Characteristics of Start-Up Period in Biological Filters with Multiple Compounded Filling for Treating Low Concentration Domestic Sewage

Abstract:

The characteristics of sludge, the start-up and treatment effect of biological filters with multiple compounded filling are studied with low concentration domestic sewage as treating object. Experiment results shows that it spends 25 days to start up biological filters. The removal rate of COD, ammonia nitrogen, total nitrogen (TN) and total phosphorus (TP) are about 90%, 100%, 80% and 90% respectively. Meanwhile, the Biological electron microscope results show that anaerobic biological membrane presents deep black, more filamentous fungi and a small amount of Ciliates, while aerobic biological membrane presents yellow-green, close-grained bacteria micelle, micro-metazoans such as Aspidisca and Vorticella, proving the success of the biofilm formation.

• Periodical: Advanced Materials Research (Volume 777)
• Pages: 206-212
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.777.206
• Online since: September 2013
• Authors: Lu Ting Pan, Nai Yuan Zhang, Kun Wu, Wen Lei Wang
• Keywords: Bio-Filter, Low Concentration Domestic Sewage, Multiple Compound Filling, Start-Up Period

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