Meeting Ultra-Low Effluent Phosphorus in Small, Cold-Climate WWTFs

Whalley, Michael; Laidlaw, Sarah; Steel, Paula; Shiskowski, Dean M.

doi:10.2175/193864713813525338

Cited by 4 publications

(2 citation statements)

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“…It has been suggested that due to several bi-reactions, the amount of salt required to achieve the desired P removal rate is greater than the stoichiometric ratio and up to double (Whalley et al, 2013). Thus, the solids production associated with chemical dosing may present an interesting sustainability issue.…”

Section: Application Of P-precipitation and The Management Of Solidsmentioning

confidence: 99%

A Review of Phosphorus Removal Technologies and Their Applicability to Small-Scale Domestic Wastewater Treatment Systems

Bunce

Ndam

Ofiţeru

et al. 2018

Front. Environ. Sci.

401

204

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The removal of phosphorus (P) from domestic wastewater is primarily to reduce the potential for eutrophication in receiving waters, and is mandated and common in many countries. However, most P-removal technologies have been developed for use at larger wastewater treatment plants that have economies-of-scale, rigorous monitoring, and in-house operating expertise. Smaller treatment plants often do not have these luxuries, which is problematic because there is concern that P releases from small treatment systems may have greater environmental impact than previously believed. Here P-removal technologies are reviewed with the goal of determining which treatment options are amenable to small-scale applications. Significant progress has been made in developing some technologies for small-scale application, namely sorptive media. However, as this review shows, there is a shortage of treatment technologies for P-removal at smaller scales, particularly sustainable and reliable options that demand minimal operating and maintenance expertise or are suited to northern latitudes. In view of emerging regulatory pressure, investment should be made in developing new or adapting existing P-removal technologies, specifically for implementation at small-scale treatment works.

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Section: Application Of P-precipitation and The Management Of Solidsmentioning

confidence: 99%

A Review of Phosphorus Removal Technologies and Their Applicability to Small-Scale Domestic Wastewater Treatment Systems

Bunce

Ndam

Ofiţeru

et al. 2018

Front. Environ. Sci.

401

204

View full text Add to dashboard Cite

show abstract

“…But they do not refer to an established value yet and can imply P concentrations lower than those achieved by conventional treatment methods. Such terms usually refer to a concentration range between 0.01 and 0.15 mg P/L (Bolton and Menk, 2016; Genz et al., 2004; Langer et al., 2017; USEPA, 2007; Whalley, 2013).…”

Section: Introductionmentioning

confidence: 99%

Adsorption as a technology to achieve ultra-low concentrations of phosphate: Research gaps and economic analysis

Korving²,

et al. 2019

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Eutrophication and the resulting formation of harmful algal blooms (HAB) causes huge economic and environmental damages. Phosphorus (P) from sewage effluent and agricultural run-off has been identified as a major cause for eutrophication. Phosphorous concentrations greater than 100 μg P/L are usually considered high enough to cause eutrophication. The strictest regulations however aim to restrict the concentration below 10 μg P/L. Orthophosphate (or phosphate) is the bioavailable form of phosphorus. Adsorption is often suggested as technology to reduce phosphate to concentrations less than 100 and even 10 μg P/L with the advantages of a low-footprint, minimal waste generation and the option to recover the phosphate. Although many studies report on phosphate adsorption, there is insufficient information regarding parameters that are necessary to evaluate its application on a large scale. This review discusses the main parameters that affect the economics of phosphate adsorption and highlights the research gaps. A scenario and sensitivity analysis shows the importance of adsorbent regeneration and reuse. The cost of phosphate adsorption using reusable porous metal oxide is in the range of $ 100 to 200/Kg P for reducing the phosphate to ultra-low concentrations. Future research needs to focus on adsorption capacity at low phosphate concentrations, regeneration and reuse of both the adsorbent and the regeneration liquid.

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High-performing enhanced biological phosphorus removal (EBPR) utilizing controlled communities of bacteria in novel biocatalyst composites

Lutz

Hlavacek

Gupta

et al. 2023

Bioresource Technology Reports

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Meeting Ultra-Low Effluent Phosphorus in Small, Cold-Climate WWTFs

Cited by 4 publications

References 0 publications

A Review of Phosphorus Removal Technologies and Their Applicability to Small-Scale Domestic Wastewater Treatment Systems

A Review of Phosphorus Removal Technologies and Their Applicability to Small-Scale Domestic Wastewater Treatment Systems

Adsorption as a technology to achieve ultra-low concentrations of phosphate: Research gaps and economic analysis

High-performing enhanced biological phosphorus removal (EBPR) utilizing controlled communities of bacteria in novel biocatalyst composites

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