Article
Environmental Sciences
Aigars Lavrinovics, Linda Mezule, Pavels Cacivkins, Talis Juhna
Summary: This study investigated the optimal initial conditions for the growth, phosphate removal, polyphosphate accumulation, and protein productivity of Chlorella vulgaris. Results showed that a 10-day period of phosphate deficiency, accompanied by low initial biomass concentration, significantly increased phosphate removal, polyphosphate accumulation, and protein productivity. The optimization model suggested that one-day biomass P-starvation with low initial biomass concentration was the most effective combination. These findings provide insights into using microalgae exposure to phosphorus stress for rapid phosphorus removal in wastewater treatment.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2022)
Review
Green & Sustainable Science & Technology
Wenwen Kong, Boxiong Shen, Honghong Lyu, Jia Kong, Jiao Ma, Zhuozhi Wang, Shuo Feng
Summary: The application of microalgae in CO2 fixation and wastewater treatment shows great potential, but challenges such as selecting superior strains and optimizing cultivation processes need to be addressed.
JOURNAL OF CLEANER PRODUCTION
(2021)
Article
Chemistry, Physical
Zhixin Wang, Ling Xia, Shaoxian Song, Maria E. Farias, Yinta Li, Chunyan Tang
Summary: This study demonstrated that living algae cultured in high-phosphorus medium can efficiently immobilize Cd2+ from diluted wastewater solution. Different phosphorus concentrations affected the production and adsorption performances of Cd2+ in the algae, with microalgae showing sensitivity to low concentrations of the heavy metal. Varying phosphorus concentrations regulated the surface phosphorus loading of microalgae, enhancing its adsorption ability of Cd2+ through the formation of Cd-phosphate mineral.
CHEMICAL PHYSICS LETTERS
(2021)
Review
Engineering, Chemical
Yilin Mao, Rongwei Xiong, Xiufang Gao, Li Jiang, Yancong Peng, Yan Xue
Summary: This review summarized phosphorus metabolism in microalgae, examined key factors impacting phosphorous removal by microalgae from wastewater, and reviewed the current status of research on phosphorous metabolism in microalgae-based municipal wastewater treatments. Additionally, methods for the recovery of microalgae after phosphorous removal were summarized to ensure sustainability in municipal wastewater treatment. Finally, a potential approach utilizing nanomaterials was proposed to enhance overall phosphorous removal performance in municipal wastewater.
Article
Agricultural Engineering
Cong-Cong Tang, Xinyi Zhang, Zhang-Wei He, Yu Tian, Xiaochang C. Wang
Summary: In an algal-bacteria symbiosis sludge system, extracellular polymeric substances (EPSs) play a crucial role in storing and transferring nutrients. The novel algaebased sequencing batch suspended biofilm reactor (A-SBSBR) model showed improved storage for various nutrients compared to conventional reactors, with mechanisms including active transport of divalent cations by microalgae and increased production of EPS through photosynthesis.
BIORESOURCE TECHNOLOGY
(2021)
Article
Plant Sciences
Costanza Baldisserotto, Sara Demaria, Michela Arcidiacono, Elisa Bena, Pierluigi Giaco, Roberta Marchesini, Lorenzo Ferroni, Linda Benetti, Marcello Zanella, Alessio Benini, Simonetta Pancaldi
Summary: Inadequately treated urban wastewater is a major cause of aquatic ecosystem pollution. Microalgae-based technologies have emerged as efficient and environmentally friendly methods to remove nitrogen and phosphorus from wastewater. This study isolated microalgae from urban wastewater and identified a Chlorella-like species for nutrient removal. The microalgae were cultivated by diluting the wastewater with tap water, and although growth and nutrient removal were not significantly affected, cell stress increased with higher concentrations of wastewater. However, this research demonstrates the potential of using microalgae for both wastewater treatment and the production of valuable compounds.
Review
Environmental Sciences
Mohammad Ali Zahed, Samira Salehi, Yasaman Tabari, Hossein Farraji, Saba Ataei-Kachooei, Ali Akbar Zinatizadeh, Nima Kamali, Mohammad Mahjouri
Summary: Phosphorus is an essential nutrient for life, but its entrance into the environment can lead to pollution and ecological issues. Various methods for phosphorus removal and recovery have been developed. This review provides an overview of phosphorus's role in nature and discusses different removal processes in detail. Chemical precipitation, ion exchange, membrane separation, and adsorption are the most commonly used methods.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Environmental Sciences
Hongli Cui, Jie Yu, Xiaoli Zhu, Yulin Cui, Chunli Ji, Chunhui Zhang, Jinai Xue, Xiaoyun Jia, Song Qin, Runzhi Li
Summary: The combination of Fenton oxidation and algal cultivation system shows high efficiency in nutrients removal, algal growth promotion and biomass production in the treatment of chicken farm flushing wastewater.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2021)
Article
Environmental Sciences
Shams Forruque Ahmed, M. Mofijur, Tahlil Ahmed Parisa, Nafisa Islam, F. Kusumo, Abrar Inayat, Van Giang Le, Irfan Anjum Badruddin, T. M. Yunus Khan, Hwai Chyuan Ong
Summary: The utilization of microalgae in treating wastewater has shown high efficiency in removing nutrients and heavy metals from different types of wastewater. However, challenges such as the impact of parameters like temperature, biomass productivity, osmotic ability, pH, and O2 concentration on nutrient removal in wastewater need to be addressed. Conducting pilot-scale studies and exploring the complexities of contaminants under complex environmental conditions are recommended for further research.
Article
Engineering, Environmental
Dongxu Xing, Xunzhou Li, Chunji Jin, Yangguo Zhao, Xiaoman Yang, Mengchun Gao, Junyuan Ji, Xiaofei Xu, Zonglian She, Liang Guo
Summary: Microalgae cultivation with wastewater provides a promising approach for wastewater treatment and microalgae products recovery. Different forms and concentrations of phosphorus can affect the biochemical composition and phosphorus absorption of microalgae, with the combination of K2HPO4 and ATP showing the best result. Adequate phosphorus supply can promote biomass production of microalgae, but excessive phosphorus concentrations have a negative impact on biomass production and lipid contents.
JOURNAL OF WATER PROCESS ENGINEERING
(2022)
Article
Agricultural Engineering
Mingxiang Qv, Dian Dai, Dongyang Liu, Qirui Wu, Chunming Tang, Shuangxi Li, Liandong Zhu
Summary: In this study, a microalgae-bacteria symbiosis (ABS) system was developed for pollutants removal by co-culturing Chlorella sorokiniana with activated sludge, and the interaction mechanism was investigated. The ABS system achieved almost complete removal of ammonia nitrogen, with removal efficiencies of 65.3% for total nitrogen and 42.6% for total phosphorus. Brevundimonas greatly promoted microalgal biomass growth and microalgae contributed to the increase in the abundance of Dokdonella and Thermomonas, facilitating nitrogen removal. The study also identified key extracellular polymeric substances for the formation of flocs by microalgae and activated sludge.
BIORESOURCE TECHNOLOGY
(2023)
Article
Engineering, Environmental
Gaozhong Fan, Jie Huang, Xin Jiang, Weile Meng, Rui Yang, Jinsong Guo, Fang Fang, Jixiang Yang
Summary: In this study, a continuous-flow biofilm photobioreactor combined with a membrane bioreactor (MBR) was used for high-saline wastewater treatment. The MBR effectively removed organic matter and converted ammonia nitrogen into nitrate nitrogen, providing favorable water quality for the subsequent MBPBR. The MBPBR achieved high removal efficiencies for nitrate nitrogen and phosphorus, with algae growth contributing significantly to the removal process.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
Article
Engineering, Environmental
Juan Peng, Kai-Lu Cao, Si-Bo Lv, Yu-Xuan Hu, Jia Lin, Qian-Zhi Zhou, Jiang -Hai Wang
Summary: This article reviews the technology of using microalgae to remove antibiotic contaminants, including strain selection, treatment systems, and degradation mechanisms. The article points out that isolating ideal microalgae strains and developing efficient cultivation modes are crucial for improving removal efficiency. In addition, the article summarizes novel approaches to antibiotic degradation by microalgae and discusses related ecological considerations.
JOURNAL OF WATER PROCESS ENGINEERING
(2023)
Article
Environmental Sciences
William Michelon, Alexandre Matthiensen, Aline Viancelli, Gislaine Fongaro, Vanessa Gressler, Hugo Moreira Soares
Summary: Phycoremediation is an effective method for treating swine wastewater, as it removes contaminants and produces valuable biomass. This research found that phycoremediation can degrade tetracycline antibiotics in swine wastewater and produce carbohydrate-rich microalgae biomass, which can be used for bioenergy conversion.
ENVIRONMENTAL RESEARCH
(2022)
Article
Environmental Sciences
Qi Yang, Min Zhang, Hend A. Alwathnani, Muhammad Usman, Badr A. Mohamed, Abd El-Fatah Abomohra, El-Sayed Salama
Summary: Microalgae show growth and fatty acids accumulation up to a certain level dependent on species and cultivation conditions. Application of abiotic stress can induce nutrient uptake and enhance biocomponent accumulation. In this study, freshwater microalgae were investigated for growth, nutrient removal, and FAs composition during cultivation in municipal wastewater under different NaCl concentrations. The results showed that both microalgae exhibited nutrient removal capability under high salinity conditions, with varying FAs composition.
WASTE AND BIOMASS VALORIZATION
(2022)
Article
Biotechnology & Applied Microbiology
Sara Mateo, Nuria Zamorano-Lopez, Luis Borras, Francisco Jesus Fernandez-Morales, Pablo Canizares, Aurora Seco, Manuel Rodrigo
JOURNAL OF CHEMICAL TECHNOLOGY AND BIOTECHNOLOGY
(2018)
Article
Environmental Sciences
Paula Barbarroja, Andres Zornoza, Daniel Aguado, Luis Borras, Jose Luis Alonso
ENVIRONMENTAL POLLUTION
(2019)
Article
Environmental Sciences
N. Zamorano-Lopez, L. Borras, A. Seco, D. Aguado
SCIENCE OF THE TOTAL ENVIRONMENT
(2020)
Article
Biotechnology & Applied Microbiology
N. Zamorano-Lopez, S. Greses, D. Aguado, A. Seco, L. Borras
ALGAL RESEARCH-BIOMASS BIOFUELS AND BIOPRODUCTS
(2019)
Article
Agricultural Engineering
Nuria Zamorano-Lopez, Luis Borras, Juan B. Gimenez, Aurora Seco, Daniel Aguado
BIORESOURCE TECHNOLOGY
(2019)
Article
Agricultural Engineering
J. Gonzalez-Camejo, S. Aparicio, M. V. Ruano, L. Borras, R. Barat, J. Ferrer
BIORESOURCE TECHNOLOGY
(2019)
Review
Agricultural Engineering
Angel Robles, Daniel Aguado, Ramon Barat, Luis Borras, Alberto Bouzas, Juan Bautista Gimenez, Nuria Marti, Josep Ribes, Maria Victoria Ruano, Joaquin Serralta, Jose Ferrer, Aurora Seco
BIORESOURCE TECHNOLOGY
(2020)
Article
Engineering, Environmental
J. Gonzalez-Camejo, P. Montero, S. Aparicio, M. Ruano, L. Borras, A. Seco, R. Barat
Article
Engineering, Environmental
J. Gonzalez-Camejo, S. Aparicio, A. Jimenez-Benitez, M. Paches, M. Ruano, L. Borras, R. Barat, A. Seco
Article
Biotechnology & Applied Microbiology
R. Serna-Garcia, L. Borras, A. Bouzas, A. Seco
ALGAL RESEARCH-BIOMASS BIOFUELS AND BIOPRODUCTS
(2020)
Article
Environmental Sciences
Stephanie Aparicio, Rebecca Serna-Garcia, Aurora Seco, Jose Ferrer, Luis Borras-Falomir, Angel Robles
Summary: The study assessed a microalgae model applied to a Membrane Photobioreactor (MPBR) pilot plant through a global sensitivity and uncertainty analysis. The influential factors of the model were identified, calibrated offline or online, and the model's uncertainty was evaluated. The results indicated a need for offline calibration methods to improve model performance.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Engineering, Environmental
G. Noriega-Hevia, J. Serralta, L. Borras, A. Seco, J. Ferrer
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2020)
Proceedings Paper
Education & Educational Research
Angel Robles, Juan Bautista Gimenez, Luis Borras, Marta Izquierdo, Antonio Jimenez, Maria Victoria Ruano, Rita Sanchez-Tovar, Pau San-Valero, Jose David Badia
14TH INTERNATIONAL TECHNOLOGY, EDUCATION AND DEVELOPMENT CONFERENCE (INTED2020)
(2020)
Proceedings Paper
Education & Educational Research
M. V. Ruano, F. J. Alvarez-Hornos, J. B. Gimenez, M. Izquierdo, A. Robles, E. Lladosa, L. Borras, R. Sanchis, N. Marti, P. San-Valero, A. L. Jimenez, J. P. Cerisuelo, J. Ribes, O. Gil-Castell, M. D. Hernaiz, P. J. Miguel, A. Chafer, J. D. Badia
14TH INTERNATIONAL TECHNOLOGY, EDUCATION AND DEVELOPMENT CONFERENCE (INTED2020)
(2020)
Article
Environmental Sciences
Toshimi Nakajima, Mao Kuragano, Makoto Yamada, Ryo Sugimoto
Summary: This study compared the contribution of submarine groundwater discharge (SGD) to river nutrient budgets at nearshore and embayment scales, and found that SGD-derived nutrients become more important at larger spatial scales.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Fan Liu, Lei Zhang, Chongyang Zhang, Ziguang Chen, Jingguang Li
Summary: NO2 emissions from wall-mounted gas stoves used for household heating have become a significant source of indoor pollution in Chinese urban areas. The high indoor concentration of NO2 poses potential health risks to residents. It is urgently necessary to establish relevant regulations and implement emission reduction technologies to reduce NO2 emissions from wall-mounted gas stoves.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Letter
Environmental Sciences
Hans Peter H. Arp, Raoul Wolf, Sarah E. Hale, Sivani Baskaran, Juliane Gluege, Martin Scheringer, Xenia Trier, Ian T. Cousins, Harrie Timmer, Roberta Hofman-Caris, Anna Lennquist, Andre D. Bannink, Gerard J. Stroomberg, Rosa M. A. Sjerps, Rosa Montes, Rosario Rodil, Jose Benito Quintana, Daniel Zahn, Herve Gallard, Tobias Mohr, Ivo Schliebner, Michael Neumann
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Philomina Onyedikachi Peter, Binessi Edouard Ifon, Francois Nkinahamira, Kayode Hassan Lasisi, Jiangwei Li, Anyi Hu, Chang-Ping Yu
Summary: This study investigates the relationship between dissolved organic matter (DOM) and Rare Earth Elements (REEs) in sediments from Yundang Lagoon, China. The results show four distinct fluorescent components, with protein-like substances being the most prevalent. Additionally, the total fluorescence intensity and LREE concentrations exhibit a synchronized increase from Outer to Inner to Songbai Lake core sediments. The findings demonstrate a strong correlation between DOM content and pollution levels.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Surya Gupta, Pasquale Borrelli, Panos Panagos, Christine Alewell
Summary: The objective of this study is to incorporate soil hydraulic properties into the erodibility factor (K) of USLE-type models. By modifying and improving the existing equations for soil texture and permeability, the study successfully included information on saturated hydraulic conductivity (Ksat) into the calculation of K factor. Using the Random Forest machine learning algorithm, two independent K factor maps with different spatial resolutions were generated. The results show that the decrease in K factor values has a positive impact on the modeling of soil erosion rates.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Jesmin Akter, Wendy J. M. Smith, Yawen Liu, Ilho Kim, Stuart L. Simpson, Phong Thai, Asja Korajkic, Warish Ahmed
Summary: The choice of workflow in wastewater surveillance has a significant impact on SARS-CoV-2 concentrations, while having minimal effects on HF183 and no effect on HAdV 40/41 concentrations. Certain components in the workflow can be interchangeable, but factors such as buffer type, chloroform, and homogenization speed can affect the recovery of viruses and bacteria.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Yu Luo, Xueting Yang, Diwei Wang, Hongmei Xu, Hongai Zhang, Shasha Huang, Qiyuan Wang, Ningning Zhang, Junji Cao, Zhenxing Shen
Summary: Atmospheric PM2.5, which can generate reactive oxygen species (ROS), is associated with cardiorespiratory morbidity and mortality. The study found that both the mass concentration of PM2.5 and the DTT activity were higher during the heating season than during the nonheating season. Combustion sources were the primary contributors to DTT activity during the heating season, while secondary formation dominated during the nonheating season. The study also revealed that biomass burning had the highest inherent oxidation potential among all sources investigated.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Erin L. Murphy, Leah R. Gerber, Chelsea M. Rochman, Beth Polidoro
Summary: Plastic pollution has devastating consequences for marine organisms. This study uses a trait-based framework to develop a vulnerability index for marine mammals, seabirds, and sea turtles in Hawai'i. The index ranks 63 study species based on their vulnerability to macroplastic pollution, providing valuable information for species monitoring and management priorities.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Kenji Maurice, Amelia Bourceret, Sami Youssef, Stephane Boivin, Liam Laurent-Webb, Coraline Damasio, Hassan Boukcim, Marc-Andre Selosse, Marc Ducousso
Summary: Growing pressure from climate change and agricultural land use is destabilizing soil microbial community interactions. Little is known about microbial community resistance and adaptation to disturbances, hindering our understanding of recovery latency and implications for ecosystem functioning. This study found that anthropic disturbance and natural disturbance have different effects on the topology and stability of soil microbial networks.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Yunhao Li, Yali Feng, Haoran Li, Yisong Yao, Chenglong Xu, Jinrong Ju, Ruiyu Ma, Haoyu Wang, Shiwei Jiang
Summary: Deep-sea mining poses a serious threat to marine ecosystems and human health by disturbing sediment and transmitting metal ions through the food chain. This study developed a new regenerative adsorption material, OMN@SA, which effectively removes metal ions. The adsorption mechanism and performance of the material for metal ion fixation were investigated.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Antonio Medici, Margherita Lavorgna, Marina Isidori, Chiara Russo, Elena Orlo, Giovanni Luongo, Giovanni Di Fabio, Armando Zarrelli
Summary: Valsartan, a widely used antihypertensive drug, has been detected in high concentrations in surface waters due to its unchanged excretion and incomplete degradation in wastewater treatment plants. This study investigated the degradation of valsartan and identified 14 degradation byproducts. The acute and chronic toxicity of these byproducts were evaluated in key organisms in the freshwater trophic chain.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Jiang Lin, Lianbao Chi, Qing Yuan, Busu Li, Mingbao Feng
Summary: This study investigated the photodegradation behavior and product formation of two representative pharmaceuticals in simulated estuary water. The study found that the formed transformation products of these pharmaceuticals have potential toxicity on marine organisms, including oxidative stress and damage to cellular components.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Hua Fang, Dongdong Jiang, Ye He, Siyi Wu, Yuehong Li, Ziqi Zhang, Haoting Chen, Zixin Zheng, Yan Sun, Wenxiang Wang
Summary: This study revealed that exposure to lower levels of air pollutants led to decreased pregnancy rates, with PM10, NO2, SO2, and CO emerging as the four most prominent pollutants. Individuals aged 35 and above exhibited heightened susceptibility to pollutants.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Ali Shaan Manzoor Ghumman, Rashid Shamsuddin, Amin Abbasi, Mohaira Ahmad, Yoshiaki Yoshida, Abdul Sami, Hamad Almohamadi
Summary: In this study, inverse vulcanized polysulfides (IVP) were synthesized by reacting molten sulfur with 4-vinyl benzyl chloride, and then functionalized using N-methyl D-glucamine (NMDG). The functionalized IVP showed a high mercury adsorption capacity and a machine learning model was developed to predict the amount of mercury removed. Furthermore, the functionalized IVP can be regenerated and reused, providing a sustainable and cost-effective adsorbent.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Rita Bonfiglio, Renata Sisto, Stefano Casciardi, Valeria Palumbo, Maria Paola Scioli, Erica Giacobbi, Francesca Servadei, Gerry Melino, Alessandro Mauriello, Manuel Scimeca
Summary: This study investigated the presence of aluminum in human colon cancer samples and its potential association with biological processes involved in cancer progression. Aluminum was found in tumor areas of 24% of patients and was associated with epithelial to mesenchymal transition (EMT) and cell death. Additional analyses revealed higher tumor mutational burden and mutations in genes related to EMT and apoptosis in aluminum-positive colon cancers. Understanding the molecular mechanisms of aluminum toxicity may improve strategies for the management of colon cancer patients.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)