Xia He

Works (7)

Updated: July 14th, 2023 21:18

2017 journal article

A critical review of fat, oil, and grease (FOG) in sewer collection systems: Challenges and control

Critical Reviews in Environmental Science and Technology, 47(13), 1191–1217.

By: X. He n, F. de los Reyes n  & J. Ducoste n 

Contributors: X. He n, F. Reyes  n & J. Ducoste n 

author keywords: Fat; oil; grease (FOG); sewer blockage; sanitary sewer overflows (SSOs)
UN Sustainable Development Goal Categories
6. Clean Water and Sanitation (OpenAlex)
Sources: Web Of Science, ORCID, NC State University Libraries, Crossref
Added: August 6, 2018

2017 journal article

Steam Application to Destroy Foam-Forming Bacteria in Activated Sludge Systems

Journal of Environmental Engineering, 143(5), 06017001.

By: L. Cubbage, P. Pitt*, A. Stone*, X. He n & F. L. de los Reyes III

Contributors: L. Cubbage, P. Pitt*, A. Stone*, X. He n & F. Reyes  n

UN Sustainable Development Goal Categories
Sources: Web Of Science, ORCID, NC State University Libraries, Crossref
Added: August 6, 2018

2016 journal article

Quantifying in situ growth rate of a filamentous bacterial species in activated sludge using rrna:rdna ratio

FEMS Microbiology Letters, 363(22), fnw255.

By: V. Nguyen*, X. He n & F. Reyes  n

Contributors: V. Nguyen*, X. He n & F. Reyes  n

Ed(s): J. Kreft

author keywords: growth rate; filament; Sphaerotilus natans; rRNA:rDNA ratio; activated sludge; filamentous bulking
MeSH headings : DNA Primers / genetics; DNA, Bacterial / genetics; DNA, Ribosomal / analysis; DNA, Ribosomal / genetics; RNA, Bacterial / genetics; RNA, Ribosomal, 16S / analysis; RNA, Ribosomal, 16S / genetics; Real-Time Polymerase Chain Reaction; Sewage / microbiology; Sphaerotilus / genetics; Sphaerotilus / growth & development; Water Purification
TL;DR: A method to quantify the in situ specific growth rate of Sphaerotilus natans (a model filament) in activated sludge using the species-specific 16S rRNA:rDNA ratio is developed. (via Semantic Scholar)
UN Sustainable Development Goal Categories
6. Clean Water and Sanitation (Web of Science; OpenAlex)
Sources: Web Of Science, ORCID, NC State University Libraries, Crossref
Added: August 6, 2018

2016 journal article

Shifts in microbial communities in bioaugmented grease interceptors removing fat, oil, and grease (FOG)

Applied Microbiology and Biotechnology, 100(16), 7025–7035.

By: X. He n, M. So n & F. de los Reyes n 

Contributors: X. He n, M. So n & F. Reyes  n

author keywords: Grease interceptors; Microbial community; Bioaugmentation; Fat, oil, and grease(FOG); T-RFLP; Clone library
MeSH headings : Bacteria / genetics; Bacteria / metabolism; Bioreactors; DNA, Bacterial / genetics; Fats / metabolism; Gene Library; Oils / metabolism; Polymorphism, Restriction Fragment Length; RNA, Ribosomal, 16S / genetics; Sewage / microbiology; Waste Disposal, Fluid; Water Purification / methods
TL;DR: Understanding the shifts due to bioaugmentation will result in more informed assessments of the benefits of bioadditives on FOG removal in GIs as well as the effects on downstream sewer lines. (via Semantic Scholar)
UN Sustainable Development Goal Categories
2. Zero Hunger (OpenAlex)
15. Life on Land (Web of Science)
Sources: Web Of Science, ORCID, NC State University Libraries, Crossref
Added: August 6, 2018

2013 journal article

Mechanisms of Fat, Oil and Grease (FOG) deposit formation in sewer lines

WATER RESEARCH, 47(13), 4451–4459.

By: X. He n, F. Reyes  n, M. Leming n, L. Dean n, S. Lappi n & J. Ducoste n 

Contributors: X. He n, F. Reyes  n, M. Leming n, L. Dean n, S. Lappi n & J. Ducoste n 

author keywords: Sanitary sewer overflows (SSOs); Fat, Oil and Grease (FOG) deposits; Free fatty acids (FFAs); Calcium; FOG deposit formation; Sewer lines
MeSH headings : Calcium / analysis; Fats / analysis; Fatty Acids / analysis; Hydrogen-Ion Concentration; Oils / analysis; Sewage / chemistry; Spectroscopy, Fourier Transform Infrared; Surface Properties; Time Factors
TL;DR: Tests showed that calcium, the dominant metal in FOG deposits, can be released from concrete surfaces under low pH conditions and contribute to the formation process, and a comprehensive model was proposed for the mechanisms of FOG deposit formation in sewer systems. (via Semantic Scholar)
UN Sustainable Development Goal Categories
6. Clean Water and Sanitation (OpenAlex)
Sources: Web Of Science, ORCID, NC State University Libraries
Added: August 6, 2018

2012 journal article

Physico-chemical Characterization of Grease Interceptors with and without Biological Product Addition

WATER ENVIRONMENT RESEARCH, 84(3), 195–201.

By: X. He n, J. Osborne n & F. Reyes  n

Contributors: X. He n, J. Osborne n & F. De Los Reyes III

author keywords: grease interceptor; fats, oils and grease (FOG); bioaugmentation; sanitary sewer overflow (SSO)
MeSH headings : Drainage, Sanitary; Fats / chemistry; Sewage / chemistry; Waste Disposal, Fluid; Water Pollutants, Chemical / analysis; Water Pollutants, Chemical / chemistry; Water Purification
TL;DR: Comparison of specific individual treated and untreated cycles show a positive effect due to the addition of product, and combined data did not show lower FOG concentrations in the GI outlet compared to the combined data for all untreated cycles. (via Semantic Scholar)
UN Sustainable Development Goal Categories
Sources: Web Of Science, ORCID, NC State University Libraries
Added: August 6, 2018

2011 journal article

Evidence for Fat, Oil, and Grease (FOG) Deposit Formation Mechanisms in Sewer Lines

ENVIRONMENTAL SCIENCE & TECHNOLOGY, 45(10), 4385–4391.

By: X. He n, M. Iasmin n, L. Dean n, S. Lappi n, J. Ducoste n  & F. Reyes  n

Contributors: X. He n, M. Iasmin n, L. Dean n, S. Lappi n, J. Ducoste n  & F. Reyes  n

MeSH headings : Dietary Fats / analysis; Drainage, Sanitary; Environmental Monitoring; Food Industry; Industrial Waste / analysis; Sewage / analysis; Sewage / chemistry; Spectroscopy, Fourier Transform Infrared; Water Pollutants, Chemical / analysis
TL;DR: It is proposed that the formation of FOG deposits occurs from the aggregation of excess calcium compressing the double layer of free fatty acid micelles and a saponification reaction between aggregated calcium and free fatty acids. (via Semantic Scholar)
UN Sustainable Development Goal Categories
6. Clean Water and Sanitation (OpenAlex)
Sources: Web Of Science, ORCID, NC State University Libraries
Added: August 6, 2018

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