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REVISTA DE BIOLOGIA=20 E=20 CI=CANCIAS DA TERRA |
ISSN=20 1519-5228 |
Volume 5 - N=FAmero 2 - =
2=BA Semestre=20
2005
Caracteriza=E7=E3o f=EDsico-qu=EDmica do lodo de = esta=E7=E3o de=20 tratamento de despejos do Curtume Santo Agostinho para o uso = agr=EDcola
Cicera Josislane Crispim =
da=20
Silva1, Maria Gorethe de Sousa=20
Lima2, Clayton Moura de=20
Carvalho3, Waleska Martins=20
Eloi4, Marcelo Mendes=20
Pedroza5, Cicero Josivan Crispim da =
Silva6
RESUMO
Este trabalho foi =
realizado com=20
o objetivo de estudar a caracteriza=E7=E3o f=EDsico-qu=EDmica do lodo de =
esta=E7=E3o de=20
tratamento de despejos de curtume para o uso agr=EDcola. O lodo estudado =
foi=20
oriundo da esta=E7=E3o de tratamento de efluentes do Curtume Santo =
Agostinho=20
localizado em Juazeiro do Norte - CE. Esse lodo, inicialmente passou por =
uma=20
caracteriza=E7=E3o f=EDsico-qu=EDmica, realizada nos laborat=F3rios de =
Qu=EDmica e=20
Fertilidade do Solo da Universidade Federal da Para=EDba (UFPB), no de =
Qu=EDmica=20
Anal=EDtica e F=EDsico-qu=EDmica da Universidade Federal do Cear=E1 =
(UFC) e no de=20
An=E1lises de =C1guas e Efluentes (LAE), no Centro Vocacional =
Tecnol=F3gico (CVT),=20
Crato. Ap=F3s a caracteriza=E7=E3o do lodo conclui-se que o referido =
lodo apresentou=20
os macro (P, K, Ca e Mg) e micro (Fe, Cu e Mn) nutrientes essenciais =
para=20
caracter=EDsticas nutricionais necess=E1rias para um bom desempenho na =
agricultura.=20
Os altos valores de C.E. (23,7) e RAS (6,67) contidos no lodo foram =
oriundos do=20
uso de cloretos de s=F3dio e sulfato de am=F4nio na descalcinac=E3o e =
sulfato de cromo=20
no curtimento. O lodo tamb=E9m apresentou elevados teores de s=F3dio =
(31.830 mg=20
L-1) e cromo (836 mg L-1)
Palavras-chave: reciclagem agr=EDcola, adubo org=E2nico, =
lodo de=20
esgoto.
ABSTRACT
This work was carried through with the objective to study =
the=20
characterization physicist-chemistry of the silt of station of treatment =
of=20
oustings of tannery for the agricultural use. The studied silt was deriving =
of the=20
effluent station of treatment of of the Tannery Saint Augustin located =
in=20
Juazeiro of North - CE. =
This silt,=20
initially passed for a characterization physicist-chemistry, carried =
through in=20
the chemistry laboratories and Fertility of the Ground of the Federal =
University=20
of Para=EDba (UFPB), in the one of Analytical Chemistry and =
Physicist-chemistry of=20
the Federal University of Cear=E1 (UFC) and in the one of Analyses of =
Waters and=20
Efluentes (LAE), in Centro Vocacional Tecnol=F3gico (CVT), Crato. After the characterization of =
the silt=20
concludes that the cited silt presented the macro (P, K, Ca and Mg) and =
micron=20
(Fe, Cu and Mn) nutrient essentials for necessary nutricionais =
characteristics=20
for a good performance in agriculture. =20
The high values of C.E. (23,7) and RAS (6,67) contained in the =
silt had=20
been deriving of the chloride use of sodium and sulphate of ammonium in =
the=20
descalcinac=E3o and chromium sulphate in the tanning. The silt also presented high =
texts of=20
sodium (31,830 mg L-1) and chromium (836 mg L-1)=20
agricultural recycling, organic seasoning, silt of =
sewer.
Keywords: agricultural recycling, =
organic=20
seasoning, silt of sewer.