Water and water purification technologies

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EFFECTIVE TECHNOLOGY OF BIOLOGICAL TREATMENT OF HIGH CONCENTRATED WASTEWATER

L. Sabliy

National university of water management and nature resources use,Rivne,Ukraine

e-mail: larisasabliy@mail.ru

It is presented the results of plant researches of anaerobic-aerobic wastewater treatment with high contaminants of organic matter with using the fibrous carrier for microorganisms immobilization. In the using proposed technology it can achieved high oxidation capacity of bioreactors in COD, g/(m3∙day), with decrease at degree of wastewater treatment in the system of anaerobic-aerobic bioreactors: in anaerobic І and ІІ, respectively, – 6200 and 3400; in anoxidic І and ІІ, respectively, – 800 and 400; aerobic – 100; at concentrations of immobilized biomass on carriers, г/дм3, in anaerobic conditions – 20-30, anoxidic – to 15 and aerobic – to 6.

On pilot plant establishment it was obtained the high results of wastewater treatment: effect on COD – 96-98,8%, on suspended solids – 98,5-99%, on ammonium nitrogen – 98-100%; the concentrations in treated water: COD – 19-66 mg/dm3,  ammonium nitrogen – 0-0,49 mg/dm3, nitrites – 0,03 mg/dm3, nitrates – 15,8 mg/dm3, respond to norms.

In the results of eating biomass bacterial part by hydrobionts of high trofical levels of  bioreactors biocenose it is provided reduction of biomass amount, increasing its mineralization (over 50%) and reduction of wastes treatment costs.

 Key words: wastewater, biological treatment, bioreactor, anaerobic conditions, aerobic condition, carrier for microorganisms immobilization.

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19.07.2013 at 4:18 pm

HYDRODINAMIC MODEL OF BIOREACTORS WITH IMMOBILIZED MICROORGANISMS AT WASTEWATER TREATMENT

L. Sabliy

National university of water management and nature resources use,Rivne,Ukraine

e-mail: larisasabliy@mail.ru

With the purpose of provision of necessary mass exchange it is developed new constructions of anaerobic and aerobic bioreactors with fibrous carriers for microorganisms immobilization. Constructive peculiarity of anaerobic bioreactor is the mixing system with using of pump, recirculated pipe and perforated pipe which is placed along of the central line of bioreactor. Developed constructions aerobic bioreactors lineament is along of central line of cylindrical plant placing of perforated piping for provision of air and intensive mass transfer between wastewater and immobilization hydrobionts on carriers and creating suspended condition for loosely swimming particles of activated sludge. It is proposed the model for calculation of laminar flow parameters for this constructions.

Developed mathematical model give a possibility to estimate the constructive elements of bioreactors such as plant dimension, perforated piping diameter and linear, perforation dimension at project works, reconstruction and building of wastewater stations on anaerobic-aerobic technology with immobilized microorganisms biocenos on the fibrous carriers.  

Key words: wastewater, biological treatment, bioreactor.

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19.07.2013 at 3:38 pm

ANAEROBIC-AEROBIC TREATMENT OF HIGHCONCENTRATED INDUSTRIAL WASTEWATER

L. Sabliy

National technical university of Ukraine “KPI”, Kiev, Ukraine

e-mail: larisasabliy@mail.ru

The effective staged anaerobic-aerobic technology is proposed for treatment of wastewater with high concentration of organic matters. The organic matters oxidation rates and the biomass  of the microorganisms immobilized on carriers at different treatment stage were investigated.

Key words: wastewater, biological treatment, bioreactor, immobilized microorganisms, oxidation rate.

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21.08.2011 at 7:33 pm