Determination of the Relationship between the Energy Content of Municipal Wastewater and Its Chemical Oxygen Demand

Ziye Dai; Elizabeth S. Heidrich; Jan Dolfing; Adam P. Jarvis

doi:10.1021/acs.estlett.9b00253

Determination of the Relationship between the Energy Content of Municipal Wastewater and Its Chemical Oxygen Demand

Ziye Dai, Elizabeth S. Heidrich^*, Jan Dolfing, Adam P. Jarvis

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

40 Citations (Scopus)

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Abstract

Quantitatively evaluating progress toward energy neutral, or even energy positive, wastewater treatment necessitates reliable data on the intrinsic energy content of the wastewater. It has long been assumed that the amount of energy in wastewater is directly related to its chemical oxygen demand (COD), but the convoluted method for measuring the wastewater energy content has meant that a reliable, statistically robust relationship between COD and energy has never been drawn. In this research, we used a new drying method and analyzed a set of 107 municipal wastewater samples, with a range of COD values from 16.4 to 1151 mg/L. The results revealed a strong correlation between COD and energy content of 16.1 kJ/g of COD (p < 0.001). Reliable predictions of a wastewater's energy content can now be made on the basis of the COD measurement alone.

Original language	English
Pages (from-to)	396-400
Number of pages	5
Journal	Environmental Science and Technology Letters
Volume	6
Issue number	7
Early online date	1 May 2019
DOIs	https://doi.org/10.1021/acs.estlett.9b00253
Publication status	Published - 9 Jul 2019
Externally published	Yes

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title = "Determination of the Relationship between the Energy Content of Municipal Wastewater and Its Chemical Oxygen Demand",

abstract = "Quantitatively evaluating progress toward energy neutral, or even energy positive, wastewater treatment necessitates reliable data on the intrinsic energy content of the wastewater. It has long been assumed that the amount of energy in wastewater is directly related to its chemical oxygen demand (COD), but the convoluted method for measuring the wastewater energy content has meant that a reliable, statistically robust relationship between COD and energy has never been drawn. In this research, we used a new drying method and analyzed a set of 107 municipal wastewater samples, with a range of COD values from 16.4 to 1151 mg/L. The results revealed a strong correlation between COD and energy content of 16.1 kJ/g of COD (p < 0.001). Reliable predictions of a wastewater's energy content can now be made on the basis of the COD measurement alone.",

author = "Ziye Dai and Heidrich, \{Elizabeth S.\} and Jan Dolfing and Jarvis, \{Adam P.\}",

year = "2019",

month = jul,

day = "9",

doi = "10.1021/acs.estlett.9b00253",

language = "English",

volume = "6",

pages = "396--400",

journal = "Environmental Science and Technology Letters",

issn = "2328-8930",

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}

TY - JOUR

T1 - Determination of the Relationship between the Energy Content of Municipal Wastewater and Its Chemical Oxygen Demand

AU - Dai, Ziye

AU - Heidrich, Elizabeth S.

AU - Dolfing, Jan

AU - Jarvis, Adam P.

PY - 2019/7/9

Y1 - 2019/7/9

N2 - Quantitatively evaluating progress toward energy neutral, or even energy positive, wastewater treatment necessitates reliable data on the intrinsic energy content of the wastewater. It has long been assumed that the amount of energy in wastewater is directly related to its chemical oxygen demand (COD), but the convoluted method for measuring the wastewater energy content has meant that a reliable, statistically robust relationship between COD and energy has never been drawn. In this research, we used a new drying method and analyzed a set of 107 municipal wastewater samples, with a range of COD values from 16.4 to 1151 mg/L. The results revealed a strong correlation between COD and energy content of 16.1 kJ/g of COD (p < 0.001). Reliable predictions of a wastewater's energy content can now be made on the basis of the COD measurement alone.

AB - Quantitatively evaluating progress toward energy neutral, or even energy positive, wastewater treatment necessitates reliable data on the intrinsic energy content of the wastewater. It has long been assumed that the amount of energy in wastewater is directly related to its chemical oxygen demand (COD), but the convoluted method for measuring the wastewater energy content has meant that a reliable, statistically robust relationship between COD and energy has never been drawn. In this research, we used a new drying method and analyzed a set of 107 municipal wastewater samples, with a range of COD values from 16.4 to 1151 mg/L. The results revealed a strong correlation between COD and energy content of 16.1 kJ/g of COD (p < 0.001). Reliable predictions of a wastewater's energy content can now be made on the basis of the COD measurement alone.

UR - https://www.scopus.com/pages/publications/85065894799

U2 - 10.1021/acs.estlett.9b00253

DO - 10.1021/acs.estlett.9b00253

M3 - Article

AN - SCOPUS:85065894799

SN - 2328-8930

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EP - 400

JO - Environmental Science and Technology Letters

JF - Environmental Science and Technology Letters

IS - 7

ER -

Determination of the Relationship between the Energy Content of Municipal Wastewater and Its Chemical Oxygen Demand

Abstract

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