Article
Engineering, Environmental
Prakash Bhuyar, Marlen Trejo, Natthawud Dussadee, Yuwalee Unpaprom, Rameshprabu Ramaraj, Kanda Whangchai
Summary: The study explored the optimal conditions for cultivating Chlorella vulgaris from wastewater treatment effluent from a tilapia culture pond. It was found that fishpond wastewater is a valuable source of nutrients for algae growth and biofuel production.
WATER SCIENCE AND TECHNOLOGY
(2021)
Article
Environmental Sciences
Rajendran Varunraj, Uthayakumar Priyadharshini, Kannusamy Vijay, Srinivasan Balamurugan
Summary: This study demonstrated the improvement of Chlorella vulgaris strain through adaptive laboratory evolution (ALE) under hypersaline conditions, resulting in increased lipid production without compromising cellular physiological parameters. The evolved strains showed higher lipid accumulation and antioxidant potential, while experiencing decreased carbohydrate and protein content.
ENVIRONMENTAL RESEARCH
(2023)
Article
Environmental Sciences
Suiyi Li, V. Meenakshi, S. Nithya, Sulaiman Ali Alharbi, Saleh H. Salmen, Rajasree Shanmuganathan, Li Zhang, Changlei Xia
Summary: The effect of wastewater and NaCl mixture on microalgae growth was studied and it was found that increasing salinity in wastewater led to decreased biomass production but significantly increased lipid content. The addition of Fe2O3 nanoparticles enhanced microalgae productivity. Chlorella vulgaris was identified as a suitable candidate for treating high salinity wastewater.
ENVIRONMENTAL RESEARCH
(2023)
Article
Environmental Sciences
Mehdi Khoshnamvand, Parichehr Hanachi, Saeed Ashtiani, Tony R. Walker
Summary: The presence of nanoplastics in aquatic media raises concerns about their adverse effects on aquatic organisms. This study found that amino-functionalized polystyrene nanoplastics of smaller sizes exhibited greater toxicity on green microalgae compared to larger nanoplastics. Additionally, high concentrations of nanoplastics can affect the morphology and shape of algae, potentially limiting material transport, gas exchange, and energy transfer.
Article
Microbiology
Tan Liu, Zhihui Chen, Yunhua Xiao, Mingmin Yuan, Chenkai Zhou, Gang Liu, Jun Fang, Bo Yang
Summary: Nitrogen limitation and starvation can increase the lipid content of microalgal cells but decrease biomass productivity, pigment concentration, and protein content. Three-day nitrogen starvation is a suitable strategy to produce lipid-rich biomass and causes changes in cell morphology. Saturated fatty acids dominate, making microalgae a potential feedstock for biodiesel production.
Article
Biotechnology & Applied Microbiology
Ana Elisa Rodrigues-Sousa, Ivan V. O. Nunes, Alex B. Muniz-Junior, Joao Carlos M. Carvalho, Lauris C. Mejia-da-Silva, Marcelo C. Matsudo
Summary: This study examined the cultivation of Chlorella vulgaris using secondary effluent from the dairy industry. Results showed that nitrogen supplementation based on Bold medium ratio was the most effective in improving biomass growth. The final biomass composition displayed satisfactory levels of proteins and lipids, with concentrations of specific fatty acids.
BIOCHEMICAL ENGINEERING JOURNAL
(2021)
Article
Biotechnology & Applied Microbiology
Qian Lu, Chunyang Ma, Lei Guo, Yujie Lu, Huankai Li
Summary: Simultaneous inoculation of microalgae and yeast is the optimal strategy for utilizing starch processing effluent for biofuel feedstock production. Under the optimal conditions, the lipid yield and carbon-conversion ratio of the co-fermentation reached 1.81 g/L and 82.53%, respectively, which were higher than those of the monoculture model. Co-fermentation of microalgae and yeast in starch processing effluent is a promising and applicable strategy for wastewater remediation and low-cost biofuel feedstock production.
FERMENTATION-BASEL
(2023)
Article
Biotechnology & Applied Microbiology
Balli Gauje, Waetsi Nya Yusufu, Mathias Ahii Chia, Sunday Paul Bako, David S. Abolude, Yahuza Tanimu, Judy Atabat Adudu, Stanley Irobekhian Reuben Okoduwa
Summary: This study investigated the phytoremediation potential of Chlorella sorokiniana in tannery effluent. The results showed that Chlorella efficiently reduced heavy metal contaminants and produced high dry weight and lipid yield.
JOURNAL OF APPLIED PHYCOLOGY
(2022)
Article
Environmental Sciences
Khathapon Pinpatthanapong, Wanthanee Khetkorn, Ryo Honda, Songkeart Phattarapattamawong, Chairat Treesubsuntorn, Namchai Panasan, Patcharaporn Boonmawat, Yada Tianthong, Sukhom Lipiloet, Sovannlaksmy Sorn, Rumpa Jutakanoke, Pradthana Prachanurak, Jarungwit Boonnorat
Summary: This research investigates the effects of landfill leachate effluent concentrations on stress-induced microalgae lipid production and post-treatment micropollutant degradation. The results indicate that the effluent concentration is positively correlated with lipid production and micropollutant degradation. The optimal condition for microalgae cultivation is 50-75% effluent concentration under 18 hours hydraulic retention time.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2022)
Article
Engineering, Chemical
Yasmin O. Carvalho, Weverton V. Oliveira, Rogerio L. Pagano, Cristina F. Silva
Summary: Modeling biotechnological processes using an artificial neural network proved successful in predicting the main variables of tertiary treatment with Chlorella vulgaris. The network architecture [4,7,2] with a hyperbolic tangent activation function provided the best model performance for real applications.
CHEMICAL ENGINEERING & TECHNOLOGY
(2021)
Article
Biotechnology & Applied Microbiology
Andre E. P. Cunha, Josivaldo R. Satiro, Bruno P. Escobar, Rogerio Ms Simoes
Summary: In this study, activated carbon fibers with high specific surface area were prepared from oyster shells, which showed excellent adsorption performance and cyclic regeneration ability.
JOURNAL OF CHEMICAL TECHNOLOGY AND BIOTECHNOLOGY
(2023)
Article
Environmental Sciences
M. Sangeetha, P. Boomadevi, Amany Salah Khalifa, Kathirvel Brindhadevi, Manigandan Sekar
Summary: The high price and depletion of petroleum fuel demand pushes the search for alternatives. The fossil fuel shortage has worsened in recent years due to rapid population growth. This paper analyzes the effects of additives on chlorella microalgae biofuel through experimental methods, finding that nanoparticles such as CNT and alumina reduce emissions and improve combustion and performance qualities.
Article
Agriculture, Multidisciplinary
Greta Canelli, Patricia Murciano Martinez, Sean Austin, Mark E. Ambuhl, Fabiola Dionisi, Christoph J. Bolten, Roberta Carpine, Lukas Neutsch, Alexander Mathys
Summary: This study investigated the composition and morphology of cell wall polysaccharides in heterotrophic Crypthecodinium cohnii and Chlorella vulgaris during growth. Glucose was found to be the major component of CWPSs and exopolysaccharides in C. cohnii, while C. vulgaris exhibited changes in cell wall thickness at different growth stages. Understanding microalgae cell wall structure can aid in developing more efficient biorefinery approaches.
JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY
(2021)
Article
Engineering, Environmental
Malihe Barahoei, Mohammad Sadegh Hatamipour, Saeed Afsharzadeh
Summary: This study investigated the suitability of using Chlorella vulgaris for brackish water desalination, finding that modifying the culture medium resulted in enhanced microalgae growth and salt removal efficiency. The results suggest that Na+ ions are adsorbed on the Chlorella vulgaris cell surface, contributing to the desalination process.
PROCESS SAFETY AND ENVIRONMENTAL PROTECTION
(2021)
Article
Environmental Sciences
Tahir Fazal, Muhammad Saif Ur Rehman, Fahed Javed, Mueed Akhtar, Azeem Mushtaq, Ainy Hafeez, Aamir Alaud Din, Javed Iqbal, Naim Rashid, Fahad Rehman
Summary: Microalgae-led wastewater treatment using Chlorella vulgaris shows promising results in terms of growth, dye decolorization, and COD removal. Cultivation in diluted textile wastewater leads to higher growth rate, dye decolorization, and COD efficiency compared to undiluted wastewater. This study suggests that Chlorella vulgaris can be cultivated in both types of wastewater for biodiesel production, with better results observed in diluted wastewater.
Article
Energy & Fuels
Marcin Debowski, Marta Kisielewska, Joanna Kazimierowicz, Marcin Zielinski
Summary: The production and consumption of confectionery products have been increasing globally, leading to a greater focus on effectively managing the wastewater generated. A study was conducted using a specially designed anaerobic reactor with labyrinth flow to explore the potential of utilizing high-load sewage from the confectionery industry for biogas production. The research aimed to determine the optimal parameters for anaerobic digestion to remove pollutants efficiently and achieve high methane production. The results showed that an organic loading rate (OLR) of 5.0-6.0 g COD/L center dot d resulted in the highest methane generation of 94.7 +/- 6.1 to 97.1 +/- 5.1 L CH4/d, with a high COD removal rate of 75.4 +/- 1.5 to 75.0 +/- 0.6%. The FOS/TAC ratio was below 0.4, indicating reactor stability, and the pH level was around 7.15 +/- 0.04 at OLR 5.0 g COD/L center dot d and 7.04 +/- 0.07 at OLR 6.0 g COD/L center dot d.
Article
Energy & Fuels
Marcin Zielinski, Marcin Debowski, Joanna Kazimierowicz, Izabela Swica
Summary: The increasing concentration of anthropogenic CO2 in the atmosphere is causing a global environmental crisis, forcing significant reductions in emissions. Among the existing CO2 capture technologies, microalgae-guided sequestration is seen as one of the more promising and sustainable solutions. This article compares CO2 emissions in the EU with other global economies, outlines EU's climate policy and regulations, and summarizes the current state of microalgal cultures and their importance in CO2 storage and utilization. It also discusses the barriers to large-scale implementation of microalgae-based systems and the challenges posed by unsuitable climate conditions.
Article
Environmental Sciences
Joanna Kazimierowicz, Marcin Debowski, Marcin Zielinski
Summary: The feasibility of applying Advanced Oxidation Processes (AOP) harnessing Fenton's and Fenton-like reaction to pharmaceutical sewage sludge (PSS) pre-treatment prior to anaerobic digestion (AD) was investigated. The results showed that the use of AOP significantly reduced PSS toxicity and improved methane fermentation efficiency. Therefore, research has proven that AOP can be used to improve the efficiency of AD of PSS.
INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH
(2023)
Article
Chemistry, Multidisciplinary
Joanna Kazimierowicz, Marcin Debowski, Marcin Zielinski
Summary: This study investigated the evolution of a Chlorella sp. monoculture into microalgal-bacterial granular sludge (M-BGS) during the treatment of liquid fraction from the dewatering of digested sewage sludge (LF-DSS) in a hybrid photo-bioreactor (H-PBR). The M-BGS reached a stable taxonomic and morphological structure after 60 days of operation, with a biomass primarily composed of Chlorella sp., Microthrix parvicella, and filamentous bacteria. The presence of a higher bacteria abundance led to a faster-growing M-BGS biomass and improved removal of TOC and COD from the LF-DSS.
APPLIED SCIENCES-BASEL
(2023)
Article
Chemistry, Multidisciplinary
Marcin Debowski, Joanna Kazimierowicz, Marcin Zielinski
Summary: Chemical toilets are becoming more prevalent, especially in tourist destinations where waste treatment systems are lacking. In this study, the viability of anaerobic digestion for chemical toilet sewage (CTS) co-fermented with maize silage biomass was tested. It was found that CTS does not hinder anaerobic digestion as long as it is not more than 30% of the diluting fluid. The biogas yield reached 400 cm(3)/gVS, with 57 +/- 2.6% methane content.
APPLIED SCIENCES-BASEL
(2023)
Article
Biochemistry & Molecular Biology
Joanna Kazimierowicz, Marcin Debowski, Marcin Zielinski
Summary: The bioconversion of organic waste to biohydrogen via dark fermentation (DF) has limitations, but pretreating aerobic granular sludge (AGS) with solidified carbon dioxide (SCO2) can increase biohythane production. Increasing SCO2 doses resulted in higher concentrations of COD, N-NH4+, and P-PO43- in the supernatant. At a SCO2/AGS ratio of 0.3, the highest yield of biohythane production, with 79.0 +/- 6% CH4 and 8.9 +/- 2% H-2, was obtained.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2023)
Article
Chemistry, Multidisciplinary
Marcin Zielinski, Marcin Debowski, Paulina Rusanowska, Joanna Kazimierowicz
Summary: The increase in poultry meat consumption has led to the growth of meat-processing plants and an increase in wastewater generation. Anaerobic digestion is a preferred method for treating this waste. The use of electromagnetic microwave radiation (EMR) as a heat source can enhance the anaerobic processing of high-load poultry slaughterhouse wastewater (H-LPSW). The best performance was achieved with an OLR of 3.0 kgCOD/dm(3)center dot d, producing 70.4 +/- 2.7% CH4. The effectiveness of EMR heating was influenced by the OLR rather than the way of heating, as determined by bacterial diversity analysis.
APPLIED SCIENCES-BASEL
(2023)
Article
Chemistry, Multidisciplinary
Joanna Kazimierowicz, Marcin Debowski, Marcin Zielinski
Summary: The regulations require thermal pre-treatment of post-slaughter waste before anaerobic digestion. The study investigates the use of simultaneous ultrasound heating and disintegration for the digestion of high-load slaughter poultry wastewater. Results show that the ultrasound thermal pre-treatment at 60 min and 90 degrees C achieves the highest efficiency of anaerobic digestion.
APPLIED SCIENCES-BASEL
(2023)
Article
Chemistry, Multidisciplinary
Joanna Kazimierowicz, Marcin Debowski, Marcin Zielinski
Summary: The aim of this study was to evaluate the effect of long-term municipal sewage sludge (MSS) pre-treatment with solidified carbon dioxide (SCO2) on anaerobic digestion (AD) conditions and performance. The experiments showed that SCO2 pre-treatment significantly improved methane production and feedstock mineralization, without negative effects on the continuous operation of the reactor.
APPLIED SCIENCES-BASEL
(2023)
Article
Chemistry, Multidisciplinary
Marcin Debowski, Marcin Zielinski, Joanna Kazimierowicz, Maria Walery
Summary: This study aimed to determine the feasibility of using biomass from cleansing water reservoirs for anaerobic digestion. The biomass of hydrophytes harvested from this area approximated 38,070 Mg FM/year. The biogas yield from emergent plants approximated 350 m³/MgVS, while that from submerged biomass reached 270 m³/MgVS.
APPLIED SCIENCES-BASEL
(2023)
Article
Chemistry, Multidisciplinary
Marcin Debowski, Marta Kisielewska, Marcin Zielinski, Joanna Kazimierowicz
Summary: In this study, ultrasonic pretreatment was used to enhance the solubility of microalgal-bacterial granular sludge. The results showed that the pretreatment significantly increased the organic matter concentration and improved the efficiency of anaerobic digestion. The highest methane yield and net energy output were achieved with 150 s of sonication.
APPLIED SCIENCES-BASEL
(2023)
Article
Chemistry, Multidisciplinary
Paulina Rusanowska, Marcin Zielinski, Magda Dudek, Marcin Debowski
Summary: This study tackles the problem of biomass harvesting in microalgae/cyanobacteria by using extracellular polymeric substances. The addition of these substances increases the biomass concentration and improves sedimentation efficiency.
APPLIED SCIENCES-BASEL
(2023)
Article
Chemistry, Multidisciplinary
Marcin Zielinski, Marta Kisielewska, Marcin Debowski, Paulina Rusanowska, Anna Nowicka, Magda Dudek
Summary: This study utilized a new design of a pilot plant-scale hybrid anaerobic labyrinth-flow bioreactor (AL-FB) to improve the efficiency of anaerobic biodegradation and biogas production for dairy wastewater treatment. Results showed that an organic loading rate (OLR) of 4.0-8.0 g COD/L.center dot.d contributed to the highest methane yield and COD removal rate. Additionally, effluent recirculation enhanced the overall treatment efficiency.
APPLIED SCIENCES-BASEL
(2023)
Review
Energy & Fuels
Adam Starowicz, Marcin Zielinski, Paulina Rusanowska, Marcin Debowski
Summary: The conversion of organic matter into electricity is of interest to scientists worldwide, and microbial fuel cells (MFC) have been developed for this purpose. However, current MFCs do not meet the requirements for industrial-scale use due to barriers in extracellular electron transfer. Graphene, a newly developed material, shows promising results in improving electron transfer and overall output parameters. This article discusses the technologies and attempts by scientists worldwide to incorporate graphene into MFCs.
Article
Energy & Fuels
Magda Dudek, Anna Nowicka, Marcin Zielinski, Joanna Kazimierowicz, Marcin Debowski
Summary: This study determined the feasibility of using membrane vacuum filtration (MVF) to separate P. subcordiformis microalgae biomass and boost hydrogen yield. The results showed that the filtration method positively impacted hydrogen production, with higher technological performance observed in the variants using MVF.
INTERNATIONAL JOURNAL OF ENERGY AND ENVIRONMENTAL ENGINEERING
(2023)
