青岛小珠山水库水环境容量研究

An Analysis and Assessment of the Water Environmental Capacity of Xiao ZhuShan Reservoir of Qingdao

水环境容量是以水环境目标和水体稀释自净规律为依据。水体中污染物的排入,要与水环境容量相适应,如果超出水环境容量,就必须采取保护措施,以保护水体水质不受污染。本文根据水库水环境容量计算方法,采用室内模拟实验确定BOD耗氧系数和CODMn耗氧系数,确定了小珠山水库的水环境容量,并推求出小珠山水库允许排污量。研究结果表明,小珠山水库适合作为城市集中饮用水水源;BOD5和CODMn水环境容量理论允许排放量分别为287 kg/d和347.9 kg/d,但实际允许排放量应保证<71.8 kg/d和86.9 kg/d。

The water environmental capacity is gauged based on the water environment goal and the law of water dilution and purification. The pollutants released to a water body should conlorm to the requirements of the water environmental capacity, other wise some measures must be taken to protect the water body. In this paper, based on the water environmental capacity model for reservoirs, the water environmental capacity of Xiao ZhuShan reservoir is calculated with the BOD and CODM, decay coefficients determined through experimental simulation, furthermore their permitted discharge amounts are also calculated. The results indicate that the water environmental capacities for BOD5 and CODMn of the Xiaozhushan reservoir are 287 kg/d and 347.9 kg/d respectively, but the allowable wastewater amounts should be controlled at less than 71.8 kg/d and 86. 9 kg/d. Only then is the water of Xiaozhushan reservoir fit for drinking.