Further, Real-Time PCR with Taqman probe revealed that 16S rDNA copy number of Nitrospira in aerobic reactor of the lab-scale system was 3.4×10~6/μg DNA of biofilm which is 300 times higher than that in the industrial system.
The best treatment performance was obtained in the test area packed with 24 stuffing units/m2 after 40 days; the removal rates for TN, TP, COD, Chla and turbidity were 53%, 35%, 50%, 5% and 44%, respectively. Algal growth was not affected by the biofilm treatment.
Mechanism studies on nitrogen removal when treating ammonium-rich leachate by sequencing batch biofilm reactor
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The nitrogen removal mechanism was studied and analyzed when treating the ammonium-rich landfill leachate by a set of sequencing batch biofilm reactors (SBBRs), which was designed independently.
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An aerobic sequencing batch biofilm reactor (SBBR) packed with Bauer rings was used to treat real domestic wastewater for simultaneous nitrification and denitrification.
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The SBBR is advantageous for creating an anoxic condition, and the biofilm can absorb and store carbon for good nitrification and denitrification.
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The efficiency of simultaneous nitrification and denitrification (SND) increased with increasing thickness of the biofilm.
Production technology with sodium sulfocyanate as a solvent, is adopted in most acrylic fibre plants in China. Wastewater is originated mainly from poiymerizing. recovery and spinning workshops of the plant.At present, no appropriate methods for dealing with this kind of water are available. An A/O system of biofilm is used to the wastewater, and the result shows that such a system is very effective. Effluent conforms with present discharge standard completely and can be led directly into the water bo...
Some characteristics of Anaerodic attached film expanded bed(AAFEB)reactor are studied when highly concentrated organic wastewater is treated at a moderate temperature range.When the biofilm in the reactor grows well, the organic load rate(OLR)of the reactor can be raised to 70 KgCOD/m~3·d, COD removal efficiency to about 90% The reactor is very insensitive to temperature changes.The COD removal efficiency does not change noticeably. when the influent COD concentration changes intensly.The influence o...
13 strains of bacteria able to decolorize various dyes were isolated from activated sludge and biofilm collected from textile wastewater treatment plants and were identified as Alteromonas, Klebsiella, Pseudomon-as, Enterobacter, Alcaligenes and Corynebacterium, Among 36 dyes tested, three strains of Alteromonas D4, D32 and D33 could decolorize 29 of them with a decoloring ability of 2.6 mg per gram of cell per hour. The optimum pH was 7-8 and the optimum temperature was 37℃. The growth of the bacteri...