scholarly journals The distribution pattern and ecological restoration technology of aquatic plants in eutrophic water landscape belt

2021 ◽  
Author(s):  
Sirong Wang
Keyword(s):  
Distribution Pattern ◽  
Ecological Restoration ◽  
Plant Communities ◽  
Aquatic Plants ◽  
Water Hyacinth ◽  
Aquatic Plant ◽  
Acorus Calamus ◽  
Eutrophic Water ◽  
Α Diversity ◽  
Water Landscape

Abstract Taking the eutrophic Taige canal and Caoqiao River in the upper reaches of North Taihu Lake as the experimental objects, 12 monitoring points were set up and the data were recorded. The distribution pattern of aquatic plants in the water landscape belt was studied by variance/mean ratio, aggregation intensity index, negative binomial parameter, Cassie index and α – diversity index. Based on the principle of aquatic plants repairing eutrophic water, the suitable water environment was selected. The effect of ecological restoration was studied by photometry. The results showed that: the main aquatic plant communities in this area evolved from submerged type to floating leaf type and emergent type, which showed that the vertical distribution pattern of aquatic plant communities was greatly affected by hydrology; the distribution pattern of aquatic plant diversity showed a good single hump type in the vertical direction and a single hump type in the horizontal direction; the results of ecological restoration showed that: the average removal rates of TN and TP by mixing the three plants were 86.76% and 93.89%, respectively. Among them, the best combination of TN removal was water hyacinth (Eichhornia crassipes) + lytchus (Lythrum salicaria) + calamus (Acorus calamus), and the best combination of TP removal was water hyacinth + lytchus + hibiscus (Nelumbonucifera).

Application of Three Step-Biological Pond with the Use of Aquatic Plant for Post Treatment of Petroleum Wastewater in Vietnam

1991 ◽  
Vol 23 (7-9) ◽  
pp. 1503-1507 ◽  
Author(s):  
L. M. Triet ◽  
N. T. Viet ◽  
T. V. Thinh ◽  
H. D. Cuong ◽  
J. C. L. van Buuren
Keyword(s):  
Dissolved Oxygen ◽  
Activated Sludge ◽  
Residence Time ◽  
Aquatic Plants ◽  
Water Hyacinth ◽  
Aquatic Plant ◽  
Post Treatment ◽  
Cod Removal ◽  
Sludge Treatment ◽  
Purification Efficiency

The effluent from activated sludge treatment of petroleum wastewater was treated with the aid of a ponding system using aquatic plants (Water Hyacinth, Chlorella, Reed). A good result was obtained in this study. Pilot pond system shows that the purification efficiency depends on the residence time of about 14 days. The petroleum removal waa 97-98 %, the COD removal was from 88-93 %. The dissolved oxygen amount (with Chlorella) increased from 0.7 mg/l to 9.8 mg/l and the pH increased from 6.9 to 8-8.6. The application of 3 step biological pond with the use of Water Hyacinth, Chlorella, Reeds for post treatment of petroleum wastewater is appropriate in Vietnam.

Comparison of the Aquatic Plants' Purification Effects on Eutrophic Water from Chaohu Lake Area

2013 ◽  
Vol 368-370 ◽  
pp. 282-285 ◽  
Author(s):  
Feng Quan Ji ◽  
Wei Wang
Keyword(s):  
Aquatic Plants ◽  
Water Hyacinth ◽  
Early Stage ◽  
River System ◽  
High Rate ◽  
Control Group ◽  
Chaohu Lake ◽  
Lake Area ◽  
Removal Ratio ◽  
Eutrophic Water

This research has examined the aquatic plants ability of removing N and P with the experiment materials of the aquatic plants in the river system in Chaohu Region. Results revealed that Ludwigia peploides subsp, Vallisneria spiralis, Water Hyacinth and Cyperus papyrus contribute to removing TN in water to the effect which correlates the growth rate of the plants. 1) Particularly, Water Hyacinth, which grows the fastest among the sample plants, effects with the highest efficiency in removing TN, with the removal ratio of about 77%, 6.8 times that of the control group; 2) 4 aquatic plants function with higher efficiency in removing NH3-N than TN, and the plants in Test 8d remove NH3-N up to the removing ratio of 65-92% or so; 3) 4 aquatic plants tend to degrade NO3--N at the ratio similar to TN, and the absorptive effect of Water Hyacinth tops among the 4 plants, while under the same conditions, the papyrus remains the lowest with the absorptive ratio of only 31.7%; 4) and the regulation that the experiment plants remove the TP in water differs from TP degradation, for, in the early stage of the experiment, plants in Test 20d remove phosphorus at the high rate; however, in the later stage of the experiment, the concentration of phosphorus in water remains stable. At the end of the experiment, the phosphorus removal ratio reached 47.2%, while the ratio that the papyrus removed the phosphorus was only 21.5%. These data suggest that the aquatic plants in Chaohu Region can exert efficient remediation effect upon the eutrophic water.

scholarly journals Management of aquatic plants and their contributions to fisheries production in Ikere-Gorge, Iseyin, Oyo State, Nigeria

Agro-Science ◽  
2020 ◽  
Vol 19 (4) ◽  
pp. 18-23
Author(s):  
S.O. Ajagbe
Keyword(s):  
Aquatic Plants ◽  
Aquatic Plant ◽  
Ecological Status ◽  
Freshwater Ecosystems ◽  
Individual Species ◽  
Salvinia Molesta ◽  
Aquatic Biodiversity ◽  
Fishing Villages ◽  
Α Diversity

Aquatic plants are important in freshwater ecosystems. They provide food, shelter, spawning and nursery grounds for fish. They are usually found  at the littoral parts of freshwater ecosystems. The abundance, distribution and diversity of aquatic plant of Ikere-gorge, Iseyin, Nigeria were  examined between January 2017 and December 2018. There are twelve fishing villages in Ikere-gorge and four villages were randomly selected. Aquatic plants were sampled and collected with the help of hired fishermen. The collected aquatic plant samples were identified at the Forest  Herbarium of the Forestry Research Institute of Nigeria with appropriate keys. This work identified 13 families and 23 species of aquatic plants.  Cyperaceae family recorded the highest (4) number of individual species while Salvinia molesta had the highest abundance in all the sampling sites. The ecological classification of the aquatic plants showed that 14 species are emergent; 7 species floating and 3 species submerged. Site C had the most abundance (9220) of aquatic plants, followed by site D (8490), site B (8130) and site A (7940). The gamma (γ) and beta (β) diversities were 23 and 0.01 respectively. The alpha (α) diversity included Dominance (0.08), Simpson (0.92) and Shannon-Wiener (2.72) respectively. These results show that Salvinia molesta and Najas guadalupensis are the most and least abundant aquatic plants in Ikere-gorge respectively; which may be due to  their ecological status. Moreover, management of aquatic plants is an integral part of fisheries management for sustainable fisheries. Therefore, their management is essential for the maintenance of aquatic biodiversity. Key words: aquatic plants, diversity, emergent, floating, submerged

Distribution of unusual polyamines in aquatic plants and gramineous seeds

1994 ◽  
Vol 72 (8) ◽  
pp. 1114-1120 ◽  
Author(s):  
Koei Hamana ◽  
Shigeru Matsuzaki ◽  
Masaru Niitsu ◽  
Keijiro Samejima
Keyword(s):  
Key Words ◽  
Aquatic Plants ◽  
Water Hyacinth ◽  
Eichhornia Crassipes ◽  
Aquatic Plant ◽  
Nelumbo Nucifera ◽  
Water Lily ◽  
Spirodela Polyrhiza ◽  
A Minor ◽  
Seedling Leaf

We tested several plants for the occurrence of unusual polyamines such as homospermidine, aminopropylhomospermidine, norspermidine, norspermine, thermospermine, and caldopentamine. The leaf and root of aquatic plants ubiquitously contained homospermidine in addition to usual polyamines such as putrescine, spermidine, spermine, and cadaverine. Homospermidine was widely distributed in the seed, seedling, leaf, and root of gramineous plants such as rice, millet, oat, rye, wheat, barley, corn, sorghum, and timothy as a minor polyamine. Aminopropylhomospermidine was found in the two aquatic plants, the water lily Nymphaca tetragona and the lotus Nelumbo nucifera as a major polyamine, and in the gramineous seeds as a minor polyamine. Norspermidine, norspermine, homospermine, and caldopentamine were detected in two floating aquatic plants, the duckweed Spirodela polyrhiza and the water hyacinth Eichhornia crassipes. Thermospermine was sporadically detected in some aquatic plants and gramineous seeds. Key words: Gramineae, aquatic plant, polyamine, homospermidine, caldopentamine.

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 BUDIDAYA TERPADU LELE DUMBO DENGAN TANAMAN ECENG GONDOK (Eichornia crassipes), KANGKUNG AIR (Ipomea aquatica) DAN KAPU-KAPU (Pistia stratiotes)

2002 ◽  
Vol 4 (2) ◽  
pp. 30
Author(s):  
Bambang Triyatmo ◽  
Namastra Probosunu
Keyword(s):  
Weight Gain ◽  
Survival Rate ◽  
Aquatic Plants ◽  
Water Hyacinth ◽  
Aquatic Plant ◽  
Clarias Gariepinus ◽  
Survival Rates ◽  
Pistia Stratiotes ◽  
Plant Water ◽  
Eichornia Crassipes

Catfish (Clarias gariepinus) was cultured with an aquatic plant, water hyacinth/eceng gondok  (Eichornia crassipes), kangkung air (Ipomea aquatica) or kapu-kapu (Pistia stratiotes) in concrete ponds, for 3 months. Catfish cultured without aquatic plant was used as a control. The experiment was carried out to evaluate the survival rate as well as the growth of fish and aquatic plants.The survival rates of catfish cultured with I. aquatica, E. crassipes, and P. stratiotes were 76, 87, and 98%, respectively. In addition the survival rate of catfish cultured without any aquatic plant was 93%. The weight gain of catfish was 14,1-16,2 kg per pond. Whereas, the total weight gains of aquatic plant were 37,0,  27,7 and 7,7 kg per pond for E. crassipes, P. stratiotes, and I. aquatica,. Respectively. Dissolved oxygen, and the concentrations of NH3, NH4+ and PO43- in water with aquatic plants were higher than that of in water without aquatic plant. However, the concentration of CO2 was higher in water with aquatic plant.

Biodiversity of Bucephalandra Motleyana Schott (Schott, 1858) based on commercial name in Jabodetabek: Ornamental Aquatic Biota Market.

2020 ◽  
Vol 8 (1) ◽  
pp. 1
Author(s):  
Media Fitri Isma Nugraha ◽  
Ina Erlinawati ◽  
Deni Sahroni ◽  
Wening Enggarini ◽  
Rossa Yunita ◽  
...  
Keyword(s):  
Aquatic Plants ◽  
Aquatic Plant ◽  
The Other ◽  
Research Centre ◽  
Aquatic Biota ◽  
Commercial Market

Bucephalandra sp. is a genus of aquatic plants endemic to Borneo Island, representing the Araceae family. Bucephalandra sp. is famous for its ornamental aquatic plants which are usually used in aquascaping. These aquatic plants come at fantastic prices, e.g. ±300 euros in European ornamental aquatic markets and Rp 50,000 – 700,000 in Indonesian aquatic plant markets. We collected 195 types of Bucephalandra from an ornamental aquatic plant market in Jakarta. In the market, they are sold under its commercial name. Therefore, the aim of this study is to collect and identify the species of all Bucephalandra types in the aquatic plant commercial market. These species that we identified are based on botanical taxonomist identification in the Herbarium Bogoriense Department Botany – Research Centre for Biology – Indonesian Institute of Science (LIPI) Cibinong. The result of this study is from our collection (195 types) of which 102 types are Bucephalandra Motleyana Schott species and 90 types are the other species of Bucephalandra.

Green Route for the Removal of Pb from Aquatic Environment

2020 ◽  
Vol 23 (7) ◽  
pp. 587-598 ◽  
Author(s):  
Ahmed Refaat ◽  
Hanan Elhaes ◽  
Nabila S. Ammar ◽  
Hanan S. Ibrahim ◽  
Medhat Ibrahim
Keyword(s):  
Molecular Modeling ◽  
Sodium Alginate ◽  
Water Hyacinth ◽  
Aquatic Plant ◽  
Cost Effective ◽  
Important Process ◽  
Green Route ◽  
Homogeneous Structures ◽  
Different Sources ◽  
Water Hyacinth Root

Aim and Objective: Wastewater treatment/remediation is a very important process that has a great environmental and economic impact. Therefore, it is crucial to innovate different methods to remove pollutants of different sources from wastewater. This work was conducted in order to study the removal of lead (Pb+2) from wastewater using microspheres of composites of sodium alginate, cellulose and chitosan, as well as using a cost-effective green route through composites of sodium alginate and dried water hyacinth. Materials and Methods: Molecular modeling at B3LYP/6-31g(d,p) was utilized to study sodium alginate, cellulose and chitosan. Sodium alginate was cross-linked with calcium chloride to form microspheres, then both sodium alginate/cellulose and sodium alginate/chitosan were also crosslinked as 50/50 to form microspheres. The roots of the aquatic plant water hyacinth in dry form were added to the cross-linked sodium alginate for up to 70%. SEM and FTIR were employed to study the surface of the prepared microspheres and their structures respectively. Atomic absorption spectroscopy was used to study the levels of Pb. Results: Molecular modeling indicated that the blending of such structures enhances their ability to bind with surrounding molecules owing to their ability to form hydrogen bonds. SEM results indicated that homogeneous structures of cellulose and chitosan are deformed when blended with sodium alginate, and FTIR confirmed the proper formation of the desired blends. Microspheres from sodium alginate showed the ability to remove Pb+2 from wastewater. SEM indicated further deformation in the morphology with the roughness of sodium alginate/water hyacinth microspheres, while FTIR confirmed the uniform matrices of the microspheres. The removal of Pb+2 was enhanced because of the addition of dried water hyacinth's roots. Conclusion: Modeling, experimental and kinetic data highlight sodium alginate/water hyacinth root as a green route to remediate Pb+2 from wastewater.

scholarly journals Anaerobic Degradation of Environmentally Hazardous Aquatic Plant Pistia stratiotes and Soluble Cu(II) Detoxification by Methanogenic Granular Microbial Preparation

Energies ◽  
2021 ◽  
Vol 14 (13) ◽  
pp. 3849
Author(s):  
Olesia Havryliuk ◽  
Vira Hovorukha ◽  
Oleksandr Savitsky ◽  
Volodymyr Trilis ◽  
Antonina Kalinichenko ◽  
...  
Keyword(s):  
Aquatic Plants ◽  
Anaerobic Degradation ◽  
Aquatic Plant ◽  
High Efficiency ◽  
Pistia Stratiotes ◽  
Copper Compounds ◽  
Mechanical Removal ◽  
Microbial Preparation ◽  
Copper Contaminated ◽  
Potential Parameters

The aquatic plant Pistia stratiotes L. is environmentally hazardous and requires effective methods for its utilization. The harmfulness of these plants is determined by their excessive growth in water bodies and degradation of local aquatic ecosystems. Mechanical removal of these plants is widespread but requires fairly resource-intensive technology. However, these aquatic plants are polymer-containing substrates and have a great potential for conversion into bioenergy. The aim of the work was to determine the main patterns of Pistia stratiotes L. degradation via granular microbial preparation (GMP) to obtain biomethane gas while simultaneously detoxifying toxic copper compounds. The composition of the gas phase was determined via gas chromatography. The pH and redox potential parameters were determined potentiometrically, and Cu(II) concentration photocolorimetrically. Applying the preparation, high efficiency of biomethane fermentation of aquatic plants and Cu(II) detoxification were achieved. Biomethane yield reached 68.0 ± 11.1 L/kg VS of Pistia stratiotes L. biomass. The plants’ weight was decreased by 9 times. The Cu(II) was completely removed after 3 and 10 days of fermentation from initial concentrations of 100 ppm and 200 ppm, respectively. The result confirms the possibility of using the GMP to obtain biomethane from environmentally hazardous substrates and detoxify copper-contaminated fluids.

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