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首页> 外文会议>IWA(International Water Association) International Specialised Conference on Wastewater Treatment for Nutrient Removal and Reuse; 20040126-29; Bangkok(TH) >Nutrient removal and microbial granulation in an anaerobic process treating inorganic and organic nitrogenous wastewater
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Nutrient removal and microbial granulation in an anaerobic process treating inorganic and organic nitrogenous wastewater

机译：处理无机和有机含氮废水的厌氧工艺中的营养去除和微生物制粒

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The sustainable anaerobic nitrogen removal and microbial granulation were investigated by using a laboratory anaerobic granular sludge bed reactor, treating synthetic (inorganic and organic) wastewater and piggery waste. From inorganic synthetic wastewater, lithoautotrophic ammonium oxidation to nitriteitrate was observed by an addition of hydroxylamine. Also, the results revealed that the Anammox intermediates (particularly, hydrazine) contents in the substrate would be one of the important parameters for success of the anaerobic nitrogen removal process. The results from organic synthetic wastewater show that if the Anammox organism were not great enough in the startup of the process, denitritation and anaerobic ammonification would be a process prior to the Anammox reaction. The anaerobic ammonium removal from the piggery waste was performed successfully, probably due to the Anammox intermediates contained in the substrate. This reactor shows a complex performance including the Anammox reaction and HAP crystallization, as well as having partial denitritation occurring simultaneously. From the activity test, the maximum specific N conversion rate was 0.1 g NH_4-N/g VSS/day (0.77 g T-N/g VSS/day), indicating that potential denitritation is quite high. The NO_2-N/NH_4-N ratio to Anammox is 1.17. The colour of the biomass treating the piggery waste changed from black to dark red. It was also observed that the red-colored granular sludge had a diameter of 1-2 mm. The settleability assessment of the granular sludge revealed that the granular sludge had a good settleability even though it was worse than that of seed granular sludge.
机译：通过使用实验室厌氧颗粒污泥床反应器，对合成（无机和有机）废水和养猪废物进行处理，研究了可持续的厌氧脱氮和微生物造粒。从无机合成废水中，通过添加羟胺可观察到岩石自养铵被氧化为亚硝酸盐/硝酸盐。同样，结果表明，底物中厌氧氨氧化中间体（特别是肼）的含量将是成功完成厌氧脱氮过程的重要参数之一。有机合成废水的结果表明，如果厌氧氨氧化菌菌体在过程启动时不够强大，则脱氮和厌氧氨化将是厌氧氨氧化菌反应之前的一个过程。从猪场废物中成功去除厌氧铵，可能是由于基质中包含了厌氧氨氧化中间体。该反应器显示出复杂的性能，包括Anammox反应和HAP结晶，并且同时发生部分反硝化作用。根据活性测试，最大比氮转化率为0.1 g NH_4-N / g VSS /天（0.77 g T-N / g VSS /天），表明潜在的反硝化作用非常高。 NO_2-N / NH_4-N与Anammox的比率为1.17。处理猪场废物的生物质的颜色从黑色变为深红色。还观察到红色颗粒污泥的直径为1-2mm。粒状污泥的沉降性评估表明，粒状污泥的沉降性即使比种子粒状污泥差，也具有良好的沉降性。

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