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
Energy & Fuels
Adel I. Alalawy, Qi Yang, Min Zhang, Fahad M. Almutairi, Ghena M. Al-Jahani, Fahad M. Almasoudi, Maeidh A. Alotaibi, El-Sayed Salama
Summary: In this study, the cultivation of freshwater microalga (Tetradesmus obliquus GEEL-11) in municipal wastewater supplemented with NaCl concentrations was investigated. The addition of 75 mM salt resulted in maximum microalgal growth, while higher salt concentrations hindered the growth. T. obliquus GEEL-11 demonstrated effective nutrient removal and showed potential for biodiesel production.
BIOMASS CONVERSION AND BIOREFINERY
(2023)
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
Cell Biology
Vaishali Rani, Gergely Maroti
Summary: The study found that Chlamydomonas sp. MACC-216 and Chlorella sp. MACC-360 were able to remove nitrate from water bodies, with decreasing total pigment content and increasing lipid content as nitrate concentration increased. Both microalgae demonstrated good growth and nitrate removal capacity in synthetic wastewater.
Article
Horticulture
Jeet Varia, Cedric Kamaleson, Leonard Lerer
Summary: Vertical farming is seen as a potential solution for providing high-quality, accessible, and environmentally friendly nutrition for urban populations, but innovative technologies are needed to industrialize and expand its production beyond leafy greens and fruits. Research into biostimulation, such as using phycocyanin-rich Spirulina extract, shows promising results in promoting plant growth, improving crop yield, and potentially enhancing prebiotic activity in hydroponic vertical farming.
SCIENTIA HORTICULTURAE
(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
Environmental Sciences
Rajesh Chandra, Snigdhendubala Pradhan, Alok Patel, Uttam Kumar Ghosh
Summary: The study demonstrates that polymicroalgae cultures are more efficient in dairy wastewater treatment and biodiesel feedstock production, especially when supplemented with glucose, resulting in higher biomass and lipid yields.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2021)
Review
Agricultural Engineering
Chaofan Zhang, Shengnan Li, Shih-Hsin Ho
Summary: The new wastewater treatment process using microalgae-bacteria consortia shows excellent performance in nutrients removal and potential for bioenergy production.
BIORESOURCE TECHNOLOGY
(2021)
Article
Green & Sustainable Science & Technology
Daniela Montano San Agustin, Maria Teresa Orta Ledesma, Ignacio Monje Ramirez, Isaura Yanez Noguez, Victor Manuel Luna Pabello, Sharon B. Velasquez-Orta
Summary: This study explores the development of a non-sterile heterotrophic microalgae process for treating wastewater with high organic matter concentration, using Scenedesmus sp. Urban and swine wastewaters were utilized as organic carbon sources, with a C:N ratio of 3.4:1 leading to significantly high biomass concentrations achieved. The heterotrophic growth showed promise in organic matter removal and biomass production, likely due to the microalgae-bacteria association.
Article
Green & Sustainable Science & Technology
Soroush Azizi, Bahareh Bayat, Hanieh Tayebati, Ali Hashemi, Farshid Pajoum Shariati
Summary: The membrane photobioreactor (MPBR) efficiently treated pulp and paper wastewater by cultivating Chlorella vulgaris under different light intensities and light-dark cycles, achieving maximum photosynthetic productivity and nitrate-phosphate removal. This study demonstrates the potential of MPBR systems in nutrient assimilation from wastewater effluent.
ENVIRONMENTAL PROGRESS & SUSTAINABLE ENERGY
(2021)
Article
Environmental Sciences
Kun Li, Fan Fang, Qiang Liu, Ruihuan Luo, Jiacheng Li, Yue Zhu, Yuansong Wei, Min Addy, Paul Chen, Roger Ruan
Summary: The study monitored the variation of NF membrane fouling to reveal significant changes in the composition and concentration of foulants on the membrane surface over time, highlighting the importance of a thorough understanding of membrane fouling mechanisms.
ENVIRONMENTAL TECHNOLOGY
(2021)
Article
Chemistry, Physical
Lingqin Liu, Yaji Huang, Jianhua Cao, Huajun Hu, Lu Dong, Jianrui Zha, Yinhai Su, Roger Ruan, Shengnian Tao
Summary: This study investigated the Pb2+ adsorption mechanisms of corn stalk biochars (CSBs) and rice husk biochars (RHBs), finding that CSBs had higher adsorption capacities mainly due to cation exchange and precipitation mechanisms. Increasing oxygen content could enhance the contribution of cation exchange in Pb2+ adsorption by CSBs.
JOURNAL OF MOLECULAR LIQUIDS
(2021)
Article
Agricultural Engineering
Chenxi Wang, Hanwu Lei, Yunfeng Zhao, Moriko Qian, Xiao Kong, Wendy Mateo, Rongge Zou, Roger Ruan
Summary: The catalytic pyrolysis of Douglas fir using nanocellulose derived biochar catalyst significantly enhances the production of phenolic monomers and hydrogen. Under certain temperature and ratio conditions, the concentrations of phenol, cresols, and dimethylphenols can be greatly increased or decreased. Reusing the biochar catalysts still leads to a much higher concentration of phenolic monomers and hydrogen compared to processes without catalysts.
BIORESOURCE TECHNOLOGY
(2021)
Article
Biochemistry & Molecular Biology
Qingqing Mao, Juer Liu, Justin R. Wiertzema, Dongjie Chen, Paul Chen, David J. Baumler, Roger Ruan, Chi Chen
Summary: IPL treatment selectively affects the metabolites in E. coli, leading to a cascade of metabolic changes possibly initiated by the degradation of membrane quinones, ultimately resulting in oxidative stress, disruption of intermediary metabolism, nucleotide degradation, and morphological changes.
Article
Agricultural Engineering
Zhiqiang Gu, Yuhuan Liu, Guyue Zou, Qi Zhang, Rumeng Lu, Hongbin Yan, Leipeng Cao, Tongying Liu, Roger Ruan
Summary: The study found that pretreating PMADE with indigenous bacteria can significantly reduce their inhibitory effect on Chlorella vulgaris growth, promoting nutrient removal and cell growth.
BIORESOURCE TECHNOLOGY
(2021)
Review
Green & Sustainable Science & Technology
Hui Li, Yangyang Wang, Nan Zhou, Leilei Dai, Wenyi Deng, Chenhui Liu, Yanling Cheng, Yuhuan Liu, Kirk Cobb, Paul Chen, Roger Ruan
Summary: The review provides an overview of the application of CaO-based catalysts in biomass CPG, emphasizing the importance of CaO in catalytic conversion of biomass to biofuels and discussing different types of CaO-based catalysts.
JOURNAL OF CLEANER PRODUCTION
(2021)
Article
Green & Sustainable Science & Technology
Jia Wang, Jianchun Jiang, Yunjuan Sun, Xiaobo Wang, Mi Li, Shusheng Pang, Roger Ruan, Arthur J. Ragauskas, Yong Sik Ok, Daniel C. W. Tsang
Summary: Catalytic conversion of waste rubbers and plastics into aromatic hydrocarbons shows promise for waste management and energy recovery. Different metal supported HY zeolites exhibit varying effects on catalytic activity, with zirconium and iron supported HY leading to significant improvements in aromatic hydrocarbons production and selectivity.
JOURNAL OF CLEANER PRODUCTION
(2021)
Article
Green & Sustainable Science & Technology
Shuyu Xiang, Feihu Lu, Yuhuan Liu, Roger Ruan
Summary: The presence of heavy metals in pig manure can inhibit biogas production and increase environmental pollution risk, while rice straw serves as a good co-digestion substrate and natural adsorbent. The study found that heavy metals were transformed into solid phase through adsorption during anaerobic digestion, with microwave and ultrasonic treatment improving adsorption properties, while alkaline treatment favored anaerobic digestion.
JOURNAL OF CLEANER PRODUCTION
(2021)
Article
Food Science & Technology
Myung-Woo Kang, Dongjie Chen, Roger Ruan, Zata M. Vickers
Summary: The study examined how intense pulsed light processing parameters affected aroma, flavor, and mouthfeel of nonfat dry milk, finding that increasing exposure time led to increased intensities of overall flavor and umami taste, while increasing temperature increased certain aromas. All levels of exposure time resulted in increased aroma and flavor, while appearance changes were only noticeable in milk powder at the highest exposure level and lowest temperature. The study highlights the importance of understanding critical factors impacting sensory properties for better implementation of this decontamination technology.
JOURNAL OF FOOD SCIENCE
(2021)
Article
Thermodynamics
Yongsheng Jia, Yingjie Wang, Qi Zhang, Hongwei Rong, Yuhuan Liu, Bo Xiao, Dabin Guo, Mahmood Laghari, Roger Ruan
Summary: This study investigates the relationship between particle size of sawdust and gas-carrying capacity, as well as its influence on combustion temperature. The results show that sawdust particles with a size of 150-180 μm have the best gas-carrying performance and highest combustion temperature.
Review
Biochemistry & Molecular Biology
Chun Wang, Mei Qi, Jiameng Guo, Chengxu Zhou, Xiaojun Yan, Roger Ruan, Pengfei Cheng
Summary: This study summarizes the characteristics of phytohormones in microalgae and their regulatory effects on the accumulation of energy storage substances. Additionally, the addition of phytohormones can reduce production costs and improve the efficiency of biofuel utilization. Accurate and sensitive determination and analytical methods for phytohormones are crucial for plant hormone research.
Article
Environmental Sciences
Xiaodan Wu, Ni Hong, Qingjing Cen, Jiaxin Lu, Hui Wan, Wei Liu, Hongli Zheng, Roger Ruan, Kirk Cobb, Yuhuan Liu
Summary: Constructed wetlands are an environmentally friendly and economically efficient sewage treatment technology. This study tested several phosphate materials and found that hydroxyapatite, calcium phosphate, and physic acid sodium salt hydrate demonstrated high removal efficiency of heavy metals.
INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH
(2022)
Review
Food Science & Technology
Jiameng Guo, Mei Qi, Hongyu Chen, Chengxu Zhou, Roger Ruan, Xiaojun Yan, Pengfei Cheng
Summary: Macroalgae, widely distributed in the marine environment, plays an important role in various fields such as food, medicine, and environmental remediation. They have the characteristics of easy accessibility, efficient carbon fixation, and absorption of nitrogen and phosphorus from wastewater, which allows them to produce abundant nutriments and bioactive substances beneficial for food production and medicine development.
Review
Food Science & Technology
Yingdan Zhu, Yueting Luan, Yingnan Zhao, Jiali Liu, Zhangqun Duan, Roger Ruan
Summary: The fruit and vegetable industry generates large amounts of residues, leading to significant economic losses. These residues contain bioactive substances with antioxidant, antibacterial, and other properties. Current technologies allow for the utilization of fruit and vegetable waste as ingredients, food bioactive compounds, and biofuels. Various extraction methods and biorefinery processes are employed for this purpose. This study provides strategies for eco-friendly processing of fruit and vegetable waste and lays the foundation for their sustainable utilization.
Article
Food Science & Technology
Juer Liu, Yuyang Yao, Yanling Cheng, Wei Hua, Xinyue Zhu, Qiming Miao, Guangwei Huang, Shengquan Mi, Roger Ruan
Summary: This study conducted an acute oral toxicity test using almond hull powders from three major almond varieties, and the results demonstrated that almond hull powders were non-toxic, even at high dosages, supporting their safety as an edible food ingredient.
Article
Green & Sustainable Science & Technology
Lars odegaard Bentsen, Narada Dilp Warakagoda, Roy Stenbro, Paal Engelstad
Summary: This study investigates uncertainty modeling in wind power forecasting using different parametric and non-parametric methods. Johnson's SU distribution is found to outperform Gaussian distributions in predicting wind power. This research contributes to the literature by introducing Johnson's SU distribution as a candidate for probabilistic wind forecasting.
JOURNAL OF CLEANER PRODUCTION
(2024)
Article
Green & Sustainable Science & Technology
Xing Liu, Qiuchen Wang, Yunhao Wen, Long Li, Xinfang Zhang, Yi Wang
Summary: This study analyzes the characteristics of process parameters in three lean gas ethane recovery processes and establishes a prediction and multiobjective optimization model for ethane recovery and system energy consumption. A new method for comparing ethane recovery processes for lean gas is proposed, and the addition of extra coolers improves the ethane recovery. The support vector regression model based on grey wolf optimization demonstrates the highest prediction accuracy, and the multiobjective multiverse optimization algorithm shows the best optimization performance and diversity in the solutions.
JOURNAL OF CLEANER PRODUCTION
(2024)
Article
Green & Sustainable Science & Technology
Cairong Song, Haidong Yang, Xian-Bing Meng, Pan Yang, Jianyang Cai, Hao Bao, Kangkang Xu
Summary: The paper proposes a novel deep learning-based prediction framework, aTCN-LSTM, for accurate cooling load predictions. The framework utilizes a gate-controlled multi-head temporal convolutional network and a sparse probabilistic self-attention mechanism with a bidirectional long short-term memory network to capture both temporal and long-term dependencies in the cooling load sequences. Experimental results demonstrate the effectiveness and superiority of the proposed method, which can serve as an effective guide for HVAC chiller scheduling and demand management initiatives.
JOURNAL OF CLEANER PRODUCTION
(2024)
Article
Green & Sustainable Science & Technology
Zhe Chen, Xiaojing Li, Xianli Xia, Jizhou Zhang
Summary: This study uses survey data from the Loess Plateau in China to evaluate the impact of social interaction on the adoption of soil and water conservation (SWC) technology by farmers. The study finds that social interaction increases the likelihood of farmers adopting SWC, and internet use moderates this effect. The positive impact of social interaction on SWC adoption is more pronounced for farmers in larger villages and those who join cooperative societies.
JOURNAL OF CLEANER PRODUCTION
(2024)
Article
Green & Sustainable Science & Technology
Chenghua Zhang, Yunfei Yan, Kaiming Shen, Zongguo Xue, Jingxiang You, Yonghong Wu, Ziqiang He
Summary: This paper reports a novel method that significantly improves combustion performance, including heat transfer enhancement under steady-state conditions and adaptive stable flame regulation under velocity sudden increase.
JOURNAL OF CLEANER PRODUCTION
(2024)
