电镀废水中铜锌铬镍对农业环境的影响-生态与农村环境学报.PDF

农村生态环境　1999, 15( 4) :52—55　　　　　　　　　　　　　　　　　　　　　　Rural Eco-Environ ent 廖金凤　(, 510275) ,CuZnNi 114,CuZnCrNi1237, 0.52. 9, 0.3 8 CuZnCrNi CuZnCrNi CuZn CrNi , Zn Cu Ni Cr Effect of Cu,Zn,Cr and Ni in Electroplating Wastewater on Agricultural Environment. L iao J inf eng (Geography Depart ent, Zhongshan University,GUANGZHOU 510275) :R ur al E co-E nv ir onment , 1999, 15(4): 52 - 55 AbstractElectroplating wastewater flowing into rivers does pollutethe agricultural environ ent. Take for exa ple Pingzhou of Nanhai City, Guangdong Province, the contents of Cu, Zn and Ni in the irrigation water exceeded the standard by 114 ti es, the contents of Cu, Zn, Cr and Niin theriver bed ud by 12 37 ti es, in the soil by 0. 5 2.9 ti es and in the crops by 0. 3 8 ti es. T he pollutant ele ents flowing into therivers deposit quite quickly in the ud, whereas the ele ents going into the soil are ainly accu ulated in the plough layer. Crops absorb uch ore Cu and Zn than Cr and Ni showing the absorption coefficients in such a decreasing sequence as Zn Cu Ni Cr. Key wordselectroplating, heavy etal, Nanhai, Pingzhou, wastewater, agricultural environ ent, effect , 2 CuZnCrNi 2.1 2. 1. 1 1 10 t/d CuZnCrNi 23. 57 g/L 18 14.5 g/L2. 19 g/L18.64 g/L ,3 , 25 c , ,3 k , ,, , 5 k CuZnCrNi 1pH 5. 82 6.47 [ 1] CuZnCrNi 1999 - 04- 26 , 199