Role of biochar amendment in mitigation of nitrogen loss and greenhouse gas emission during sewage sludge composting

Awasthi, Mukesh Kumar; Wang, Quan; Ren, Xiuna; Zhao, Junchao; Huang, Hui; Awasthi, Sanjeev Kumar; Lahori, Altaf Hussain; Li, Ronghua; Zhou, Lina; Zhang, Zengqiang

doi:10.1016/j.biortech.2016.07.128

Cited by 185 publications

(72 citation statements)

References 32 publications

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“…5a). The NH 4 –N contents in CK, AW, and PA2 rapidly increased during the first 8 d, which could have been due to the ammonification of organic N compounds (Awasthi et al, 2016; Luo et al, 2013). The maximum NH 4 –N content in these three treatments occurred on Day 8.…”

Section: Resultsmentioning

confidence: 99%

Adding Phosphate Fertilizer and Apple Waste to Pig Manure during Composting Mitigates Nitrogen Gas Emissions and Improves Compost Quality

Jiang

Kang²,

Yan

et al. 2019

J of Env Quality

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Calcium superphosphate and apple (Malus pumila Mill.) waste can be used for controlling N loss and improving compost quality during composting, whereas integrated addition of the two additives on composting process remains unexplored. Therefore, this study was conducted to investigate the effects of combined use of calcium superphosphate and apple waste on NH3 and N2O emissions and compost quality during pig manure and wheat (Triticum aestivum L.) straw composting. Mixtures of pig manure and wheat straw were combined with 6% phosphate fertilizer (PF), 15% apple waste (AW), 3% phosphate fertilizer + 7.5% apple waste (PA1), or 1.8% phosphate fertilizer + 10.5% apple waste (PA2) based on dry weight of the initial mixtures; a treatment with no additives served as a control (CK). The PF treatment took 3 d longer to reach thermophilic phase than the CK, PA1, and PA2 treatments. The treatments of PF and PA1 reduced NH3 and N2O emissions by 67 and 45%, respectively. Moreover, N loss in PF and PA1 treatments (31.8 and 30.1%, respectively) was significantly less than in the CK. A pot experiment showed that application of the compost with PA1 treatment could increase plant height and dried biomass of Chinese pakchoi (Brassica campestris L. ssp.). We recommend adding 3% phosphate fertilizer and 7.5% apple waste to pig manure during composting. Core Ideas Effect of phosphate fertilizer (PF) and apple waste (AW) on N conversion was studied. Combination of 3% PF and 7.5% AW is more beneficial for composting. Using 3% PF and 7.5% AW reduced NH3 and N2O by 67% and 40% during composting. The compost of 3% PF and 7.5% AW improved plant height and dried biomass.

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Section: Resultsmentioning

confidence: 99%

Adding Phosphate Fertilizer and Apple Waste to Pig Manure during Composting Mitigates Nitrogen Gas Emissions and Improves Compost Quality

Jiang

Kang²,

Yan

et al. 2019

J of Env Quality

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“…The N 2 O content was analyzed with gas chromatography (Agilent Technologies 6890 N Network GC system, China) in 12 h as described by Colon et al . 44 Ammonia emission was measured by adsorbing the exhaust gas with H 3 BO 3 before titrated with HCl 3 . Phytotoxicity of the compost was evaluated by calculating germination index ( GI ) as described by Li et al .…”

Section: Methodsmentioning

confidence: 99%

“…Reducing the amount of PM and control the associated pollution has been regarded as one of the limiting factors for further development of the pig enterprise 2 . Composting is a traditional, effective method, which can not only reduce the amount of organic waste, but also transform animal manure and organic waste into an environmentally friendly organic fertilizer 3, 4 .…”

Section: Introductionmentioning

confidence: 99%

Apple pomace improves the quality of pig manure aerobic compost by reducing emissions of NH3 and N2O

Mao

Zhang

Li³

et al. 2017

Sci Rep

Self Cite

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“…Many researchers investigated the value-added biochar for soil carbon sequestration, which suggested the combination of biochar with composts before soil application [5]. Biochar mixed with sludge composite into landfill was known to apparently decrease nitrogen loss [6]. However, biochar application to soil became challenging because biochar is easily breakable and produces saw dust with low density.…”

Section: Introductionmentioning

confidence: 99%

Adsorption Characteristics of Ammonium Nitrogen and Plant Responses to Biochar Pellet

et al. 2018

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For feasibility of carbon sequestration as well as in the mitigation of greenhouse gases for application of biochar pellet, this experiment was conducted, focusing on the adsorption characteristics of NH 4 -N on biochar pellet mixed with different ratios of pig manure compost. For NH 4 -N adsorption on biochar pellets, the loading amount of biochar pellet was 211.5 mg in 50 mL of aqueous solution, and the adsorption fitted very well with Langmuir isotherm. The maximum adsorption and removal rates were 2.94 mg g −1 and 92.2%, respectively, in the pellet that contained 90% of biochar. It was also observed, by kinetic models, that NH 4 -N was adsorbed fast on biochar pellet with a combination ratio of 9:1 of biochar pellet/pig manure. It was further observed that the higher the amount of biochar contained in the biochar pellet, the greater the adsorption of NH 4 -N. For the plant response observed for lettuce, it was shown that the leaf biomass in plots treated with a 9:1 biochar/pig manure compost increased by approximately 13% compared with the leaf biomass in plots treated with the compost alone. The leaf biomass of the other treatments was higher than that of the control. This implies that the application of biochar pellets, regardless of the biochar contents, might be useful for soil carbon sequestration and greenhouse gas mitigation for agricultural practices.

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Role of biochar amendment in mitigation of nitrogen loss and greenhouse gas emission during sewage sludge composting

Cited by 185 publications

References 32 publications

Adding Phosphate Fertilizer and Apple Waste to Pig Manure during Composting Mitigates Nitrogen Gas Emissions and Improves Compost Quality

Adding Phosphate Fertilizer and Apple Waste to Pig Manure during Composting Mitigates Nitrogen Gas Emissions and Improves Compost Quality

Apple pomace improves the quality of pig manure aerobic compost by reducing emissions of NH3 and N2O

Adsorption Characteristics of Ammonium Nitrogen and Plant Responses to Biochar Pellet

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