Study On Industry Park Wastewater Treatment By Using A/SMBBR

With economic of constantly development,industrial of constantly increased, pollutionalso increasingly serious, so, on water pollution of governance imminent, and on July1,2003up implementation of town sewage processing factory pollutants emissions standard(GB18918-2002), more sewage integrated emissions standard (GB8978-96) more system,more full, and operation will has improve; In April24,2014, The new "environmentalprotection law" promulgated, marking China’s pay more attention to the environment, theenvironmental governance more rigorous. Based on this strictly of standard, The existingprocess of many companies and sewage factory has been unable to meet the emissionsrequirements, more and more enterprise and sewage factory attempts to change moreadvanced of process. According to the requirements of a wastewater treatment plant, basedon the original water quality, exploring used new process SMBBR and combinationprocess on industrial park wastewater of processing effect, selected best process way andrun parameter, application to II period engineering of construction operations.The new technology of SMBBR and its combination technology in this experiment, isbased on the traditional MBBR technology as the basis. using patents of the a method forpreparation of bagasse based biofilm (patent number:201010141466) of an improvedtechnology. Compared to traditional MBBR technology is concerned, has the followingadvantages:①new filler used in wear resistance, low cost.②Advanced surface processingtechnology and formula more favorable to microbial adhesion and proliferation.③fillersin the microbial biomass, conducive to treatment of waste water.④DNF409biofilm stagecast heightened activity of denitrifying bacteria, resistance, denitrification is more thorough.Experiment in the through inquiry two species programme (SMBBR process, andA/SMBBR combination process) on wastewater of processing effect and the stabilityanalysis, decided in II period engineering using in the used processing effect better,anti-impact capacity more strong of A/SMBBR process, experiment results showed that: inwater COD average for347.12mg/L, and NH3-N average for37.55mg/L, and TP averagefor6.20mg/L of situation, water COD average for40.33mg/L, NH3-N average value of 0.8mg/L, TP average is0.21mg/L are in compliance with the discharge standard ofpollutants for municipal wastewater treatment plants (GB18918-2002) a-level standard.And the combined process compared to the original process of wastewater treatment plant,COD, NH3-N,TP removal efficiencies were respectively10%,12%,5%, and has a strongimpact resistance and ensure the stability of the water. Experiments investigated thecombined process of run stable,of experiments under the influence of different parametersare determined based on SMBBR system of optimum operating conditions: HRT for15-20h,DO for1-2mg/L,T for15-25℃.Through this experiment, using A/SMBBR technology can be well applied to thewastewater treatment plant of industrial park wastewater treatment, for the application ofthe second phase project of the Industrial Park provides a reference. Moreover, the successof the pilot, also shows of refractory wastewater by combined process of SMBBR andprovides a new way of dealing with it.