Article
Environmental Sciences
Xing Gao, Weiying Feng, Jingtian Zhang, Hanxiao Zhang, Shouliang Huo
Summary: In this study, Cu2+ doped biochar composites (Cu-BCs) were successfully fabricated for in-situ inactivation of Microcystis aeruginosa and simultaneous removal of microcystin-LR (MC-LR). The Cu-BC-2.5 exhibited the best algae inactivation performance with a lowest EC50 value of 0.34 mg/L and highest degradation efficiency of 8.31 g/g. The Cu-BC-2.5 maintained good inactivation performance in the near-neutral pH, presence of humic acid and salts. The synergistic effect between biochar and Cu2+ contributed to the excellent inhibitory effect.
ENVIRONMENTAL POLLUTION
(2023)
Review
Environmental Sciences
Qingyun Zhai, Lili Song, Xiyan Ji, Yueshu Yu, Jing Ye, Wenwu Xu, Meifang Hou
Summary: This article reviews the application of advanced oxidation technology in water treatment, providing theoretical reference and support for the removal of dominant species of cyanobacteria blooms.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Environmental Sciences
Hao Yan, Qin Li, Bo Chen, Mei Shi, Tingting Zhang
Summary: The microorganisms and allelochemicals in Pontederia cordata planting water may have a synergistic inhibitory effect on algae. A study investigated the growth and feeding characteristics of Poterioochromonas malhamensis, an algae-inhibiting organism. The growth and feeding of P. malhamensis were influenced by environmental factors and the state of its prey.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Environmental Sciences
Shiquan Sun, Qingxin Tang, Taiping Yu, Yang Gao, Wei Zhang, Lean Zhou, Hosam Elhegazy, Kai He
Summary: A floating photocatalyst was successfully constructed by loading a specific nanocomposite onto a modified polyurethane sponge, which achieved high removal efficiency of Microcystis aeruginosa under visible light. The catalyst could be reused and its performance was influenced by loading content of nanoparticles, algae density, and concentration of natural organic matters. The physiological characteristics of algae cells were severely affected during the photocatalytic process, leading to their death. The study proposed a possible photocatalytic inactivation mechanism of algae cells.
ENVIRONMENTAL RESEARCH
(2022)
Article
Environmental Sciences
Erika L. Addison, Kyle T. Gerlach, Charles D. Spellman, Grace Santilli, Alyson R. Fairbrother, Zachary Shepard, Jeanine D. Dudle, Joseph E. Goodwill
Summary: Fe(VI) as an alternative oxidant can lyse algal cells and potentially further oxidize released organic matter in waters containing Microcystis aeruginosa. Fe(VI) pre-oxidation may help decrease the formation of nitrogenated disinfection byproducts. However, further research is needed to understand the fate of the resulting organic matter when using Fe(VI) in treatment processes.
Article
Environmental Sciences
Yitian Yu, Qi Zhang, Guangfu Liu, Yu Deng, Jian Kang, Fan Zhang, Tao Lu, Liwei Sun, Haifeng Qian
Summary: This study investigated the acute neurotoxicity of Microcystis aeruginosa on zebrafish and found that it seriously damaged neurotransmitter conduction in the nervous system and brain information storage and transmission, making zebrafish more susceptible to neurological diseases. The research offers a new perspective on the neurotoxicity risk of cyanobacterial blooms.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Engineering, Environmental
Yazhou Peng, Xiongwei Yang, Bozhi Ren, Zhi Zhang, Xinping Deng, Wei Yin, Saijun Zhou, Siyuan Yang
Summary: Algal blooms are a significant environmental issue that impacts the water quality of drinking water treatment plants. This study examined the effects of different ultrasonic methods on Microcystis aeruginosa and the enhancement of drinking water treatment processes. The results showed that the removal rate of algae cells increased over time, with static ultrasound being more effective than dynamic ultrasound. However, dynamic ultrasound radiation resulted in less release of algae organics and toxins. Scanning electron microscope and transmission electron microscope analyses revealed that ultrasonic radiation damaged parts of the cell structure but not the integrity of the algae cells' membrane and wall. The use of 740 kHz ultrasonic waves significantly improved the removal efficiency of algae cells in sedimentation tanks, reduced the treatment pressure of the filter, and released fewer algae cell substances, thus lowering the risk of disinfection byproduct generation. This study is highly significant in the application of ultrasound in water purification technology and ensuring water quality safety.
JOURNAL OF WATER PROCESS ENGINEERING
(2023)
Article
Environmental Sciences
Yudie Zeng, Jiayu Wang, Chunyan Yang, Mengyue Ding, Paul B. Hamilton, Xiaohui Zhang, Caiyun Yang, Lei Zhnag, Xianzhu Dai
Summary: The study revealed that a strain of Streptomyces globisporus, designated G9, exhibited high algicidal activity against Microcystis aeruginosa through cell-to-cell contact, affecting key gene expression and microcystin-LR content. G9 is a promising candidate for exploring cyanobacteria-bacteria interactions and developing novel strategies to control Cyanobacterial harmful algal blooms.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Engineering, Environmental
Keun-Young Park, Su-Young Choi, Sun-kyung Ahn, Ji-Hyang Kweon
Summary: Algae exhibit varying disinfection by-product formation potential (DBPFP) depending on the characteristics of the algogenic organic matter (AOM) released during growth. Factors such as growth phase and PAC adsorption efficiency influence DBPFP. UV254 shows strong correlations with DBPFP and can be used as an alternative analytical tool for rapid determination of M. aeruginosa DBPFPs.
JOURNAL OF HAZARDOUS MATERIALS
(2021)
Article
Engineering, Chemical
Shumin Yang, Mengyi Wu, Lian Hou, Shuiliu Yu, Yulin Tang
Summary: The presence of algae and their derivatives in drinking water sources poses a significant threat to water quality. This study focused on the dehydration of M. aeruginosa and analyzed the effect of ferrate (VI) on the floc suspension and dehydration efficiency of algae cells. The results showed that a dosage of 5.0 mg/L of ferrate (VI) was the most effective in terms of increasing the removal rate of dissolved organic matter and enhancing the dehydration capacity of algae cells. The mechanism of ferrate (VI) on algae dehydration was also verified.
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
Article
Food Science & Technology
Katherine E. Greenstein, Arash Zamyadi, Eric C. Wert
Summary: Standardization and validation of alternative cell lysis methods are necessary for quantifying total cyanotoxins. This study evaluated five cell lysis methods on laboratory-cultured Microcystis aeruginosa cells and found that probe sonication, microwave, and Abraxis QuikLyse(TM) are rapid lysis methods, while freeze-thaw is a low-cost alternative.
Article
Environmental Sciences
Lu Zhang, Fangjie Ge, Shuxian Zhang, Xia Li, Xue Peng, Xinyi Zhang, Qiaohong Zhou, Zhenbin Wu, Biyun Liu
Summary: This study investigated the decomposing effect of filamentous green algae Cladophora oligoclora on the density and photosynthetic capacity of Microcystis aeruginosa. The results showed that the decomposition of Cladophora oligoclora could significantly impact the water environment, especially under dark anaerobic conditions, potentially causing greater effects on lake ecosystems.
ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY
(2022)
Article
Engineering, Environmental
Yiling Li, Zhengtao Xu, Wen-Xiong Wang
Summary: This study demonstrates the potential of metal-organic frameworks (MOFs) as effective flocculants for the removal of harmful algal blooms. The water-stable Cr(III)-based MOFs show excellent performance in removing cyanobacterium Microcystis aeruginosa. The MOFs exhibit superior algal removal capacity compared to commercial flocculants and have a wide range of pH and cell density adaptability. This study sheds new light on the applications of MOFs in water treatment.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Acoustics
Hao-Ren Feng, Jian-An Wang, Liang Wang, Jia-Mei Jin, Shu-Wen Wu, Charles-C Zhou
Summary: Microcystis aeruginosa, a harmful alga, can produce toxins that are extremely toxic to the liver. Ultrasonic cavitation has been considered as an effective method for removing Microcystis aeruginosa. However, current commercial ultrasonic algae removal systems require complex design and consume high energy. To address this, a novel omnidirectional ultrasonic cavitation removal system is proposed, which simplifies the configuration and reduces energy consumption. Experimental results show that the proposed system effectively damages the algal cells and achieves high removal rates.
ULTRASONICS SONOCHEMISTRY
(2022)
Article
Engineering, Environmental
Hanyan Liu, Shengnan Chen, Haihan Zhang, Na Wang, Ben Ma, Xiang Liu, Limin Niu, Fan Yang, Yue Xu, Xiaoli Zhang
Summary: Harmful cyanobacteria blooms (HCBs) are a significant scientific challenge. Copper sulfate (CuSO4) was found to effectively inhibit the growth and photosynthetic capacity of Microcystis aeruginosa, as well as alter its metabolic profiles. The application of CuSO4 also showed potential in controlling algal growth and community structure in site-collected water. These findings contribute to understanding the mechanisms behind algae control and the impact on carbon cycling in aquatic ecosystems.
JOURNAL OF HAZARDOUS MATERIALS
(2023)
Article
Environmental Sciences
Kuo-Pei Tsai
ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY
(2015)
Article
Engineering, Environmental
Kuo-Pei Tsai, Alex T. Chow
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2016)
Article
Engineering, Environmental
Kuo-Pei Tsai, Habibullah Uzun, Tanju Karanfil, Alex T. Chow
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2017)
Article
Chemistry, Multidisciplinary
Huan Chen, Kuo-Pei Tsai, Qiong Su, Alex T. Chow, Jun-Jian Wang
ACS EARTH AND SPACE CHEMISTRY
(2019)
Article
Engineering, Environmental
Kuo-Pei Tsai, Habibullah Uzun, Huan Chen, Tanju Karanfil, Alex T. Chow
Proceedings Paper
Engineering, Environmental
Kuo-Pei Tsai, Mary-Frances Rogers, Alex T. Chow, Francisco Diaz
RECENT ADVANCES IN DISINFECTION BY-PRODUCTS
(2015)
Article
Environmental Sciences
Kuo-Pet Tsai, Chung-Yuan Chen
ENVIRONMENTAL TOXICOLOGY AND CHEMISTRY
(2007)
Article
Engineering, Environmental
Shih-Hung Hsieh, Kuo-Pei Tsai, Chung-Yuan Chen
Article
Engineering, Environmental
JH Lin, WC Kao, KP Tsai, CY Chen
Article
Forestry
Hamed Majidzadeh, Huan Chen, T. Adam Coates, Kuo-Pei Tsai, Christopher I. Olivares, Carl Trettin, Habibullah Uzun, Tanju Karanfil, Alex T. Chow
INTERNATIONAL JOURNAL OF WILDLAND FIRE
(2019)