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Struvite formation in wastewater treatment plants: opportunities for nutrient recovery

机译:废水处理厂中鸟粪石的形成:营养回收的机会

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摘要

Nutrient removal from wastewater discharges is an increasing challenge for water authorities, as regulatory authorities tighten discharge standards to avoid eutrophication problems in receiving waters. Significant costs are associated with the extra treatment processes required to meet these new discharge standards. The most widely used technologies for nutrient removal include biological nitrification/denitrification for nitrogen removal and metal salf precipitation for phosphorus removal. Both approaches result in the nutrient being made unrecoverable for possible use as a fertiliser.
机译:从废水排放中去除营养物对水务部门来说是一个日益严峻的挑战,因为监管机构收紧了排放标准,以避免接收水的富营养化问题。满足这些新排放标准所需的额外处理过程涉及大量成本。最广泛使用的营养去除技术包括生物硝化/硝化去除氮和金属沉淀去除磷。两种方法都导致营养素无法回收,无法用作肥料。

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