کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4487459 1317031 2005 10 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Development of an advanced biological treatment system applied to the removal of nitrogen and phosphorus using the sludge ceramics
موضوعات مرتبط
مهندسی و علوم پایه علوم زمین و سیارات فرآیندهای سطح زمین
پیش نمایش صفحه اول مقاله
Development of an advanced biological treatment system applied to the removal of nitrogen and phosphorus using the sludge ceramics
چکیده انگلیسی

To develop a method of forming lake sediment into sludge ceramics with porosity and good biological adhesion for use as a medium for microorganisms in wastewater treatment, a study of the effects of forming conditions was conducted by adjusting the water content of sludge and compounding some additives. By adjusting the water content of the raw material at the kneading/pelletizing step to 40–42% and adding 3% waste glass to the raw materials to make up for the lack of flux, a sludge ceramic with a density in terms of specific gravity of saturated surface dry aggregate of about 1400 kg m−3 was formed. In addition, to develop a small-scale wastewater treatment system capable of removing nitrogen and phosphorus, a sludge ceramic was applied as a medium for biological filtration. The results indicated that the BOD removal nitrification rate were superior to those of conventional ceramic media, reached at 95.3% and 87.4%, respectively. The introduction of iron electrolysis resulted in high treatment performance achieving BOD levels of 10 mg L−1 or less, T-N of 10 mg L−1 or less and T-P of 1 mg L−1 or less.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Water Research - Volume 39, Issue 20, December 2005, Pages 4859–4868
نویسندگان
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