Trace elements in sewage sludges

Berrow, M. L.; Webber, J.

doi:10.1002/jsfa.2740230112

Cited by 204 publications

(37 citation statements)

References 9 publications

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“…Depending on its source, sewage sludge can contain high concentrations of heavy metals (Berrow and Webber, 1971). This is especially so of Cd, which is often concentrated in sewage sludge from vegetables which have been fertilised with inorganic phosphates; a common application in depauperate Australian soils (Nursita et al, in press).…”

Section: Discussionmentioning

confidence: 99%

Microcosm Testing of Municipal Sewage and Green Waste for Full-Scale Remediation of an Acid Coal Pit Lake, in Semi-Arid Tropical Australia

McCullough¹,

Lund²,

May³

2006

JASMR

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Pit lakes (abandoned flooded mine pits) represent a potentially valuable water resource to mining companies, the environment and regional communities across arid inland Australia. However, the water is often of low pH with high dissolved metal concentrations.The addition of organic matter to the pit lakes to enhance microbial sulfate reduction is potentially a cost effective and sustainable remediation strategy for these acid waters. However, the cost and availability of sufficient quantities of suitable organic substrates is typically limiting in these remote regions. Nevertheless, small quantities of sewage and green waste (organic garden waste) are often available in these areas from the regional towns which support the mines. This paper reports on preliminary microcosm laboratory experiments in preparation for the treatment of an acid (pH 2.2) coal mine pit lake in semi-arid tropical, inland north Queensland, Australia with municipal treated sewage and green waste.A laboratory experiment using microcosms (acrylic tubes) containing acid pit lake water and sediment were treated as follows; controls (untreated), sewage, green waste and sewage and green waste. The pH increased to a maximum of 5.5 in 145 days in the green waste and sewage treatment, with notable decreases of iron, aluminium and toxic heavy metals. Our results indicated that the green waste was a key component in alkalinity production and heavy metal removal.

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Section: Discussionmentioning

confidence: 99%

Microcosm Testing of Municipal Sewage and Green Waste for Full-Scale Remediation of an Acid Coal Pit Lake, in Semi-Arid Tropical Australia

McCullough¹,

Lund²,

May³

2006

JASMR

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“…Page (1974) cites several studies concerning water and acetic acid soluble metals in sludge. Berrow and Webber, (1972) used 0.05 M acetic acids to extract metals from sludge samples. Thus a variable proportion of total metal present is extracted with 0.5 M acetic acid.…”

Section: Introductionmentioning

confidence: 99%

Operationally determined speciation of copper and zinc in sewage sludge

Shrivastava

Banerjee

1998

Chemical Speciation & Bioavailability

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“…The metals that can be present in sludge and effluent in amounts sufficient to be a potential hazard to plants or the food chain are Pb, Zn, Cd, Cr, Ni, Co, Cu, and Hg (Chaney 1973). Zn, Cu, llnd Ni may be present in sufficient quantity to be directly toxic to plants (Berrow & Webber 1972), and Pb, Zn, Cd, Cu, and Hg present the greatest h:::zard to the food chain.…”

Section: Introductionmentioning

confidence: 99%

III. Heavy metal content of sewage effluent, sludge, soil, and pasture

Quin¹,

Syers

1978

New Zealand Journal of Agricultural Research

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Surface irrigation of pasture with treated sewage effiuent at Templeton, Christchurch for up to 16 years, had little effect on the heavy metal composition of the soil or pasture. Slightlv higher levels of O.IN HC1-extractable Zn, Cu, Co, and Mn in the effiuent-treated soil did not increase levels of these elements in the pasture, and did not increase the Cd/Zn ratio. The ilb:ience of any marked changes in heavy metal content is attributed to the low levels of these elements in the raw sewage effiuent, which is of domestic origin. It is concluded that at the present effiuent application rate (840 mm/year) the scheme, without sludge disposal, has an essentially indefinite life span, in terms of heavy metal accumulation. If land application of the sludge is introduced, it would take at least 200 years for heavy metals to reach the recommended limit of 5% of the soil cation exchange capacity.

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Trace elements in sewage sludges

Cited by 204 publications

References 9 publications

Microcosm Testing of Municipal Sewage and Green Waste for Full-Scale Remediation of an Acid Coal Pit Lake, in Semi-Arid Tropical Australia

Microcosm Testing of Municipal Sewage and Green Waste for Full-Scale Remediation of an Acid Coal Pit Lake, in Semi-Arid Tropical Australia

Operationally determined speciation of copper and zinc in sewage sludge

III. Heavy metal content of sewage effluent, sludge, soil, and pasture

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