摘要
本文以模拟实验研究了污水中不同浓度的氰、酚、钒、镍和三种氮素在银川西部砂质淡灰钙土中的残留积累、迁移、净化规律。结果表明,污水中氰化物浓度为0.05ppm和0.5ppm时,净化率分别为42.7％和8.9％;0.5ppm的酚净化率为100％,而5ppm时净化率只有12.8％。钒和镍在土层(60cm)中的残留量分别多于717克/米~2和4216克/米~2,且多分布在表层。三氮几乎不残留,90％以上随水迁移。
By laboratorial simulator, The regularity of residue,migration and purification for cyanide,phenol, Vanadium, nickel and three forms of nitrogen at different concentration in wastewater infiltrating through sandy light sierozem in west part of Yin chuan city was studied. The results showed that purificating rates for Cyanide were 42.7% and 8.9% at the 0.05 ppm and 0.5 ppm in the wastewater respectively and for phenol was 100% at 0.5 ppm and only 12.8% at 5 ppm. The residual vanadium and nickel in the soil(60cm)were more than 717g/m^2 and 4216g/m^2 respectively. Both of them accumulated mainly in the surface soil. More than 90% of nitrogen were migrated with the wastewater, only a little residuum.
出处
《农业环境保护》
CSCD
1989年第4期24-27,23,共5页
Agro-Environmental Protection
