کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
2092927 1081837 2006 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Changes in microbial and soil properties following amendment with treated and untreated olive mill wastewater
موضوعات مرتبط
علوم زیستی و بیوفناوری بیوشیمی، ژنتیک و زیست شناسی مولکولی بیوتکنولوژی یا زیست‌فناوری
پیش نمایش صفحه اول مقاله
Changes in microbial and soil properties following amendment with treated and untreated olive mill wastewater
چکیده انگلیسی

SummaryWe investigated the effect of untreated and biologically treated olive mill wastewater (OMW) spreading on the soil characteristics and the microbial communities. The water holding capacity, the salinity and the content of total organic carbon, humus, total nitrogen, phosphate and potassium increased when the spread amounts of the treated or untreated OMW increased. The OMW treated soil exhibited significantly higher respiration compared to the control soil. However, the C-CO2/Ctot ratio decreased from 1.7 in the control soil to 0.5 in the soil amended with 100 m3 ha−1 of untreated OMW. However, it slightly decreased to 1.15 in the soil amended with 400 m3 ha−1 of treated OMW. The treated OMW increased the total mesophylic number while the number of fungi and nitrifiers decreased. Actinomycetes and spore-forming bacteria were neither sensitive to treated nor to untreated OMW. The total coliforms increased with higher doses of treated and untreated OMW. A toxic effect of the untreated OMW appeared from 100 m3 ha−1. This toxicity was more significant with 200 m3 ha−1, where microflora of total mesophilic, yeasts and moulds, actinomycetes, and nitrifiers were seriously inhibited except for total coliforms and spore-forming bacteria.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Microbiological Research - Volume 161, Issue 2, 13 February 2006, Pages 93–101
نویسندگان
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