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A biological activated carbon (BAC) filter was designed for treatment of micro-pollutants in Songhua River. The goal of the study was to characterize bacterial diversity over time and in different spatial regions of the filter and evaluate the effects on BAC performance. The bacterial activity varied over time and the length of the filter. SEM results showed biomass of BAC filter increased during...
The aim of this study was to evaluate the effect of powered activated carbon (PAC) addition on algal water treatment by immerged ultrafiltration (UF) membrane, in terms of trans-membrane pressure (TMP) and permeate quality. Experiments were performed with a hollow-fibre polyvinyl chloride (PVC) ultrafiltration membrane at a laboratory scale, based on a time sequence of 120min filtration and 1min backwashing...
Methyl tert-butyl ether (MTBE) is a common additive for producing a clean burning fuel with a higher Octane number and less emissions. Batch adsorptive capacity, continuous flow breakthrough and biological activated carbon (BAC) treatment experiments were conducted to compare the adsorptive capacities of four activated carbons for MTBE, to obtain the adsorptive capacity indicators useful for predicting...
In this paper, start-up of fiber activated carbon for natural start-up in a dynamic flow was discussed, and several physical-chemical, biochemical and microbiological methods (indicators), such as NH3-N, NO2-N, UV254, CODMn, DOC and AOC, were used to characterize the BAC biofilm's composition and activity. The results showed that the mature biofilm was observed after 53 days of incessant operation...
Phosphorus is one of the key elements necessary for the growth of microorganism in drinking water. It stimulates the growth and/or regrowth of microorganism and reduced biostability in drinking water. The demand for effective and inexpensive technology is to increase in response to the widespread recognition of the deleterious health effects of microorganism risk in pipe network. In this study, activated...
In this paper, the characteristics, size distribution and influencing factors of carbon fines and symbiotic relationships between attached bacteria and fines were detected and analyzed under traditional process conditions. The STXM measurement could be used to judge carbon fines. The number of fines in the GAC effluents during the filtration cycle contented a trend of rise first then fall. And the...
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