Treatment of semiconductor wastewater using single-stage partial nitrification and anammox in a pilot-scale reactor

This paper seeks to inform an improved understanding of the energy tradeoff associated with on-site manufacturing water reuse in the U.S. from a lifecycle perspective, in part by developing an analytical framework for understanding when this tradeoff for reuse is beneficial. We survey the literature to assess the current state of reuse and its motives and barriers in the U.S., before synthesizing information from publicly available EPA data on contaminants in U.S. manufacturing wastewaters and technologies for treating them. Using the available data, we derive a set of "ubiquitous contaminants" among the top ten in terms of mass discharged in more than half of U.S. manufacturing subsectors (NAICS 31-33) according to EPA permit data. We also present information on proven treatment trains and their energy requirements. We then compare water quality requirements for specific contaminants in reclaimed water to those characteristic of wastewater streams currently being discharged from manufacturing plants into surface waters to highlight sectors with reuse opportunities that could require little cost to realize, such as primary metals and, to a lesser extent, petroleum and coal products. We conclude by highlighting data limitations that need to be rectified before applying the framework more broadly and discussing how these data gaps could be filled. Better understanding the relationship between energy and water in the context of on-site manufacturing water reuse would allow manufacturers to improve resiliency by reducing regulatory, physical, and reputational risks while lessening their footprint on local watersheds.

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“…, annamox(Liang et al, 2016 Paques Technology B.V., n.d.), and nanotechnologies(Jassby et al, 2018).…”

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confidence: 99%

Characterizing manufacturing wastewater in the United States for the purpose of analyzing energy requirements for reuse

Fuchs

Rao

2021

J of Industrial Ecology

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“…The application of this strategy provides an opportunity to achieve efficient ammonium nitrogen conversion at lowered energy demand, and hence, a substantial reduction in the operating costs [17,18].…”

Section: Energy Optimization By Aeration Strategy Control For Shortcu...mentioning

confidence: 99%

“…One of the most important features is a significant reduction of the energy demand for aeration (~60%) [12]. It is estimated that this strategy led to a major decrease in energy consumption, from 2.4 kWh/kg under conventional process to 1 kWh/kg within partial nitritation/anammox (deammonification) PN/A technology [17,18]. Importantly, the level of overall energy demand within the conventional method is estimated at around 30 kWh/PE•year, which is almost twice higher than that in the deammonification method by 17 kWh/PE•year.…”

Section: Introductionmentioning

confidence: 99%

Mutual Interaction between Temperature and DO Set Point on AOB and NOB Activity during Shortcut Nitrification in a Sequencing Batch Reactor in Terms of Energy Consumption Optimization

Shourjeh¹,

Kowal²,

Drewnowski³

et al. 2020

Energies

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Recently, many wastewater treatment plants (WWTPs) have had to deal with serious problems related to the restrictive requirements regarding the effluent quality, as well as significant energy consumption associated with it. In this situation, mainstream deammonification and/or shortened nitrification-denitrification via nitrite (so-called “nitrite shunt”) is a new promising strategy. This study shows the mechanisms and operating conditions (e.g., dissolved oxygen (DO) concentration, temp.), leading to the complete domination of ammonium oxidizing bacteria (AOB) over nitrite oxidizing bacteria (NOB) under aerobic conditions. Its successful application as shortcut nitrification in the sequencing batch reactor (SBR) technology will represent a paradigm shift for the wastewater industry, offering the opportunity for efficient wastewater treatment, energy-neutral or even energy-positive facilities, and substantial reductions in treatment costs. In this study, under low and moderate temperatures (10–16 °C), averaged DO concentrations (0.7 mg O2/L) were preferable to ensure beneficial AOB activity over NOB, by maintaining reasonable energy consumption. Elevated temperatures (~30 °C), as well as increased DO concentration, were recognized as beneficial for the NOB activity stimulation, thus under such conditions, the DO limitation seems to be a more prospective approach.

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“…Anammox bacteria were reported to preferentially aggregate and form biofilm, flocs and granules (Chen et al, 2010;Trigo et al, 2006;Daverey et al, 2015;Liang et al, 2016;Chen et al, 2017;Wang et al, 2018). Therefore, the degree of aggregation may reflect the activity of anammox process that influences the performance of wastewater treatment.…”

Section: The Relationship Between Anammox Community Granule Size and ...mentioning

confidence: 99%

Nanoarchitectured structure and population dynamics of anaerobic ammonium oxidizing (anammox) bacteria in a wastewater treatment plant

Huang

Chen

Jetten

et al. 2020

Journal of Hazardous Materials

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Treatment of semiconductor wastewater using single-stage partial nitrification and anammox in a pilot-scale reactor

Cited by 27 publications

References 35 publications

Characterizing manufacturing wastewater in the United States for the purpose of analyzing energy requirements for reuse

Characterizing manufacturing wastewater in the United States for the purpose of analyzing energy requirements for reuse

Mutual Interaction between Temperature and DO Set Point on AOB and NOB Activity during Shortcut Nitrification in a Sequencing Batch Reactor in Terms of Energy Consumption Optimization

Nanoarchitectured structure and population dynamics of anaerobic ammonium oxidizing (anammox) bacteria in a wastewater treatment plant

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