Kinetic analysis of constructed systems for the recovery of contaminated areas by acid mine drainage

被引:0
作者
Mendes, Erlon [1 ]
Barros, Erilson [1 ]
Zocche, Jairo Jose [1 ,2 ]
Alexandre, Nadja Zim [1 ]
Galatto, Sergio Luciano [1 ]
Back, Marcos [1 ]
Pereira, Jader Lima [1 ]
Frassetto, Jonathan [1 ]
Angioletto, Elidio [1 ,3 ]
机构
[1] Univ Southernmost Catarinense UNESC, Environm & Technol Res Inst IPAT, BR-88806000 Criciuma, SC, Brazil
[2] Univ Southernmost Catarinense UNESC, Acad Unit Humanities Sci & Educ, Postgrad Program Environm Sci, Landscape Ecol & Vertebrate Lab, BR-88806000 Criciuma, SC, Brazil
[3] Univ Southernmost Catarinense UNESC, Acad Unit Sci Engn & Technol, Postgrad Program Sci & Mat Engn, BR-88806000 Criciuma, SC, Brazil
关键词
Kinetics; Acid drainage; Modeling; Rehabilitation of degraded areas; FLY-ASH; COMBUSTION; SOIL;
D O I
10.1007/s11356-011-0710-2
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
Flowing of the acid mine drainage may contaminate the adjacent water bodies causing substantial changes in the aquatic ecosystem. This aspect is the most relevant problem in the southern of Santa Catarina once the contaminated areas are inserted in the watershed of the Ararangua, Urussanga, and Tubaro rivers, increasing the need for recovery studies. These areas are between CriciA(0)ma, I double dagger ara, Urussanga, Siderpolis, Lauro Muller, Orleans, and Alfredo Wagner towns where a conservation unit exist called the Environmental Preservation Area of Baleia Franca. Aiming to compare the kinetics of the ash derived from burning coal and to neutralize acid mine drainage, different neutralizer, limestone, fly, and bottom ash, was mounted on a pilot scale experiment. The transport parameters showed the same order of infiltration and dispersion: fly ash < bottom ash < limestone. The order of measured alkalinity was: limestone < fly ash < bottom ash, with pH values of 9.34, 12.07, and 12.25, respectively. The limestone kinetics of acidic drainage neutralization was first order with reaction rate constant k = 0.0963 min(-1), bottom ash was 3/4 with k = 0.0723 mol(1/4) L-1/4 min(-1), and the fly ash had higher order kinetics, 4/3, with reaction rate constant k = 27.122 L-1/3 mol(-1/3) min(-1). However, by mathematical modeling, it was found that due to a combination of transport and kinetics, only limestone treatment reached a pH above 6 within 5 years, corresponding to the ideal as planned.
引用
收藏
页码:2107 / 2114
页数:8
相关论文
共 21 条
[1]   A review on the utilization of fly ash [J].
Ahmaruzzaman, M. .
PROGRESS IN ENERGY AND COMBUSTION SCIENCE, 2010, 36 (03) :327-363
[2]   KINETICS OF LIMESTONE NEUTRALIZATION OF ACID WATERS [J].
BARTON, P ;
VATANATHAM, T .
ENVIRONMENTAL SCIENCE & TECHNOLOGY, 1976, 10 (03) :262-266
[3]   Pressurized fluidized bed combustion ash .2. Soil and mine spoil amendment use options [J].
Brown, TH ;
Bland, AE ;
Wheeldon, JM .
FUEL, 1997, 76 (08) :741-748
[4]   PHYSICAL-PROPERTIES OF FLY ASH AMENDED SOILS [J].
CHANG, AC ;
LUND, LJ ;
PAGE, AL ;
WARNEKE, JE .
JOURNAL OF ENVIRONMENTAL QUALITY, 1977, 6 (03) :267-270
[5]  
CIENTEC, 2006, FOSS COAL ASH BRAZ, V1
[6]  
Daniels W.L., 2002, POTENTIAL BENEFICIAL
[7]  
Dos Santos W, 2008, EVALUATION BOTTOM AS
[8]  
Fogler H.S., 2006, ELEMENTS CHEM REACTI
[9]   Chemical characterization of synthetic soil from composting coal combustion and pharmaceutical by-products [J].
Guest, CA ;
Johnston, CT ;
King, JJ ;
Alleman, JE ;
Tishmack, JK ;
Norton, LD .
JOURNAL OF ENVIRONMENTAL QUALITY, 2001, 30 (01) :246-253
[10]  
Korcak RF, 1998, AGR USES COAL COMBUS