Sustainable removal of formaldehyde using controllable water hyacinth

Gong, Ying; Zhou, Xiaorong; Ma, Xingmiao; Chen, Jiping

doi:10.1016/j.jclepro.2018.01.220

Cited by 41 publications

(11 citation statements)

References 30 publications

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“…When a conducive environment exists, water hyacinth can produce an annual biomass of 50-60 t/ha and doubles its area coverage every 6-15 days [2,4]. Its high tolerance to different environmental conditions such as pH and nutrient level [5,6] combined with its rapid growth and formation of dense impenetrable mats make it a unique weed with a severe potential negative effect to freshwater ecosystems. Water hyacinth exists as a major weed in more than 50 countries such as Zimbabwe, South Africa, and Ethiopia [7][8][9], where it is prevalent in tropical and subtropical regions [10].…”

Section: Introductionmentioning

confidence: 99%

Spatiotemporal Dynamics and Environmental Controlling Factors of the Lake Tana Water Hyacinth in Ethiopia

et al. 2020

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The largest freshwater lake in Ethiopia, Lake Tana, has faced ecological disaster due to water hyacinth (Eichhornia crassipes) infestation. The water hyacinth is a threat not only to the ecology but also to the socioeconomic development of the region and cultural value of the lake, which is registered as a UNESCO reserve. This study aims to map the spatiotemporal dynamics of the water hyacinth using high-resolution PlanetScope satellite images and assesses the major environmental variables that relate to the weed spatial coverage dynamics for the period August 2017 to July 2018. The plausible environmental factors studied affecting the weed dynamics include lake level, water and air temperature, and turbidity. Water temperature and turbidity were estimated from the moderate resolution imaging spectroradiometer (MODIS) satellite image and the water level was estimated using Jason-1 altimetry data while the air temperature was obtained from the nearby meteorological station at Bahir Dar station. The results indicated that water hyacinth coverage was increasing at a rate of 14 ha/day from August to November of 2017. On the other hand, the coverage reduced at a rate of 6 ha/day from December 2017 to June 2018. However, the length of shoreline infestation increased significantly from 4.3 km in August 2017 to 23.4 km in April 2018. Lake level and night-time water temperatures were strongly correlated with water hyacinth spatial coverage (p < 0.05). A drop in the lake water level resulted in a considerable reduction of the infested area, which is also related to decreasing nutrient levels in the water. The water hyacinth expansion dynamics could be altered by treating the nutrient-rich runoff with best management practices along the wetland and in the lake watershed landscape.

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Section: Introductionmentioning

confidence: 99%

Spatiotemporal Dynamics and Environmental Controlling Factors of the Lake Tana Water Hyacinth in Ethiopia

et al. 2020

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“…Water hyacinth plants are known to have an extensive root system, a large number of cells, and high absorption capacity, and thereby possess ability to absorb a large volume of water, chemical, heavy metal, and waste liquid into its cells via the vascular tissue system (Mishra and Tripathi 2009). Consequently, water hyacinth has been used for many absorption purposes, such as reducing chemical substances and removal of toxins or hazardous chemicals from wastewater (Low et al 1995;Carvalho Dos Santos and Lenzi 2000;Hasan et al 2010;Murithi et al 2014;Gong et al 2018). For example, Mukherjee and Mondal (1995) showed that the living water hyacinth reduced the concentration of Pb (0.5 mg/L to 10 mg/L) by 85% to 92% within 10 days.…”

Section: Living Water Hyacinth Plant Adsorption Behaviormentioning

confidence: 99%

“…In fact, it can double in size between 6 d to 28 d and weigh in the range of 270 tons per hectare to 400 tons per hectare (Epstein 1998;Malik 2007). According to its extensive root system, the water hyacinth root can consume large amounts of chemical pollutants in the water (Gong et al 2018), and its high cellulose polymer content can be used to produce low-cost cellulose membranes and cellulose nanofibers (Sundari and Ramesh 2012;Istirokhatun et al 2015).…”

Section: Introductionmentioning

confidence: 99%

Treatment of fresh water hyacinth with essential oil emulsion and subsequent use of the plant material for control of Aspergillus flavus on rice dessert products

Songsamoe

Matan

2020

BioRes

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Essential oil emulsion, which is generally functionalized to have increased antifungal activity, has high solubility in water. The objective of this research was to develop an essential oil emulsion for absorption by water hyacinth plants in order to produce an essential oil absorbent material as a carrier of essential oil vapor that can be released to control mold in an enclosed packaging system. The fresh water hyacinth adsorbed the Michelia alba oil emulsion (100 µL/mL to 500 µL/mL) through its root system, transporting it to the stems and leaves after submerging the plant into the M. alba oil emulsion for 48 h. Dried sections (root, stem, and leaf) of the water hyacinth plant with absorbed M. alba essential oil emulsion released the M. alba vapor, inhibited Aspergillus flavus growth on malt extract agar (MEA), and also Thai dessert (Ja Mongkut) with the highest antifungal activity achieved with the concentration 500 µL/mL. The maximum essential oil absorption (345 µL/g) in the fresh plant was achieved after 48 h. The dried water hyacinth (≥ 0.4 g/L air) completely inhibited the growth of A. flavus for at least 7 days. In addition, the absorbent material prevented the growth of A. flavus on the Thai dessert (Ja Mongkut) with approximately 100% effectiveness (versus the control) for 10 days, thereby extending the shelf-life 2.5-fold in when compared with the control without essential oil.

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“…Similarly, the use of feedstock with phytoremediation properties targeting metals could induce substrate inhibition. Water hyacinth is not only capable of uptaking nutrients but also heavy metals from contaminated waters [16][17][18][19]. The presence of high heavy metals in a soluble free form within anaerobic reactors leads to the accumulation of intermediate organic compounds and reduction in biogas production [20,21].…”

Section: Introductionmentioning

confidence: 99%

Interaction effect of high feed to inoculum ratio (F/I) and temperature on the biomethanation kinetics of water hyacinth

Castro

Agblevor

2020

SN Appl. Sci.

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The anaerobic digestion of the invasive water hyacinth (Pontederia crassipes Mart.) from eutrophic water bodies could contribute to the sustainability of communities that have insecure energy sources. The optimization of critical process parameters, e.g., feed to inoculum ratio (F/I), temperature, supplementation, and inoculum acclimatization is important for large-scale applications. In the present work, water hyacinth was anaerobically digested at different F/I (1.0, 5.0, 10.0, and 30.0), mesophilic temperatures (30 and 40 °C), and supplementation settings using non-acclimatized and acclimatized inoculum to determine the process's optimal conditions through kinetics (modified Gompertz, Chen and Hashimoto, and first-order) and energy analyses. The F/I ratio had a directly proportional effect on the methane yield [N mL•CH4/g•VS], which ranged from 416.8 ± 6.2 (F/I = 1.0) to 263.8 ± 26.9 (F/I = 30.0). The methane production rate [N mL•CH4/g•VS•day] was highest at 40 °C (9.0 ± 0.8) and lowest at F/I = 30 (5.6 ± 2.8). The biomethanation of water hyacinth followed the modified Gompertz and Chen and Hashimoto models when using the non-acclimatized and acclimatized inoculum, respectively. A 30-day pseudo-lag phase was observed at the highest F/I (30) and low temperature (30 °C) but was negligible at higher temperature (40 °C). For a 5.0 m 3 biodigester, the highest estimated net energy occurred at F/I = 30 (370.5 ± 22.6 MJ). The doubling times at 40 °C (16.9 ± 0.3 days) were lower than that at 30 °C (49.6 ± 2.5 days). The anaerobic digestion of water hyacinth in batch mode was optimal at higher F/I ratio and high mesophilic temperatures.

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Sustainable removal of formaldehyde using controllable water hyacinth

Cited by 41 publications

References 30 publications

Spatiotemporal Dynamics and Environmental Controlling Factors of the Lake Tana Water Hyacinth in Ethiopia

Spatiotemporal Dynamics and Environmental Controlling Factors of the Lake Tana Water Hyacinth in Ethiopia

Treatment of fresh water hyacinth with essential oil emulsion and subsequent use of the plant material for control of Aspergillus flavus on rice dessert products

Interaction effect of high feed to inoculum ratio (F/I) and temperature on the biomethanation kinetics of water hyacinth

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