certain dissolved hazardous materials.

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Section: Uds and Urine P Retention In Dwhcontrasting

confidence: 61%

Section: Urine Phosphorus Recovery In Dwhmentioning

confidence: 99%

Section: Ds Retrieval In Dwhmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Field Utilization of Dried Water Hyacinth for Phosphorous Recovery from Source-Separated Human Urine

Bo-qi¹,

Zhou²,

Zheng³

et al. 2012

JEP

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“…It has become a serious weed in freshwater habitats in rivers, lakes and reservoirs in both tropical and warm temperate areas worldwide. Owing to its strong ability to assimilate nitrogen and phosphorus (Reddy, Agami, & Tucker, 1989; and accumulate heavy metals (Deng, Ye, & Wong, 2004;Caldelas, Iglesia-Turino, Araus, Bort, & Febrero, 2009), it is useful in wastewater phytoremediation (Casabianca, Laugier, & Posada, 1995;Lu, Fu, & Yin, 2008;Chen, Chen, Wan, Weng, & Huang, 2010). In this study, we analysed the structure of the rhizosphere microbial communities associated with E. crassipes cultured under different forms of nitrogen (1.8 mM ammonium, 1.8 mM nitrate and nitrogen deficiency).…”

mentioning

confidence: 99%

Effects of different forms of nitrogen on rhizosphere microbial community structure of Eichhornia crassipes (Pontederiaceae)

Zheng

2016

RBT

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Abstract:Rhizosphere microbial communities are important for phytoremediation, plant nutrition, health and metabolism. Many factors, including plant species, pH and nutritional factors influence rhizosphere microbiology. In this study, we analysed the effects of different forms of nitrogen on the structures of rhizosphere microbial communities of E. crassipes. Using a conventional culture method with special media, bacteria, actinobacteria and molds were cultured. We found that the numbers of bacteria were largely similar across the three culture conditions, while the numbers of actinobacteria and molds from the rhizosphere of E. crassipes cultured in NH 4 Cl solution were two orders of magnitude higher than those from the rhizospheres of plants cultured in distilled water and KNO 3 solution. Using a culture-independent method of polymerase chain reaction-denaturing gradient gel electrophoresis (PCR-DGGE) of 16S rDNA, we found that the form of nitrogen could influence the components of the rhizosphere microbial community. Pseudoxanthomonas, Enterobacter and Citrobacter were present in all of the samples cultured under the three different experimental conditions. The genus Reyranella was found only in samples cultured in KNO 3 solution; Acinetobacter and Streptomyces were unique to samples cultured in NH 4 Cl solution, and Pseudomonas, Pseudacidovorax and Methylosinus were found only in samples cultured in distilled water. Pseudoxanthomonas and Acidovorax were the dominant genera in the rhizosphere microbial community of E. crassipes cultured in KNO 3 solution, while Novosphingobium was the dominant genus in the sample cultured in a nitrogen-deficient medium. Our results provide a theoretical foundation for using E. crassipes as a phytoremediation plant and controlling the widespread distribution of E. crassipes around the world using principles of nutrient metabolism. Rev. Biol. Trop. 64 (1): 213-220. Epub 2016 March 01.Key words: Eichhornia crassipes, nitrogen, rhizosphere microbial community, PCR-DGGE.Eutrophication of water bodies is becoming an increasingly severe problem with current levels of industrial development and the increasing population worldwide. Phytoremediation is an effective solution to this problem. In phytoremediation of water, aquatic plants remediate eutrophic water, a process that relies not only on the absorption and utilisation of nutrients by plants (Fu et al., 2014) but also on their relationship with rhizosphere microbiology (Lu, Hu, Liang, & Zhu, 2010;Tanaka et al., 2012). Rhizosphere microbial communities can decompose organic substances and denitrify nitrogenous compounds by the processes of ammoxidation, nitrification and denitrification and transform phosphorus compounds (Stottmeister et al., 2003;Lu et al., 2010). In this way, they play an important role in plant nutrition, plant metabolism, phytoremediation and plant health (Elsgaard, Petersen, & Debosz, 2001;Filip, 2002). Many environmental factors can influence the structure of the rhizosphere microbial community, thereby af...

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Eichhornia crassipes as biosorbent for industrial wastewater treatment: Equilibrium and kinetic studies

et al. 2021

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Adsorption is an economical and widely used technique for removing dye from wastewater, especially for non-biodegradable pollutants. In this study, the effectiveness of water hyacinth (WH) as an adsorbent for the removal of methylene blue (MB) was conducted in a batch process. Scanning electron microscopy (SEM) and Fourier transform infrared spectroscopy (FTIR) were used to characterize WH. The influence of operational parameters such as dye concentration, pH, WH dose, and contact time was studied to determine the most favourable experimental conditions. Dubinin Radushkevich,

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Water hyacinth (Eichhornia crassipes) waste as an adsorbent for phosphorus removal from swine wastewater

Cited by 57 publications

References 19 publications

Field Utilization of Dried Water Hyacinth for Phosphorous Recovery from Source-Separated Human Urine

Field Utilization of Dried Water Hyacinth for Phosphorous Recovery from Source-Separated Human Urine

Effects of different forms of nitrogen on rhizosphere microbial community structure of Eichhornia crassipes (Pontederiaceae)

Eichhornia crassipes as biosorbent for industrial wastewater treatment: Equilibrium and kinetic studies

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