کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4997647 1459917 2017 38 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Feasibility of co-composting of sewage sludge, spent mushroom substrate and wheat straw
ترجمه فارسی عنوان
امکان ترکیب کامپوزیت لجن فاضلاب، بستر قارچ و کاه گندم
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی تکنولوژی و شیمی فرآیندی
چکیده انگلیسی
In this study, the lab-scale co-composting of sewage sludge (SS) with mushroom substrate (SMS) and wheat straw (WS) conducted for 20 days was evaluated. The addition of SMS evidently increased CO2 production and dehydrogenase activity. The combined addition of SMS and WS significantly improved the compost quality in terms of temperature, organic matter degradation and germination index, especially, reduced 21.9% of NH3 emission. That's because SMS and WS possessed the complementarity of free air space and contained plenty of degradable carbon source. The SMS could create a comfortable environment for the nitrifying bacteria and improve nitrification. The carbohydrates from combined addition of SMS and WS could be utilized by thermophilic microorganisms, stimulate ammonia assimilation and reduce NH3 emission. These results suggested that adding SMS and WS could not only improve the degradation of organic matter and the quality of compost product, but also stimulate ammonia assimilation and reduce ammonia emission.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Bioresource Technology - Volume 226, February 2017, Pages 39-45
نویسندگان
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