TY - JOUR
T1 - Fate of Trace Metals in Los Angeles County Wastewater Discharge
AU - Morel, Francois M.M.
AU - Westall, John C.
AU - Omella, Charles R.
AU - Morgan, James J.
PY - 1975/8/1
Y1 - 1975/8/1
N2 - A chemical equilibrium model of the Los Angeles County sewage is presented which accounts for the chemical speciation of trace metals. Many metals are found in very insoluble sulfide (Zn, Hg, Ag, Cu, Cd, Pb) or oxide (Cr, Fe) forms, while some (Ni, Co, Mn) are relatively soluble. A study of the oxidation and dilution of the sewage by seawater demonstrates that most metals tend to be solubilized upon disposal in the ocean and that unmeasurable increments in the natural metal concentrations should result in the farfield. It is argued that the sewage particulate is not mobilized in the vicinity of the outfall and that the nearby sediments are a mixture of naturally occurring sediments and sewage particulate. About 0.5% of the sewage particulate— and its metal content—can be accounted for in the reduced area.
AB - A chemical equilibrium model of the Los Angeles County sewage is presented which accounts for the chemical speciation of trace metals. Many metals are found in very insoluble sulfide (Zn, Hg, Ag, Cu, Cd, Pb) or oxide (Cr, Fe) forms, while some (Ni, Co, Mn) are relatively soluble. A study of the oxidation and dilution of the sewage by seawater demonstrates that most metals tend to be solubilized upon disposal in the ocean and that unmeasurable increments in the natural metal concentrations should result in the farfield. It is argued that the sewage particulate is not mobilized in the vicinity of the outfall and that the nearby sediments are a mixture of naturally occurring sediments and sewage particulate. About 0.5% of the sewage particulate— and its metal content—can be accounted for in the reduced area.
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U2 - 10.1021/es60106a011
DO - 10.1021/es60106a011
M3 - Article
AN - SCOPUS:0016543911
SN - 0013-936X
VL - 9
SP - 756
EP - 761
JO - Environmental Science and Technology
JF - Environmental Science and Technology
IS - 8
ER -