Piggery Slurry Composting Using Batch Operating Autothermal Thermophilic Aerobic Digestion System
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چکیده
منابع مشابه
Finite-Dimensional Methods for Optimal Control of Autothermal Thermophilic Aerobic Digestion
An activated sludge process (ASP) is a biochemical process employed for treating sewage and industrial waste-water, which uses microorganisms and air (or oxygen) to biologically oxidize organic pollutants, producing a waste sludge (or floc) containing the oxidized material. The optimal operation of the biological treatment processes is a challenging task because of the stringent effluent requir...
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Autothermal thermophilic aerobic digestion (ATAD) is a promising process for sewage sludge stabilization. Batch experiments were conducted on sewage sludge collected from a municipal wastewater treatment plant in Shanghai, China, to evaluate the effectiveness of the ATAD system by determining changes in volatile suspended solids (VSSs) and to study its microbial diversity by denaturing gradient...
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Batch experiment was carried out in a simulated thermophilic aerobic digester to investigate the digestion process of one-stage autothermal thermophilic aerobic digester and to explore the sludge stabilization mechanism. Volatile solids removal was 38.4% at 408 h and 45.0% at 552 h. Chemical oxidation demand, total nitrogen, and ammonia nitrogen in supernatant increased rapidly up to 168 h, and...
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Composting is a natural process that turns organic material into a dark rich substance called compost. Aerobic Composting is the creation of compost that depends on bacteria that thrive in an oxygen rich environment. Aerobic bacteria manage the chemical process by converting the inputs (i.e. air, water and carbon and nitrogen rich materials) into heat, carbon dioxide and ammonium. The ammonium ...
متن کاملBiological heat potential and temperature effect of an autothermal thermophilic aerobic treatment (ATAT) system.
This study focused on the evaluation of the specific biological heat potential (hb) of a food-processing artificial wastewaterin the autothermal thermophilic aerobic treatment (ATAT) system. A novel experimental method was developed to evaluate the hb value by using the heat balance model under the steady state. This system was daily fed with oily and artificial wastewater at 21,460 mg l(-1) CO...
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ژورنال
عنوان ژورنال: Asian-Australasian Journal of Animal Sciences
سال: 2005
ISSN: 1011-2367,1976-5517
DOI: 10.5713/ajas.2006.273