摘要
近年来,随着工业的发展,电能消耗日益增加,供需矛盾日益突出,为缓解用电的紧张局势,我国北方以煤为燃料的小火电厂时有投建和落成,其中很多电厂,将水力冲出的粉煤灰漓干后,运出厂外,进行填沟造田,而且很多干沟灰场都临近城镇居民地下饮用水源地之上(如陕西渭南电厂,渭河电厂,旬邑电厂等)。为了弄清这种堆灰是否因降雨。
Fluorides in coal ashes dumped outside of a coat-fired power station may contaminate ground water in process of leaching by rainfall. This paper presents an experiment of leaching by simulated rainfall under different conditions of pH and temperatures. The results showed that fluoride concentration in leaching liquid was higher than 3 mg/L, thus it would contaminare ground water at shallow level. Disolubility of fluorides from coal ashes was higher in summer season and in pH 4.
出处
《环境科学》
EI
CAS
CSSCI
CSCD
北大核心
1989年第3期26-29,共4页
Environmental Science
