Article
Environmental Sciences
Alexia Saleme Aona de Paula Pereira, Jackeline de Siqueira Castro, Vinicius Jose Ribeiro, Maria Lucia Calijuri
Summary: This study focused on producing organomineral fertilizers using microalgae biomass generated from food industry wastewater. By adjusting the proportions of microalgae and synthetic fertilizers, the research analyzed the performance of the fertilizer. It was concluded that adding 40% microalgae to the fertilizer can reduce ammonia volatilization, while 24.55% microalgae proportion achieves the maximum nitrogen content.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Engineering, Environmental
Joisman Fachini, Cicero Celio de Figueiredo, Joaquim Jose Frazao, Sara Dantas Rosa, Juscimar da Silva, Ailton Teixeira do Vale
Summary: The study introduces a novel K-enriched sewage sludge biochar fertilizer that can improve crop K use efficiency. Enriched with KCl and K2SO4 using various technological methods, the K2O content in the fertilizer is significantly higher than pure SSB. The morphology and physical characteristics of the enriched OSSBs are more influenced by the form of the fertilizer rather than the source of K.
Article
Environmental Sciences
Mahmudul Islam Piash, Kazunori Iwabuchi, Takanori Itoh
Summary: Biochar-based fertilizers synthesized using a simple technique involving the co-pyrolysis of Ca-bentonite and chicken manure exhibit promising slow-release performance for phosphorous and potassium. The addition of Ca-bentonite significantly reduces the solubility of orthophosphates and slows down the release of potassium in soil. However, it has no significant impact on nitrogen release. The nutrient release from the biochar-based fertilizers also varies in different soil media.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Green & Sustainable Science & Technology
Joaquim Jose Frazao, Vinicius de Melo Benites, Vitor Mateus Pierobon, Joao Victor Schiavon Ribeiro, Jose Lavres
Summary: Improper disposal of poultry litter can lead to water eutrophication due to its high phosphorus content. Recycling phosphorus from poultry litter to produce organomineral fertilizer reduces dependence on finite mineral phosphorus reserves and minimizes phosphorus losses from soil. Field experiments showed that applying granular poultry litter-derived organomineral fertilizer had similar effects on maize and soybean as single superphosphate, but demonstrated higher relative agronomic effectiveness based on shoot dry weight.
Article
Environmental Sciences
Xiaoyu Ji, Xue Liu, Wulin Yang, Tao Xu, Xiang Wang, Xinquan Zhang, Longmian Wang, Xuhui Mao, Xu Wang
Summary: The study investigates the use of biochar electrodes in microbial electrolysis cells, with Fe2+ salt modification significantly improving electrochemical performance for higher phosphorus removal rates and reduced energy consumption. The P-enriched biochar retrieved from the process can serve as efficient phosphorus fertilizer and enhance soil for Pakchoi cultivation.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Chemistry, Multidisciplinary
Jittrera Buates, Tsuyoshi Imai
Summary: The study confirmed the feasibility of using biochar functionalized with layered double hydroxides as a fertilizer after phosphate treatment. It was found that P-BC-LDHs could improve lettuce growth quality, particularly at an application rate of 2.5%. Untreated samples showed a 17% reduction in biomass yield, while lettuce at the optimal dosage had at least a 24% increase in shoot and root length.
APPLIED SCIENCES-BASEL
(2021)
Article
Environmental Sciences
Hue T. T. Ngo, Stephanie J. Watts-Williams, Ashleigh Panagaris, Roslyn Baird, Michael J. McLaughlin, Timothy R. Cavagnaro
Summary: Achieving sustainable agricultural development requires efficient use of nutrient resources, and recovering nutrients from animal manures can play a key role in this. Formulating organic and inorganic phosphorus as organomineral fertilisers has positive effects on tomato growth and nutrition, while providing a sustainable use for animal waste.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Environmental Sciences
Hannes Herzel, Zeynep Aydin, Christian Adam
Summary: The study shows that adding K2SO4 can produce highly effective phosphorus potassium fertilizer, and experiments have confirmed the feasibility of reactions with mixtures at lower reaction temperatures. This method not only promotes plant absorption of phosphorus, but also helps potassium to be preferentially incorporated into silicates.
JOURNAL OF MATERIAL CYCLES AND WASTE MANAGEMENT
(2021)
Review
Chemistry, Multidisciplinary
Dan Luo, Luyao Wang, Hongyan Nan, Yijun Cao, Hui Wang, Thakur Vijay Kumar, Chongqing Wang
Summary: Phosphorus is a crucial element for agricultural production but its non-renewable phosphate ore resources are depleting. Phosphate release from wastewater treatment plants and inefficient crop fertilization causes pollution such as water eutrophication. Therefore, phosphorus recovery from wastewater through biochar adsorption is a promising alternative agricultural phosphorus source. Biochar, with its porous structure, large surface area, abundant surface groups, and high mineral content, can effectively adsorb phosphorus. Additionally, functionalization of biochar can improve its adsorption performance.
ENVIRONMENTAL CHEMISTRY LETTERS
(2023)
Article
Agricultural Engineering
Chengyou Sun, Heng Cao, Chao Huang, Ping Wang, Jinglin Yin, Hao Liu, Haoran Tian, Haiyin Xu, Jian Zhu, Zhiming Liu
Summary: This study developed an efficient and green adsorbent, ESBC, prepared by co-pyrolysis of eggshells and corn stalk. ESBC exhibited excellent phosphorus adsorption performance over a wide pH range and showed promise as a filter media for phosphorus removal in flow conditions. Additionally, ESBC demonstrated good phosphorus slow-release performance.
BIORESOURCE TECHNOLOGY
(2022)
Article
Environmental Sciences
Ling Ren, Yue Li, Kang Wang, Kejia Ding, Mengqiao Sha, Yuan Cao, Fanlong Kong, Sen Wang
Summary: The study showed that Fe-700-BC can effectively remove phosphorus from water bodies and promote plant growth. Additionally, Fe-700-BC had a good removal effect on different forms of phosphorus but had little impact on the microbial community in the sediment.
Article
Environmental Sciences
Mengjie Liu, Ronghua Li, Jingwen Wang, Xian Liu, Songling Li, Weibo Shen
Summary: This study investigated the adsorption of phosphate from water bodies using biochar prepared from dewatered dry sludge with different pyrolysis temperatures. The results showed that the adsorption of phosphate by biochar increased with an increase in pH. The adsorption data fitted the pseudo-second-order kinetic model, and the maximum adsorption capacity was 51.79 mg/g. The biochar prepared from dewatered dry sludge exhibited satisfactory phosphate removal performance and could be used as a slow-release phosphate fertilizer for plant growth.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Agricultural Engineering
Siraprapa Suwanree, Jesper T. N. Knijnenburg, Pornnapa Kasemsiri, Wasawat Kraithong, Prinya Chindaprasirt, Kaewta Jetsrisuparb
Summary: The conversion of sugarcane leaves into biochar-based slow release phosphorus fertilizer via pyrolysis can effectively mitigate the environmental burden of in-field burning. Pre- and post-pyrolysis treatments, including the addition of MgO and DAP, were found to enhance the slow release of phosphorus, making the engineered biochars attractive as P sources for crops.
BIOMASS & BIOENERGY
(2022)
Article
Environmental Sciences
Jinqi Zhu, Tingwei Rui, Yiwen You, Dong Shen, Tao Liu
Summary: A highly efficient phosphate adsorbent (MBC/Mg-La) based on magnetic biochar was synthesized through Mg-La modification. The modification significantly improved the phosphate adsorption capacity. The adsorbent showed excellent adsorption performance for low-concentration phosphate wastewater and maintained stable adsorption capacity within a wide pH range. It also exhibited high adsorption selectivity for phosphate, effectively inhibiting algae growth. The adsorbent can be easily recycled through magnetic separation and used as a phosphorus fertilizer to promote plant growth.
ENVIRONMENTAL RESEARCH
(2023)
Article
Green & Sustainable Science & Technology
Kamila Fernanda Rossati, Cicero Celio de Figueiredo, Gilberto de Oliveira Mendes
Summary: By evaluating the potential of phosphate release from sewage sludge biochar through the use of Aspergillus niger, we found that this fungus can solubilize phosphorus from biochar and improve its availability in soil. These findings contribute to a better understanding of the interaction between phosphate-solubilizing microorganisms, soil, and biochar, as well as the potential fertilizer value of sewage sludge biochar.
Article
Chemistry, Analytical
Jose Alexander Rodriguez, Jose Ferreira Lustosa Filho, Leonidas Carrijo Azevedo Melo, Igor Rodrigues de Assis, Teogenes Senna de Oliveira
Summary: This study proposed and evaluated a method of biochar stratification based on physical and chemical properties. The method considers biochar quality criteria, environmental constraints, and aims at improving plant growth in mining tailings.
JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS
(2022)
Review
Agronomy
Leonidas Carrijo Azevedo Melo, Johannes Lehmann, Jefferson Santana da Silva Carneiro, Marta Camps-Arbestain
Summary: The study shows that biochar-based fertilizers (BBFs) can increase crop productivity at very low application rates compared to conventional fertilizers. Cluster analysis reveals the potential of BBFs to enhance crop productivity in soils that are not responsive to conventional fertilizers. Additionally, BBFs produced at higher heating temperatures and with higher carbon content have a more pronounced effect on crop yield.
Article
Soil Science
Alvaro Jose Gomes de Faria, Sergio Henrique Godinho Silva, Leonidas Carrijo Azevedo Melo, Livia Botelho, Luiz Roberto Guimaraes Guilherme, Nilton Curi
Summary: This study compared the elemental contents obtained via pXRF with the traditional acid-digestion-based methods in tropical soils. The results showed that pXRF can accurately determine the contents of Ca, Cu, Fe, Mn, Cr, and Ni in these soils.
Article
Agriculture, Multidisciplinary
Ruan Carnier, Aline Renee Coscione, Cleide Aparecida de Abreu, Leonidas Carrijo Azevedo Melo, Andressa Ferreira da Silva
Summary: Biochar derived from coffee waste has been evaluated for its efficiency in sorption of heavy metals, and coffee parchment biochar has shown higher reliability in Pb sorption, with higher sorption capacity and lower metal release by desorption.
Article
Green & Sustainable Science & Technology
Cristiane Francisca Barbosa, Dehon Aparecido Correa, Jefferson Santana da Silva Carneiro, Leonidas Carrijo Azevedo Melo
Summary: This study found that using carbon-rich biochar as a matrix for loading nutrients can enhance fertilizer efficiency. The results of the experiment showed that biochar-based fertilizer enriched with nutrients improved nitrogen-use efficiency and increased the residual effect of fertilization.
Article
Geochemistry & Geophysics
Hercilia Samara Cardoso Costa, Edna Santos de Souza, Yan Nunes Dias, Leonidas Carrijo Azevedo Melo, Antonio Rodrigues Fernandes
Summary: Growing environmental pollution has led to the release of potentially toxic elements (PTE) that pose threats to ecosystems and human health, particularly in mining areas. Biochar and PTE-tolerant species have been used to remediate contaminated soil, offering environmentally friendly alternatives. This study assessed the impact of acai seed biochar on the bioavailability of PTEs in a multi-contaminated soil from a gold mining area in the Amazon. The results showed that biochar increased PTEs in the oxidizable fraction and improved their immobilization, but also led to lower dry matter yield and nutrient content in plants.
Article
Environmental Sciences
Barbara Olinda Nardis, Jose Romao Franca, Jefferson Santana da Silva Carneiro, Jenaina Ribeiro Soares, Luiz Roberto Guimaraes Guilherme, Carlos Alberto Silva, Leonidas Carrijo Azevedo Melo
Summary: This study investigates the adsorption and release of phosphorus from biochar enriched with aluminum and magnesium ions. The results show that biochar impregnated with magnesium ions achieved the highest phosphorus adsorption capacity and could release all adsorbed phosphorus in solution. The properties of biochar, such as chemical functional groups and surface area, were not significantly affected by the pyrolysis conditions.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Soil Science
Alvaro Jose Gomes de Faria, Sergio Henrique Godinho Silva, Renata Andrade, Marcelo Mancini, Leonidas Carrijo Azevedo Melo, David C. Weindorf, Luiz Roberto Guimaraes Guilherme, Nilton Curi
Summary: This study evaluated the efficiency of predicting soil organic matter (SOM) content using the Nix Pro (TM) color sensor and portable X-ray fluorescence (pXRF) spectrometry. By combining the data obtained from these sensors and training a random forest algorithm, accurate predictions of SOM content for various Brazilian soils were achieved.
Article
Environmental Sciences
Wendel Valter da Silveira Pereira, Silvio Junio Ramos, Leonidas Carrijo Azevedo Melo, Anderson Martins de Souza Braz, Yan Nunes Dias, Gabriela Vilhena de Almeida, Antonio Rodrigues Fernandes
Summary: A study was conducted to investigate the concentrations of rare earth elements (REEs), including cerium, lanthanum, scandium, and yttrium, in the surroundings of the artisanal gold mine in Serra Pelada, Brazil. The results showed higher levels of REEs in anthropized areas compared to the forest area, with agriculture being the most contaminated. However, the potential ecological risk indices were low in all areas, indicating no current environmental risks by the studied REEs.
ENVIRONMENTAL RESEARCH
(2022)
Article
Green & Sustainable Science & Technology
Jefferson Santana da Silva Carneiro, Dagna Ariele da Costa Leite, Gustavo Mesquita de Castro, Jose Romao Franca, Livia Botelho, Jenaina Ribeiro Soares, Juliano Elvis de Oliveira, Leonidas Carrijo Azevedo Melo
Summary: This article evaluates the effect of poultry litter biochar-graphene oxide composite as an adsorbent and fertilizer. The results show that PLB-GO has higher Cu and Zn adsorption capacity compared to PLB, and the release of adsorbed metals in water is low. Plant growth and nutrient uptake are positively influenced, with Cu availability increased by PLB application and Zn availability increased by PLB-GO application.
JOURNAL OF CLEANER PRODUCTION
(2022)
Article
Environmental Sciences
Aline do Amaral Leite, Leonidas Carrijo Azevedo Melo, Luis Carlos Colocho Hurtarte, Lucia Zuin, Cristiano Dela Piccolla, Don Werder, Itamar Shabtai, Johannes Lehmann
Summary: Pyrolysis of calcium-rich feedstock can generate phosphorus species that are not readily available to plants. However, enriching the feedstock with magnesium before pyrolysis can improve phosphorus availability. This study found that adding magnesium increased phosphorus availability in biochar and changed the phosphorus speciation.
Article
Soil Science
Alvaro Jose Gomes de Faria, Sergio Henrique Godinho Silva, Luiza Carvalho Alvarenga Lima, Renata Andrade, Livia Botelho, Leonidas Carrijo Azevedo Melo, Luiz Roberto Guimaraes Guilherme, Nilton Curi
Summary: By using portable X-ray fluorescence (pXRF), the results of the USEPA 3051a method for chemical elements can be accurately predicted, saving time and cost, and enabling large-scale geochemical characterization of tropical soils in an environmentally friendly way.
