scholarly journals Selective Enrichment of Two Different Types of Nitrospira-like Nitrite-oxidizing Bacteria from a Wastewater Treatment Plant

2013 ◽  
Vol 28 (2) ◽  
pp. 236-243 ◽  
Author(s):  
Hirotsugu Fujitani ◽  
Yoshiteru Aoi ◽  
Satoshi Tsuneda
Keyword(s):  
Wastewater Treatment ◽  
Wastewater Treatment Plant ◽  
Treatment Plant ◽  
Selective Enrichment ◽  
Different Types ◽  
Nitrite Oxidizing Bacteria

Performance of a Biotrickling Treating Ammonia from Wastewater Treatment Plant

2013 ◽  
Vol 781-784 ◽  
pp. 2080-2083
Author(s):  
Jian Wei Liu ◽  
Chen Lv
Keyword(s):  
Wastewater Treatment ◽  
Removal Efficiency ◽  
Wastewater Treatment Plant ◽  
Conventional Treatment ◽  
Treatment Plant ◽  
Experimental Results ◽  
Biotrickling Filter ◽  
Ammonia Oxidizing Bacteria ◽  
Flow Rates ◽  
Nitrite Oxidizing Bacteria

Biofiltration systems have become effective and inexpensive alternatives to conventional treatment systems. In this study, a functional bioreactor, e.g. the biotrickling filter was evaluated for its efficiencies in treating ammonia in the wastewater treatment plant at different loadings and its performance were studied. The experimental results showed that the influent ammonia can be efficiently removed in the biotrickling filter. The removal efficiency was above 90.7% when the inlet ammonia concentrations varied from 20 to 300 mg/m3and the flow rates were adjusted to from 0.61 to 1.06 m3/h.The results in microbial analyses indicated that the ammonia oxidizing bacteria and nitrite oxidizing bacteria were dominant in the biotrickling filter.

Analysis and balance of phosphorous removal from wastewater at urban wastewater treatment plant

2020 ◽  
Vol 15 (2) ◽  
pp. 142-151
Author(s):  
Peter Lukac ◽  
Lubos Jurik
Keyword(s):  
Wastewater Treatment ◽  
Wastewater Treatment Plant ◽  
Wastewater Treatment Plants ◽  
Sewage Treatment ◽  
Sewage Treatment Plant ◽  
Treatment Plant ◽  
Phosphorus Recovery ◽  
Anaerobic Sludge ◽  
Biological Phosphorus Removal ◽  
The Mean

Abstract:Phosphorus is a major substance that is needed especially for agricultural production or for the industry. At the same time it is an important component of wastewater. At present, the waste management priority is recycling and this requirement is also transferred to wastewater treatment plants. Substances in wastewater can be recovered and utilized. In Europe (in Germany and Austria already legally binding), access to phosphorus-containing sewage treatment is changing. This paper dealt with the issue of phosphorus on the sewage treatment plant in Nitra. There are several industrial areas in Nitra where record major producers in phosphorus production in sewage. The new wastewater treatment plant is built as a mechanicalbiological wastewater treatment plant with simultaneous nitrification and denitrification, sludge regeneration, an anaerobic zone for biological phosphorus removal at the beginning of the process and chemical phosphorus precipitation. The sludge management is anaerobic sludge stabilization with heating and mechanical dewatering of stabilized sludge and gas management. The aim of the work was to document the phosphorus balance in all parts of the wastewater treatment plant - from the inflow of raw water to the outflow of purified water and the production of excess sludge. Balancing quantities in the wastewater treatment plant treatment processes provide information where efficient phosphorus recovery could be possible. The mean daily value of P tot is approximately 122.3 kg/day of these two sources. The mean daily value of P tot is approximately 122.3 kg/day of these two sources. There are also two outflows - drainage of cleaned water to the recipient - the river Nitra - 9.9 kg Ptot/day and Ptot content in sewage sludge - about 120.3 kg Ptot/day - total 130.2 kg Ptot/day.

EVALUATION OF BIOMETHANE YIELDS FROM HIGH-ENERGY ORGANIC WASTE AND SEWAGE SLUDGE: A PILOT STUDY FOR A WASTEWATER TREATMENT PLANT

2019 ◽  
Vol 18 (9) ◽  
pp. 2023-2034 ◽  
Author(s):  
Agnieszka A. Pilarska ◽  
Krzysztof Pilarski ◽  
Boguslawa Waliszewska ◽  
Magdalena Zborowska ◽  
Kamil Witaszek ◽  
...  
Keyword(s):  
Wastewater Treatment ◽  
Pilot Study ◽  
Sewage Sludge ◽  
Wastewater Treatment Plant ◽  
Organic Waste ◽  
Treatment Plant ◽  
High Energy
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