Plant species for revegetation of a saline flue gas desulfurization sludge pond

L. F. Salo, Janick F Artiola, J. W. Goodrich-Mahoney

Research output: Contribution to journalArticle

19 Citations (Scopus)

Abstract

Codisposing saline wastewater from electrical generating stations with flue gas desulfurization (FGD) scrubber sludge simplifies waste disposal but produces a saline waste that will later require revegetation. This waste is low in macronutrients, contains high levels of salts and B, and has a fine texture. This study identified plants, based on germination test results, that show promise for sowing at an evaporation pond in eastern Arizona where scrubber sludge and wastewater are codisposed. Forty-four grass, forb, and shrub accessions germinated on filter paper in saline water from the disposal pond. Dilutions of disposal pond water with untreated well water from the site ranged in EC from 0.17 to 3.03 S m-1. Our criteria for evaluating plants to be used in revegetating saline FGD sludge were: (i) ability to germinate in increasing levels of disposal pond water and (ii) ease of establishment from seed. The percentage of pond water that would reduce germination to 50% that of well-water controls (P50) ranged as high as >100 for the must tolerant plants. Accessions that show promise for sowing at these types of saline waste disposal sites include: Elytrigia pontica 'Jose' and 'Largo', Atriplex gardneri, Puccinellia airoides, P. distans 'Fults', Festuca arundinacea 'Alta' and 'Fawn', Krascheninnikoria lanata, Kochia prostrata 'Immigrant', Panicum virgatum 'Nebraska 28', Sporobolus airoides 'Saltalk', Leymus angustus 'Praireland' and Elymus trachycaulus 'Pryor'.

Original languageEnglish (US)
Pages (from-to)802-808
Number of pages7
JournalJournal of Environmental Quality
Volume25
Issue number4
StatePublished - Jul 1996

Fingerprint

Revegetation
revegetation
Ponds
Desulfurization
Flue gases
pond
sludge
Water
Scrubbers
well water
sowing
Waste disposal
waste disposal
germination
Wastewater
wastewater
water
Saline water
Dilution
Seed

ASJC Scopus subject areas

  • Environmental Science(all)
  • Environmental Chemistry

Cite this

Plant species for revegetation of a saline flue gas desulfurization sludge pond. / Salo, L. F.; Artiola, Janick F; Goodrich-Mahoney, J. W.

In: Journal of Environmental Quality, Vol. 25, No. 4, 07.1996, p. 802-808.

Research output: Contribution to journalArticle

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