Article
Biotechnology & Applied Microbiology
Senthil Nagappan, Gopalakrishnan Kumar
Summary: The study explores the use of nitrogen-deficient synthetic wastewater to increase lipid and carbohydrate content in selected microalgae, while maintaining carotenoids. This approach shows promise as a low-cost and economical option for biorefinery.
ENVIRONMENTAL TECHNOLOGY & INNOVATION
(2021)
Article
Biotechnology & Applied Microbiology
Ainoa Morillas-Espana, Tomas Lafarga, Francisco Gabriel Acien-Fernandez, Cintia Gomez-Serrano, Cynthia Victoria Gonzalez-Lopez
Summary: Microalgae-based wastewater treatment is an environmentally friendly and efficient method, utilizing the ability of microalgae to recover nutrients from wastewater while producing valuable biomass with industrial applications, improving efficiency and reducing production costs.
JOURNAL OF APPLIED PHYCOLOGY
(2021)
Review
Biochemistry & Molecular Biology
Pei Sean Goh, Nor Akalili Ahmad, Jun Wei Lim, Yong Yeow Liang, Hooi Siang Kang, Ahmad Fauzi Ismail, Gangasalam Arthanareeswaran
Summary: The use of microalgae for wastewater remediation and nutrient recovery addresses the need for a circular bioeconomy, providing solutions for water and energy resource depletions. Membrane photobioreactors (MPBRs) have shown great potential in integrating microalgae-based wastewater treatment and nutrient recovery, paving the way for large-scale implementation of membrane technology.
Article
Biotechnology & Applied Microbiology
Ainoa Morillas-Espana, Tomas Lafarga, Ana Sanchez-Zurano, Francisco Gabriel Acien-Fernandez, Enrique Rodriguez-Miranda, Cintia Gomez-Serrano, Cynthia Victoria Gonzalez-Lopez
Summary: The study demonstrated the potential of using pilot-scale raceway photobioreactors to produce Scenedesmus sp. from wastewater with high levels of nutrients. Validation of the ABACO model showed robust and accurate prediction of biomass productivity throughout the year under different seasonal and temperature conditions in outdoor open raceways.
ALGAL RESEARCH-BIOMASS BIOFUELS AND BIOPRODUCTS
(2021)
Article
Agricultural Engineering
Rahulkumar Maurya, Xinyu Zhu, Borja Valverde-Perez, Boda Ravi Kiran, Thiyam General, Suvigya Sharma, Anil Kumar Sharma, Marianne Thomsen, S. Venkata Mohan, Kaustubha Mohanty, Irini Angelidaki
Summary: This review article focuses on recent updates on remediating industrial wastewater through microalgae cultivation, discussing topics such as enhancing microalgae growth and remediation simultaneously by adding additional nutrients, utilizing nutrient-rich wastewater directly, and discussing various strategies and tools used for microalgae cultivation on industrial wastewater.
BIORESOURCE TECHNOLOGY
(2022)
Article
Agricultural Engineering
Wageeporn Maneechote, Benjamas Cheirsilp, Irini Angelidaki, Wasana Suyotha, Piyarat Boonsawang
Summary: The oleaginous microalga Scenedesmus sp. SPP was rapidly immobilized in oleaginous fungal pellets by utilizing their opposite surface charges. The microalgae-fungal (MF) pellets showed higher efficiency in improving the bioremediation of non-sterile secondary effluent compared to mono-culture. By coating the MF pellets with 0.4% chitosan, the removal efficiencies of COD, TN, and TP were significantly enhanced, likely due to better cell retention and nutrient adsorption and assimilation.
BIORESOURCE TECHNOLOGY
(2023)
Article
Marine & Freshwater Biology
Manami Chakravorty, Manisha Nanda, Bhawna Bisht, Rohit Sharma, Sanjay Kumar, Abhilasha Mishra, Mikhail S. Vlaskin, P. K. Chauhan, Vinod Kumar
Summary: Microalgae have the potential to be beneficial in resolving various environmental challenges by resisting heavy metals, such as the cost-effective and ecological remediation of contaminated water and the development of bioenergy sources. They can uptake and detoxify heavy metals through mechanisms like biosorption and bioaccumulation, with the assistance of different transporters. Microalgae have been effective in eradicating various heavy metals from the environment, and they can also contribute to the generation of biofuels and the formation of nanoparticles. The review emphasizes the strategies, transporters, and applications of microalgae due to their ability to resist metals.
AQUATIC TOXICOLOGY
(2023)
Article
Environmental Sciences
Rahul Jain, Sanjeev Mishra, Kaustubha Mohanty
Summary: This study aimed to cultivate Chlorella thermophile by integrating cattle wastewater and domestic sewage wastewater, in order to address the challenge of expensive chemical fertilizers and large freshwater requirements. Through the analysis of nutrient consumption patterns in batch and fed-batch cultivation conditions, it was found that 2.5% cattle wastewater resulted in the highest biomass yield. Fed-batch cultivation showed a twofold increase in biomass yield compared to batch cultivation.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2022)
Article
Agricultural Engineering
Elisa Clagnan, Giuliana D'Imporzano, Marta Dell'Orto, Ana Sanchez-Zurano, Francisco Gabriel Acien-Fernandez, Biancamaria Pietrangeli, Fabrizio Adani
Summary: Microalgae cultivation is effective in reducing pathogens and purifying wastewater, but a comprehensive understanding of the risks is still needed. Different methods were used to explore microbial community and pathogen presence, showing that media and sampling locations have an impact on community structure and pathogenic loads. The main detected pathogens were Arcobacter and Elizabethkingia (mainly in wastewater), with a significant presence of Aeromonas in all samples. Raceways show potential as an effective biotreatment, with most retained pathogens being released in the outlet and only a small part settling in the biomass.
BIORESOURCE TECHNOLOGY
(2022)
Article
Engineering, Environmental
Shweta Tripathi, Tapasranjan Behera, Krishna Mohan Poluri
Summary: This study investigates the efficiency of microalgae-based remediation in removing cadmium from water bodies. The results demonstrate that Coccomyxa sp. IITRSTKM4 can effectively remove cadmium and survive cadmium stress by regulating its survival mechanisms. Furthermore, the study also highlights the potential of Coccomyxa sp. in producing biofuels.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2022)
Article
Environmental Sciences
Azalea Dyah Maysarah Satya, Wai Yan Cheah, Sara Kazemi Yazdi, Yu-Shen Cheng, Kuan Shiong Khoo, Dai-Viet N. Vo, Xuan Dong Bui, Meththika Vithanage, Pau Loke Show
Summary: Water usage is increasing due to its finite amount and competitiveness, leading to the need for water recirculation in industries. The circular bioeconomy highlights the importance of reusing and recycling materials, and microalgae is an ideal source for this approach due to its fast growth, adaptability, and ability to consume nutrients. This review investigates the potential of microalgae biomass cultivated in wastewater and its role in the circular bioeconomy, focusing on the production of goods from wastes contaminated with emerging pollutants. The aim is to provide new insights to researchers and industrial stakeholders interested in green alternatives and contribute to environmental sustainability.
ENVIRONMENTAL RESEARCH
(2023)
Article
Biotechnology & Applied Microbiology
Victor Okorie Mkpuma, Tasneema Ishika, Navid Reza Moheimani, Houda Ennaceri
Summary: This article explores the potential of using wastewater as a cost-effective culture medium for cultivating B. braunii and producing biofuels and reclaiming wastewater. The suitability of different types of wastewater (agricultural, municipal, and industrial) for B. braunii growth is discussed, along with the physicochemical parameters that influence its growth in wastewater. The challenges and potential solutions for cultivating B. braunii in wastewater are identified. Utilizing abundantly available, costless wastewater for B. braunii cultivation is a roadmap towards achieving cost-efficient and environmentally friendly biofuel production and other valuable products.
ALGAL RESEARCH-BIOMASS BIOFUELS AND BIOPRODUCTS
(2023)
Article
Environmental Sciences
Rebeca Lopez-Serna, Silvia Bolado, Ruben Irusta, Juan J. Jimenez
Summary: This study presents the concentration data of veterinary drugs in microalgae biomass collected from photobioreactors fed with piggery wastewaters for the first time. A comprehensive sample preparation method is recommended to monitor all intended analytes, and a linear relationship between the concentrations measured in biomass and effluent has been observed for most of the drugs.
Article
Environmental Sciences
Abdurahman Hafez Mohammed Kashem, Probir Das, Mohammad AbdulQuadir, Shoyeb Khan, Mahmoud Ibrahim Thaher, Ghamza Alghasal, Alaa H. Hawari, Hareb Al-Jabri
Summary: The rapid development of the aquaculture industry has led to a significant increase in aquaculture wastewater generation. Microalgae bioremediation could be a cost-effective and environmentally friendly method for treating aquaculture wastewater and producing valuable microalgal biomass. This study investigated the feasibility of using microalgae to treat brackish wastewater generated from a commercial tilapia farm in Qatar. Four candidate strains (Haematococcus sp., Neochloris sp., Monoraphidium sp., and Nostoc sp.) were shortlisted based on their nitrogen assimilation, biomass yield, biomass quality, and ease of harvesting. Among them, Neochloris sp. showed the highest biomass yield and could potentially be a suitable candidate for aquaculture wastewater treatment.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Engineering, Environmental
Vanessa Rosana Ribeiro, Hector David Delgado Osorio, Amanda Canterle Ulrich, Tiele Medianeira Rizzetti, Andrea Sanchez Barrios, Rosana de Cassia de Souza Schneider, Lisianne Brittes Benitez
Summary: The study evaluated the bioremediation and bioelectricity production of synthetic wastewater in a microalgaemicrobial fuel cell system. The results showed that the combination of Escherichia coli and Desmodesmus subspicatus was most effective in bioelectricity generation.
JOURNAL OF WATER PROCESS ENGINEERING
(2022)
Review
Biotechnology & Applied Microbiology
Niwas Kumar, Chiranjib Banerjee, Sangeeta Negi, Pratyoosh Shukla
Summary: This review provides an overview on the key challenges, technological advancements, and economic and technical aspects of microalgal biomass harvesting techniques. It explores the potential of bioharvesting mediated by microbial, animal, and plant-based polymeric flocculants, highlighting their higher dewatering potential, lower toxicity, and eco-friendly properties.
CRITICAL REVIEWS IN BIOTECHNOLOGY
(2023)
Article
Agricultural Engineering
Chun-Yen Chen, Jhih-Ci Lu, Yu-Han Chang, Jih-Heng Chen, Dillirani Nagarajan, Duu-Jong Lee, Jo-Shu Chang
Summary: Microalgae, specifically Chlorella sorokiniana SU-9, can be cultivated heterotrophically to produce high-quality proteins comparable to fishmeal and soybean meal. Optimal culture parameters were determined, and under these conditions, SU-9 exhibited high biomass content, protein content, and productivity. The production cost of SU-9 can be significantly reduced, making it a potential protein substitute in aquafeed.
BIORESOURCE TECHNOLOGY
(2023)
Review
Agricultural Engineering
Hongliang Guo, Ying Zhao, Jo-Shu Chang, Duu-Jong Lee
Summary: Enzymatic hydrolysis is crucial for efficient biorefinery of lignocellulosic biomass. Understanding the properties of key enzymes and their interactions with biomass is essential for improving the process efficiency. This article provides an update on the research of key enzymes in lignocellulose biorefinery, including their properties, interactions with biomass, adsorption, and hydrolysis. The advanced analytical techniques for investigating these interactions and future research prospects are discussed.
BIORESOURCE TECHNOLOGY
(2023)
Review
Agricultural Engineering
Alvin B. Culaba, Andres Philip Mayol, Argel A. Bandala, Ronnie S. Concepcion Ii, Melchizedek Alipio, Wei-Hsin Chen, Pau Loke Show, Jo-Shu Chang, Jayne Lois G. San Juan, Aristotle T. Ubando
Summary: The increase in worldwide demand for energy is driven by population growth and economic development, leading to depletion of fossil fuel supplies and high greenhouse gas levels. Biorefineries, as a popular and carbon-neutral alternative, play a key role in the circular economy model. This paper critically reviews the challenges and future direction of biorefineries as an alternative carbon-neutral energy source.
BIORESOURCE TECHNOLOGY
(2023)
Article
Agricultural Engineering
Ajeet Singh Chauhan, Anil Kumar Patel, Chiu-Wen Chen, Jo-Shu Chang, Philippe Michaud, Cheng-Di Dong, Reeta Rani Singhania
Summary: Considering the increasing health concerns, urban population tends to adopt a healthy lifestyle and incorporate nutritional food supplements to mitigate common health risks. The consumption of omega-3 and omega-6 PUFAs is on the rise, thus alternative commercial production methods are being developed. Microbial sources are emerging platforms to meet the global demand for omega PUFAs. Marine oleaginous protist Aurantiochytrium sp. has been identified as a potential source for substantial production of DHA and SFA. The objective of this research was to enhance PUFA yield by optimizing glucose concentration and nitrogen ratio. The maximum lipid and DHA yield and content were achieved at 30 g/L glucose, while the relative PUFA content was highest at 10 g/L glucose, with remaining SFA potentially usable for biodiesel.
BIORESOURCE TECHNOLOGY
(2023)
Review
Biotechnology & Applied Microbiology
Chihe Sun, Xianzhi Meng, Fubao Sun, Junhua Zhang, Maobing Tu, Jo-Shu Chang, Alissara Reungsang, Ao Xia, Arthur J. Ragauskas
Summary: Enzymatic hydrolysis is a critical process in lignocellulosic biorefinery. However, there are limitations in high-solid conditions, leading to lower hydrolysis yields. This review summarizes the factors related to water, biomass components, and cellulase enzymes, and presents strategies to improve the hydrolysis reaction.
BIOTECHNOLOGY ADVANCES
(2023)
Article
Environmental Sciences
Shuo Li, Yanan Wu, Heshan Zheng, Hongbin Li, Yongjie Zheng, Jun Nan, Jun Ma, Dillirani Nagarajan, Jo-Shu Chang
Summary: Antibiotic contamination poses serious risks of ecotoxicity and resistance gene induction. Advanced oxidation processes (AOPs) have demonstrated effectiveness in the degradation of antibiotics. However, the production of degradation intermediates in the oxidation process raises concerns about potential ecological risks. In-depth investigations on the ecotoxicity and resistance genes induction of antibiotic degradation products are important for addressing the environmental problems of antibiotics.
Review
Environmental Sciences
Kuan-Yeow Show, Jo-Shu Chang, Duu-Jong Lee
Summary: This mini-review discusses the recalcitrance of acrylic acid and its biological degradation pathways, as well as the full-scale practices using anaerobic granulation technology for treating acrylic acid wastewater. It proposes that the granules can provide barriers for high-concentration acrylic acid, maintaining its high degradation rate without substrate inhibition. The potential of anaerobic granulation technology in handling high-strength recalcitrant wastewaters and improving process performances is highlighted.
ENVIRONMENTAL POLLUTION
(2023)
Article
Biotechnology & Applied Microbiology
Ngai Hei Ernest Ho, Sefli Sri Wahyu Effendi, Wan-Wen Ting, Ying-Chen Yi, Jie-Yao Yu, Jo-Shu Chang, I-Son Ng
Summary: This study investigates the evolution of PETase from IsPETase and identifies Aquabacterium parvum lipase (ApLip) as an evolutionary intermediate. ApLip-Ec exhibits high catalytic efficiency when expressed in Escherichia coli. In vitro testing reveals successful PET degradation with the synergism effect of ApLip-Ec and MHETase.
BIOCHEMICAL ENGINEERING JOURNAL
(2023)
Article
Agricultural Engineering
Yue Wang, Rongrong Lin, Yushuang Cao, Shuangfei Li, Rong Cui, Wanqian Guo, Shih-Hsin Ho, Yoong Kit Leong, Duu-Jong Lee, Jo-Shu Chang
Summary: This study explores the simultaneous removal of sulfamethoxazole (SMX) and production of short-chain fatty acids (SCFAs) by a microbial consortium dominated by Clostridium sensu stricto. The process involved anaerobic co-metabolism, resulting in the production of butyric acid, valeric acid, succinic acid, and caproic acid. Continuous cultivation achieved high SMX degradation rates and reduced the prevalence of antibiotic-resistant genes, providing a promising approach for efficient antibiotic elimination while generating valuable products (SCFAs).
BIORESOURCE TECHNOLOGY
(2023)
Article
Agricultural Engineering
Shuo Li, Yingnan Liu, Heshan Zheng, Junfeng Niu, Yoong Kit Leong, Duu-Jong Lee, Jo-Shu Chang
Summary: A composite of corn straw and sludge-derived biochar loaded with CoFe2O4 was prepared to activate peracetic acid for efficient degradation of tetracycline hydrochloride. The degradation pathway is primarily driven by singlet oxygen and involves the electron-rich groups on the biochar surface. The study provides new insights into metal-loaded biochar catalysis for efficient non-free radical degradation of tetracycline hydrochloride.
BIORESOURCE TECHNOLOGY
(2023)
Article
Engineering, Environmental
Yi-Ling Chang, Dillirani Nagarajan, Jih-Heng Chen, Chun Yen Chen, Yi-Ju Wu, Liang-Ming Whang, Duu-Jong Lee, Jo-Shu Chang
Summary: The objective of this study was to develop a functional microalgae-bacteria consortium for the treatment of dairy manure wastewater. By selecting appropriate strains and optimizing culture conditions, the treatment efficiency of the wastewater was improved. Analysis of the bacterial community revealed a significant shift after microalgal inoculation, and the designed microalgae-bacteria consortium achieved optimal microalgal biomass production and maximum nutrient removal efficiencies.
CHEMICAL ENGINEERING JOURNAL
(2023)
Review
Engineering, Environmental
Wei-Hsin Chen, Partha Pratim Biswas, Eilhann E. Kwon, Young-Kwon Park, Saravanan Rajendran, Lalitha Gnanasekaran, Jo-Shu Chang
Summary: Catalytic pyrolysis of plastics to produce oil is a promising and cost-effective solution with renewable and sustainable characteristics. This research compares the efficiency of statistical optimization techniques for catalytic plastic pyrolysis reactions and identifies key factors influencing oil production, such as the catalyst-to-plastic ratio and types of acidic catalysts. The results show that the optimal values of pyrolysis parameters, including reaction temperature and residence time, significantly impact the oil yield.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Environmental Sciences
Shuo Li, Yalun Yang, Shanshan Yang, Heshan Zheng, Yongjie Zheng, M. Jun, Dillirani Nagarajan, Sunita Varjani, Jo-Shu Chang
Summary: Plastics have become an essential part of life, but when they enter the environment, they break down into smaller fragments called microplastics (MPs) which are detrimental to the environment and human health. Bioremediation is considered the most environmentally friendly and cost-effective method for MP degradation, but there is limited knowledge about it. This review explores the sources and migration behavior of MPs, discusses biodegradation potential and mechanisms, analyzes the factors influencing biodegradation, and discusses the prospects and challenges of biodegradation technologies for MPs.
Review
Agricultural Engineering
Yoong Kit Leong, Jo-Shu Chang
Summary: This review provides a comprehensive analysis of microalgae-based biochar, including production techniques, applications, and chemical modifications, aiming to bridge the existing knowledge gap in this field.
BIORESOURCE TECHNOLOGY
(2023)
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)
