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Title: Ozonized biochar filtrate effects on the growth of Pseudomonas putida and cyanobacteria Synechococcus elongatus PCC 7942

Journal Article · · Bioresources and Bioprocessing

Background: Biochar ozonization was previously shown to dramatically increase its cation exchange capacity, thus improving its nutrient retention capacity. The potential soil application of ozonized biochar warrants the need for a toxicity study that investigates its effects on microorganisms. Results: In the study presented here, we found that the filtrates collected from ozonized pine 400 biochar and ozonized rogue biochar did not have any inhibitory effects on the soil environmental bacteria Pseudomonas putida, even at high dissolved organic carbon (DOC) concentrations of 300 ppm. However, the growth of Synechococcus elongatus PCC 7942 was inhibited by the ozonized biochar filtrates at DOC concentrations greater than 75 ppm. Further tests showed the presence of some potential inhibitory compounds (terephthalic acid and p-toluic acid) in the filtrate of non-ozonized pine 400 biochar; these compounds were greatly reduced upon wet-ozonization of the biochar material. Nutrient detection tests also showed that dry-ozonization of rogue biochar enhanced the availability of nitrate and phosphate in its filtrate, a property that may be desirable for soil application. Conclusion: Ozonized biochar substances can support soil environmental bacterium Pseudomonas putida growth, since ozonization detoxifies the potential inhibitory aromatic molecules.

Research Organization:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States); USDOE Bioenergy Research Centers (BRC) (United States). Center for Bioenergy Innovation (CBI)
Sponsoring Organization:
USDOE Office of Science (SC), Biological and Environmental Research (BER)
Grant/Contract Number:
AC05-00OR22725
OSTI ID:
1847514
Journal Information:
Bioresources and Bioprocessing, Journal Name: Bioresources and Bioprocessing Journal Issue: 1 Vol. 9; ISSN 2197-4365
Publisher:
SpringerCopyright Statement
Country of Publication:
United States
Language:
English

References (29)

Interactions between plants and beneficial Pseudomonas spp.: exploiting bacterial traits for crop protection journal June 2007
Potential effects of biochar-based microbial inoculants in agriculture journal March 2018
Decomposition of humic acid and reduction of trihalomethane formation potential in water by ozone with u.v. irradiation journal June 1990
Degradation of wastewater from terephthalic acid manufacturing process by ozonation catalyzed with Fe2+, H2O2 and UV light: Direct versus indirect ozonation reactions journal September 2009
Investigating the mechanisms of biochar’s removal of lead from solution journal February 2015
The use of ozone in the remediation of polycyclic aromatic hydrocarbon contaminated soil journal April 2006
Mechanisms of metal sorption by biochars: Biochar characteristics and modifications journal July 2017
Health risk assessment of heavy metals in freshwater fish in the central and eastern North China journal August 2018
Biochar and bacteria inoculated biochar enhanced Cd and Cu immobilization and enzymatic activity in a polluted soil journal April 2020
Effect of pyrolysis temperature on potential toxicity of biochar if applied to the environment journal November 2016
Effects and mechanisms of biochar-microbe interactions in soil improvement and pollution remediation: A review journal August 2017
Effect of water washing on fuel properties, pyrolysis and combustion characteristics, and ash fusibility of biomass journal February 2013
Organic carbon and nutrient release from a range of laboratory-produced biochars and biochar–soil mixtures journal February 2013
Biochar inoculated with Pseudomonas putida improves grape (Vitis vinifera L.) fruit quality and alters bacterial diversity journal December 2020
Life in the ‘charosphere’ – Does biochar in agricultural soil provide a significant habitat for microorganisms? journal October 2013
Effects of Water Washing and Torrefaction Pretreatments on Corn Stalk Pyrolysis: Combined Study Using TG-FTIR and a Fixed Bed Reactor journal December 2016
Sustainable Chemistry: Solubilization of Phosphorus from Insoluble Phosphate Material Hydroxyapatite with Ozonized Biochar journal April 2020
Investigation into the Sources of Biochar Water-Soluble Organic Compounds and Their Potential Toxicity on Aquatic Microorganisms journal April 2016
Biochar Surface Oxygenation by Ozonization for Super High Cation Exchange Capacity journal September 2019
When Wavelengths Collide: Bias in Cell Abundance Measurements Due to Expressed Fluorescent Proteins journal June 2016
Quantifying the Total and Bioavailable Polycyclic Aromatic Hydrocarbons and Dioxins in Biochars journal February 2012
Molecular Characterization of Inhibiting Biochar Water-Extractable Substances Using Electrospray Ionization Fourier Transform Ion Cyclotron Resonance Mass Spectrometry journal November 2013
Transformation, Morphology, and Dissolution of Silicon and Carbon in Rice Straw-Derived Biochars under Different Pyrolytic Temperatures journal March 2014
Occurrence of the potent mutagens 2- nitrobenzanthrone and 3-nitrobenzanthrone in fine airborne particles journal January 2019
Ozonolysis Of Humic Acid And Its Effect On Decoloration And Biodegradability journal October 1995
Pseudomonas genomes: diverse and adaptable journal July 2011
Down-regulation of the caffeic acid O-methyltransferase gene in switchgrass reveals a novel monolignol analog journal January 2012
Surface oxygenation of biochar through ozonization for dramatically enhancing cation exchange capacity journal April 2018
Ozonized biochar filtrate effects on the growth of Pseudomonas putida and cyanobacteria Synechococcus elongatus PCC 7942 collection January 2022