scholarly journals Distribution, Impacts and Management Option for Water Hyacinth (Eichhnornia Crassipes [Mart.] Solms) in Ethiopia: A Review

2019 ◽  
Vol 10 ◽  
pp. 1764-1771
Author(s):  
Yigerm Mengist ◽  
Yohannes Moges
Keyword(s):  
Water Resource ◽  
Water Hyacinth ◽  
Socioeconomic Development ◽  
Negative Impact ◽  
Integrated Management ◽  
Wide Distribution ◽  
Water Bodies ◽  
Aquatic Weed ◽  
Management Option ◽  
Local Stakeholder

Water hyacinth (Eichhprnia crassipes) is the most dangerous and worst invasive aquatic weed in the worldwide including Ethiopia, and negatively affecting millions of water resources, fisheries, transportation and social structure. Water hyacinth was introduced in the water bodies of the Rift Valley in 68years ago and currently, the weed is distributed Lake Tana, Lake Abaya, Lake Koka, Koka Dam. The wide distribution and abundance of water hyacinth has led to decreased water availability and sustainable water biodiversity in Ethiopian lakes. However, the spread of water hyacinth is threatening not only water biodiversity but also socioeconomic development and human wellbeing. Water hyacinth in water bodies and nearby areas the local stakeholder has its negative impact on environmental problem and it’s influenced aquatics biodiversity. This review paper aimed to investigate the distribution, impacts and its integrated management option against water hyacinth in Ethiopia. Therefore, based on the review it can be concluded that human intervention is considered as the current problem of water resource in the country and further study is needed to sustain the water resource are needed to keep water hyacinth at unproblematic levels.

Water Hyacinth

2015 ◽  
pp. 343-361
Author(s):  
Never Mujere
Keyword(s):  
Fresh Water ◽  
Natural Enemies ◽  
Water Hyacinth ◽  
Amazon Basin ◽  
Cost Effective ◽  
Environmental Problems ◽  
Water Bodies ◽  
Aquatic Weed ◽  
Tropical Waters ◽  
Agricultural Household

This paper is a review of literature of water hyacinth (Eichhornia crassipes); what it is, why it is of scientific importance, problems it causes, how it can be controlled, and how it can be a source of livelihoods. The review has shown that water hyacinth is native to the Amazon Basin and one of the world's most noxious aquatic weed. Lack of natural enemies together with nutrient enriched water bodies facilitate the spread of water hyacinth in temperate, tropical and sub-tropical waters. The weed causes a variety of socio-economic and environmental problems when its rapid mat-like proliferation covers areas of fresh water. With regards to its control, the mechanical method is the most cost-effective, followed by the biological, manual and chemical methods. Regardless of its problems, water hyacinth has been found to be useful for industrial, agricultural, household and environmental purposes.

scholarly journals Potential of Water Hyacinth (Eichhornia crassipes) as Compost and its Effect on Soil and Plant Properties: A Review

2021 ◽  
Author(s):  
S.L. Rasmiya Begum ◽  
S.M.M.S. Himaya ◽  
S.M.M.S. Afreen
Keyword(s):  
Soil Properties ◽  
Water Hyacinth ◽  
Negative Impact ◽  
Growth Parameters ◽  
Germination Percentage ◽  
Biological Properties ◽  
Vital Role ◽  
Heavy Metal Accumulation ◽  
Aquatic Weed ◽  
Area Index

Water hyacinth, the devastating weed grows in water bodies either naturally or as a result of human interference, is considered as threat to environment due to its negative effects on aquatic ecosystems. To alleviate its negative impact utilization of those become as better mean in recent decades. As such, water hyacinth is known to has potential to be utilized as nutrient source via composting, all most all types of composting techniques are applicable in preparation of compost from water hyacinth. Being an organic source, water hyacinth helps build up soil organic matter, in turn play vital role in the enrichment of the soil physical, chemical and biological properties. Aggregation of soil particles, porosity, density, water holding capacity, nutrient availability, cation exchange capacity, pH, soil microorganism are the soil properties reported to improve with water hyacinth compost application. Moreover, water hyacinth compost seems to be far better than the animal manures in improvement of soil properties. As a result, water hyacinth compost shows magnificent effect of plant agronomic growth parameters such as germination percentage, number of leaves, leaf area index, plant height, length of shoot and root, root: shoot ratio, biomass content as well as yield parameters. However, utilization of water hyacinth has few challenges like difficulties in harvesting, chance for heavy metal accumulation, hardness during decomposition, less awareness. Properly managed water hyacinth compost would serve as an alternative for inorganic nutrient sources in future thus indirectly the threat caused by this aquatic weed on environmental would become minimum.

Ecological aspects of modernization of alcohol industry enterprises at the present stage of development

2020 ◽  
Vol 5 (3) ◽  
pp. 179-184
Author(s):  
Marianna Havryshko ◽  
◽  
Olena Popovych ◽  
Halyna Yaremko ◽  
◽  
...  
Keyword(s):  
Wastewater Treatment ◽  
Food Industry ◽  
Ph Value ◽  
Negative Impact ◽  
Water Bodies ◽  
Raw Material ◽  
Present Stage ◽  
Alcohol Industry ◽  
Stage Of Development ◽  
World Industry

At the present stage of development, the entire world industry has faced the problem of rational use of renewable natural resources, in particular the most efficient ways of wastewater treatment and the use of accumulated waste in the production process as a secondary raw material. In particular, the alcohol industry, as one of the components of food, medical, chemical and various industries,leads to the formation of huge amounts of waste, including wastewater. The food industry, like any other industry, has a negative impact on the environment. Water bodies are the most affected by the food industry. Almost the first place in terms of water consumption per unit of production is the production of alcohol. Consumption of large amounts of water leads to the formation of wastewater, which is highly polluted and adversely affects the environment. Due to the high chemical and biological consumption of oxygen, specific color and odor, suspended solids, low pH value, the purification of such waste in the filtration fields and discharge into water bodies is not possible. The purpose of our work is: 1) conducting the analysis of the alcohol industry potential in Ukraine in recent years, and methods of waste disposal as a potential source for the development of bioenergy. 2) environmental aspects of the alcohol industry modernization at present stage of development and implementation of modern wastewater treatment technologies.

ECOLOGICAL AND TOXICOLOGICAL ASSESSMENT OF HAZARD, POSED BY WATER CONTAMINATION OF WATER BODIES WITH POLYVINYL NITRATE

2018 ◽  
pp. 12-19 ◽  
Author(s):  
A. A. Maslennikov ◽  
S. A. Demidova ◽  
A. V. Ryabova
Keyword(s):  
Biochemical Oxygen Demand ◽  
Water Contamination ◽  
Chronic Toxicity ◽  
Negative Impact ◽  
Oxygen Demand ◽  
Water Bodies ◽  
Organoleptic Properties ◽  
Toxicological Assessment ◽  
Threshold Levels ◽  
Polyvinyl Nitrate

Water containing polyvinyl nitrate was experimentally assessed on the basis of organoleptic, general sanitary and toxicological indicators of harmfulness. It was established that that the compound did not change water organoleptic properties but produced a negative impact on viability of saprophytic microflora , nitrification processes and biochemical oxygen demand. Besides, in tests on animals. the substance caused acute, sub-acute and chronic toxicity. Based on those signs of harmfulness, threshold levels of exposure were established. Data obtained were taken into account for substantiation of MAC (Maximum allowable concentration) of polyvinyl nitrate in water bodies.

Extraction, Purification and Characterization of Nanocrystalline Cellulose from Eichhornia crassipes (Mart.) Solms: A Common Aquatic Weed Water Hyacinth

2021 ◽  
pp. 1-12
Author(s):  
Kannan Kilavan Packiam ◽  
Bharani Murugesan ◽  
Pavithra Mettupalayam Kaliyannan Sundaramoorthy ◽  
Harshini Srinivasan ◽  
Keerthika Dhanasekaran
Keyword(s):  
Water Hyacinth ◽  
Eichhornia Crassipes ◽  
Nanocrystalline Cellulose ◽  
Aquatic Weed ◽  
Purification And Characterization

scholarly journals Detecting the Cool Island Effect of Urban Parks in Wuhan: A City on Rivers

2020 ◽  
Vol 18 (1) ◽  
pp. 132
Author(s):  
Qijiao Xie ◽  
Jing Li
Keyword(s):  
Remote Sensing ◽  
Negative Impact ◽  
Remote Sensing Data ◽  
Urban Parks ◽  
High Water ◽  
Water Bodies ◽  
Green Spaces ◽  
Heat Island ◽  
Island Effect ◽  
Urban Heat

As a nature-based solution, development of urban blue-green spaces is widely accepted for mitigating the urban heat island (UHI) effect. It is of great significance to determine the main driving factors of the park cool island (PCI) effect for optimizing park layout and achieving a maximum cooling benefit of urban parks. However, there have been obviously controversial conclusions in previous studies due to varied case contexts. This study was conducted in Wuhan, a city with high water coverage, which has significant differences in context with the previous case cities. The PCI intensity and its correlation with park characteristics were investigated based on remote sensing data. The results indicated that 36 out of 40 urban parks expressed a PCI effect, with a PCI intensity of 0.08~7.29 °C. As expected, larger parks with enough width had stronger PCI intensity. An increased density of hardened elements in a park could significantly weaken PCI effect. Noticeably, in this study, water bodies in a park contributed the most to the PCI effect of urban parks, while the vegetated areas showed a negative impact on the PCI intensity. It implied that in a context with higher water coverage, the cooling effect of vegetation was weakened or even masked by water bodies, due to the interaction effect of different variables on PCI intensity.

scholarly journals State of the Art Research on Sustainable Use of Water Hyacinth: A Bibliometric and Text Mining Analysis

Informatics ◽  
2021 ◽  
Vol 8 (2) ◽  
pp. 38
Author(s):  
Aman Basu ◽  
Amit Kumar Hazra ◽  
Shibani Chaudhury ◽  
Andrew B. Ross ◽  
Srinivasan Balachandran
Keyword(s):  
Water Hyacinth ◽  
Eichhornia Crassipes ◽  
Biogas Production ◽  
Sustainable Use ◽  
The United States ◽  
Pollutant Removal ◽  
Aquatic Weed ◽  
Steady Growth ◽  
Art Research ◽  
Negative Sentiment

This study aims to present a systematic data-driven bibliometric analysis of the water hyacinth (Eichhornia crassipes) infestation problem around the globe. As many solutions are being proposed in academia for its management, mitigation, and utilization, it requires investigation through a systematic scrutinizing lens. In this study, literature records from 1977 to June 2020 concerning research on water hyacinth are taken from Scopus for text analysis. Trends in the publication of different article types, dynamics of publication, clustering, correlation, and co-authoring patterns between different countries are observed. The cluster analysis indicated four clusters viz. (i) ecological works related to species, (ii) pollutant removal process and methods, (iii) utilization of biofuels for biogas production, and (iv) modelling works. It is clear from the networking analysis that most of the publications regarding water hyacinth are from India, followed by China and the United States. Sentiment analysis with the AFINN lexicon showed that the negative sentiment towards the aquatic weed has intensified over time. An exploratory analysis was performed using a bigram network plot, depicting and outlining different important domains of water hyacinth research. Water hyacinth research has passed the pioneering phase and is now at the end of a steady growth phase or at the beginning of an acceleration phase. In this article, an overview is given for the entirety of water hyacinth research, with an indication of future trends and possibilities.

scholarly journals Estimating the Biomass of Waterhyacinth (Eichhornia crassipes) Using the Normalized Difference Vegetation Index Derived from Simulated Landsat 5 TM

2015 ◽  
Vol 8 (2) ◽  
pp. 203-211 ◽  
Author(s):  
Wilfredo Robles ◽  
John D. Madsen ◽  
Ryan M. Wersal
Keyword(s):  
Vegetation Index ◽  
Normalized Difference Vegetation Index ◽  
Simulated Data ◽  
Water Bodies ◽  
Biomass Estimation ◽  
Aquatic Weed ◽  
Target Area ◽  
Data Set ◽  
Area Index ◽  
Landsat 5 Tm

Waterhyacinth is a free-floating aquatic weed that is considered a nuisance worldwide. Excessive growth of waterhyacinth limits recreational use of water bodies as well as interferes with many ecological processes. Accurate estimates of biomass are useful to assess the effectiveness of control methods to manage this aquatic weed. While large water bodies require significant labor inputs with respect to ground-truth surveys, available technology like remote sensing could be capable of providing temporal and spatial information from a target area at a much reduced cost. Studies were conducted at Lakes Columbus and Aberdeen (Mississippi) during the growing seasons of 2005 and 2006 over established populations of waterhyacinth. The objective was to estimate biomass based on nondestructive methods using the normalized difference vegetation index (NDVI) derived from Landsat 5 TM simulated data. Biomass was collected monthly using a 0.10m2 quadrat at 25 randomly-located locations at each site. Morphometric plant parameters were also collected to enhance the use of NDVI for biomass estimation. Reflectance measurements using a hyperspectral sensor were taken every month at each site during biomass collection. These spectral signatures were then transformed into a Landsat 5 TM simulated data set using MatLab® software. A positive linear relationship (r2 = 0.28) was found between measured biomass of waterhyacinth and NDVI values from the simulated dataset. While this relationship appears weak, the addition of morphological parameters such as leaf area index (LAI) and leaf length enhanced the relationship yielding an r2 = 0.66. Empirically, NDVI saturates at high LAI, which may limit its use to estimate the biomass in very dense vegetation. Further studies using NDVI calculated from narrower spectral bands than those contained in Landsat 5 TM are recommended.

scholarly journals Assessment of sustainable vermiconversion of water hyacinth by Eudrilus eugeniae and Eisenia fetida

2013 ◽  
Vol 5 (2) ◽  
pp. 451-454
Author(s):  
N. Kannadasan ◽  
Nirmala Natarajan ◽  
N. Anbusaravanan ◽  
P. Sekar ◽  
R. Krishnamoorthy
Keyword(s):  
Water Hyacinth ◽  
Eisenia Fetida ◽  
Micrococcus Luteus ◽  
Maximum Growth ◽  
Garden Soil ◽  
Cow Dung ◽  
Aquatic Weed ◽  
Eudrilus Eugeniae ◽  
Toxic Heavy Metals ◽  
Eichornia Crassipes

The present work has assessed sustainable vermiconversion of aquatic weed water hyacinth (Eichornia crassipes). The garden soil, water hyacinth and cow dung were taken in the following the combinations of 1: 2 : 1, 2: 1: 1 and 1 : 1: 2. Two species of earthworms Eudrilus eugeniae and Eisenia fetida was used for the experiment. The total nitrogen (0.18% in control and 1.68% in earthworm treated) and phosphate (0.63 % in control and 1.64 % in earthworm treated) levels were increased and toxic heavy metals zinc (7.66 ppm in control and 2.58 ppm in earthworm treated) and copper (6.68 ppm in control and 1.15 ppm in earthworm treated) were significantly decreased. The earthworm enriches the compost with various nutrients for plant and microbial growth. Plant growth studies were conducted in all the combination of water hyacinth, maximum growth of root length (8.9cm and 7.2 in control) and shoot length (21.6cm and 16.2 in control) observed compare to control. Gut microbial analysis revealed that Bacillus cereus, Micrococcus luteus were predominantly present in the earthworm. The study recommended that the aquatic weed compost was suitable of agricultural usage.

Sign in / Sign up

Export Citation Format

Share Document