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Advanced pond system for dairy‐farm effluent treatment

机译:先进的池塘系统,用于奶牛场废水处理

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Abstract Two‐stage oxidation ponds have traditionally been used for the treatment of dairy‐farm wastewater in New Zealand, but are now considered unsuitable to discharge to waterways. The first full‐scale dairy‐farm advanced pond system (APS), a low‐cost and effective upgrade option for traditional ponds was evaluated over a 2‐year period. The system consisted of an anaerobic pond (AP) (the first pond of traditional oxidation pond systems), a high rate pond (HRP), a pair of algae settling ponds (ASP) and a maturation pond (MP) (which all replace the second pond of traditional systems). APS effluent quality was considerably higher than that of traditional ponds, with respective median effluent concentrations of biological oxygen demand: 43 versus 98 g m?3, total suspended solids: 87 versus 198 g m?3, ammoniacal nitrogen: 39 versus 106 gm?3, total phosphorus: 19 versus 27 g m?3, and Escherichia coli of 918 versus 70 000 MPN/100 ml. APS show great promise for upgrading traditional dairy‐farm oxidation ponds ...
机译:摘要新西兰传统上将二级氧化池用于处理奶牛场废水,但现在认为不适合排放到水道中。在两年的时间内,评估了第一个全面的奶牛农场先进池塘系统(APS),它是传统池塘的低成本有效升级选项。该系统由厌氧池(AP)(传统氧化池系统的第一个池),高速率池(HRP),一对藻类沉降池(ASP)和成熟池(MP)组成(均取代了传统系统的第二个池塘)。 APS废水的质量大大高于传统池塘,废水的生物需氧量的中位数分别为:43和98 gm?3,总悬浮固体:87和198 gm?3,氨氮:39和106 gm?3,总磷:19比27 gm?3,大肠杆菌918比70000 MPN / 100 ml。 APS显示出升级传统奶牛场氧化池的巨大希望...

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