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This thesis is based on Heishizi landfill lechate treatment, contrapose its limitation, and aim at optimizing Without Biomass Retention Sequential Intensified Pretreatment Reactor's functional parameter and inproving treatment efficiency. Conclusions can be drew that: with HRT's droping, ammonia nitrogen removal rate decrease, and TN removal rate is highest in case of HRT=5.3d; ammonia nitrogen removal...
The aim of the investigation was to evaluate the nitrogen removal efficiency by using the combined partial nitrification and anaerobic ammonium oxidation (anammox) process for high-strength ammonium synthetic wastewater. The partial nitrification and anaerobic ammonium oxidation reactors were inoculate with domesticated sludge and operated respectively during the startup period. Subsequently, they...
In this study, according to the specific characteristics of acrylonitrile wastewater, Effective Microorganisms (EM) was used as Contact oxidation strain. The optimum conditions of EM bacteria domestication and contact oxidation treatment, such as pH, concentration and temperature, was confirmed. In addition, the results of aerobic treatment of wastewater suggested that COD effluent reduced to below...
To determine if anaerobic microniches are created in granular sludge exposed to oxygen where the refractory organics reduction in coking wastewater could occur and to assay the feasibility of the highly efficiently and stable operation of the micro-aerobic EGSB reactor for simultaneous removal of COD and NH3-N treating actual coking wastewater at 25-30°C, both anaerobic and microaerobic operations...
Biodegradation of Reactive Red 2(RR2) by anaerobic process UASB was investigated under thermophilic condition such as 55 plusmn 1degC. The quasi-steady state of the UASB reactor was achieved after 92 running days when the conditions were as follows: hydraulic retention time (HRT) 12 h, salinity 50000 mg/L, COD 1000 mg/L, RR2 100 mg /L. The removal efficiencies of COD and RR2 were about 20% and 92%,...
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