【摘要】 通过对广西沿海3种养殖模式72个养殖池塘站位的外排水进行监测和分析,查明了13项主要污染物指标的达标率、超标倍数及分布特征。结果表明,仅有2个站位全部指标达到地方标准要求,污染物指标达标率依次为Cu>Zn>硫化物>氨氮>TN=SS=p H>总余氯>无机氮>总磷>BOD5>活性磷酸盐>CODMn;活性磷酸盐、TP、无机氮、氨氮和TN超标倍数较高;氮、磷类污染物浓度具有较强的相关性;外排水污染物浓度受养殖方法影响明显,其中对虾养殖模式变化最大。更多还原

【Abstract】 Through monitoring and analysis on the wastewater from coastal 72 pond breeding stations of three cultivation patterns in Guangxi,this article had identified the target rates,exceed multiples and distribution characteristics of 13 major pollutants indicators. The results showed: only two stations had reached local standard requirements of all indicators and the target rates followed by Cu > Zn > sulfide > NH₃-N > TN = SS = p H > total chlorine > TIN > TP > BOD₅> PO₄-P > COD_Mn; exceed multiples of PO₄-P,TP,TIN,NH₃-N and TN were higher; concentrations of nitrogen and phosphorus pollutants had a strong correlation; drainage pollutant concentration were affected apparently by breeding method,with the largest changes on shrimp breeding.更多还原