海泡石与生物质炭强化厌氧处理养猪废水

发布时间：2018-04-28 07:20

本文选题：养猪废水 + 厌氧反应器　；参考：《中国环境科学》2017年10期

【摘要】：探讨了海泡石与生物质炭投加对于厌氧技术处理养猪废水效能的影响,并通过三维荧光光谱(EEM)与傅里叶红外光谱(FTIR)分析了海泡石与生物质炭对于厌氧污泥溶解性微生物产物(SMP)及胞外聚合物(EPS)组分的影响.结果表明,投加海泡石与生物质炭后,提高了厌氧反应器对COD与氨氮的去除效果,对COD的平均去除率分别提高了10.1%与15.4%,对氨氮的去除率最高分别达到了50.9%和71.5%.对于厌氧污泥SMP而言,投加海泡石后,其FTIR光谱中2930cm~(-1)、1460cm~(-1)处的吸收峰减弱,表明其对养猪废水中大分子有机物的去除效果有一定程度增强;而投加生物质炭后,其EEM光谱中类富里酸(Ex/Em=340nm/420nm)的吸收峰强度降低,从而提高了厌氧反应器出水水质.对于厌氧污泥EPS而言,通过EEM分析可知,投加生物质炭后厌氧污泥中简单类蛋白(Ex/Em=225nm/340nm)吸收峰、色氨酸类蛋白(Ex/Em=280/340nm)吸收峰强度增大,蛋白含量的提高有利于厌氧污泥的絮凝;同时出现了辅酶F420(Ex/Em=420nm/470nm)的吸收峰,这表明加入生物质炭后,厌氧反应器内产甲烷菌活性更佳,为厌氧反应器对养猪废水的高效处理提供了保障.
[Abstract]:The effect of sepiolite and biomass carbon on the efficiency of anaerobic treatment of pig wastewater was discussed. The effects of sepiolite and biomass carbon on soluble microbial product (SMPP) and extracellular polymer (EPSs) of anaerobic sludge were analyzed by means of three dimensional fluorescence spectroscopy (EEM) and Fourier transform infrared spectroscopy (FTIR). The results showed that the removal efficiency of COD and ammonia nitrogen was improved by adding sepiolite and biomass carbon, the average removal rate of COD was increased by 10.1% and 15.4% respectively, and the highest removal rate of ammonia nitrogen reached 50.9% and 71.5% respectively. For anaerobic sludge SMP, when sepiolite was added, the absorption peak at 2930 cm ~ (-1) and 1460 cm ~ (-1) in FTIR spectra was weakened, which indicated that the removal of macromolecular organic compounds in pig wastewater was enhanced to some extent, and biomass carbon was added. The absorption peak intensity of the absorption peak of the EEM spectra is decreased, which improves the effluent quality of the anaerobic reactor. For anaerobic sludge EPS, EEM analysis showed that the absorption peak of simple protein in anaerobic sludge was 225nm / 340nm ~ (-1), the intensity of absorption peak of tryptophan protein was increased, and the increase of protein content was beneficial to the flocculation of anaerobic sludge. At the same time, the absorption peak of coenzyme F420Nm / Em / 420nm / 470nm) appeared, which indicated that the methanogenic activity of anaerobic reactor was better after adding biomass carbon, which provided a guarantee for the efficient treatment of pig wastewater by anaerobic reactor.
【作者单位】：岩溶生态与环境变化研究广西高校重点实验室;广西师范大学环境与资源学院;
【基金】：国家自然科学基金资助项目(51641803) 岩溶生态与环境变化研究广西高校重点实验室资助项目(YRHJ16Z007)
【分类号】：X713

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