EXTRACTING HEAVY-METALS FROM MUNICIPAL AND INDUSTRIAL SLUDGES

被引：80

作者：

LO, KSL ^{[1
]}

CHEN, YH ^{[1
]}

机构：

[1] MUNICIPAL GOVT TAIPEI,BUR PUBL WORKS,DEPT SEWERAGE ENGN,TAIPEI,TAIWAN

来源：

SCIENCE OF THE TOTAL ENVIRONMENT | 1990年 / 90卷

关键词：

D O I：

10.1016/0048-9697(90)90189-2

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

This study used acidity, ethylenediaminetetracetic (EDTA) and nitrilotriacetic (NTA) acids treatment processes to explore the removal efficiencies of heavy metals from urban and industrial sludges. The results indicate that the optimum treatment efficiencies of heavy metals extraction from sludge are related to the species of heavy metals in sludge, dosage of extractants and the reaction time. The removal efficiency of a three-stage countercurrent process was higher than those of single-stage processes. The reaction kinetics can be expressed by the equation dC/dt = - KC. The cost of the acid treatment process per unit weight of heavy metal extracted was lowest in conditions of high heavy metal concentrations, but the EDTA process was the cheapest with low heavy metal concentrations. © 1990.

引用

页码：99 / 116

页数：18

共 17 条

[1] EVALUATION OF HEAVY-METALS SPECIATION IN AN URBAN SLUDGE .2. COLUMN METHOD
CAMPANELLA, L
CARDARELLI, E
FERRI, T
PETRONIO, BM
PUPELLA, A
[J]. SCIENCE OF THE TOTAL ENVIRONMENT, 1987, 61 : 229 - 234
[2] EVALUATION OF HEAVY-METALS SPECIATION IN AN URBAN SLUDGE .1. BATCH METHOD
CAMPANELLA, L
CARDARELLI, E
FERRI, T
PETRONIO, BM
PUPELLA, A
[J]. SCIENCE OF THE TOTAL ENVIRONMENT, 1987, 61 : 217 - 228
[3] CHILDS CW, 1971, 14TH P C GREAT LAK R, P198
[4] DAVIS JA, 1975, J WATER POLLUT CON F, V47, P2292
[5] GOULD MS, 1975, 30TH P IND WAST C PU, P689
[6] HAYES TD, 1979, ANN ARBOR SCI, P529
[7] JENKINS RL, 1981, J WATER POLLUT CON F, V53, P25
[8] KLEIN LA, 1974, J WATER POLLUT CON F, V46, P2653
[9] KOCH CM, 1982, J WATER POLLUT CON F, V54, P339
[10] LO KSL, 1984, 9TH P C WAST TREATM, P310

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