کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
8383170 1543291 2014 33 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Relationship between protozoan and metazoan communities and operation and performance parameters in a textile sewage activated sludge system
ترجمه فارسی عنوان
رابطه بین پروتوزان و جوامع متازون و پارامترهای عملکرد و عملکرد در یک سیستم لجن فعال سیستم فاضلاب نساجی
کلمات کلیدی
لجن فعال شاخص های بیولوژیک، قاعدگی، فاضلاب صنعتی نساجی،
موضوعات مرتبط
علوم زیستی و بیوفناوری علوم کشاورزی و بیولوژیک علوم کشاورزی و بیولوژیک (عمومی)
چکیده انگلیسی
The present study aims at investigating the possibility of assessing performance and depuration conditions of an activated sludge wastewater treatment plant through an exploration of the microfauna. The plant, receiving textile industrial (70%) and domestic (30%) sewage, consists of a two-step biological depurating plant, with activated sludge followed by a percolating system. A total of 35 samples were analyzed during five months, and 30 taxa of protozoa and small metazoa were found. Epistylis rotans, Vorticella microstoma, Aspidisca cicada and Arcella sp. were the most frequent protozoa identified. Several significant correlations between biological, physical-chemical and operational parameters were determined, but no significant correlations could be established between biological parameters and removal efficiencies. The Sludge Biotic Index (SBI) reflected the overall state of the community but only presented statistically significant correlations with the influent total suspended solids (TSS), total suspended solids in mixed-liquor (MLTSS) and dissolved oxygen (DO). The determination of key groups and taxa along with general community parameters showed to have potential value as indicators of the depuration conditions. Despite the impossibility of correlating biological parameters and the removal efficiencies, the present study attests the value of the microfauna to assess the operation of the activated sludge systems even in the case of non-conventional plants and/or plants receiving industrial sewage.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: European Journal of Protistology - Volume 50, Issue 4, August 2014, Pages 319-328
نویسندگان
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