Article
Environmental Sciences
Xiuwen Li, Aimin Li, Zekai Li, Hongfang Sun, Peng Shi, Qing Zhou, Chendong Shuang
Summary: The study found that M80 resin has the best removal efficiency for OMPs in drinking water treatment, but it is vulnerable to the presence of humic acid. In contrast, D205, D213, and NDMP-3 resins are less affected by humic acid. Additionally, D205 has the highest efficiency in reducing DBPs and can be a selective resin for areas with high bromide content in drinking water treatment.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Green & Sustainable Science & Technology
Hailan Yang, Shujing Ye, Jiajia Wang, Han Wang, Ziwei Wang, Qiang Chen, Wenjun Wang, Ling Xiang, Guangming Zeng, Xiaofei Tan
Summary: Carbon materials are widely used in water treatment progress, showing good adsorption and catalytic performance in removing organic matter and its derived disinfection by-products at different stages.
JOURNAL OF CLEANER PRODUCTION
(2021)
Article
Environmental Sciences
Xi-Xi Wang, Bao-Ming Liu, Min-Feng Lu, Yu-Ping Li, Ying-Ying Jiang, Ming-Xing Zhao, Zhen-Xing Huang, Yang Pan, Heng-Feng Miao, Wen-Quan Ruan
Summary: This study analyzed the physicochemical properties, components, and disinfection byproduct formation potentials (DBPFPs) of algal organic matter (AOM) and natural organic matter (NOM) in a typical eutrophic lake. Results showed that AOM had higher organic nitrogen content and exhibited higher DBPFPs, especially for nitrogenous DBPFP. The study also found that the molecular weight distribution between AOM and NOM was similar, but AOM had higher concentrations of building blocks while NOM had higher concentrations of biopolymers and humics (HS).
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2021)
Article
Engineering, Environmental
Yun Kyung Lee, Ha-Young Yoo, Kyung-Seok Ko, Wei He, Tanju Karanfil, Jin Hur
Summary: This study tracks the spectroscopic signatures of MPs in sandy subsurface systems and explores their potential to form disinfection byproducts (DBPs). The addition of MPs increases the amount of dissolved organic matter (DOM) during infiltration, with UV-irradiated MPs having a more pronounced effect. Two fluorescent components, C1 and C2, are identified, with C1 being more predominant. Environmental interferences such as biodegradation and mineral adsorption do not fully explain the spectroscopic signatures of MP-DOM in the infiltration process.
Article
Engineering, Environmental
Zhi-Min Song, Lu-Lin Yang, Yao Lu, Chao Wang, Jun-Kun Liang, Ye Du, Xin-Zheng Li, Qing Hu, Yun-Tao Guan, Qian-Yuan Wu
Summary: This study utilized high resolution mass spectrometry to investigate the impact of UV irradiation, chlorination, and UV/chlorination on NOM transformation and DBP formation. It was found that chlorination and UV/chlorination had a greater influence on NOM molecular composition compared to UV irradiation, and UV/chlorination formed more saturated DBPs than chlorination.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Environmental Sciences
Hongyan Zhai, Shengzi Cheng, Liangyu Zhang, Wenjing Luo, Yanan Zhou
Summary: This study investigates the formation of disinfection byproducts (DBPs) during chlorination and chloramination of algal organic matter (AOM) from four algal species. It identifies the factors that affect the types and yields of DBPs under different conditions. The results show that the concentrations of disinfectant, pH, and bromide can all influence the formation of DBPs during chlorination and chloramination processes.
Article
Engineering, Environmental
Chuze Chen, Xiating Zhao, Haoran Chen, Mengting Li, Liu Cao, Yuting Wang, Qiming Xian
Summary: Environment disinfection effectively reduces transmission of SARS-CoV-2 but may generate toxic disinfection byproducts (DBPs) when elevated chlorine levels are released into surface water. This study investigates the impact of solar photolysis of free available chlorine (FAC) on DBP formation and finds that solar photolysis of FAC leads to higher formation of DBPs compared to dark chlorination. Various factors such as pH, HCO3-, and reactive species influence the formation of DBPs during solar photolysis of FAC.
Article
Engineering, Environmental
Moshan Chen, Carter A. Rholl, Shane L. Persaud, Zixuan Wang, Zhen He, Kimberly M. Parker
Summary: During harmful algal blooms (HABS), permanganate can be used as a preoxidant to improve drinking water quality by removing algal cells and degrading algal toxins. However, permanganate oxidation also alters the precursors of disinfection byproducts (DBPs) from intracellular algal organic matter (AOM), affecting DBP formation during disinfection. This study evaluated the impacts of permanganate preoxidation on DBP generation during chlorination and chloramination of AOM. The results showed that permanganate preoxidation increased the formation of certain DBPs and decreased others, indicating a complex interaction between permanganate and AOM.
Article
Environmental Sciences
L. Kurajica, M. Ujevic Bosnjak, A. S. Kinsela, M. Bieroza, J. Stiglic, T. D. Waite, K. Capak, Z. Romic
Summary: Mixing high arsenic groundwater with arsenic-free surface water is a low-cost method to address arsenic contamination in drinking water. This study investigated the effects of different mixing ratios on water quality in a water distribution system in Croatia and found that the mixing ratios affected the composition of organic matter, concentrations of disinfection byproducts and metals.
Review
Chemistry, Analytical
Yu Chen, Meng Zou, Yan Huang, Ziyan Xie, Haozhe Liu, Qian Wu, Wenmei Jiao, Junlang Qiu, Guang Huang, Xin Yang
Summary: Drinking water disinfection can effectively inhibit the spread of waterborne diseases. However, disinfection byproducts (DBPs) are formed and the identification of toxic unknown DBPs is crucial for drinking water safety. Mass spectrometry methods have been developed to detect unknown DBPs and this review summarizes the methods used in the past 5 years, including various scanning techniques for different types of mass spectrometry. Future research directions are also discussed.
TRAC-TRENDS IN ANALYTICAL CHEMISTRY
(2023)
Article
Environmental Sciences
Lingfei Ma, Fangyuan Peng, Qingqing Dong, Haipu Li, Zhaoguang Yang
Summary: The main biochemical components in Algogenic organic matter (AOM) were analyzed to investigate their contributions to the formation of disinfection byproducts (DBPs). The results showed that proteins were the key contributor to DBPs in AOM. Therefore, targeted removal of proteins before the chlorination process can effectively reduce DBPs in AOM.
Article
Engineering, Environmental
Jiadong Peng, Huang Huang, Yu Zhong, Ran Yin, Qianyuan Wu, Chii Shang, Xin Yang
Summary: This study investigated the transformation of dissolved organic matter (DOM) and the removal of nitrogenous disinfection byproduct (N-DBP) precursors during different types of biological wastewater treatment processes. The results showed that DOM fractions with different molecular weights exhibited varying degrees of biodegradability, with smaller molecules being more difficult to remove. Complete nitrification was found to be beneficial in removing small amino sugar-like and protein-like molecules, but the removal of haloacetonitrile (HAN) precursors was challenging. The abundance of low-molecular-size protein-like substances was significantly correlated with the formation potential of halonitromethane (HNM), N-nitrosamine (NA), and total N-nitrosamine (TONO) in post-chloramination.
Article
Engineering, Environmental
Hoda Tafvizi, Tahir Husain
Summary: This study investigated the effects of coagulant dosage, fast mixing power, and settling time on haloacetic acids and trihalomethanes, aiming to provide feasible solutions for DBPs management. The predictive models generated through experiments validated on natural and synthetic water samples showed a significant reduction in energy consumption and coagulant dosage post-optimization. The study highlights the importance of multivariate optimization in achieving efficient water treatment processes.
ENVIRONMENTAL ENGINEERING SCIENCE
(2022)
Article
Engineering, Environmental
Melanie Vines, Jaquice Boyd, Jeff Cochran, Leigh G. Terry
Summary: Disinfection is crucial in water treatment to prevent waterborne illnesses, but it can lead to the formation of carcinogenic disinfection byproducts. The use of magnetic ion exchange resin (MIEX) as a pretreatment has shown to effectively remove organics and reduce these byproducts. A pilot-scale water treatment plant employing MIEX treatment was compared to a full-scale treatment without MIEX. The results showed significant reduction in the formation of THMs and HAAs with MIEX treatment, as well as additional benefits.
JOURNAL OF WATER PROCESS ENGINEERING
(2023)
Article
Environmental Sciences
Huan Wu, Kunling Long, Yujie Sha, Du Lu, Ying Xia, Yan Mo, Qiyuan Yang, Weiwei Zheng, Mengting Yang, Xiao Wei
Summary: This study investigated the distribution and formation of halobenzoquinones in drinking water in China, comparing their cytotoxicity and genotoxicity, and analyzing the correlation of their toxicity with physicochemical parameters. It was found that the concentration of HBQs was influenced by water treatment methods and water quality parameters, with certain factors being negatively correlated with the cytotoxicity of the compounds.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Engineering, Environmental
Nicolas M. Peleato, Robert C. Andrews
WATER SCIENCE AND TECHNOLOGY-WATER SUPPLY
(2015)
Article
Environmental Sciences
Nicolas M. Peleato, Michael McKie, Lizbeth Taylor-Edmonds, Susan A. Andrews, Raymond L. Legge, Robert C. Andrews
Article
Engineering, Environmental
Vivek A. Nemani, Lizbeth Taylor-Edmonds, Nicolas M. Peleato, Robert C. Andrews
WATER SCIENCE AND TECHNOLOGY-WATER SUPPLY
(2016)
Article
Spectroscopy
Nicolas M. Peleato, Raymond L. Legge, Robert C. Andrews
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2017)
Article
Engineering, Environmental
Nicolas M. Peleato, Raymond L. Legge, Robert C. Andrews
Article
Engineering, Environmental
Nicolas M. Peleato, Raymond L. Legge, Robert C. Andrews
Article
Engineering, Civil
Nicolas M. Peleato, John Armour, Robert C. Andrews
JOURNAL OF WATER SUPPLY RESEARCH AND TECHNOLOGY-AQUA
(2014)
Article
Engineering, Environmental
Chun Kei Tang, Nicolas M. Pelento, Pierre R. Berube, Robert C. Andrews
JOURNAL OF WATER PROCESS ENGINEERING
(2019)
Review
Biotechnology & Applied Microbiology
Atefeh Aliashrafi, Yirao Zhang, Hannah Groenewegen, Nicolas M. Peleato
Summary: Data-driven models offer significant opportunities to optimize drinking water treatment and water resource management, but also present challenges such as increased uncertainty in model validity and difficulties in interpreting model behavior. Successful implementation of these models requires validation and scrutiny of decision-making logic.
REVIEWS IN ENVIRONMENTAL SCIENCE AND BIO-TECHNOLOGY
(2021)
Article
Environmental Studies
Hadisu Alhassan, Nicolas Peleato, Rehan Sadiq
Summary: Choosing the right mining technique from numerous alternatives and criteria is challenging. This paper reviews common mining alternatives and criteria, and proposes a methodology using fuzzy AHP and fuzzy TOPSIS to evaluate and select the optimal mining technique.
Article
Agricultural Engineering
Hirra Zafar, Nicolas Peleato, Deborah Roberts
Summary: The present study investigated the use of bioaugmentation and in-situ fungal mash in microbial fuel cells (MFC) for the biodegradation of waste fruit. The results showed that bioaugmentation with Cellulomonas fimi and Bacillus subtilis separately and in combination resulted in high removal of chemical oxygen demand, carbohydrates, and solids. Cellulomonas fimi alone achieved significantly higher chemical oxygen demand removal compared to the control treatment. Efficient carbohydrates removal (>90%) was observed with Cellulomonas fimi alone and in combination with Bacillus subtilis. Fungal pre-treatment also showed high organics removal, but with lower coulombic efficiency compared to the Cellulomonas fimi and Bacillus subtilis augmented reactor.
BIOMASS & BIOENERGY
(2023)
Article
Engineering, Environmental
Ye Z. Yang, Nicolas M. Peleato, Raymond L. Legge, Robert C. Andrews
ENVIRONMENTAL SCIENCE-WATER RESEARCH & TECHNOLOGY
(2019)
Article
Engineering, Civil
Nicolas M. Peleato, Raymond L. Legge, Robert C. Andrews
JOURNAL AMERICAN WATER WORKS ASSOCIATION
(2017)
Article
Environmental Sciences
Nicolas M. Peleato, Balsher Singh Sidhu, Raymond L. Legge, Robert C. Andrews