Fate of 15 NO3 − and 15 NH4 + in the Treatment of Eutrophic Water Using the Floating Macrophyte, Eichhornia crassipes

2012 ◽  
Vol 41 (5) ◽  
pp. 1653-1660 ◽  
Author(s):  
Yan Gao ◽  
Neng Yi ◽  
Zhiyong Zhang ◽  
Haiqin Liu ◽  
Shaohua Yan
Keyword(s):  
Eichhornia Crassipes ◽  
Eutrophic Water ◽  
Floating Macrophyte

scholarly journals Growth and phenotypic plasticity variability of Eichhornia crassipes in response to different eutrophic water in karst wetland

2021 ◽  
Vol 33 (1) ◽  
pp. 123-137
Author(s):  
Teng Qiumei ◽  
◽  
Sun Yingjie ◽  
Shen Yuyi ◽  
Zhang Denan ◽  
...  
Keyword(s):  
Phenotypic Plasticity ◽  
Eichhornia Crassipes ◽  
Eutrophic Water

Effect of Eichhornia crassipes on production of N2 by denitrification in eutrophic water

2014 ◽  
Vol 68 ◽  
pp. 14-24 ◽  
Author(s):  
Yan Gao ◽  
Neng Yi ◽  
Yan Wang ◽  
Tao Ma ◽  
Qing Zhou ◽  
...  
Keyword(s):  
Eichhornia Crassipes ◽  
Eutrophic Water

Purification Efficiency of Compound Aquatic Plants for the Eutrophic Water Body

2014 ◽  
Vol 675-677 ◽  
pp. 430-433
Author(s):  
Hong Wang ◽  
Xin Wang ◽  
Shi Man Wang ◽  
Xian Chao Ji
Keyword(s):  
Removal Efficiency ◽  
Aquatic Plants ◽  
Water Hyacinth ◽  
Eichhornia Crassipes ◽  
Single Species ◽  
Ammonium Nitrogen ◽  
Ceratophyllum Demersum ◽  
Nitrogen And Phosphorus ◽  
Purification Efficiency ◽  
Eutrophic Water

In order to study combination effect of aquatic plants for the purification of eutrophic wastewater, research was carried out in greenhouse with water hyacinth (Eichhornia crassipes), hornwort (Ceratophyllum demersumL) an water milfoil (Myriophyllum verticillatum L). In the treatment of water hyacinth + water milfoil , the removal efficiency of ammonium nitrogen (NH4+-N), nitrite nitrogen (NO3--N) , total nitrogen (TN), total phosphorus (TP) and COD was 74.7%, 61.7%, 65.6%, 73.8% and 50.8% respectively. And that of water hyacinth + hornwort was 79.0%, 52.6%, 67.5%, 46.2% and 56.9%. The combination of different aquatic plants have better removal efficiency than single species. Water milfoil showed good removal ability for the eutrophication pollutants, such as nitrogen and phosphorus, while hornwort was good at the purification of COD.

scholarly journals Photochemical Studies of Eichhornia crassipes (Water Hyacinth)

2014 ◽  
Vol 30 ◽  
pp. 214-222
Author(s):  
Amrita Ratan ◽  
Vishwa Nath Verma
Keyword(s):  
Heavy Metals ◽  
Trace Elements ◽  
Water Hyacinth ◽  
Eichhornia Crassipes ◽  
Essential Trace Elements ◽  
Floating Macrophyte ◽  
Lead Magnesium ◽  
High Level ◽  
First Time ◽  
Different Parts

Eichhornia crassipes is a floating macrophyte. It is capable of assimilating large quantities of toxic metals, some of which are essential for plant growth. Water Hyacinth grows rapidly in water with a high level of nutrients like nitrogen and phosphorous. The plants have been shown to absorb trace elements such as Silver (Ag), Lead (Pb), Cadmium (Cd) and Copper (Cu) reported by Lu et al [1]. The purpose of this study is to determine the distribution of heavy metals in different parts of the Water Hyacinth . Such a detail study has been taken for the first time. It is expected that the metal distribution within the plant species would be a representation of the concentration and distribution of the water in which it is found. Plants have the ability to accumulate non-essential and essential trace elements and this ability could be harnessed to remove pollutant metals from the environment. Aluminum, cadmium, calcium, copper, iron, lead, magnesium and zinc have been found in different amounts in roots, stems, leaves and flowers.

scholarly journals Sulfate-Reducing Bacteria in Floating Macrophyte Rhizospheres from an Amazonian Floodplain Lake in Bolivia and Their Association with Hg Methylation

2005 ◽  
Vol 71 (11) ◽  
pp. 7531-7535 ◽  
Author(s):  
Darío Achá ◽  
Volga Iñiguez ◽  
Marc Roulet ◽  
Jean Remy Davée Guimarães ◽  
Ruddy Luna ◽  
...  
Keyword(s):  
Eichhornia Crassipes ◽  
Sodium Molybdate ◽  
Sulfate Reducing Bacteria ◽  
Mercury Methylation ◽  
Floodplain Lake ◽  
Sulfate Reducing ◽  
Macrophyte Species ◽  
Floating Macrophyte ◽  
Reducing Bacteria

ABSTRACT Five subgroups of sulfate-reducing bacteria (SRB) were detected by PCR in three macrophyte rhizospheres (Polygonum densiflorum, Hymenachne donacifolia, and Ludwigia helminthorriza) and three subgroups in Eichhornia crassipes from La Granja, a floodplain lake from the upper Madeira basin. The SRB community varied according to the macrophyte species but with different degrees of association with their roots. The rhizosphere of the C4 plant Polygonum densiflorum had higher frequencies of SRB subgroups as well as higher mercury methylation potentials (27.5 to 36.1%) and carbon (16.06 ± 5.40%), nitrogen (2.03 ± 0.64%), Hg (94.50 ± 6.86 ng Hg g−1), and methylmercury (8.25 ± 1.45 ng Hg g−1) contents than the rhizosphere of the C3 plant Eichhornia crassipes. Mercury methylation in Polygonum densiflorum and Eichhornia crassipes was reduced when SRB metabolism was inhibited by sodium molybdate.

scholarly journals Utilization of macrophyte biofilter in effluent from aquaculture: I. Floating plant

2002 ◽  
Vol 62 (4a) ◽  
pp. 713-723 ◽  
Author(s):  
L. H. SIPAÚBA-TAVARES ◽  
E. G. P. FÁVERO ◽  
F. M. S. BRAGA
Keyword(s):  
Eichhornia Crassipes ◽  
Low Cost ◽  
Experimental Period ◽  
Dominant Group ◽  
Ph Values ◽  
Floating Macrophyte ◽  
High Production ◽  
Dry Seasons ◽  
Production Period ◽  
Floating Plant

The objective of this work was to manufacture a low-cost biofilter, made of floating macrophyte (Eichhornia crassipes). Limnological studies were conducted 7 days after the macrophytes were placed in the biofilter, and continued over a period of 30 consecutive days. During rainy and dry seasons, and high production period, samples were taken three times a week. The lowest levels of nitrogen compounds were observed in the July/August period, which corresponded to lower fish production and low supply rattion in the culture ponds. During the experimental period, pH values ranged from acid to alkaline and did not oscillate with higher average values during April/May. Alkalinity and bicarbonate dominance in the medium were directly affected by pH. With respect to associated micro-fauna, among phyto-plankton Chlorophyta was the dominant group and among zooplankton, Rotifera. It is recommended that during production peaks, the aquatic plants should be replaced by small buds every 10 days.

Involvement of a unique chemodosimeter in selective estimation of noxious cyanide in common water hyacinth (Eichhornia crassipes): An environmental refinement

2021 ◽  
Author(s):  
Shrabani Saha ◽  
Priyotosh Ghosh ◽  
Paritosh Mondal ◽  
Ansuman Chattopadhyay ◽  
Prithidipa Sahoo
Keyword(s):  
Water Hyacinth ◽  
Eichhornia Crassipes ◽  
Selective Detection ◽  
Detection And Estimation ◽  
Floating Macrophyte

A naphthaldehyde-pyridoxal conjugated chemodosimeter (NPLC) was developed and employed for the sensitive and selective detection and estimation of cyanide in common water hyacinth (Eichhornia crassipes), a free floating macrophyte used...

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