The ability of bacterial cultures to create biofilm brings a possibility enhance biological wastewater treatment efficiency. Moreover, the Anammox and Nitrosomonas species grow within same layer enabled one-stage system for nitrogen removal be designed. Such system, with Kaldnes rings as carriers growth, was tested in technical pilot plant scale (2.1 m3) at Himmerfjärden Waste Water Treatment Plant (WWTP) Stockholm region. directly supplied supernatant originating from dewatering digested...

Due to negative environmental effects of nitrogen discharge recipients and increasingly stringent effluent standards, effective removal is necessity. Biological methods are the simplest cheapest way treat wastewater; however, it may become an extremely expensive option when high influent concentrations measured there a lack biodegradable organic carbon. Therefore, great need find new solutions improve existing technologies. The deammonification excellent example such process that requires...

A biofilm system with Kaldnes carrier was used in these studies to cultivate bacteria responsible for both partial nitritation and Anammox processes. Due co-existence of oxygen oxygen-free zones within the depth, processes can occur a single reactor. Oxygen that inhibits process is consumed outer layer this way are protected from oxygen. The impact concentration on nitrogen removal rates investigated pilot plant (2.1 m3), supplied reject water Himmerfjärden Waste Water Treatment Plant....

Biological wastewater treatment using biofilm systems is an effective way to treat difficult wastewater, such as coke wastewater. The information about the structure and dynamics of this microbial community in biofilm, which are responsible for treatment, relevant context efficacy biochemical potential remove various pollutants. However, physico-chemical factors can influence significantly, causing performance disturbances. Therefore, we decided examine rotating biological contactor (RBC)...

With the increase in use and application of carbon nanomaterials frequent presence fluoroquinolones tetracyclines antibiotics aquatic environment, their interactions have attracted extensive attention.In this study, adsorption two antibiotics: oxytetracycline (OTC) ciprofloxacin (CIP) by four carbon-based (graphene oxide, reduced graphene multiwalled carbon-nanotubes, oxidized carbon-nanotubes) affected pH was investigated.The experiment performed steps: (i) OTC CIP at different values, (ii)...

ABSTRACT: In this study, a laboratory‐scale anammox process in membrane bioreactor (AnMBR) was used to startup the anaerobic ammonium oxidation (anammox) from conventional activated sludge. Stable operation achieved after 125 days. From that time, nitrogen load gradually increased. After six months, average removal efficiency exceeded 80%. The highest obtained special activity (SAA) 0.17 g ( ‐N + ‐N) (g VSS × d) −1 . Fluorescent situ hybridization also proved presence of bacteria, typically...

Nitrogen removal communities performing wastewater treatment consist of ammonia oxidisers, nitrite denitrifiers, and anammox bacteria, the proportion activity particular microbial groups depend not only on physiochemical parameters bioreactor, but also composition inoculum. Nitrifiers denitrifiers usually dominate in conventional systems due to fact that nitrification denitrification are most commonly used nitrogen processes. However, from economical point view case with high concentrations,...

Traditional nitrification/denitrification is not suitable for nitrogen removal when wastewater contains high concentrations of ammonium and low biodegradable carbon. Recently, a deammonification process was developed proposed as new technology treatment such streams. This relies on stable interaction between aerobic bacteria Nitrosomonas, that accomplish partial nitritation anaerobic Planctomycetales, which conduct the Anammox reaction. Simultaneous performance these two processes can lead...

There are certain well-known methods of diminishing concentrations nitrogen compounds, but they ineffective in case nitrogen-rich wastewater with a low content biodegradable carbon. Partial nitritation followed by anaerobic ammonium oxidation (Anammox) process appear to be an excellent alternative for traditional nitrification and denitrification. This paper presents the feasibility successful start-up Anammox laboratory-scale membrane bioreactor (MBR). It was shown that combination...

Wastewater containing nutrients like ammonia, nitrite, nitrate and phosphates have been identified as the main cause of eutrophication in natural waters. Therefore, a suitable treatment is needed. In classical biological processes, nitrogen phosphorus removal expensive, especially due to lack biodegradable carbon, thus new methods are investigated. this paper, possibility side stream after partial nitrification/Anammox process proposed. Research was carried out lab-scale vertical tubular...