Vegetation of Waste Disposal Areas at a Coal‐Fired Power Plant in Kansas

Mulhern, D. W.; Robel, Robert J.; Furness, James C.; Hensley, David L.

doi:10.2134/jeq1989.00472425001800030007x

Cited by 31 publications

(21 citation statements)

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“…and Leucaena leucocephala have been demonstrated to have high tolerance and survival in arid, infertile and metal-contaminated areas (Barnet et al 1985;Mulhern et al 1989;Wong et al 1992;Muslin 1993). In addition, legume plants and symbiotic N 2 -fixing bacteria can improve the nitrogen (N) content of infertile soils (Sanginga et al 1994).…”

Section: Effect Of Fly-ash On Plant Growth and Vegetationmentioning

confidence: 99%

“…In this regard, it is interesting to note that press mud, when used as a biofertiliser, farm yard manure, paper mill wastes and several other organic amendments have been used as alternative amendment materials in lieu of standard fertilisers to aid revegetation. Several studies have shown the potential benefits of using sewage sludge compost as a fly-ash ameliorant (Topper and Sabey 1986;Mulhern et al 1989;Pietz et al 1989a, b). Plant species selection is an important factor in determining the success of rehabilitation on fly-ash lagoons.…”

Section: Bioremediation Of Fly-ashmentioning

confidence: 99%

“…The species selected should be able to grow in enriched levels of trace elements and a highly alkaline environment. Most herbaceous plants, such as Agropyron ryens, Festuca and Melilotus , were found to grow better than many tree species on fly-ash (Mulhern et al 1989). Due to the large differences in species' response to fly-ash more plant species should be tested when selecting species for fly-ash lagoon rehabilitation.…”

Section: Bioremediation Of Fly-ashmentioning

confidence: 99%

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Impacts of fly-ash on soil and plant responses

Gupta

Upendra

Tripathi

et al. 2002

Journal of Plant Research

195

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Coal combustion produces carbon dioxides, SO x, NO x and a variety of byproducts, including fly-ash, flue gas and scrubber sludge. Fly-ash consists of minute glass-like particles and its deposition on leaves inhibits the normal transpiration and photosynthesis of plants. Fly-ash also affects the physicochemical characteristics of soil because it is generally very basic, rich in various essential and non-essential elements, but poor in both nitrogen and available phosphorus. The massive fly-ash materials have been a potential resource for the agricultural activities as well as the other industrial purposes. Practical value of fly-ash in agriculture as an 'effective and safe' fertiliser or soil amendment can be established after repeated field experiments. Here remains to be disclosed the biological processes and interactions due to 'lack and excess' of the fly-ash exposures along with abiotic and biotic factors. These may involve the symbiotic fixation of nitrogen and the biological extraction of metals following immobilisation of toxic heavy metal ions, as well as other neutralisation and equilibration processes during weathering. Nitrogen-fixing plants with an apparent heavy metal-tolerance can be helpful as the early colonisers of fly-ash dumps and nearby areas.

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Section: Effect Of Fly-ash On Plant Growth and Vegetationmentioning

confidence: 99%

Section: Bioremediation Of Fly-ashmentioning

confidence: 99%

Section: Bioremediation Of Fly-ashmentioning

confidence: 99%

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Impacts of fly-ash on soil and plant responses

Gupta

Upendra

Tripathi

et al. 2002

Journal of Plant Research

195

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“…Several studies indicated that fly ash could be toxic for plants. Establishing vegetation on fly ash basins is difficult due to physical or chemical limitations to plant growth (Mulhern et al 1989). Among the possible chemical limitations is the absence of N, less available P and presence of potentially toxic concentrations of trace elements in the ash.…”

Section: Introductionmentioning

confidence: 99%

Restoration of fly ash dump through biological interventions

Juwarkar

Jambhulkar

2007

Environ Monit Assess

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Field experiment on 10 ha area of fly ash dump was conducted to restore and revegetate it using biological interventions, which involves use of organic amendment, selection of suitable plant species along with specialized nitrogen fixing strains of biofertilizer. The results of the study indicated that amendment with farm yard manure at 50 t/ha improved the physical properties of fly ash such as maximum water holding capacity from 40.0 to 62.42% while porosity improved from 56.78 to 58.45%. The nitrogen content was increased by 4.5 times due to addition of nitrogen fixing strains of Bradyrhizobium and Azotobacter species, while phosphate content was increased by 10.0 times due to addition of VAM, which helps in phosphate immobilization. Due to biofertilizer inoculation different microbial groups such as Rhizobium, Azotobacter and VAM spores, which were practically absent in fly ash improved to 7.1 x 10(7), 9.2 x 10(7) CFU/g and 35 VAM spores/10 g of fly ash, respectively. Inoculation of biofertilizer and application of FYM helped in reducing the toxicity of heavy metals such as cadmium, copper, nickel and lead which were reduced by 25, 46, 48 and 47%, respectively, due to the increased organic matter content in the fly ash which complexes the heavy metals thereby decreasing the toxicity of metals. Amendment of fly ash with FYM and biofertilizer helped in profuse root development showing 15 times higher growth in Dendrocalamus strictus plant as compared to the control. Thus amendment and biofertilizer application provided better supportive material for anchorage and growth of the plant.

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“…Adams et al, (1971) reported successful vegetation establishment on fly ash based scrubber sludge without any soil cover. Mulhern et al, (1989) also demonstrated that several herbaceous and tree species could be established on scrubber sludge without any soil cover.…”

Section: Introductionmentioning

confidence: 91%

Vegetation Establishment on Soil-amended Weathered Fly Ash

Semalulu¹,

Barnhisel²,

Witt³

1998

ASMR

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Abstract. A field study was conducted with the following objectives in mind: I) to study the effect of soil addition to weathered fly ash on the establishment and survival of different grasses and legumes, 2) to identify suitable grasses and/or legume species for vegetation of fly ash, 3) to study the fertilizer N and P requirements for successful vegetation establishment on fly ash and ash-soil mixtures, 4) to examine the nutrient composition of the plant species tested, and 5) to study the plant availability of P from fly ash and ash-soil mixtures. Three rooting media were used: weathered fly ash, and 33% or 50% soil blended with the ash. Four experiments were established on each of these media to evaluate warm season grasses in pure stands, warm season grasses inter-seeded with legumes, cool season grasses, and cool season grasses inter-seeded with legumes. Soil used in this study was more acidic than the fly ash. Only the results from characterization of the rooting media, ground cover, and yield will be presented here. Additional

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Vegetation of Waste Disposal Areas at a Coal‐Fired Power Plant in Kansas

Cited by 31 publications

References 0 publications

Impacts of fly-ash on soil and plant responses

Impacts of fly-ash on soil and plant responses

Restoration of fly ash dump through biological interventions

Vegetation Establishment on Soil-amended Weathered Fly Ash

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