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首页> 外文期刊>Ecological engineering: The Journal of Ecotechnology >Performance of an ecological treatment system at three strengths of dairy wastewater loading
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Performance of an ecological treatment system at three strengths of dairy wastewater loading

机译：生态处理系统在乳品废水负荷的三种强度下的性能

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摘要

Ecological treatment systems, which rely on renewable resources, have successfully treated municipal and industrial effluents with reduced costs compared to conventional methods, but their capacity to treat dairy wastewater is unknown. In order for ecological treatment systems to be practical for agriculture they must be able to treat a significant portion of a dairy's daily wastewater production. In this study, the impact of three strengths of dairy wastewater on effluent water quality was assessed. Three ratios of wastewater and city water—(1) one part wastewater:three parts city water, (2) one part wastewaterrone part city water, and (3) two parts wastewatenone part city water—were each pumped into an ecological treatment system. Influent and effluent water samples were analyzed for PO4-P, TP, TN, NH4-N, NO3-N, total suspended solids (TSS), and carbonaceous biochemical oxygen demand (CBOD5). Influent dairy wastewater volumetric loading rates were much greater than those of municipal wastewater. Regardless of influent wastewater strength, concentrations of all measured variables were significantly reduced between the influent and effluent of the ecological treatment system. At the lowest wastewater strength, PO4-P was reduced 39%, TN 83%, and NH4-N 89%, while at the highest wastewater strength, PO4-P was reduced 41%, TN 79%, and NH4-N 70%. Increased wastewater strength required greater aerobic treatment volume to reduce concentrations of NH4-N and CBOD5.
机译：与传统方法相比，依靠可再生资源的生态处理系统已经以较低的成本成功地处理了市政和工业废水，但是其处理乳品废水的能力尚不得而知。为了使生态处理系统对农业可行，它们必须能够处理奶牛场日常废水生产中的很大一部分。在这项研究中，评估了三种强度的乳制品废水对废水水质的影响。废水和城市用水的三个比率-（1）废水：三部分城市水;（2）一部分–废水中的一部分城市水;和（3）两部分废水处理-部分城市水-分别泵入生态处理系统。分析了进水和出水水样的PO4-P，TP，TN，NH4-N，NO3-N，总悬浮固体（TSS）和含碳生化需氧量（CBOD5）。进水的乳制品废水的体积负荷率远高于市政废水。不论进水废水强度如何，在生态处理系统的进水和出水之间，所有测量变量的浓度均显着降低。在最低废水强度下，PO4-P降低了39％，TN 83％和NH4-N 89％，而在最高废水强度下，PO4-P降低了41％，TN 79％和NH4-N 70％。 。增加废水强度需要更大的需氧处理量，以减少NH4-N和CBOD5的浓度。

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