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Biochar application to soil

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https://www.readbyqxmd.com/read/28231504/effect-of-biochar-on-cadmium-bioavailability-and-uptake-in-wheat-triticum-aestivum-l-grown-in-a-soil-with-aged-contamination
#1
Tahir Abbas, Muhammad Rizwan, Shafaqat Ali, Muhammad Zia-Ur-Rehman, Muhammad Farooq Qayyum, Farhat Abbas, Fakhir Hannan, Jörg Rinklebe, Yong Sik Ok
Cadmium (Cd) is a well-known and widespread toxic heavy metal while the effects of biochar (BC) on Cd bioavailability and toxicity in wheat, especially in soils with aged contamination are largely unknown. In the present study, the effect of rice straw BC on Cd immobilization in soil and uptake by wheat in an agricultural contaminated-soil was investigated. Different levels of rice straw BC (0%, 1.5%, 3.0% and 5% w/w) were incorporated into the soil and incubated for two weeks. After this, wheat plants were grown in the amended soil until maturity...
February 20, 2017: Ecotoxicology and Environmental Safety
https://www.readbyqxmd.com/read/28183027/effect-of-biochars-produced-from-solid-organic-municipal-waste-on-soil-quality-parameters
#2
P Randolph, R R Bansode, O A Hassan, Dj Rehrah, R Ravella, M R Reddy, D W Watts, J M Novak, M Ahmedna
New value-added uses for solid municipal waste are needed for environmental and economic sustainability. Fortunately, value-added biochars can be produced from mixed solid waste, thereby addressing solid waste management issues, and enabling long-term carbon sequestration. We hypothesize that soil deficiencies can be remedied by the application of municipal waste-based biochars. Select municipal organic wastes (newspaper, cardboard, woodchips and landscaping residues) individually or in a 25% blend of all four waste streams were used as feedstocks of biochars...
February 6, 2017: Journal of Environmental Management
https://www.readbyqxmd.com/read/28177416/effects-of-biochar-on-dispersibility-of-colloids-in-agricultural-soils
#3
K G I D Kumari, Per Moldrup, Marcos Paradelo, Lars Elsgaard, Lis W de Jonge
The mobility of water-dispersible colloids (WDCs) in soil may be influenced by soil management practices such as organic soil amendments. Biochar has recently been promoted as a useful soil amendment, and extensive research has been devoted to investigating its effects on soil macroscopic properties and functions. However, there is limited understanding of the effects of biochar application on micro-scale particle dynamics. We conducted a field study to investigate the effects of the application of birch ( spp...
January 2017: Journal of Environmental Quality
https://www.readbyqxmd.com/read/28177405/biochar-impacts-on-crop-productivity-and-greenhouse-gas-emissions-from-an-andosol
#4
Nobuhisa Koga, Seiji Shimoda, Yukiyoshi Iwata
To assess the impacts of biochar application on crop productivity and global warming mitigation, a 4-yr field experiment was conducted in a well-drained Andosol in northern Japan. Wood residue-derived biochar (pyrolyzed at >800°C) was applied at rates of 0, 10, 20, and 40 Mg ha for potatoes, winter wheat, sugar beet, and soybeans cultivated in rotation, and CO, NO, and CH emissions from the soil and yield and quality of the harvested materials were measured. Biochar application, regardless of rate, had no significant impact on yield and quality of the harvested materials, except for soybean grain yield...
January 2017: Journal of Environmental Quality
https://www.readbyqxmd.com/read/28161628/application-of-biochar-and-nitrogen-influences-fluxes-of-co2-ch4-and-n2o-in-a-forest-soil
#5
Iain Hawthorne, Mark S Johnson, Rachhpal S Jassal, T Andrew Black, Nicholas J Grant, Sean M Smukler
Nitrogen (N) fertilization of forests for increasing carbon sequestration and wood volume is expected to influence soil greenhouse gas (GHG) emissions, especially to increase N2O emissions. As biochar application is known to affect soil GHG emissions, we investigated the effect of biochar application, with and without N fertilization, to a forest soil on GHG emissions in a controlled laboratory study. We found that biochar application at high (10%) application rates increased CO2 and N2O emissions when applied without urea-N fertilizer...
February 2, 2017: Journal of Environmental Management
https://www.readbyqxmd.com/read/28150149/effects-of-maize-stover-and-its-derived-biochar-on-greenhouse-gases-emissions-and-c-budget-of-brown-earth-in-northeast-china
#6
Xu Yang, Yu Lan, Jun Meng, Wenfu Chen, Yuwei Huang, Xiaoyi Cheng, Tianyi He, Ting Cao, Zunqi Liu, Linlin Jiang, Jiping Gao
Concerns regarding rising population levels and the impacts of atmospheric greenhouse gas (GHG) emissions on world climate have encouraged effective alternative methods to increase agricultural production while mitigating climate change. Soil GHG emissions from maize (Zea mays L.) fields treated with stover and a stover-derived biochar amendment during two consecutive maize growing seasons were studied in a brown earth soil type in Liaoning, China. We considered three treatments: CK (basal application of mineral NPK fertilizer; 120 kg N ha(-1), 60 kg P2O5 ha(-1), and 60 kg K2O ha(-1), respectively), ST (maize stover application; 7...
February 1, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28135667/phytoextraction-of-toxic-trace-elements-by-sorghum-bicolor-inoculated-with-streptomyces-pactum-act12-in-contaminated-soils
#7
Amjad Ali, Di Guo, Amanullah Mahar, Ping Wang, Fang Ma, Feng Shen, Ronghua Li, Zengqiang Zhang
The increasing industrial, mining and agricultural activities have intensified the release of potential toxic trace elements (PTEs), which are of great concern to human health and environment. The alarming increase in PTEs concentration, stress the need for biotechnological remediation approaches. In order to assist phytoextraction of PTEs, different combinations of Streptomyces pactum (Act12) with biochar were applied to mining and industrial polluted soils of Shaanxi and Hunan Provinces of China, respectively...
January 27, 2017: Ecotoxicology and Environmental Safety
https://www.readbyqxmd.com/read/28135084/characterization-and-phenanthrene-sorption-of-natural-and-pyrogenic-organic-matter-fractions
#8
Jie Jin, Ke Sun, Ziying Wang, Yan Yang, Lanfang Han, Baoshan Xing
Pyrogenic humic acid (HA) is released into the environment during the large-scale application of biochar. However, the biogeochemistry of pyrogenic organic matter (PyOM) fractions and their sorption of hydrophobic organic compounds (HOCs) are poorly understood in comparison with natural organic matter (NOM) fractions. HA and humin (HM) fractions isolated from soils and the oxidized biochars were characterized. Sorption of phenanthrene (PHE) by these fractions was also examined. The characterization results demonstrate that pyrogenic HAs are different from natural HAs, with the former having lower atomic H/C ratios, more abundant aromatic C, and higher concentrations of surface carboxylic groups...
February 13, 2017: Environmental Science & Technology
https://www.readbyqxmd.com/read/28131448/impact-of-biochar-on-soil-n2o-emissions-under-different-biochar-carbon-fertilizer-nitrogen-ratios-at-a-constant-moisture-condition-on-a-silt-loam-soil
#9
Zhengjun Feng, Lizhong Zhu
Biochar amendment has been proposed as a potential solution for improving soil quality and suppressing greenhouse gas emission. Considering the serious nitrogen fertilizer overuse problem in China, it is important to investigate the effect of biochar on soil with excess nitrogen fertilizer. Therefore, two sets of soil column experiments were conducted to explore the effect of biochar on N2O emission from nitrogen fertilizer-overused soil. Three types of biochar (biochars pyrolzed at 300, 500 and 700°C, respectively) and one type of nitrogen fertilizer (ammonium sulfate) were investigated at varying application rates...
January 25, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28122292/petroleum-hydrocarbon-remediation-in-frozen-soil-using-a-meat-and-bonemeal-biochar-plus-fertilizer
#10
Erin M Karppinen, Katherine J Stewart, Richard E Farrell, Steven D Siciliano
Petroleum hydrocarbon (PHC) degradation slows significantly during the winter which substantially increases the time it takes to remediate soil in Arctic landfarms. The aim of this laboratory trial was to assess the potential of a meat and bonemeal (MBM) biochar to stimulate PHC degradation in contaminated soil collected from Iqaluit, Canada. Over 90 days, 3% (w/w) MBM biochar significantly increased F3- (equivalent nC16-C34) PHC degradation rate constants (k) in frozen soils when compared to the fertilizer (urea and monoammonium phosphate) control...
January 5, 2017: Chemosphere
https://www.readbyqxmd.com/read/28117702/adsorption-properties-of-nano-mno%C3%A2-biochar-composites-for-copper-in-aqueous-solution
#11
Li Zhou, Yifan Huang, Weiwen Qiu, Zhanxiang Sun, Zhongqi Liu, Zhengguo Song
There is a continuing need to develop effective materials for the environmental remediation of copper-contaminated sites. Nano-MnO₂-biochar composites (NMBCs) were successfully synthesized through the reduction of potassium permanganate by ethanol in a biochar suspension. The physicochemical properties and morphology of NMBCs were examined, and the Cu(II) adsorption properties of this material were determined using various adsorption isotherms and kinetic models. The adsorption capacity of NMBCs for Cu(II), which was enhanced by increasing the pH from 3 to 6, was much larger than that of biochar or nano-MnO₂...
January 20, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/28099087/effects-of-biochar-on-the-emissions-soil-distribution-and-nematode-control-of-1-3-dichloropropene
#12
Daniel J Ashworth, Scott R Yates, Guoqing Shen
Emissions of volatile soil fumigant 1,3-dichloropropene (1,3-D) from soil to air are a significant concern in relation to air quality, and cost-effective strategies to reduce such emissions are urgently required by growers to help them comply with increasingly stringent regulations. In this work, application of a rice husk-derived biochar to the surface of a sandy loam soil chamber reduced soil-air emissions of 1,3-D from 42% in a control (no biochar) to 8% due to adsorption onto the biochar. This adsorbed 1,3-D showed a potential for re-volatilization into air and solubilization into the soil-liquid phase...
February 2017: Journal of Environmental Science and Health. Part. B, Pesticides, Food Contaminants, and Agricultural Wastes
https://www.readbyqxmd.com/read/28074369/mitigating-cadmium-accumulation-in-greenhouse-lettuce-production-using-biochar
#13
Ruilun Zheng, Guoxin Sun, Cui Li, Brian J Reid, Zubin Xie, Bo Zhang, Qinghai Wang
Greenhouse experiments were conducted to investigate the influence of rice straw biochar (RSB) on soil cadmium (Cd) availability and accumulation in lettuce. The RSB was applied either in bands or broadcast in the test site of four greenhouses with soil Cd concentrations ranging from 1.70-3.14 μg g(-1). Biochar doses applied in bands were half of those broadcast. The Cd levels in the shoots of lettuce were observed to be reduced by up to 57% with increasing RSB application rate (0, 6, 12, 18 t ha(-1))...
January 10, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28063654/biochar-decreases-nitrogen-oxide-and-enhances-methane-emissions-via-altering-microbial-community-composition-of-anaerobic-paddy-soil
#14
Ning Wang, Zhi-Zhou Chang, Xi-Mei Xue, Jian-Guang Yu, Xiao-Xia Shi, Lena Q Ma, Hong-Bo Li
Biochar application to agricultural soil is an appealing approach to mitigate nitrous oxide (N2O) and methane (CH4) emissions. However, the underlying microbial mechanisms are unclear. In this study, a paddy soil slurry was incubated anaerobically for 14d with biochar amendments produced from rice straw at 300, 500, or 700°C (B300, B500, and B700) to study their influences on greenhouse gas emissions. Illumina sequencing was used to characterize shift of soil bacterial and archaeal community composition. After peaking at day 1, N2O emission then sharply decreased to low levels while CH4 started to emit at day 3 then continually increased with incubation...
January 4, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28057373/effects-of-the-amendment-of-biochars-and-carbon-nanotubes-on-the-bioavailability-of-hexabromocyclododecanes-hbcds-in-soil-to-ecologically-different-species-of-earthworms
#15
Bing Li, Hongkai Zhu, Hongwen Sun, Jiayao Xu
Biochar is a promising material used in soil amendment and carbon nanotubes may enter soil due to its increasing application. These carbonaceous materials may change the bioavailability of pollutants in soil. In this concern, 0.5% w/w multi-walled carbon nanotubes (MWCNTs) and 3 corn-straw biochars acquired at different pyrolyzing temperatures were used in soil amendment and their influences on the bioavailability of hexabromocyclododecanes (HBCDs), a brominated flame retardant, to 2 ecologically different earthworm species were studied...
March 2017: Environmental Pollution
https://www.readbyqxmd.com/read/28052201/rice-husk-silica-derived-nanomaterials-for-battery-applications-a-literature-review
#16
Yafei Shen
Silica-rich rice husk (RH) is an abundant and sustainable agricultural waste. The recovery of value-added products from RH or its ash to explore an economic way for the valorization of agricultural wastes has attracted wide attention. For instance, RH can be converted to biofuels and biochars simultaneously via thermochemical processes. In general, the applications of RH biochars include soil remediation, pollutant removal, silicon battery materials, and so forth. This review concludes recent progress in the synthesis of RH-derived silicon materials for lithium-ion battery (LIB) applications...
January 26, 2017: Journal of Agricultural and Food Chemistry
https://www.readbyqxmd.com/read/28050057/aggregate-size-distribution-in-a-biochar-amended-tropical-ultisol-under-conventional-hand-hoe-tillage
#17
Bernard Fungo, Johannes Lehmann, Karsten Kalbitz, Margaret Thionģo, Irene Okeyo, Moses Tenywa, Henry Neufeldt
Biochar (or pyrogenic organic matter) is increasingly proposed as a soil amendment for improving fertility, carbon sequestration and reduction of greenhouse gas emissions. However, little is known about its effects on aggregation, an important indicator of soil quality and functioning. The aim of this study was to assess the effect of Eucalyptus wood biochar (B, pyrolyzed at 550 °C, at 0 or 2.5 t ha(-1)), green manure (T, from Tithonia diversifolia at 0, 2.5 or 5.0 t ha(-1)) and mineral nitrogen (U, urea, at 0, or 120 kg N ha(-1)) on soil respiration, aggregate size distribution and SOC in these aggregate size fractions in a 2-year field experiment on a low-fertility Ultisol in western Kenya under conventional hand-hoe tillage...
January 2017: Soil & Tillage Research
https://www.readbyqxmd.com/read/28013080/bioavailability-assessment-of-thiacloprid-in-soil-as-affected-by-biochar
#18
Yao Li, Yulong Zhu, Xingang Liu, Xiaohu Wu, Fengshou Dong, Jun Xu, Yongquan Zheng
Biochars can significantly sorb pesticides, and reduce their bioavailability in agricultural soils. In this study, the effects of a type of biochar (BC500) on the sorption, degradation, bioaccumulation and bioavailability of thiacloprid, which is a commonly used insecticide, were investigated. The thiacloprid sorption constant (Kf values) increased by 14 times after 2% BC500 application, and the degradation of the insecticide decreased with increasing amounts of the biochars in the soil. Coupled with the exhaustive extraction and single-point Tenax method, the bioavailability of thiacloprid was predicted in the presence of the biochar...
December 18, 2016: Chemosphere
https://www.readbyqxmd.com/read/28008997/gas-entrapment-and-microbial-n2o-reduction-reduce-n2o-emissions-from-a-biochar-amended-sandy-clay-loam-soil
#19
Johannes Harter, Ivan Guzman-Bustamante, Stefanie Kuehfuss, Reiner Ruser, Reinhard Well, Oliver Spott, Andreas Kappler, Sebastian Behrens
Nitrous oxide (N2O) is a potent greenhouse gas that is produced during microbial nitrogen transformation processes such as nitrification and denitrification. Soils represent the largest sources of N2O emissions with nitrogen fertilizer application being the main driver of rising atmospheric N2O concentrations. Soil biochar amendment has been proposed as a promising tool to mitigate N2O emissions from soils. However, the underlying processes that cause N2O emission suppression in biochar-amended soils are still poorly understood...
December 23, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27931390/thermal-effects
#20
Ming Yan, Panyue Zhang, Guangming Zeng
This review focuses on the research literatures published in 2015 relating to topics of thermal effects in water pollution control. This review is divided into the following sections: biological nitrogen and phosphorus removal, wastewater treatment for organic conversion, industrial wastewater treatment, anaerobic digestion of sewage sludge and solid waste, sludge biochar preparation and application, pyrolysis of sewage sludge, reduction heavy metal in sewage sludge and soil, and other issues of wastewater and sludge treatment...
October 2016: Water Environment Research: a Research Publication of the Water Environment Federation
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