| Up to now, the anaerobic treatment process is still play an important role in the high concentration with organic wastwater from food industrial. But there is not a practically feasible and reliable technique for the high temperature, high concentration, complicated wastewater containing protein from corn processing enterprise.The hard-degradation organic pollutant and the high-concentration sulfate are the most difficult problems in the wastewater.1 Research purpose and contentThe high temperature, high concentration, complicated fractions starch wastewater from corn processing enterprise was treated as a subject in researching extreme temperature sludge domestication and culture technique as well as combining technology process, which was made up of innovative extreme temperature(70℃)hydrolyze acidification technology, immobilization acidification phase technology, extreme temperature two-phase anaerobic technology , high temperature aerobic technology and biological activity carbon(BAC).The thesis has revealed the physiological characteristic of the dominant bacterium lived in extreme temperature, change characteristic and mechanism of the factors that influence the acidification in extreme temperature, explained the treatment effect of the two-phase anaerobic reactor in extreme temperature, established the evaluating indicator system of effect on the extreme temperature acidification, and exploited an innovational treatment technology. The research was divided into three parts: the first part attached importance to study on the effect and mechanism of two-phase extreme temperature anaerobic treatment from the point of view of method, research on high temperature treatment and reusing technique of the wastewater from the point of view of the wastewater and primary discussed the assessment index system and evaluation method for hydrolysis acidification of the anaerobic treatment; the second part attached importance to study on the effect and mechanism of immobilization acidification and the mechanism of two-phase extreme temperature anaerobic treat.2 The mind results2.1 Results obtained from the study and evaluation on effect of acidification at extreme temperature (70℃) for treating Corn-Starch wastewaterThe effect of upflow acidification reactor, seeded with mesophilic granular sludge, at extrem temperature(70℃)treating corn–starch wastewater was the focus of a comparison study.The characterictics of COD,SS, alkalinity,pH VFA-and proteion changes in acidification process and infuence factors were studied The result showed that 70℃reactor achieved 28.5% acidification radio VFA as COD/g of influent COD and 0.142 h-1 acidification rate(Kh) and the COD removal was about 24.% ,SS removal :86% and Proteion hydrolysis ratio was 89.4%.The paper also proposed to assessment the acidication reactor performance using acidification ratio and acidification rate and proven that it was a effictive and feasility as an comprehensive evaluation index system.2.2 Results obtained from the two-phase of acidification and UASB at extremetemperture (70℃) for treating wastewater containing protein The effect of upflow acidification reactor(UAR) and anaerobic reacotor,(UASB) , seeded with mesophilic granular sludge at extrem temperature(70℃)treating wastewater containing protein was the focus of a study at different COD , different VLR and different C/N..of influent . At the conditions ,the characterictics of COD, VFA and VFA/COD,-and protein changes in acidification process and UASB were studied . The result showed that 70℃acidification reactor achieved 52.7% acidification radio VFA as COD/g of influent COD, 95% proteion hydrolysis ratio, 47%COD removal rate(%) in UAR and 95% in UASB .Total COD removal rate in two phase was 97% at low load. 57% COD removal rate in UAR phase and 88.1% in UASB phase. When C/N was changed from 14/1 to 300/1, COD removal rate in UAR phase was decreased obviously while it was increased in UASB . The total COD removal rate in two-phase was above 90%. The paper also assessment the performance of UAR and UASB using acidification ratio and COD removal rate, and proven that it was effective and feasility as a method treating wastewater containing protein.2.3 Results obtained from the Extreme Thermophilic(70℃),Combining Two-Phase Anaerobic/Activated sludge/Bio-Activated Charcoal for Treating Food WastewaterThis study was conducted to investigate the performance of combining two-phase anaerobic(TPA)/activated sludge(AS)/bio-activated charcoal(BAC), seeded with mesophilic sludge,for treating food wastewater at extreme temperature(70℃) to prove an useful and new treatment process to allow treated water to be reused for closed heat water circuits.The system had a total hydrulic retention time of 42h. Reactor performance was characterized by COD, VFA, pH, amino-acide. An oreall COD treatment efficiency of 99.62%, VFA and amino-acide of 100% and pH between 6.6-7.5were observed for the system.COD removal of acidification phase, methane phase, activated sludge and BAC was repectively 47.7%, 33.7%, 14.5%,and 1.1%.VFA removal of methane phase,activated sludge and BAC was respectively 56%, 21.2% and 21.8%. Amino- acid removal of methane phase, activated sludge and BAC was respectively 34.8%, 62% and 3%.2.4 Results obtained from Studies on isolation identification and morphology characteristics of anaerobic strain from extreme thermophlic (70℃) anaerobic reactorThe dominant bacteria in 70℃acidification phase was mainly hydrolysisosarcina and a few of short clostrium. In 70℃production methan phase, there were mainly methanosarcina and a little of methanobacterium.
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