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Nutrient Trading Between Wastewater Treatment Plants in the Baltic Sea Region

机译:波罗的海地区废水处理厂的营养交易

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摘要

We analyze nutrient trading between wastewater treatment plants as a tool for reducing nitrogen and phosphorus loads in the Baltic Sea. We build a numerical model and demonstrate that the goals of the Baltic Sea Action Plan can be achieved to a fairly large extent by nutrient trading between wastewater treatment plants. It is also a relatively inexpensive way to reduce nutrient loads. Furthermore, a nutrient trading scheme with properly designed initial allocations enables an evening out of the cost burden between wastewater treatment plants. We study alternative types of nutrient trading schemes and show that when trading is based on nitrogen equivalents, phosphorus abatement reaches its capacity limits. Moreover, we illustrate that transaction costs clearly increase the level of nitrogen abatement costs but only slightly the level of phosphorus abatement costs. Nevertheless, even though transaction costs reduce benefits from trading relative to command-and-control, huge cost differences between the installations create space for trading.
机译:我们分析废水处理厂之间的营养交易作为减少波罗的海中氮和磷荷载的工具。我们建立一个数字模型,并证明波罗的海行动计划的目标可以通过废水处理厂之间的营养交易相当大。它也是减少营养负荷的相对便宜的方式。此外,具有适当设计的初始分配的营养交易方案使得一个晚上摆脱污水处理厂之间的成本负担。我们研究替代类型的营养交易计划,表明,当交易基于氮当量时,磷减少率达到其容量限制。此外,我们说明交易成本显然增加了氮气减排成本的水平,但只有略微略微略微略有磷成本水平。然而,尽管交易成本减少了交易相对于指挥和控制的益处,但安装之间的巨大成本差异会为交易创造空间。

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