Nitrous oxide flux from komatsuna (Brassica rapa) vegetated soil: a comparison between biogas digested liquid and chemical fertilizer

Singla, Ankit; Dubey, Suresh Kumar; Iwasa, Hirokuni; Inubushi, Kazuyuki

doi:10.1007/s00374-013-0796-4

Cited by 20 publications

(2 citation statements)

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“…Lignocellulosic materials comprise a large fraction of municipal solid waste, crop residues, animal manures, forest residues and dedicated energy crops, also providing the required attributes for reducing greenhouse gases emission (Wyman and Hinman 1990 ; Wang et al 1999 ; Sánchez and Cardona 2008 ). Moreover, biofuel byproducts could also be utilized as soil amendments which can reduce demands of chemical fertilizers (Singla and Inubushi 2014 ; Singla et al 2013 , 2014a , b ).…”

Section: Introductionmentioning

confidence: 99%

An overview of key pretreatment processes for biological conversion of lignocellulosic biomass to bioethanol

2015

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Second-generation bioethanol can be produced from various lignocellulosic biomasses such as wood, agricultural or forest residues. Lignocellulosic biomass is inexpensive, renewable and abundant source for bioethanol production. The conversion of lignocellulosic biomass to bioethanol could be a promising technology though the process has several challenges and limitations such as biomass transport and handling, and efficient pretreatment methods for total delignification of lignocellulosics. Proper pretreatment methods can increase concentrations of fermentable sugars after enzymatic saccharification, thereby improving the efficiency of the whole process. Conversion of glucose as well as xylose to bioethanol needs some new fermentation technologies to make the whole process inexpensive. The main goal of pretreatment is to increase the digestibility of maximum available sugars. Each pretreatment process has a specific effect on the cellulose, hemicellulose and lignin fraction; thus, different pretreatment methods and conditions should be chosen according to the process configuration selected for the subsequent hydrolysis and fermentation steps. The cost of ethanol production from lignocellulosic biomass in current technologies is relatively high. Additionally, low yield still remains as one of the main challenges. This paper reviews the various technologies for maximum conversion of cellulose and hemicelluloses fraction to ethanol, and it point outs several key properties that should be targeted for low cost and maximum yield.

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Section: Introductionmentioning

confidence: 99%

An overview of key pretreatment processes for biological conversion of lignocellulosic biomass to bioethanol

2015

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“…Azolla compost and urea were applied at one time by spreading and incorporation to the surface soil 5 d after sowing seeds of upland kangkong. The growth of upland kangkong was determined after 35 d. Plant height (cm) was measured weekly and, at the end of the growth period, the aboveground plant material was harvested and the dry weight was determined (Singla et al 2013). Statistical analysis was performed using SPSS version 16.0 (IBM Corp 2008).…”

Section: Upland Kangkong Growthmentioning

confidence: 99%