摘要
堆制处理工艺是处理油污土壤的一种强化的生物处理工艺 .通过实验室实验 ,结果表明 :原油降解菌剂投加量 6× 10 12个 (CFU) kg(土壤 )、营养物投加量为使土壤中C∶N∶P =10 0∶2 5∶0 2 5、土壤含水量为饱和含水量的 30 %— 70 %、通风量 14 0mL s为适宜处理条件 ,此时 ,处理 2个月 ,油去除率在 5 0 %以上 .在油污土壤中添加的降解菌和营养物种类、数量完全相同时 ,堆制处理效率明显高于生物耕翻处理效率 ;在相同处理时间内 ,堆制处理时油去除率可比生物耕翻处理时提高 10 %以上 .在处理过程中 。
Composting treatment technology is an enhanced biological treatment technology.By laboratory testing,the results show that the adding amount of crude oil degrading bacteria is 6?mL/kg,of nutriment is making C∶N∶P=100∶2 5∶0 25 in the soil,water content is 30%—70% of saturation water content,and appropriate ventilation amount is 140?mL/s,at this condition, oil removed rate is up to 50%. Adding totally identical nutriments and degrading bacteria either on kind or on amount,efficiency of composting treatment is obviously higher than one of tilling treatment; During the same treatment time,oil removed rate of composting treatment is higher over 10% than one of tilling treatment. During the treatment,most saturation hydrocarbon and aromatic hydrocarbon was degraded.
出处
《环境科学学报》
CAS
CSCD
北大核心
2002年第3期405-407,共3页
Acta Scientiae Circumstantiae
基金
中国石油天然气股份公司"九五"科技工程项目 (项目编号 :970 6 0 7 5 3)
