Tracer Experimental Study of the Main Conveying Conduits of
鲁迅美术学院-人大简历
Tracer Experimental Study of the Main
Conveying
Conduits of CCl4 Pollutant in the
Qiligou Water
Supply Resource
PEI
Zong-ping; HAN Bao-ping; LIU Han-hu; LIANG Zhi;
ZHOU Dong-lai; ZHU Xue-
qiang
【期刊名称】《《矿业科学技术（英文版）》》
【年(卷),期】2007(017)002
【摘要】The
Ordovician karst groundwater in the Qiligou basin
is an
important water supply source. This
groundwater has been seriously
contaminated in
recent years by CCl4 from a pesticide plant
located in
the recharge area. The highest
concentration of CCl4 in the
groundwater is
3909.2 μgL. Large scale tracer experiments were
carried
out to study the conveying conduits
for CCl4 in the basin on May 1-6,
2005.
Nontoxic, edible glucose was used as a tracer and
it was detected
by spectrophotometric
techniques. Well X-61, located near the pesticide
plant in the southern recharge area of the
basin, was employed for
injecting the tracer.
Ten wells widely located in the groundwater runoff
area were used as observing and sampling
wells. The results show that
the migration of
the pollutants is controlled by the water
hydrodynamic
field and by the development of
karst conduits. The tracer did not enter
the
up-drainage wells, X-49 and X-47, near the
injection point because
the water levels at
these wells are higher than at the injection
point. The