摘要
本文对三种供试工业废弃物，经土地处理后表明，发光细菌毒性明显降低，有的废渣处理物毒性已消除；Ａｍｅｓ试验和发光细菌自发暗变种的遗传毒性减弱，由阳性下降为阴性，或阳性程度明显减弱。急性毒性和遗传毒性下降的根本原因在于土地处理物中有毒有机化学物阵解所至。木试验废渣经土地处理后，其可萃取有机物含量明显下降，总下降率为４０－７１％，主要的有机化学物降解率为５０－９０％。从而表明，土地处理是工业废渣很有前途的处理途径。
The acute toxicity from three types of industrial wastes in photobacteria
testsignificantly decreased,even disappeared,after land treatment.The genetic toxicityof
samples both in the Ames test and in the spontaneous dark variant of photobac-teria test was
weakened from positive to negative,or the degree of positive wasobviously weakened.The
basic reason why both the acute toxicity and the genetictoxicity were lowered could be
attributed to the degradation of the toxic organicchemicals in land treatment substances.The
contents of extractable organic chemi- cals from three types of industrial wastes fell clearly
after land treatment.The totaldegradation rate of organic substances was 40- 70%. The
degradation rate ofprimary organic chemicals was 50- 90%. It was indicated that land treatment
ofindustrial wastes could get a satisfactory effect,and land treatment would be aprospective
good way to the industrial wastes treatment.
出处
《土壤学报》
CAS
CSCD
北大核心
1995年第3期327-333,共7页
Acta Pedologica Sinica
关键词
工业废渣
土地处理
毒性
化工废弃物
Industrial wastes,Land treatment,Acute
and genetic toxicity
