バイオチャーと豚糞の好気性堆肥化における加熱、好熱、冷却、成熟段階での電場印加が温室効果ガス排出に及ぼす影響

Unofficial AI-generated summary based on the public title and abstract. Not an official translation.

🔬研究者:Researchers in agricultural waste management and GHG mitigation can build on this study to optimize electric field application parameters and explore scalability.

🏢実務担当者:Composting facility operators can consider electric field technology as a method to reduce emissions and improve nitrogen retention, but further validation at scale is needed.

🏛政策担当者:Policymakers may reference this study to support research into innovative waste treatment technologies that align with national GHG reduction targets.

好気性堆肥化は資源化の重要な技術であるが、多量の温室効果ガス排出と炭素・窒素の損失がその環境便益を制限している。バイオ炭の施用は広く応用されているが、電場補助がバイオ炭-豚糞堆肥化に及ぼす段階特異的な影響は依然として不明である。本研究は、バイオ炭-豚糞堆肥化の異なる段階における炭素と窒素の変換に対する電場施用の影響に焦点を当てる。堆肥堆の物理化学的特性、ならびに炭素と窒素の濃度および形態を分析した。4つの電場施用処理を設定した：堆肥化全期間を通じて連続施用（E1）、0〜2週目（E2）、3〜4週目（E3）、5〜6週目（E4）。結果は、電場処理群の全窒素含有量が初期レベルと比較して20.29〜36.58%高く、CK（10.91%）と比較して有意に高いことを示した。累積NH3排出量は44.58〜56.23%減少し、N2O排出量は8.99〜49.29%減少した。NH4+-N含有量はE3（3〜4週目の電場施用）で高く、NO3−-N含有量はE4（5〜6週目の電場施用）で高く、最適な窒素保持を示した。炭素変換に関しては、CO2およびCH4の累積排出量はそれぞれ6.22〜33.49%および3.5〜60.35%減少した。さらに、電場は有機物分解と芳香族物質の蓄積を促進し、効率的な炭素隔離を実現した。一方で、微生物群集の構造を変化させ、Pseudogracilibacillusを阻害し、norank_f_MWH-CFBk5、norank_f_Fodinicurvataceae、ならびにPseudomonadotaなどの好気性分解菌を活性化した。本研究は、電場処理が堆肥化の微小環境を最適化し温室効果ガス排出を削減することにより、効率的な廃棄物資源化を促進することを確認する。処理E1は最適な炭素保持能を示し、処理E3およびE4は最良の窒素保持性能を示した。

AI 翻訳（deepseek-v4-flash）。 正確を期す場合は下の原文を参照してください。

Aerobic composting is an important technology for resource utilization, yet substantial greenhouse gas emissions and carbon–nitrogen losses limit its environmental benefits. Although biochar amendment has been widely applied, the stage-specific effects of electric field assistance on biochar-pig manure composting remain unclear. This study focuses on the effects of electric field application on the transformation of carbon and nitrogen during different stages of biochar-pig manure composting. The physicochemical properties of the compost pile, as well as the concentrations and forms of carbon and nitrogen, were analyzed. Four electric-field application treatments were established: continuous application throughout the whole composting period (E1), weeks 0–2 (E2), weeks 3–4 (E3), and weeks 5–6 (E4). The results showed that the total nitrogen contents in the electric field treatment groups were 20.29–36.58% higher compared to the initial level and significantly higher compared to CK (10.91%). The cumulative NH3 emissions reduced by 44.58–56.23%, while N2O emissions declined by 8.99–49.29%. NH4+-N content was higher in E3 (electric field application during weeks 3–4), while NO3−-N content was higher in E4 (electric field application during weeks 5–6), indicating the optimal retention of nitrogen. In terms of carbon transformation, the cumulative emissions of CO2 and CH4 decreased by 6.22–33.49% and 3.5–60.35%, respectively. In addition, the electric field promoted organic matter degradation and aromatic substance accumulation, realizing efficient carbon sequestration. Meanwhile, it altered the structure of microbial communities, inhibited Pseudogracilibacillus, and activated norank_f_MWH-CFBk5, norank_f_Fodinicurvataceae, as well as aerobic degraders such as Pseudomonadota. This study confirms that electric field treatment facilitates efficient waste resource utilization by optimizing the composting microenvironment and cutting greenhouse gas emissions. Treatment E1 exhibited the optimal carbon retention capacity, while treatments E3 and E4 showed the best nitrogen retention performance.

• crossref https://doi.org/10.3390/agriculture16111212first seen 2026-06-02 05:24:46 · last seen 2026-06-13 04:49:42
• scopus https://api.elsevier.com/content/abstract/scopus_id/105041529205first seen 2026-06-18 06:21:19 · last seen 2026-07-09 05:56:29